diff --git a/game/codemirror.js b/game/codemirror.js index 0ec4b8c63..71bd4b791 100644 --- a/game/codemirror.js +++ b/game/codemirror.js @@ -1,10462 +1,10454 @@ -(() => { - function getDocumentZoom() { - //一般body的缩放是xy同步的 - var transform = getComputedStyle(document.body).transform; - if (transform == 'none') transform = 1; - else transform = +transform.slice(7, -1).split(',')[0]; - return +transform; + +function getDocumentZoom() { + //一般body的缩放是xy同步的 + var transform = getComputedStyle(document.body).transform; + // @ts-ignore + if (transform == 'none') transform = 1; + // @ts-ignore + else transform = +transform.slice(7, -1).split(',')[0]; + return +transform; +} + +// BROWSER SNIFFING + +// Kludges for bugs and behavior differences that can't be feature +// detected are enabled based on userAgent etc sniffing. +var userAgent = navigator.userAgent; +var platform = navigator.platform; + +var gecko = /gecko\/\d/i.test(userAgent); +var ie_upto10 = /MSIE \d/.test(userAgent); +var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); +var ie = ie_upto10 || ie_11up; +// @ts-ignore +var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]); +var webkit = /WebKit\//.test(userAgent); +var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); +var chrome = /Chrome\//.test(userAgent); +var presto = /Opera\//.test(userAgent); +var safari = /Apple Computer/.test(navigator.vendor); +var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); +var phantom = /PhantomJS/.test(userAgent); + +var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); +// This is woefully incomplete. Suggestions for alternative methods welcome. +var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); +var mac = ios || /Mac/.test(platform); +var chromeOS = /\bCrOS\b/.test(userAgent); +var windows = /win/i.test(platform); + +var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); +// @ts-ignore +if (presto_version) presto_version = Number(presto_version[1]); +// @ts-ignore +if (presto_version && presto_version >= 15) { presto = false; webkit = true; } +// Some browsers use the wrong event properties to signal cmd/ctrl on OS X +// @ts-ignore +var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); +var captureRightClick = gecko || (ie && ie_version >= 9); + +// Optimize some code when these features are not used. +var sawReadOnlySpans = false, sawCollapsedSpans = false; + +// EDITOR CONSTRUCTOR + +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +// This is CodeMirror (http://codemirror.net), a code editor +// implemented in JavaScript on top of the browser's DOM. +// +// You can find some technical background for some of the code below +// at http://marijnhaverbeke.nl/blog/#cm-internals . + +var CodeMirror = (function () { + + // A CodeMirror instance represents an editor. This is the object + // that user code is usually dealing with. + + function CodeMirror(place, options) { + if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); + + this.options = options = options ? copyObj(options) : {}; + // Determine effective options based on given values and defaults. + copyObj(defaults, options, false); + setGuttersForLineNumbers(options); + + var doc = options.value; + if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator); + this.doc = doc; + + var input = new CodeMirror.inputStyles[options.inputStyle](this); + var display = this.display = new Display(place, doc, input); + display.wrapper.CodeMirror = this; + updateGutters(this); + themeChanged(this); + if (options.lineWrapping) + this.display.wrapper.className += " CodeMirror-wrap"; + if (options.autofocus && !mobile) display.input.focus(); + initScrollbars(this); + + this.state = { + keyMaps: [], // stores maps added by addKeyMap + overlays: [], // highlighting overlays, as added by addOverlay + modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info + overwrite: false, + delayingBlurEvent: false, + focused: false, + suppressEdits: false, // used to disable editing during key handlers when in readOnly mode + pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll + selectingText: false, + draggingText: false, + highlight: new Delayed(), // stores highlight worker timeout + keySeq: null, // Unfinished key sequence + specialChars: null + }; + + var cm = this; + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie && ie_version < 11) setTimeout(function () { cm.display.input.reset(true); }, 20); + + registerEventHandlers(this); + ensureGlobalHandlers(); + + startOperation(this); + this.curOp.forceUpdate = true; + attachDoc(this, doc); + + if ((options.autofocus && !mobile) || cm.hasFocus()) + setTimeout(bind(onFocus, this), 20); + else + onBlur(this); + + for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt)) + optionHandlers[opt](this, options[opt], Init); + maybeUpdateLineNumberWidth(this); + if (options.finishInit) options.finishInit(this); + for (var i = 0; i < initHooks.length; ++i) initHooks[i](this); + endOperation(this); + // Suppress optimizelegibility in Webkit, since it breaks text + // measuring on line wrapping boundaries. + if (webkit && options.lineWrapping && + getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") + display.lineDiv.style.textRendering = "auto"; } - // BROWSER SNIFFING + // DISPLAY CONSTRUCTOR - // Kludges for bugs and behavior differences that can't be feature - // detected are enabled based on userAgent etc sniffing. - var userAgent = navigator.userAgent; - var platform = navigator.platform; + // The display handles the DOM integration, both for input reading + // and content drawing. It holds references to DOM nodes and + // display-related state. - var gecko = /gecko\/\d/i.test(userAgent); - var ie_upto10 = /MSIE \d/.test(userAgent); - var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); - var ie = ie_upto10 || ie_11up; - var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]); - var webkit = /WebKit\//.test(userAgent); - var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); - var chrome = /Chrome\//.test(userAgent); - var presto = /Opera\//.test(userAgent); - var safari = /Apple Computer/.test(navigator.vendor); - var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); - var phantom = /PhantomJS/.test(userAgent); + function Display(place, doc, input) { + var d = this; + this.input = input; - var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); - // This is woefully incomplete. Suggestions for alternative methods welcome. - var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); - var mac = ios || /Mac/.test(platform); - var chromeOS = /\bCrOS\b/.test(userAgent); - var windows = /win/i.test(platform); + // Covers bottom-right square when both scrollbars are present. + d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); + d.scrollbarFiller.setAttribute("cm-not-content", "true"); + // Covers bottom of gutter when coverGutterNextToScrollbar is on + // and h scrollbar is present. + d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); + d.gutterFiller.setAttribute("cm-not-content", "true"); + // Will contain the actual code, positioned to cover the viewport. + d.lineDiv = elt("div", null, "CodeMirror-code"); + // Elements are added to these to represent selection and cursors. + d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); + d.cursorDiv = elt("div", null, "CodeMirror-cursors"); + // A visibility: hidden element used to find the size of things. + d.measure = elt("div", null, "CodeMirror-measure"); + // When lines outside of the viewport are measured, they are drawn in this. + d.lineMeasure = elt("div", null, "CodeMirror-measure"); + // Wraps everything that needs to exist inside the vertically-padded coordinate system + d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none"); + // Moved around its parent to cover visible view. + d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); + // Set to the height of the document, allowing scrolling. + d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); + d.sizerWidth = null; + // Behavior of elts with overflow: auto and padding is + // inconsistent across browsers. This is used to ensure the + // scrollable area is big enough. + d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); + // Will contain the gutters, if any. + d.gutters = elt("div", null, "CodeMirror-gutters"); + d.lineGutter = null; + // Actual scrollable element. + d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); + d.scroller.setAttribute("tabIndex", "-1"); + // The element in which the editor lives. + d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); - var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); - if (presto_version) presto_version = Number(presto_version[1]); - if (presto_version && presto_version >= 15) { presto = false; webkit = true; } - // Some browsers use the wrong event properties to signal cmd/ctrl on OS X - var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); - var captureRightClick = gecko || (ie && ie_version >= 9); + // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) + if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } + if (!webkit && !(gecko && mobile)) d.scroller.draggable = true; - // Optimize some code when these features are not used. - var sawReadOnlySpans = false, sawCollapsedSpans = false; + if (place) { + if (place.appendChild) place.appendChild(d.wrapper); + else place(d.wrapper); + } - // EDITOR CONSTRUCTOR + // Current rendered range (may be bigger than the view window). + d.viewFrom = d.viewTo = doc.first; + d.reportedViewFrom = d.reportedViewTo = doc.first; + // Information about the rendered lines. + d.view = []; + d.renderedView = null; + // Holds info about a single rendered line when it was rendered + // for measurement, while not in view. + d.externalMeasured = null; + // Empty space (in pixels) above the view + d.viewOffset = 0; + d.lastWrapHeight = d.lastWrapWidth = 0; + d.updateLineNumbers = null; - // CodeMirror, copyright (c) by Marijn Haverbeke and others - // Distributed under an MIT license: http://codemirror.net/LICENSE + d.nativeBarWidth = d.barHeight = d.barWidth = 0; + d.scrollbarsClipped = false; - // This is CodeMirror (http://codemirror.net), a code editor - // implemented in JavaScript on top of the browser's DOM. - // - // You can find some technical background for some of the code below - // at http://marijnhaverbeke.nl/blog/#cm-internals . + // Used to only resize the line number gutter when necessary (when + // the amount of lines crosses a boundary that makes its width change) + d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; + // Set to true when a non-horizontal-scrolling line widget is + // added. As an optimization, line widget aligning is skipped when + // this is false. + d.alignWidgets = false; - (function (mod) { - if (typeof exports == "object" && typeof module == "object") // CommonJS - module.exports = mod(); - else if (typeof define == "function" && define.amd) // AMD - return define([], mod); - else // Plain browser env - (this || window).CodeMirror = mod(); - })(function () { + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; - // A CodeMirror instance represents an editor. This is the object - // that user code is usually dealing with. + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + d.maxLine = null; + d.maxLineLength = 0; + d.maxLineChanged = false; - function CodeMirror(place, options) { - if (!(this instanceof CodeMirror)) return new CodeMirror(place, options); + // Used for measuring wheel scrolling granularity + d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; - this.options = options = options ? copyObj(options) : {}; - // Determine effective options based on given values and defaults. - copyObj(defaults, options, false); - setGuttersForLineNumbers(options); + // True when shift is held down. + d.shift = false; - var doc = options.value; - if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator); - this.doc = doc; + // Used to track whether anything happened since the context menu + // was opened. + d.selForContextMenu = null; - var input = new CodeMirror.inputStyles[options.inputStyle](this); - var display = this.display = new Display(place, doc, input); - display.wrapper.CodeMirror = this; - updateGutters(this); - themeChanged(this); - if (options.lineWrapping) - this.display.wrapper.className += " CodeMirror-wrap"; - if (options.autofocus && !mobile) display.input.focus(); - initScrollbars(this); + d.activeTouch = null; - this.state = { - keyMaps: [], // stores maps added by addKeyMap - overlays: [], // highlighting overlays, as added by addOverlay - modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info - overwrite: false, - delayingBlurEvent: false, - focused: false, - suppressEdits: false, // used to disable editing during key handlers when in readOnly mode - pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll - selectingText: false, - draggingText: false, - highlight: new Delayed(), // stores highlight worker timeout - keySeq: null, // Unfinished key sequence - specialChars: null - }; + input.init(d); + } - var cm = this; + // STATE UPDATES - // Override magic textarea content restore that IE sometimes does - // on our hidden textarea on reload - if (ie && ie_version < 11) setTimeout(function () { cm.display.input.reset(true); }, 20); + // Used to get the editor into a consistent state again when options change. - registerEventHandlers(this); - ensureGlobalHandlers(); + function loadMode(cm) { + cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); + resetModeState(cm); + } - startOperation(this); - this.curOp.forceUpdate = true; - attachDoc(this, doc); + function resetModeState(cm) { + cm.doc.iter(function (line) { + if (line.stateAfter) line.stateAfter = null; + if (line.styles) line.styles = null; + }); + cm.doc.frontier = cm.doc.first; + startWorker(cm, 100); + cm.state.modeGen++; + if (cm.curOp) regChange(cm); + } - if ((options.autofocus && !mobile) || cm.hasFocus()) - setTimeout(bind(onFocus, this), 20); + function wrappingChanged(cm) { + if (cm.options.lineWrapping) { + addClass(cm.display.wrapper, "CodeMirror-wrap"); + cm.display.sizer.style.minWidth = ""; + cm.display.sizerWidth = null; + } else { + rmClass(cm.display.wrapper, "CodeMirror-wrap"); + findMaxLine(cm); + } + estimateLineHeights(cm); + regChange(cm); + clearCaches(cm); + setTimeout(function () { updateScrollbars(cm); }, 100); + } + + // Returns a function that estimates the height of a line, to use as + // first approximation until the line becomes visible (and is thus + // properly measurable). + function estimateHeight(cm) { + var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; + var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); + return function (line) { + if (lineIsHidden(cm.doc, line)) return 0; + + var widgetsHeight = 0; + if (line.widgets) for (var i = 0; i < line.widgets.length; i++) { + if (line.widgets[i].height) widgetsHeight += line.widgets[i].height; + } + + if (wrapping) + return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th; else - onBlur(this); + return widgetsHeight + th; + }; + } - for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt)) - optionHandlers[opt](this, options[opt], Init); - maybeUpdateLineNumberWidth(this); - if (options.finishInit) options.finishInit(this); - for (var i = 0; i < initHooks.length; ++i) initHooks[i](this); - endOperation(this); - // Suppress optimizelegibility in Webkit, since it breaks text - // measuring on line wrapping boundaries. - if (webkit && options.lineWrapping && - getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") - display.lineDiv.style.textRendering = "auto"; - } + function estimateLineHeights(cm) { + var doc = cm.doc, est = estimateHeight(cm); + doc.iter(function (line) { + var estHeight = est(line); + if (estHeight != line.height) updateLineHeight(line, estHeight); + }); + } - // DISPLAY CONSTRUCTOR + function themeChanged(cm) { + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + + cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); + clearCaches(cm); + } - // The display handles the DOM integration, both for input reading - // and content drawing. It holds references to DOM nodes and - // display-related state. + function guttersChanged(cm) { + updateGutters(cm); + regChange(cm); + setTimeout(function () { alignHorizontally(cm); }, 20); + } - function Display(place, doc, input) { - var d = this; - this.input = input; - - // Covers bottom-right square when both scrollbars are present. - d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); - d.scrollbarFiller.setAttribute("cm-not-content", "true"); - // Covers bottom of gutter when coverGutterNextToScrollbar is on - // and h scrollbar is present. - d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); - d.gutterFiller.setAttribute("cm-not-content", "true"); - // Will contain the actual code, positioned to cover the viewport. - d.lineDiv = elt("div", null, "CodeMirror-code"); - // Elements are added to these to represent selection and cursors. - d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); - d.cursorDiv = elt("div", null, "CodeMirror-cursors"); - // A visibility: hidden element used to find the size of things. - d.measure = elt("div", null, "CodeMirror-measure"); - // When lines outside of the viewport are measured, they are drawn in this. - d.lineMeasure = elt("div", null, "CodeMirror-measure"); - // Wraps everything that needs to exist inside the vertically-padded coordinate system - d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], - null, "position: relative; outline: none"); - // Moved around its parent to cover visible view. - d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative"); - // Set to the height of the document, allowing scrolling. - d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); - d.sizerWidth = null; - // Behavior of elts with overflow: auto and padding is - // inconsistent across browsers. This is used to ensure the - // scrollable area is big enough. - d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); - // Will contain the gutters, if any. - d.gutters = elt("div", null, "CodeMirror-gutters"); - d.lineGutter = null; - // Actual scrollable element. - d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); - d.scroller.setAttribute("tabIndex", "-1"); - // The element in which the editor lives. - d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); - - // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) - if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } - if (!webkit && !(gecko && mobile)) d.scroller.draggable = true; - - if (place) { - if (place.appendChild) place.appendChild(d.wrapper); - else place(d.wrapper); + // Rebuild the gutter elements, ensure the margin to the left of the + // code matches their width. + function updateGutters(cm) { + var gutters = cm.display.gutters, specs = cm.options.gutters; + removeChildren(gutters); + for (var i = 0; i < specs.length; ++i) { + var gutterClass = specs[i]; + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); + if (gutterClass == "CodeMirror-linenumbers") { + cm.display.lineGutter = gElt; + gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; } - - // Current rendered range (may be bigger than the view window). - d.viewFrom = d.viewTo = doc.first; - d.reportedViewFrom = d.reportedViewTo = doc.first; - // Information about the rendered lines. - d.view = []; - d.renderedView = null; - // Holds info about a single rendered line when it was rendered - // for measurement, while not in view. - d.externalMeasured = null; - // Empty space (in pixels) above the view - d.viewOffset = 0; - d.lastWrapHeight = d.lastWrapWidth = 0; - d.updateLineNumbers = null; - - d.nativeBarWidth = d.barHeight = d.barWidth = 0; - d.scrollbarsClipped = false; - - // Used to only resize the line number gutter when necessary (when - // the amount of lines crosses a boundary that makes its width change) - d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; - // Set to true when a non-horizontal-scrolling line widget is - // added. As an optimization, line widget aligning is skipped when - // this is false. - d.alignWidgets = false; - - d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; - - // Tracks the maximum line length so that the horizontal scrollbar - // can be kept static when scrolling. - d.maxLine = null; - d.maxLineLength = 0; - d.maxLineChanged = false; - - // Used for measuring wheel scrolling granularity - d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; - - // True when shift is held down. - d.shift = false; - - // Used to track whether anything happened since the context menu - // was opened. - d.selForContextMenu = null; - - d.activeTouch = null; - - input.init(d); } + gutters.style.display = i ? "" : "none"; + updateGutterSpace(cm); + } - // STATE UPDATES + function updateGutterSpace(cm) { + var width = cm.display.gutters.offsetWidth; + cm.display.sizer.style.marginLeft = width + "px"; + } - // Used to get the editor into a consistent state again when options change. - - function loadMode(cm) { - cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption); - resetModeState(cm); + // Compute the character length of a line, taking into account + // collapsed ranges (see markText) that might hide parts, and join + // other lines onto it. + function lineLength(line) { + if (line.height == 0) return 0; + var len = line.text.length, merged, cur = line; + while (merged = collapsedSpanAtStart(cur)) { + var found = merged.find(0, true); + cur = found.from.line; + len += found.from.ch - found.to.ch; } - - function resetModeState(cm) { - cm.doc.iter(function (line) { - if (line.stateAfter) line.stateAfter = null; - if (line.styles) line.styles = null; - }); - cm.doc.frontier = cm.doc.first; - startWorker(cm, 100); - cm.state.modeGen++; - if (cm.curOp) regChange(cm); + cur = line; + while (merged = collapsedSpanAtEnd(cur)) { + var found = merged.find(0, true); + len -= cur.text.length - found.from.ch; + cur = found.to.line; + len += cur.text.length - found.to.ch; } + return len; + } - function wrappingChanged(cm) { - if (cm.options.lineWrapping) { - addClass(cm.display.wrapper, "CodeMirror-wrap"); - cm.display.sizer.style.minWidth = ""; - cm.display.sizerWidth = null; + // Find the longest line in the document. + function findMaxLine(cm) { + var d = cm.display, doc = cm.doc; + d.maxLine = getLine(doc, doc.first); + d.maxLineLength = lineLength(d.maxLine); + d.maxLineChanged = true; + doc.iter(function (line) { + var len = lineLength(line); + if (len > d.maxLineLength) { + d.maxLineLength = len; + d.maxLine = line; + } + }); + } + + // Make sure the gutters options contains the element + // "CodeMirror-linenumbers" when the lineNumbers option is true. + function setGuttersForLineNumbers(options) { + var found = indexOf(options.gutters, "CodeMirror-linenumbers"); + if (found == -1 && options.lineNumbers) { + options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); + } else if (found > -1 && !options.lineNumbers) { + options.gutters = options.gutters.slice(0); + options.gutters.splice(found, 1); + } + } + + // SCROLLBARS + + // Prepare DOM reads needed to update the scrollbars. Done in one + // shot to minimize update/measure roundtrips. + function measureForScrollbars(cm) { + var d = cm.display, gutterW = d.gutters.offsetWidth; + var docH = Math.round(cm.doc.height + paddingVert(cm.display)); + return { + clientHeight: d.scroller.clientHeight, + viewHeight: d.wrapper.clientHeight, + scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, + viewWidth: d.wrapper.clientWidth, + barLeft: cm.options.fixedGutter ? gutterW : 0, + docHeight: docH, + scrollHeight: docH + scrollGap(cm) + d.barHeight, + nativeBarWidth: d.nativeBarWidth, + gutterWidth: gutterW + }; + } + + function NativeScrollbars(place, scroll, cm) { + this.cm = cm; + var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); + var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); + place(vert); place(horiz); + + on(vert, "scroll", function () { + if (vert.clientHeight) scroll(vert.scrollTop, "vertical"); + }); + on(horiz, "scroll", function () { + if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal"); + }); + + this.checkedZeroWidth = false; + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; + } + + NativeScrollbars.prototype = copyObj({ + update: function (measure) { + var needsH = measure.scrollWidth > measure.clientWidth + 1; + var needsV = measure.scrollHeight > measure.clientHeight + 1; + var sWidth = measure.nativeBarWidth; + + if (needsV) { + this.vert.style.display = "block"; + this.vert.style.bottom = needsH ? sWidth + "px" : "0"; + var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); + // A bug in IE8 can cause this value to be negative, so guard it. + this.vert.firstChild.style.height = + Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; } else { - rmClass(cm.display.wrapper, "CodeMirror-wrap"); - findMaxLine(cm); - } - estimateLineHeights(cm); - regChange(cm); - clearCaches(cm); - setTimeout(function () { updateScrollbars(cm); }, 100); - } - - // Returns a function that estimates the height of a line, to use as - // first approximation until the line becomes visible (and is thus - // properly measurable). - function estimateHeight(cm) { - var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; - var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); - return function (line) { - if (lineIsHidden(cm.doc, line)) return 0; - - var widgetsHeight = 0; - if (line.widgets) for (var i = 0; i < line.widgets.length; i++) { - if (line.widgets[i].height) widgetsHeight += line.widgets[i].height; - } - - if (wrapping) - return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th; - else - return widgetsHeight + th; - }; - } - - function estimateLineHeights(cm) { - var doc = cm.doc, est = estimateHeight(cm); - doc.iter(function (line) { - var estHeight = est(line); - if (estHeight != line.height) updateLineHeight(line, estHeight); - }); - } - - function themeChanged(cm) { - cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + - cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); - clearCaches(cm); - } - - function guttersChanged(cm) { - updateGutters(cm); - regChange(cm); - setTimeout(function () { alignHorizontally(cm); }, 20); - } - - // Rebuild the gutter elements, ensure the margin to the left of the - // code matches their width. - function updateGutters(cm) { - var gutters = cm.display.gutters, specs = cm.options.gutters; - removeChildren(gutters); - for (var i = 0; i < specs.length; ++i) { - var gutterClass = specs[i]; - var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); - if (gutterClass == "CodeMirror-linenumbers") { - cm.display.lineGutter = gElt; - gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; - } - } - gutters.style.display = i ? "" : "none"; - updateGutterSpace(cm); - } - - function updateGutterSpace(cm) { - var width = cm.display.gutters.offsetWidth; - cm.display.sizer.style.marginLeft = width + "px"; - } - - // Compute the character length of a line, taking into account - // collapsed ranges (see markText) that might hide parts, and join - // other lines onto it. - function lineLength(line) { - if (line.height == 0) return 0; - var len = line.text.length, merged, cur = line; - while (merged = collapsedSpanAtStart(cur)) { - var found = merged.find(0, true); - cur = found.from.line; - len += found.from.ch - found.to.ch; - } - cur = line; - while (merged = collapsedSpanAtEnd(cur)) { - var found = merged.find(0, true); - len -= cur.text.length - found.from.ch; - cur = found.to.line; - len += cur.text.length - found.to.ch; - } - return len; - } - - // Find the longest line in the document. - function findMaxLine(cm) { - var d = cm.display, doc = cm.doc; - d.maxLine = getLine(doc, doc.first); - d.maxLineLength = lineLength(d.maxLine); - d.maxLineChanged = true; - doc.iter(function (line) { - var len = lineLength(line); - if (len > d.maxLineLength) { - d.maxLineLength = len; - d.maxLine = line; - } - }); - } - - // Make sure the gutters options contains the element - // "CodeMirror-linenumbers" when the lineNumbers option is true. - function setGuttersForLineNumbers(options) { - var found = indexOf(options.gutters, "CodeMirror-linenumbers"); - if (found == -1 && options.lineNumbers) { - options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); - } else if (found > -1 && !options.lineNumbers) { - options.gutters = options.gutters.slice(0); - options.gutters.splice(found, 1); - } - } - - // SCROLLBARS - - // Prepare DOM reads needed to update the scrollbars. Done in one - // shot to minimize update/measure roundtrips. - function measureForScrollbars(cm) { - var d = cm.display, gutterW = d.gutters.offsetWidth; - var docH = Math.round(cm.doc.height + paddingVert(cm.display)); - return { - clientHeight: d.scroller.clientHeight, - viewHeight: d.wrapper.clientHeight, - scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, - viewWidth: d.wrapper.clientWidth, - barLeft: cm.options.fixedGutter ? gutterW : 0, - docHeight: docH, - scrollHeight: docH + scrollGap(cm) + d.barHeight, - nativeBarWidth: d.nativeBarWidth, - gutterWidth: gutterW - }; - } - - function NativeScrollbars(place, scroll, cm) { - this.cm = cm; - var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); - var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); - place(vert); place(horiz); - - on(vert, "scroll", function () { - if (vert.clientHeight) scroll(vert.scrollTop, "vertical"); - }); - on(horiz, "scroll", function () { - if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal"); - }); - - this.checkedZeroWidth = false; - // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). - if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; - } - - NativeScrollbars.prototype = copyObj({ - update: function (measure) { - var needsH = measure.scrollWidth > measure.clientWidth + 1; - var needsV = measure.scrollHeight > measure.clientHeight + 1; - var sWidth = measure.nativeBarWidth; - - if (needsV) { - this.vert.style.display = "block"; - this.vert.style.bottom = needsH ? sWidth + "px" : "0"; - var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); - // A bug in IE8 can cause this value to be negative, so guard it. - this.vert.firstChild.style.height = - Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; - } else { - this.vert.style.display = ""; - this.vert.firstChild.style.height = "0"; - } - - if (needsH) { - this.horiz.style.display = "block"; - this.horiz.style.right = needsV ? sWidth + "px" : "0"; - this.horiz.style.left = measure.barLeft + "px"; - var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); - this.horiz.firstChild.style.width = - (measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; - } else { - this.horiz.style.display = ""; - this.horiz.firstChild.style.width = "0"; - } - - if (!this.checkedZeroWidth && measure.clientHeight > 0) { - if (sWidth == 0) this.zeroWidthHack(); - this.checkedZeroWidth = true; - } - - return { right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0 }; - }, - setScrollLeft: function (pos) { - if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos; - if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz); - }, - setScrollTop: function (pos) { - if (this.vert.scrollTop != pos) this.vert.scrollTop = pos; - if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert); - }, - zeroWidthHack: function () { - var w = mac && !mac_geMountainLion ? "12px" : "18px"; - this.horiz.style.height = this.vert.style.width = w; - this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; - this.disableHoriz = new Delayed; - this.disableVert = new Delayed; - }, - enableZeroWidthBar: function (bar, delay) { - bar.style.pointerEvents = "auto"; - function maybeDisable() { - // To find out whether the scrollbar is still visible, we - // check whether the element under the pixel in the bottom - // left corner of the scrollbar box is the scrollbar box - // itself (when the bar is still visible) or its filler child - // (when the bar is hidden). If it is still visible, we keep - // it enabled, if it's hidden, we disable pointer events. - var box = bar.getBoundingClientRect(); - var elt = document.elementFromPoint(box.left + 1, box.bottom - 1); - if (elt != bar) bar.style.pointerEvents = "none"; - else delay.set(1000, maybeDisable); - } - delay.set(1000, maybeDisable); - }, - clear: function () { - var parent = this.horiz.parentNode; - parent.removeChild(this.horiz); - parent.removeChild(this.vert); - } - }, NativeScrollbars.prototype); - - function NullScrollbars() { } - - NullScrollbars.prototype = copyObj({ - update: function () { return { bottom: 0, right: 0 }; }, - setScrollLeft: function () { }, - setScrollTop: function () { }, - clear: function () { } - }, NullScrollbars.prototype); - - CodeMirror.scrollbarModel = { "native": NativeScrollbars, "null": NullScrollbars }; - - function initScrollbars(cm) { - if (cm.display.scrollbars) { - cm.display.scrollbars.clear(); - if (cm.display.scrollbars.addClass) - rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); + this.vert.style.display = ""; + this.vert.firstChild.style.height = "0"; } - cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function (node) { - cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); - // Prevent clicks in the scrollbars from killing focus - on(node, "mousedown", function () { - if (cm.state.focused) setTimeout(function () { cm.display.input.focus(); }, 0); - }); - node.setAttribute("cm-not-content", "true"); - }, function (pos, axis) { - if (axis == "horizontal") setScrollLeft(cm, pos); - else setScrollTop(cm, pos); - }, cm); + if (needsH) { + this.horiz.style.display = "block"; + this.horiz.style.right = needsV ? sWidth + "px" : "0"; + this.horiz.style.left = measure.barLeft + "px"; + var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); + this.horiz.firstChild.style.width = + (measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; + } else { + this.horiz.style.display = ""; + this.horiz.firstChild.style.width = "0"; + } + + if (!this.checkedZeroWidth && measure.clientHeight > 0) { + if (sWidth == 0) this.zeroWidthHack(); + this.checkedZeroWidth = true; + } + + return { right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0 }; + }, + setScrollLeft: function (pos) { + if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos; + if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz); + }, + setScrollTop: function (pos) { + if (this.vert.scrollTop != pos) this.vert.scrollTop = pos; + if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert); + }, + zeroWidthHack: function () { + var w = mac && !mac_geMountainLion ? "12px" : "18px"; + this.horiz.style.height = this.vert.style.width = w; + this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; + this.disableHoriz = new Delayed; + this.disableVert = new Delayed; + }, + enableZeroWidthBar: function (bar, delay) { + bar.style.pointerEvents = "auto"; + function maybeDisable() { + // To find out whether the scrollbar is still visible, we + // check whether the element under the pixel in the bottom + // left corner of the scrollbar box is the scrollbar box + // itself (when the bar is still visible) or its filler child + // (when the bar is hidden). If it is still visible, we keep + // it enabled, if it's hidden, we disable pointer events. + var box = bar.getBoundingClientRect(); + var elt = document.elementFromPoint(box.left + 1, box.bottom - 1); + if (elt != bar) bar.style.pointerEvents = "none"; + else delay.set(1000, maybeDisable); + } + delay.set(1000, maybeDisable); + }, + clear: function () { + var parent = this.horiz.parentNode; + parent.removeChild(this.horiz); + parent.removeChild(this.vert); + } + }, NativeScrollbars.prototype); + + function NullScrollbars() { } + + NullScrollbars.prototype = copyObj({ + update: function () { return { bottom: 0, right: 0 }; }, + setScrollLeft: function () { }, + setScrollTop: function () { }, + clear: function () { } + }, NullScrollbars.prototype); + + CodeMirror.scrollbarModel = { "native": NativeScrollbars, "null": NullScrollbars }; + + function initScrollbars(cm) { + if (cm.display.scrollbars) { + cm.display.scrollbars.clear(); if (cm.display.scrollbars.addClass) - addClass(cm.display.wrapper, cm.display.scrollbars.addClass); + rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } - function updateScrollbars(cm, measure) { - if (!measure) measure = measureForScrollbars(cm); - var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; - updateScrollbarsInner(cm, measure); - for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { - if (startWidth != cm.display.barWidth && cm.options.lineWrapping) - updateHeightsInViewport(cm); - updateScrollbarsInner(cm, measureForScrollbars(cm)); - startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; + cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function (node) { + cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); + // Prevent clicks in the scrollbars from killing focus + on(node, "mousedown", function () { + if (cm.state.focused) setTimeout(function () { cm.display.input.focus(); }, 0); + }); + node.setAttribute("cm-not-content", "true"); + }, function (pos, axis) { + if (axis == "horizontal") setScrollLeft(cm, pos); + else setScrollTop(cm, pos); + }, cm); + if (cm.display.scrollbars.addClass) + addClass(cm.display.wrapper, cm.display.scrollbars.addClass); + } + + function updateScrollbars(cm, measure) { + if (!measure) measure = measureForScrollbars(cm); + var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; + updateScrollbarsInner(cm, measure); + for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { + if (startWidth != cm.display.barWidth && cm.options.lineWrapping) + updateHeightsInViewport(cm); + updateScrollbarsInner(cm, measureForScrollbars(cm)); + startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; + } + } + + // Re-synchronize the fake scrollbars with the actual size of the + // content. + function updateScrollbarsInner(cm, measure) { + var d = cm.display; + var sizes = d.scrollbars.update(measure); + + d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; + d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; + d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent" + + if (sizes.right && sizes.bottom) { + d.scrollbarFiller.style.display = "block"; + d.scrollbarFiller.style.height = sizes.bottom + "px"; + d.scrollbarFiller.style.width = sizes.right + "px"; + } else d.scrollbarFiller.style.display = ""; + if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { + d.gutterFiller.style.display = "block"; + d.gutterFiller.style.height = sizes.bottom + "px"; + d.gutterFiller.style.width = measure.gutterWidth + "px"; + } else d.gutterFiller.style.display = ""; + } + + // Compute the lines that are visible in a given viewport (defaults + // the the current scroll position). viewport may contain top, + // height, and ensure (see op.scrollToPos) properties. + function visibleLines(display, doc, viewport) { + var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; + top = Math.floor(top - paddingTop(display)); + var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; + + var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); + // Ensure is a {from: {line, ch}, to: {line, ch}} object, and + // forces those lines into the viewport (if possible). + if (viewport && viewport.ensure) { + var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; + if (ensureFrom < from) { + from = ensureFrom; + to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); + } else if (Math.min(ensureTo, doc.lastLine()) >= to) { + from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); + to = ensureTo; } } + return { from: from, to: Math.max(to, from + 1) }; + } - // Re-synchronize the fake scrollbars with the actual size of the - // content. - function updateScrollbarsInner(cm, measure) { - var d = cm.display; - var sizes = d.scrollbars.update(measure); + // LINE NUMBERS - d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; - d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; - d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent" - - if (sizes.right && sizes.bottom) { - d.scrollbarFiller.style.display = "block"; - d.scrollbarFiller.style.height = sizes.bottom + "px"; - d.scrollbarFiller.style.width = sizes.right + "px"; - } else d.scrollbarFiller.style.display = ""; - if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { - d.gutterFiller.style.display = "block"; - d.gutterFiller.style.height = sizes.bottom + "px"; - d.gutterFiller.style.width = measure.gutterWidth + "px"; - } else d.gutterFiller.style.display = ""; + // Re-align line numbers and gutter marks to compensate for + // horizontal scrolling. + function alignHorizontally(cm) { + var display = cm.display, view = display.view; + if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; + var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; + var gutterW = display.gutters.offsetWidth, left = comp + "px"; + for (var i = 0; i < view.length; i++) if (!view[i].hidden) { + if (cm.options.fixedGutter && view[i].gutter) + view[i].gutter.style.left = left; + var align = view[i].alignable; + if (align) for (var j = 0; j < align.length; j++) + align[j].style.left = left; } + if (cm.options.fixedGutter) + display.gutters.style.left = (comp + gutterW) + "px"; + } - // Compute the lines that are visible in a given viewport (defaults - // the the current scroll position). viewport may contain top, - // height, and ensure (see op.scrollToPos) properties. - function visibleLines(display, doc, viewport) { - var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; - top = Math.floor(top - paddingTop(display)); - var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; - - var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); - // Ensure is a {from: {line, ch}, to: {line, ch}} object, and - // forces those lines into the viewport (if possible). - if (viewport && viewport.ensure) { - var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; - if (ensureFrom < from) { - from = ensureFrom; - to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); - } else if (Math.min(ensureTo, doc.lastLine()) >= to) { - from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); - to = ensureTo; - } - } - return { from: from, to: Math.max(to, from + 1) }; + // Used to ensure that the line number gutter is still the right + // size for the current document size. Returns true when an update + // is needed. + function maybeUpdateLineNumberWidth(cm) { + if (!cm.options.lineNumbers) return false; + var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; + var documentZoom = getDocumentZoom(); + if (last.length != display.lineNumChars) { + var test = display.measure.appendChild(elt("div", [elt("div", last)], + "CodeMirror-linenumber CodeMirror-gutter-elt")); + var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; + display.lineGutter.style.width = ""; + display.lineNumInnerWidth = (Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1) /* / documentZoom */; + display.lineNumWidth = (display.lineNumInnerWidth + padding) /* / documentZoom */; + display.lineNumChars = (display.lineNumInnerWidth ? last.length : -1) /* / documentZoom */; + display.lineGutter.style.width = display.lineNumWidth + "px"; + updateGutterSpace(cm); + return true; } + return false; + } - // LINE NUMBERS + function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)); + } - // Re-align line numbers and gutter marks to compensate for - // horizontal scrolling. - function alignHorizontally(cm) { - var display = cm.display, view = display.view; - if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return; - var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; - var gutterW = display.gutters.offsetWidth, left = comp + "px"; - for (var i = 0; i < view.length; i++) if (!view[i].hidden) { - if (cm.options.fixedGutter && view[i].gutter) - view[i].gutter.style.left = left; - var align = view[i].alignable; - if (align) for (var j = 0; j < align.length; j++) - align[j].style.left = left; - } - if (cm.options.fixedGutter) - display.gutters.style.left = (comp + gutterW) + "px"; + // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, + // but using getBoundingClientRect to get a sub-pixel-accurate + // result. + function compensateForHScroll(display) { + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left; + } + + // DISPLAY DRAWING + + function DisplayUpdate(cm, viewport, force) { + var display = cm.display; + + this.viewport = viewport; + // Store some values that we'll need later (but don't want to force a relayout for) + this.visible = visibleLines(display, cm.doc, viewport); + this.editorIsHidden = !display.wrapper.offsetWidth; + this.wrapperHeight = display.wrapper.clientHeight; + this.wrapperWidth = display.wrapper.clientWidth; + this.oldDisplayWidth = displayWidth(cm); + this.force = force; + this.dims = getDimensions(cm); + this.events = []; + } + + DisplayUpdate.prototype.signal = function (emitter, type) { + if (hasHandler(emitter, type)) + this.events.push(arguments); + }; + DisplayUpdate.prototype.finish = function () { + for (var i = 0; i < this.events.length; i++) + signal.apply(null, this.events[i]); + }; + + function maybeClipScrollbars(cm) { + var display = cm.display; + if (!display.scrollbarsClipped && display.scroller.offsetWidth) { + display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; + display.heightForcer.style.height = scrollGap(cm) + "px"; + display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; + display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; + display.scrollbarsClipped = true; } + } - // Used to ensure that the line number gutter is still the right - // size for the current document size. Returns true when an update - // is needed. - function maybeUpdateLineNumberWidth(cm) { - if (!cm.options.lineNumbers) return false; - var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; - var documentZoom = getDocumentZoom(); - if (last.length != display.lineNumChars) { - var test = display.measure.appendChild(elt("div", [elt("div", last)], - "CodeMirror-linenumber CodeMirror-gutter-elt")); - var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; - display.lineGutter.style.width = ""; - display.lineNumInnerWidth = (Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1) /* / documentZoom */; - display.lineNumWidth = (display.lineNumInnerWidth + padding) /* / documentZoom */; - display.lineNumChars = (display.lineNumInnerWidth ? last.length : -1) /* / documentZoom */; - display.lineGutter.style.width = display.lineNumWidth + "px"; - updateGutterSpace(cm); - return true; - } + // Does the actual updating of the line display. Bails out + // (returning false) when there is nothing to be done and forced is + // false. + function updateDisplayIfNeeded(cm, update) { + var display = cm.display, doc = cm.doc; + + if (update.editorIsHidden) { + resetView(cm); return false; } - function lineNumberFor(options, i) { - return String(options.lineNumberFormatter(i + options.firstLineNumber)); + // Bail out if the visible area is already rendered and nothing changed. + if (!update.force && + update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && + display.renderedView == display.view && countDirtyView(cm) == 0) + return false; + + if (maybeUpdateLineNumberWidth(cm)) { + resetView(cm); + update.dims = getDimensions(cm); } - // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, - // but using getBoundingClientRect to get a sub-pixel-accurate - // result. - function compensateForHScroll(display) { - return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left; + // Compute a suitable new viewport (from & to) + var end = doc.first + doc.size; + var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); + var to = Math.min(end, update.visible.to + cm.options.viewportMargin); + if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom); + if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo); + if (sawCollapsedSpans) { + from = visualLineNo(cm.doc, from); + to = visualLineEndNo(cm.doc, to); } - // DISPLAY DRAWING + var different = from != display.viewFrom || to != display.viewTo || + display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; + adjustView(cm, from, to); - function DisplayUpdate(cm, viewport, force) { - var display = cm.display; + display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); + // Position the mover div to align with the current scroll position + cm.display.mover.style.top = display.viewOffset + "px"; - this.viewport = viewport; - // Store some values that we'll need later (but don't want to force a relayout for) - this.visible = visibleLines(display, cm.doc, viewport); - this.editorIsHidden = !display.wrapper.offsetWidth; - this.wrapperHeight = display.wrapper.clientHeight; - this.wrapperWidth = display.wrapper.clientWidth; - this.oldDisplayWidth = displayWidth(cm); - this.force = force; - this.dims = getDimensions(cm); - this.events = []; + var toUpdate = countDirtyView(cm); + if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) + return false; + + // For big changes, we hide the enclosing element during the + // update, since that speeds up the operations on most browsers. + var focused = activeElt(); + if (toUpdate > 4) display.lineDiv.style.display = "none"; + patchDisplay(cm, display.updateLineNumbers, update.dims); + if (toUpdate > 4) display.lineDiv.style.display = ""; + display.renderedView = display.view; + // There might have been a widget with a focused element that got + // hidden or updated, if so re-focus it. + if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); + + // Prevent selection and cursors from interfering with the scroll + // width and height. + removeChildren(display.cursorDiv); + removeChildren(display.selectionDiv); + display.gutters.style.height = display.sizer.style.minHeight = 0; + + if (different) { + display.lastWrapHeight = update.wrapperHeight; + display.lastWrapWidth = update.wrapperWidth; + startWorker(cm, 400); } - DisplayUpdate.prototype.signal = function (emitter, type) { - if (hasHandler(emitter, type)) - this.events.push(arguments); - }; - DisplayUpdate.prototype.finish = function () { - for (var i = 0; i < this.events.length; i++) - signal.apply(null, this.events[i]); + display.updateLineNumbers = null; + + return true; + } + + function postUpdateDisplay(cm, update) { + var viewport = update.viewport; + + for (var first = true; ; first = false) { + if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { + // Clip forced viewport to actual scrollable area. + if (viewport && viewport.top != null) + viewport = { top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top) }; + // Updated line heights might result in the drawn area not + // actually covering the viewport. Keep looping until it does. + update.visible = visibleLines(cm.display, cm.doc, viewport); + if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) + break; + } + if (!updateDisplayIfNeeded(cm, update)) break; + updateHeightsInViewport(cm); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + updateScrollbars(cm, barMeasure); + setDocumentHeight(cm, barMeasure); + } + + update.signal(cm, "update", cm); + if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { + update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); + cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; + } + } + + function updateDisplaySimple(cm, viewport) { + var update = new DisplayUpdate(cm, viewport); + if (updateDisplayIfNeeded(cm, update)) { + updateHeightsInViewport(cm); + postUpdateDisplay(cm, update); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + updateScrollbars(cm, barMeasure); + setDocumentHeight(cm, barMeasure); + update.finish(); + } + } + + function setDocumentHeight(cm, measure) { + var documentZoom = getDocumentZoom(); + cm.display.sizer.style.minHeight = measure.docHeight / documentZoom + "px"; + cm.display.heightForcer.style.top = measure.docHeight / documentZoom + "px"; + cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) / documentZoom + "px"; + } + + // Read the actual heights of the rendered lines, and update their + // stored heights to match. + function updateHeightsInViewport(cm) { + var display = cm.display; + var prevBottom = display.lineDiv.offsetTop; + for (var i = 0; i < display.view.length; i++) { + var cur = display.view[i], height; + if (cur.hidden) continue; + if (ie && ie_version < 8) { + var bot = cur.node.offsetTop + cur.node.offsetHeight; + height = bot - prevBottom; + prevBottom = bot; + } else { + var box = cur.node.getBoundingClientRect(); + height = box.bottom - box.top; + } + var diff = cur.line.height - height; + if (height < 2) height = textHeight(display); + if (diff > .001 || diff < -.001) { + updateLineHeight(cur.line, height); + updateWidgetHeight(cur.line); + if (cur.rest) for (var j = 0; j < cur.rest.length; j++) + updateWidgetHeight(cur.rest[j]); + } + } + } + + // Read and store the height of line widgets associated with the + // given line. + function updateWidgetHeight(line) { + if (line.widgets) for (var i = 0; i < line.widgets.length; ++i) + line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight; + } + + // Do a bulk-read of the DOM positions and sizes needed to draw the + // view, so that we don't interleave reading and writing to the DOM. + function getDimensions(cm) { + var d = cm.display, left = {}, width = {}; + var gutterLeft = d.gutters.clientLeft; + for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { + left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; + width[cm.options.gutters[i]] = n.clientWidth; + } + return { + fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth }; + } - function maybeClipScrollbars(cm) { - var display = cm.display; - if (!display.scrollbarsClipped && display.scroller.offsetWidth) { - display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; - display.heightForcer.style.height = scrollGap(cm) + "px"; - display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; - display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; - display.scrollbarsClipped = true; + // Sync the actual display DOM structure with display.view, removing + // nodes for lines that are no longer in view, and creating the ones + // that are not there yet, and updating the ones that are out of + // date. + function patchDisplay(cm, updateNumbersFrom, dims) { + var display = cm.display, lineNumbers = cm.options.lineNumbers; + var container = display.lineDiv, cur = container.firstChild; + + function rm(node) { + var next = node.nextSibling; + // Works around a throw-scroll bug in OS X Webkit + if (webkit && mac && cm.display.currentWheelTarget == node) + node.style.display = "none"; + else + node.parentNode.removeChild(node); + return next; + } + + var view = display.view, lineN = display.viewFrom; + // Loop over the elements in the view, syncing cur (the DOM nodes + // in display.lineDiv) with the view as we go. + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (lineView.hidden) { + } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet + var node = buildLineElement(cm, lineView, lineN, dims); + container.insertBefore(node, cur); + } else { // Already drawn + while (cur != lineView.node) cur = rm(cur); + var updateNumber = lineNumbers && updateNumbersFrom != null && + updateNumbersFrom <= lineN && lineView.lineNumber; + if (lineView.changes) { + if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false; + updateLineForChanges(cm, lineView, lineN, dims); + } + if (updateNumber) { + removeChildren(lineView.lineNumber); + lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); + } + cur = lineView.node.nextSibling; + } + lineN += lineView.size; + } + while (cur) cur = rm(cur); + } + + // When an aspect of a line changes, a string is added to + // lineView.changes. This updates the relevant part of the line's + // DOM structure. + function updateLineForChanges(cm, lineView, lineN, dims) { + for (var j = 0; j < lineView.changes.length; j++) { + var type = lineView.changes[j]; + if (type == "text") updateLineText(cm, lineView); + else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims); + else if (type == "class") updateLineClasses(lineView); + else if (type == "widget") updateLineWidgets(cm, lineView, dims); + } + lineView.changes = null; + } + + // Lines with gutter elements, widgets or a background class need to + // be wrapped, and have the extra elements added to the wrapper div + function ensureLineWrapped(lineView) { + if (lineView.node == lineView.text) { + lineView.node = elt("div", null, null, "position: relative"); + if (lineView.text.parentNode) + lineView.text.parentNode.replaceChild(lineView.node, lineView.text); + lineView.node.appendChild(lineView.text); + if (ie && ie_version < 8) lineView.node.style.zIndex = 2; + } + return lineView.node; + } + + function updateLineBackground(lineView) { + var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; + if (cls) cls += " CodeMirror-linebackground"; + if (lineView.background) { + if (cls) lineView.background.className = cls; + else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } + } else if (cls) { + var wrap = ensureLineWrapped(lineView); + lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); + } + } + + // Wrapper around buildLineContent which will reuse the structure + // in display.externalMeasured when possible. + function getLineContent(cm, lineView) { + var ext = cm.display.externalMeasured; + if (ext && ext.line == lineView.line) { + cm.display.externalMeasured = null; + lineView.measure = ext.measure; + return ext.built; + } + return buildLineContent(cm, lineView); + } + + // Redraw the line's text. Interacts with the background and text + // classes because the mode may output tokens that influence these + // classes. + function updateLineText(cm, lineView) { + var cls = lineView.text.className; + var built = getLineContent(cm, lineView); + if (lineView.text == lineView.node) lineView.node = built.pre; + lineView.text.parentNode.replaceChild(built.pre, lineView.text); + lineView.text = built.pre; + if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { + lineView.bgClass = built.bgClass; + lineView.textClass = built.textClass; + updateLineClasses(lineView); + } else if (cls) { + lineView.text.className = cls; + } + } + + function updateLineClasses(lineView) { + updateLineBackground(lineView); + if (lineView.line.wrapClass) + ensureLineWrapped(lineView).className = lineView.line.wrapClass; + else if (lineView.node != lineView.text) + lineView.node.className = ""; + var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; + lineView.text.className = textClass || ""; + } + + function updateLineGutter(cm, lineView, lineN, dims) { + if (lineView.gutter) { + lineView.node.removeChild(lineView.gutter); + lineView.gutter = null; + } + if (lineView.gutterBackground) { + lineView.node.removeChild(lineView.gutterBackground); + lineView.gutterBackground = null; + } + if (lineView.line.gutterClass) { + var wrap = ensureLineWrapped(lineView); + lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, + "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + + "px; width: " + dims.gutterTotalWidth + "px"); + wrap.insertBefore(lineView.gutterBackground, lineView.text); + } + var markers = lineView.line.gutterMarkers; + if (cm.options.lineNumbers || markers) { + var wrap = ensureLineWrapped(lineView); + var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " + + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"); + cm.display.input.setUneditable(gutterWrap); + wrap.insertBefore(gutterWrap, lineView.text); + if (lineView.line.gutterClass) + gutterWrap.className += " " + lineView.line.gutterClass; + if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) + lineView.lineNumber = gutterWrap.appendChild( + elt("div", lineNumberFor(cm.options, lineN), + "CodeMirror-linenumber CodeMirror-gutter-elt", + "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " + + cm.display.lineNumInnerWidth + "px")); + if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) { + var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; + if (found) + gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + + dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] / + "px")); + } + } + } + + function updateLineWidgets(cm, lineView, dims) { + if (lineView.alignable) lineView.alignable = null; + for (var node = lineView.node.firstChild, next; node; node = next) { + var next = node.nextSibling; + if (node.className == "CodeMirror-linewidget") + lineView.node.removeChild(node); + } + insertLineWidgets(cm, lineView, dims); + } + + // Build a line's DOM representation from scratch + function buildLineElement(cm, lineView, lineN, dims) { + var built = getLineContent(cm, lineView); + lineView.text = lineView.node = built.pre; + if (built.bgClass) lineView.bgClass = built.bgClass; + if (built.textClass) lineView.textClass = built.textClass; + + updateLineClasses(lineView); + updateLineGutter(cm, lineView, lineN, dims); + insertLineWidgets(cm, lineView, dims); + return lineView.node; + } + + // A lineView may contain multiple logical lines (when merged by + // collapsed spans). The widgets for all of them need to be drawn. + function insertLineWidgets(cm, lineView, dims) { + insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); + if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) + insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); + } + + function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { + if (!line.widgets) return; + var wrap = ensureLineWrapped(lineView); + for (var i = 0, ws = line.widgets; i < ws.length; ++i) { + var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); + if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true"); + positionLineWidget(widget, node, lineView, dims); + cm.display.input.setUneditable(node); + if (allowAbove && widget.above) + wrap.insertBefore(node, lineView.gutter || lineView.text); + else + wrap.appendChild(node); + signalLater(widget, "redraw"); + } + } + + function positionLineWidget(widget, node, lineView, dims) { + if (widget.noHScroll) { + (lineView.alignable || (lineView.alignable = [])).push(node); + var width = dims.wrapperWidth; + node.style.left = dims.fixedPos + "px"; + if (!widget.coverGutter) { + width -= dims.gutterTotalWidth; + node.style.paddingLeft = dims.gutterTotalWidth + "px"; + } + node.style.width = width + "px"; + } + if (widget.coverGutter) { + node.style.zIndex = 5; + node.style.position = "relative"; + if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; + } + } + + // POSITION OBJECT + + // A Pos instance represents a position within the text. + var Pos = CodeMirror.Pos = function (line, ch) { + if (!(this instanceof Pos)) return new Pos(line, ch); + this.line = line; this.ch = ch; + }; + + // Compare two positions, return 0 if they are the same, a negative + // number when a is less, and a positive number otherwise. + var cmp = CodeMirror.cmpPos = function (a, b) { return a.line - b.line || a.ch - b.ch; }; + + function copyPos(x) { return Pos(x.line, x.ch); } + function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; } + function minPos(a, b) { return cmp(a, b) < 0 ? a : b; } + + // INPUT HANDLING + + function ensureFocus(cm) { + if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } + } + + // This will be set to a {lineWise: bool, text: [string]} object, so + // that, when pasting, we know what kind of selections the copied + // text was made out of. + var lastCopied = null; + + function applyTextInput(cm, inserted, deleted, sel, origin) { + var doc = cm.doc; + cm.display.shift = false; + if (!sel) sel = doc.sel; + + var paste = cm.state.pasteIncoming || origin == "paste"; + var textLines = doc.splitLines(inserted), multiPaste = null + // When pasing N lines into N selections, insert one line per selection + if (paste && sel.ranges.length > 1) { + if (lastCopied && lastCopied.text.join("\n") == inserted) { + if (sel.ranges.length % lastCopied.text.length == 0) { + multiPaste = []; + for (var i = 0; i < lastCopied.text.length; i++) + multiPaste.push(doc.splitLines(lastCopied.text[i])); + } + } else if (textLines.length == sel.ranges.length) { + multiPaste = map(textLines, function (l) { return [l]; }); } } - // Does the actual updating of the line display. Bails out - // (returning false) when there is nothing to be done and forced is - // false. - function updateDisplayIfNeeded(cm, update) { - var display = cm.display, doc = cm.doc; - - if (update.editorIsHidden) { - resetView(cm); - return false; + // Normal behavior is to insert the new text into every selection + for (var i = sel.ranges.length - 1; i >= 0; i--) { + var range = sel.ranges[i]; + var from = range.from(), to = range.to(); + if (range.empty()) { + if (deleted && deleted > 0) // Handle deletion + from = Pos(from.line, from.ch - deleted); + else if (cm.state.overwrite && !paste) // Handle overwrite + to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); + else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) + from = to = Pos(from.line, 0) } + var updateInput = cm.curOp.updateInput; + var changeEvent = { + from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines, + origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input") + }; + makeChange(cm.doc, changeEvent); + signalLater(cm, "inputRead", cm, changeEvent); + } + if (inserted && !paste) + triggerElectric(cm, inserted); - // Bail out if the visible area is already rendered and nothing changed. - if (!update.force && - update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && - (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && - display.renderedView == display.view && countDirtyView(cm) == 0) - return false; - - if (maybeUpdateLineNumberWidth(cm)) { - resetView(cm); - update.dims = getDimensions(cm); - } - - // Compute a suitable new viewport (from & to) - var end = doc.first + doc.size; - var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); - var to = Math.min(end, update.visible.to + cm.options.viewportMargin); - if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom); - if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo); - if (sawCollapsedSpans) { - from = visualLineNo(cm.doc, from); - to = visualLineEndNo(cm.doc, to); - } - - var different = from != display.viewFrom || to != display.viewTo || - display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; - adjustView(cm, from, to); - - display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); - // Position the mover div to align with the current scroll position - cm.display.mover.style.top = display.viewOffset + "px"; - - var toUpdate = countDirtyView(cm); - if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && - (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) - return false; - - // For big changes, we hide the enclosing element during the - // update, since that speeds up the operations on most browsers. - var focused = activeElt(); - if (toUpdate > 4) display.lineDiv.style.display = "none"; - patchDisplay(cm, display.updateLineNumbers, update.dims); - if (toUpdate > 4) display.lineDiv.style.display = ""; - display.renderedView = display.view; - // There might have been a widget with a focused element that got - // hidden or updated, if so re-focus it. - if (focused && activeElt() != focused && focused.offsetHeight) focused.focus(); - - // Prevent selection and cursors from interfering with the scroll - // width and height. - removeChildren(display.cursorDiv); - removeChildren(display.selectionDiv); - display.gutters.style.height = display.sizer.style.minHeight = 0; - - if (different) { - display.lastWrapHeight = update.wrapperHeight; - display.lastWrapWidth = update.wrapperWidth; - startWorker(cm, 400); - } - - display.updateLineNumbers = null; + ensureCursorVisible(cm); + cm.curOp.updateInput = updateInput; + cm.curOp.typing = true; + cm.state.pasteIncoming = cm.state.cutIncoming = false; + } + function handlePaste(e, cm) { + var pasted = e.clipboardData && e.clipboardData.getData("text/plain"); + if (pasted) { + e.preventDefault(); + if (!cm.isReadOnly() && !cm.options.disableInput) + runInOp(cm, function () { applyTextInput(cm, pasted, 0, null, "paste"); }); return true; } + } - function postUpdateDisplay(cm, update) { - var viewport = update.viewport; + function triggerElectric(cm, inserted) { + // When an 'electric' character is inserted, immediately trigger a reindent + if (!cm.options.electricChars || !cm.options.smartIndent) return; + var sel = cm.doc.sel; - for (var first = true; ; first = false) { - if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { - // Clip forced viewport to actual scrollable area. - if (viewport && viewport.top != null) - viewport = { top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top) }; - // Updated line heights might result in the drawn area not - // actually covering the viewport. Keep looping until it does. - update.visible = visibleLines(cm.display, cm.doc, viewport); - if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) - break; - } - if (!updateDisplayIfNeeded(cm, update)) break; - updateHeightsInViewport(cm); - var barMeasure = measureForScrollbars(cm); - updateSelection(cm); - updateScrollbars(cm, barMeasure); - setDocumentHeight(cm, barMeasure); - } - - update.signal(cm, "update", cm); - if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { - update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); - cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; - } - } - - function updateDisplaySimple(cm, viewport) { - var update = new DisplayUpdate(cm, viewport); - if (updateDisplayIfNeeded(cm, update)) { - updateHeightsInViewport(cm); - postUpdateDisplay(cm, update); - var barMeasure = measureForScrollbars(cm); - updateSelection(cm); - updateScrollbars(cm, barMeasure); - setDocumentHeight(cm, barMeasure); - update.finish(); - } - } - - function setDocumentHeight(cm, measure) { - var documentZoom = getDocumentZoom(); - cm.display.sizer.style.minHeight = measure.docHeight / documentZoom + "px"; - cm.display.heightForcer.style.top = measure.docHeight / documentZoom + "px"; - cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) / documentZoom + "px"; - } - - // Read the actual heights of the rendered lines, and update their - // stored heights to match. - function updateHeightsInViewport(cm) { - var display = cm.display; - var prevBottom = display.lineDiv.offsetTop; - for (var i = 0; i < display.view.length; i++) { - var cur = display.view[i], height; - if (cur.hidden) continue; - if (ie && ie_version < 8) { - var bot = cur.node.offsetTop + cur.node.offsetHeight; - height = bot - prevBottom; - prevBottom = bot; - } else { - var box = cur.node.getBoundingClientRect(); - height = box.bottom - box.top; - } - var diff = cur.line.height - height; - if (height < 2) height = textHeight(display); - if (diff > .001 || diff < -.001) { - updateLineHeight(cur.line, height); - updateWidgetHeight(cur.line); - if (cur.rest) for (var j = 0; j < cur.rest.length; j++) - updateWidgetHeight(cur.rest[j]); - } - } - } - - // Read and store the height of line widgets associated with the - // given line. - function updateWidgetHeight(line) { - if (line.widgets) for (var i = 0; i < line.widgets.length; ++i) - line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight; - } - - // Do a bulk-read of the DOM positions and sizes needed to draw the - // view, so that we don't interleave reading and writing to the DOM. - function getDimensions(cm) { - var d = cm.display, left = {}, width = {}; - var gutterLeft = d.gutters.clientLeft; - for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { - left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; - width[cm.options.gutters[i]] = n.clientWidth; - } - return { - fixedPos: compensateForHScroll(d), - gutterTotalWidth: d.gutters.offsetWidth, - gutterLeft: left, - gutterWidth: width, - wrapperWidth: d.wrapper.clientWidth - }; - } - - // Sync the actual display DOM structure with display.view, removing - // nodes for lines that are no longer in view, and creating the ones - // that are not there yet, and updating the ones that are out of - // date. - function patchDisplay(cm, updateNumbersFrom, dims) { - var display = cm.display, lineNumbers = cm.options.lineNumbers; - var container = display.lineDiv, cur = container.firstChild; - - function rm(node) { - var next = node.nextSibling; - // Works around a throw-scroll bug in OS X Webkit - if (webkit && mac && cm.display.currentWheelTarget == node) - node.style.display = "none"; - else - node.parentNode.removeChild(node); - return next; - } - - var view = display.view, lineN = display.viewFrom; - // Loop over the elements in the view, syncing cur (the DOM nodes - // in display.lineDiv) with the view as we go. - for (var i = 0; i < view.length; i++) { - var lineView = view[i]; - if (lineView.hidden) { - } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet - var node = buildLineElement(cm, lineView, lineN, dims); - container.insertBefore(node, cur); - } else { // Already drawn - while (cur != lineView.node) cur = rm(cur); - var updateNumber = lineNumbers && updateNumbersFrom != null && - updateNumbersFrom <= lineN && lineView.lineNumber; - if (lineView.changes) { - if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false; - updateLineForChanges(cm, lineView, lineN, dims); - } - if (updateNumber) { - removeChildren(lineView.lineNumber); - lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); - } - cur = lineView.node.nextSibling; - } - lineN += lineView.size; - } - while (cur) cur = rm(cur); - } - - // When an aspect of a line changes, a string is added to - // lineView.changes. This updates the relevant part of the line's - // DOM structure. - function updateLineForChanges(cm, lineView, lineN, dims) { - for (var j = 0; j < lineView.changes.length; j++) { - var type = lineView.changes[j]; - if (type == "text") updateLineText(cm, lineView); - else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims); - else if (type == "class") updateLineClasses(lineView); - else if (type == "widget") updateLineWidgets(cm, lineView, dims); - } - lineView.changes = null; - } - - // Lines with gutter elements, widgets or a background class need to - // be wrapped, and have the extra elements added to the wrapper div - function ensureLineWrapped(lineView) { - if (lineView.node == lineView.text) { - lineView.node = elt("div", null, null, "position: relative"); - if (lineView.text.parentNode) - lineView.text.parentNode.replaceChild(lineView.node, lineView.text); - lineView.node.appendChild(lineView.text); - if (ie && ie_version < 8) lineView.node.style.zIndex = 2; - } - return lineView.node; - } - - function updateLineBackground(lineView) { - var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; - if (cls) cls += " CodeMirror-linebackground"; - if (lineView.background) { - if (cls) lineView.background.className = cls; - else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } - } else if (cls) { - var wrap = ensureLineWrapped(lineView); - lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); - } - } - - // Wrapper around buildLineContent which will reuse the structure - // in display.externalMeasured when possible. - function getLineContent(cm, lineView) { - var ext = cm.display.externalMeasured; - if (ext && ext.line == lineView.line) { - cm.display.externalMeasured = null; - lineView.measure = ext.measure; - return ext.built; - } - return buildLineContent(cm, lineView); - } - - // Redraw the line's text. Interacts with the background and text - // classes because the mode may output tokens that influence these - // classes. - function updateLineText(cm, lineView) { - var cls = lineView.text.className; - var built = getLineContent(cm, lineView); - if (lineView.text == lineView.node) lineView.node = built.pre; - lineView.text.parentNode.replaceChild(built.pre, lineView.text); - lineView.text = built.pre; - if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { - lineView.bgClass = built.bgClass; - lineView.textClass = built.textClass; - updateLineClasses(lineView); - } else if (cls) { - lineView.text.className = cls; - } - } - - function updateLineClasses(lineView) { - updateLineBackground(lineView); - if (lineView.line.wrapClass) - ensureLineWrapped(lineView).className = lineView.line.wrapClass; - else if (lineView.node != lineView.text) - lineView.node.className = ""; - var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; - lineView.text.className = textClass || ""; - } - - function updateLineGutter(cm, lineView, lineN, dims) { - if (lineView.gutter) { - lineView.node.removeChild(lineView.gutter); - lineView.gutter = null; - } - if (lineView.gutterBackground) { - lineView.node.removeChild(lineView.gutterBackground); - lineView.gutterBackground = null; - } - if (lineView.line.gutterClass) { - var wrap = ensureLineWrapped(lineView); - lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, - "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + - "px; width: " + dims.gutterTotalWidth + "px"); - wrap.insertBefore(lineView.gutterBackground, lineView.text); - } - var markers = lineView.line.gutterMarkers; - if (cm.options.lineNumbers || markers) { - var wrap = ensureLineWrapped(lineView); - var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " + - (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"); - cm.display.input.setUneditable(gutterWrap); - wrap.insertBefore(gutterWrap, lineView.text); - if (lineView.line.gutterClass) - gutterWrap.className += " " + lineView.line.gutterClass; - if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) - lineView.lineNumber = gutterWrap.appendChild( - elt("div", lineNumberFor(cm.options, lineN), - "CodeMirror-linenumber CodeMirror-gutter-elt", - "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: " - + cm.display.lineNumInnerWidth + "px")); - if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) { - var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; - if (found) - gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " + - dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] / + "px")); - } - } - } - - function updateLineWidgets(cm, lineView, dims) { - if (lineView.alignable) lineView.alignable = null; - for (var node = lineView.node.firstChild, next; node; node = next) { - var next = node.nextSibling; - if (node.className == "CodeMirror-linewidget") - lineView.node.removeChild(node); - } - insertLineWidgets(cm, lineView, dims); - } - - // Build a line's DOM representation from scratch - function buildLineElement(cm, lineView, lineN, dims) { - var built = getLineContent(cm, lineView); - lineView.text = lineView.node = built.pre; - if (built.bgClass) lineView.bgClass = built.bgClass; - if (built.textClass) lineView.textClass = built.textClass; - - updateLineClasses(lineView); - updateLineGutter(cm, lineView, lineN, dims); - insertLineWidgets(cm, lineView, dims); - return lineView.node; - } - - // A lineView may contain multiple logical lines (when merged by - // collapsed spans). The widgets for all of them need to be drawn. - function insertLineWidgets(cm, lineView, dims) { - insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); - if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) - insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); - } - - function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { - if (!line.widgets) return; - var wrap = ensureLineWrapped(lineView); - for (var i = 0, ws = line.widgets; i < ws.length; ++i) { - var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); - if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true"); - positionLineWidget(widget, node, lineView, dims); - cm.display.input.setUneditable(node); - if (allowAbove && widget.above) - wrap.insertBefore(node, lineView.gutter || lineView.text); - else - wrap.appendChild(node); - signalLater(widget, "redraw"); - } - } - - function positionLineWidget(widget, node, lineView, dims) { - if (widget.noHScroll) { - (lineView.alignable || (lineView.alignable = [])).push(node); - var width = dims.wrapperWidth; - node.style.left = dims.fixedPos + "px"; - if (!widget.coverGutter) { - width -= dims.gutterTotalWidth; - node.style.paddingLeft = dims.gutterTotalWidth + "px"; - } - node.style.width = width + "px"; - } - if (widget.coverGutter) { - node.style.zIndex = 5; - node.style.position = "relative"; - if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"; - } - } - - // POSITION OBJECT - - // A Pos instance represents a position within the text. - var Pos = CodeMirror.Pos = function (line, ch) { - if (!(this instanceof Pos)) return new Pos(line, ch); - this.line = line; this.ch = ch; - }; - - // Compare two positions, return 0 if they are the same, a negative - // number when a is less, and a positive number otherwise. - var cmp = CodeMirror.cmpPos = function (a, b) { return a.line - b.line || a.ch - b.ch; }; - - function copyPos(x) { return Pos(x.line, x.ch); } - function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; } - function minPos(a, b) { return cmp(a, b) < 0 ? a : b; } - - // INPUT HANDLING - - function ensureFocus(cm) { - if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } - } - - // This will be set to a {lineWise: bool, text: [string]} object, so - // that, when pasting, we know what kind of selections the copied - // text was made out of. - var lastCopied = null; - - function applyTextInput(cm, inserted, deleted, sel, origin) { - var doc = cm.doc; - cm.display.shift = false; - if (!sel) sel = doc.sel; - - var paste = cm.state.pasteIncoming || origin == "paste"; - var textLines = doc.splitLines(inserted), multiPaste = null - // When pasing N lines into N selections, insert one line per selection - if (paste && sel.ranges.length > 1) { - if (lastCopied && lastCopied.text.join("\n") == inserted) { - if (sel.ranges.length % lastCopied.text.length == 0) { - multiPaste = []; - for (var i = 0; i < lastCopied.text.length; i++) - multiPaste.push(doc.splitLines(lastCopied.text[i])); - } - } else if (textLines.length == sel.ranges.length) { - multiPaste = map(textLines, function (l) { return [l]; }); - } - } - - // Normal behavior is to insert the new text into every selection - for (var i = sel.ranges.length - 1; i >= 0; i--) { - var range = sel.ranges[i]; - var from = range.from(), to = range.to(); - if (range.empty()) { - if (deleted && deleted > 0) // Handle deletion - from = Pos(from.line, from.ch - deleted); - else if (cm.state.overwrite && !paste) // Handle overwrite - to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); - else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) - from = to = Pos(from.line, 0) - } - var updateInput = cm.curOp.updateInput; - var changeEvent = { - from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines, - origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input") - }; - makeChange(cm.doc, changeEvent); - signalLater(cm, "inputRead", cm, changeEvent); - } - if (inserted && !paste) - triggerElectric(cm, inserted); - - ensureCursorVisible(cm); - cm.curOp.updateInput = updateInput; - cm.curOp.typing = true; - cm.state.pasteIncoming = cm.state.cutIncoming = false; - } - - function handlePaste(e, cm) { - var pasted = e.clipboardData && e.clipboardData.getData("text/plain"); - if (pasted) { - e.preventDefault(); - if (!cm.isReadOnly() && !cm.options.disableInput) - runInOp(cm, function () { applyTextInput(cm, pasted, 0, null, "paste"); }); - return true; - } - } - - function triggerElectric(cm, inserted) { - // When an 'electric' character is inserted, immediately trigger a reindent - if (!cm.options.electricChars || !cm.options.smartIndent) return; - var sel = cm.doc.sel; - - for (var i = sel.ranges.length - 1; i >= 0; i--) { - var range = sel.ranges[i]; - if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue; - var mode = cm.getModeAt(range.head); - var indented = false; - if (mode.electricChars) { - for (var j = 0; j < mode.electricChars.length; j++) - if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { - indented = indentLine(cm, range.head.line, "smart"); - break; - } - } else if (mode.electricInput) { - if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) + for (var i = sel.ranges.length - 1; i >= 0; i--) { + var range = sel.ranges[i]; + if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue; + var mode = cm.getModeAt(range.head); + var indented = false; + if (mode.electricChars) { + for (var j = 0; j < mode.electricChars.length; j++) + if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { indented = indentLine(cm, range.head.line, "smart"); - } - if (indented) signalLater(cm, "electricInput", cm, range.head.line); - } - } - - function copyableRanges(cm) { - var text = [], ranges = []; - for (var i = 0; i < cm.doc.sel.ranges.length; i++) { - var line = cm.doc.sel.ranges[i].head.line; - var lineRange = { anchor: Pos(line, 0), head: Pos(line + 1, 0) }; - ranges.push(lineRange); - text.push(cm.getRange(lineRange.anchor, lineRange.head)); - } - return { text: text, ranges: ranges }; - } - - function disableBrowserMagic(field) { - field.setAttribute("autocorrect", "off"); - field.setAttribute("autocapitalize", "off"); - field.setAttribute("spellcheck", "false"); - } - - // TEXTAREA INPUT STYLE - - function TextareaInput(cm) { - this.cm = cm; - // See input.poll and input.reset - this.prevInput = ""; - - // Flag that indicates whether we expect input to appear real soon - // now (after some event like 'keypress' or 'input') and are - // polling intensively. - this.pollingFast = false; - // Self-resetting timeout for the poller - this.polling = new Delayed(); - // Tracks when input.reset has punted to just putting a short - // string into the textarea instead of the full selection. - this.inaccurateSelection = false; - // Used to work around IE issue with selection being forgotten when focus moves away from textarea - this.hasSelection = false; - this.composing = null; - }; - - function hiddenTextarea() { - var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); - var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); - // The textarea is kept positioned near the cursor to prevent the - // fact that it'll be scrolled into view on input from scrolling - // our fake cursor out of view. On webkit, when wrap=off, paste is - // very slow. So make the area wide instead. - if (webkit) te.style.width = "1000px"; - else te.setAttribute("wrap", "off"); - // If border: 0; -- iOS fails to open keyboard (issue #1287) - if (ios) te.style.border = "1px solid black"; - disableBrowserMagic(te); - return div; - } - - TextareaInput.prototype = copyObj({ - init: function (display) { - var input = this, cm = this.cm; - - // Wraps and hides input textarea - var div = this.wrapper = hiddenTextarea(); - // The semihidden textarea that is focused when the editor is - // focused, and receives input. - var te = this.textarea = div.firstChild; - display.wrapper.insertBefore(div, display.wrapper.firstChild); - - // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) - if (ios) te.style.width = "0px"; - - on(te, "input", function () { - if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null; - input.poll(); - }); - - on(te, "paste", function (e) { - if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return - - cm.state.pasteIncoming = true; - input.fastPoll(); - }); - - function prepareCopyCut(e) { - if (signalDOMEvent(cm, e)) return - if (cm.somethingSelected()) { - lastCopied = { lineWise: false, text: cm.getSelections() }; - if (input.inaccurateSelection) { - input.prevInput = ""; - input.inaccurateSelection = false; - te.value = lastCopied.text.join("\n"); - selectInput(te); - } - } else if (!cm.options.lineWiseCopyCut) { - return; - } else { - var ranges = copyableRanges(cm); - lastCopied = { lineWise: true, text: ranges.text }; - if (e.type == "cut") { - cm.setSelections(ranges.ranges, null, sel_dontScroll); - } else { - input.prevInput = ""; - te.value = ranges.text.join("\n"); - selectInput(te); - } + break; } - if (e.type == "cut") cm.state.cutIncoming = true; - } - on(te, "cut", prepareCopyCut); - on(te, "copy", prepareCopyCut); + } else if (mode.electricInput) { + if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) + indented = indentLine(cm, range.head.line, "smart"); + } + if (indented) signalLater(cm, "electricInput", cm, range.head.line); + } + } - on(display.scroller, "paste", function (e) { - if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return; - cm.state.pasteIncoming = true; - input.focus(); - }); + function copyableRanges(cm) { + var text = [], ranges = []; + for (var i = 0; i < cm.doc.sel.ranges.length; i++) { + var line = cm.doc.sel.ranges[i].head.line; + var lineRange = { anchor: Pos(line, 0), head: Pos(line + 1, 0) }; + ranges.push(lineRange); + text.push(cm.getRange(lineRange.anchor, lineRange.head)); + } + return { text: text, ranges: ranges }; + } - // Prevent normal selection in the editor (we handle our own) - on(display.lineSpace, "selectstart", function (e) { - if (!eventInWidget(display, e)) e_preventDefault(e); - }); + function disableBrowserMagic(field) { + field.setAttribute("autocorrect", "off"); + field.setAttribute("autocapitalize", "off"); + field.setAttribute("spellcheck", "false"); + } - on(te, "compositionstart", function () { - var start = cm.getCursor("from"); - if (input.composing) input.composing.range.clear() - input.composing = { - start: start, - range: cm.markText(start, cm.getCursor("to"), { className: "CodeMirror-composing" }) - }; - }); - on(te, "compositionend", function () { - if (input.composing) { - input.poll(); - input.composing.range.clear(); - input.composing = null; - } - }); - }, + // TEXTAREA INPUT STYLE - prepareSelection: function () { - // Redraw the selection and/or cursor - var cm = this.cm, display = cm.display, doc = cm.doc; - var result = prepareSelection(cm); + function TextareaInput(cm) { + this.cm = cm; + // See input.poll and input.reset + this.prevInput = ""; - // Move the hidden textarea near the cursor to prevent scrolling artifacts - if (cm.options.moveInputWithCursor) { - var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); - var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); - result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, - headPos.top + lineOff.top - wrapOff.top)); - result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, - headPos.left + lineOff.left - wrapOff.left)); - } + // Flag that indicates whether we expect input to appear real soon + // now (after some event like 'keypress' or 'input') and are + // polling intensively. + this.pollingFast = false; + // Self-resetting timeout for the poller + this.polling = new Delayed(); + // Tracks when input.reset has punted to just putting a short + // string into the textarea instead of the full selection. + this.inaccurateSelection = false; + // Used to work around IE issue with selection being forgotten when focus moves away from textarea + this.hasSelection = false; + this.composing = null; + }; - return result; - }, + function hiddenTextarea() { + var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); + var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); + // The textarea is kept positioned near the cursor to prevent the + // fact that it'll be scrolled into view on input from scrolling + // our fake cursor out of view. On webkit, when wrap=off, paste is + // very slow. So make the area wide instead. + if (webkit) te.style.width = "1000px"; + else te.setAttribute("wrap", "off"); + // If border: 0; -- iOS fails to open keyboard (issue #1287) + if (ios) te.style.border = "1px solid black"; + disableBrowserMagic(te); + return div; + } - showSelection: function (drawn) { - var cm = this.cm, display = cm.display; - removeChildrenAndAdd(display.cursorDiv, drawn.cursors); - removeChildrenAndAdd(display.selectionDiv, drawn.selection); - if (drawn.teTop != null) { - this.wrapper.style.top = drawn.teTop + "px"; - this.wrapper.style.left = drawn.teLeft + "px"; - } - }, + TextareaInput.prototype = copyObj({ + init: function (display) { + var input = this, cm = this.cm; - // Reset the input to correspond to the selection (or to be empty, - // when not typing and nothing is selected) - reset: function (typing) { - if (this.contextMenuPending) return; - var minimal, selected, cm = this.cm, doc = cm.doc; + // Wraps and hides input textarea + var div = this.wrapper = hiddenTextarea(); + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + var te = this.textarea = div.firstChild; + display.wrapper.insertBefore(div, display.wrapper.firstChild); + + // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) + if (ios) te.style.width = "0px"; + + on(te, "input", function () { + if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null; + input.poll(); + }); + + on(te, "paste", function (e) { + if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return + + cm.state.pasteIncoming = true; + input.fastPoll(); + }); + + function prepareCopyCut(e) { + if (signalDOMEvent(cm, e)) return if (cm.somethingSelected()) { - this.prevInput = ""; - var range = doc.sel.primary(); - minimal = hasCopyEvent && - (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); - var content = minimal ? "-" : selected || cm.getSelection(); - this.textarea.value = content; - if (cm.state.focused) selectInput(this.textarea); - if (ie && ie_version >= 9) this.hasSelection = content; - } else if (!typing) { - this.prevInput = this.textarea.value = ""; - if (ie && ie_version >= 9) this.hasSelection = null; - } - this.inaccurateSelection = minimal; - }, - - getField: function () { return this.textarea; }, - - supportsTouch: function () { return false; }, - - focus: function () { - if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { - try { this.textarea.focus(); } - catch (e) { } // IE8 will throw if the textarea is display: none or not in DOM - } - }, - - blur: function () { this.textarea.blur(); }, - - resetPosition: function () { - this.wrapper.style.top = this.wrapper.style.left = 0; - }, - - receivedFocus: function () { this.slowPoll(); }, - - // Poll for input changes, using the normal rate of polling. This - // runs as long as the editor is focused. - slowPoll: function () { - var input = this; - if (input.pollingFast) return; - input.polling.set(this.cm.options.pollInterval, function () { - input.poll(); - if (input.cm.state.focused) input.slowPoll(); - }); - }, - - // When an event has just come in that is likely to add or change - // something in the input textarea, we poll faster, to ensure that - // the change appears on the screen quickly. - fastPoll: function () { - var missed = false, input = this; - input.pollingFast = true; - function p() { - var changed = input.poll(); - if (!changed && !missed) { missed = true; input.polling.set(60, p); } - else { input.pollingFast = false; input.slowPoll(); } - } - input.polling.set(20, p); - }, - - // Read input from the textarea, and update the document to match. - // When something is selected, it is present in the textarea, and - // selected (unless it is huge, in which case a placeholder is - // used). When nothing is selected, the cursor sits after previously - // seen text (can be empty), which is stored in prevInput (we must - // not reset the textarea when typing, because that breaks IME). - poll: function () { - var cm = this.cm, input = this.textarea, prevInput = this.prevInput; - // Since this is called a *lot*, try to bail out as cheaply as - // possible when it is clear that nothing happened. hasSelection - // will be the case when there is a lot of text in the textarea, - // in which case reading its value would be expensive. - if (this.contextMenuPending || !cm.state.focused || - (hasSelection(input) && !prevInput && !this.composing) || - cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) - return false; - - var text = input.value; - // If nothing changed, bail. - if (text == prevInput && !cm.somethingSelected()) return false; - // Work around nonsensical selection resetting in IE9/10, and - // inexplicable appearance of private area unicode characters on - // some key combos in Mac (#2689). - if (ie && ie_version >= 9 && this.hasSelection === text || - mac && /[\uf700-\uf7ff]/.test(text)) { - cm.display.input.reset(); - return false; - } - - if (cm.doc.sel == cm.display.selForContextMenu) { - var first = text.charCodeAt(0); - if (first == 0x200b && !prevInput) prevInput = "\u200b"; - if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); } - } - // Find the part of the input that is actually new - var same = 0, l = Math.min(prevInput.length, text.length); - while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; - - var self = this; - runInOp(cm, function () { - applyTextInput(cm, text.slice(same), prevInput.length - same, - null, self.composing ? "*compose" : null); - - // Don't leave long text in the textarea, since it makes further polling slow - if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = ""; - else self.prevInput = text; - - if (self.composing) { - self.composing.range.clear(); - self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"), - { className: "CodeMirror-composing" }); - } - }); - return true; - }, - - ensurePolled: function () { - if (this.pollingFast && this.poll()) this.pollingFast = false; - }, - - onKeyPress: function () { - if (ie && ie_version >= 9) this.hasSelection = null; - this.fastPoll(); - }, - - onContextMenu: function (e) { - var input = this, cm = input.cm, display = cm.display, te = input.textarea; - var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; - if (!pos || presto) return; // Opera is difficult. - - // Reset the current text selection only if the click is done outside of the selection - // and 'resetSelectionOnContextMenu' option is true. - var reset = cm.options.resetSelectionOnContextMenu; - if (reset && cm.doc.sel.contains(pos) == -1) - operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); - - var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; - input.wrapper.style.cssText = "position: absolute" - var wrapperBox = input.wrapper.getBoundingClientRect() - te.style.cssText = "position: absolute; width: 30px; height: 30px; top: " + (e.clientY - wrapperBox.top - 5) + - "px; left: " + (e.clientX - wrapperBox.left - 5) + "px; z-index: 1000; background: " + - (ie ? "rgba(255, 255, 255, .05)" : "transparent") + - "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; - if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712) - display.input.focus(); - if (webkit) window.scrollTo(null, oldScrollY); - display.input.reset(); - // Adds "Select all" to context menu in FF - if (!cm.somethingSelected()) te.value = input.prevInput = " "; - input.contextMenuPending = true; - display.selForContextMenu = cm.doc.sel; - clearTimeout(display.detectingSelectAll); - - // Select-all will be greyed out if there's nothing to select, so - // this adds a zero-width space so that we can later check whether - // it got selected. - function prepareSelectAllHack() { - if (te.selectionStart != null) { - var selected = cm.somethingSelected(); - var extval = "\u200b" + (selected ? te.value : ""); - te.value = "\u21da"; // Used to catch context-menu undo - te.value = extval; - input.prevInput = selected ? "" : "\u200b"; - te.selectionStart = 1; te.selectionEnd = extval.length; - // Re-set this, in case some other handler touched the - // selection in the meantime. - display.selForContextMenu = cm.doc.sel; - } - } - function rehide() { - input.contextMenuPending = false; - input.wrapper.style.cssText = oldWrapperCSS - te.style.cssText = oldCSS; - if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); - - // Try to detect the user choosing select-all - if (te.selectionStart != null) { - if (!ie || (ie && ie_version < 9)) prepareSelectAllHack(); - var i = 0, poll = function () { - if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && - te.selectionEnd > 0 && input.prevInput == "\u200b") - operation(cm, commands.selectAll)(cm); - else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500); - else display.input.reset(); - }; - display.detectingSelectAll = setTimeout(poll, 200); - } - } - - if (ie && ie_version >= 9) prepareSelectAllHack(); - if (captureRightClick) { - e_stop(e); - var mouseup = function () { - off(window, "mouseup", mouseup); - setTimeout(rehide, 20); - }; - on(window, "mouseup", mouseup); - } else { - setTimeout(rehide, 50); - } - }, - - readOnlyChanged: function (val) { - if (!val) this.reset(); - }, - - setUneditable: nothing, - - needsContentAttribute: false - }, TextareaInput.prototype); - - // CONTENTEDITABLE INPUT STYLE - - function ContentEditableInput(cm) { - this.cm = cm; - this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; - this.polling = new Delayed(); - this.gracePeriod = false; - } - - ContentEditableInput.prototype = copyObj({ - init: function (display) { - var input = this, cm = input.cm; - var div = input.div = display.lineDiv; - disableBrowserMagic(div); - - on(div, "paste", function (e) { - if (!signalDOMEvent(cm, e)) handlePaste(e, cm); - }) - - on(div, "compositionstart", function (e) { - var data = e.data; - input.composing = { sel: cm.doc.sel, data: data, startData: data }; - if (!data) return; - var prim = cm.doc.sel.primary(); - var line = cm.getLine(prim.head.line); - var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length)); - if (found > -1 && found <= prim.head.ch) - input.composing.sel = simpleSelection(Pos(prim.head.line, found), - Pos(prim.head.line, found + data.length)); - }); - on(div, "compositionupdate", function (e) { - input.composing.data = e.data; - }); - on(div, "compositionend", function (e) { - var ours = input.composing; - if (!ours) return; - if (e.data != ours.startData && !/\u200b/.test(e.data)) - ours.data = e.data; - // Need a small delay to prevent other code (input event, - // selection polling) from doing damage when fired right after - // compositionend. - setTimeout(function () { - if (!ours.handled) - input.applyComposition(ours); - if (input.composing == ours) - input.composing = null; - }, 50); - }); - - on(div, "touchstart", function () { - input.forceCompositionEnd(); - }); - - on(div, "input", function () { - if (input.composing) return; - if (cm.isReadOnly() || !input.pollContent()) - runInOp(input.cm, function () { regChange(cm); }); - }); - - function onCopyCut(e) { - if (signalDOMEvent(cm, e)) return - if (cm.somethingSelected()) { - lastCopied = { lineWise: false, text: cm.getSelections() }; - if (e.type == "cut") cm.replaceSelection("", null, "cut"); - } else if (!cm.options.lineWiseCopyCut) { - return; - } else { - var ranges = copyableRanges(cm); - lastCopied = { lineWise: true, text: ranges.text }; - if (e.type == "cut") { - cm.operation(function () { - cm.setSelections(ranges.ranges, 0, sel_dontScroll); - cm.replaceSelection("", null, "cut"); - }); - } - } - // iOS exposes the clipboard API, but seems to discard content inserted into it - if (e.clipboardData && !ios) { - e.preventDefault(); - e.clipboardData.clearData(); - e.clipboardData.setData("text/plain", lastCopied.text.join("\n")); - } else { - // Old-fashioned briefly-focus-a-textarea hack - var kludge = hiddenTextarea(), te = kludge.firstChild; - cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); + lastCopied = { lineWise: false, text: cm.getSelections() }; + if (input.inaccurateSelection) { + input.prevInput = ""; + input.inaccurateSelection = false; te.value = lastCopied.text.join("\n"); - var hadFocus = document.activeElement; selectInput(te); - setTimeout(function () { - cm.display.lineSpace.removeChild(kludge); - hadFocus.focus(); - }, 50); } - } - on(div, "copy", onCopyCut); - on(div, "cut", onCopyCut); - }, - - prepareSelection: function () { - var result = prepareSelection(this.cm, false); - result.focus = this.cm.state.focused; - return result; - }, - - showSelection: function (info, takeFocus) { - if (!info || !this.cm.display.view.length) return; - if (info.focus || takeFocus) this.showPrimarySelection(); - this.showMultipleSelections(info); - }, - - showPrimarySelection: function () { - var sel = window.getSelection(), prim = this.cm.doc.sel.primary(); - var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset); - var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset); - if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && - cmp(minPos(curAnchor, curFocus), prim.from()) == 0 && - cmp(maxPos(curAnchor, curFocus), prim.to()) == 0) + } else if (!cm.options.lineWiseCopyCut) { return; - - var start = posToDOM(this.cm, prim.from()); - var end = posToDOM(this.cm, prim.to()); - if (!start && !end) return; - - var view = this.cm.display.view; - var old = sel.rangeCount && sel.getRangeAt(0); - if (!start) { - start = { node: view[0].measure.map[2], offset: 0 }; - } else if (!end) { // FIXME dangerously hacky - var measure = view[view.length - 1].measure; - var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; - end = { node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3] }; - } - - try { var rng = range(start.node, start.offset, end.offset, end.node); } - catch (e) { } // Our model of the DOM might be outdated, in which case the range we try to set can be impossible - if (rng) { - if (!gecko && this.cm.state.focused) { - sel.collapse(start.node, start.offset); - if (!rng.collapsed) sel.addRange(rng); + } else { + var ranges = copyableRanges(cm); + lastCopied = { lineWise: true, text: ranges.text }; + if (e.type == "cut") { + cm.setSelections(ranges.ranges, null, sel_dontScroll); } else { - sel.removeAllRanges(); - sel.addRange(rng); - } - if (old && sel.anchorNode == null) sel.addRange(old); - else if (gecko) this.startGracePeriod(); - } - this.rememberSelection(); - }, - - startGracePeriod: function () { - var input = this; - clearTimeout(this.gracePeriod); - this.gracePeriod = setTimeout(function () { - input.gracePeriod = false; - if (input.selectionChanged()) - input.cm.operation(function () { input.cm.curOp.selectionChanged = true; }); - }, 20); - }, - - showMultipleSelections: function (info) { - removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); - removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); - }, - - rememberSelection: function () { - var sel = window.getSelection(); - this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; - this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; - }, - - selectionInEditor: function () { - var sel = window.getSelection(); - if (!sel.rangeCount) return false; - var node = sel.getRangeAt(0).commonAncestorContainer; - return contains(this.div, node); - }, - - focus: function () { - if (this.cm.options.readOnly != "nocursor") this.div.focus(); - }, - blur: function () { this.div.blur(); }, - getField: function () { return this.div; }, - - supportsTouch: function () { return true; }, - - receivedFocus: function () { - var input = this; - if (this.selectionInEditor()) - this.pollSelection(); - else - runInOp(this.cm, function () { input.cm.curOp.selectionChanged = true; }); - - function poll() { - if (input.cm.state.focused) { - input.pollSelection(); - input.polling.set(input.cm.options.pollInterval, poll); + input.prevInput = ""; + te.value = ranges.text.join("\n"); + selectInput(te); } } - this.polling.set(this.cm.options.pollInterval, poll); - }, - - selectionChanged: function () { - var sel = window.getSelection(); - return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || - sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset; - }, - - pollSelection: function () { - if (!this.composing && !this.gracePeriod && this.selectionChanged()) { - var sel = window.getSelection(), cm = this.cm; - this.rememberSelection(); - var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); - var head = domToPos(cm, sel.focusNode, sel.focusOffset); - if (anchor && head) runInOp(cm, function () { - setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); - if (anchor.bad || head.bad) cm.curOp.selectionChanged = true; - }); - } - }, - - pollContent: function () { - var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); - var from = sel.from(), to = sel.to(); - if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false; - - var fromIndex; - if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { - var fromLine = lineNo(display.view[0].line); - var fromNode = display.view[0].node; - } else { - var fromLine = lineNo(display.view[fromIndex].line); - var fromNode = display.view[fromIndex - 1].node.nextSibling; - } - var toIndex = findViewIndex(cm, to.line); - if (toIndex == display.view.length - 1) { - var toLine = display.viewTo - 1; - var toNode = display.lineDiv.lastChild; - } else { - var toLine = lineNo(display.view[toIndex + 1].line) - 1; - var toNode = display.view[toIndex + 1].node.previousSibling; - } - - var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); - var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); - while (newText.length > 1 && oldText.length > 1) { - if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } - else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } - else break; - } - - var cutFront = 0, cutEnd = 0; - var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); - while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) - ++cutFront; - var newBot = lst(newText), oldBot = lst(oldText); - var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), - oldBot.length - (oldText.length == 1 ? cutFront : 0)); - while (cutEnd < maxCutEnd && - newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) - ++cutEnd; - - newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd); - newText[0] = newText[0].slice(cutFront); - - var chFrom = Pos(fromLine, cutFront); - var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); - if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { - replaceRange(cm.doc, newText, chFrom, chTo, "+input"); - return true; - } - }, - - ensurePolled: function () { - this.forceCompositionEnd(); - }, - reset: function () { - this.forceCompositionEnd(); - }, - forceCompositionEnd: function () { - if (!this.composing || this.composing.handled) return; - this.applyComposition(this.composing); - this.composing.handled = true; - this.div.blur(); - this.div.focus(); - }, - applyComposition: function (composing) { - if (this.cm.isReadOnly()) - operation(this.cm, regChange)(this.cm) - else if (composing.data && composing.data != composing.startData) - operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel); - }, - - setUneditable: function (node) { - node.contentEditable = "false" - }, - - onKeyPress: function (e) { - e.preventDefault(); - if (!this.cm.isReadOnly()) - operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); - }, - - readOnlyChanged: function (val) { - this.div.contentEditable = String(val != "nocursor") - }, - - onContextMenu: nothing, - resetPosition: nothing, - - needsContentAttribute: true - }, ContentEditableInput.prototype); - - function posToDOM(cm, pos) { - var view = findViewForLine(cm, pos.line); - if (!view || view.hidden) return null; - var line = getLine(cm.doc, pos.line); - var info = mapFromLineView(view, line, pos.line); - - var order = getOrder(line), side = "left"; - if (order) { - var partPos = getBidiPartAt(order, pos.ch); - side = partPos % 2 ? "right" : "left"; + if (e.type == "cut") cm.state.cutIncoming = true; } - var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); - result.offset = result.collapse == "right" ? result.end : result.start; + on(te, "cut", prepareCopyCut); + on(te, "copy", prepareCopyCut); + + on(display.scroller, "paste", function (e) { + if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return; + cm.state.pasteIncoming = true; + input.focus(); + }); + + // Prevent normal selection in the editor (we handle our own) + on(display.lineSpace, "selectstart", function (e) { + if (!eventInWidget(display, e)) e_preventDefault(e); + }); + + on(te, "compositionstart", function () { + var start = cm.getCursor("from"); + if (input.composing) input.composing.range.clear() + input.composing = { + start: start, + range: cm.markText(start, cm.getCursor("to"), { className: "CodeMirror-composing" }) + }; + }); + on(te, "compositionend", function () { + if (input.composing) { + input.poll(); + input.composing.range.clear(); + input.composing = null; + } + }); + }, + + prepareSelection: function () { + // Redraw the selection and/or cursor + var cm = this.cm, display = cm.display, doc = cm.doc; + var result = prepareSelection(cm); + + // Move the hidden textarea near the cursor to prevent scrolling artifacts + if (cm.options.moveInputWithCursor) { + var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); + result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, + headPos.top + lineOff.top - wrapOff.top)); + result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, + headPos.left + lineOff.left - wrapOff.left)); + } + return result; - } + }, - function badPos(pos, bad) { if (bad) pos.bad = true; return pos; } - - function domToPos(cm, node, offset) { - var lineNode; - if (node == cm.display.lineDiv) { - lineNode = cm.display.lineDiv.childNodes[offset]; - if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true); - node = null; offset = 0; - } else { - for (lineNode = node; ; lineNode = lineNode.parentNode) { - if (!lineNode || lineNode == cm.display.lineDiv) return null; - if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break; - } + showSelection: function (drawn) { + var cm = this.cm, display = cm.display; + removeChildrenAndAdd(display.cursorDiv, drawn.cursors); + removeChildrenAndAdd(display.selectionDiv, drawn.selection); + if (drawn.teTop != null) { + this.wrapper.style.top = drawn.teTop + "px"; + this.wrapper.style.left = drawn.teLeft + "px"; } - for (var i = 0; i < cm.display.view.length; i++) { - var lineView = cm.display.view[i]; - if (lineView.node == lineNode) - return locateNodeInLineView(lineView, node, offset); + }, + + // Reset the input to correspond to the selection (or to be empty, + // when not typing and nothing is selected) + reset: function (typing) { + if (this.contextMenuPending) return; + var minimal, selected, cm = this.cm, doc = cm.doc; + if (cm.somethingSelected()) { + this.prevInput = ""; + var range = doc.sel.primary(); + minimal = hasCopyEvent && + (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000); + var content = minimal ? "-" : selected || cm.getSelection(); + this.textarea.value = content; + if (cm.state.focused) selectInput(this.textarea); + if (ie && ie_version >= 9) this.hasSelection = content; + } else if (!typing) { + this.prevInput = this.textarea.value = ""; + if (ie && ie_version >= 9) this.hasSelection = null; } - } + this.inaccurateSelection = minimal; + }, - function locateNodeInLineView(lineView, node, offset) { - var wrapper = lineView.text.firstChild, bad = false; - if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true); - if (node == wrapper) { - bad = true; - node = wrapper.childNodes[offset]; - offset = 0; - if (!node) { - var line = lineView.rest ? lst(lineView.rest) : lineView.line; - return badPos(Pos(lineNo(line), line.text.length), bad); - } + getField: function () { return this.textarea; }, + + supportsTouch: function () { return false; }, + + focus: function () { + if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { + try { this.textarea.focus(); } + catch (e) { } // IE8 will throw if the textarea is display: none or not in DOM } + }, - var textNode = node.nodeType == 3 ? node : null, topNode = node; - if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { - textNode = node.firstChild; - if (offset) offset = textNode.nodeValue.length; + blur: function () { this.textarea.blur(); }, + + resetPosition: function () { + this.wrapper.style.top = this.wrapper.style.left = 0; + }, + + receivedFocus: function () { this.slowPoll(); }, + + // Poll for input changes, using the normal rate of polling. This + // runs as long as the editor is focused. + slowPoll: function () { + var input = this; + if (input.pollingFast) return; + input.polling.set(this.cm.options.pollInterval, function () { + input.poll(); + if (input.cm.state.focused) input.slowPoll(); + }); + }, + + // When an event has just come in that is likely to add or change + // something in the input textarea, we poll faster, to ensure that + // the change appears on the screen quickly. + fastPoll: function () { + var missed = false, input = this; + input.pollingFast = true; + function p() { + var changed = input.poll(); + if (!changed && !missed) { missed = true; input.polling.set(60, p); } + else { input.pollingFast = false; input.slowPoll(); } } - while (topNode.parentNode != wrapper) topNode = topNode.parentNode; - var measure = lineView.measure, maps = measure.maps; + input.polling.set(20, p); + }, - function find(textNode, topNode, offset) { - for (var i = -1; i < (maps ? maps.length : 0); i++) { - var map = i < 0 ? measure.map : maps[i]; - for (var j = 0; j < map.length; j += 3) { - var curNode = map[j + 2]; - if (curNode == textNode || curNode == topNode) { - var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); - var ch = map[j] + offset; - if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)]; - return Pos(line, ch); - } - } - } - } - var found = find(textNode, topNode, offset); - if (found) return badPos(found, bad); - - // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems - for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { - found = find(after, after.firstChild, 0); - if (found) - return badPos(Pos(found.line, found.ch - dist), bad); - else - dist += after.textContent.length; - } - for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) { - found = find(before, before.firstChild, -1); - if (found) - return badPos(Pos(found.line, found.ch + dist), bad); - else - dist += after.textContent.length; - } - } - - function domTextBetween(cm, from, to, fromLine, toLine) { - var text = "", closing = false, lineSep = cm.doc.lineSeparator(); - function recognizeMarker(id) { return function (marker) { return marker.id == id; }; } - function walk(node) { - if (node.nodeType == 1) { - var cmText = node.getAttribute("cm-text"); - if (cmText != null) { - if (cmText == "") cmText = node.textContent.replace(/\u200b/g, ""); - text += cmText; - return; - } - var markerID = node.getAttribute("cm-marker"), range; - if (markerID) { - var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); - if (found.length && (range = found[0].find())) - text += getBetween(cm.doc, range.from, range.to).join(lineSep); - return; - } - if (node.getAttribute("contenteditable") == "false") return; - for (var i = 0; i < node.childNodes.length; i++) - walk(node.childNodes[i]); - if (/^(pre|div|p)$/i.test(node.nodeName)) - closing = true; - } else if (node.nodeType == 3) { - var val = node.nodeValue; - if (!val) return; - if (closing) { - text += lineSep; - closing = false; - } - text += val; - } - } - for (; ;) { - walk(from); - if (from == to) break; - from = from.nextSibling; - } - return text; - } - - CodeMirror.inputStyles = { "textarea": TextareaInput, "contenteditable": ContentEditableInput }; - - // SELECTION / CURSOR - - // Selection objects are immutable. A new one is created every time - // the selection changes. A selection is one or more non-overlapping - // (and non-touching) ranges, sorted, and an integer that indicates - // which one is the primary selection (the one that's scrolled into - // view, that getCursor returns, etc). - function Selection(ranges, primIndex) { - this.ranges = ranges; - this.primIndex = primIndex; - } - - Selection.prototype = { - primary: function () { return this.ranges[this.primIndex]; }, - equals: function (other) { - if (other == this) return true; - if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false; - for (var i = 0; i < this.ranges.length; i++) { - var here = this.ranges[i], there = other.ranges[i]; - if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; - } - return true; - }, - deepCopy: function () { - for (var out = [], i = 0; i < this.ranges.length; i++) - out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); - return new Selection(out, this.primIndex); - }, - somethingSelected: function () { - for (var i = 0; i < this.ranges.length; i++) - if (!this.ranges[i].empty()) return true; + // Read input from the textarea, and update the document to match. + // When something is selected, it is present in the textarea, and + // selected (unless it is huge, in which case a placeholder is + // used). When nothing is selected, the cursor sits after previously + // seen text (can be empty), which is stored in prevInput (we must + // not reset the textarea when typing, because that breaks IME). + poll: function () { + var cm = this.cm, input = this.textarea, prevInput = this.prevInput; + // Since this is called a *lot*, try to bail out as cheaply as + // possible when it is clear that nothing happened. hasSelection + // will be the case when there is a lot of text in the textarea, + // in which case reading its value would be expensive. + if (this.contextMenuPending || !cm.state.focused || + (hasSelection(input) && !prevInput && !this.composing) || + cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) return false; - }, - contains: function (pos, end) { - if (!end) end = pos; - for (var i = 0; i < this.ranges.length; i++) { - var range = this.ranges[i]; - if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) - return i; + + var text = input.value; + // If nothing changed, bail. + if (text == prevInput && !cm.somethingSelected()) return false; + // Work around nonsensical selection resetting in IE9/10, and + // inexplicable appearance of private area unicode characters on + // some key combos in Mac (#2689). + if (ie && ie_version >= 9 && this.hasSelection === text || + mac && /[\uf700-\uf7ff]/.test(text)) { + cm.display.input.reset(); + return false; + } + + if (cm.doc.sel == cm.display.selForContextMenu) { + var first = text.charCodeAt(0); + if (first == 0x200b && !prevInput) prevInput = "\u200b"; + if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); } + } + // Find the part of the input that is actually new + var same = 0, l = Math.min(prevInput.length, text.length); + while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same; + + var self = this; + runInOp(cm, function () { + applyTextInput(cm, text.slice(same), prevInput.length - same, + null, self.composing ? "*compose" : null); + + // Don't leave long text in the textarea, since it makes further polling slow + if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = ""; + else self.prevInput = text; + + if (self.composing) { + self.composing.range.clear(); + self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"), + { className: "CodeMirror-composing" }); } - return -1; - } - }; + }); + return true; + }, - function Range(anchor, head) { - this.anchor = anchor; this.head = head; - } + ensurePolled: function () { + if (this.pollingFast && this.poll()) this.pollingFast = false; + }, - Range.prototype = { - from: function () { return minPos(this.anchor, this.head); }, - to: function () { return maxPos(this.anchor, this.head); }, - empty: function () { - return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch; - } - }; + onKeyPress: function () { + if (ie && ie_version >= 9) this.hasSelection = null; + this.fastPoll(); + }, - // Take an unsorted, potentially overlapping set of ranges, and - // build a selection out of it. 'Consumes' ranges array (modifying - // it). - function normalizeSelection(ranges, primIndex) { - var prim = ranges[primIndex]; - ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); - primIndex = indexOf(ranges, prim); - for (var i = 1; i < ranges.length; i++) { - var cur = ranges[i], prev = ranges[i - 1]; - if (cmp(prev.to(), cur.from()) >= 0) { - var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); - var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; - if (i <= primIndex) --primIndex; - ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); + onContextMenu: function (e) { + var input = this, cm = input.cm, display = cm.display, te = input.textarea; + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; + if (!pos || presto) return; // Opera is difficult. + + // Reset the current text selection only if the click is done outside of the selection + // and 'resetSelectionOnContextMenu' option is true. + var reset = cm.options.resetSelectionOnContextMenu; + if (reset && cm.doc.sel.contains(pos) == -1) + operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); + + var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; + input.wrapper.style.cssText = "position: absolute" + var wrapperBox = input.wrapper.getBoundingClientRect() + te.style.cssText = "position: absolute; width: 30px; height: 30px; top: " + (e.clientY - wrapperBox.top - 5) + + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px; z-index: 1000; background: " + + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + + "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; + if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712) + display.input.focus(); + if (webkit) window.scrollTo(null, oldScrollY); + display.input.reset(); + // Adds "Select all" to context menu in FF + if (!cm.somethingSelected()) te.value = input.prevInput = " "; + input.contextMenuPending = true; + display.selForContextMenu = cm.doc.sel; + clearTimeout(display.detectingSelectAll); + + // Select-all will be greyed out if there's nothing to select, so + // this adds a zero-width space so that we can later check whether + // it got selected. + function prepareSelectAllHack() { + if (te.selectionStart != null) { + var selected = cm.somethingSelected(); + var extval = "\u200b" + (selected ? te.value : ""); + te.value = "\u21da"; // Used to catch context-menu undo + te.value = extval; + input.prevInput = selected ? "" : "\u200b"; + te.selectionStart = 1; te.selectionEnd = extval.length; + // Re-set this, in case some other handler touched the + // selection in the meantime. + display.selForContextMenu = cm.doc.sel; } } - return new Selection(ranges, primIndex); - } + function rehide() { + input.contextMenuPending = false; + input.wrapper.style.cssText = oldWrapperCSS + te.style.cssText = oldCSS; + if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); - function simpleSelection(anchor, head) { - return new Selection([new Range(anchor, head || anchor)], 0); - } + // Try to detect the user choosing select-all + if (te.selectionStart != null) { + if (!ie || (ie && ie_version < 9)) prepareSelectAllHack(); + var i = 0, poll = function () { + if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && + te.selectionEnd > 0 && input.prevInput == "\u200b") + operation(cm, commands.selectAll)(cm); + else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500); + else display.input.reset(); + }; + display.detectingSelectAll = setTimeout(poll, 200); + } + } - // Most of the external API clips given positions to make sure they - // actually exist within the document. - function clipLine(doc, n) { return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1)); } - function clipPos(doc, pos) { - if (pos.line < doc.first) return Pos(doc.first, 0); - var last = doc.first + doc.size - 1; - if (pos.line > last) return Pos(last, getLine(doc, last).text.length); - return clipToLen(pos, getLine(doc, pos.line).text.length); - } - function clipToLen(pos, linelen) { - var ch = pos.ch; - if (ch == null || ch > linelen) return Pos(pos.line, linelen); - else if (ch < 0) return Pos(pos.line, 0); - else return pos; - } - function isLine(doc, l) { return l >= doc.first && l < doc.first + doc.size; } - function clipPosArray(doc, array) { - for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); - return out; - } + if (ie && ie_version >= 9) prepareSelectAllHack(); + if (captureRightClick) { + e_stop(e); + var mouseup = function () { + off(window, "mouseup", mouseup); + setTimeout(rehide, 20); + }; + on(window, "mouseup", mouseup); + } else { + setTimeout(rehide, 50); + } + }, - // SELECTION UPDATES + readOnlyChanged: function (val) { + if (!val) this.reset(); + }, - // The 'scroll' parameter given to many of these indicated whether - // the new cursor position should be scrolled into view after - // modifying the selection. + setUneditable: nothing, - // If shift is held or the extend flag is set, extends a range to - // include a given position (and optionally a second position). - // Otherwise, simply returns the range between the given positions. - // Used for cursor motion and such. - function extendRange(doc, range, head, other) { - if (doc.cm && doc.cm.display.shift || doc.extend) { - var anchor = range.anchor; - if (other) { - var posBefore = cmp(head, anchor) < 0; - if (posBefore != (cmp(other, anchor) < 0)) { - anchor = head; - head = other; - } else if (posBefore != (cmp(head, other) < 0)) { - head = other; + needsContentAttribute: false + }, TextareaInput.prototype); + + // CONTENTEDITABLE INPUT STYLE + + function ContentEditableInput(cm) { + this.cm = cm; + this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; + this.polling = new Delayed(); + this.gracePeriod = false; + } + + ContentEditableInput.prototype = copyObj({ + init: function (display) { + var input = this, cm = input.cm; + var div = input.div = display.lineDiv; + disableBrowserMagic(div); + + on(div, "paste", function (e) { + if (!signalDOMEvent(cm, e)) handlePaste(e, cm); + }) + + on(div, "compositionstart", function (e) { + var data = e.data; + input.composing = { sel: cm.doc.sel, data: data, startData: data }; + if (!data) return; + var prim = cm.doc.sel.primary(); + var line = cm.getLine(prim.head.line); + var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length)); + if (found > -1 && found <= prim.head.ch) + input.composing.sel = simpleSelection(Pos(prim.head.line, found), + Pos(prim.head.line, found + data.length)); + }); + on(div, "compositionupdate", function (e) { + input.composing.data = e.data; + }); + on(div, "compositionend", function (e) { + var ours = input.composing; + if (!ours) return; + if (e.data != ours.startData && !/\u200b/.test(e.data)) + ours.data = e.data; + // Need a small delay to prevent other code (input event, + // selection polling) from doing damage when fired right after + // compositionend. + setTimeout(function () { + if (!ours.handled) + input.applyComposition(ours); + if (input.composing == ours) + input.composing = null; + }, 50); + }); + + on(div, "touchstart", function () { + input.forceCompositionEnd(); + }); + + on(div, "input", function () { + if (input.composing) return; + if (cm.isReadOnly() || !input.pollContent()) + runInOp(input.cm, function () { regChange(cm); }); + }); + + function onCopyCut(e) { + if (signalDOMEvent(cm, e)) return + if (cm.somethingSelected()) { + lastCopied = { lineWise: false, text: cm.getSelections() }; + if (e.type == "cut") cm.replaceSelection("", null, "cut"); + } else if (!cm.options.lineWiseCopyCut) { + return; + } else { + var ranges = copyableRanges(cm); + lastCopied = { lineWise: true, text: ranges.text }; + if (e.type == "cut") { + cm.operation(function () { + cm.setSelections(ranges.ranges, 0, sel_dontScroll); + cm.replaceSelection("", null, "cut"); + }); } } - return new Range(anchor, head); - } else { - return new Range(other || head, head); - } - } - - // Extend the primary selection range, discard the rest. - function extendSelection(doc, head, other, options) { - setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); - } - - // Extend all selections (pos is an array of selections with length - // equal the number of selections) - function extendSelections(doc, heads, options) { - for (var out = [], i = 0; i < doc.sel.ranges.length; i++) - out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); - var newSel = normalizeSelection(out, doc.sel.primIndex); - setSelection(doc, newSel, options); - } - - // Updates a single range in the selection. - function replaceOneSelection(doc, i, range, options) { - var ranges = doc.sel.ranges.slice(0); - ranges[i] = range; - setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); - } - - // Reset the selection to a single range. - function setSimpleSelection(doc, anchor, head, options) { - setSelection(doc, simpleSelection(anchor, head), options); - } - - // Give beforeSelectionChange handlers a change to influence a - // selection update. - function filterSelectionChange(doc, sel, options) { - var obj = { - ranges: sel.ranges, - update: function (ranges) { - this.ranges = []; - for (var i = 0; i < ranges.length; i++) - this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), - clipPos(doc, ranges[i].head)); - }, - origin: options && options.origin - }; - signal(doc, "beforeSelectionChange", doc, obj); - if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); - if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1); - else return sel; - } - - function setSelectionReplaceHistory(doc, sel, options) { - var done = doc.history.done, last = lst(done); - if (last && last.ranges) { - done[done.length - 1] = sel; - setSelectionNoUndo(doc, sel, options); - } else { - setSelection(doc, sel, options); - } - } - - // Set a new selection. - function setSelection(doc, sel, options) { - setSelectionNoUndo(doc, sel, options); - addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); - } - - function setSelectionNoUndo(doc, sel, options) { - if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) - sel = filterSelectionChange(doc, sel, options); - - var bias = options && options.bias || - (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); - setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); - - if (!(options && options.scroll === false) && doc.cm) - ensureCursorVisible(doc.cm); - } - - function setSelectionInner(doc, sel) { - if (sel.equals(doc.sel)) return; - - doc.sel = sel; - - if (doc.cm) { - doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; - signalCursorActivity(doc.cm); - } - signalLater(doc, "cursorActivity", doc); - } - - // Verify that the selection does not partially select any atomic - // marked ranges. - function reCheckSelection(doc) { - setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); - } - - // Return a selection that does not partially select any atomic - // ranges. - function skipAtomicInSelection(doc, sel, bias, mayClear) { - var out; - for (var i = 0; i < sel.ranges.length; i++) { - var range = sel.ranges[i]; - var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; - var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); - var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); - if (out || newAnchor != range.anchor || newHead != range.head) { - if (!out) out = sel.ranges.slice(0, i); - out[i] = new Range(newAnchor, newHead); + // iOS exposes the clipboard API, but seems to discard content inserted into it + if (e.clipboardData && !ios) { + e.preventDefault(); + e.clipboardData.clearData(); + e.clipboardData.setData("text/plain", lastCopied.text.join("\n")); + } else { + // Old-fashioned briefly-focus-a-textarea hack + var kludge = hiddenTextarea(), te = kludge.firstChild; + cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); + te.value = lastCopied.text.join("\n"); + var hadFocus = document.activeElement; + selectInput(te); + setTimeout(function () { + cm.display.lineSpace.removeChild(kludge); + hadFocus.focus(); + }, 50); } } - return out ? normalizeSelection(out, sel.primIndex) : sel; - } + on(div, "copy", onCopyCut); + on(div, "cut", onCopyCut); + }, - function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { - var line = getLine(doc, pos.line); - if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { - var sp = line.markedSpans[i], m = sp.marker; - if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && - (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { - if (mayClear) { - signal(m, "beforeCursorEnter"); - if (m.explicitlyCleared) { - if (!line.markedSpans) break; - else { --i; continue; } - } - } - if (!m.atomic) continue; - - if (oldPos) { - var near = m.find(dir < 0 ? 1 : -1), diff; - if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) - near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); - if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) - return skipAtomicInner(doc, near, pos, dir, mayClear); - } - - var far = m.find(dir < 0 ? -1 : 1); - if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) - far = movePos(doc, far, dir, far.line == pos.line ? line : null); - return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null; - } - } - return pos; - } - - // Ensure a given position is not inside an atomic range. - function skipAtomic(doc, pos, oldPos, bias, mayClear) { - var dir = bias || 1; - var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || - (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || - skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || - (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); - if (!found) { - doc.cantEdit = true; - return Pos(doc.first, 0); - } - return found; - } - - function movePos(doc, pos, dir, line) { - if (dir < 0 && pos.ch == 0) { - if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1)); - else return null; - } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { - if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0); - else return null; - } else { - return new Pos(pos.line, pos.ch + dir); - } - } - - // SELECTION DRAWING - - function updateSelection(cm) { - cm.display.input.showSelection(cm.display.input.prepareSelection()); - } - - function prepareSelection(cm, primary) { - var doc = cm.doc, result = {}; - var curFragment = result.cursors = document.createDocumentFragment(); - var selFragment = result.selection = document.createDocumentFragment(); - - for (var i = 0; i < doc.sel.ranges.length; i++) { - if (primary === false && i == doc.sel.primIndex) continue; - var range = doc.sel.ranges[i]; - if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue; - var collapsed = range.empty(); - if (collapsed || cm.options.showCursorWhenSelecting) - drawSelectionCursor(cm, range.head, curFragment); - if (!collapsed) - drawSelectionRange(cm, range, selFragment); - } + prepareSelection: function () { + var result = prepareSelection(this.cm, false); + result.focus = this.cm.state.focused; return result; + }, + + showSelection: function (info, takeFocus) { + if (!info || !this.cm.display.view.length) return; + if (info.focus || takeFocus) this.showPrimarySelection(); + this.showMultipleSelections(info); + }, + + showPrimarySelection: function () { + var sel = window.getSelection(), prim = this.cm.doc.sel.primary(); + var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset); + var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset); + if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && + cmp(minPos(curAnchor, curFocus), prim.from()) == 0 && + cmp(maxPos(curAnchor, curFocus), prim.to()) == 0) + return; + + var start = posToDOM(this.cm, prim.from()); + var end = posToDOM(this.cm, prim.to()); + if (!start && !end) return; + + var view = this.cm.display.view; + var old = sel.rangeCount && sel.getRangeAt(0); + if (!start) { + start = { node: view[0].measure.map[2], offset: 0 }; + } else if (!end) { // FIXME dangerously hacky + var measure = view[view.length - 1].measure; + var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; + end = { node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3] }; + } + + try { var rng = range(start.node, start.offset, end.offset, end.node); } + catch (e) { } // Our model of the DOM might be outdated, in which case the range we try to set can be impossible + if (rng) { + if (!gecko && this.cm.state.focused) { + sel.collapse(start.node, start.offset); + if (!rng.collapsed) sel.addRange(rng); + } else { + sel.removeAllRanges(); + sel.addRange(rng); + } + if (old && sel.anchorNode == null) sel.addRange(old); + else if (gecko) this.startGracePeriod(); + } + this.rememberSelection(); + }, + + startGracePeriod: function () { + var input = this; + clearTimeout(this.gracePeriod); + this.gracePeriod = setTimeout(function () { + input.gracePeriod = false; + if (input.selectionChanged()) + input.cm.operation(function () { input.cm.curOp.selectionChanged = true; }); + }, 20); + }, + + showMultipleSelections: function (info) { + removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); + removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); + }, + + rememberSelection: function () { + var sel = window.getSelection(); + this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; + this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; + }, + + selectionInEditor: function () { + var sel = window.getSelection(); + if (!sel.rangeCount) return false; + var node = sel.getRangeAt(0).commonAncestorContainer; + return contains(this.div, node); + }, + + focus: function () { + if (this.cm.options.readOnly != "nocursor") this.div.focus(); + }, + blur: function () { this.div.blur(); }, + getField: function () { return this.div; }, + + supportsTouch: function () { return true; }, + + receivedFocus: function () { + var input = this; + if (this.selectionInEditor()) + this.pollSelection(); + else + runInOp(this.cm, function () { input.cm.curOp.selectionChanged = true; }); + + function poll() { + if (input.cm.state.focused) { + input.pollSelection(); + input.polling.set(input.cm.options.pollInterval, poll); + } + } + this.polling.set(this.cm.options.pollInterval, poll); + }, + + selectionChanged: function () { + var sel = window.getSelection(); + return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || + sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset; + }, + + pollSelection: function () { + if (!this.composing && !this.gracePeriod && this.selectionChanged()) { + var sel = window.getSelection(), cm = this.cm; + this.rememberSelection(); + var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); + var head = domToPos(cm, sel.focusNode, sel.focusOffset); + if (anchor && head) runInOp(cm, function () { + setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); + if (anchor.bad || head.bad) cm.curOp.selectionChanged = true; + }); + } + }, + + pollContent: function () { + var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); + var from = sel.from(), to = sel.to(); + if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false; + + var fromIndex; + if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { + var fromLine = lineNo(display.view[0].line); + var fromNode = display.view[0].node; + } else { + var fromLine = lineNo(display.view[fromIndex].line); + var fromNode = display.view[fromIndex - 1].node.nextSibling; + } + var toIndex = findViewIndex(cm, to.line); + if (toIndex == display.view.length - 1) { + var toLine = display.viewTo - 1; + var toNode = display.lineDiv.lastChild; + } else { + var toLine = lineNo(display.view[toIndex + 1].line) - 1; + var toNode = display.view[toIndex + 1].node.previousSibling; + } + + var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); + var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); + while (newText.length > 1 && oldText.length > 1) { + if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } + else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } + else break; + } + + var cutFront = 0, cutEnd = 0; + var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); + while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) + ++cutFront; + var newBot = lst(newText), oldBot = lst(oldText); + var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), + oldBot.length - (oldText.length == 1 ? cutFront : 0)); + while (cutEnd < maxCutEnd && + newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) + ++cutEnd; + + newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd); + newText[0] = newText[0].slice(cutFront); + + var chFrom = Pos(fromLine, cutFront); + var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); + if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { + replaceRange(cm.doc, newText, chFrom, chTo, "+input"); + return true; + } + }, + + ensurePolled: function () { + this.forceCompositionEnd(); + }, + reset: function () { + this.forceCompositionEnd(); + }, + forceCompositionEnd: function () { + if (!this.composing || this.composing.handled) return; + this.applyComposition(this.composing); + this.composing.handled = true; + this.div.blur(); + this.div.focus(); + }, + applyComposition: function (composing) { + if (this.cm.isReadOnly()) + operation(this.cm, regChange)(this.cm) + else if (composing.data && composing.data != composing.startData) + operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel); + }, + + setUneditable: function (node) { + node.contentEditable = "false" + }, + + onKeyPress: function (e) { + e.preventDefault(); + if (!this.cm.isReadOnly()) + operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); + }, + + readOnlyChanged: function (val) { + this.div.contentEditable = String(val != "nocursor") + }, + + onContextMenu: nothing, + resetPosition: nothing, + + needsContentAttribute: true + }, ContentEditableInput.prototype); + + function posToDOM(cm, pos) { + var view = findViewForLine(cm, pos.line); + if (!view || view.hidden) return null; + var line = getLine(cm.doc, pos.line); + var info = mapFromLineView(view, line, pos.line); + + var order = getOrder(line), side = "left"; + if (order) { + var partPos = getBidiPartAt(order, pos.ch); + side = partPos % 2 ? "right" : "left"; + } + var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); + result.offset = result.collapse == "right" ? result.end : result.start; + return result; + } + + function badPos(pos, bad) { if (bad) pos.bad = true; return pos; } + + function domToPos(cm, node, offset) { + var lineNode; + if (node == cm.display.lineDiv) { + lineNode = cm.display.lineDiv.childNodes[offset]; + if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true); + node = null; offset = 0; + } else { + for (lineNode = node; ; lineNode = lineNode.parentNode) { + if (!lineNode || lineNode == cm.display.lineDiv) return null; + if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break; + } + } + for (var i = 0; i < cm.display.view.length; i++) { + var lineView = cm.display.view[i]; + if (lineView.node == lineNode) + return locateNodeInLineView(lineView, node, offset); + } + } + + function locateNodeInLineView(lineView, node, offset) { + var wrapper = lineView.text.firstChild, bad = false; + if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true); + if (node == wrapper) { + bad = true; + node = wrapper.childNodes[offset]; + offset = 0; + if (!node) { + var line = lineView.rest ? lst(lineView.rest) : lineView.line; + return badPos(Pos(lineNo(line), line.text.length), bad); + } } - // Draws a cursor for the given range - function drawSelectionCursor(cm, head, output) { - var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); + var textNode = node.nodeType == 3 ? node : null, topNode = node; + if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { + textNode = node.firstChild; + if (offset) offset = textNode.nodeValue.length; + } + while (topNode.parentNode != wrapper) topNode = topNode.parentNode; + var measure = lineView.measure, maps = measure.maps; - var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); + function find(textNode, topNode, offset) { + for (var i = -1; i < (maps ? maps.length : 0); i++) { + var map = i < 0 ? measure.map : maps[i]; + for (var j = 0; j < map.length; j += 3) { + var curNode = map[j + 2]; + if (curNode == textNode || curNode == topNode) { + var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); + var ch = map[j] + offset; + if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)]; + return Pos(line, ch); + } + } + } + } + var found = find(textNode, topNode, offset); + if (found) return badPos(found, bad); + + // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems + for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { + found = find(after, after.firstChild, 0); + if (found) + return badPos(Pos(found.line, found.ch - dist), bad); + else + dist += after.textContent.length; + } + for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) { + found = find(before, before.firstChild, -1); + if (found) + return badPos(Pos(found.line, found.ch + dist), bad); + else + dist += after.textContent.length; + } + } + + function domTextBetween(cm, from, to, fromLine, toLine) { + var text = "", closing = false, lineSep = cm.doc.lineSeparator(); + function recognizeMarker(id) { return function (marker) { return marker.id == id; }; } + function walk(node) { + if (node.nodeType == 1) { + var cmText = node.getAttribute("cm-text"); + if (cmText != null) { + if (cmText == "") cmText = node.textContent.replace(/\u200b/g, ""); + text += cmText; + return; + } + var markerID = node.getAttribute("cm-marker"), range; + if (markerID) { + var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); + if (found.length && (range = found[0].find())) + text += getBetween(cm.doc, range.from, range.to).join(lineSep); + return; + } + if (node.getAttribute("contenteditable") == "false") return; + for (var i = 0; i < node.childNodes.length; i++) + walk(node.childNodes[i]); + if (/^(pre|div|p)$/i.test(node.nodeName)) + closing = true; + } else if (node.nodeType == 3) { + var val = node.nodeValue; + if (!val) return; + if (closing) { + text += lineSep; + closing = false; + } + text += val; + } + } + for (; ;) { + walk(from); + if (from == to) break; + from = from.nextSibling; + } + return text; + } + + CodeMirror.inputStyles = { "textarea": TextareaInput, "contenteditable": ContentEditableInput }; + + // SELECTION / CURSOR + + // Selection objects are immutable. A new one is created every time + // the selection changes. A selection is one or more non-overlapping + // (and non-touching) ranges, sorted, and an integer that indicates + // which one is the primary selection (the one that's scrolled into + // view, that getCursor returns, etc). + function Selection(ranges, primIndex) { + this.ranges = ranges; + this.primIndex = primIndex; + } + + Selection.prototype = { + primary: function () { return this.ranges[this.primIndex]; }, + equals: function (other) { + if (other == this) return true; + if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false; + for (var i = 0; i < this.ranges.length; i++) { + var here = this.ranges[i], there = other.ranges[i]; + if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false; + } + return true; + }, + deepCopy: function () { + for (var out = [], i = 0; i < this.ranges.length; i++) + out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); + return new Selection(out, this.primIndex); + }, + somethingSelected: function () { + for (var i = 0; i < this.ranges.length; i++) + if (!this.ranges[i].empty()) return true; + return false; + }, + contains: function (pos, end) { + if (!end) end = pos; + for (var i = 0; i < this.ranges.length; i++) { + var range = this.ranges[i]; + if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) + return i; + } + return -1; + } + }; + + function Range(anchor, head) { + this.anchor = anchor; this.head = head; + } + + Range.prototype = { + from: function () { return minPos(this.anchor, this.head); }, + to: function () { return maxPos(this.anchor, this.head); }, + empty: function () { + return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch; + } + }; + + // Take an unsorted, potentially overlapping set of ranges, and + // build a selection out of it. 'Consumes' ranges array (modifying + // it). + function normalizeSelection(ranges, primIndex) { + var prim = ranges[primIndex]; + ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); + primIndex = indexOf(ranges, prim); + for (var i = 1; i < ranges.length; i++) { + var cur = ranges[i], prev = ranges[i - 1]; + if (cmp(prev.to(), cur.from()) >= 0) { + var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); + var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; + if (i <= primIndex) --primIndex; + ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); + } + } + return new Selection(ranges, primIndex); + } + + function simpleSelection(anchor, head) { + return new Selection([new Range(anchor, head || anchor)], 0); + } + + // Most of the external API clips given positions to make sure they + // actually exist within the document. + function clipLine(doc, n) { return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1)); } + function clipPos(doc, pos) { + if (pos.line < doc.first) return Pos(doc.first, 0); + var last = doc.first + doc.size - 1; + if (pos.line > last) return Pos(last, getLine(doc, last).text.length); + return clipToLen(pos, getLine(doc, pos.line).text.length); + } + function clipToLen(pos, linelen) { + var ch = pos.ch; + if (ch == null || ch > linelen) return Pos(pos.line, linelen); + else if (ch < 0) return Pos(pos.line, 0); + else return pos; + } + function isLine(doc, l) { return l >= doc.first && l < doc.first + doc.size; } + function clipPosArray(doc, array) { + for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]); + return out; + } + + // SELECTION UPDATES + + // The 'scroll' parameter given to many of these indicated whether + // the new cursor position should be scrolled into view after + // modifying the selection. + + // If shift is held or the extend flag is set, extends a range to + // include a given position (and optionally a second position). + // Otherwise, simply returns the range between the given positions. + // Used for cursor motion and such. + function extendRange(doc, range, head, other) { + if (doc.cm && doc.cm.display.shift || doc.extend) { + var anchor = range.anchor; + if (other) { + var posBefore = cmp(head, anchor) < 0; + if (posBefore != (cmp(other, anchor) < 0)) { + anchor = head; + head = other; + } else if (posBefore != (cmp(head, other) < 0)) { + head = other; + } + } + return new Range(anchor, head); + } else { + return new Range(other || head, head); + } + } + + // Extend the primary selection range, discard the rest. + function extendSelection(doc, head, other, options) { + setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options); + } + + // Extend all selections (pos is an array of selections with length + // equal the number of selections) + function extendSelections(doc, heads, options) { + for (var out = [], i = 0; i < doc.sel.ranges.length; i++) + out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null); + var newSel = normalizeSelection(out, doc.sel.primIndex); + setSelection(doc, newSel, options); + } + + // Updates a single range in the selection. + function replaceOneSelection(doc, i, range, options) { + var ranges = doc.sel.ranges.slice(0); + ranges[i] = range; + setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options); + } + + // Reset the selection to a single range. + function setSimpleSelection(doc, anchor, head, options) { + setSelection(doc, simpleSelection(anchor, head), options); + } + + // Give beforeSelectionChange handlers a change to influence a + // selection update. + function filterSelectionChange(doc, sel, options) { + var obj = { + ranges: sel.ranges, + update: function (ranges) { + this.ranges = []; + for (var i = 0; i < ranges.length; i++) + this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), + clipPos(doc, ranges[i].head)); + }, + origin: options && options.origin + }; + signal(doc, "beforeSelectionChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj); + if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1); + else return sel; + } + + function setSelectionReplaceHistory(doc, sel, options) { + var done = doc.history.done, last = lst(done); + if (last && last.ranges) { + done[done.length - 1] = sel; + setSelectionNoUndo(doc, sel, options); + } else { + setSelection(doc, sel, options); + } + } + + // Set a new selection. + function setSelection(doc, sel, options) { + setSelectionNoUndo(doc, sel, options); + addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); + } + + function setSelectionNoUndo(doc, sel, options) { + if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) + sel = filterSelectionChange(doc, sel, options); + + var bias = options && options.bias || + (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); + setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); + + if (!(options && options.scroll === false) && doc.cm) + ensureCursorVisible(doc.cm); + } + + function setSelectionInner(doc, sel) { + if (sel.equals(doc.sel)) return; + + doc.sel = sel; + + if (doc.cm) { + doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; + signalCursorActivity(doc.cm); + } + signalLater(doc, "cursorActivity", doc); + } + + // Verify that the selection does not partially select any atomic + // marked ranges. + function reCheckSelection(doc) { + setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll); + } + + // Return a selection that does not partially select any atomic + // ranges. + function skipAtomicInSelection(doc, sel, bias, mayClear) { + var out; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; + var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); + var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); + if (out || newAnchor != range.anchor || newHead != range.head) { + if (!out) out = sel.ranges.slice(0, i); + out[i] = new Range(newAnchor, newHead); + } + } + return out ? normalizeSelection(out, sel.primIndex) : sel; + } + + function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { + var line = getLine(doc, pos.line); + if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker; + if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && + (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter"); + if (m.explicitlyCleared) { + if (!line.markedSpans) break; + else { --i; continue; } + } + } + if (!m.atomic) continue; + + if (oldPos) { + var near = m.find(dir < 0 ? 1 : -1), diff; + if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) + near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); + if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) + return skipAtomicInner(doc, near, pos, dir, mayClear); + } + + var far = m.find(dir < 0 ? -1 : 1); + if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) + far = movePos(doc, far, dir, far.line == pos.line ? line : null); + return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null; + } + } + return pos; + } + + // Ensure a given position is not inside an atomic range. + function skipAtomic(doc, pos, oldPos, bias, mayClear) { + var dir = bias || 1; + var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || + skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); + if (!found) { + doc.cantEdit = true; + return Pos(doc.first, 0); + } + return found; + } + + function movePos(doc, pos, dir, line) { + if (dir < 0 && pos.ch == 0) { + if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1)); + else return null; + } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { + if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0); + else return null; + } else { + return new Pos(pos.line, pos.ch + dir); + } + } + + // SELECTION DRAWING + + function updateSelection(cm) { + cm.display.input.showSelection(cm.display.input.prepareSelection()); + } + + function prepareSelection(cm, primary) { + var doc = cm.doc, result = {}; + var curFragment = result.cursors = document.createDocumentFragment(); + var selFragment = result.selection = document.createDocumentFragment(); + + for (var i = 0; i < doc.sel.ranges.length; i++) { + if (primary === false && i == doc.sel.primIndex) continue; + var range = doc.sel.ranges[i]; + if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue; + var collapsed = range.empty(); + if (collapsed || cm.options.showCursorWhenSelecting) + drawSelectionCursor(cm, range.head, curFragment); + if (!collapsed) + drawSelectionRange(cm, range, selFragment); + } + return result; + } + + // Draws a cursor for the given range + function drawSelectionCursor(cm, head, output) { + var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); + + var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); + + var documentZoom = getDocumentZoom(); + + cursor.style.left = pos.left / documentZoom + "px"; + cursor.style.top = pos.top / documentZoom + "px"; + cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight / documentZoom + "px"; + + if (pos.other) { + // Secondary cursor, shown when on a 'jump' in bi-directional text + var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); + otherCursor.style.display = ""; + otherCursor.style.left = pos.other.left / documentZoom + "px"; + otherCursor.style.top = pos.other.top / documentZoom + "px"; + otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 / documentZoom + "px"; + } + } + + // Draws the given range as a highlighted selection + function drawSelectionRange(cm, range, output) { + var display = cm.display, doc = cm.doc; + var fragment = document.createDocumentFragment(); + var padding = paddingH(cm.display), leftSide = padding.left; + var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; + + function add(left, top, width, bottom) { + if (top < 0) top = 0; + top = Math.round(top); + bottom = Math.round(bottom); var documentZoom = getDocumentZoom(); - cursor.style.left = pos.left / documentZoom + "px"; - cursor.style.top = pos.top / documentZoom + "px"; - cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight / documentZoom + "px"; - - if (pos.other) { - // Secondary cursor, shown when on a 'jump' in bi-directional text - var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); - otherCursor.style.display = ""; - otherCursor.style.left = pos.other.left / documentZoom + "px"; - otherCursor.style.top = pos.other.top / documentZoom + "px"; - otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 / documentZoom + "px"; - } + fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left / documentZoom + + "px; top: " + top / documentZoom + "px; width: " + (width == null ? rightSide - left : width) / documentZoom + + "px; height: " + (bottom - top) / documentZoom + "px")); } - // Draws the given range as a highlighted selection - function drawSelectionRange(cm, range, output) { - var display = cm.display, doc = cm.doc; - var fragment = document.createDocumentFragment(); - var padding = paddingH(cm.display), leftSide = padding.left; - var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; - - function add(left, top, width, bottom) { - if (top < 0) top = 0; - top = Math.round(top); - bottom = Math.round(bottom); - - var documentZoom = getDocumentZoom(); - - fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left / documentZoom + - "px; top: " + top / documentZoom + "px; width: " + (width == null ? rightSide - left : width) / documentZoom + - "px; height: " + (bottom - top) / documentZoom + "px")); + function drawForLine(line, fromArg, toArg) { + var lineObj = getLine(doc, line); + var lineLen = lineObj.text.length; + var start, end; + function coords(ch, bias) { + return charCoords(cm, Pos(line, ch), "div", lineObj, bias); } - function drawForLine(line, fromArg, toArg) { - var lineObj = getLine(doc, line); - var lineLen = lineObj.text.length; - var start, end; - function coords(ch, bias) { - return charCoords(cm, Pos(line, ch), "div", lineObj, bias); + iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) { + var leftPos = coords(from, "left"), rightPos, left, right; + if (from == to) { + rightPos = leftPos; + left = right = leftPos.left; + } else { + rightPos = coords(to - 1, "right"); + if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } + left = leftPos.left; + right = rightPos.right; } + if (fromArg == null && from == 0) left = leftSide; + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part + add(left, leftPos.top, null, leftPos.bottom); + left = leftSide; + if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); + } + if (toArg == null && to == lineLen) right = rightSide; + if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) + start = leftPos; + if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) + end = rightPos; + if (left < leftSide + 1) left = leftSide; + add(left, rightPos.top, right - left, rightPos.bottom); + }); + return { start: start, end: end }; + } - iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) { - var leftPos = coords(from, "left"), rightPos, left, right; - if (from == to) { - rightPos = leftPos; - left = right = leftPos.left; - } else { - rightPos = coords(to - 1, "right"); - if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; } - left = leftPos.left; - right = rightPos.right; - } - if (fromArg == null && from == 0) left = leftSide; - if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part - add(left, leftPos.top, null, leftPos.bottom); - left = leftSide; - if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top); - } - if (toArg == null && to == lineLen) right = rightSide; - if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left) - start = leftPos; - if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right) - end = rightPos; - if (left < leftSide + 1) left = leftSide; - add(left, rightPos.top, right - left, rightPos.bottom); - }); - return { start: start, end: end }; + var sFrom = range.from(), sTo = range.to(); + if (sFrom.line == sTo.line) { + drawForLine(sFrom.line, sFrom.ch, sTo.ch); + } else { + var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); + var singleVLine = visualLine(fromLine) == visualLine(toLine); + var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; + var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; + if (singleVLine) { + if (leftEnd.top < rightStart.top - 2) { + add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); + add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); + } else { + add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); + } } + if (leftEnd.bottom < rightStart.top) + add(leftSide, leftEnd.bottom, null, rightStart.top); + } - var sFrom = range.from(), sTo = range.to(); - if (sFrom.line == sTo.line) { - drawForLine(sFrom.line, sFrom.ch, sTo.ch); + output.appendChild(fragment); + } + + // Cursor-blinking + function restartBlink(cm) { + if (!cm.state.focused) return; + var display = cm.display; + clearInterval(display.blinker); + var on = true; + display.cursorDiv.style.visibility = ""; + if (cm.options.cursorBlinkRate > 0) + display.blinker = setInterval(function () { + display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; + }, cm.options.cursorBlinkRate); + else if (cm.options.cursorBlinkRate < 0) + display.cursorDiv.style.visibility = "hidden"; + } + + // HIGHLIGHT WORKER + + function startWorker(cm, time) { + if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) + cm.state.highlight.set(time, bind(highlightWorker, cm)); + } + + function highlightWorker(cm) { + var doc = cm.doc; + if (doc.frontier < doc.first) doc.frontier = doc.first; + if (doc.frontier >= cm.display.viewTo) return; + var end = +new Date + cm.options.workTime; + var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); + var changedLines = []; + + doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { + if (doc.frontier >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength; + var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true); + line.styles = highlighted.styles; + var oldCls = line.styleClasses, newCls = highlighted.classes; + if (newCls) line.styleClasses = newCls; + else if (oldCls) line.styleClasses = null; + var ischange = !oldStyles || oldStyles.length != line.styles.length || + oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); + for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; + if (ischange) changedLines.push(doc.frontier); + line.stateAfter = tooLong ? state : copyState(doc.mode, state); } else { - var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); - var singleVLine = visualLine(fromLine) == visualLine(toLine); - var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; - var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; - if (singleVLine) { - if (leftEnd.top < rightStart.top - 2) { - add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); - add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); - } else { - add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); - } - } - if (leftEnd.bottom < rightStart.top) - add(leftSide, leftEnd.bottom, null, rightStart.top); + if (line.text.length <= cm.options.maxHighlightLength) + processLine(cm, line.text, state); + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; } - - output.appendChild(fragment); - } - - // Cursor-blinking - function restartBlink(cm) { - if (!cm.state.focused) return; - var display = cm.display; - clearInterval(display.blinker); - var on = true; - display.cursorDiv.style.visibility = ""; - if (cm.options.cursorBlinkRate > 0) - display.blinker = setInterval(function () { - display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; - }, cm.options.cursorBlinkRate); - else if (cm.options.cursorBlinkRate < 0) - display.cursorDiv.style.visibility = "hidden"; - } - - // HIGHLIGHT WORKER - - function startWorker(cm, time) { - if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo) - cm.state.highlight.set(time, bind(highlightWorker, cm)); - } - - function highlightWorker(cm) { - var doc = cm.doc; - if (doc.frontier < doc.first) doc.frontier = doc.first; - if (doc.frontier >= cm.display.viewTo) return; - var end = +new Date + cm.options.workTime; - var state = copyState(doc.mode, getStateBefore(cm, doc.frontier)); - var changedLines = []; - - doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { - if (doc.frontier >= cm.display.viewFrom) { // Visible - var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength; - var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true); - line.styles = highlighted.styles; - var oldCls = line.styleClasses, newCls = highlighted.classes; - if (newCls) line.styleClasses = newCls; - else if (oldCls) line.styleClasses = null; - var ischange = !oldStyles || oldStyles.length != line.styles.length || - oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); - for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]; - if (ischange) changedLines.push(doc.frontier); - line.stateAfter = tooLong ? state : copyState(doc.mode, state); - } else { - if (line.text.length <= cm.options.maxHighlightLength) - processLine(cm, line.text, state); - line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null; - } - ++doc.frontier; - if (+new Date > end) { - startWorker(cm, cm.options.workDelay); - return true; - } - }); - if (changedLines.length) runInOp(cm, function () { - for (var i = 0; i < changedLines.length; i++) - regLineChange(cm, changedLines[i], "text"); - }); - } - - // Finds the line to start with when starting a parse. Tries to - // find a line with a stateAfter, so that it can start with a - // valid state. If that fails, it returns the line with the - // smallest indentation, which tends to need the least context to - // parse correctly. - function findStartLine(cm, n, precise) { - var minindent, minline, doc = cm.doc; - var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); - for (var search = n; search > lim; --search) { - if (search <= doc.first) return doc.first; - var line = getLine(doc, search - 1); - if (line.stateAfter && (!precise || search <= doc.frontier)) return search; - var indented = countColumn(line.text, null, cm.options.tabSize); - if (minline == null || minindent > indented) { - minline = search - 1; - minindent = indented; - } - } - return minline; - } - - function getStateBefore(cm, n, precise) { - var doc = cm.doc, display = cm.display; - if (!doc.mode.startState) return true; - var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos - 1).stateAfter; - if (!state) state = startState(doc.mode); - else state = copyState(doc.mode, state); - doc.iter(pos, n, function (line) { - processLine(cm, line.text, state); - var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; - line.stateAfter = save ? copyState(doc.mode, state) : null; - ++pos; - }); - if (precise) doc.frontier = pos; - return state; - } - - // POSITION MEASUREMENT - - function paddingTop(display) { return display.lineSpace.offsetTop; } - function paddingVert(display) { return display.mover.offsetHeight - display.lineSpace.offsetHeight; } - function paddingH(display) { - if (display.cachedPaddingH) return display.cachedPaddingH; - var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); - var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; - var data = { left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight) }; - if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data; - return data; - } - - function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; } - function displayWidth(cm) { - return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth; - } - function displayHeight(cm) { - return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight; - } - - // Ensure the lineView.wrapping.heights array is populated. This is - // an array of bottom offsets for the lines that make up a drawn - // line. When lineWrapping is on, there might be more than one - // height. - function ensureLineHeights(cm, lineView, rect) { - var wrapping = cm.options.lineWrapping; - var curWidth = wrapping && displayWidth(cm); - if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { - var heights = lineView.measure.heights = []; - if (wrapping) { - lineView.measure.width = curWidth; - var rects = lineView.text.firstChild.getClientRects(); - for (var i = 0; i < rects.length - 1; i++) { - var cur = rects[i], next = rects[i + 1]; - if (Math.abs(cur.bottom - next.bottom) > 2) - heights.push((cur.bottom + next.top) / 2 - rect.top); - } - } - heights.push(rect.bottom - rect.top); - } - } - - // Find a line map (mapping character offsets to text nodes) and a - // measurement cache for the given line number. (A line view might - // contain multiple lines when collapsed ranges are present.) - function mapFromLineView(lineView, line, lineN) { - if (lineView.line == line) - return { map: lineView.measure.map, cache: lineView.measure.cache }; - for (var i = 0; i < lineView.rest.length; i++) - if (lineView.rest[i] == line) - return { map: lineView.measure.maps[i], cache: lineView.measure.caches[i] }; - for (var i = 0; i < lineView.rest.length; i++) - if (lineNo(lineView.rest[i]) > lineN) - return { map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true }; - } - - // Render a line into the hidden node display.externalMeasured. Used - // when measurement is needed for a line that's not in the viewport. - function updateExternalMeasurement(cm, line) { - line = visualLine(line); - var lineN = lineNo(line); - var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); - view.lineN = lineN; - var built = view.built = buildLineContent(cm, view); - view.text = built.pre; - removeChildrenAndAdd(cm.display.lineMeasure, built.pre); - return view; - } - - // Get a {top, bottom, left, right} box (in line-local coordinates) - // for a given character. - function measureChar(cm, line, ch, bias) { - return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias); - } - - // Find a line view that corresponds to the given line number. - function findViewForLine(cm, lineN) { - if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) - return cm.display.view[findViewIndex(cm, lineN)]; - var ext = cm.display.externalMeasured; - if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) - return ext; - } - - // Measurement can be split in two steps, the set-up work that - // applies to the whole line, and the measurement of the actual - // character. Functions like coordsChar, that need to do a lot of - // measurements in a row, can thus ensure that the set-up work is - // only done once. - function prepareMeasureForLine(cm, line) { - var lineN = lineNo(line); - var view = findViewForLine(cm, lineN); - if (view && !view.text) { - view = null; - } else if (view && view.changes) { - updateLineForChanges(cm, view, lineN, getDimensions(cm)); - cm.curOp.forceUpdate = true; - } - if (!view) - view = updateExternalMeasurement(cm, line); - - var info = mapFromLineView(view, line, lineN); - return { - line: line, view: view, rect: null, - map: info.map, cache: info.cache, before: info.before, - hasHeights: false - }; - } - - // Given a prepared measurement object, measures the position of an - // actual character (or fetches it from the cache). - function measureCharPrepared(cm, prepared, ch, bias, varHeight) { - if (prepared.before) ch = -1; - var key = ch + (bias || ""), found; - if (prepared.cache.hasOwnProperty(key)) { - found = prepared.cache[key]; - } else { - if (!prepared.rect) - prepared.rect = prepared.view.text.getBoundingClientRect(); - if (!prepared.hasHeights) { - ensureLineHeights(cm, prepared.view, prepared.rect); - prepared.hasHeights = true; - } - found = measureCharInner(cm, prepared, ch, bias); - if (!found.bogus) prepared.cache[key] = found; - } - return { - left: found.left, right: found.right, - top: varHeight ? found.rtop : found.top, - bottom: varHeight ? found.rbottom : found.bottom - }; - } - - var nullRect = { left: 0, right: 0, top: 0, bottom: 0 }; - - function nodeAndOffsetInLineMap(map, ch, bias) { - var node, start, end, collapse; - // First, search the line map for the text node corresponding to, - // or closest to, the target character. - for (var i = 0; i < map.length; i += 3) { - var mStart = map[i], mEnd = map[i + 1]; - if (ch < mStart) { - start = 0; end = 1; - collapse = "left"; - } else if (ch < mEnd) { - start = ch - mStart; - end = start + 1; - } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { - end = mEnd - mStart; - start = end - 1; - if (ch >= mEnd) collapse = "right"; - } - if (start != null) { - node = map[i + 2]; - if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) - collapse = bias; - if (bias == "left" && start == 0) - while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { - node = map[(i -= 3) + 2]; - collapse = "left"; - } - if (bias == "right" && start == mEnd - mStart) - while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { - node = map[(i += 3) + 2]; - collapse = "right"; - } - break; - } - } - return { node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd }; - } - - function getUsefulRect(rects, bias) { - var rect = nullRect - if (bias == "left") for (var i = 0; i < rects.length; i++) { - if ((rect = rects[i]).left != rect.right) break - } else for (var i = rects.length - 1; i >= 0; i--) { - if ((rect = rects[i]).left != rect.right) break - } - return rect - } - - function measureCharInner(cm, prepared, ch, bias) { - var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); - var node = place.node, start = place.start, end = place.end, collapse = place.collapse; - - var rect; - if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. - for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned - while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start; - while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end; - if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) - rect = node.parentNode.getBoundingClientRect(); - else - rect = getUsefulRect(range(node, start, end).getClientRects(), bias) - if (rect.left || rect.right || start == 0) break; - end = start; - start = start - 1; - collapse = "right"; - } - if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect); - } else { // If it is a widget, simply get the box for the whole widget. - if (start > 0) collapse = bias = "right"; - var rects; - if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) - rect = rects[bias == "right" ? rects.length - 1 : 0]; - else - rect = node.getBoundingClientRect(); - } - if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { - var rSpan = node.parentNode.getClientRects()[0]; - if (rSpan) - rect = { left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom }; - else - rect = nullRect; - } - - var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; - var mid = (rtop + rbot) / 2; - var heights = prepared.view.measure.heights; - for (var i = 0; i < heights.length - 1; i++) - if (mid < heights[i]) break; - var top = i ? heights[i - 1] : 0, bot = heights[i]; - var result = { - left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, - right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, - top: top, bottom: bot - }; - if (!rect.left && !rect.right) result.bogus = true; - if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } - - return result; - } - - // Work around problem with bounding client rects on ranges being - // returned incorrectly when zoomed on IE10 and below. - function maybeUpdateRectForZooming(measure, rect) { - if (!window.screen || screen.logicalXDPI == null || - screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) - return rect; - var scaleX = screen.logicalXDPI / screen.deviceXDPI; - var scaleY = screen.logicalYDPI / screen.deviceYDPI; - return { - left: rect.left * scaleX, right: rect.right * scaleX, - top: rect.top * scaleY, bottom: rect.bottom * scaleY - }; - } - - function clearLineMeasurementCacheFor(lineView) { - if (lineView.measure) { - lineView.measure.cache = {}; - lineView.measure.heights = null; - if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) - lineView.measure.caches[i] = {}; - } - } - - function clearLineMeasurementCache(cm) { - cm.display.externalMeasure = null; - removeChildren(cm.display.lineMeasure); - for (var i = 0; i < cm.display.view.length; i++) - clearLineMeasurementCacheFor(cm.display.view[i]); - } - - function clearCaches(cm) { - clearLineMeasurementCache(cm); - cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; - if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; - cm.display.lineNumChars = null; - } - - function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } - function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } - - // Converts a {top, bottom, left, right} box from line-local - // coordinates into another coordinate system. Context may be one of - // "line", "div" (display.lineDiv), "local"/null (editor), "window", - // or "page". - function intoCoordSystem(cm, lineObj, rect, context) { - if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { - var size = widgetHeight(lineObj.widgets[i]); - rect.top += size; rect.bottom += size; - } - if (context == "line") return rect; - if (!context) context = "local"; - var yOff = heightAtLine(lineObj); - if (context == "local") yOff += paddingTop(cm.display); - else yOff -= cm.display.viewOffset; - if (context == "page" || context == "window") { - var lOff = cm.display.lineSpace.getBoundingClientRect(); - yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); - var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); - rect.left += xOff; rect.right += xOff; - } - rect.top += yOff; rect.bottom += yOff; - return rect; - } - - // Coverts a box from "div" coords to another coordinate system. - // Context may be "window", "page", "div", or "local"/null. - function fromCoordSystem(cm, coords, context) { - if (context == "div") return coords; - var left = coords.left, top = coords.top; - // First move into "page" coordinate system - if (context == "page") { - left -= pageScrollX(); - top -= pageScrollY(); - } else if (context == "local" || !context) { - var localBox = cm.display.sizer.getBoundingClientRect(); - left += localBox.left; - top += localBox.top; - } - - var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); - return { left: left - lineSpaceBox.left, top: top - lineSpaceBox.top }; - } - - function charCoords(cm, pos, context, lineObj, bias) { - if (!lineObj) lineObj = getLine(cm.doc, pos.line); - return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context); - } - - // Returns a box for a given cursor position, which may have an - // 'other' property containing the position of the secondary cursor - // on a bidi boundary. - function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { - lineObj = lineObj || getLine(cm.doc, pos.line); - if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj); - function get(ch, right) { - var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); - if (right) m.left = m.right; else m.right = m.left; - return intoCoordSystem(cm, lineObj, m, context); - } - function getBidi(ch, partPos) { - var part = order[partPos], right = part.level % 2; - if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { - part = order[--partPos]; - ch = bidiRight(part) - (part.level % 2 ? 0 : 1); - right = true; - } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { - part = order[++partPos]; - ch = bidiLeft(part) - part.level % 2; - right = false; - } - if (right && ch == part.to && ch > part.from) return get(ch - 1); - return get(ch, right); - } - var order = getOrder(lineObj), ch = pos.ch; - if (!order) return get(ch); - var partPos = getBidiPartAt(order, ch); - var val = getBidi(ch, partPos); - if (bidiOther != null) val.other = getBidi(ch, bidiOther); - return val; - } - - // Used to cheaply estimate the coordinates for a position. Used for - // intermediate scroll updates. - function estimateCoords(cm, pos) { - var left = 0, pos = clipPos(cm.doc, pos); - if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch; - var lineObj = getLine(cm.doc, pos.line); - var top = heightAtLine(lineObj) + paddingTop(cm.display); - return { left: left, right: left, top: top, bottom: top + lineObj.height }; - } - - // Positions returned by coordsChar contain some extra information. - // xRel is the relative x position of the input coordinates compared - // to the found position (so xRel > 0 means the coordinates are to - // the right of the character position, for example). When outside - // is true, that means the coordinates lie outside the line's - // vertical range. - function PosWithInfo(line, ch, outside, xRel) { - var pos = Pos(line, ch); - pos.xRel = xRel; - if (outside) pos.outside = true; - return pos; - } - - // Compute the character position closest to the given coordinates. - // Input must be lineSpace-local ("div" coordinate system). - function coordsChar(cm, x, y) { - var doc = cm.doc; - y += cm.display.viewOffset; - if (y < 0) return PosWithInfo(doc.first, 0, true, -1); - var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; - if (lineN > last) - return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); - if (x < 0) x = 0; - - var lineObj = getLine(doc, lineN); - for (; ;) { - var found = coordsCharInner(cm, lineObj, lineN, x, y); - var merged = collapsedSpanAtEnd(lineObj); - var mergedPos = merged && merged.find(0, true); - if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) - lineN = lineNo(lineObj = mergedPos.to.line); - else - return found; - } - } - - function coordsCharInner(cm, lineObj, lineNo, x, y) { - var innerOff = y - heightAtLine(lineObj); - var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; - var preparedMeasure = prepareMeasureForLine(cm, lineObj); - - function getX(ch) { - var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); - wrongLine = true; - if (innerOff > sp.bottom) return sp.left - adjust; - else if (innerOff < sp.top) return sp.left + adjust; - else wrongLine = false; - return sp.left; - } - - var bidi = getOrder(lineObj), dist = lineObj.text.length; - var from = lineLeft(lineObj), to = lineRight(lineObj); - var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; - - if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); - // Do a binary search between these bounds. - for (; ;) { - if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { - var ch = x < fromX || x - fromX <= toX - x ? from : to; - var outside = ch == from ? fromOutside : toOutside - var xDiff = x - (ch == from ? fromX : toX); - // This is a kludge to handle the case where the coordinates - // are after a line-wrapped line. We should replace it with a - // more general handling of cursor positions around line - // breaks. (Issue #4078) - if (toOutside && !bidi && !/\s/.test(lineObj.text.charAt(ch)) && xDiff > 0 && - ch < lineObj.text.length && preparedMeasure.view.measure.heights.length > 1) { - var charSize = measureCharPrepared(cm, preparedMeasure, ch, "right"); - if (innerOff <= charSize.bottom && innerOff >= charSize.top && Math.abs(x - charSize.right) < xDiff) { - outside = false - ch++ - xDiff = x - charSize.right - } - } - while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; - var pos = PosWithInfo(lineNo, ch, outside, xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); - return pos; - } - var step = Math.ceil(dist / 2), middle = from + step; - if (bidi) { - middle = from; - for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); - } - var middleX = getX(middle); - if (middleX > x) { to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step; } - else { from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step; } - } - } - - var measureText; - // Compute the default text height. - function textHeight(display) { - if (display.cachedTextHeight != null) return display.cachedTextHeight; - if (measureText == null) { - measureText = elt("pre"); - // Measure a bunch of lines, for browsers that compute - // fractional heights. - for (var i = 0; i < 49; ++i) { - measureText.appendChild(document.createTextNode("x")); - measureText.appendChild(elt("br")); - } - measureText.appendChild(document.createTextNode("x")); - } - removeChildrenAndAdd(display.measure, measureText); - var height = measureText.offsetHeight / 50; - if (height > 3) display.cachedTextHeight = height; - removeChildren(display.measure); - return height || 1; - } - - // Compute the default character width. - function charWidth(display) { - if (display.cachedCharWidth != null) return display.cachedCharWidth; - var anchor = elt("span", "xxxxxxxxxx"); - var pre = elt("pre", [anchor]); - removeChildrenAndAdd(display.measure, pre); - var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; - if (width > 2) display.cachedCharWidth = width; - return width || 10; - } - - // OPERATIONS - - // Operations are used to wrap a series of changes to the editor - // state in such a way that each change won't have to update the - // cursor and display (which would be awkward, slow, and - // error-prone). Instead, display updates are batched and then all - // combined and executed at once. - - var operationGroup = null; - - var nextOpId = 0; - // Start a new operation. - function startOperation(cm) { - cm.curOp = { - cm: cm, - viewChanged: false, // Flag that indicates that lines might need to be redrawn - startHeight: cm.doc.height, // Used to detect need to update scrollbar - forceUpdate: false, // Used to force a redraw - updateInput: null, // Whether to reset the input textarea - typing: false, // Whether this reset should be careful to leave existing text (for compositing) - changeObjs: null, // Accumulated changes, for firing change events - cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on - cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already - selectionChanged: false, // Whether the selection needs to be redrawn - updateMaxLine: false, // Set when the widest line needs to be determined anew - scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet - scrollToPos: null, // Used to scroll to a specific position - focus: false, - id: ++nextOpId // Unique ID - }; - if (operationGroup) { - operationGroup.ops.push(cm.curOp); - } else { - cm.curOp.ownsGroup = operationGroup = { - ops: [cm.curOp], - delayedCallbacks: [] - }; - } - } - - function fireCallbacksForOps(group) { - // Calls delayed callbacks and cursorActivity handlers until no - // new ones appear - var callbacks = group.delayedCallbacks, i = 0; - do { - for (; i < callbacks.length; i++) - callbacks[i].call(null); - for (var j = 0; j < group.ops.length; j++) { - var op = group.ops[j]; - if (op.cursorActivityHandlers) - while (op.cursorActivityCalled < op.cursorActivityHandlers.length) - op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); - } - } while (i < callbacks.length); - } - - // Finish an operation, updating the display and signalling delayed events - function endOperation(cm) { - var op = cm.curOp, group = op.ownsGroup; - if (!group) return; - - try { fireCallbacksForOps(group); } - finally { - operationGroup = null; - for (var i = 0; i < group.ops.length; i++) - group.ops[i].cm.curOp = null; - endOperations(group); - } - } - - // The DOM updates done when an operation finishes are batched so - // that the minimum number of relayouts are required. - function endOperations(group) { - var ops = group.ops; - for (var i = 0; i < ops.length; i++) // Read DOM - endOperation_R1(ops[i]); - for (var i = 0; i < ops.length; i++) // Write DOM (maybe) - endOperation_W1(ops[i]); - for (var i = 0; i < ops.length; i++) // Read DOM - endOperation_R2(ops[i]); - for (var i = 0; i < ops.length; i++) // Write DOM (maybe) - endOperation_W2(ops[i]); - for (var i = 0; i < ops.length; i++) // Read DOM - endOperation_finish(ops[i]); - } - - function endOperation_R1(op) { - var cm = op.cm, display = cm.display; - maybeClipScrollbars(cm); - if (op.updateMaxLine) findMaxLine(cm); - - op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || - op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || - op.scrollToPos.to.line >= display.viewTo) || - display.maxLineChanged && cm.options.lineWrapping; - op.update = op.mustUpdate && - new DisplayUpdate(cm, op.mustUpdate && { top: op.scrollTop, ensure: op.scrollToPos }, op.forceUpdate); - } - - function endOperation_W1(op) { - op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); - } - - function endOperation_R2(op) { - var cm = op.cm, display = cm.display; - if (op.updatedDisplay) updateHeightsInViewport(cm); - - op.barMeasure = measureForScrollbars(cm); - - // If the max line changed since it was last measured, measure it, - // and ensure the document's width matches it. - // updateDisplay_W2 will use these properties to do the actual resizing - if (display.maxLineChanged && !cm.options.lineWrapping) { - op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; - cm.display.sizerWidth = op.adjustWidthTo; - op.barMeasure.scrollWidth = - Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); - op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); - } - - if (op.updatedDisplay || op.selectionChanged) - op.preparedSelection = display.input.prepareSelection(op.focus); - } - - function endOperation_W2(op) { - var cm = op.cm; - - if (op.adjustWidthTo != null) { - cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; - if (op.maxScrollLeft < cm.doc.scrollLeft) - setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); - cm.display.maxLineChanged = false; - } - - var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus()) - if (op.preparedSelection) - cm.display.input.showSelection(op.preparedSelection, takeFocus); - if (op.updatedDisplay || op.startHeight != cm.doc.height) - updateScrollbars(cm, op.barMeasure); - if (op.updatedDisplay) - setDocumentHeight(cm, op.barMeasure); - - if (op.selectionChanged) restartBlink(cm); - - if (cm.state.focused && op.updateInput) - cm.display.input.reset(op.typing); - if (takeFocus) ensureFocus(op.cm); - } - - function endOperation_finish(op) { - var cm = op.cm, display = cm.display, doc = cm.doc; - - if (op.updatedDisplay) postUpdateDisplay(cm, op.update); - - // Abort mouse wheel delta measurement, when scrolling explicitly - if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) - display.wheelStartX = display.wheelStartY = null; - - // Propagate the scroll position to the actual DOM scroller - if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) { - doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); - display.scrollbars.setScrollTop(doc.scrollTop); - display.scroller.scrollTop = doc.scrollTop; - } - if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) { - doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); - display.scrollbars.setScrollLeft(doc.scrollLeft); - display.scroller.scrollLeft = doc.scrollLeft; - alignHorizontally(cm); - } - // If we need to scroll a specific position into view, do so. - if (op.scrollToPos) { - var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), - clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); - if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); - } - - // Fire events for markers that are hidden/unidden by editing or - // undoing - var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; - if (hidden) for (var i = 0; i < hidden.length; ++i) - if (!hidden[i].lines.length) signal(hidden[i], "hide"); - if (unhidden) for (var i = 0; i < unhidden.length; ++i) - if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); - - if (display.wrapper.offsetHeight) - doc.scrollTop = cm.display.scroller.scrollTop; - - // Fire change events, and delayed event handlers - if (op.changeObjs) - signal(cm, "changes", cm, op.changeObjs); - if (op.update) - op.update.finish(); - } - - // Run the given function in an operation - function runInOp(cm, f) { - if (cm.curOp) return f(); - startOperation(cm); - try { return f(); } - finally { endOperation(cm); } - } - // Wraps a function in an operation. Returns the wrapped function. - function operation(cm, f) { - return function () { - if (cm.curOp) return f.apply(cm, arguments); - startOperation(cm); - try { return f.apply(cm, arguments); } - finally { endOperation(cm); } - }; - } - // Used to add methods to editor and doc instances, wrapping them in - // operations. - function methodOp(f) { - return function () { - if (this.curOp) return f.apply(this, arguments); - startOperation(this); - try { return f.apply(this, arguments); } - finally { endOperation(this); } - }; - } - function docMethodOp(f) { - return function () { - var cm = this.cm; - if (!cm || cm.curOp) return f.apply(this, arguments); - startOperation(cm); - try { return f.apply(this, arguments); } - finally { endOperation(cm); } - }; - } - - // VIEW TRACKING - - // These objects are used to represent the visible (currently drawn) - // part of the document. A LineView may correspond to multiple - // logical lines, if those are connected by collapsed ranges. - function LineView(doc, line, lineN) { - // The starting line - this.line = line; - // Continuing lines, if any - this.rest = visualLineContinued(line); - // Number of logical lines in this visual line - this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; - this.node = this.text = null; - this.hidden = lineIsHidden(doc, line); - } - - // Create a range of LineView objects for the given lines. - function buildViewArray(cm, from, to) { - var array = [], nextPos; - for (var pos = from; pos < to; pos = nextPos) { - var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); - nextPos = pos + view.size; - array.push(view); - } - return array; - } - - // Updates the display.view data structure for a given change to the - // document. From and to are in pre-change coordinates. Lendiff is - // the amount of lines added or subtracted by the change. This is - // used for changes that span multiple lines, or change the way - // lines are divided into visual lines. regLineChange (below) - // registers single-line changes. - function regChange(cm, from, to, lendiff) { - if (from == null) from = cm.doc.first; - if (to == null) to = cm.doc.first + cm.doc.size; - if (!lendiff) lendiff = 0; - - var display = cm.display; - if (lendiff && to < display.viewTo && - (display.updateLineNumbers == null || display.updateLineNumbers > from)) - display.updateLineNumbers = from; - - cm.curOp.viewChanged = true; - - if (from >= display.viewTo) { // Change after - if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) - resetView(cm); - } else if (to <= display.viewFrom) { // Change before - if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { - resetView(cm); - } else { - display.viewFrom += lendiff; - display.viewTo += lendiff; - } - } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap - resetView(cm); - } else if (from <= display.viewFrom) { // Top overlap - var cut = viewCuttingPoint(cm, to, to + lendiff, 1); - if (cut) { - display.view = display.view.slice(cut.index); - display.viewFrom = cut.lineN; - display.viewTo += lendiff; - } else { - resetView(cm); - } - } else if (to >= display.viewTo) { // Bottom overlap - var cut = viewCuttingPoint(cm, from, from, -1); - if (cut) { - display.view = display.view.slice(0, cut.index); - display.viewTo = cut.lineN; - } else { - resetView(cm); - } - } else { // Gap in the middle - var cutTop = viewCuttingPoint(cm, from, from, -1); - var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); - if (cutTop && cutBot) { - display.view = display.view.slice(0, cutTop.index) - .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) - .concat(display.view.slice(cutBot.index)); - display.viewTo += lendiff; - } else { - resetView(cm); - } - } - - var ext = display.externalMeasured; - if (ext) { - if (to < ext.lineN) - ext.lineN += lendiff; - else if (from < ext.lineN + ext.size) - display.externalMeasured = null; - } - } - - // Register a change to a single line. Type must be one of "text", - // "gutter", "class", "widget" - function regLineChange(cm, line, type) { - cm.curOp.viewChanged = true; - var display = cm.display, ext = cm.display.externalMeasured; - if (ext && line >= ext.lineN && line < ext.lineN + ext.size) - display.externalMeasured = null; - - if (line < display.viewFrom || line >= display.viewTo) return; - var lineView = display.view[findViewIndex(cm, line)]; - if (lineView.node == null) return; - var arr = lineView.changes || (lineView.changes = []); - if (indexOf(arr, type) == -1) arr.push(type); - } - - // Clear the view. - function resetView(cm) { - cm.display.viewFrom = cm.display.viewTo = cm.doc.first; - cm.display.view = []; - cm.display.viewOffset = 0; - } - - // Find the view element corresponding to a given line. Return null - // when the line isn't visible. - function findViewIndex(cm, n) { - if (n >= cm.display.viewTo) return null; - n -= cm.display.viewFrom; - if (n < 0) return null; - var view = cm.display.view; - for (var i = 0; i < view.length; i++) { - n -= view[i].size; - if (n < 0) return i; - } - } - - function viewCuttingPoint(cm, oldN, newN, dir) { - var index = findViewIndex(cm, oldN), diff, view = cm.display.view; - if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) - return { index: index, lineN: newN }; - for (var i = 0, n = cm.display.viewFrom; i < index; i++) - n += view[i].size; - if (n != oldN) { - if (dir > 0) { - if (index == view.length - 1) return null; - diff = (n + view[index].size) - oldN; - index++; - } else { - diff = n - oldN; - } - oldN += diff; newN += diff; - } - while (visualLineNo(cm.doc, newN) != newN) { - if (index == (dir < 0 ? 0 : view.length - 1)) return null; - newN += dir * view[index - (dir < 0 ? 1 : 0)].size; - index += dir; - } - return { index: index, lineN: newN }; - } - - // Force the view to cover a given range, adding empty view element - // or clipping off existing ones as needed. - function adjustView(cm, from, to) { - var display = cm.display, view = display.view; - if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { - display.view = buildViewArray(cm, from, to); - display.viewFrom = from; - } else { - if (display.viewFrom > from) - display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); - else if (display.viewFrom < from) - display.view = display.view.slice(findViewIndex(cm, from)); - display.viewFrom = from; - if (display.viewTo < to) - display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); - else if (display.viewTo > to) - display.view = display.view.slice(0, findViewIndex(cm, to)); - } - display.viewTo = to; - } - - // Count the number of lines in the view whose DOM representation is - // out of date (or nonexistent). - function countDirtyView(cm) { - var view = cm.display.view, dirty = 0; - for (var i = 0; i < view.length; i++) { - var lineView = view[i]; - if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty; - } - return dirty; - } - - // EVENT HANDLERS - - // Attach the necessary event handlers when initializing the editor - function registerEventHandlers(cm) { - var d = cm.display; - on(d.scroller, "mousedown", operation(cm, onMouseDown)); - // Older IE's will not fire a second mousedown for a double click - if (ie && ie_version < 11) - on(d.scroller, "dblclick", operation(cm, function (e) { - if (signalDOMEvent(cm, e)) return; - var pos = posFromMouse(cm, e); - if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; - e_preventDefault(e); - var word = cm.findWordAt(pos); - extendSelection(cm.doc, word.anchor, word.head); - })); - else - on(d.scroller, "dblclick", function (e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); - // Some browsers fire contextmenu *after* opening the menu, at - // which point we can't mess with it anymore. Context menu is - // handled in onMouseDown for these browsers. - if (!captureRightClick) on(d.scroller, "contextmenu", function (e) { onContextMenu(cm, e); }); - - // Used to suppress mouse event handling when a touch happens - var touchFinished, prevTouch = { end: 0 }; - function finishTouch() { - if (d.activeTouch) { - touchFinished = setTimeout(function () { d.activeTouch = null; }, 1000); - prevTouch = d.activeTouch; - prevTouch.end = +new Date; - } - }; - function isMouseLikeTouchEvent(e) { - if (e.touches.length != 1) return false; - var touch = e.touches[0]; - return touch.radiusX <= 1 && touch.radiusY <= 1; - } - function farAway(touch, other) { - if (other.left == null) return true; - var dx = other.left - touch.left, dy = other.top - touch.top; - return dx * dx + dy * dy > 20 * 20; - } - on(d.scroller, "touchstart", function (e) { - if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) { - clearTimeout(touchFinished); - var now = +new Date; - d.activeTouch = { - start: now, moved: false, - prev: now - prevTouch.end <= 300 ? prevTouch : null - }; - if (e.touches.length == 1) { - d.activeTouch.left = e.touches[0].pageX; - d.activeTouch.top = e.touches[0].pageY; - } - } - }); - on(d.scroller, "touchmove", function () { - if (d.activeTouch) d.activeTouch.moved = true; - }); - on(d.scroller, "touchend", function (e) { - var touch = d.activeTouch; - if (touch && !eventInWidget(d, e) && touch.left != null && - !touch.moved && new Date - touch.start < 300) { - var pos = cm.coordsChar(d.activeTouch, "page"), range; - if (!touch.prev || farAway(touch, touch.prev)) // Single tap - range = new Range(pos, pos); - else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap - range = cm.findWordAt(pos); - else // Triple tap - range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); - cm.setSelection(range.anchor, range.head); - cm.focus(); - e_preventDefault(e); - } - finishTouch(); - }); - on(d.scroller, "touchcancel", finishTouch); - - // Sync scrolling between fake scrollbars and real scrollable - // area, ensure viewport is updated when scrolling. - on(d.scroller, "scroll", function () { - if (d.scroller.clientHeight) { - setScrollTop(cm, d.scroller.scrollTop); - setScrollLeft(cm, d.scroller.scrollLeft, true); - signal(cm, "scroll", cm); - } - }); - - // Listen to wheel events in order to try and update the viewport on time. - on(d.scroller, "mousewheel", function (e) { onScrollWheel(cm, e); }); - on(d.scroller, "DOMMouseScroll", function (e) { onScrollWheel(cm, e); }); - - // Prevent wrapper from ever scrolling - on(d.wrapper, "scroll", function () { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); - - d.dragFunctions = { - enter: function (e) { if (!signalDOMEvent(cm, e)) e_stop(e); }, - over: function (e) { if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); } }, - start: function (e) { onDragStart(cm, e); }, - drop: operation(cm, onDrop), - leave: function (e) { if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); } } - }; - - var inp = d.input.getField(); - on(inp, "keyup", function (e) { onKeyUp.call(cm, e); }); - on(inp, "keydown", operation(cm, onKeyDown)); - on(inp, "keypress", operation(cm, onKeyPress)); - on(inp, "focus", bind(onFocus, cm)); - on(inp, "blur", bind(onBlur, cm)); - } - - function dragDropChanged(cm, value, old) { - var wasOn = old && old != CodeMirror.Init; - if (!value != !wasOn) { - var funcs = cm.display.dragFunctions; - var toggle = value ? on : off; - toggle(cm.display.scroller, "dragstart", funcs.start); - toggle(cm.display.scroller, "dragenter", funcs.enter); - toggle(cm.display.scroller, "dragover", funcs.over); - toggle(cm.display.scroller, "dragleave", funcs.leave); - toggle(cm.display.scroller, "drop", funcs.drop); - } - } - - // Called when the window resizes - function onResize(cm) { - var d = cm.display; - if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth) - return; - // Might be a text scaling operation, clear size caches. - d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; - d.scrollbarsClipped = false; - cm.setSize(); - } - - // MOUSE EVENTS - - // Return true when the given mouse event happened in a widget - function eventInWidget(display, e) { - for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { - if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || - (n.parentNode == display.sizer && n != display.mover)) - return true; - } - } - - // Given a mouse event, find the corresponding position. If liberal - // is false, it checks whether a gutter or scrollbar was clicked, - // and returns null if it was. forRect is used by rectangular - // selections, and tries to estimate a character position even for - // coordinates beyond the right of the text. - function posFromMouse(cm, e, liberal, forRect) { - var display = cm.display; - if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null; - - var x, y, space = display.lineSpace.getBoundingClientRect(); - // Fails unpredictably on IE[67] when mouse is dragged around quickly. - try { x = e.clientX - space.left; y = e.clientY - space.top; } - catch (e) { return null; } - var coords = coordsChar(cm, x, y), line; - if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { - var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; - coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); - } - return coords; - } - - // A mouse down can be a single click, double click, triple click, - // start of selection drag, start of text drag, new cursor - // (ctrl-click), rectangle drag (alt-drag), or xwin - // middle-click-paste. Or it might be a click on something we should - // not interfere with, such as a scrollbar or widget. - function onMouseDown(e) { - var cm = this, display = cm.display; - if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return; - display.shift = e.shiftKey; - - if (eventInWidget(display, e)) { - if (!webkit) { - // Briefly turn off draggability, to allow widgets to do - // normal dragging things. - display.scroller.draggable = false; - setTimeout(function () { display.scroller.draggable = true; }, 100); - } - return; - } - if (clickInGutter(cm, e)) return; - var start = posFromMouse(cm, e); - window.focus(); - - switch (e_button(e)) { - case 1: - // #3261: make sure, that we're not starting a second selection - if (cm.state.selectingText) - cm.state.selectingText(e); - else if (start) - leftButtonDown(cm, e, start); - else if (e_target(e) == display.scroller) - e_preventDefault(e); - break; - case 2: - if (webkit) cm.state.lastMiddleDown = +new Date; - if (start) extendSelection(cm.doc, start); - setTimeout(function () { display.input.focus(); }, 20); - e_preventDefault(e); - break; - case 3: - if (captureRightClick) onContextMenu(cm, e); - else delayBlurEvent(cm); - break; - } - } - - var lastClick, lastDoubleClick; - function leftButtonDown(cm, e, start) { - if (ie) setTimeout(bind(ensureFocus, cm), 0); - else cm.curOp.focus = activeElt(); - - var now = +new Date, type; - if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { - type = "triple"; - } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { - type = "double"; - lastDoubleClick = { time: now, pos: start }; - } else { - type = "single"; - lastClick = { time: now, pos: start }; - } - - var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained; - if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && - type == "single" && (contained = sel.contains(start)) > -1 && - (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) && - (cmp(contained.to(), start) > 0 || start.xRel < 0)) - leftButtonStartDrag(cm, e, start, modifier); - else - leftButtonSelect(cm, e, start, type, modifier); - } - - // Start a text drag. When it ends, see if any dragging actually - // happen, and treat as a click if it didn't. - function leftButtonStartDrag(cm, e, start, modifier) { - var display = cm.display, startTime = +new Date; - var dragEnd = operation(cm, function (e2) { - if (webkit) display.scroller.draggable = false; - cm.state.draggingText = false; - off(document, "mouseup", dragEnd); - off(display.scroller, "drop", dragEnd); - if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { - e_preventDefault(e2); - if (!modifier && +new Date - 200 < startTime) - extendSelection(cm.doc, start); - // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) - if (webkit || ie && ie_version == 9) - setTimeout(function () { document.body.focus(); display.input.focus(); }, 20); - else - display.input.focus(); - } - }); - // Let the drag handler handle this. - if (webkit) display.scroller.draggable = true; - cm.state.draggingText = dragEnd; - dragEnd.copy = mac ? e.altKey : e.ctrlKey - // IE's approach to draggable - if (display.scroller.dragDrop) display.scroller.dragDrop(); - on(document, "mouseup", dragEnd); - on(display.scroller, "drop", dragEnd); - } - - // Normal selection, as opposed to text dragging. - function leftButtonSelect(cm, e, start, type, addNew) { - var display = cm.display, doc = cm.doc; - e_preventDefault(e); - - var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; - if (addNew && !e.shiftKey) { - ourIndex = doc.sel.contains(start); - if (ourIndex > -1) - ourRange = ranges[ourIndex]; - else - ourRange = new Range(start, start); - } else { - ourRange = doc.sel.primary(); - ourIndex = doc.sel.primIndex; - } - - if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) { - type = "rect"; - if (!addNew) ourRange = new Range(start, start); - start = posFromMouse(cm, e, true, true); - ourIndex = -1; - } else if (type == "double") { - var word = cm.findWordAt(start); - if (cm.display.shift || doc.extend) - ourRange = extendRange(doc, ourRange, word.anchor, word.head); - else - ourRange = word; - } else if (type == "triple") { - var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); - if (cm.display.shift || doc.extend) - ourRange = extendRange(doc, ourRange, line.anchor, line.head); - else - ourRange = line; - } else { - ourRange = extendRange(doc, ourRange, start); - } - - if (!addNew) { - ourIndex = 0; - setSelection(doc, new Selection([ourRange], 0), sel_mouse); - startSel = doc.sel; - } else if (ourIndex == -1) { - ourIndex = ranges.length; - setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex), - { scroll: false, origin: "*mouse" }); - } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) { - setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), - { scroll: false, origin: "*mouse" }); - startSel = doc.sel; - } else { - replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); - } - - var lastPos = start; - function extendTo(pos) { - if (cmp(lastPos, pos) == 0) return; - lastPos = pos; - - if (type == "rect") { - var ranges = [], tabSize = cm.options.tabSize; - var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); - var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); - var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); - for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); - line <= end; line++) { - var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); - if (left == right) - ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); - else if (text.length > leftPos) - ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); - } - if (!ranges.length) ranges.push(new Range(start, start)); - setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), - { origin: "*mouse", scroll: false }); - cm.scrollIntoView(pos); - } else { - var oldRange = ourRange; - var anchor = oldRange.anchor, head = pos; - if (type != "single") { - if (type == "double") - var range = cm.findWordAt(pos); - else - var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); - if (cmp(range.anchor, anchor) > 0) { - head = range.head; - anchor = minPos(oldRange.from(), range.anchor); - } else { - head = range.anchor; - anchor = maxPos(oldRange.to(), range.head); - } - } - var ranges = startSel.ranges.slice(0); - ranges[ourIndex] = new Range(clipPos(doc, anchor), head); - setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse); - } - } - - var editorSize = display.wrapper.getBoundingClientRect(); - // Used to ensure timeout re-tries don't fire when another extend - // happened in the meantime (clearTimeout isn't reliable -- at - // least on Chrome, the timeouts still happen even when cleared, - // if the clear happens after their scheduled firing time). - var counter = 0; - - function extend(e) { - var curCount = ++counter; - var cur = posFromMouse(cm, e, true, type == "rect"); - if (!cur) return; - if (cmp(cur, lastPos) != 0) { - cm.curOp.focus = activeElt(); - extendTo(cur); - var visible = visibleLines(display, doc); - if (cur.line >= visible.to || cur.line < visible.from) - setTimeout(operation(cm, function () { if (counter == curCount) extend(e); }), 150); - } else { - var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; - if (outside) setTimeout(operation(cm, function () { - if (counter != curCount) return; - display.scroller.scrollTop += outside; - extend(e); - }), 50); - } - } - - function done(e) { - cm.state.selectingText = false; - counter = Infinity; - e_preventDefault(e); - display.input.focus(); - off(document, "mousemove", move); - off(document, "mouseup", up); - doc.history.lastSelOrigin = null; - } - - var move = operation(cm, function (e) { - if (!e_button(e)) done(e); - else extend(e); - }); - var up = operation(cm, done); - cm.state.selectingText = up; - on(document, "mousemove", move); - on(document, "mouseup", up); - } - - // Determines whether an event happened in the gutter, and fires the - // handlers for the corresponding event. - function gutterEvent(cm, e, type, prevent) { - try { var mX = e.clientX, mY = e.clientY; } - catch (e) { return false; } - if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false; - if (prevent) e_preventDefault(e); - - var display = cm.display; - var lineBox = display.lineDiv.getBoundingClientRect(); - - if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); - mY -= lineBox.top - display.viewOffset; - - for (var i = 0; i < cm.options.gutters.length; ++i) { - var g = display.gutters.childNodes[i]; - if (g && g.getBoundingClientRect().right >= mX) { - var line = lineAtHeight(cm.doc, mY); - var gutter = cm.options.gutters[i]; - signal(cm, type, cm, line, gutter, e); - return e_defaultPrevented(e); - } - } - } - - function clickInGutter(cm, e) { - return gutterEvent(cm, e, "gutterClick", true); - } - - // Kludge to work around strange IE behavior where it'll sometimes - // re-fire a series of drag-related events right after the drop (#1551) - var lastDrop = 0; - - function onDrop(e) { - var cm = this; - clearDragCursor(cm); - if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) - return; - e_preventDefault(e); - if (ie) lastDrop = +new Date; - var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; - if (!pos || cm.isReadOnly()) return; - // Might be a file drop, in which case we simply extract the text - // and insert it. - if (files && files.length && window.FileReader && window.File) { - var n = files.length, text = Array(n), read = 0; - var loadFile = function (file, i) { - if (cm.options.allowDropFileTypes && - indexOf(cm.options.allowDropFileTypes, file.type) == -1) - return; - - var reader = new FileReader; - reader.onload = operation(cm, function () { - var content = reader.result; - if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = ""; - text[i] = content; - if (++read == n) { - pos = clipPos(cm.doc, pos); - var change = { - from: pos, to: pos, - text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), - origin: "paste" - }; - makeChange(cm.doc, change); - setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); - } - }); - reader.readAsText(file); - }; - for (var i = 0; i < n; ++i) loadFile(files[i], i); - } else { // Normal drop - // Don't do a replace if the drop happened inside of the selected text. - if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { - cm.state.draggingText(e); - // Ensure the editor is re-focused - setTimeout(function () { cm.display.input.focus(); }, 20); - return; - } - try { - var text = e.dataTransfer.getData("Text"); - if (text) { - if (cm.state.draggingText && !cm.state.draggingText.copy) - var selected = cm.listSelections(); - setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); - if (selected) for (var i = 0; i < selected.length; ++i) - replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); - cm.replaceSelection(text, "around", "paste"); - cm.display.input.focus(); - } - } - catch (e) { } - } - } - - function onDragStart(cm, e) { - if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } - if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; - - e.dataTransfer.setData("Text", cm.getSelection()); - e.dataTransfer.effectAllowed = "copyMove" - - // Use dummy image instead of default browsers image. - // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. - if (e.dataTransfer.setDragImage && !safari) { - var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); - img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; - if (presto) { - img.width = img.height = 1; - cm.display.wrapper.appendChild(img); - // Force a relayout, or Opera won't use our image for some obscure reason - img._top = img.offsetTop; - } - e.dataTransfer.setDragImage(img, 0, 0); - if (presto) img.parentNode.removeChild(img); - } - } - - function onDragOver(cm, e) { - var pos = posFromMouse(cm, e); - if (!pos) return; - var frag = document.createDocumentFragment(); - drawSelectionCursor(cm, pos, frag); - if (!cm.display.dragCursor) { - cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); - cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); - } - removeChildrenAndAdd(cm.display.dragCursor, frag); - } - - function clearDragCursor(cm) { - if (cm.display.dragCursor) { - cm.display.lineSpace.removeChild(cm.display.dragCursor); - cm.display.dragCursor = null; - } - } - - // SCROLL EVENTS - - // Sync the scrollable area and scrollbars, ensure the viewport - // covers the visible area. - function setScrollTop(cm, val) { - if (Math.abs(cm.doc.scrollTop - val) < 2) return; - cm.doc.scrollTop = val; - if (!gecko) updateDisplaySimple(cm, { top: val }); - if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; - cm.display.scrollbars.setScrollTop(val); - if (gecko) updateDisplaySimple(cm); - startWorker(cm, 100); - } - // Sync scroller and scrollbar, ensure the gutter elements are - // aligned. - function setScrollLeft(cm, val, isScroller) { - if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; - val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); - cm.doc.scrollLeft = val; - alignHorizontally(cm); - if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; - cm.display.scrollbars.setScrollLeft(val); - } - - // Since the delta values reported on mouse wheel events are - // unstandardized between browsers and even browser versions, and - // generally horribly unpredictable, this code starts by measuring - // the scroll effect that the first few mouse wheel events have, - // and, from that, detects the way it can convert deltas to pixel - // offsets afterwards. - // - // The reason we want to know the amount a wheel event will scroll - // is that it gives us a chance to update the display before the - // actual scrolling happens, reducing flickering. - - var wheelSamples = 0, wheelPixelsPerUnit = null; - // Fill in a browser-detected starting value on browsers where we - // know one. These don't have to be accurate -- the result of them - // being wrong would just be a slight flicker on the first wheel - // scroll (if it is large enough). - if (ie) wheelPixelsPerUnit = -.53; - else if (gecko) wheelPixelsPerUnit = 15; - else if (chrome) wheelPixelsPerUnit = -.7; - else if (safari) wheelPixelsPerUnit = -1 / 3; - - var wheelEventDelta = function (e) { - var dx = e.wheelDeltaX, dy = e.wheelDeltaY; - if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; - if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; - else if (dy == null) dy = e.wheelDelta; - return { x: dx, y: dy }; - }; - CodeMirror.wheelEventPixels = function (e) { - var delta = wheelEventDelta(e); - delta.x *= wheelPixelsPerUnit; - delta.y *= wheelPixelsPerUnit; - return delta; - }; - - function onScrollWheel(cm, e) { - var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; - - var display = cm.display, scroll = display.scroller; - // Quit if there's nothing to scroll here - var canScrollX = scroll.scrollWidth > scroll.clientWidth; - var canScrollY = scroll.scrollHeight > scroll.clientHeight; - if (!(dx && canScrollX || dy && canScrollY)) return; - - // Webkit browsers on OS X abort momentum scrolls when the target - // of the scroll event is removed from the scrollable element. - // This hack (see related code in patchDisplay) makes sure the - // element is kept around. - if (dy && mac && webkit) { - outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { - for (var i = 0; i < view.length; i++) { - if (view[i].node == cur) { - cm.display.currentWheelTarget = cur; - break outer; - } - } - } - } - - // On some browsers, horizontal scrolling will cause redraws to - // happen before the gutter has been realigned, causing it to - // wriggle around in a most unseemly way. When we have an - // estimated pixels/delta value, we just handle horizontal - // scrolling entirely here. It'll be slightly off from native, but - // better than glitching out. - if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { - if (dy && canScrollY) - setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); - setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); - // Only prevent default scrolling if vertical scrolling is - // actually possible. Otherwise, it causes vertical scroll - // jitter on OSX trackpads when deltaX is small and deltaY - // is large (issue #3579) - if (!dy || (dy && canScrollY)) - e_preventDefault(e); - display.wheelStartX = null; // Abort measurement, if in progress - return; - } - - // 'Project' the visible viewport to cover the area that is being - // scrolled into view (if we know enough to estimate it). - if (dy && wheelPixelsPerUnit != null) { - var pixels = dy * wheelPixelsPerUnit; - var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; - if (pixels < 0) top = Math.max(0, top + pixels - 50); - else bot = Math.min(cm.doc.height, bot + pixels + 50); - updateDisplaySimple(cm, { top: top, bottom: bot }); - } - - if (wheelSamples < 20) { - if (display.wheelStartX == null) { - display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; - display.wheelDX = dx; display.wheelDY = dy; - setTimeout(function () { - if (display.wheelStartX == null) return; - var movedX = scroll.scrollLeft - display.wheelStartX; - var movedY = scroll.scrollTop - display.wheelStartY; - var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || - (movedX && display.wheelDX && movedX / display.wheelDX); - display.wheelStartX = display.wheelStartY = null; - if (!sample) return; - wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); - ++wheelSamples; - }, 200); - } else { - display.wheelDX += dx; display.wheelDY += dy; - } - } - } - - // KEY EVENTS - - // Run a handler that was bound to a key. - function doHandleBinding(cm, bound, dropShift) { - if (typeof bound == "string") { - bound = commands[bound]; - if (!bound) return false; - } - // Ensure previous input has been read, so that the handler sees a - // consistent view of the document - cm.display.input.ensurePolled(); - var prevShift = cm.display.shift, done = false; - try { - if (cm.isReadOnly()) cm.state.suppressEdits = true; - if (dropShift) cm.display.shift = false; - done = bound(cm) != Pass; - } finally { - cm.display.shift = prevShift; - cm.state.suppressEdits = false; - } - return done; - } - - function lookupKeyForEditor(cm, name, handle) { - for (var i = 0; i < cm.state.keyMaps.length; i++) { - var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); - if (result) return result; - } - return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) - || lookupKey(name, cm.options.keyMap, handle, cm); - } - - var stopSeq = new Delayed; - function dispatchKey(cm, name, e, handle) { - var seq = cm.state.keySeq; - if (seq) { - if (isModifierKey(name)) return "handled"; - stopSeq.set(50, function () { - if (cm.state.keySeq == seq) { - cm.state.keySeq = null; - cm.display.input.reset(); - } - }); - name = seq + " " + name; - } - var result = lookupKeyForEditor(cm, name, handle); - - if (result == "multi") - cm.state.keySeq = name; - if (result == "handled") - signalLater(cm, "keyHandled", cm, name, e); - - if (result == "handled" || result == "multi") { - e_preventDefault(e); - restartBlink(cm); - } - - if (seq && !result && /\'$/.test(name)) { - e_preventDefault(e); + ++doc.frontier; + if (+new Date > end) { + startWorker(cm, cm.options.workDelay); return true; } - return !!result; + }); + if (changedLines.length) runInOp(cm, function () { + for (var i = 0; i < changedLines.length; i++) + regLineChange(cm, changedLines[i], "text"); + }); + } + + // Finds the line to start with when starting a parse. Tries to + // find a line with a stateAfter, so that it can start with a + // valid state. If that fails, it returns the line with the + // smallest indentation, which tends to need the least context to + // parse correctly. + function findStartLine(cm, n, precise) { + var minindent, minline, doc = cm.doc; + var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); + for (var search = n; search > lim; --search) { + if (search <= doc.first) return doc.first; + var line = getLine(doc, search - 1); + if (line.stateAfter && (!precise || search <= doc.frontier)) return search; + var indented = countColumn(line.text, null, cm.options.tabSize); + if (minline == null || minindent > indented) { + minline = search - 1; + minindent = indented; + } + } + return minline; + } + + function getStateBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display; + if (!doc.mode.startState) return true; + var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos - 1).stateAfter; + if (!state) state = startState(doc.mode); + else state = copyState(doc.mode, state); + doc.iter(pos, n, function (line) { + processLine(cm, line.text, state); + var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo; + line.stateAfter = save ? copyState(doc.mode, state) : null; + ++pos; + }); + if (precise) doc.frontier = pos; + return state; + } + + // POSITION MEASUREMENT + + function paddingTop(display) { return display.lineSpace.offsetTop; } + function paddingVert(display) { return display.mover.offsetHeight - display.lineSpace.offsetHeight; } + function paddingH(display) { + if (display.cachedPaddingH) return display.cachedPaddingH; + var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); + var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; + var data = { left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight) }; + if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data; + return data; + } + + function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; } + function displayWidth(cm) { + return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth; + } + function displayHeight(cm) { + return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight; + } + + // Ensure the lineView.wrapping.heights array is populated. This is + // an array of bottom offsets for the lines that make up a drawn + // line. When lineWrapping is on, there might be more than one + // height. + function ensureLineHeights(cm, lineView, rect) { + var wrapping = cm.options.lineWrapping; + var curWidth = wrapping && displayWidth(cm); + if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { + var heights = lineView.measure.heights = []; + if (wrapping) { + lineView.measure.width = curWidth; + var rects = lineView.text.firstChild.getClientRects(); + for (var i = 0; i < rects.length - 1; i++) { + var cur = rects[i], next = rects[i + 1]; + if (Math.abs(cur.bottom - next.bottom) > 2) + heights.push((cur.bottom + next.top) / 2 - rect.top); + } + } + heights.push(rect.bottom - rect.top); + } + } + + // Find a line map (mapping character offsets to text nodes) and a + // measurement cache for the given line number. (A line view might + // contain multiple lines when collapsed ranges are present.) + function mapFromLineView(lineView, line, lineN) { + if (lineView.line == line) + return { map: lineView.measure.map, cache: lineView.measure.cache }; + for (var i = 0; i < lineView.rest.length; i++) + if (lineView.rest[i] == line) + return { map: lineView.measure.maps[i], cache: lineView.measure.caches[i] }; + for (var i = 0; i < lineView.rest.length; i++) + if (lineNo(lineView.rest[i]) > lineN) + return { map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true }; + } + + // Render a line into the hidden node display.externalMeasured. Used + // when measurement is needed for a line that's not in the viewport. + function updateExternalMeasurement(cm, line) { + line = visualLine(line); + var lineN = lineNo(line); + var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); + view.lineN = lineN; + var built = view.built = buildLineContent(cm, view); + view.text = built.pre; + removeChildrenAndAdd(cm.display.lineMeasure, built.pre); + return view; + } + + // Get a {top, bottom, left, right} box (in line-local coordinates) + // for a given character. + function measureChar(cm, line, ch, bias) { + return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias); + } + + // Find a line view that corresponds to the given line number. + function findViewForLine(cm, lineN) { + if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) + return cm.display.view[findViewIndex(cm, lineN)]; + var ext = cm.display.externalMeasured; + if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) + return ext; + } + + // Measurement can be split in two steps, the set-up work that + // applies to the whole line, and the measurement of the actual + // character. Functions like coordsChar, that need to do a lot of + // measurements in a row, can thus ensure that the set-up work is + // only done once. + function prepareMeasureForLine(cm, line) { + var lineN = lineNo(line); + var view = findViewForLine(cm, lineN); + if (view && !view.text) { + view = null; + } else if (view && view.changes) { + updateLineForChanges(cm, view, lineN, getDimensions(cm)); + cm.curOp.forceUpdate = true; + } + if (!view) + view = updateExternalMeasurement(cm, line); + + var info = mapFromLineView(view, line, lineN); + return { + line: line, view: view, rect: null, + map: info.map, cache: info.cache, before: info.before, + hasHeights: false + }; + } + + // Given a prepared measurement object, measures the position of an + // actual character (or fetches it from the cache). + function measureCharPrepared(cm, prepared, ch, bias, varHeight) { + if (prepared.before) ch = -1; + var key = ch + (bias || ""), found; + if (prepared.cache.hasOwnProperty(key)) { + found = prepared.cache[key]; + } else { + if (!prepared.rect) + prepared.rect = prepared.view.text.getBoundingClientRect(); + if (!prepared.hasHeights) { + ensureLineHeights(cm, prepared.view, prepared.rect); + prepared.hasHeights = true; + } + found = measureCharInner(cm, prepared, ch, bias); + if (!found.bogus) prepared.cache[key] = found; + } + return { + left: found.left, right: found.right, + top: varHeight ? found.rtop : found.top, + bottom: varHeight ? found.rbottom : found.bottom + }; + } + + var nullRect = { left: 0, right: 0, top: 0, bottom: 0 }; + + function nodeAndOffsetInLineMap(map, ch, bias) { + var node, start, end, collapse; + // First, search the line map for the text node corresponding to, + // or closest to, the target character. + for (var i = 0; i < map.length; i += 3) { + var mStart = map[i], mEnd = map[i + 1]; + if (ch < mStart) { + start = 0; end = 1; + collapse = "left"; + } else if (ch < mEnd) { + start = ch - mStart; + end = start + 1; + } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { + end = mEnd - mStart; + start = end - 1; + if (ch >= mEnd) collapse = "right"; + } + if (start != null) { + node = map[i + 2]; + if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) + collapse = bias; + if (bias == "left" && start == 0) + while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { + node = map[(i -= 3) + 2]; + collapse = "left"; + } + if (bias == "right" && start == mEnd - mStart) + while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { + node = map[(i += 3) + 2]; + collapse = "right"; + } + break; + } + } + return { node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd }; + } + + function getUsefulRect(rects, bias) { + var rect = nullRect + if (bias == "left") for (var i = 0; i < rects.length; i++) { + if ((rect = rects[i]).left != rect.right) break + } else for (var i = rects.length - 1; i >= 0; i--) { + if ((rect = rects[i]).left != rect.right) break + } + return rect + } + + function measureCharInner(cm, prepared, ch, bias) { + var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); + var node = place.node, start = place.start, end = place.end, collapse = place.collapse; + + var rect; + if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. + for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned + while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start; + while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end; + if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) + rect = node.parentNode.getBoundingClientRect(); + else + rect = getUsefulRect(range(node, start, end).getClientRects(), bias) + if (rect.left || rect.right || start == 0) break; + end = start; + start = start - 1; + collapse = "right"; + } + if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect); + } else { // If it is a widget, simply get the box for the whole widget. + if (start > 0) collapse = bias = "right"; + var rects; + if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) + rect = rects[bias == "right" ? rects.length - 1 : 0]; + else + rect = node.getBoundingClientRect(); + } + if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { + var rSpan = node.parentNode.getClientRects()[0]; + if (rSpan) + rect = { left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom }; + else + rect = nullRect; } - // Handle a key from the keydown event. - function handleKeyBinding(cm, e) { - var name = keyName(e, true); - if (!name) return false; + var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; + var mid = (rtop + rbot) / 2; + var heights = prepared.view.measure.heights; + for (var i = 0; i < heights.length - 1; i++) + if (mid < heights[i]) break; + var top = i ? heights[i - 1] : 0, bot = heights[i]; + var result = { + left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, + right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, + top: top, bottom: bot + }; + if (!rect.left && !rect.right) result.bogus = true; + if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } - if (e.shiftKey && !cm.state.keySeq) { - // First try to resolve full name (including 'Shift-'). Failing - // that, see if there is a cursor-motion command (starting with - // 'go') bound to the keyname without 'Shift-'. - return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) - || dispatchKey(cm, name, e, function (b) { - if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) - return doHandleBinding(cm, b); - }); + return result; + } + + // Work around problem with bounding client rects on ranges being + // returned incorrectly when zoomed on IE10 and below. + function maybeUpdateRectForZooming(measure, rect) { + if (!window.screen || screen.logicalXDPI == null || + screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) + return rect; + var scaleX = screen.logicalXDPI / screen.deviceXDPI; + var scaleY = screen.logicalYDPI / screen.deviceYDPI; + return { + left: rect.left * scaleX, right: rect.right * scaleX, + top: rect.top * scaleY, bottom: rect.bottom * scaleY + }; + } + + function clearLineMeasurementCacheFor(lineView) { + if (lineView.measure) { + lineView.measure.cache = {}; + lineView.measure.heights = null; + if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++) + lineView.measure.caches[i] = {}; + } + } + + function clearLineMeasurementCache(cm) { + cm.display.externalMeasure = null; + removeChildren(cm.display.lineMeasure); + for (var i = 0; i < cm.display.view.length; i++) + clearLineMeasurementCacheFor(cm.display.view[i]); + } + + function clearCaches(cm) { + clearLineMeasurementCache(cm); + cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; + if (!cm.options.lineWrapping) cm.display.maxLineChanged = true; + cm.display.lineNumChars = null; + } + + function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; } + function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; } + + // Converts a {top, bottom, left, right} box from line-local + // coordinates into another coordinate system. Context may be one of + // "line", "div" (display.lineDiv), "local"/null (editor), "window", + // or "page". + function intoCoordSystem(cm, lineObj, rect, context) { + if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) { + var size = widgetHeight(lineObj.widgets[i]); + rect.top += size; rect.bottom += size; + } + if (context == "line") return rect; + if (!context) context = "local"; + var yOff = heightAtLine(lineObj); + if (context == "local") yOff += paddingTop(cm.display); + else yOff -= cm.display.viewOffset; + if (context == "page" || context == "window") { + var lOff = cm.display.lineSpace.getBoundingClientRect(); + yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); + var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); + rect.left += xOff; rect.right += xOff; + } + rect.top += yOff; rect.bottom += yOff; + return rect; + } + + // Coverts a box from "div" coords to another coordinate system. + // Context may be "window", "page", "div", or "local"/null. + function fromCoordSystem(cm, coords, context) { + if (context == "div") return coords; + var left = coords.left, top = coords.top; + // First move into "page" coordinate system + if (context == "page") { + left -= pageScrollX(); + top -= pageScrollY(); + } else if (context == "local" || !context) { + var localBox = cm.display.sizer.getBoundingClientRect(); + left += localBox.left; + top += localBox.top; + } + + var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); + return { left: left - lineSpaceBox.left, top: top - lineSpaceBox.top }; + } + + function charCoords(cm, pos, context, lineObj, bias) { + if (!lineObj) lineObj = getLine(cm.doc, pos.line); + return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context); + } + + // Returns a box for a given cursor position, which may have an + // 'other' property containing the position of the secondary cursor + // on a bidi boundary. + function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { + lineObj = lineObj || getLine(cm.doc, pos.line); + if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj); + function get(ch, right) { + var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); + if (right) m.left = m.right; else m.right = m.left; + return intoCoordSystem(cm, lineObj, m, context); + } + function getBidi(ch, partPos) { + var part = order[partPos], right = part.level % 2; + if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) { + part = order[--partPos]; + ch = bidiRight(part) - (part.level % 2 ? 0 : 1); + right = true; + } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) { + part = order[++partPos]; + ch = bidiLeft(part) - part.level % 2; + right = false; + } + if (right && ch == part.to && ch > part.from) return get(ch - 1); + return get(ch, right); + } + var order = getOrder(lineObj), ch = pos.ch; + if (!order) return get(ch); + var partPos = getBidiPartAt(order, ch); + var val = getBidi(ch, partPos); + if (bidiOther != null) val.other = getBidi(ch, bidiOther); + return val; + } + + // Used to cheaply estimate the coordinates for a position. Used for + // intermediate scroll updates. + function estimateCoords(cm, pos) { + var left = 0, pos = clipPos(cm.doc, pos); + if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch; + var lineObj = getLine(cm.doc, pos.line); + var top = heightAtLine(lineObj) + paddingTop(cm.display); + return { left: left, right: left, top: top, bottom: top + lineObj.height }; + } + + // Positions returned by coordsChar contain some extra information. + // xRel is the relative x position of the input coordinates compared + // to the found position (so xRel > 0 means the coordinates are to + // the right of the character position, for example). When outside + // is true, that means the coordinates lie outside the line's + // vertical range. + function PosWithInfo(line, ch, outside, xRel) { + var pos = Pos(line, ch); + pos.xRel = xRel; + if (outside) pos.outside = true; + return pos; + } + + // Compute the character position closest to the given coordinates. + // Input must be lineSpace-local ("div" coordinate system). + function coordsChar(cm, x, y) { + var doc = cm.doc; + y += cm.display.viewOffset; + if (y < 0) return PosWithInfo(doc.first, 0, true, -1); + var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; + if (lineN > last) + return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1); + if (x < 0) x = 0; + + var lineObj = getLine(doc, lineN); + for (; ;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y); + var merged = collapsedSpanAtEnd(lineObj); + var mergedPos = merged && merged.find(0, true); + if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0)) + lineN = lineNo(lineObj = mergedPos.to.line); + else + return found; + } + } + + function coordsCharInner(cm, lineObj, lineNo, x, y) { + var innerOff = y - heightAtLine(lineObj); + var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth; + var preparedMeasure = prepareMeasureForLine(cm, lineObj); + + function getX(ch) { + var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure); + wrongLine = true; + if (innerOff > sp.bottom) return sp.left - adjust; + else if (innerOff < sp.top) return sp.left + adjust; + else wrongLine = false; + return sp.left; + } + + var bidi = getOrder(lineObj), dist = lineObj.text.length; + var from = lineLeft(lineObj), to = lineRight(lineObj); + var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine; + + if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1); + // Do a binary search between these bounds. + for (; ;) { + if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) { + var ch = x < fromX || x - fromX <= toX - x ? from : to; + var outside = ch == from ? fromOutside : toOutside + var xDiff = x - (ch == from ? fromX : toX); + // This is a kludge to handle the case where the coordinates + // are after a line-wrapped line. We should replace it with a + // more general handling of cursor positions around line + // breaks. (Issue #4078) + if (toOutside && !bidi && !/\s/.test(lineObj.text.charAt(ch)) && xDiff > 0 && + ch < lineObj.text.length && preparedMeasure.view.measure.heights.length > 1) { + var charSize = measureCharPrepared(cm, preparedMeasure, ch, "right"); + if (innerOff <= charSize.bottom && innerOff >= charSize.top && Math.abs(x - charSize.right) < xDiff) { + outside = false + ch++ + xDiff = x - charSize.right + } + } + while (isExtendingChar(lineObj.text.charAt(ch))) ++ch; + var pos = PosWithInfo(lineNo, ch, outside, xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0); + return pos; + } + var step = Math.ceil(dist / 2), middle = from + step; + if (bidi) { + middle = from; + for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1); + } + var middleX = getX(middle); + if (middleX > x) { to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step; } + else { from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step; } + } + } + + var measureText; + // Compute the default text height. + function textHeight(display) { + if (display.cachedTextHeight != null) return display.cachedTextHeight; + if (measureText == null) { + measureText = elt("pre"); + // Measure a bunch of lines, for browsers that compute + // fractional heights. + for (var i = 0; i < 49; ++i) { + measureText.appendChild(document.createTextNode("x")); + measureText.appendChild(elt("br")); + } + measureText.appendChild(document.createTextNode("x")); + } + removeChildrenAndAdd(display.measure, measureText); + var height = measureText.offsetHeight / 50; + if (height > 3) display.cachedTextHeight = height; + removeChildren(display.measure); + return height || 1; + } + + // Compute the default character width. + function charWidth(display) { + if (display.cachedCharWidth != null) return display.cachedCharWidth; + var anchor = elt("span", "xxxxxxxxxx"); + var pre = elt("pre", [anchor]); + removeChildrenAndAdd(display.measure, pre); + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; + if (width > 2) display.cachedCharWidth = width; + return width || 10; + } + + // OPERATIONS + + // Operations are used to wrap a series of changes to the editor + // state in such a way that each change won't have to update the + // cursor and display (which would be awkward, slow, and + // error-prone). Instead, display updates are batched and then all + // combined and executed at once. + + var operationGroup = null; + + var nextOpId = 0; + // Start a new operation. + function startOperation(cm) { + cm.curOp = { + cm: cm, + viewChanged: false, // Flag that indicates that lines might need to be redrawn + startHeight: cm.doc.height, // Used to detect need to update scrollbar + forceUpdate: false, // Used to force a redraw + updateInput: null, // Whether to reset the input textarea + typing: false, // Whether this reset should be careful to leave existing text (for compositing) + changeObjs: null, // Accumulated changes, for firing change events + cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on + cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already + selectionChanged: false, // Whether the selection needs to be redrawn + updateMaxLine: false, // Set when the widest line needs to be determined anew + scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet + scrollToPos: null, // Used to scroll to a specific position + focus: false, + id: ++nextOpId // Unique ID + }; + if (operationGroup) { + operationGroup.ops.push(cm.curOp); + } else { + cm.curOp.ownsGroup = operationGroup = { + ops: [cm.curOp], + delayedCallbacks: [] + }; + } + } + + function fireCallbacksForOps(group) { + // Calls delayed callbacks and cursorActivity handlers until no + // new ones appear + var callbacks = group.delayedCallbacks, i = 0; + do { + for (; i < callbacks.length; i++) + callbacks[i].call(null); + for (var j = 0; j < group.ops.length; j++) { + var op = group.ops[j]; + if (op.cursorActivityHandlers) + while (op.cursorActivityCalled < op.cursorActivityHandlers.length) + op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); + } + } while (i < callbacks.length); + } + + // Finish an operation, updating the display and signalling delayed events + function endOperation(cm) { + var op = cm.curOp, group = op.ownsGroup; + if (!group) return; + + try { fireCallbacksForOps(group); } + finally { + operationGroup = null; + for (var i = 0; i < group.ops.length; i++) + group.ops[i].cm.curOp = null; + endOperations(group); + } + } + + // The DOM updates done when an operation finishes are batched so + // that the minimum number of relayouts are required. + function endOperations(group) { + var ops = group.ops; + for (var i = 0; i < ops.length; i++) // Read DOM + endOperation_R1(ops[i]); + for (var i = 0; i < ops.length; i++) // Write DOM (maybe) + endOperation_W1(ops[i]); + for (var i = 0; i < ops.length; i++) // Read DOM + endOperation_R2(ops[i]); + for (var i = 0; i < ops.length; i++) // Write DOM (maybe) + endOperation_W2(ops[i]); + for (var i = 0; i < ops.length; i++) // Read DOM + endOperation_finish(ops[i]); + } + + function endOperation_R1(op) { + var cm = op.cm, display = cm.display; + maybeClipScrollbars(cm); + if (op.updateMaxLine) findMaxLine(cm); + + op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || + op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || + op.scrollToPos.to.line >= display.viewTo) || + display.maxLineChanged && cm.options.lineWrapping; + op.update = op.mustUpdate && + new DisplayUpdate(cm, op.mustUpdate && { top: op.scrollTop, ensure: op.scrollToPos }, op.forceUpdate); + } + + function endOperation_W1(op) { + op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); + } + + function endOperation_R2(op) { + var cm = op.cm, display = cm.display; + if (op.updatedDisplay) updateHeightsInViewport(cm); + + op.barMeasure = measureForScrollbars(cm); + + // If the max line changed since it was last measured, measure it, + // and ensure the document's width matches it. + // updateDisplay_W2 will use these properties to do the actual resizing + if (display.maxLineChanged && !cm.options.lineWrapping) { + op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; + cm.display.sizerWidth = op.adjustWidthTo; + op.barMeasure.scrollWidth = + Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); + op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); + } + + if (op.updatedDisplay || op.selectionChanged) + op.preparedSelection = display.input.prepareSelection(op.focus); + } + + function endOperation_W2(op) { + var cm = op.cm; + + if (op.adjustWidthTo != null) { + cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; + if (op.maxScrollLeft < cm.doc.scrollLeft) + setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); + cm.display.maxLineChanged = false; + } + + var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus()) + if (op.preparedSelection) + cm.display.input.showSelection(op.preparedSelection, takeFocus); + if (op.updatedDisplay || op.startHeight != cm.doc.height) + updateScrollbars(cm, op.barMeasure); + if (op.updatedDisplay) + setDocumentHeight(cm, op.barMeasure); + + if (op.selectionChanged) restartBlink(cm); + + if (cm.state.focused && op.updateInput) + cm.display.input.reset(op.typing); + if (takeFocus) ensureFocus(op.cm); + } + + function endOperation_finish(op) { + var cm = op.cm, display = cm.display, doc = cm.doc; + + if (op.updatedDisplay) postUpdateDisplay(cm, op.update); + + // Abort mouse wheel delta measurement, when scrolling explicitly + if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) + display.wheelStartX = display.wheelStartY = null; + + // Propagate the scroll position to the actual DOM scroller + if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) { + doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop)); + display.scrollbars.setScrollTop(doc.scrollTop); + display.scroller.scrollTop = doc.scrollTop; + } + if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) { + doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft)); + display.scrollbars.setScrollLeft(doc.scrollLeft); + display.scroller.scrollLeft = doc.scrollLeft; + alignHorizontally(cm); + } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), + clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); + if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords); + } + + // Fire events for markers that are hidden/unidden by editing or + // undoing + var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; + if (hidden) for (var i = 0; i < hidden.length; ++i) + if (!hidden[i].lines.length) signal(hidden[i], "hide"); + if (unhidden) for (var i = 0; i < unhidden.length; ++i) + if (unhidden[i].lines.length) signal(unhidden[i], "unhide"); + + if (display.wrapper.offsetHeight) + doc.scrollTop = cm.display.scroller.scrollTop; + + // Fire change events, and delayed event handlers + if (op.changeObjs) + signal(cm, "changes", cm, op.changeObjs); + if (op.update) + op.update.finish(); + } + + // Run the given function in an operation + function runInOp(cm, f) { + if (cm.curOp) return f(); + startOperation(cm); + try { return f(); } + finally { endOperation(cm); } + } + // Wraps a function in an operation. Returns the wrapped function. + function operation(cm, f) { + return function () { + if (cm.curOp) return f.apply(cm, arguments); + startOperation(cm); + try { return f.apply(cm, arguments); } + finally { endOperation(cm); } + }; + } + // Used to add methods to editor and doc instances, wrapping them in + // operations. + function methodOp(f) { + return function () { + if (this.curOp) return f.apply(this, arguments); + startOperation(this); + try { return f.apply(this, arguments); } + finally { endOperation(this); } + }; + } + function docMethodOp(f) { + return function () { + var cm = this.cm; + if (!cm || cm.curOp) return f.apply(this, arguments); + startOperation(cm); + try { return f.apply(this, arguments); } + finally { endOperation(cm); } + }; + } + + // VIEW TRACKING + + // These objects are used to represent the visible (currently drawn) + // part of the document. A LineView may correspond to multiple + // logical lines, if those are connected by collapsed ranges. + function LineView(doc, line, lineN) { + // The starting line + this.line = line; + // Continuing lines, if any + this.rest = visualLineContinued(line); + // Number of logical lines in this visual line + this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; + this.node = this.text = null; + this.hidden = lineIsHidden(doc, line); + } + + // Create a range of LineView objects for the given lines. + function buildViewArray(cm, from, to) { + var array = [], nextPos; + for (var pos = from; pos < to; pos = nextPos) { + var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); + nextPos = pos + view.size; + array.push(view); + } + return array; + } + + // Updates the display.view data structure for a given change to the + // document. From and to are in pre-change coordinates. Lendiff is + // the amount of lines added or subtracted by the change. This is + // used for changes that span multiple lines, or change the way + // lines are divided into visual lines. regLineChange (below) + // registers single-line changes. + function regChange(cm, from, to, lendiff) { + if (from == null) from = cm.doc.first; + if (to == null) to = cm.doc.first + cm.doc.size; + if (!lendiff) lendiff = 0; + + var display = cm.display; + if (lendiff && to < display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers > from)) + display.updateLineNumbers = from; + + cm.curOp.viewChanged = true; + + if (from >= display.viewTo) { // Change after + if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) + resetView(cm); + } else if (to <= display.viewFrom) { // Change before + if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { + resetView(cm); } else { - return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }); + display.viewFrom += lendiff; + display.viewTo += lendiff; + } + } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap + resetView(cm); + } else if (from <= display.viewFrom) { // Top overlap + var cut = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cut) { + display.view = display.view.slice(cut.index); + display.viewFrom = cut.lineN; + display.viewTo += lendiff; + } else { + resetView(cm); + } + } else if (to >= display.viewTo) { // Bottom overlap + var cut = viewCuttingPoint(cm, from, from, -1); + if (cut) { + display.view = display.view.slice(0, cut.index); + display.viewTo = cut.lineN; + } else { + resetView(cm); + } + } else { // Gap in the middle + var cutTop = viewCuttingPoint(cm, from, from, -1); + var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cutTop && cutBot) { + display.view = display.view.slice(0, cutTop.index) + .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) + .concat(display.view.slice(cutBot.index)); + display.viewTo += lendiff; + } else { + resetView(cm); } } - // Handle a key from the keypress event - function handleCharBinding(cm, e, ch) { - return dispatchKey(cm, "'" + ch + "'", e, - function (b) { return doHandleBinding(cm, b, true); }); + var ext = display.externalMeasured; + if (ext) { + if (to < ext.lineN) + ext.lineN += lendiff; + else if (from < ext.lineN + ext.size) + display.externalMeasured = null; + } + } + + // Register a change to a single line. Type must be one of "text", + // "gutter", "class", "widget" + function regLineChange(cm, line, type) { + cm.curOp.viewChanged = true; + var display = cm.display, ext = cm.display.externalMeasured; + if (ext && line >= ext.lineN && line < ext.lineN + ext.size) + display.externalMeasured = null; + + if (line < display.viewFrom || line >= display.viewTo) return; + var lineView = display.view[findViewIndex(cm, line)]; + if (lineView.node == null) return; + var arr = lineView.changes || (lineView.changes = []); + if (indexOf(arr, type) == -1) arr.push(type); + } + + // Clear the view. + function resetView(cm) { + cm.display.viewFrom = cm.display.viewTo = cm.doc.first; + cm.display.view = []; + cm.display.viewOffset = 0; + } + + // Find the view element corresponding to a given line. Return null + // when the line isn't visible. + function findViewIndex(cm, n) { + if (n >= cm.display.viewTo) return null; + n -= cm.display.viewFrom; + if (n < 0) return null; + var view = cm.display.view; + for (var i = 0; i < view.length; i++) { + n -= view[i].size; + if (n < 0) return i; + } + } + + function viewCuttingPoint(cm, oldN, newN, dir) { + var index = findViewIndex(cm, oldN), diff, view = cm.display.view; + if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) + return { index: index, lineN: newN }; + for (var i = 0, n = cm.display.viewFrom; i < index; i++) + n += view[i].size; + if (n != oldN) { + if (dir > 0) { + if (index == view.length - 1) return null; + diff = (n + view[index].size) - oldN; + index++; + } else { + diff = n - oldN; + } + oldN += diff; newN += diff; + } + while (visualLineNo(cm.doc, newN) != newN) { + if (index == (dir < 0 ? 0 : view.length - 1)) return null; + newN += dir * view[index - (dir < 0 ? 1 : 0)].size; + index += dir; + } + return { index: index, lineN: newN }; + } + + // Force the view to cover a given range, adding empty view element + // or clipping off existing ones as needed. + function adjustView(cm, from, to) { + var display = cm.display, view = display.view; + if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { + display.view = buildViewArray(cm, from, to); + display.viewFrom = from; + } else { + if (display.viewFrom > from) + display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); + else if (display.viewFrom < from) + display.view = display.view.slice(findViewIndex(cm, from)); + display.viewFrom = from; + if (display.viewTo < to) + display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); + else if (display.viewTo > to) + display.view = display.view.slice(0, findViewIndex(cm, to)); + } + display.viewTo = to; + } + + // Count the number of lines in the view whose DOM representation is + // out of date (or nonexistent). + function countDirtyView(cm) { + var view = cm.display.view, dirty = 0; + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty; + } + return dirty; + } + + // EVENT HANDLERS + + // Attach the necessary event handlers when initializing the editor + function registerEventHandlers(cm) { + var d = cm.display; + on(d.scroller, "mousedown", operation(cm, onMouseDown)); + // Older IE's will not fire a second mousedown for a double click + if (ie && ie_version < 11) + on(d.scroller, "dblclick", operation(cm, function (e) { + if (signalDOMEvent(cm, e)) return; + var pos = posFromMouse(cm, e); + if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return; + e_preventDefault(e); + var word = cm.findWordAt(pos); + extendSelection(cm.doc, word.anchor, word.head); + })); + else + on(d.scroller, "dblclick", function (e) { signalDOMEvent(cm, e) || e_preventDefault(e); }); + // Some browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for these browsers. + if (!captureRightClick) on(d.scroller, "contextmenu", function (e) { onContextMenu(cm, e); }); + + // Used to suppress mouse event handling when a touch happens + var touchFinished, prevTouch = { end: 0 }; + function finishTouch() { + if (d.activeTouch) { + touchFinished = setTimeout(function () { d.activeTouch = null; }, 1000); + prevTouch = d.activeTouch; + prevTouch.end = +new Date; + } + }; + function isMouseLikeTouchEvent(e) { + if (e.touches.length != 1) return false; + var touch = e.touches[0]; + return touch.radiusX <= 1 && touch.radiusY <= 1; + } + function farAway(touch, other) { + if (other.left == null) return true; + var dx = other.left - touch.left, dy = other.top - touch.top; + return dx * dx + dy * dy > 20 * 20; + } + on(d.scroller, "touchstart", function (e) { + if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) { + clearTimeout(touchFinished); + var now = +new Date; + d.activeTouch = { + start: now, moved: false, + prev: now - prevTouch.end <= 300 ? prevTouch : null + }; + if (e.touches.length == 1) { + d.activeTouch.left = e.touches[0].pageX; + d.activeTouch.top = e.touches[0].pageY; + } + } + }); + on(d.scroller, "touchmove", function () { + if (d.activeTouch) d.activeTouch.moved = true; + }); + on(d.scroller, "touchend", function (e) { + var touch = d.activeTouch; + if (touch && !eventInWidget(d, e) && touch.left != null && + !touch.moved && new Date - touch.start < 300) { + var pos = cm.coordsChar(d.activeTouch, "page"), range; + if (!touch.prev || farAway(touch, touch.prev)) // Single tap + range = new Range(pos, pos); + else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap + range = cm.findWordAt(pos); + else // Triple tap + range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); + cm.setSelection(range.anchor, range.head); + cm.focus(); + e_preventDefault(e); + } + finishTouch(); + }); + on(d.scroller, "touchcancel", finishTouch); + + // Sync scrolling between fake scrollbars and real scrollable + // area, ensure viewport is updated when scrolling. + on(d.scroller, "scroll", function () { + if (d.scroller.clientHeight) { + setScrollTop(cm, d.scroller.scrollTop); + setScrollLeft(cm, d.scroller.scrollLeft, true); + signal(cm, "scroll", cm); + } + }); + + // Listen to wheel events in order to try and update the viewport on time. + on(d.scroller, "mousewheel", function (e) { onScrollWheel(cm, e); }); + on(d.scroller, "DOMMouseScroll", function (e) { onScrollWheel(cm, e); }); + + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function () { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); + + d.dragFunctions = { + enter: function (e) { if (!signalDOMEvent(cm, e)) e_stop(e); }, + over: function (e) { if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); } }, + start: function (e) { onDragStart(cm, e); }, + drop: operation(cm, onDrop), + leave: function (e) { if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); } } + }; + + var inp = d.input.getField(); + on(inp, "keyup", function (e) { onKeyUp.call(cm, e); }); + on(inp, "keydown", operation(cm, onKeyDown)); + on(inp, "keypress", operation(cm, onKeyPress)); + on(inp, "focus", bind(onFocus, cm)); + on(inp, "blur", bind(onBlur, cm)); + } + + function dragDropChanged(cm, value, old) { + var wasOn = old && old != CodeMirror.Init; + if (!value != !wasOn) { + var funcs = cm.display.dragFunctions; + var toggle = value ? on : off; + toggle(cm.display.scroller, "dragstart", funcs.start); + toggle(cm.display.scroller, "dragenter", funcs.enter); + toggle(cm.display.scroller, "dragover", funcs.over); + toggle(cm.display.scroller, "dragleave", funcs.leave); + toggle(cm.display.scroller, "drop", funcs.drop); + } + } + + // Called when the window resizes + function onResize(cm) { + var d = cm.display; + if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth) + return; + // Might be a text scaling operation, clear size caches. + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + d.scrollbarsClipped = false; + cm.setSize(); + } + + // MOUSE EVENTS + + // Return true when the given mouse event happened in a widget + function eventInWidget(display, e) { + for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { + if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || + (n.parentNode == display.sizer && n != display.mover)) + return true; + } + } + + // Given a mouse event, find the corresponding position. If liberal + // is false, it checks whether a gutter or scrollbar was clicked, + // and returns null if it was. forRect is used by rectangular + // selections, and tries to estimate a character position even for + // coordinates beyond the right of the text. + function posFromMouse(cm, e, liberal, forRect) { + var display = cm.display; + if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null; + + var x, y, space = display.lineSpace.getBoundingClientRect(); + // Fails unpredictably on IE[67] when mouse is dragged around quickly. + try { x = e.clientX - space.left; y = e.clientY - space.top; } + catch (e) { return null; } + var coords = coordsChar(cm, x, y), line; + if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { + var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; + coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); + } + return coords; + } + + // A mouse down can be a single click, double click, triple click, + // start of selection drag, start of text drag, new cursor + // (ctrl-click), rectangle drag (alt-drag), or xwin + // middle-click-paste. Or it might be a click on something we should + // not interfere with, such as a scrollbar or widget. + function onMouseDown(e) { + var cm = this, display = cm.display; + if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return; + display.shift = e.shiftKey; + + if (eventInWidget(display, e)) { + if (!webkit) { + // Briefly turn off draggability, to allow widgets to do + // normal dragging things. + display.scroller.draggable = false; + setTimeout(function () { display.scroller.draggable = true; }, 100); + } + return; + } + if (clickInGutter(cm, e)) return; + var start = posFromMouse(cm, e); + window.focus(); + + switch (e_button(e)) { + case 1: + // #3261: make sure, that we're not starting a second selection + if (cm.state.selectingText) + cm.state.selectingText(e); + else if (start) + leftButtonDown(cm, e, start); + else if (e_target(e) == display.scroller) + e_preventDefault(e); + break; + case 2: + if (webkit) cm.state.lastMiddleDown = +new Date; + if (start) extendSelection(cm.doc, start); + setTimeout(function () { display.input.focus(); }, 20); + e_preventDefault(e); + break; + case 3: + if (captureRightClick) onContextMenu(cm, e); + else delayBlurEvent(cm); + break; + } + } + + var lastClick, lastDoubleClick; + function leftButtonDown(cm, e, start) { + if (ie) setTimeout(bind(ensureFocus, cm), 0); + else cm.curOp.focus = activeElt(); + + var now = +new Date, type; + if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) { + type = "triple"; + } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) { + type = "double"; + lastDoubleClick = { time: now, pos: start }; + } else { + type = "single"; + lastClick = { time: now, pos: start }; } - var lastStoppedKey = null; - function onKeyDown(e) { - var cm = this; - cm.curOp.focus = activeElt(); - if (signalDOMEvent(cm, e)) return; - // IE does strange things with escape. - if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false; - var code = e.keyCode; - cm.display.shift = code == 16 || e.shiftKey; - var handled = handleKeyBinding(cm, e); + var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained; + if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && + type == "single" && (contained = sel.contains(start)) > -1 && + (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) && + (cmp(contained.to(), start) > 0 || start.xRel < 0)) + leftButtonStartDrag(cm, e, start, modifier); + else + leftButtonSelect(cm, e, start, type, modifier); + } + + // Start a text drag. When it ends, see if any dragging actually + // happen, and treat as a click if it didn't. + function leftButtonStartDrag(cm, e, start, modifier) { + var display = cm.display, startTime = +new Date; + var dragEnd = operation(cm, function (e2) { + if (webkit) display.scroller.draggable = false; + cm.state.draggingText = false; + off(document, "mouseup", dragEnd); + off(display.scroller, "drop", dragEnd); + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { + e_preventDefault(e2); + if (!modifier && +new Date - 200 < startTime) + extendSelection(cm.doc, start); + // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) + if (webkit || ie && ie_version == 9) + setTimeout(function () { document.body.focus(); display.input.focus(); }, 20); + else + display.input.focus(); + } + }); + // Let the drag handler handle this. + if (webkit) display.scroller.draggable = true; + cm.state.draggingText = dragEnd; + dragEnd.copy = mac ? e.altKey : e.ctrlKey + // IE's approach to draggable + if (display.scroller.dragDrop) display.scroller.dragDrop(); + on(document, "mouseup", dragEnd); + on(display.scroller, "drop", dragEnd); + } + + // Normal selection, as opposed to text dragging. + function leftButtonSelect(cm, e, start, type, addNew) { + var display = cm.display, doc = cm.doc; + e_preventDefault(e); + + var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; + if (addNew && !e.shiftKey) { + ourIndex = doc.sel.contains(start); + if (ourIndex > -1) + ourRange = ranges[ourIndex]; + else + ourRange = new Range(start, start); + } else { + ourRange = doc.sel.primary(); + ourIndex = doc.sel.primIndex; + } + + if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) { + type = "rect"; + if (!addNew) ourRange = new Range(start, start); + start = posFromMouse(cm, e, true, true); + ourIndex = -1; + } else if (type == "double") { + var word = cm.findWordAt(start); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, word.anchor, word.head); + else + ourRange = word; + } else if (type == "triple") { + var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0))); + if (cm.display.shift || doc.extend) + ourRange = extendRange(doc, ourRange, line.anchor, line.head); + else + ourRange = line; + } else { + ourRange = extendRange(doc, ourRange, start); + } + + if (!addNew) { + ourIndex = 0; + setSelection(doc, new Selection([ourRange], 0), sel_mouse); + startSel = doc.sel; + } else if (ourIndex == -1) { + ourIndex = ranges.length; + setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex), + { scroll: false, origin: "*mouse" }); + } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) { + setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), + { scroll: false, origin: "*mouse" }); + startSel = doc.sel; + } else { + replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); + } + + var lastPos = start; + function extendTo(pos) { + if (cmp(lastPos, pos) == 0) return; + lastPos = pos; + + if (type == "rect") { + var ranges = [], tabSize = cm.options.tabSize; + var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); + var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); + var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); + for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); + line <= end; line++) { + var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); + if (left == right) + ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); + else if (text.length > leftPos) + ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); + } + if (!ranges.length) ranges.push(new Range(start, start)); + setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), + { origin: "*mouse", scroll: false }); + cm.scrollIntoView(pos); + } else { + var oldRange = ourRange; + var anchor = oldRange.anchor, head = pos; + if (type != "single") { + if (type == "double") + var range = cm.findWordAt(pos); + else + var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))); + if (cmp(range.anchor, anchor) > 0) { + head = range.head; + anchor = minPos(oldRange.from(), range.anchor); + } else { + head = range.anchor; + anchor = maxPos(oldRange.to(), range.head); + } + } + var ranges = startSel.ranges.slice(0); + ranges[ourIndex] = new Range(clipPos(doc, anchor), head); + setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse); + } + } + + var editorSize = display.wrapper.getBoundingClientRect(); + // Used to ensure timeout re-tries don't fire when another extend + // happened in the meantime (clearTimeout isn't reliable -- at + // least on Chrome, the timeouts still happen even when cleared, + // if the clear happens after their scheduled firing time). + var counter = 0; + + function extend(e) { + var curCount = ++counter; + var cur = posFromMouse(cm, e, true, type == "rect"); + if (!cur) return; + if (cmp(cur, lastPos) != 0) { + cm.curOp.focus = activeElt(); + extendTo(cur); + var visible = visibleLines(display, doc); + if (cur.line >= visible.to || cur.line < visible.from) + setTimeout(operation(cm, function () { if (counter == curCount) extend(e); }), 150); + } else { + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; + if (outside) setTimeout(operation(cm, function () { + if (counter != curCount) return; + display.scroller.scrollTop += outside; + extend(e); + }), 50); + } + } + + function done(e) { + cm.state.selectingText = false; + counter = Infinity; + e_preventDefault(e); + display.input.focus(); + off(document, "mousemove", move); + off(document, "mouseup", up); + doc.history.lastSelOrigin = null; + } + + var move = operation(cm, function (e) { + if (!e_button(e)) done(e); + else extend(e); + }); + var up = operation(cm, done); + cm.state.selectingText = up; + on(document, "mousemove", move); + on(document, "mouseup", up); + } + + // Determines whether an event happened in the gutter, and fires the + // handlers for the corresponding event. + function gutterEvent(cm, e, type, prevent) { + try { var mX = e.clientX, mY = e.clientY; } + catch (e) { return false; } + if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false; + if (prevent) e_preventDefault(e); + + var display = cm.display; + var lineBox = display.lineDiv.getBoundingClientRect(); + + if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e); + mY -= lineBox.top - display.viewOffset; + + for (var i = 0; i < cm.options.gutters.length; ++i) { + var g = display.gutters.childNodes[i]; + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY); + var gutter = cm.options.gutters[i]; + signal(cm, type, cm, line, gutter, e); + return e_defaultPrevented(e); + } + } + } + + function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true); + } + + // Kludge to work around strange IE behavior where it'll sometimes + // re-fire a series of drag-related events right after the drop (#1551) + var lastDrop = 0; + + function onDrop(e) { + var cm = this; + clearDragCursor(cm); + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) + return; + e_preventDefault(e); + if (ie) lastDrop = +new Date; + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; + if (!pos || cm.isReadOnly()) return; + // Might be a file drop, in which case we simply extract the text + // and insert it. + if (files && files.length && window.FileReader && window.File) { + var n = files.length, text = Array(n), read = 0; + var loadFile = function (file, i) { + if (cm.options.allowDropFileTypes && + indexOf(cm.options.allowDropFileTypes, file.type) == -1) + return; + + var reader = new FileReader; + reader.onload = operation(cm, function () { + var content = reader.result; + if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = ""; + text[i] = content; + if (++read == n) { + pos = clipPos(cm.doc, pos); + var change = { + from: pos, to: pos, + text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), + origin: "paste" + }; + makeChange(cm.doc, change); + setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); + } + }); + reader.readAsText(file); + }; + for (var i = 0; i < n; ++i) loadFile(files[i], i); + } else { // Normal drop + // Don't do a replace if the drop happened inside of the selected text. + if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { + cm.state.draggingText(e); + // Ensure the editor is re-focused + setTimeout(function () { cm.display.input.focus(); }, 20); + return; + } + try { + var text = e.dataTransfer.getData("Text"); + if (text) { + if (cm.state.draggingText && !cm.state.draggingText.copy) + var selected = cm.listSelections(); + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); + if (selected) for (var i = 0; i < selected.length; ++i) + replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag"); + cm.replaceSelection(text, "around", "paste"); + cm.display.input.focus(); + } + } + catch (e) { } + } + } + + function onDragStart(cm, e) { + if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; } + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return; + + e.dataTransfer.setData("Text", cm.getSelection()); + e.dataTransfer.effectAllowed = "copyMove" + + // Use dummy image instead of default browsers image. + // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. + if (e.dataTransfer.setDragImage && !safari) { + var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); + img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; if (presto) { - lastStoppedKey = handled ? code : null; - // Opera has no cut event... we try to at least catch the key combo - if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) - cm.replaceSelection("", null, "cut"); + img.width = img.height = 1; + cm.display.wrapper.appendChild(img); + // Force a relayout, or Opera won't use our image for some obscure reason + img._top = img.offsetTop; } - - // Turn mouse into crosshair when Alt is held on Mac. - if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) - showCrossHair(cm); + e.dataTransfer.setDragImage(img, 0, 0); + if (presto) img.parentNode.removeChild(img); } + } - function showCrossHair(cm) { - var lineDiv = cm.display.lineDiv; - addClass(lineDiv, "CodeMirror-crosshair"); + function onDragOver(cm, e) { + var pos = posFromMouse(cm, e); + if (!pos) return; + var frag = document.createDocumentFragment(); + drawSelectionCursor(cm, pos, frag); + if (!cm.display.dragCursor) { + cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); + cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); + } + removeChildrenAndAdd(cm.display.dragCursor, frag); + } - function up(e) { - if (e.keyCode == 18 || !e.altKey) { - rmClass(lineDiv, "CodeMirror-crosshair"); - off(document, "keyup", up); - off(document, "mouseover", up); + function clearDragCursor(cm) { + if (cm.display.dragCursor) { + cm.display.lineSpace.removeChild(cm.display.dragCursor); + cm.display.dragCursor = null; + } + } + + // SCROLL EVENTS + + // Sync the scrollable area and scrollbars, ensure the viewport + // covers the visible area. + function setScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) return; + cm.doc.scrollTop = val; + if (!gecko) updateDisplaySimple(cm, { top: val }); + if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val; + cm.display.scrollbars.setScrollTop(val); + if (gecko) updateDisplaySimple(cm); + startWorker(cm, 100); + } + // Sync scroller and scrollbar, ensure the gutter elements are + // aligned. + function setScrollLeft(cm, val, isScroller) { + if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return; + val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); + cm.doc.scrollLeft = val; + alignHorizontally(cm); + if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val; + cm.display.scrollbars.setScrollLeft(val); + } + + // Since the delta values reported on mouse wheel events are + // unstandardized between browsers and even browser versions, and + // generally horribly unpredictable, this code starts by measuring + // the scroll effect that the first few mouse wheel events have, + // and, from that, detects the way it can convert deltas to pixel + // offsets afterwards. + // + // The reason we want to know the amount a wheel event will scroll + // is that it gives us a chance to update the display before the + // actual scrolling happens, reducing flickering. + + var wheelSamples = 0, wheelPixelsPerUnit = null; + // Fill in a browser-detected starting value on browsers where we + // know one. These don't have to be accurate -- the result of them + // being wrong would just be a slight flicker on the first wheel + // scroll (if it is large enough). + if (ie) wheelPixelsPerUnit = -.53; + else if (gecko) wheelPixelsPerUnit = 15; + else if (chrome) wheelPixelsPerUnit = -.7; + else if (safari) wheelPixelsPerUnit = -1 / 3; + + var wheelEventDelta = function (e) { + var dx = e.wheelDeltaX, dy = e.wheelDeltaY; + if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail; + if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail; + else if (dy == null) dy = e.wheelDelta; + return { x: dx, y: dy }; + }; + CodeMirror.wheelEventPixels = function (e) { + var delta = wheelEventDelta(e); + delta.x *= wheelPixelsPerUnit; + delta.y *= wheelPixelsPerUnit; + return delta; + }; + + function onScrollWheel(cm, e) { + var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; + + var display = cm.display, scroll = display.scroller; + // Quit if there's nothing to scroll here + var canScrollX = scroll.scrollWidth > scroll.clientWidth; + var canScrollY = scroll.scrollHeight > scroll.clientHeight; + if (!(dx && canScrollX || dy && canScrollY)) return; + + // Webkit browsers on OS X abort momentum scrolls when the target + // of the scroll event is removed from the scrollable element. + // This hack (see related code in patchDisplay) makes sure the + // element is kept around. + if (dy && mac && webkit) { + outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { + for (var i = 0; i < view.length; i++) { + if (view[i].node == cur) { + cm.display.currentWheelTarget = cur; + break outer; + } } } - on(document, "keyup", up); - on(document, "mouseover", up); } - function onKeyUp(e) { - if (e.keyCode == 16) this.doc.sel.shift = false; - signalDOMEvent(this, e); + // On some browsers, horizontal scrolling will cause redraws to + // happen before the gutter has been realigned, causing it to + // wriggle around in a most unseemly way. When we have an + // estimated pixels/delta value, we just handle horizontal + // scrolling entirely here. It'll be slightly off from native, but + // better than glitching out. + if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { + if (dy && canScrollY) + setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))); + setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth))); + // Only prevent default scrolling if vertical scrolling is + // actually possible. Otherwise, it causes vertical scroll + // jitter on OSX trackpads when deltaX is small and deltaY + // is large (issue #3579) + if (!dy || (dy && canScrollY)) + e_preventDefault(e); + display.wheelStartX = null; // Abort measurement, if in progress + return; } - function onKeyPress(e) { - var cm = this; - if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return; - var keyCode = e.keyCode, charCode = e.charCode; - if (presto && keyCode == lastStoppedKey) { lastStoppedKey = null; e_preventDefault(e); return; } - if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return; - var ch = String.fromCharCode(charCode == null ? keyCode : charCode); - if (handleCharBinding(cm, e, ch)) return; - cm.display.input.onKeyPress(e); + // 'Project' the visible viewport to cover the area that is being + // scrolled into view (if we know enough to estimate it). + if (dy && wheelPixelsPerUnit != null) { + var pixels = dy * wheelPixelsPerUnit; + var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; + if (pixels < 0) top = Math.max(0, top + pixels - 50); + else bot = Math.min(cm.doc.height, bot + pixels + 50); + updateDisplaySimple(cm, { top: top, bottom: bot }); } - // FOCUS/BLUR EVENTS - - function delayBlurEvent(cm) { - cm.state.delayingBlurEvent = true; - setTimeout(function () { - if (cm.state.delayingBlurEvent) { - cm.state.delayingBlurEvent = false; - onBlur(cm); - } - }, 100); + if (wheelSamples < 20) { + if (display.wheelStartX == null) { + display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; + display.wheelDX = dx; display.wheelDY = dy; + setTimeout(function () { + if (display.wheelStartX == null) return; + var movedX = scroll.scrollLeft - display.wheelStartX; + var movedY = scroll.scrollTop - display.wheelStartY; + var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || + (movedX && display.wheelDX && movedX / display.wheelDX); + display.wheelStartX = display.wheelStartY = null; + if (!sample) return; + wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); + ++wheelSamples; + }, 200); + } else { + display.wheelDX += dx; display.wheelDY += dy; + } } + } - function onFocus(cm) { - if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false; + // KEY EVENTS - if (cm.options.readOnly == "nocursor") return; - if (!cm.state.focused) { - signal(cm, "focus", cm); - cm.state.focused = true; - addClass(cm.display.wrapper, "CodeMirror-focused"); - // This test prevents this from firing when a context - // menu is closed (since the input reset would kill the - // select-all detection hack) - if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { + // Run a handler that was bound to a key. + function doHandleBinding(cm, bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound]; + if (!bound) return false; + } + // Ensure previous input has been read, so that the handler sees a + // consistent view of the document + cm.display.input.ensurePolled(); + var prevShift = cm.display.shift, done = false; + try { + if (cm.isReadOnly()) cm.state.suppressEdits = true; + if (dropShift) cm.display.shift = false; + done = bound(cm) != Pass; + } finally { + cm.display.shift = prevShift; + cm.state.suppressEdits = false; + } + return done; + } + + function lookupKeyForEditor(cm, name, handle) { + for (var i = 0; i < cm.state.keyMaps.length; i++) { + var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); + if (result) return result; + } + return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) + || lookupKey(name, cm.options.keyMap, handle, cm); + } + + var stopSeq = new Delayed; + function dispatchKey(cm, name, e, handle) { + var seq = cm.state.keySeq; + if (seq) { + if (isModifierKey(name)) return "handled"; + stopSeq.set(50, function () { + if (cm.state.keySeq == seq) { + cm.state.keySeq = null; cm.display.input.reset(); - if (webkit) setTimeout(function () { cm.display.input.reset(true); }, 20); // Issue #1730 } - cm.display.input.receivedFocus(); - } + }); + name = seq + " " + name; + } + var result = lookupKeyForEditor(cm, name, handle); + + if (result == "multi") + cm.state.keySeq = name; + if (result == "handled") + signalLater(cm, "keyHandled", cm, name, e); + + if (result == "handled" || result == "multi") { + e_preventDefault(e); restartBlink(cm); } - function onBlur(cm) { - if (cm.state.delayingBlurEvent) return; - if (cm.state.focused) { - signal(cm, "blur", cm); - cm.state.focused = false; - rmClass(cm.display.wrapper, "CodeMirror-focused"); + if (seq && !result && /\'$/.test(name)) { + e_preventDefault(e); + return true; + } + return !!result; + } + + // Handle a key from the keydown event. + function handleKeyBinding(cm, e) { + var name = keyName(e, true); + if (!name) return false; + + if (e.shiftKey && !cm.state.keySeq) { + // First try to resolve full name (including 'Shift-'). Failing + // that, see if there is a cursor-motion command (starting with + // 'go') bound to the keyname without 'Shift-'. + return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) + || dispatchKey(cm, name, e, function (b) { + if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) + return doHandleBinding(cm, b); + }); + } else { + return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }); + } + } + + // Handle a key from the keypress event + function handleCharBinding(cm, e, ch) { + return dispatchKey(cm, "'" + ch + "'", e, + function (b) { return doHandleBinding(cm, b, true); }); + } + + var lastStoppedKey = null; + function onKeyDown(e) { + var cm = this; + cm.curOp.focus = activeElt(); + if (signalDOMEvent(cm, e)) return; + // IE does strange things with escape. + if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false; + var code = e.keyCode; + cm.display.shift = code == 16 || e.shiftKey; + var handled = handleKeyBinding(cm, e); + if (presto) { + lastStoppedKey = handled ? code : null; + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) + cm.replaceSelection("", null, "cut"); + } + + // Turn mouse into crosshair when Alt is held on Mac. + if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) + showCrossHair(cm); + } + + function showCrossHair(cm) { + var lineDiv = cm.display.lineDiv; + addClass(lineDiv, "CodeMirror-crosshair"); + + function up(e) { + if (e.keyCode == 18 || !e.altKey) { + rmClass(lineDiv, "CodeMirror-crosshair"); + off(document, "keyup", up); + off(document, "mouseover", up); } - clearInterval(cm.display.blinker); - setTimeout(function () { if (!cm.state.focused) cm.display.shift = false; }, 150); } + on(document, "keyup", up); + on(document, "mouseover", up); + } - // CONTEXT MENU HANDLING + function onKeyUp(e) { + if (e.keyCode == 16) this.doc.sel.shift = false; + signalDOMEvent(this, e); + } - // To make the context menu work, we need to briefly unhide the - // textarea (making it as unobtrusive as possible) to let the - // right-click take effect on it. - function onContextMenu(cm, e) { - if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return; - if (signalDOMEvent(cm, e, "contextmenu")) return; - cm.display.input.onContextMenu(e); - } + function onKeyPress(e) { + var cm = this; + if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return; + var keyCode = e.keyCode, charCode = e.charCode; + if (presto && keyCode == lastStoppedKey) { lastStoppedKey = null; e_preventDefault(e); return; } + if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return; + var ch = String.fromCharCode(charCode == null ? keyCode : charCode); + if (handleCharBinding(cm, e, ch)) return; + cm.display.input.onKeyPress(e); + } - function contextMenuInGutter(cm, e) { - if (!hasHandler(cm, "gutterContextMenu")) return false; - return gutterEvent(cm, e, "gutterContextMenu", false); - } + // FOCUS/BLUR EVENTS - // UPDATING - - // Compute the position of the end of a change (its 'to' property - // refers to the pre-change end). - var changeEnd = CodeMirror.changeEnd = function (change) { - if (!change.text) return change.to; - return Pos(change.from.line + change.text.length - 1, - lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); - }; - - // Adjust a position to refer to the post-change position of the - // same text, or the end of the change if the change covers it. - function adjustForChange(pos, change) { - if (cmp(pos, change.from) < 0) return pos; - if (cmp(pos, change.to) <= 0) return changeEnd(change); - - var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; - if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch; - return Pos(line, ch); - } - - function computeSelAfterChange(doc, change) { - var out = []; - for (var i = 0; i < doc.sel.ranges.length; i++) { - var range = doc.sel.ranges[i]; - out.push(new Range(adjustForChange(range.anchor, change), - adjustForChange(range.head, change))); + function delayBlurEvent(cm) { + cm.state.delayingBlurEvent = true; + setTimeout(function () { + if (cm.state.delayingBlurEvent) { + cm.state.delayingBlurEvent = false; + onBlur(cm); } - return normalizeSelection(out, doc.sel.primIndex); - } + }, 100); + } - function offsetPos(pos, old, nw) { - if (pos.line == old.line) - return Pos(nw.line, pos.ch - old.ch + nw.ch); - else - return Pos(nw.line + (pos.line - old.line), pos.ch); - } + function onFocus(cm) { + if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false; - // Used by replaceSelections to allow moving the selection to the - // start or around the replaced test. Hint may be "start" or "around". - function computeReplacedSel(doc, changes, hint) { - var out = []; - var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; - for (var i = 0; i < changes.length; i++) { - var change = changes[i]; - var from = offsetPos(change.from, oldPrev, newPrev); - var to = offsetPos(changeEnd(change), oldPrev, newPrev); - oldPrev = change.to; - newPrev = to; - if (hint == "around") { - var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; - out[i] = new Range(inv ? to : from, inv ? from : to); - } else { - out[i] = new Range(from, from); - } + if (cm.options.readOnly == "nocursor") return; + if (!cm.state.focused) { + signal(cm, "focus", cm); + cm.state.focused = true; + addClass(cm.display.wrapper, "CodeMirror-focused"); + // This test prevents this from firing when a context + // menu is closed (since the input reset would kill the + // select-all detection hack) + if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { + cm.display.input.reset(); + if (webkit) setTimeout(function () { cm.display.input.reset(true); }, 20); // Issue #1730 } - return new Selection(out, doc.sel.primIndex); + cm.display.input.receivedFocus(); } + restartBlink(cm); + } + function onBlur(cm) { + if (cm.state.delayingBlurEvent) return; - // Allow "beforeChange" event handlers to influence a change - function filterChange(doc, change, update) { - var obj = { - canceled: false, - from: change.from, - to: change.to, - text: change.text, - origin: change.origin, - cancel: function () { this.canceled = true; } - }; - if (update) obj.update = function (from, to, text, origin) { - if (from) this.from = clipPos(doc, from); - if (to) this.to = clipPos(doc, to); - if (text) this.text = text; - if (origin !== undefined) this.origin = origin; - }; - signal(doc, "beforeChange", doc, obj); - if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); - - if (obj.canceled) return null; - return { from: obj.from, to: obj.to, text: obj.text, origin: obj.origin }; + if (cm.state.focused) { + signal(cm, "blur", cm); + cm.state.focused = false; + rmClass(cm.display.wrapper, "CodeMirror-focused"); } + clearInterval(cm.display.blinker); + setTimeout(function () { if (!cm.state.focused) cm.display.shift = false; }, 150); + } - // Apply a change to a document, and add it to the document's - // history, and propagating it to all linked documents. - function makeChange(doc, change, ignoreReadOnly) { - if (doc.cm) { - if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly); - if (doc.cm.state.suppressEdits) return; - } + // CONTEXT MENU HANDLING - if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { - change = filterChange(doc, change, true); - if (!change) return; - } + // To make the context menu work, we need to briefly unhide the + // textarea (making it as unobtrusive as possible) to let the + // right-click take effect on it. + function onContextMenu(cm, e) { + if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return; + if (signalDOMEvent(cm, e, "contextmenu")) return; + cm.display.input.onContextMenu(e); + } - // Possibly split or suppress the update based on the presence - // of read-only spans in its range. - var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); - if (split) { - for (var i = split.length - 1; i >= 0; --i) - makeChangeInner(doc, { from: split[i].from, to: split[i].to, text: i ? [""] : change.text }); + function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) return false; + return gutterEvent(cm, e, "gutterContextMenu", false); + } + + // UPDATING + + // Compute the position of the end of a change (its 'to' property + // refers to the pre-change end). + var changeEnd = CodeMirror.changeEnd = function (change) { + if (!change.text) return change.to; + return Pos(change.from.line + change.text.length - 1, + lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)); + }; + + // Adjust a position to refer to the post-change position of the + // same text, or the end of the change if the change covers it. + function adjustForChange(pos, change) { + if (cmp(pos, change.from) < 0) return pos; + if (cmp(pos, change.to) <= 0) return changeEnd(change); + + var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; + if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch; + return Pos(line, ch); + } + + function computeSelAfterChange(doc, change) { + var out = []; + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + out.push(new Range(adjustForChange(range.anchor, change), + adjustForChange(range.head, change))); + } + return normalizeSelection(out, doc.sel.primIndex); + } + + function offsetPos(pos, old, nw) { + if (pos.line == old.line) + return Pos(nw.line, pos.ch - old.ch + nw.ch); + else + return Pos(nw.line + (pos.line - old.line), pos.ch); + } + + // Used by replaceSelections to allow moving the selection to the + // start or around the replaced test. Hint may be "start" or "around". + function computeReplacedSel(doc, changes, hint) { + var out = []; + var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; + for (var i = 0; i < changes.length; i++) { + var change = changes[i]; + var from = offsetPos(change.from, oldPrev, newPrev); + var to = offsetPos(changeEnd(change), oldPrev, newPrev); + oldPrev = change.to; + newPrev = to; + if (hint == "around") { + var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; + out[i] = new Range(inv ? to : from, inv ? from : to); } else { - makeChangeInner(doc, change); + out[i] = new Range(from, from); } } + return new Selection(out, doc.sel.primIndex); + } - function makeChangeInner(doc, change) { - if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return; - var selAfter = computeSelAfterChange(doc, change); - addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); + // Allow "beforeChange" event handlers to influence a change + function filterChange(doc, change, update) { + var obj = { + canceled: false, + from: change.from, + to: change.to, + text: change.text, + origin: change.origin, + cancel: function () { this.canceled = true; } + }; + if (update) obj.update = function (from, to, text, origin) { + if (from) this.from = clipPos(doc, from); + if (to) this.to = clipPos(doc, to); + if (text) this.text = text; + if (origin !== undefined) this.origin = origin; + }; + signal(doc, "beforeChange", doc, obj); + if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj); - makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); + if (obj.canceled) return null; + return { from: obj.from, to: obj.to, text: obj.text, origin: obj.origin }; + } + + // Apply a change to a document, and add it to the document's + // history, and propagating it to all linked documents. + function makeChange(doc, change, ignoreReadOnly) { + if (doc.cm) { + if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly); + if (doc.cm.state.suppressEdits) return; + } + + if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { + change = filterChange(doc, change, true); + if (!change) return; + } + + // Possibly split or suppress the update based on the presence + // of read-only spans in its range. + var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); + if (split) { + for (var i = split.length - 1; i >= 0; --i) + makeChangeInner(doc, { from: split[i].from, to: split[i].to, text: i ? [""] : change.text }); + } else { + makeChangeInner(doc, change); + } + } + + function makeChangeInner(doc, change) { + if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return; + var selAfter = computeSelAfterChange(doc, change); + addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); + + makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); + var rebased = []; + + linkedDocs(doc, function (doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); + }); + } + + // Revert a change stored in a document's history. + function makeChangeFromHistory(doc, type, allowSelectionOnly) { + if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) return; + + var hist = doc.history, event, selAfter = doc.sel; + var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + + // Verify that there is a useable event (so that ctrl-z won't + // needlessly clear selection events) + for (var i = 0; i < source.length; i++) { + event = source[i]; + if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) + break; + } + if (i == source.length) return; + hist.lastOrigin = hist.lastSelOrigin = null; + + for (; ;) { + event = source.pop(); + if (event.ranges) { + pushSelectionToHistory(event, dest); + if (allowSelectionOnly && !event.equals(doc.sel)) { + setSelection(doc, event, { clearRedo: false }); + return; + } + selAfter = event; + } + else break; + } + + // Build up a reverse change object to add to the opposite history + // stack (redo when undoing, and vice versa). + var antiChanges = []; + pushSelectionToHistory(selAfter, dest); + dest.push({ changes: antiChanges, generation: hist.generation }); + hist.generation = event.generation || ++hist.maxGeneration; + + var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); + + for (var i = event.changes.length - 1; i >= 0; --i) { + var change = event.changes[i]; + change.origin = type; + if (filter && !filterChange(doc, change, false)) { + source.length = 0; + return; + } + + antiChanges.push(historyChangeFromChange(doc, change)); + + var after = i ? computeSelAfterChange(doc, change) : lst(source); + makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); + if (!i && doc.cm) doc.cm.scrollIntoView({ from: change.from, to: changeEnd(change) }); var rebased = []; + // Propagate to the linked documents linkedDocs(doc, function (doc, sharedHist) { if (!sharedHist && indexOf(rebased, doc.history) == -1) { rebaseHist(doc.history, change); rebased.push(doc.history); } - makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); + makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); + }); + } + } + + // Sub-views need their line numbers shifted when text is added + // above or below them in the parent document. + function shiftDoc(doc, distance) { + if (distance == 0) return; + doc.first += distance; + doc.sel = new Selection(map(doc.sel.ranges, function (range) { + return new Range(Pos(range.anchor.line + distance, range.anchor.ch), + Pos(range.head.line + distance, range.head.ch)); + }), doc.sel.primIndex); + if (doc.cm) { + regChange(doc.cm, doc.first, doc.first - distance, distance); + for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) + regLineChange(doc.cm, l, "gutter"); + } + } + + // More lower-level change function, handling only a single document + // (not linked ones). + function makeChangeSingleDoc(doc, change, selAfter, spans) { + if (doc.cm && !doc.cm.curOp) + return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); + + if (change.to.line < doc.first) { + shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); + return; + } + if (change.from.line > doc.lastLine()) return; + + // Clip the change to the size of this doc + if (change.from.line < doc.first) { + var shift = change.text.length - 1 - (doc.first - change.from.line); + shiftDoc(doc, shift); + change = { + from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), + text: [lst(change.text)], origin: change.origin + }; + } + var last = doc.lastLine(); + if (change.to.line > last) { + change = { + from: change.from, to: Pos(last, getLine(doc, last).text.length), + text: [change.text[0]], origin: change.origin + }; + } + + change.removed = getBetween(doc, change.from, change.to); + + if (!selAfter) selAfter = computeSelAfterChange(doc, change); + if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans); + else updateDoc(doc, change, spans); + setSelectionNoUndo(doc, selAfter, sel_dontScroll); + } + + // Handle the interaction of a change to a document with the editor + // that this document is part of. + function makeChangeSingleDocInEditor(cm, change, spans) { + var doc = cm.doc, display = cm.display, from = change.from, to = change.to; + + var recomputeMaxLength = false, checkWidthStart = from.line; + if (!cm.options.lineWrapping) { + checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); + doc.iter(checkWidthStart, to.line + 1, function (line) { + if (line == display.maxLine) { + recomputeMaxLength = true; + return true; + } }); } - // Revert a change stored in a document's history. - function makeChangeFromHistory(doc, type, allowSelectionOnly) { - if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) return; + if (doc.sel.contains(change.from, change.to) > -1) + signalCursorActivity(cm); - var hist = doc.history, event, selAfter = doc.sel; - var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + updateDoc(doc, change, spans, estimateHeight(cm)); - // Verify that there is a useable event (so that ctrl-z won't - // needlessly clear selection events) - for (var i = 0; i < source.length; i++) { - event = source[i]; - if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) - break; - } - if (i == source.length) return; - hist.lastOrigin = hist.lastSelOrigin = null; - - for (; ;) { - event = source.pop(); - if (event.ranges) { - pushSelectionToHistory(event, dest); - if (allowSelectionOnly && !event.equals(doc.sel)) { - setSelection(doc, event, { clearRedo: false }); - return; - } - selAfter = event; + if (!cm.options.lineWrapping) { + doc.iter(checkWidthStart, from.line + change.text.length, function (line) { + var len = lineLength(line); + if (len > display.maxLineLength) { + display.maxLine = line; + display.maxLineLength = len; + display.maxLineChanged = true; + recomputeMaxLength = false; } - else break; + }); + if (recomputeMaxLength) cm.curOp.updateMaxLine = true; + } + + // Adjust frontier, schedule worker + doc.frontier = Math.min(doc.frontier, from.line); + startWorker(cm, 400); + + var lendiff = change.text.length - (to.line - from.line) - 1; + // Remember that these lines changed, for updating the display + if (change.full) + regChange(cm); + else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) + regLineChange(cm, from.line, "text"); + else + regChange(cm, from.line, to.line + 1, lendiff); + + var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); + if (changeHandler || changesHandler) { + var obj = { + from: from, to: to, + text: change.text, + removed: change.removed, + origin: change.origin + }; + if (changeHandler) signalLater(cm, "change", cm, obj); + if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); + } + cm.display.selForContextMenu = null; + } + + function replaceRange(doc, code, from, to, origin) { + if (!to) to = from; + if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } + if (typeof code == "string") code = doc.splitLines(code); + makeChange(doc, { from: from, to: to, text: code, origin: origin }); + } + + // SCROLLING THINGS INTO VIEW + + // If an editor sits on the top or bottom of the window, partially + // scrolled out of view, this ensures that the cursor is visible. + function maybeScrollWindow(cm, coords) { + if (signalDOMEvent(cm, "scrollCursorIntoView")) return; + + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; + if (coords.top + box.top < 0) doScroll = true; + else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; + if (doScroll != null && !phantom) { + var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + + (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + + (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " + + coords.left + "px; width: 2px;"); + cm.display.lineSpace.appendChild(scrollNode); + scrollNode.scrollIntoView(doScroll); + cm.display.lineSpace.removeChild(scrollNode); + } + } + + // Scroll a given position into view (immediately), verifying that + // it actually became visible (as line heights are accurately + // measured, the position of something may 'drift' during drawing). + function scrollPosIntoView(cm, pos, end, margin) { + if (margin == null) margin = 0; + for (var limit = 0; limit < 5; limit++) { + var changed = false, coords = cursorCoords(cm, pos); + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); + var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), + Math.min(coords.top, endCoords.top) - margin, + Math.max(coords.left, endCoords.left), + Math.max(coords.bottom, endCoords.bottom) + margin); + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; + if (scrollPos.scrollTop != null) { + setScrollTop(cm, scrollPos.scrollTop); + if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; } + if (scrollPos.scrollLeft != null) { + setScrollLeft(cm, scrollPos.scrollLeft); + if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; + } + if (!changed) break; + } + return coords; + } - // Build up a reverse change object to add to the opposite history - // stack (redo when undoing, and vice versa). - var antiChanges = []; - pushSelectionToHistory(selAfter, dest); - dest.push({ changes: antiChanges, generation: hist.generation }); - hist.generation = event.generation || ++hist.maxGeneration; + // Scroll a given set of coordinates into view (immediately). + function scrollIntoView(cm, x1, y1, x2, y2) { + var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); + if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); + if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); + } - var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); + // Calculate a new scroll position needed to scroll the given + // rectangle into view. Returns an object with scrollTop and + // scrollLeft properties. When these are undefined, the + // vertical/horizontal position does not need to be adjusted. + function calculateScrollPos(cm, x1, y1, x2, y2) { + var display = cm.display, snapMargin = textHeight(cm.display); + if (y1 < 0) y1 = 0; + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; + var screen = displayHeight(cm), result = {}; + if (y2 - y1 > screen) y2 = y1 + screen; + var docBottom = cm.doc.height + paddingVert(display); + var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; + if (y1 < screentop) { + result.scrollTop = atTop ? 0 : y1; + } else if (y2 > screentop + screen) { + var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); + if (newTop != screentop) result.scrollTop = newTop; + } - for (var i = event.changes.length - 1; i >= 0; --i) { - var change = event.changes[i]; - change.origin = type; - if (filter && !filterChange(doc, change, false)) { - source.length = 0; + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; + var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); + var tooWide = x2 - x1 > screenw; + if (tooWide) x2 = x1 + screenw; + if (x1 < 10) + result.scrollLeft = 0; + else if (x1 < screenleft) + result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10)); + else if (x2 > screenw + screenleft - 3) + result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw; + return result; + } + + // Store a relative adjustment to the scroll position in the current + // operation (to be applied when the operation finishes). + function addToScrollPos(cm, left, top) { + if (left != null || top != null) resolveScrollToPos(cm); + if (left != null) + cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; + if (top != null) + cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; + } + + // Make sure that at the end of the operation the current cursor is + // shown. + function ensureCursorVisible(cm) { + resolveScrollToPos(cm); + var cur = cm.getCursor(), from = cur, to = cur; + if (!cm.options.lineWrapping) { + from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; + to = Pos(cur.line, cur.ch + 1); + } + cm.curOp.scrollToPos = { from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true }; + } + + // When an operation has its scrollToPos property set, and another + // scroll action is applied before the end of the operation, this + // 'simulates' scrolling that position into view in a cheap way, so + // that the effect of intermediate scroll commands is not ignored. + function resolveScrollToPos(cm) { + var range = cm.curOp.scrollToPos; + if (range) { + cm.curOp.scrollToPos = null; + var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); + var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), + Math.min(from.top, to.top) - range.margin, + Math.max(from.right, to.right), + Math.max(from.bottom, to.bottom) + range.margin); + cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + } + + // API UTILITIES + + // Indent the given line. The how parameter can be "smart", + // "add"/null, "subtract", or "prev". When aggressive is false + // (typically set to true for forced single-line indents), empty + // lines are not indented, and places where the mode returns Pass + // are left alone. + function indentLine(cm, n, how, aggressive) { + var doc = cm.doc, state; + if (how == null) how = "add"; + if (how == "smart") { + // Fall back to "prev" when the mode doesn't have an indentation + // method. + if (!doc.mode.indent) how = "prev"; + else state = getStateBefore(cm, n); + } + + var tabSize = cm.options.tabSize; + var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); + if (line.stateAfter) line.stateAfter = null; + var curSpaceString = line.text.match(/^\s*/)[0], indentation; + if (!aggressive && !/\S/.test(line.text)) { + indentation = 0; + how = "not"; + } else if (how == "smart") { + indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); + if (indentation == Pass || indentation > 150) { + if (!aggressive) return; + how = "prev"; + } + } + if (how == "prev") { + if (n > doc.first) indentation = countColumn(getLine(doc, n - 1).text, null, tabSize); + else indentation = 0; + } else if (how == "add") { + indentation = curSpace + cm.options.indentUnit; + } else if (how == "subtract") { + indentation = curSpace - cm.options.indentUnit; + } else if (typeof how == "number") { + indentation = curSpace + how; + } + indentation = Math.max(0, indentation); + + var indentString = "", pos = 0; + if (cm.options.indentWithTabs) + for (var i = Math.floor(indentation / tabSize); i; --i) { pos += tabSize; indentString += "\t"; } + if (pos < indentation) indentString += spaceStr(indentation - pos); + + if (indentString != curSpaceString) { + replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); + line.stateAfter = null; + return true; + } else { + // Ensure that, if the cursor was in the whitespace at the start + // of the line, it is moved to the end of that space. + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos = Pos(n, curSpaceString.length); + replaceOneSelection(doc, i, new Range(pos, pos)); + break; + } + } + } + } + + // Utility for applying a change to a line by handle or number, + // returning the number and optionally registering the line as + // changed. + function changeLine(doc, handle, changeType, op) { + var no = handle, line = handle; + if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); + else no = lineNo(handle); + if (no == null) return null; + if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType); + return line; + } + + // Helper for deleting text near the selection(s), used to implement + // backspace, delete, and similar functionality. + function deleteNearSelection(cm, compute) { + var ranges = cm.doc.sel.ranges, kill = []; + // Build up a set of ranges to kill first, merging overlapping + // ranges. + for (var i = 0; i < ranges.length; i++) { + var toKill = compute(ranges[i]); + while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { + var replaced = kill.pop(); + if (cmp(replaced.from, toKill.from) < 0) { + toKill.from = replaced.from; + break; + } + } + kill.push(toKill); + } + // Next, remove those actual ranges. + runInOp(cm, function () { + for (var i = kill.length - 1; i >= 0; i--) + replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); + ensureCursorVisible(cm); + }); + } + + // Used for horizontal relative motion. Dir is -1 or 1 (left or + // right), unit can be "char", "column" (like char, but doesn't + // cross line boundaries), "word" (across next word), or "group" (to + // the start of next group of word or non-word-non-whitespace + // chars). The visually param controls whether, in right-to-left + // text, direction 1 means to move towards the next index in the + // string, or towards the character to the right of the current + // position. The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosH(doc, pos, dir, unit, visually) { + var line = pos.line, ch = pos.ch, origDir = dir; + var lineObj = getLine(doc, line); + function findNextLine() { + var l = line + dir; + if (l < doc.first || l >= doc.first + doc.size) return false + line = l; + return lineObj = getLine(doc, l); + } + function moveOnce(boundToLine) { + var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); + if (next == null) { + if (!boundToLine && findNextLine()) { + if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); + else ch = dir < 0 ? lineObj.text.length : 0; + } else return false + } else ch = next; + return true; + } + + if (unit == "char") { + moveOnce() + } else if (unit == "column") { + moveOnce(true) + } else if (unit == "word" || unit == "group") { + var sawType = null, group = unit == "group"; + var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); + for (var first = true; ; first = false) { + if (dir < 0 && !moveOnce(!first)) break; + var cur = lineObj.text.charAt(ch) || "\n"; + var type = isWordChar(cur, helper) ? "w" + : group && cur == "\n" ? "n" + : !group || /\s/.test(cur) ? null + : "p"; + if (group && !first && !type) type = "s"; + if (sawType && sawType != type) { + if (dir < 0) { dir = 1; moveOnce(); } + break; + } + + if (type) sawType = type; + if (dir > 0 && !moveOnce(!first)) break; + } + } + var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true); + if (!cmp(pos, result)) result.hitSide = true; + return result; + } + + // For relative vertical movement. Dir may be -1 or 1. Unit can be + // "page" or "line". The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosV(cm, pos, dir, unit) { + var doc = cm.doc, x = pos.left, y; + if (unit == "page") { + var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); + y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3; + } + for (; ;) { + var target = coordsChar(cm, x, y); + if (!target.outside) break; + if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } + y += dir * 5; + } + return target; + } + + // EDITOR METHODS + + // The publicly visible API. Note that methodOp(f) means + // 'wrap f in an operation, performed on its `this` parameter'. + + // This is not the complete set of editor methods. Most of the + // methods defined on the Doc type are also injected into + // CodeMirror.prototype, for backwards compatibility and + // convenience. + + CodeMirror.prototype = { + constructor: CodeMirror, + focus: function () { window.focus(); this.display.input.focus(); }, + + setOption: function (option, value) { + var options = this.options, old = options[option]; + if (options[option] == value && option != "mode") return; + options[option] = value; + if (optionHandlers.hasOwnProperty(option)) + operation(this, optionHandlers[option])(this, value, old); + }, + + getOption: function (option) { return this.options[option]; }, + getDoc: function () { return this.doc; }, + + addKeyMap: function (map, bottom) { + this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map)); + }, + removeKeyMap: function (map) { + var maps = this.state.keyMaps; + for (var i = 0; i < maps.length; ++i) + if (maps[i] == map || maps[i].name == map) { + maps.splice(i, 1); + return true; + } + }, + + addOverlay: methodOp(function (spec, options) { + var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); + if (mode.startState) throw new Error("Overlays may not be stateful."); + this.state.overlays.push({ mode: mode, modeSpec: spec, opaque: options && options.opaque }); + this.state.modeGen++; + regChange(this); + }), + removeOverlay: methodOp(function (spec) { + var overlays = this.state.overlays; + for (var i = 0; i < overlays.length; ++i) { + var cur = overlays[i].modeSpec; + if (cur == spec || typeof spec == "string" && cur.name == spec) { + overlays.splice(i, 1); + this.state.modeGen++; + regChange(this); return; } - - antiChanges.push(historyChangeFromChange(doc, change)); - - var after = i ? computeSelAfterChange(doc, change) : lst(source); - makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); - if (!i && doc.cm) doc.cm.scrollIntoView({ from: change.from, to: changeEnd(change) }); - var rebased = []; - - // Propagate to the linked documents - linkedDocs(doc, function (doc, sharedHist) { - if (!sharedHist && indexOf(rebased, doc.history) == -1) { - rebaseHist(doc.history, change); - rebased.push(doc.history); - } - makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); - }); } - } + }), - // Sub-views need their line numbers shifted when text is added - // above or below them in the parent document. - function shiftDoc(doc, distance) { - if (distance == 0) return; - doc.first += distance; - doc.sel = new Selection(map(doc.sel.ranges, function (range) { - return new Range(Pos(range.anchor.line + distance, range.anchor.ch), - Pos(range.head.line + distance, range.head.ch)); - }), doc.sel.primIndex); - if (doc.cm) { - regChange(doc.cm, doc.first, doc.first - distance, distance); - for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) - regLineChange(doc.cm, l, "gutter"); + indentLine: methodOp(function (n, dir, aggressive) { + if (typeof dir != "string" && typeof dir != "number") { + if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; + else dir = dir ? "add" : "subtract"; } - } - - // More lower-level change function, handling only a single document - // (not linked ones). - function makeChangeSingleDoc(doc, change, selAfter, spans) { - if (doc.cm && !doc.cm.curOp) - return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans); - - if (change.to.line < doc.first) { - shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); - return; - } - if (change.from.line > doc.lastLine()) return; - - // Clip the change to the size of this doc - if (change.from.line < doc.first) { - var shift = change.text.length - 1 - (doc.first - change.from.line); - shiftDoc(doc, shift); - change = { - from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), - text: [lst(change.text)], origin: change.origin - }; - } - var last = doc.lastLine(); - if (change.to.line > last) { - change = { - from: change.from, to: Pos(last, getLine(doc, last).text.length), - text: [change.text[0]], origin: change.origin - }; - } - - change.removed = getBetween(doc, change.from, change.to); - - if (!selAfter) selAfter = computeSelAfterChange(doc, change); - if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans); - else updateDoc(doc, change, spans); - setSelectionNoUndo(doc, selAfter, sel_dontScroll); - } - - // Handle the interaction of a change to a document with the editor - // that this document is part of. - function makeChangeSingleDocInEditor(cm, change, spans) { - var doc = cm.doc, display = cm.display, from = change.from, to = change.to; - - var recomputeMaxLength = false, checkWidthStart = from.line; - if (!cm.options.lineWrapping) { - checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); - doc.iter(checkWidthStart, to.line + 1, function (line) { - if (line == display.maxLine) { - recomputeMaxLength = true; - return true; - } - }); - } - - if (doc.sel.contains(change.from, change.to) > -1) - signalCursorActivity(cm); - - updateDoc(doc, change, spans, estimateHeight(cm)); - - if (!cm.options.lineWrapping) { - doc.iter(checkWidthStart, from.line + change.text.length, function (line) { - var len = lineLength(line); - if (len > display.maxLineLength) { - display.maxLine = line; - display.maxLineLength = len; - display.maxLineChanged = true; - recomputeMaxLength = false; - } - }); - if (recomputeMaxLength) cm.curOp.updateMaxLine = true; - } - - // Adjust frontier, schedule worker - doc.frontier = Math.min(doc.frontier, from.line); - startWorker(cm, 400); - - var lendiff = change.text.length - (to.line - from.line) - 1; - // Remember that these lines changed, for updating the display - if (change.full) - regChange(cm); - else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) - regLineChange(cm, from.line, "text"); - else - regChange(cm, from.line, to.line + 1, lendiff); - - var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); - if (changeHandler || changesHandler) { - var obj = { - from: from, to: to, - text: change.text, - removed: change.removed, - origin: change.origin - }; - if (changeHandler) signalLater(cm, "change", cm, obj); - if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); - } - cm.display.selForContextMenu = null; - } - - function replaceRange(doc, code, from, to, origin) { - if (!to) to = from; - if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; } - if (typeof code == "string") code = doc.splitLines(code); - makeChange(doc, { from: from, to: to, text: code, origin: origin }); - } - - // SCROLLING THINGS INTO VIEW - - // If an editor sits on the top or bottom of the window, partially - // scrolled out of view, this ensures that the cursor is visible. - function maybeScrollWindow(cm, coords) { - if (signalDOMEvent(cm, "scrollCursorIntoView")) return; - - var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; - if (coords.top + box.top < 0) doScroll = true; - else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false; - if (doScroll != null && !phantom) { - var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " + - (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " + - (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " + - coords.left + "px; width: 2px;"); - cm.display.lineSpace.appendChild(scrollNode); - scrollNode.scrollIntoView(doScroll); - cm.display.lineSpace.removeChild(scrollNode); - } - } - - // Scroll a given position into view (immediately), verifying that - // it actually became visible (as line heights are accurately - // measured, the position of something may 'drift' during drawing). - function scrollPosIntoView(cm, pos, end, margin) { - if (margin == null) margin = 0; - for (var limit = 0; limit < 5; limit++) { - var changed = false, coords = cursorCoords(cm, pos); - var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); - var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left), - Math.min(coords.top, endCoords.top) - margin, - Math.max(coords.left, endCoords.left), - Math.max(coords.bottom, endCoords.bottom) + margin); - var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; - if (scrollPos.scrollTop != null) { - setScrollTop(cm, scrollPos.scrollTop); - if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true; - } - if (scrollPos.scrollLeft != null) { - setScrollLeft(cm, scrollPos.scrollLeft); - if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true; - } - if (!changed) break; - } - return coords; - } - - // Scroll a given set of coordinates into view (immediately). - function scrollIntoView(cm, x1, y1, x2, y2) { - var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2); - if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop); - if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft); - } - - // Calculate a new scroll position needed to scroll the given - // rectangle into view. Returns an object with scrollTop and - // scrollLeft properties. When these are undefined, the - // vertical/horizontal position does not need to be adjusted. - function calculateScrollPos(cm, x1, y1, x2, y2) { - var display = cm.display, snapMargin = textHeight(cm.display); - if (y1 < 0) y1 = 0; - var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; - var screen = displayHeight(cm), result = {}; - if (y2 - y1 > screen) y2 = y1 + screen; - var docBottom = cm.doc.height + paddingVert(display); - var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin; - if (y1 < screentop) { - result.scrollTop = atTop ? 0 : y1; - } else if (y2 > screentop + screen) { - var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen); - if (newTop != screentop) result.scrollTop = newTop; - } - - var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; - var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); - var tooWide = x2 - x1 > screenw; - if (tooWide) x2 = x1 + screenw; - if (x1 < 10) - result.scrollLeft = 0; - else if (x1 < screenleft) - result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10)); - else if (x2 > screenw + screenleft - 3) - result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw; - return result; - } - - // Store a relative adjustment to the scroll position in the current - // operation (to be applied when the operation finishes). - function addToScrollPos(cm, left, top) { - if (left != null || top != null) resolveScrollToPos(cm); - if (left != null) - cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left; - if (top != null) - cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; - } - - // Make sure that at the end of the operation the current cursor is - // shown. - function ensureCursorVisible(cm) { - resolveScrollToPos(cm); - var cur = cm.getCursor(), from = cur, to = cur; - if (!cm.options.lineWrapping) { - from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur; - to = Pos(cur.line, cur.ch + 1); - } - cm.curOp.scrollToPos = { from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true }; - } - - // When an operation has its scrollToPos property set, and another - // scroll action is applied before the end of the operation, this - // 'simulates' scrolling that position into view in a cheap way, so - // that the effect of intermediate scroll commands is not ignored. - function resolveScrollToPos(cm) { - var range = cm.curOp.scrollToPos; - if (range) { - cm.curOp.scrollToPos = null; - var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); - var sPos = calculateScrollPos(cm, Math.min(from.left, to.left), - Math.min(from.top, to.top) - range.margin, - Math.max(from.right, to.right), - Math.max(from.bottom, to.bottom) + range.margin); - cm.scrollTo(sPos.scrollLeft, sPos.scrollTop); - } - } - - // API UTILITIES - - // Indent the given line. The how parameter can be "smart", - // "add"/null, "subtract", or "prev". When aggressive is false - // (typically set to true for forced single-line indents), empty - // lines are not indented, and places where the mode returns Pass - // are left alone. - function indentLine(cm, n, how, aggressive) { - var doc = cm.doc, state; - if (how == null) how = "add"; - if (how == "smart") { - // Fall back to "prev" when the mode doesn't have an indentation - // method. - if (!doc.mode.indent) how = "prev"; - else state = getStateBefore(cm, n); - } - - var tabSize = cm.options.tabSize; - var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); - if (line.stateAfter) line.stateAfter = null; - var curSpaceString = line.text.match(/^\s*/)[0], indentation; - if (!aggressive && !/\S/.test(line.text)) { - indentation = 0; - how = "not"; - } else if (how == "smart") { - indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); - if (indentation == Pass || indentation > 150) { - if (!aggressive) return; - how = "prev"; - } - } - if (how == "prev") { - if (n > doc.first) indentation = countColumn(getLine(doc, n - 1).text, null, tabSize); - else indentation = 0; - } else if (how == "add") { - indentation = curSpace + cm.options.indentUnit; - } else if (how == "subtract") { - indentation = curSpace - cm.options.indentUnit; - } else if (typeof how == "number") { - indentation = curSpace + how; - } - indentation = Math.max(0, indentation); - - var indentString = "", pos = 0; - if (cm.options.indentWithTabs) - for (var i = Math.floor(indentation / tabSize); i; --i) { pos += tabSize; indentString += "\t"; } - if (pos < indentation) indentString += spaceStr(indentation - pos); - - if (indentString != curSpaceString) { - replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); - line.stateAfter = null; - return true; - } else { - // Ensure that, if the cursor was in the whitespace at the start - // of the line, it is moved to the end of that space. - for (var i = 0; i < doc.sel.ranges.length; i++) { - var range = doc.sel.ranges[i]; - if (range.head.line == n && range.head.ch < curSpaceString.length) { - var pos = Pos(n, curSpaceString.length); - replaceOneSelection(doc, i, new Range(pos, pos)); - break; - } - } - } - } - - // Utility for applying a change to a line by handle or number, - // returning the number and optionally registering the line as - // changed. - function changeLine(doc, handle, changeType, op) { - var no = handle, line = handle; - if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle)); - else no = lineNo(handle); - if (no == null) return null; - if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType); - return line; - } - - // Helper for deleting text near the selection(s), used to implement - // backspace, delete, and similar functionality. - function deleteNearSelection(cm, compute) { - var ranges = cm.doc.sel.ranges, kill = []; - // Build up a set of ranges to kill first, merging overlapping - // ranges. + if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); + }), + indentSelection: methodOp(function (how) { + var ranges = this.doc.sel.ranges, end = -1; for (var i = 0; i < ranges.length; i++) { - var toKill = compute(ranges[i]); - while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { - var replaced = kill.pop(); - if (cmp(replaced.from, toKill.from) < 0) { - toKill.from = replaced.from; - break; - } + var range = ranges[i]; + if (!range.empty()) { + var from = range.from(), to = range.to(); + var start = Math.max(end, from.line); + end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; + for (var j = start; j < end; ++j) + indentLine(this, j, how); + var newRanges = this.doc.sel.ranges; + if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) + replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); + } else if (range.head.line > end) { + indentLine(this, range.head.line, how, true); + end = range.head.line; + if (i == this.doc.sel.primIndex) ensureCursorVisible(this); } - kill.push(toKill); } - // Next, remove those actual ranges. + }), + + // Fetch the parser token for a given character. Useful for hacks + // that want to inspect the mode state (say, for completion). + getTokenAt: function (pos, precise) { + return takeToken(this, pos, precise); + }, + + getLineTokens: function (line, precise) { + return takeToken(this, Pos(line), precise, true); + }, + + getTokenTypeAt: function (pos) { + pos = clipPos(this.doc, pos); + var styles = getLineStyles(this, getLine(this.doc, pos.line)); + var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; + var type; + if (ch == 0) type = styles[2]; + else for (; ;) { + var mid = (before + after) >> 1; + if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; + else if (styles[mid * 2 + 1] < ch) before = mid + 1; + else { type = styles[mid * 2 + 2]; break; } + } + var cut = type ? type.indexOf("cm-overlay ") : -1; + return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1); + }, + + getModeAt: function (pos) { + var mode = this.doc.mode; + if (!mode.innerMode) return mode; + return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode; + }, + + getHelper: function (pos, type) { + return this.getHelpers(pos, type)[0]; + }, + + getHelpers: function (pos, type) { + var found = []; + if (!helpers.hasOwnProperty(type)) return found; + var help = helpers[type], mode = this.getModeAt(pos); + if (typeof mode[type] == "string") { + if (help[mode[type]]) found.push(help[mode[type]]); + } else if (mode[type]) { + for (var i = 0; i < mode[type].length; i++) { + var val = help[mode[type][i]]; + if (val) found.push(val); + } + } else if (mode.helperType && help[mode.helperType]) { + found.push(help[mode.helperType]); + } else if (help[mode.name]) { + found.push(help[mode.name]); + } + for (var i = 0; i < help._global.length; i++) { + var cur = help._global[i]; + if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) + found.push(cur.val); + } + return found; + }, + + getStateAfter: function (line, precise) { + var doc = this.doc; + line = clipLine(doc, line == null ? doc.first + doc.size - 1 : line); + return getStateBefore(this, line + 1, precise); + }, + + cursorCoords: function (start, mode) { + var pos, range = this.doc.sel.primary(); + if (start == null) pos = range.head; + else if (typeof start == "object") pos = clipPos(this.doc, start); + else pos = start ? range.from() : range.to(); + return cursorCoords(this, pos, mode || "page"); + }, + + charCoords: function (pos, mode) { + return charCoords(this, clipPos(this.doc, pos), mode || "page"); + }, + + coordsChar: function (coords, mode) { + coords = fromCoordSystem(this, coords, mode || "page"); + return coordsChar(this, coords.left, coords.top); + }, + + lineAtHeight: function (height, mode) { + height = fromCoordSystem(this, { top: height, left: 0 }, mode || "page").top; + return lineAtHeight(this.doc, height + this.display.viewOffset); + }, + heightAtLine: function (line, mode) { + var end = false, lineObj; + if (typeof line == "number") { + var last = this.doc.first + this.doc.size - 1; + if (line < this.doc.first) line = this.doc.first; + else if (line > last) { line = last; end = true; } + lineObj = getLine(this.doc, line); + } else { + lineObj = line; + } + return intoCoordSystem(this, lineObj, { top: 0, left: 0 }, mode || "page").top + + (end ? this.doc.height - heightAtLine(lineObj) : 0); + }, + + defaultTextHeight: function () { return textHeight(this.display); }, + defaultCharWidth: function () { return charWidth(this.display); }, + + setGutterMarker: methodOp(function (line, gutterID, value) { + return changeLine(this.doc, line, "gutter", function (line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}); + markers[gutterID] = value; + if (!value && isEmpty(markers)) line.gutterMarkers = null; + return true; + }); + }), + + clearGutter: methodOp(function (gutterID) { + var cm = this, doc = cm.doc, i = doc.first; + doc.iter(function (line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + line.gutterMarkers[gutterID] = null; + regLineChange(cm, i, "gutter"); + if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; + } + ++i; + }); + }), + + lineInfo: function (line) { + if (typeof line == "number") { + if (!isLine(this.doc, line)) return null; + var n = line; + line = getLine(this.doc, line); + if (!line) return null; + } else { + var n = lineNo(line); + if (n == null) return null; + } + return { + line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, + textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, + widgets: line.widgets + }; + }, + + getViewport: function () { return { from: this.display.viewFrom, to: this.display.viewTo }; }, + + addWidget: function (pos, node, scroll, vert, horiz) { + var display = this.display; + pos = cursorCoords(this, clipPos(this.doc, pos)); + var top = pos.bottom, left = pos.left; + node.style.position = "absolute"; + node.setAttribute("cm-ignore-events", "true"); + this.display.input.setUneditable(node); + display.sizer.appendChild(node); + if (vert == "over") { + top = pos.top; + } else if (vert == "above" || vert == "near") { + var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); + // Default to positioning above (if specified and possible); otherwise default to positioning below + if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) + top = pos.top - node.offsetHeight; + else if (pos.bottom + node.offsetHeight <= vspace) + top = pos.bottom; + if (left + node.offsetWidth > hspace) + left = hspace - node.offsetWidth; + } + node.style.top = top + "px"; + node.style.left = node.style.right = ""; + if (horiz == "right") { + left = display.sizer.clientWidth - node.offsetWidth; + node.style.right = "0px"; + } else { + if (horiz == "left") left = 0; + else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; + node.style.left = left + "px"; + } + if (scroll) + scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); + }, + + triggerOnKeyDown: methodOp(onKeyDown), + triggerOnKeyPress: methodOp(onKeyPress), + triggerOnKeyUp: onKeyUp, + + execCommand: function (cmd) { + if (commands.hasOwnProperty(cmd)) + return commands[cmd].call(null, this); + }, + + triggerElectric: methodOp(function (text) { triggerElectric(this, text); }), + + findPosH: function (from, amount, unit, visually) { + var dir = 1; + if (amount < 0) { dir = -1; amount = -amount; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + cur = findPosH(this.doc, cur, dir, unit, visually); + if (cur.hitSide) break; + } + return cur; + }, + + moveH: methodOp(function (dir, unit) { + var cm = this; + cm.extendSelectionsBy(function (range) { + if (cm.display.shift || cm.doc.extend || range.empty()) + return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually); + else + return dir < 0 ? range.from() : range.to(); + }, sel_move); + }), + + deleteH: methodOp(function (dir, unit) { + var sel = this.doc.sel, doc = this.doc; + if (sel.somethingSelected()) + doc.replaceSelection("", null, "+delete"); + else + deleteNearSelection(this, function (range) { + var other = findPosH(doc, range.head, dir, unit, false); + return dir < 0 ? { from: other, to: range.head } : { from: range.head, to: other }; + }); + }), + + findPosV: function (from, amount, unit, goalColumn) { + var dir = 1, x = goalColumn; + if (amount < 0) { dir = -1; amount = -amount; } + for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { + var coords = cursorCoords(this, cur, "div"); + if (x == null) x = coords.left; + else coords.left = x; + cur = findPosV(this, coords, dir, unit); + if (cur.hitSide) break; + } + return cur; + }, + + moveV: methodOp(function (dir, unit) { + var cm = this, doc = this.doc, goals = []; + var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); + doc.extendSelectionsBy(function (range) { + if (collapse) + return dir < 0 ? range.from() : range.to(); + var headPos = cursorCoords(cm, range.head, "div"); + if (range.goalColumn != null) headPos.left = range.goalColumn; + goals.push(headPos.left); + var pos = findPosV(cm, headPos, dir, unit); + if (unit == "page" && range == doc.sel.primary()) + addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top); + return pos; + }, sel_move); + if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++) + doc.sel.ranges[i].goalColumn = goals[i]; + }), + + // Find the word at the given position (as returned by coordsChar). + findWordAt: function (pos) { + var doc = this.doc, line = getLine(doc, pos.line).text; + var start = pos.ch, end = pos.ch; + if (line) { + var helper = this.getHelper(pos, "wordChars"); + if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; + var startChar = line.charAt(start); + var check = isWordChar(startChar, helper) + ? function (ch) { return isWordChar(ch, helper); } + : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } + : function (ch) { return !/\s/.test(ch) && !isWordChar(ch); }; + while (start > 0 && check(line.charAt(start - 1))) --start; + while (end < line.length && check(line.charAt(end))) ++end; + } + return new Range(Pos(pos.line, start), Pos(pos.line, end)); + }, + + toggleOverwrite: function (value) { + if (value != null && value == this.state.overwrite) return; + if (this.state.overwrite = !this.state.overwrite) + addClass(this.display.cursorDiv, "CodeMirror-overwrite"); + else + rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); + + signal(this, "overwriteToggle", this, this.state.overwrite); + }, + hasFocus: function () { return this.display.input.getField() == activeElt(); }, + isReadOnly: function () { return !!(this.options.readOnly || this.doc.cantEdit); }, + + scrollTo: methodOp(function (x, y) { + if (x != null || y != null) resolveScrollToPos(this); + if (x != null) this.curOp.scrollLeft = x; + if (y != null) this.curOp.scrollTop = y; + }), + getScrollInfo: function () { + var scroller = this.display.scroller; + return { + left: scroller.scrollLeft, top: scroller.scrollTop, + height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, + width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, + clientHeight: displayHeight(this), clientWidth: displayWidth(this) + }; + }, + + scrollIntoView: methodOp(function (range, margin) { + if (range == null) { + range = { from: this.doc.sel.primary().head, to: null }; + if (margin == null) margin = this.options.cursorScrollMargin; + } else if (typeof range == "number") { + range = { from: Pos(range, 0), to: null }; + } else if (range.from == null) { + range = { from: range, to: null }; + } + if (!range.to) range.to = range.from; + range.margin = margin || 0; + + if (range.from.line != null) { + resolveScrollToPos(this); + this.curOp.scrollToPos = range; + } else { + var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), + Math.min(range.from.top, range.to.top) - range.margin, + Math.max(range.from.right, range.to.right), + Math.max(range.from.bottom, range.to.bottom) + range.margin); + this.scrollTo(sPos.scrollLeft, sPos.scrollTop); + } + }), + + setSize: methodOp(function (width, height) { + var cm = this; + function interpret(val) { + return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; + } + if (width != null) cm.display.wrapper.style.width = interpret(width); + if (height != null) cm.display.wrapper.style.height = interpret(height); + if (cm.options.lineWrapping) clearLineMeasurementCache(this); + var lineNo = cm.display.viewFrom; + cm.doc.iter(lineNo, cm.display.viewTo, function (line) { + if (line.widgets) for (var i = 0; i < line.widgets.length; i++) + if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; } + ++lineNo; + }); + cm.curOp.forceUpdate = true; + signal(cm, "refresh", this); + }), + + operation: function (f) { return runInOp(this, f); }, + + refresh: methodOp(function () { + var oldHeight = this.display.cachedTextHeight; + regChange(this); + this.curOp.forceUpdate = true; + clearCaches(this); + this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); + updateGutterSpace(this); + if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) + estimateLineHeights(this); + signal(this, "refresh", this); + }), + + swapDoc: methodOp(function (doc) { + var old = this.doc; + old.cm = null; + attachDoc(this, doc); + clearCaches(this); + this.display.input.reset(); + this.scrollTo(doc.scrollLeft, doc.scrollTop); + this.curOp.forceScroll = true; + signalLater(this, "swapDoc", this, old); + return old; + }), + + getInputField: function () { return this.display.input.getField(); }, + getWrapperElement: function () { return this.display.wrapper; }, + getScrollerElement: function () { return this.display.scroller; }, + getGutterElement: function () { return this.display.gutters; } + }; + eventMixin(CodeMirror); + + // OPTION DEFAULTS + + // The default configuration options. + var defaults = CodeMirror.defaults = {}; + // Functions to run when options are changed. + var optionHandlers = CodeMirror.optionHandlers = {}; + + function option(name, deflt, handle, notOnInit) { + CodeMirror.defaults[name] = deflt; + if (handle) optionHandlers[name] = + notOnInit ? function (cm, val, old) { if (old != Init) handle(cm, val, old); } : handle; + } + + // Passed to option handlers when there is no old value. + var Init = CodeMirror.Init = { toString: function () { return "CodeMirror.Init"; } }; + + // These two are, on init, called from the constructor because they + // have to be initialized before the editor can start at all. + option("value", "", function (cm, val) { + cm.setValue(val); + }, true); + option("mode", null, function (cm, val) { + cm.doc.modeOption = val; + loadMode(cm); + }, true); + + option("indentUnit", 2, loadMode, true); + option("indentWithTabs", false); + option("smartIndent", true); + option("tabSize", 4, function (cm) { + resetModeState(cm); + clearCaches(cm); + regChange(cm); + }, true); + option("lineSeparator", null, function (cm, val) { + cm.doc.lineSep = val; + if (!val) return; + var newBreaks = [], lineNo = cm.doc.first; + cm.doc.iter(function (line) { + for (var pos = 0; ;) { + var found = line.text.indexOf(val, pos); + if (found == -1) break; + pos = found + val.length; + newBreaks.push(Pos(lineNo, found)); + } + lineNo++; + }); + for (var i = newBreaks.length - 1; i >= 0; i--) + replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) + }); + option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) { + cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); + if (old != CodeMirror.Init) cm.refresh(); + }); + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { cm.refresh(); }, true); + option("electricChars", true); + option("inputStyle", mobile ? "contenteditable" : "textarea", function () { + throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME + }, true); + option("rtlMoveVisually", !windows); + option("wholeLineUpdateBefore", true); + + option("theme", "default", function (cm) { + themeChanged(cm); + guttersChanged(cm); + }, true); + option("keyMap", "default", function (cm, val, old) { + var next = getKeyMap(val); + var prev = old != CodeMirror.Init && getKeyMap(old); + if (prev && prev.detach) prev.detach(cm, next); + if (next.attach) next.attach(cm, prev || null); + }); + option("extraKeys", null); + + option("lineWrapping", false, wrappingChanged, true); + option("gutters", [], function (cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("fixedGutter", true, function (cm, val) { + cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; + cm.refresh(); + }, true); + option("coverGutterNextToScrollbar", false, function (cm) { updateScrollbars(cm); }, true); + option("scrollbarStyle", "native", function (cm) { + initScrollbars(cm); + updateScrollbars(cm); + cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); + cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); + }, true); + option("lineNumbers", false, function (cm) { + setGuttersForLineNumbers(cm.options); + guttersChanged(cm); + }, true); + option("firstLineNumber", 1, guttersChanged, true); + option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true); + option("showCursorWhenSelecting", false, updateSelection, true); + + option("resetSelectionOnContextMenu", true); + option("lineWiseCopyCut", true); + + option("readOnly", false, function (cm, val) { + if (val == "nocursor") { + onBlur(cm); + cm.display.input.blur(); + cm.display.disabled = true; + } else { + cm.display.disabled = false; + } + cm.display.input.readOnlyChanged(val) + }); + option("disableInput", false, function (cm, val) { if (!val) cm.display.input.reset(); }, true); + option("dragDrop", true, dragDropChanged); + option("allowDropFileTypes", null); + + option("cursorBlinkRate", 530); + option("cursorScrollMargin", 0); + option("cursorHeight", 1, updateSelection, true); + option("singleCursorHeightPerLine", true, updateSelection, true); + option("workTime", 100); + option("workDelay", 100); + option("flattenSpans", true, resetModeState, true); + option("addModeClass", false, resetModeState, true); + option("pollInterval", 100); + option("undoDepth", 200, function (cm, val) { cm.doc.history.undoDepth = val; }); + option("historyEventDelay", 1250); + option("viewportMargin", 10, function (cm) { cm.refresh(); }, true); + option("maxHighlightLength", 10000, resetModeState, true); + option("moveInputWithCursor", true, function (cm, val) { + if (!val) cm.display.input.resetPosition(); + }); + + option("tabindex", null, function (cm, val) { + cm.display.input.getField().tabIndex = val || ""; + }); + option("autofocus", null); + + // MODE DEFINITION AND QUERYING + + // Known modes, by name and by MIME + var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; + + // Extra arguments are stored as the mode's dependencies, which is + // used by (legacy) mechanisms like loadmode.js to automatically + // load a mode. (Preferred mechanism is the require/define calls.) + CodeMirror.defineMode = function (name, mode) { + if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; + if (arguments.length > 2) + mode.dependencies = Array.prototype.slice.call(arguments, 2); + modes[name] = mode; + }; + + CodeMirror.defineMIME = function (mime, spec) { + mimeModes[mime] = spec; + }; + + // Given a MIME type, a {name, ...options} config object, or a name + // string, return a mode config object. + CodeMirror.resolveMode = function (spec) { + if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { + spec = mimeModes[spec]; + } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { + var found = mimeModes[spec.name]; + if (typeof found == "string") found = { name: found }; + spec = createObj(found, spec); + spec.name = found.name; + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { + return CodeMirror.resolveMode("application/xml"); + } + if (typeof spec == "string") return { name: spec }; + else return spec || { name: "null" }; + }; + + // Given a mode spec (anything that resolveMode accepts), find and + // initialize an actual mode object. + CodeMirror.getMode = function (options, spec) { + var spec = CodeMirror.resolveMode(spec); + var mfactory = modes[spec.name]; + if (!mfactory) return CodeMirror.getMode(options, "text/plain"); + var modeObj = mfactory(options, spec); + if (modeExtensions.hasOwnProperty(spec.name)) { + var exts = modeExtensions[spec.name]; + for (var prop in exts) { + if (!exts.hasOwnProperty(prop)) continue; + if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; + modeObj[prop] = exts[prop]; + } + } + modeObj.name = spec.name; + if (spec.helperType) modeObj.helperType = spec.helperType; + if (spec.modeProps) for (var prop in spec.modeProps) + modeObj[prop] = spec.modeProps[prop]; + + return modeObj; + }; + + // Minimal default mode. + CodeMirror.defineMode("null", function () { + return { token: function (stream) { stream.skipToEnd(); } }; + }); + CodeMirror.defineMIME("text/plain", "null"); + + // This can be used to attach properties to mode objects from + // outside the actual mode definition. + var modeExtensions = CodeMirror.modeExtensions = {}; + CodeMirror.extendMode = function (mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); + copyObj(properties, exts); + }; + + // EXTENSIONS + + CodeMirror.defineExtension = function (name, func) { + CodeMirror.prototype[name] = func; + }; + CodeMirror.defineDocExtension = function (name, func) { + Doc.prototype[name] = func; + }; + CodeMirror.defineOption = option; + + var initHooks = []; + CodeMirror.defineInitHook = function (f) { initHooks.push(f); }; + + var helpers = CodeMirror.helpers = {}; + CodeMirror.registerHelper = function (type, name, value) { + if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = { _global: [] }; + helpers[type][name] = value; + }; + CodeMirror.registerGlobalHelper = function (type, name, predicate, value) { + CodeMirror.registerHelper(type, name, value); + helpers[type]._global.push({ pred: predicate, val: value }); + }; + + // MODE STATE HANDLING + + // Utility functions for working with state. Exported because nested + // modes need to do this for their inner modes. + + var copyState = CodeMirror.copyState = function (mode, state) { + if (state === true) return state; + if (mode.copyState) return mode.copyState(state); + var nstate = {}; + for (var n in state) { + var val = state[n]; + if (val instanceof Array) val = val.concat([]); + nstate[n] = val; + } + return nstate; + }; + + var startState = CodeMirror.startState = function (mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true; + }; + + // Given a mode and a state (for that mode), find the inner mode and + // state at the position that the state refers to. + CodeMirror.innerMode = function (mode, state) { + while (mode.innerMode) { + var info = mode.innerMode(state); + if (!info || info.mode == mode) break; + state = info.state; + mode = info.mode; + } + return info || { mode: mode, state: state }; + }; + + // STANDARD COMMANDS + + // Commands are parameter-less actions that can be performed on an + // editor, mostly used for keybindings. + var commands = CodeMirror.commands = { + selectAll: function (cm) { cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); }, + singleSelection: function (cm) { + cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); + }, + killLine: function (cm) { + deleteNearSelection(cm, function (range) { + if (range.empty()) { + var len = getLine(cm.doc, range.head.line).text.length; + if (range.head.ch == len && range.head.line < cm.lastLine()) + return { from: range.head, to: Pos(range.head.line + 1, 0) }; + else + return { from: range.head, to: Pos(range.head.line, len) }; + } else { + return { from: range.from(), to: range.to() }; + } + }); + }, + deleteLine: function (cm) { + deleteNearSelection(cm, function (range) { + return { + from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) + }; + }); + }, + delLineLeft: function (cm) { + deleteNearSelection(cm, function (range) { + return { from: Pos(range.from().line, 0), to: range.from() }; + }); + }, + delWrappedLineLeft: function (cm) { + deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var leftPos = cm.coordsChar({ left: 0, top: top }, "div"); + return { from: leftPos, to: range.from() }; + }); + }, + delWrappedLineRight: function (cm) { + deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var rightPos = cm.coordsChar({ left: cm.display.lineDiv.offsetWidth + 100, top: top }, "div"); + return { from: range.from(), to: rightPos }; + }); + }, + undo: function (cm) { cm.undo(); }, + redo: function (cm) { cm.redo(); }, + undoSelection: function (cm) { cm.undoSelection(); }, + redoSelection: function (cm) { cm.redoSelection(); }, + goDocStart: function (cm) { cm.extendSelection(Pos(cm.firstLine(), 0)); }, + goDocEnd: function (cm) { cm.extendSelection(Pos(cm.lastLine())); }, + goLineStart: function (cm) { + cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, + { origin: "+move", bias: 1 }); + }, + goLineStartSmart: function (cm) { + cm.extendSelectionsBy(function (range) { + return lineStartSmart(cm, range.head); + }, { origin: "+move", bias: 1 }); + }, + goLineEnd: function (cm) { + cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, + { origin: "+move", bias: -1 }); + }, + goLineRight: function (cm) { + cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({ left: cm.display.lineDiv.offsetWidth + 100, top: top }, "div"); + }, sel_move); + }, + goLineLeft: function (cm) { + cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + return cm.coordsChar({ left: 0, top: top }, "div"); + }, sel_move); + }, + goLineLeftSmart: function (cm) { + cm.extendSelectionsBy(function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var pos = cm.coordsChar({ left: 0, top: top }, "div"); + if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head); + return pos; + }, sel_move); + }, + goLineUp: function (cm) { cm.moveV(-1, "line"); }, + goLineDown: function (cm) { cm.moveV(1, "line"); }, + goPageUp: function (cm) { cm.moveV(-1, "page"); }, + goPageDown: function (cm) { cm.moveV(1, "page"); }, + goCharLeft: function (cm) { cm.moveH(-1, "char"); }, + goCharRight: function (cm) { cm.moveH(1, "char"); }, + goColumnLeft: function (cm) { cm.moveH(-1, "column"); }, + goColumnRight: function (cm) { cm.moveH(1, "column"); }, + goWordLeft: function (cm) { cm.moveH(-1, "word"); }, + goGroupRight: function (cm) { cm.moveH(1, "group"); }, + goGroupLeft: function (cm) { cm.moveH(-1, "group"); }, + goWordRight: function (cm) { cm.moveH(1, "word"); }, + delCharBefore: function (cm) { cm.deleteH(-1, "char"); }, + delCharAfter: function (cm) { cm.deleteH(1, "char"); }, + delWordBefore: function (cm) { cm.deleteH(-1, "word"); }, + delWordAfter: function (cm) { cm.deleteH(1, "word"); }, + delGroupBefore: function (cm) { cm.deleteH(-1, "group"); }, + delGroupAfter: function (cm) { cm.deleteH(1, "group"); }, + indentAuto: function (cm) { cm.indentSelection("smart"); }, + indentMore: function (cm) { cm.indentSelection("add"); }, + indentLess: function (cm) { cm.indentSelection("subtract"); }, + insertTab: function (cm) { cm.replaceSelection("\t"); }, + insertSoftTab: function (cm) { + var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; + for (var i = 0; i < ranges.length; i++) { + var pos = ranges[i].from(); + var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); + spaces.push(spaceStr(tabSize - col % tabSize)); + } + cm.replaceSelections(spaces); + }, + defaultTab: function (cm) { + if (cm.somethingSelected()) cm.indentSelection("add"); + else cm.execCommand("insertTab"); + }, + transposeChars: function (cm) { runInOp(cm, function () { - for (var i = kill.length - 1; i >= 0; i--) - replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); + var ranges = cm.listSelections(), newSel = []; + for (var i = 0; i < ranges.length; i++) { + var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; + if (line) { + if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1); + if (cur.ch > 0) { + cur = new Pos(cur.line, cur.ch + 1); + cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), + Pos(cur.line, cur.ch - 2), cur, "+transpose"); + } else if (cur.line > cm.doc.first) { + var prev = getLine(cm.doc, cur.line - 1).text; + if (prev) + cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + + prev.charAt(prev.length - 1), + Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose"); + } + } + newSel.push(new Range(cur, cur)); + } + cm.setSelections(newSel); + }); + }, + newlineAndIndent: function (cm) { + runInOp(cm, function () { + var len = cm.listSelections().length; + for (var i = 0; i < len; i++) { + var range = cm.listSelections()[i]; + cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input"); + cm.indentLine(range.from().line + 1, null, true); + } ensureCursorVisible(cm); }); + }, + openLine: function (cm) { cm.replaceSelection("\n", "start") }, + toggleOverwrite: function (cm) { cm.toggleOverwrite(); } + }; + + + // STANDARD KEYMAPS + + var keyMap = CodeMirror.keyMap = {}; + + keyMap.basic = { + "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", + "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", + "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", + "Tab": "defaultTab", "Shift-Tab": "indentAuto", + "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", + "Esc": "singleSelection" + }; + // Note that the save and find-related commands aren't defined by + // default. User code or addons can define them. Unknown commands + // are simply ignored. + keyMap.pcDefault = { + "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", + "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", + "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", + "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", + "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", + "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", + "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", + fallthrough: "basic" + }; + // Very basic readline/emacs-style bindings, which are standard on Mac. + keyMap.emacsy = { + "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", + "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", + "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", + "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", + "Ctrl-O": "openLine" + }; + keyMap.macDefault = { + "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", + "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", + "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", + "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", + "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", + "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", + "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", + fallthrough: ["basic", "emacsy"] + }; + keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; + + // KEYMAP DISPATCH + + function normalizeKeyName(name) { + var parts = name.split(/-(?!$)/), name = parts[parts.length - 1]; + var alt, ctrl, shift, cmd; + for (var i = 0; i < parts.length - 1; i++) { + var mod = parts[i]; + if (/^(cmd|meta|m)$/i.test(mod)) cmd = true; + else if (/^a(lt)?$/i.test(mod)) alt = true; + else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true; + else if (/^s(hift)$/i.test(mod)) shift = true; + else throw new Error("Unrecognized modifier name: " + mod); + } + if (alt) name = "Alt-" + name; + if (ctrl) name = "Ctrl-" + name; + if (cmd) name = "Cmd-" + name; + if (shift) name = "Shift-" + name; + return name; + } + + // This is a kludge to keep keymaps mostly working as raw objects + // (backwards compatibility) while at the same time support features + // like normalization and multi-stroke key bindings. It compiles a + // new normalized keymap, and then updates the old object to reflect + // this. + CodeMirror.normalizeKeyMap = function (keymap) { + var copy = {}; + for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) { + var value = keymap[keyname]; + if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue; + if (value == "...") { delete keymap[keyname]; continue; } + + var keys = map(keyname.split(" "), normalizeKeyName); + for (var i = 0; i < keys.length; i++) { + var val, name; + if (i == keys.length - 1) { + name = keys.join(" "); + val = value; + } else { + name = keys.slice(0, i + 1).join(" "); + val = "..."; + } + var prev = copy[name]; + if (!prev) copy[name] = val; + else if (prev != val) throw new Error("Inconsistent bindings for " + name); + } + delete keymap[keyname]; + } + for (var prop in copy) keymap[prop] = copy[prop]; + return keymap; + }; + + var lookupKey = CodeMirror.lookupKey = function (key, map, handle, context) { + map = getKeyMap(map); + var found = map.call ? map.call(key, context) : map[key]; + if (found === false) return "nothing"; + if (found === "...") return "multi"; + if (found != null && handle(found)) return "handled"; + + if (map.fallthrough) { + if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") + return lookupKey(key, map.fallthrough, handle, context); + for (var i = 0; i < map.fallthrough.length; i++) { + var result = lookupKey(key, map.fallthrough[i], handle, context); + if (result) return result; + } + } + }; + + // Modifier key presses don't count as 'real' key presses for the + // purpose of keymap fallthrough. + var isModifierKey = CodeMirror.isModifierKey = function (value) { + var name = typeof value == "string" ? value : keyNames[value.keyCode]; + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; + }; + + // Look up the name of a key as indicated by an event object. + var keyName = CodeMirror.keyName = function (event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) return false; + var base = keyNames[event.keyCode], name = base; + if (name == null || event.altGraphKey) return false; + if (event.altKey && base != "Alt") name = "Alt-" + name; + if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name; + if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name; + if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name; + return name; + }; + + function getKeyMap(val) { + return typeof val == "string" ? keyMap[val] : val; + } + + // FROMTEXTAREA + + CodeMirror.fromTextArea = function (textarea, options) { + options = options ? copyObj(options) : {}; + options.value = textarea.value; + if (!options.tabindex && textarea.tabIndex) + options.tabindex = textarea.tabIndex; + if (!options.placeholder && textarea.placeholder) + options.placeholder = textarea.placeholder; + // Set autofocus to true if this textarea is focused, or if it has + // autofocus and no other element is focused. + if (options.autofocus == null) { + var hasFocus = activeElt(); + options.autofocus = hasFocus == textarea || + textarea.getAttribute("autofocus") != null && hasFocus == document.body; } - // Used for horizontal relative motion. Dir is -1 or 1 (left or - // right), unit can be "char", "column" (like char, but doesn't - // cross line boundaries), "word" (across next word), or "group" (to - // the start of next group of word or non-word-non-whitespace - // chars). The visually param controls whether, in right-to-left - // text, direction 1 means to move towards the next index in the - // string, or towards the character to the right of the current - // position. The resulting position will have a hitSide=true - // property if it reached the end of the document. - function findPosH(doc, pos, dir, unit, visually) { - var line = pos.line, ch = pos.ch, origDir = dir; - var lineObj = getLine(doc, line); - function findNextLine() { - var l = line + dir; - if (l < doc.first || l >= doc.first + doc.size) return false - line = l; - return lineObj = getLine(doc, l); + function save() { textarea.value = cm.getValue(); } + if (textarea.form) { + on(textarea.form, "submit", save); + // Deplorable hack to make the submit method do the right thing. + if (!options.leaveSubmitMethodAlone) { + var form = textarea.form, realSubmit = form.submit; + try { + var wrappedSubmit = form.submit = function () { + save(); + form.submit = realSubmit; + form.submit(); + form.submit = wrappedSubmit; + }; + } catch (e) { } } - function moveOnce(boundToLine) { - var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true); - if (next == null) { - if (!boundToLine && findNextLine()) { - if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj); - else ch = dir < 0 ? lineObj.text.length : 0; - } else return false - } else ch = next; - return true; + } + + options.finishInit = function (cm) { + cm.save = save; + cm.getTextArea = function () { return textarea; }; + cm.toTextArea = function () { + cm.toTextArea = isNaN; // Prevent this from being ran twice + save(); + textarea.parentNode.removeChild(cm.getWrapperElement()); + textarea.style.display = ""; + if (textarea.form) { + off(textarea.form, "submit", save); + if (typeof textarea.form.submit == "function") + textarea.form.submit = realSubmit; + } + }; + }; + + textarea.style.display = "none"; + var cm = CodeMirror(function (node) { + textarea.parentNode.insertBefore(node, textarea.nextSibling); + }, options); + return cm; + }; + + // STRING STREAM + + // Fed to the mode parsers, provides helper functions to make + // parsers more succinct. + + var StringStream = CodeMirror.StringStream = function (string, tabSize) { + this.pos = this.start = 0; + this.string = string; + this.tabSize = tabSize || 8; + this.lastColumnPos = this.lastColumnValue = 0; + this.lineStart = 0; + }; + + StringStream.prototype = { + eol: function () { return this.pos >= this.string.length; }, + sol: function () { return this.pos == this.lineStart; }, + peek: function () { return this.string.charAt(this.pos) || undefined; }, + next: function () { + if (this.pos < this.string.length) + return this.string.charAt(this.pos++); + }, + eat: function (match) { + var ch = this.string.charAt(this.pos); + if (typeof match == "string") var ok = ch == match; + else var ok = ch && (match.test ? match.test(ch) : match(ch)); + if (ok) { ++this.pos; return ch; } + }, + eatWhile: function (match) { + var start = this.pos; + while (this.eat(match)) { } + return this.pos > start; + }, + eatSpace: function () { + var start = this.pos; + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; + return this.pos > start; + }, + skipToEnd: function () { this.pos = this.string.length; }, + skipTo: function (ch) { + var found = this.string.indexOf(ch, this.pos); + if (found > -1) { this.pos = found; return true; } + }, + backUp: function (n) { this.pos -= n; }, + column: function () { + if (this.lastColumnPos < this.start) { + this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); + this.lastColumnPos = this.start; } + return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + indentation: function () { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); + }, + match: function (pattern, consume, caseInsensitive) { + if (typeof pattern == "string") { + var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; + var substr = this.string.substr(this.pos, pattern.length); + if (cased(substr) == cased(pattern)) { + if (consume !== false) this.pos += pattern.length; + return true; + } + } else { + var match = this.string.slice(this.pos).match(pattern); + if (match && match.index > 0) return null; + if (match && consume !== false) this.pos += match[0].length; + return match; + } + }, + current: function () { return this.string.slice(this.start, this.pos); }, + hideFirstChars: function (n, inner) { + this.lineStart += n; + try { return inner(); } + finally { this.lineStart -= n; } + } + }; - if (unit == "char") { - moveOnce() - } else if (unit == "column") { - moveOnce(true) - } else if (unit == "word" || unit == "group") { - var sawType = null, group = unit == "group"; - var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); - for (var first = true; ; first = false) { - if (dir < 0 && !moveOnce(!first)) break; - var cur = lineObj.text.charAt(ch) || "\n"; - var type = isWordChar(cur, helper) ? "w" - : group && cur == "\n" ? "n" - : !group || /\s/.test(cur) ? null - : "p"; - if (group && !first && !type) type = "s"; - if (sawType && sawType != type) { - if (dir < 0) { dir = 1; moveOnce(); } - break; - } + // TEXTMARKERS - if (type) sawType = type; - if (dir > 0 && !moveOnce(!first)) break; + // Created with markText and setBookmark methods. A TextMarker is a + // handle that can be used to clear or find a marked position in the + // document. Line objects hold arrays (markedSpans) containing + // {from, to, marker} object pointing to such marker objects, and + // indicating that such a marker is present on that line. Multiple + // lines may point to the same marker when it spans across lines. + // The spans will have null for their from/to properties when the + // marker continues beyond the start/end of the line. Markers have + // links back to the lines they currently touch. + + var nextMarkerId = 0; + + var TextMarker = CodeMirror.TextMarker = function (doc, type) { + this.lines = []; + this.type = type; + this.doc = doc; + this.id = ++nextMarkerId; + }; + eventMixin(TextMarker); + + // Clear the marker. + TextMarker.prototype.clear = function () { + if (this.explicitlyCleared) return; + var cm = this.doc.cm, withOp = cm && !cm.curOp; + if (withOp) startOperation(cm); + if (hasHandler(this, "clear")) { + var found = this.find(); + if (found) signalLater(this, "clear", found.from, found.to); + } + var min = null, max = null; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text"); + else if (cm) { + if (span.to != null) max = lineNo(line); + if (span.from != null) min = lineNo(line); + } + line.markedSpans = removeMarkedSpan(line.markedSpans, span); + if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) + updateLineHeight(line, textHeight(cm.display)); + } + if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { + var visual = visualLine(this.lines[i]), len = lineLength(visual); + if (len > cm.display.maxLineLength) { + cm.display.maxLine = visual; + cm.display.maxLineLength = len; + cm.display.maxLineChanged = true; + } + } + + if (min != null && cm && this.collapsed) regChange(cm, min, max + 1); + this.lines.length = 0; + this.explicitlyCleared = true; + if (this.atomic && this.doc.cantEdit) { + this.doc.cantEdit = false; + if (cm) reCheckSelection(cm.doc); + } + if (cm) signalLater(cm, "markerCleared", cm, this); + if (withOp) endOperation(cm); + if (this.parent) this.parent.clear(); + }; + + // Find the position of the marker in the document. Returns a {from, + // to} object by default. Side can be passed to get a specific side + // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the + // Pos objects returned contain a line object, rather than a line + // number (used to prevent looking up the same line twice). + TextMarker.prototype.find = function (side, lineObj) { + if (side == null && this.type == "bookmark") side = 1; + var from, to; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (span.from != null) { + from = Pos(lineObj ? line : lineNo(line), span.from); + if (side == -1) return from; + } + if (span.to != null) { + to = Pos(lineObj ? line : lineNo(line), span.to); + if (side == 1) return to; + } + } + return from && { from: from, to: to }; + }; + + // Signals that the marker's widget changed, and surrounding layout + // should be recomputed. + TextMarker.prototype.changed = function () { + var pos = this.find(-1, true), widget = this, cm = this.doc.cm; + if (!pos || !cm) return; + runInOp(cm, function () { + var line = pos.line, lineN = lineNo(pos.line); + var view = findViewForLine(cm, lineN); + if (view) { + clearLineMeasurementCacheFor(view); + cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; + } + cm.curOp.updateMaxLine = true; + if (!lineIsHidden(widget.doc, line) && widget.height != null) { + var oldHeight = widget.height; + widget.height = null; + var dHeight = widgetHeight(widget) - oldHeight; + if (dHeight) + updateLineHeight(line, line.height + dHeight); + } + }); + }; + + TextMarker.prototype.attachLine = function (line) { + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) + (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); + } + this.lines.push(line); + }; + TextMarker.prototype.detachLine = function (line) { + this.lines.splice(indexOf(this.lines, line), 1); + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); + } + }; + + // Collapsed markers have unique ids, in order to be able to order + // them, which is needed for uniquely determining an outer marker + // when they overlap (they may nest, but not partially overlap). + var nextMarkerId = 0; + + // Create a marker, wire it up to the right lines, and + function markText(doc, from, to, options, type) { + // Shared markers (across linked documents) are handled separately + // (markTextShared will call out to this again, once per + // document). + if (options && options.shared) return markTextShared(doc, from, to, options, type); + // Ensure we are in an operation. + if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); + + var marker = new TextMarker(doc, type), diff = cmp(from, to); + if (options) copyObj(options, marker, false); + // Don't connect empty markers unless clearWhenEmpty is false + if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) + return marker; + if (marker.replacedWith) { + // Showing up as a widget implies collapsed (widget replaces text) + marker.collapsed = true; + marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget"); + if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true"); + if (options.insertLeft) marker.widgetNode.insertLeft = true; + } + if (marker.collapsed) { + if (conflictingCollapsedRange(doc, from.line, from, to, marker) || + from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) + throw new Error("Inserting collapsed marker partially overlapping an existing one"); + sawCollapsedSpans = true; + } + + if (marker.addToHistory) + addChangeToHistory(doc, { from: from, to: to, origin: "markText" }, doc.sel, NaN); + + var curLine = from.line, cm = doc.cm, updateMaxLine; + doc.iter(curLine, to.line + 1, function (line) { + if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) + updateMaxLine = true; + if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0); + addMarkedSpan(line, new MarkedSpan(marker, + curLine == from.line ? from.ch : null, + curLine == to.line ? to.ch : null)); + ++curLine; + }); + // lineIsHidden depends on the presence of the spans, so needs a second pass + if (marker.collapsed) doc.iter(from.line, to.line + 1, function (line) { + if (lineIsHidden(doc, line)) updateLineHeight(line, 0); + }); + + if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function () { marker.clear(); }); + + if (marker.readOnly) { + sawReadOnlySpans = true; + if (doc.history.done.length || doc.history.undone.length) + doc.clearHistory(); + } + if (marker.collapsed) { + marker.id = ++nextMarkerId; + marker.atomic = true; + } + if (cm) { + // Sync editor state + if (updateMaxLine) cm.curOp.updateMaxLine = true; + if (marker.collapsed) + regChange(cm, from.line, to.line + 1); + else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css) + for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text"); + if (marker.atomic) reCheckSelection(cm.doc); + signalLater(cm, "markerAdded", cm, marker); + } + return marker; + } + + // SHARED TEXTMARKERS + + // A shared marker spans multiple linked documents. It is + // implemented as a meta-marker-object controlling multiple normal + // markers. + var SharedTextMarker = CodeMirror.SharedTextMarker = function (markers, primary) { + this.markers = markers; + this.primary = primary; + for (var i = 0; i < markers.length; ++i) + markers[i].parent = this; + }; + eventMixin(SharedTextMarker); + + SharedTextMarker.prototype.clear = function () { + if (this.explicitlyCleared) return; + this.explicitlyCleared = true; + for (var i = 0; i < this.markers.length; ++i) + this.markers[i].clear(); + signalLater(this, "clear"); + }; + SharedTextMarker.prototype.find = function (side, lineObj) { + return this.primary.find(side, lineObj); + }; + + function markTextShared(doc, from, to, options, type) { + options = copyObj(options); + options.shared = false; + var markers = [markText(doc, from, to, options, type)], primary = markers[0]; + var widget = options.widgetNode; + linkedDocs(doc, function (doc) { + if (widget) options.widgetNode = widget.cloneNode(true); + markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); + for (var i = 0; i < doc.linked.length; ++i) + if (doc.linked[i].isParent) return; + primary = lst(markers); + }); + return new SharedTextMarker(markers, primary); + } + + function findSharedMarkers(doc) { + return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), + function (m) { return m.parent; }); + } + + function copySharedMarkers(doc, markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], pos = marker.find(); + var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); + if (cmp(mFrom, mTo)) { + var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); + marker.markers.push(subMark); + subMark.parent = marker; + } + } + } + + function detachSharedMarkers(markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], linked = [marker.primary.doc];; + linkedDocs(marker.primary.doc, function (d) { linked.push(d); }); + for (var j = 0; j < marker.markers.length; j++) { + var subMarker = marker.markers[j]; + if (indexOf(linked, subMarker.doc) == -1) { + subMarker.parent = null; + marker.markers.splice(j--, 1); } } - var result = skipAtomic(doc, Pos(line, ch), pos, origDir, true); - if (!cmp(pos, result)) result.hitSide = true; + } + } + + // TEXTMARKER SPANS + + function MarkedSpan(marker, from, to) { + this.marker = marker; + this.from = from; this.to = to; + } + + // Search an array of spans for a span matching the given marker. + function getMarkedSpanFor(spans, marker) { + if (spans) for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.marker == marker) return span; + } + } + // Remove a span from an array, returning undefined if no spans are + // left (we don't store arrays for lines without spans). + function removeMarkedSpan(spans, span) { + for (var r, i = 0; i < spans.length; ++i) + if (spans[i] != span) (r || (r = [])).push(spans[i]); + return r; + } + // Add a span to a line. + function addMarkedSpan(line, span) { + line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; + span.marker.attachLine(line); + } + + // Used for the algorithm that adjusts markers for a change in the + // document. These functions cut an array of spans at a given + // character position, returning an array of remaining chunks (or + // undefined if nothing remains). + function markedSpansBefore(old, startCh, isInsert) { + if (old) for (var i = 0, nw; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); + if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); + (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); + } + } + return nw; + } + function markedSpansAfter(old, endCh, isInsert) { + if (old) for (var i = 0, nw; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); + if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); + (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, + span.to == null ? null : span.to - endCh)); + } + } + return nw; + } + + // Given a change object, compute the new set of marker spans that + // cover the line in which the change took place. Removes spans + // entirely within the change, reconnects spans belonging to the + // same marker that appear on both sides of the change, and cuts off + // spans partially within the change. Returns an array of span + // arrays with one element for each line in (after) the change. + function stretchSpansOverChange(doc, change) { + if (change.full) return null; + var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; + var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; + if (!oldFirst && !oldLast) return null; + + var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; + // Get the spans that 'stick out' on both sides + var first = markedSpansBefore(oldFirst, startCh, isInsert); + var last = markedSpansAfter(oldLast, endCh, isInsert); + + // Next, merge those two ends + var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); + if (first) { + // Fix up .to properties of first + for (var i = 0; i < first.length; ++i) { + var span = first[i]; + if (span.to == null) { + var found = getMarkedSpanFor(last, span.marker); + if (!found) span.to = startCh; + else if (sameLine) span.to = found.to == null ? null : found.to + offset; + } + } + } + if (last) { + // Fix up .from in last (or move them into first in case of sameLine) + for (var i = 0; i < last.length; ++i) { + var span = last[i]; + if (span.to != null) span.to += offset; + if (span.from == null) { + var found = getMarkedSpanFor(first, span.marker); + if (!found) { + span.from = offset; + if (sameLine) (first || (first = [])).push(span); + } + } else { + span.from += offset; + if (sameLine) (first || (first = [])).push(span); + } + } + } + // Make sure we didn't create any zero-length spans + if (first) first = clearEmptySpans(first); + if (last && last != first) last = clearEmptySpans(last); + + var newMarkers = [first]; + if (!sameLine) { + // Fill gap with whole-line-spans + var gap = change.text.length - 2, gapMarkers; + if (gap > 0 && first) + for (var i = 0; i < first.length; ++i) + if (first[i].to == null) + (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); + for (var i = 0; i < gap; ++i) + newMarkers.push(gapMarkers); + newMarkers.push(last); + } + return newMarkers; + } + + // Remove spans that are empty and don't have a clearWhenEmpty + // option of false. + function clearEmptySpans(spans) { + for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) + spans.splice(i--, 1); + } + if (!spans.length) return null; + return spans; + } + + // Used for un/re-doing changes from the history. Combines the + // result of computing the existing spans with the set of spans that + // existed in the history (so that deleting around a span and then + // undoing brings back the span). + function mergeOldSpans(doc, change) { + var old = getOldSpans(doc, change); + var stretched = stretchSpansOverChange(doc, change); + if (!old) return stretched; + if (!stretched) return old; + + for (var i = 0; i < old.length; ++i) { + var oldCur = old[i], stretchCur = stretched[i]; + if (oldCur && stretchCur) { + spans: for (var j = 0; j < stretchCur.length; ++j) { + var span = stretchCur[j]; + for (var k = 0; k < oldCur.length; ++k) + if (oldCur[k].marker == span.marker) continue spans; + oldCur.push(span); + } + } else if (stretchCur) { + old[i] = stretchCur; + } + } + return old; + } + + // Used to 'clip' out readOnly ranges when making a change. + function removeReadOnlyRanges(doc, from, to) { + var markers = null; + doc.iter(from.line, to.line + 1, function (line) { + if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { + var mark = line.markedSpans[i].marker; + if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) + (markers || (markers = [])).push(mark); + } + }); + if (!markers) return null; + var parts = [{ from: from, to: to }]; + for (var i = 0; i < markers.length; ++i) { + var mk = markers[i], m = mk.find(0); + for (var j = 0; j < parts.length; ++j) { + var p = parts[j]; + if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue; + var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); + if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) + newParts.push({ from: p.from, to: m.from }); + if (dto > 0 || !mk.inclusiveRight && !dto) + newParts.push({ from: m.to, to: p.to }); + parts.splice.apply(parts, newParts); + j += newParts.length - 1; + } + } + return parts; + } + + // Connect or disconnect spans from a line. + function detachMarkedSpans(line) { + var spans = line.markedSpans; + if (!spans) return; + for (var i = 0; i < spans.length; ++i) + spans[i].marker.detachLine(line); + line.markedSpans = null; + } + function attachMarkedSpans(line, spans) { + if (!spans) return; + for (var i = 0; i < spans.length; ++i) + spans[i].marker.attachLine(line); + line.markedSpans = spans; + } + + // Helpers used when computing which overlapping collapsed span + // counts as the larger one. + function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; } + function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; } + + // Returns a number indicating which of two overlapping collapsed + // spans is larger (and thus includes the other). Falls back to + // comparing ids when the spans cover exactly the same range. + function compareCollapsedMarkers(a, b) { + var lenDiff = a.lines.length - b.lines.length; + if (lenDiff != 0) return lenDiff; + var aPos = a.find(), bPos = b.find(); + var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); + if (fromCmp) return -fromCmp; + var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); + if (toCmp) return toCmp; + return b.id - a.id; + } + + // Find out whether a line ends or starts in a collapsed span. If + // so, return the marker for that span. + function collapsedSpanAtSide(line, start) { + var sps = sawCollapsedSpans && line.markedSpans, found; + if (sps) for (var sp, i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) + found = sp.marker; + } + return found; + } + function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); } + function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); } + + // Test whether there exists a collapsed span that partially + // overlaps (covers the start or end, but not both) of a new span. + // Such overlap is not allowed. + function conflictingCollapsedRange(doc, lineNo, from, to, marker) { + var line = getLine(doc, lineNo); + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) for (var i = 0; i < sps.length; ++i) { + var sp = sps[i]; + if (!sp.marker.collapsed) continue; + var found = sp.marker.find(0); + var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); + var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); + if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue; + if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || + fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) + return true; + } + } + + // A visual line is a line as drawn on the screen. Folding, for + // example, can cause multiple logical lines to appear on the same + // visual line. This finds the start of the visual line that the + // given line is part of (usually that is the line itself). + function visualLine(line) { + var merged; + while (merged = collapsedSpanAtStart(line)) + line = merged.find(-1, true).line; + return line; + } + + // Returns an array of logical lines that continue the visual line + // started by the argument, or undefined if there are no such lines. + function visualLineContinued(line) { + var merged, lines; + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + (lines || (lines = [])).push(line); + } + return lines; + } + + // Get the line number of the start of the visual line that the + // given line number is part of. + function visualLineNo(doc, lineN) { + var line = getLine(doc, lineN), vis = visualLine(line); + if (line == vis) return lineN; + return lineNo(vis); + } + // Get the line number of the start of the next visual line after + // the given line. + function visualLineEndNo(doc, lineN) { + if (lineN > doc.lastLine()) return lineN; + var line = getLine(doc, lineN), merged; + if (!lineIsHidden(doc, line)) return lineN; + while (merged = collapsedSpanAtEnd(line)) + line = merged.find(1, true).line; + return lineNo(line) + 1; + } + + // Compute whether a line is hidden. Lines count as hidden when they + // are part of a visual line that starts with another line, or when + // they are entirely covered by collapsed, non-widget span. + function lineIsHidden(doc, line) { + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) for (var sp, i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (!sp.marker.collapsed) continue; + if (sp.from == null) return true; + if (sp.marker.widgetNode) continue; + if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) + return true; + } + } + function lineIsHiddenInner(doc, line, span) { + if (span.to == null) { + var end = span.marker.find(1, true); + return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)); + } + if (span.marker.inclusiveRight && span.to == line.text.length) + return true; + for (var sp, i = 0; i < line.markedSpans.length; ++i) { + sp = line.markedSpans[i]; + if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && + (sp.to == null || sp.to != span.from) && + (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && + lineIsHiddenInner(doc, line, sp)) return true; + } + } + + // LINE WIDGETS + + // Line widgets are block elements displayed above or below a line. + + var LineWidget = CodeMirror.LineWidget = function (doc, node, options) { + if (options) for (var opt in options) if (options.hasOwnProperty(opt)) + this[opt] = options[opt]; + this.doc = doc; + this.node = node; + }; + eventMixin(LineWidget); + + function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + addToScrollPos(cm, null, diff); + } + + LineWidget.prototype.clear = function () { + var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); + if (no == null || !ws) return; + for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); + if (!ws.length) line.widgets = null; + var height = widgetHeight(this); + updateLineHeight(line, Math.max(0, line.height - height)); + if (cm) runInOp(cm, function () { + adjustScrollWhenAboveVisible(cm, line, -height); + regLineChange(cm, no, "widget"); + }); + }; + LineWidget.prototype.changed = function () { + var oldH = this.height, cm = this.doc.cm, line = this.line; + this.height = null; + var diff = widgetHeight(this) - oldH; + if (!diff) return; + updateLineHeight(line, line.height + diff); + if (cm) runInOp(cm, function () { + cm.curOp.forceUpdate = true; + adjustScrollWhenAboveVisible(cm, line, diff); + }); + }; + + function widgetHeight(widget) { + if (widget.height != null) return widget.height; + var cm = widget.doc.cm; + if (!cm) return 0; + if (!contains(document.body, widget.node)) { + var parentStyle = "position: relative;"; + if (widget.coverGutter) + parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; + if (widget.noHScroll) + parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; + removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); + } + return widget.height = widget.node.parentNode.offsetHeight; + } + + function addLineWidget(doc, handle, node, options) { + var widget = new LineWidget(doc, node, options); + var cm = doc.cm; + if (cm && widget.noHScroll) cm.display.alignWidgets = true; + changeLine(doc, handle, "widget", function (line) { + var widgets = line.widgets || (line.widgets = []); + if (widget.insertAt == null) widgets.push(widget); + else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); + widget.line = line; + if (cm && !lineIsHidden(doc, line)) { + var aboveVisible = heightAtLine(line) < doc.scrollTop; + updateLineHeight(line, line.height + widgetHeight(widget)); + if (aboveVisible) addToScrollPos(cm, null, widget.height); + cm.curOp.forceUpdate = true; + } + return true; + }); + return widget; + } + + // LINE DATA STRUCTURE + + // Line objects. These hold state related to a line, including + // highlighting info (the styles array). + var Line = CodeMirror.Line = function (text, markedSpans, estimateHeight) { + this.text = text; + attachMarkedSpans(this, markedSpans); + this.height = estimateHeight ? estimateHeight(this) : 1; + }; + eventMixin(Line); + Line.prototype.lineNo = function () { return lineNo(this); }; + + // Change the content (text, markers) of a line. Automatically + // invalidates cached information and tries to re-estimate the + // line's height. + function updateLine(line, text, markedSpans, estimateHeight) { + line.text = text; + if (line.stateAfter) line.stateAfter = null; + if (line.styles) line.styles = null; + if (line.order != null) line.order = null; + detachMarkedSpans(line); + attachMarkedSpans(line, markedSpans); + var estHeight = estimateHeight ? estimateHeight(line) : 1; + if (estHeight != line.height) updateLineHeight(line, estHeight); + } + + // Detach a line from the document tree and its markers. + function cleanUpLine(line) { + line.parent = null; + detachMarkedSpans(line); + } + + function extractLineClasses(type, output) { + if (type) for (; ;) { + var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); + if (!lineClass) break; + type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); + var prop = lineClass[1] ? "bgClass" : "textClass"; + if (output[prop] == null) + output[prop] = lineClass[2]; + else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) + output[prop] += " " + lineClass[2]; + } + return type; + } + + function callBlankLine(mode, state) { + if (mode.blankLine) return mode.blankLine(state); + if (!mode.innerMode) return; + var inner = CodeMirror.innerMode(mode, state); + if (inner.mode.blankLine) return inner.mode.blankLine(inner.state); + } + + function readToken(mode, stream, state, inner) { + for (var i = 0; i < 10; i++) { + if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode; + var style = mode.token(stream, state); + if (stream.pos > stream.start) return style; + } + throw new Error("Mode " + mode.name + " failed to advance stream."); + } + + // Utility for getTokenAt and getLineTokens + function takeToken(cm, pos, precise, asArray) { + function getObj(copy) { + return { + start: stream.start, end: stream.pos, + string: stream.current(), + type: style || null, + state: copy ? copyState(doc.mode, state) : state + }; + } + + var doc = cm.doc, mode = doc.mode, style; + pos = clipPos(doc, pos); + var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise); + var stream = new StringStream(line.text, cm.options.tabSize), tokens; + if (asArray) tokens = []; + while ((asArray || stream.pos < pos.ch) && !stream.eol()) { + stream.start = stream.pos; + style = readToken(mode, stream, state); + if (asArray) tokens.push(getObj(true)); + } + return asArray ? tokens : getObj(); + } + + // Run the given mode's parser over a line, calling f for each token. + function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { + var flattenSpans = mode.flattenSpans; + if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; + var curStart = 0, curStyle = null; + var stream = new StringStream(text, cm.options.tabSize), style; + var inner = cm.options.addModeClass && [null]; + if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses); + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false; + if (forceToEnd) processLine(cm, text, state, stream.pos); + stream.pos = text.length; + style = null; + } else { + style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses); + } + if (inner) { + var mName = inner[0].name; + if (mName) style = "m-" + (style ? mName + " " + style : mName); + } + if (!flattenSpans || curStyle != style) { + while (curStart < stream.start) { + curStart = Math.min(stream.start, curStart + 50000); + f(curStart, curStyle); + } + curStyle = style; + } + stream.start = stream.pos; + } + while (curStart < stream.pos) { + // Webkit seems to refuse to render text nodes longer than 57444 characters + var pos = Math.min(stream.pos, curStart + 50000); + f(pos, curStyle); + curStart = pos; + } + } + + // Compute a style array (an array starting with a mode generation + // -- for invalidation -- followed by pairs of end positions and + // style strings), which is used to highlight the tokens on the + // line. + function highlightLine(cm, line, state, forceToEnd) { + // A styles array always starts with a number identifying the + // mode/overlays that it is based on (for easy invalidation). + var st = [cm.state.modeGen], lineClasses = {}; + // Compute the base array of styles + runMode(cm, line.text, cm.doc.mode, state, function (end, style) { + st.push(end, style); + }, lineClasses, forceToEnd); + + // Run overlays, adjust style array. + for (var o = 0; o < cm.state.overlays.length; ++o) { + var overlay = cm.state.overlays[o], i = 1, at = 0; + runMode(cm, line.text, overlay.mode, true, function (end, style) { + var start = i; + // Ensure there's a token end at the current position, and that i points at it + while (at < end) { + var i_end = st[i]; + if (i_end > end) + st.splice(i, 1, end, st[i + 1], i_end); + i += 2; + at = Math.min(end, i_end); + } + if (!style) return; + if (overlay.opaque) { + st.splice(start, i - start, end, "cm-overlay " + style); + i = start + 2; + } else { + for (; start < i; start += 2) { + var cur = st[start + 1]; + st[start + 1] = (cur ? cur + " " : "") + "cm-overlay " + style; + } + } + }, lineClasses); + } + + return { styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null }; + } + + function getLineStyles(cm, line, updateFrontier) { + if (!line.styles || line.styles[0] != cm.state.modeGen) { + var state = getStateBefore(cm, lineNo(line)); + var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state); + line.stateAfter = state; + line.styles = result.styles; + if (result.classes) line.styleClasses = result.classes; + else if (line.styleClasses) line.styleClasses = null; + if (updateFrontier === cm.doc.frontier) cm.doc.frontier++; + } + return line.styles; + } + + // Lightweight form of highlight -- proceed over this line and + // update state, but don't save a style array. Used for lines that + // aren't currently visible. + function processLine(cm, text, state, startAt) { + var mode = cm.doc.mode; + var stream = new StringStream(text, cm.options.tabSize); + stream.start = stream.pos = startAt || 0; + if (text == "") callBlankLine(mode, state); + while (!stream.eol()) { + readToken(mode, stream, state); + stream.start = stream.pos; + } + } + + // Convert a style as returned by a mode (either null, or a string + // containing one or more styles) to a CSS style. This is cached, + // and also looks for line-wide styles. + var styleToClassCache = {}, styleToClassCacheWithMode = {}; + function interpretTokenStyle(style, options) { + if (!style || /^\s*$/.test(style)) return null; + var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; + return cache[style] || + (cache[style] = style.replace(/\S+/g, "cm-$&")); + } + + // Render the DOM representation of the text of a line. Also builds + // up a 'line map', which points at the DOM nodes that represent + // specific stretches of text, and is used by the measuring code. + // The returned object contains the DOM node, this map, and + // information about line-wide styles that were set by the mode. + function buildLineContent(cm, lineView) { + // The padding-right forces the element to have a 'border', which + // is needed on Webkit to be able to get line-level bounding + // rectangles for it (in measureChar). + var content = elt("span", null, null, webkit ? "padding-right: .1px" : null); + var builder = { + pre: elt("pre", [content], "CodeMirror-line"), content: content, + col: 0, pos: 0, cm: cm, + trailingSpace: false, + splitSpaces: (ie || webkit) && cm.getOption("lineWrapping") + }; + lineView.measure = {}; + + // Iterate over the logical lines that make up this visual line. + for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { + var line = i ? lineView.rest[i - 1] : lineView.line, order; + builder.pos = 0; + builder.addToken = buildToken; + // Optionally wire in some hacks into the token-rendering + // algorithm, to deal with browser quirks. + if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) + builder.addToken = buildTokenBadBidi(builder.addToken, order); + builder.map = []; + var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); + insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); + if (line.styleClasses) { + if (line.styleClasses.bgClass) + builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); + if (line.styleClasses.textClass) + builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); + } + + // Ensure at least a single node is present, for measuring. + if (builder.map.length == 0) + builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); + + // Store the map and a cache object for the current logical line + if (i == 0) { + lineView.measure.map = builder.map; + lineView.measure.cache = {}; + } else { + (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map); + (lineView.measure.caches || (lineView.measure.caches = [])).push({}); + } + } + + // See issue #2901 + if (webkit) { + var last = builder.content.lastChild + if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) + builder.content.className = "cm-tab-wrap-hack"; + } + + signal(cm, "renderLine", cm, lineView.line, builder.pre); + if (builder.pre.className) + builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); + + return builder; + } + + function defaultSpecialCharPlaceholder(ch) { + var token = elt("span", "\u2022", "cm-invalidchar"); + token.title = "\\u" + ch.charCodeAt(0).toString(16); + token.setAttribute("aria-label", token.title); + return token; + } + + // Build up the DOM representation for a single token, and add it to + // the line map. Takes care to render special characters separately. + function buildToken(builder, text, style, startStyle, endStyle, title, css) { + if (!text) return; + var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text + var special = builder.cm.state.specialChars, mustWrap = false; + if (!special.test(text)) { + builder.col += text.length; + var content = document.createTextNode(displayText); + builder.map.push(builder.pos, builder.pos + text.length, content); + if (ie && ie_version < 9) mustWrap = true; + builder.pos += text.length; + } else { + var content = document.createDocumentFragment(), pos = 0; + while (true) { + special.lastIndex = pos; + var m = special.exec(text); + var skipped = m ? m.index - pos : text.length - pos; + if (skipped) { + var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); + if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.map.push(builder.pos, builder.pos + skipped, txt); + builder.col += skipped; + builder.pos += skipped; + } + if (!m) break; + pos += skipped + 1; + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; + var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); + txt.setAttribute("role", "presentation"); + txt.setAttribute("cm-text", "\t"); + builder.col += tabWidth; + } else if (m[0] == "\r" || m[0] == "\n") { + var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); + txt.setAttribute("cm-text", m[0]); + builder.col += 1; + } else { + var txt = builder.cm.options.specialCharPlaceholder(m[0]); + txt.setAttribute("cm-text", m[0]); + if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); + else content.appendChild(txt); + builder.col += 1; + } + builder.map.push(builder.pos, builder.pos + 1, txt); + builder.pos++; + } + } + builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32 + if (style || startStyle || endStyle || mustWrap || css) { + var fullStyle = style || ""; + if (startStyle) fullStyle += startStyle; + if (endStyle) fullStyle += endStyle; + var token = elt("span", [content], fullStyle, css); + if (title) token.title = title; + return builder.content.appendChild(token); + } + builder.content.appendChild(content); + } + + function splitSpaces(text, trailingBefore) { + if (text.length > 1 && !/ /.test(text)) return text + var spaceBefore = trailingBefore, result = "" + for (var i = 0; i < text.length; i++) { + var ch = text.charAt(i) + if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) + ch = "\u00a0" + result += ch + spaceBefore = ch == " " + } + return result + } + + // Work around nonsense dimensions being reported for stretches of + // right-to-left text. + function buildTokenBadBidi(inner, order) { + return function (builder, text, style, startStyle, endStyle, title, css) { + style = style ? style + " cm-force-border" : "cm-force-border"; + var start = builder.pos, end = start + text.length; + for (; ;) { + // Find the part that overlaps with the start of this text + for (var i = 0; i < order.length; i++) { + var part = order[i]; + if (part.to > start && part.from <= start) break; + } + if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css); + inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css); + startStyle = null; + text = text.slice(part.to - start); + start = part.to; + } + }; + } + + function buildCollapsedSpan(builder, size, marker, ignoreWidget) { + var widget = !ignoreWidget && marker.widgetNode; + if (widget) builder.map.push(builder.pos, builder.pos + size, widget); + if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { + if (!widget) + widget = builder.content.appendChild(document.createElement("span")); + widget.setAttribute("cm-marker", marker.id); + } + if (widget) { + builder.cm.display.input.setUneditable(widget); + builder.content.appendChild(widget); + } + builder.pos += size; + builder.trailingSpace = false + } + + // Outputs a number of spans to make up a line, taking highlighting + // and marked text into account. + function insertLineContent(line, builder, styles) { + var spans = line.markedSpans, allText = line.text, at = 0; + if (!spans) { + for (var i = 1; i < styles.length; i += 2) + builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i + 1], builder.cm.options)); + return; + } + + var len = allText.length, pos = 0, i = 1, text = "", style, css; + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; + for (; ;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = title = css = ""; + collapsed = null; nextChange = Infinity; + var foundBookmarks = [], endStyles + for (var j = 0; j < spans.length; ++j) { + var sp = spans[j], m = sp.marker; + if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { + foundBookmarks.push(m); + } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { + if (sp.to != null && sp.to != pos && nextChange > sp.to) { + nextChange = sp.to; + spanEndStyle = ""; + } + if (m.className) spanStyle += " " + m.className; + if (m.css) css = (css ? css + ";" : "") + m.css; + if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; + if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to) + if (m.title && !title) title = m.title; + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + collapsed = sp; + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from; + } + } + if (endStyles) for (var j = 0; j < endStyles.length; j += 2) + if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j] + + if (!collapsed || collapsed.from == pos) for (var j = 0; j < foundBookmarks.length; ++j) + buildCollapsedSpan(builder, 0, foundBookmarks[j]); + if (collapsed && (collapsed.from || 0) == pos) { + buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, + collapsed.marker, collapsed.from == null); + if (collapsed.to == null) return; + if (collapsed.to == pos) collapsed = false; + } + } + if (pos >= len) break; + + var upto = Math.min(len, nextChange); + while (true) { + if (text) { + var end = pos + text.length; + if (!collapsed) { + var tokenText = end > upto ? text.slice(0, upto - pos) : text; + builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, + spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css); + } + if (end >= upto) { text = text.slice(upto - pos); pos = upto; break; } + pos = end; + spanStartStyle = ""; + } + text = allText.slice(at, at = styles[i++]); + style = interpretTokenStyle(styles[i++], builder.cm.options); + } + } + } + + // DOCUMENT DATA STRUCTURE + + // By default, updates that start and end at the beginning of a line + // are treated specially, in order to make the association of line + // widgets and marker elements with the text behave more intuitive. + function isWholeLineUpdate(doc, change) { + return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && + (!doc.cm || doc.cm.options.wholeLineUpdateBefore); + } + + // Perform a change on the document data structure. + function updateDoc(doc, change, markedSpans, estimateHeight) { + function spansFor(n) { return markedSpans ? markedSpans[n] : null; } + function update(line, text, spans) { + updateLine(line, text, spans, estimateHeight); + signalLater(line, "change", line, change); + } + function linesFor(start, end) { + for (var i = start, result = []; i < end; ++i) + result.push(new Line(text[i], spansFor(i), estimateHeight)); return result; } - // For relative vertical movement. Dir may be -1 or 1. Unit can be - // "page" or "line". The resulting position will have a hitSide=true - // property if it reached the end of the document. - function findPosV(cm, pos, dir, unit) { - var doc = cm.doc, x = pos.left, y; - if (unit == "page") { - var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); - y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display)); - } else if (unit == "line") { - y = dir > 0 ? pos.bottom + 3 : pos.top - 3; - } - for (; ;) { - var target = coordsChar(cm, x, y); - if (!target.outside) break; - if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; } - y += dir * 5; - } - return target; - } + var from = change.from, to = change.to, text = change.text; + var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); + var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; - // EDITOR METHODS - - // The publicly visible API. Note that methodOp(f) means - // 'wrap f in an operation, performed on its `this` parameter'. - - // This is not the complete set of editor methods. Most of the - // methods defined on the Doc type are also injected into - // CodeMirror.prototype, for backwards compatibility and - // convenience. - - CodeMirror.prototype = { - constructor: CodeMirror, - focus: function () { window.focus(); this.display.input.focus(); }, - - setOption: function (option, value) { - var options = this.options, old = options[option]; - if (options[option] == value && option != "mode") return; - options[option] = value; - if (optionHandlers.hasOwnProperty(option)) - operation(this, optionHandlers[option])(this, value, old); - }, - - getOption: function (option) { return this.options[option]; }, - getDoc: function () { return this.doc; }, - - addKeyMap: function (map, bottom) { - this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map)); - }, - removeKeyMap: function (map) { - var maps = this.state.keyMaps; - for (var i = 0; i < maps.length; ++i) - if (maps[i] == map || maps[i].name == map) { - maps.splice(i, 1); - return true; - } - }, - - addOverlay: methodOp(function (spec, options) { - var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); - if (mode.startState) throw new Error("Overlays may not be stateful."); - this.state.overlays.push({ mode: mode, modeSpec: spec, opaque: options && options.opaque }); - this.state.modeGen++; - regChange(this); - }), - removeOverlay: methodOp(function (spec) { - var overlays = this.state.overlays; - for (var i = 0; i < overlays.length; ++i) { - var cur = overlays[i].modeSpec; - if (cur == spec || typeof spec == "string" && cur.name == spec) { - overlays.splice(i, 1); - this.state.modeGen++; - regChange(this); - return; - } - } - }), - - indentLine: methodOp(function (n, dir, aggressive) { - if (typeof dir != "string" && typeof dir != "number") { - if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"; - else dir = dir ? "add" : "subtract"; - } - if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive); - }), - indentSelection: methodOp(function (how) { - var ranges = this.doc.sel.ranges, end = -1; - for (var i = 0; i < ranges.length; i++) { - var range = ranges[i]; - if (!range.empty()) { - var from = range.from(), to = range.to(); - var start = Math.max(end, from.line); - end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; - for (var j = start; j < end; ++j) - indentLine(this, j, how); - var newRanges = this.doc.sel.ranges; - if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) - replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); - } else if (range.head.line > end) { - indentLine(this, range.head.line, how, true); - end = range.head.line; - if (i == this.doc.sel.primIndex) ensureCursorVisible(this); - } - } - }), - - // Fetch the parser token for a given character. Useful for hacks - // that want to inspect the mode state (say, for completion). - getTokenAt: function (pos, precise) { - return takeToken(this, pos, precise); - }, - - getLineTokens: function (line, precise) { - return takeToken(this, Pos(line), precise, true); - }, - - getTokenTypeAt: function (pos) { - pos = clipPos(this.doc, pos); - var styles = getLineStyles(this, getLine(this.doc, pos.line)); - var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; - var type; - if (ch == 0) type = styles[2]; - else for (; ;) { - var mid = (before + after) >> 1; - if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid; - else if (styles[mid * 2 + 1] < ch) before = mid + 1; - else { type = styles[mid * 2 + 2]; break; } - } - var cut = type ? type.indexOf("cm-overlay ") : -1; - return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1); - }, - - getModeAt: function (pos) { - var mode = this.doc.mode; - if (!mode.innerMode) return mode; - return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode; - }, - - getHelper: function (pos, type) { - return this.getHelpers(pos, type)[0]; - }, - - getHelpers: function (pos, type) { - var found = []; - if (!helpers.hasOwnProperty(type)) return found; - var help = helpers[type], mode = this.getModeAt(pos); - if (typeof mode[type] == "string") { - if (help[mode[type]]) found.push(help[mode[type]]); - } else if (mode[type]) { - for (var i = 0; i < mode[type].length; i++) { - var val = help[mode[type][i]]; - if (val) found.push(val); - } - } else if (mode.helperType && help[mode.helperType]) { - found.push(help[mode.helperType]); - } else if (help[mode.name]) { - found.push(help[mode.name]); - } - for (var i = 0; i < help._global.length; i++) { - var cur = help._global[i]; - if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) - found.push(cur.val); - } - return found; - }, - - getStateAfter: function (line, precise) { - var doc = this.doc; - line = clipLine(doc, line == null ? doc.first + doc.size - 1 : line); - return getStateBefore(this, line + 1, precise); - }, - - cursorCoords: function (start, mode) { - var pos, range = this.doc.sel.primary(); - if (start == null) pos = range.head; - else if (typeof start == "object") pos = clipPos(this.doc, start); - else pos = start ? range.from() : range.to(); - return cursorCoords(this, pos, mode || "page"); - }, - - charCoords: function (pos, mode) { - return charCoords(this, clipPos(this.doc, pos), mode || "page"); - }, - - coordsChar: function (coords, mode) { - coords = fromCoordSystem(this, coords, mode || "page"); - return coordsChar(this, coords.left, coords.top); - }, - - lineAtHeight: function (height, mode) { - height = fromCoordSystem(this, { top: height, left: 0 }, mode || "page").top; - return lineAtHeight(this.doc, height + this.display.viewOffset); - }, - heightAtLine: function (line, mode) { - var end = false, lineObj; - if (typeof line == "number") { - var last = this.doc.first + this.doc.size - 1; - if (line < this.doc.first) line = this.doc.first; - else if (line > last) { line = last; end = true; } - lineObj = getLine(this.doc, line); - } else { - lineObj = line; - } - return intoCoordSystem(this, lineObj, { top: 0, left: 0 }, mode || "page").top + - (end ? this.doc.height - heightAtLine(lineObj) : 0); - }, - - defaultTextHeight: function () { return textHeight(this.display); }, - defaultCharWidth: function () { return charWidth(this.display); }, - - setGutterMarker: methodOp(function (line, gutterID, value) { - return changeLine(this.doc, line, "gutter", function (line) { - var markers = line.gutterMarkers || (line.gutterMarkers = {}); - markers[gutterID] = value; - if (!value && isEmpty(markers)) line.gutterMarkers = null; - return true; - }); - }), - - clearGutter: methodOp(function (gutterID) { - var cm = this, doc = cm.doc, i = doc.first; - doc.iter(function (line) { - if (line.gutterMarkers && line.gutterMarkers[gutterID]) { - line.gutterMarkers[gutterID] = null; - regLineChange(cm, i, "gutter"); - if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null; - } - ++i; - }); - }), - - lineInfo: function (line) { - if (typeof line == "number") { - if (!isLine(this.doc, line)) return null; - var n = line; - line = getLine(this.doc, line); - if (!line) return null; - } else { - var n = lineNo(line); - if (n == null) return null; - } - return { - line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, - textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, - widgets: line.widgets - }; - }, - - getViewport: function () { return { from: this.display.viewFrom, to: this.display.viewTo }; }, - - addWidget: function (pos, node, scroll, vert, horiz) { - var display = this.display; - pos = cursorCoords(this, clipPos(this.doc, pos)); - var top = pos.bottom, left = pos.left; - node.style.position = "absolute"; - node.setAttribute("cm-ignore-events", "true"); - this.display.input.setUneditable(node); - display.sizer.appendChild(node); - if (vert == "over") { - top = pos.top; - } else if (vert == "above" || vert == "near") { - var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), - hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); - // Default to positioning above (if specified and possible); otherwise default to positioning below - if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) - top = pos.top - node.offsetHeight; - else if (pos.bottom + node.offsetHeight <= vspace) - top = pos.bottom; - if (left + node.offsetWidth > hspace) - left = hspace - node.offsetWidth; - } - node.style.top = top + "px"; - node.style.left = node.style.right = ""; - if (horiz == "right") { - left = display.sizer.clientWidth - node.offsetWidth; - node.style.right = "0px"; - } else { - if (horiz == "left") left = 0; - else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2; - node.style.left = left + "px"; - } - if (scroll) - scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight); - }, - - triggerOnKeyDown: methodOp(onKeyDown), - triggerOnKeyPress: methodOp(onKeyPress), - triggerOnKeyUp: onKeyUp, - - execCommand: function (cmd) { - if (commands.hasOwnProperty(cmd)) - return commands[cmd].call(null, this); - }, - - triggerElectric: methodOp(function (text) { triggerElectric(this, text); }), - - findPosH: function (from, amount, unit, visually) { - var dir = 1; - if (amount < 0) { dir = -1; amount = -amount; } - for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { - cur = findPosH(this.doc, cur, dir, unit, visually); - if (cur.hitSide) break; - } - return cur; - }, - - moveH: methodOp(function (dir, unit) { - var cm = this; - cm.extendSelectionsBy(function (range) { - if (cm.display.shift || cm.doc.extend || range.empty()) - return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually); - else - return dir < 0 ? range.from() : range.to(); - }, sel_move); - }), - - deleteH: methodOp(function (dir, unit) { - var sel = this.doc.sel, doc = this.doc; - if (sel.somethingSelected()) - doc.replaceSelection("", null, "+delete"); - else - deleteNearSelection(this, function (range) { - var other = findPosH(doc, range.head, dir, unit, false); - return dir < 0 ? { from: other, to: range.head } : { from: range.head, to: other }; - }); - }), - - findPosV: function (from, amount, unit, goalColumn) { - var dir = 1, x = goalColumn; - if (amount < 0) { dir = -1; amount = -amount; } - for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) { - var coords = cursorCoords(this, cur, "div"); - if (x == null) x = coords.left; - else coords.left = x; - cur = findPosV(this, coords, dir, unit); - if (cur.hitSide) break; - } - return cur; - }, - - moveV: methodOp(function (dir, unit) { - var cm = this, doc = this.doc, goals = []; - var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected(); - doc.extendSelectionsBy(function (range) { - if (collapse) - return dir < 0 ? range.from() : range.to(); - var headPos = cursorCoords(cm, range.head, "div"); - if (range.goalColumn != null) headPos.left = range.goalColumn; - goals.push(headPos.left); - var pos = findPosV(cm, headPos, dir, unit); - if (unit == "page" && range == doc.sel.primary()) - addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top); - return pos; - }, sel_move); - if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++) - doc.sel.ranges[i].goalColumn = goals[i]; - }), - - // Find the word at the given position (as returned by coordsChar). - findWordAt: function (pos) { - var doc = this.doc, line = getLine(doc, pos.line).text; - var start = pos.ch, end = pos.ch; - if (line) { - var helper = this.getHelper(pos, "wordChars"); - if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end; - var startChar = line.charAt(start); - var check = isWordChar(startChar, helper) - ? function (ch) { return isWordChar(ch, helper); } - : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } - : function (ch) { return !/\s/.test(ch) && !isWordChar(ch); }; - while (start > 0 && check(line.charAt(start - 1))) --start; - while (end < line.length && check(line.charAt(end))) ++end; - } - return new Range(Pos(pos.line, start), Pos(pos.line, end)); - }, - - toggleOverwrite: function (value) { - if (value != null && value == this.state.overwrite) return; - if (this.state.overwrite = !this.state.overwrite) - addClass(this.display.cursorDiv, "CodeMirror-overwrite"); - else - rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); - - signal(this, "overwriteToggle", this, this.state.overwrite); - }, - hasFocus: function () { return this.display.input.getField() == activeElt(); }, - isReadOnly: function () { return !!(this.options.readOnly || this.doc.cantEdit); }, - - scrollTo: methodOp(function (x, y) { - if (x != null || y != null) resolveScrollToPos(this); - if (x != null) this.curOp.scrollLeft = x; - if (y != null) this.curOp.scrollTop = y; - }), - getScrollInfo: function () { - var scroller = this.display.scroller; - return { - left: scroller.scrollLeft, top: scroller.scrollTop, - height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, - width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, - clientHeight: displayHeight(this), clientWidth: displayWidth(this) - }; - }, - - scrollIntoView: methodOp(function (range, margin) { - if (range == null) { - range = { from: this.doc.sel.primary().head, to: null }; - if (margin == null) margin = this.options.cursorScrollMargin; - } else if (typeof range == "number") { - range = { from: Pos(range, 0), to: null }; - } else if (range.from == null) { - range = { from: range, to: null }; - } - if (!range.to) range.to = range.from; - range.margin = margin || 0; - - if (range.from.line != null) { - resolveScrollToPos(this); - this.curOp.scrollToPos = range; - } else { - var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left), - Math.min(range.from.top, range.to.top) - range.margin, - Math.max(range.from.right, range.to.right), - Math.max(range.from.bottom, range.to.bottom) + range.margin); - this.scrollTo(sPos.scrollLeft, sPos.scrollTop); - } - }), - - setSize: methodOp(function (width, height) { - var cm = this; - function interpret(val) { - return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; - } - if (width != null) cm.display.wrapper.style.width = interpret(width); - if (height != null) cm.display.wrapper.style.height = interpret(height); - if (cm.options.lineWrapping) clearLineMeasurementCache(this); - var lineNo = cm.display.viewFrom; - cm.doc.iter(lineNo, cm.display.viewTo, function (line) { - if (line.widgets) for (var i = 0; i < line.widgets.length; i++) - if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; } - ++lineNo; - }); - cm.curOp.forceUpdate = true; - signal(cm, "refresh", this); - }), - - operation: function (f) { return runInOp(this, f); }, - - refresh: methodOp(function () { - var oldHeight = this.display.cachedTextHeight; - regChange(this); - this.curOp.forceUpdate = true; - clearCaches(this); - this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop); - updateGutterSpace(this); - if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) - estimateLineHeights(this); - signal(this, "refresh", this); - }), - - swapDoc: methodOp(function (doc) { - var old = this.doc; - old.cm = null; - attachDoc(this, doc); - clearCaches(this); - this.display.input.reset(); - this.scrollTo(doc.scrollLeft, doc.scrollTop); - this.curOp.forceScroll = true; - signalLater(this, "swapDoc", this, old); - return old; - }), - - getInputField: function () { return this.display.input.getField(); }, - getWrapperElement: function () { return this.display.wrapper; }, - getScrollerElement: function () { return this.display.scroller; }, - getGutterElement: function () { return this.display.gutters; } - }; - eventMixin(CodeMirror); - - // OPTION DEFAULTS - - // The default configuration options. - var defaults = CodeMirror.defaults = {}; - // Functions to run when options are changed. - var optionHandlers = CodeMirror.optionHandlers = {}; - - function option(name, deflt, handle, notOnInit) { - CodeMirror.defaults[name] = deflt; - if (handle) optionHandlers[name] = - notOnInit ? function (cm, val, old) { if (old != Init) handle(cm, val, old); } : handle; - } - - // Passed to option handlers when there is no old value. - var Init = CodeMirror.Init = { toString: function () { return "CodeMirror.Init"; } }; - - // These two are, on init, called from the constructor because they - // have to be initialized before the editor can start at all. - option("value", "", function (cm, val) { - cm.setValue(val); - }, true); - option("mode", null, function (cm, val) { - cm.doc.modeOption = val; - loadMode(cm); - }, true); - - option("indentUnit", 2, loadMode, true); - option("indentWithTabs", false); - option("smartIndent", true); - option("tabSize", 4, function (cm) { - resetModeState(cm); - clearCaches(cm); - regChange(cm); - }, true); - option("lineSeparator", null, function (cm, val) { - cm.doc.lineSep = val; - if (!val) return; - var newBreaks = [], lineNo = cm.doc.first; - cm.doc.iter(function (line) { - for (var pos = 0; ;) { - var found = line.text.indexOf(val, pos); - if (found == -1) break; - pos = found + val.length; - newBreaks.push(Pos(lineNo, found)); - } - lineNo++; - }); - for (var i = newBreaks.length - 1; i >= 0; i--) - replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) - }); - option("specialChars", /[\u0000-\u001f\u007f\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) { - cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); - if (old != CodeMirror.Init) cm.refresh(); - }); - option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { cm.refresh(); }, true); - option("electricChars", true); - option("inputStyle", mobile ? "contenteditable" : "textarea", function () { - throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME - }, true); - option("rtlMoveVisually", !windows); - option("wholeLineUpdateBefore", true); - - option("theme", "default", function (cm) { - themeChanged(cm); - guttersChanged(cm); - }, true); - option("keyMap", "default", function (cm, val, old) { - var next = getKeyMap(val); - var prev = old != CodeMirror.Init && getKeyMap(old); - if (prev && prev.detach) prev.detach(cm, next); - if (next.attach) next.attach(cm, prev || null); - }); - option("extraKeys", null); - - option("lineWrapping", false, wrappingChanged, true); - option("gutters", [], function (cm) { - setGuttersForLineNumbers(cm.options); - guttersChanged(cm); - }, true); - option("fixedGutter", true, function (cm, val) { - cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; - cm.refresh(); - }, true); - option("coverGutterNextToScrollbar", false, function (cm) { updateScrollbars(cm); }, true); - option("scrollbarStyle", "native", function (cm) { - initScrollbars(cm); - updateScrollbars(cm); - cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); - cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); - }, true); - option("lineNumbers", false, function (cm) { - setGuttersForLineNumbers(cm.options); - guttersChanged(cm); - }, true); - option("firstLineNumber", 1, guttersChanged, true); - option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true); - option("showCursorWhenSelecting", false, updateSelection, true); - - option("resetSelectionOnContextMenu", true); - option("lineWiseCopyCut", true); - - option("readOnly", false, function (cm, val) { - if (val == "nocursor") { - onBlur(cm); - cm.display.input.blur(); - cm.display.disabled = true; + // Adjust the line structure + if (change.full) { + doc.insert(0, linesFor(0, text.length)); + doc.remove(text.length, doc.size - text.length); + } else if (isWholeLineUpdate(doc, change)) { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + var added = linesFor(0, text.length - 1); + update(lastLine, lastLine.text, lastSpans); + if (nlines) doc.remove(from.line, nlines); + if (added.length) doc.insert(from.line, added); + } else if (firstLine == lastLine) { + if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); } else { - cm.display.disabled = false; + var added = linesFor(1, text.length - 1); + added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + doc.insert(from.line + 1, added); } - cm.display.input.readOnlyChanged(val) - }); - option("disableInput", false, function (cm, val) { if (!val) cm.display.input.reset(); }, true); - option("dragDrop", true, dragDropChanged); - option("allowDropFileTypes", null); + } else if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); + doc.remove(from.line + 1, nlines); + } else { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); + var added = linesFor(1, text.length - 1); + if (nlines > 1) doc.remove(from.line + 1, nlines - 1); + doc.insert(from.line + 1, added); + } - option("cursorBlinkRate", 530); - option("cursorScrollMargin", 0); - option("cursorHeight", 1, updateSelection, true); - option("singleCursorHeightPerLine", true, updateSelection, true); - option("workTime", 100); - option("workDelay", 100); - option("flattenSpans", true, resetModeState, true); - option("addModeClass", false, resetModeState, true); - option("pollInterval", 100); - option("undoDepth", 200, function (cm, val) { cm.doc.history.undoDepth = val; }); - option("historyEventDelay", 1250); - option("viewportMargin", 10, function (cm) { cm.refresh(); }, true); - option("maxHighlightLength", 10000, resetModeState, true); - option("moveInputWithCursor", true, function (cm, val) { - if (!val) cm.display.input.resetPosition(); - }); + signalLater(doc, "change", doc, change); + } - option("tabindex", null, function (cm, val) { - cm.display.input.getField().tabIndex = val || ""; - }); - option("autofocus", null); + // The document is represented as a BTree consisting of leaves, with + // chunk of lines in them, and branches, with up to ten leaves or + // other branch nodes below them. The top node is always a branch + // node, and is the document object itself (meaning it has + // additional methods and properties). + // + // All nodes have parent links. The tree is used both to go from + // line numbers to line objects, and to go from objects to numbers. + // It also indexes by height, and is used to convert between height + // and line object, and to find the total height of the document. + // + // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html - // MODE DEFINITION AND QUERYING + function LeafChunk(lines) { + this.lines = lines; + this.parent = null; + for (var i = 0, height = 0; i < lines.length; ++i) { + lines[i].parent = this; + height += lines[i].height; + } + this.height = height; + } - // Known modes, by name and by MIME - var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {}; - - // Extra arguments are stored as the mode's dependencies, which is - // used by (legacy) mechanisms like loadmode.js to automatically - // load a mode. (Preferred mechanism is the require/define calls.) - CodeMirror.defineMode = function (name, mode) { - if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; - if (arguments.length > 2) - mode.dependencies = Array.prototype.slice.call(arguments, 2); - modes[name] = mode; - }; - - CodeMirror.defineMIME = function (mime, spec) { - mimeModes[mime] = spec; - }; - - // Given a MIME type, a {name, ...options} config object, or a name - // string, return a mode config object. - CodeMirror.resolveMode = function (spec) { - if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { - spec = mimeModes[spec]; - } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { - var found = mimeModes[spec.name]; - if (typeof found == "string") found = { name: found }; - spec = createObj(found, spec); - spec.name = found.name; - } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { - return CodeMirror.resolveMode("application/xml"); + LeafChunk.prototype = { + chunkSize: function () { return this.lines.length; }, + // Remove the n lines at offset 'at'. + removeInner: function (at, n) { + for (var i = at, e = at + n; i < e; ++i) { + var line = this.lines[i]; + this.height -= line.height; + cleanUpLine(line); + signalLater(line, "delete"); } - if (typeof spec == "string") return { name: spec }; - else return spec || { name: "null" }; - }; + this.lines.splice(at, n); + }, + // Helper used to collapse a small branch into a single leaf. + collapse: function (lines) { + lines.push.apply(lines, this.lines); + }, + // Insert the given array of lines at offset 'at', count them as + // having the given height. + insertInner: function (at, lines, height) { + this.height += height; + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); + for (var i = 0; i < lines.length; ++i) lines[i].parent = this; + }, + // Used to iterate over a part of the tree. + iterN: function (at, n, op) { + for (var e = at + n; at < e; ++at) + if (op(this.lines[at])) return true; + } + }; - // Given a mode spec (anything that resolveMode accepts), find and - // initialize an actual mode object. - CodeMirror.getMode = function (options, spec) { - var spec = CodeMirror.resolveMode(spec); - var mfactory = modes[spec.name]; - if (!mfactory) return CodeMirror.getMode(options, "text/plain"); - var modeObj = mfactory(options, spec); - if (modeExtensions.hasOwnProperty(spec.name)) { - var exts = modeExtensions[spec.name]; - for (var prop in exts) { - if (!exts.hasOwnProperty(prop)) continue; - if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]; - modeObj[prop] = exts[prop]; - } + function BranchChunk(children) { + this.children = children; + var size = 0, height = 0; + for (var i = 0; i < children.length; ++i) { + var ch = children[i]; + size += ch.chunkSize(); height += ch.height; + ch.parent = this; + } + this.size = size; + this.height = height; + this.parent = null; + } + + BranchChunk.prototype = { + chunkSize: function () { return this.size; }, + removeInner: function (at, n) { + this.size -= n; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var rm = Math.min(n, sz - at), oldHeight = child.height; + child.removeInner(at, rm); + this.height -= oldHeight - child.height; + if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } + if ((n -= rm) == 0) break; + at = 0; + } else at -= sz; } - modeObj.name = spec.name; - if (spec.helperType) modeObj.helperType = spec.helperType; - if (spec.modeProps) for (var prop in spec.modeProps) - modeObj[prop] = spec.modeProps[prop]; - - return modeObj; - }; - - // Minimal default mode. - CodeMirror.defineMode("null", function () { - return { token: function (stream) { stream.skipToEnd(); } }; - }); - CodeMirror.defineMIME("text/plain", "null"); - - // This can be used to attach properties to mode objects from - // outside the actual mode definition. - var modeExtensions = CodeMirror.modeExtensions = {}; - CodeMirror.extendMode = function (mode, properties) { - var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); - copyObj(properties, exts); - }; - - // EXTENSIONS - - CodeMirror.defineExtension = function (name, func) { - CodeMirror.prototype[name] = func; - }; - CodeMirror.defineDocExtension = function (name, func) { - Doc.prototype[name] = func; - }; - CodeMirror.defineOption = option; - - var initHooks = []; - CodeMirror.defineInitHook = function (f) { initHooks.push(f); }; - - var helpers = CodeMirror.helpers = {}; - CodeMirror.registerHelper = function (type, name, value) { - if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = { _global: [] }; - helpers[type][name] = value; - }; - CodeMirror.registerGlobalHelper = function (type, name, predicate, value) { - CodeMirror.registerHelper(type, name, value); - helpers[type]._global.push({ pred: predicate, val: value }); - }; - - // MODE STATE HANDLING - - // Utility functions for working with state. Exported because nested - // modes need to do this for their inner modes. - - var copyState = CodeMirror.copyState = function (mode, state) { - if (state === true) return state; - if (mode.copyState) return mode.copyState(state); - var nstate = {}; - for (var n in state) { - var val = state[n]; - if (val instanceof Array) val = val.concat([]); - nstate[n] = val; + // If the result is smaller than 25 lines, ensure that it is a + // single leaf node. + if (this.size - n < 25 && + (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { + var lines = []; + this.collapse(lines); + this.children = [new LeafChunk(lines)]; + this.children[0].parent = this; } - return nstate; - }; - - var startState = CodeMirror.startState = function (mode, a1, a2) { - return mode.startState ? mode.startState(a1, a2) : true; - }; - - // Given a mode and a state (for that mode), find the inner mode and - // state at the position that the state refers to. - CodeMirror.innerMode = function (mode, state) { - while (mode.innerMode) { - var info = mode.innerMode(state); - if (!info || info.mode == mode) break; - state = info.state; - mode = info.mode; - } - return info || { mode: mode, state: state }; - }; - - // STANDARD COMMANDS - - // Commands are parameter-less actions that can be performed on an - // editor, mostly used for keybindings. - var commands = CodeMirror.commands = { - selectAll: function (cm) { cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); }, - singleSelection: function (cm) { - cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); - }, - killLine: function (cm) { - deleteNearSelection(cm, function (range) { - if (range.empty()) { - var len = getLine(cm.doc, range.head.line).text.length; - if (range.head.ch == len && range.head.line < cm.lastLine()) - return { from: range.head, to: Pos(range.head.line + 1, 0) }; - else - return { from: range.head, to: Pos(range.head.line, len) }; - } else { - return { from: range.from(), to: range.to() }; - } - }); - }, - deleteLine: function (cm) { - deleteNearSelection(cm, function (range) { - return { - from: Pos(range.from().line, 0), - to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) - }; - }); - }, - delLineLeft: function (cm) { - deleteNearSelection(cm, function (range) { - return { from: Pos(range.from().line, 0), to: range.from() }; - }); - }, - delWrappedLineLeft: function (cm) { - deleteNearSelection(cm, function (range) { - var top = cm.charCoords(range.head, "div").top + 5; - var leftPos = cm.coordsChar({ left: 0, top: top }, "div"); - return { from: leftPos, to: range.from() }; - }); - }, - delWrappedLineRight: function (cm) { - deleteNearSelection(cm, function (range) { - var top = cm.charCoords(range.head, "div").top + 5; - var rightPos = cm.coordsChar({ left: cm.display.lineDiv.offsetWidth + 100, top: top }, "div"); - return { from: range.from(), to: rightPos }; - }); - }, - undo: function (cm) { cm.undo(); }, - redo: function (cm) { cm.redo(); }, - undoSelection: function (cm) { cm.undoSelection(); }, - redoSelection: function (cm) { cm.redoSelection(); }, - goDocStart: function (cm) { cm.extendSelection(Pos(cm.firstLine(), 0)); }, - goDocEnd: function (cm) { cm.extendSelection(Pos(cm.lastLine())); }, - goLineStart: function (cm) { - cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, - { origin: "+move", bias: 1 }); - }, - goLineStartSmart: function (cm) { - cm.extendSelectionsBy(function (range) { - return lineStartSmart(cm, range.head); - }, { origin: "+move", bias: 1 }); - }, - goLineEnd: function (cm) { - cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, - { origin: "+move", bias: -1 }); - }, - goLineRight: function (cm) { - cm.extendSelectionsBy(function (range) { - var top = cm.charCoords(range.head, "div").top + 5; - return cm.coordsChar({ left: cm.display.lineDiv.offsetWidth + 100, top: top }, "div"); - }, sel_move); - }, - goLineLeft: function (cm) { - cm.extendSelectionsBy(function (range) { - var top = cm.charCoords(range.head, "div").top + 5; - return cm.coordsChar({ left: 0, top: top }, "div"); - }, sel_move); - }, - goLineLeftSmart: function (cm) { - cm.extendSelectionsBy(function (range) { - var top = cm.charCoords(range.head, "div").top + 5; - var pos = cm.coordsChar({ left: 0, top: top }, "div"); - if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head); - return pos; - }, sel_move); - }, - goLineUp: function (cm) { cm.moveV(-1, "line"); }, - goLineDown: function (cm) { cm.moveV(1, "line"); }, - goPageUp: function (cm) { cm.moveV(-1, "page"); }, - goPageDown: function (cm) { cm.moveV(1, "page"); }, - goCharLeft: function (cm) { cm.moveH(-1, "char"); }, - goCharRight: function (cm) { cm.moveH(1, "char"); }, - goColumnLeft: function (cm) { cm.moveH(-1, "column"); }, - goColumnRight: function (cm) { cm.moveH(1, "column"); }, - goWordLeft: function (cm) { cm.moveH(-1, "word"); }, - goGroupRight: function (cm) { cm.moveH(1, "group"); }, - goGroupLeft: function (cm) { cm.moveH(-1, "group"); }, - goWordRight: function (cm) { cm.moveH(1, "word"); }, - delCharBefore: function (cm) { cm.deleteH(-1, "char"); }, - delCharAfter: function (cm) { cm.deleteH(1, "char"); }, - delWordBefore: function (cm) { cm.deleteH(-1, "word"); }, - delWordAfter: function (cm) { cm.deleteH(1, "word"); }, - delGroupBefore: function (cm) { cm.deleteH(-1, "group"); }, - delGroupAfter: function (cm) { cm.deleteH(1, "group"); }, - indentAuto: function (cm) { cm.indentSelection("smart"); }, - indentMore: function (cm) { cm.indentSelection("add"); }, - indentLess: function (cm) { cm.indentSelection("subtract"); }, - insertTab: function (cm) { cm.replaceSelection("\t"); }, - insertSoftTab: function (cm) { - var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; - for (var i = 0; i < ranges.length; i++) { - var pos = ranges[i].from(); - var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); - spaces.push(spaceStr(tabSize - col % tabSize)); - } - cm.replaceSelections(spaces); - }, - defaultTab: function (cm) { - if (cm.somethingSelected()) cm.indentSelection("add"); - else cm.execCommand("insertTab"); - }, - transposeChars: function (cm) { - runInOp(cm, function () { - var ranges = cm.listSelections(), newSel = []; - for (var i = 0; i < ranges.length; i++) { - var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; - if (line) { - if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1); - if (cur.ch > 0) { - cur = new Pos(cur.line, cur.ch + 1); - cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), - Pos(cur.line, cur.ch - 2), cur, "+transpose"); - } else if (cur.line > cm.doc.first) { - var prev = getLine(cm.doc, cur.line - 1).text; - if (prev) - cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + - prev.charAt(prev.length - 1), - Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose"); - } + }, + collapse: function (lines) { + for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines); + }, + insertInner: function (at, lines, height) { + this.size += lines.length; + this.height += height; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at <= sz) { + child.insertInner(at, lines, height); + if (child.lines && child.lines.length > 50) { + // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. + // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. + var remaining = child.lines.length % 25 + 25 + for (var pos = remaining; pos < child.lines.length;) { + var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); + child.height -= leaf.height; + this.children.splice(++i, 0, leaf); + leaf.parent = this; } - newSel.push(new Range(cur, cur)); + child.lines = child.lines.slice(0, remaining); + this.maybeSpill(); } - cm.setSelections(newSel); - }); - }, - newlineAndIndent: function (cm) { - runInOp(cm, function () { - var len = cm.listSelections().length; - for (var i = 0; i < len; i++) { - var range = cm.listSelections()[i]; - cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input"); - cm.indentLine(range.from().line + 1, null, true); - } - ensureCursorVisible(cm); - }); - }, - openLine: function (cm) { cm.replaceSelection("\n", "start") }, - toggleOverwrite: function (cm) { cm.toggleOverwrite(); } - }; - - - // STANDARD KEYMAPS - - var keyMap = CodeMirror.keyMap = {}; - - keyMap.basic = { - "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", - "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", - "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", - "Tab": "defaultTab", "Shift-Tab": "indentAuto", - "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", - "Esc": "singleSelection" - }; - // Note that the save and find-related commands aren't defined by - // default. User code or addons can define them. Unknown commands - // are simply ignored. - keyMap.pcDefault = { - "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", - "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", - "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", - "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", - "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", - "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", - "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", - fallthrough: "basic" - }; - // Very basic readline/emacs-style bindings, which are standard on Mac. - keyMap.emacsy = { - "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", - "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", - "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", - "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", - "Ctrl-O": "openLine" - }; - keyMap.macDefault = { - "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", - "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", - "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", - "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", - "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", - "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", - "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", - fallthrough: ["basic", "emacsy"] - }; - keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; - - // KEYMAP DISPATCH - - function normalizeKeyName(name) { - var parts = name.split(/-(?!$)/), name = parts[parts.length - 1]; - var alt, ctrl, shift, cmd; - for (var i = 0; i < parts.length - 1; i++) { - var mod = parts[i]; - if (/^(cmd|meta|m)$/i.test(mod)) cmd = true; - else if (/^a(lt)?$/i.test(mod)) alt = true; - else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true; - else if (/^s(hift)$/i.test(mod)) shift = true; - else throw new Error("Unrecognized modifier name: " + mod); - } - if (alt) name = "Alt-" + name; - if (ctrl) name = "Ctrl-" + name; - if (cmd) name = "Cmd-" + name; - if (shift) name = "Shift-" + name; - return name; - } - - // This is a kludge to keep keymaps mostly working as raw objects - // (backwards compatibility) while at the same time support features - // like normalization and multi-stroke key bindings. It compiles a - // new normalized keymap, and then updates the old object to reflect - // this. - CodeMirror.normalizeKeyMap = function (keymap) { - var copy = {}; - for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) { - var value = keymap[keyname]; - if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue; - if (value == "...") { delete keymap[keyname]; continue; } - - var keys = map(keyname.split(" "), normalizeKeyName); - for (var i = 0; i < keys.length; i++) { - var val, name; - if (i == keys.length - 1) { - name = keys.join(" "); - val = value; - } else { - name = keys.slice(0, i + 1).join(" "); - val = "..."; - } - var prev = copy[name]; - if (!prev) copy[name] = val; - else if (prev != val) throw new Error("Inconsistent bindings for " + name); + break; } - delete keymap[keyname]; + at -= sz; } - for (var prop in copy) keymap[prop] = copy[prop]; - return keymap; - }; - - var lookupKey = CodeMirror.lookupKey = function (key, map, handle, context) { - map = getKeyMap(map); - var found = map.call ? map.call(key, context) : map[key]; - if (found === false) return "nothing"; - if (found === "...") return "multi"; - if (found != null && handle(found)) return "handled"; - - if (map.fallthrough) { - if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") - return lookupKey(key, map.fallthrough, handle, context); - for (var i = 0; i < map.fallthrough.length; i++) { - var result = lookupKey(key, map.fallthrough[i], handle, context); - if (result) return result; - } - } - }; - - // Modifier key presses don't count as 'real' key presses for the - // purpose of keymap fallthrough. - var isModifierKey = CodeMirror.isModifierKey = function (value) { - var name = typeof value == "string" ? value : keyNames[value.keyCode]; - return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; - }; - - // Look up the name of a key as indicated by an event object. - var keyName = CodeMirror.keyName = function (event, noShift) { - if (presto && event.keyCode == 34 && event["char"]) return false; - var base = keyNames[event.keyCode], name = base; - if (name == null || event.altGraphKey) return false; - if (event.altKey && base != "Alt") name = "Alt-" + name; - if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name; - if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name; - if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name; - return name; - }; - - function getKeyMap(val) { - return typeof val == "string" ? keyMap[val] : val; - } - - // FROMTEXTAREA - - CodeMirror.fromTextArea = function (textarea, options) { - options = options ? copyObj(options) : {}; - options.value = textarea.value; - if (!options.tabindex && textarea.tabIndex) - options.tabindex = textarea.tabIndex; - if (!options.placeholder && textarea.placeholder) - options.placeholder = textarea.placeholder; - // Set autofocus to true if this textarea is focused, or if it has - // autofocus and no other element is focused. - if (options.autofocus == null) { - var hasFocus = activeElt(); - options.autofocus = hasFocus == textarea || - textarea.getAttribute("autofocus") != null && hasFocus == document.body; - } - - function save() { textarea.value = cm.getValue(); } - if (textarea.form) { - on(textarea.form, "submit", save); - // Deplorable hack to make the submit method do the right thing. - if (!options.leaveSubmitMethodAlone) { - var form = textarea.form, realSubmit = form.submit; - try { - var wrappedSubmit = form.submit = function () { - save(); - form.submit = realSubmit; - form.submit(); - form.submit = wrappedSubmit; - }; - } catch (e) { } - } - } - - options.finishInit = function (cm) { - cm.save = save; - cm.getTextArea = function () { return textarea; }; - cm.toTextArea = function () { - cm.toTextArea = isNaN; // Prevent this from being ran twice - save(); - textarea.parentNode.removeChild(cm.getWrapperElement()); - textarea.style.display = ""; - if (textarea.form) { - off(textarea.form, "submit", save); - if (typeof textarea.form.submit == "function") - textarea.form.submit = realSubmit; - } - }; - }; - - textarea.style.display = "none"; - var cm = CodeMirror(function (node) { - textarea.parentNode.insertBefore(node, textarea.nextSibling); - }, options); - return cm; - }; - - // STRING STREAM - - // Fed to the mode parsers, provides helper functions to make - // parsers more succinct. - - var StringStream = CodeMirror.StringStream = function (string, tabSize) { - this.pos = this.start = 0; - this.string = string; - this.tabSize = tabSize || 8; - this.lastColumnPos = this.lastColumnValue = 0; - this.lineStart = 0; - }; - - StringStream.prototype = { - eol: function () { return this.pos >= this.string.length; }, - sol: function () { return this.pos == this.lineStart; }, - peek: function () { return this.string.charAt(this.pos) || undefined; }, - next: function () { - if (this.pos < this.string.length) - return this.string.charAt(this.pos++); - }, - eat: function (match) { - var ch = this.string.charAt(this.pos); - if (typeof match == "string") var ok = ch == match; - else var ok = ch && (match.test ? match.test(ch) : match(ch)); - if (ok) { ++this.pos; return ch; } - }, - eatWhile: function (match) { - var start = this.pos; - while (this.eat(match)) { } - return this.pos > start; - }, - eatSpace: function () { - var start = this.pos; - while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; - return this.pos > start; - }, - skipToEnd: function () { this.pos = this.string.length; }, - skipTo: function (ch) { - var found = this.string.indexOf(ch, this.pos); - if (found > -1) { this.pos = found; return true; } - }, - backUp: function (n) { this.pos -= n; }, - column: function () { - if (this.lastColumnPos < this.start) { - this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); - this.lastColumnPos = this.start; - } - return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); - }, - indentation: function () { - return countColumn(this.string, null, this.tabSize) - - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0); - }, - match: function (pattern, consume, caseInsensitive) { - if (typeof pattern == "string") { - var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; - var substr = this.string.substr(this.pos, pattern.length); - if (cased(substr) == cased(pattern)) { - if (consume !== false) this.pos += pattern.length; - return true; - } + }, + // When a node has grown, check whether it should be split. + maybeSpill: function () { + if (this.children.length <= 10) return; + var me = this; + do { + var spilled = me.children.splice(me.children.length - 5, 5); + var sibling = new BranchChunk(spilled); + if (!me.parent) { // Become the parent node + var copy = new BranchChunk(me.children); + copy.parent = me; + me.children = [copy, sibling]; + me = copy; } else { - var match = this.string.slice(this.pos).match(pattern); - if (match && match.index > 0) return null; - if (match && consume !== false) this.pos += match[0].length; - return match; - } - }, - current: function () { return this.string.slice(this.start, this.pos); }, - hideFirstChars: function (n, inner) { - this.lineStart += n; - try { return inner(); } - finally { this.lineStart -= n; } - } - }; - - // TEXTMARKERS - - // Created with markText and setBookmark methods. A TextMarker is a - // handle that can be used to clear or find a marked position in the - // document. Line objects hold arrays (markedSpans) containing - // {from, to, marker} object pointing to such marker objects, and - // indicating that such a marker is present on that line. Multiple - // lines may point to the same marker when it spans across lines. - // The spans will have null for their from/to properties when the - // marker continues beyond the start/end of the line. Markers have - // links back to the lines they currently touch. - - var nextMarkerId = 0; - - var TextMarker = CodeMirror.TextMarker = function (doc, type) { - this.lines = []; - this.type = type; - this.doc = doc; - this.id = ++nextMarkerId; - }; - eventMixin(TextMarker); - - // Clear the marker. - TextMarker.prototype.clear = function () { - if (this.explicitlyCleared) return; - var cm = this.doc.cm, withOp = cm && !cm.curOp; - if (withOp) startOperation(cm); - if (hasHandler(this, "clear")) { - var found = this.find(); - if (found) signalLater(this, "clear", found.from, found.to); - } - var min = null, max = null; - for (var i = 0; i < this.lines.length; ++i) { - var line = this.lines[i]; - var span = getMarkedSpanFor(line.markedSpans, this); - if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text"); - else if (cm) { - if (span.to != null) max = lineNo(line); - if (span.from != null) min = lineNo(line); - } - line.markedSpans = removeMarkedSpan(line.markedSpans, span); - if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) - updateLineHeight(line, textHeight(cm.display)); - } - if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) { - var visual = visualLine(this.lines[i]), len = lineLength(visual); - if (len > cm.display.maxLineLength) { - cm.display.maxLine = visual; - cm.display.maxLineLength = len; - cm.display.maxLineChanged = true; - } - } - - if (min != null && cm && this.collapsed) regChange(cm, min, max + 1); - this.lines.length = 0; - this.explicitlyCleared = true; - if (this.atomic && this.doc.cantEdit) { - this.doc.cantEdit = false; - if (cm) reCheckSelection(cm.doc); - } - if (cm) signalLater(cm, "markerCleared", cm, this); - if (withOp) endOperation(cm); - if (this.parent) this.parent.clear(); - }; - - // Find the position of the marker in the document. Returns a {from, - // to} object by default. Side can be passed to get a specific side - // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the - // Pos objects returned contain a line object, rather than a line - // number (used to prevent looking up the same line twice). - TextMarker.prototype.find = function (side, lineObj) { - if (side == null && this.type == "bookmark") side = 1; - var from, to; - for (var i = 0; i < this.lines.length; ++i) { - var line = this.lines[i]; - var span = getMarkedSpanFor(line.markedSpans, this); - if (span.from != null) { - from = Pos(lineObj ? line : lineNo(line), span.from); - if (side == -1) return from; - } - if (span.to != null) { - to = Pos(lineObj ? line : lineNo(line), span.to); - if (side == 1) return to; - } - } - return from && { from: from, to: to }; - }; - - // Signals that the marker's widget changed, and surrounding layout - // should be recomputed. - TextMarker.prototype.changed = function () { - var pos = this.find(-1, true), widget = this, cm = this.doc.cm; - if (!pos || !cm) return; - runInOp(cm, function () { - var line = pos.line, lineN = lineNo(pos.line); - var view = findViewForLine(cm, lineN); - if (view) { - clearLineMeasurementCacheFor(view); - cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; - } - cm.curOp.updateMaxLine = true; - if (!lineIsHidden(widget.doc, line) && widget.height != null) { - var oldHeight = widget.height; - widget.height = null; - var dHeight = widgetHeight(widget) - oldHeight; - if (dHeight) - updateLineHeight(line, line.height + dHeight); - } - }); - }; - - TextMarker.prototype.attachLine = function (line) { - if (!this.lines.length && this.doc.cm) { - var op = this.doc.cm.curOp; - if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) - (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); - } - this.lines.push(line); - }; - TextMarker.prototype.detachLine = function (line) { - this.lines.splice(indexOf(this.lines, line), 1); - if (!this.lines.length && this.doc.cm) { - var op = this.doc.cm.curOp; - (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); - } - }; - - // Collapsed markers have unique ids, in order to be able to order - // them, which is needed for uniquely determining an outer marker - // when they overlap (they may nest, but not partially overlap). - var nextMarkerId = 0; - - // Create a marker, wire it up to the right lines, and - function markText(doc, from, to, options, type) { - // Shared markers (across linked documents) are handled separately - // (markTextShared will call out to this again, once per - // document). - if (options && options.shared) return markTextShared(doc, from, to, options, type); - // Ensure we are in an operation. - if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type); - - var marker = new TextMarker(doc, type), diff = cmp(from, to); - if (options) copyObj(options, marker, false); - // Don't connect empty markers unless clearWhenEmpty is false - if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) - return marker; - if (marker.replacedWith) { - // Showing up as a widget implies collapsed (widget replaces text) - marker.collapsed = true; - marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget"); - if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true"); - if (options.insertLeft) marker.widgetNode.insertLeft = true; - } - if (marker.collapsed) { - if (conflictingCollapsedRange(doc, from.line, from, to, marker) || - from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) - throw new Error("Inserting collapsed marker partially overlapping an existing one"); - sawCollapsedSpans = true; - } - - if (marker.addToHistory) - addChangeToHistory(doc, { from: from, to: to, origin: "markText" }, doc.sel, NaN); - - var curLine = from.line, cm = doc.cm, updateMaxLine; - doc.iter(curLine, to.line + 1, function (line) { - if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) - updateMaxLine = true; - if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0); - addMarkedSpan(line, new MarkedSpan(marker, - curLine == from.line ? from.ch : null, - curLine == to.line ? to.ch : null)); - ++curLine; - }); - // lineIsHidden depends on the presence of the spans, so needs a second pass - if (marker.collapsed) doc.iter(from.line, to.line + 1, function (line) { - if (lineIsHidden(doc, line)) updateLineHeight(line, 0); - }); - - if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function () { marker.clear(); }); - - if (marker.readOnly) { - sawReadOnlySpans = true; - if (doc.history.done.length || doc.history.undone.length) - doc.clearHistory(); - } - if (marker.collapsed) { - marker.id = ++nextMarkerId; - marker.atomic = true; - } - if (cm) { - // Sync editor state - if (updateMaxLine) cm.curOp.updateMaxLine = true; - if (marker.collapsed) - regChange(cm, from.line, to.line + 1); - else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css) - for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text"); - if (marker.atomic) reCheckSelection(cm.doc); - signalLater(cm, "markerAdded", cm, marker); - } - return marker; - } - - // SHARED TEXTMARKERS - - // A shared marker spans multiple linked documents. It is - // implemented as a meta-marker-object controlling multiple normal - // markers. - var SharedTextMarker = CodeMirror.SharedTextMarker = function (markers, primary) { - this.markers = markers; - this.primary = primary; - for (var i = 0; i < markers.length; ++i) - markers[i].parent = this; - }; - eventMixin(SharedTextMarker); - - SharedTextMarker.prototype.clear = function () { - if (this.explicitlyCleared) return; - this.explicitlyCleared = true; - for (var i = 0; i < this.markers.length; ++i) - this.markers[i].clear(); - signalLater(this, "clear"); - }; - SharedTextMarker.prototype.find = function (side, lineObj) { - return this.primary.find(side, lineObj); - }; - - function markTextShared(doc, from, to, options, type) { - options = copyObj(options); - options.shared = false; - var markers = [markText(doc, from, to, options, type)], primary = markers[0]; - var widget = options.widgetNode; - linkedDocs(doc, function (doc) { - if (widget) options.widgetNode = widget.cloneNode(true); - markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); - for (var i = 0; i < doc.linked.length; ++i) - if (doc.linked[i].isParent) return; - primary = lst(markers); - }); - return new SharedTextMarker(markers, primary); - } - - function findSharedMarkers(doc) { - return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), - function (m) { return m.parent; }); - } - - function copySharedMarkers(doc, markers) { - for (var i = 0; i < markers.length; i++) { - var marker = markers[i], pos = marker.find(); - var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); - if (cmp(mFrom, mTo)) { - var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); - marker.markers.push(subMark); - subMark.parent = marker; + me.size -= sibling.size; + me.height -= sibling.height; + var myIndex = indexOf(me.parent.children, me); + me.parent.children.splice(myIndex + 1, 0, sibling); } + sibling.parent = me.parent; + } while (me.children.length > 10); + me.parent.maybeSpill(); + }, + iterN: function (at, n, op) { + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var used = Math.min(n, sz - at); + if (child.iterN(at, used, op)) return true; + if ((n -= used) == 0) break; + at = 0; + } else at -= sz; } } + }; - function detachSharedMarkers(markers) { - for (var i = 0; i < markers.length; i++) { - var marker = markers[i], linked = [marker.primary.doc];; - linkedDocs(marker.primary.doc, function (d) { linked.push(d); }); - for (var j = 0; j < marker.markers.length; j++) { - var subMarker = marker.markers[j]; - if (indexOf(linked, subMarker.doc) == -1) { - subMarker.parent = null; - marker.markers.splice(j--, 1); + var nextDocId = 0; + var Doc = CodeMirror.Doc = function (text, mode, firstLine, lineSep) { + if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep); + if (firstLine == null) firstLine = 0; + + BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); + this.first = firstLine; + this.scrollTop = this.scrollLeft = 0; + this.cantEdit = false; + this.cleanGeneration = 1; + this.frontier = firstLine; + var start = Pos(firstLine, 0); + this.sel = simpleSelection(start); + this.history = new History(null); + this.id = ++nextDocId; + this.modeOption = mode; + this.lineSep = lineSep; + this.extend = false; + + if (typeof text == "string") text = this.splitLines(text); + updateDoc(this, { from: start, to: start, text: text }); + setSelection(this, simpleSelection(start), sel_dontScroll); + }; + + Doc.prototype = createObj(BranchChunk.prototype, { + constructor: Doc, + // Iterate over the document. Supports two forms -- with only one + // argument, it calls that for each line in the document. With + // three, it iterates over the range given by the first two (with + // the second being non-inclusive). + iter: function (from, to, op) { + if (op) this.iterN(from - this.first, to - from, op); + else this.iterN(this.first, this.first + this.size, from); + }, + + // Non-public interface for adding and removing lines. + insert: function (at, lines) { + var height = 0; + for (var i = 0; i < lines.length; ++i) height += lines[i].height; + this.insertInner(at - this.first, lines, height); + }, + remove: function (at, n) { this.removeInner(at - this.first, n); }, + + // From here, the methods are part of the public interface. Most + // are also available from CodeMirror (editor) instances. + + getValue: function (lineSep) { + var lines = getLines(this, this.first, this.first + this.size); + if (lineSep === false) return lines; + return lines.join(lineSep || this.lineSeparator()); + }, + setValue: docMethodOp(function (code) { + var top = Pos(this.first, 0), last = this.first + this.size - 1; + makeChange(this, { + from: top, to: Pos(last, getLine(this, last).text.length), + text: this.splitLines(code), origin: "setValue", full: true + }, true); + setSelection(this, simpleSelection(top)); + }), + replaceRange: function (code, from, to, origin) { + from = clipPos(this, from); + to = to ? clipPos(this, to) : from; + replaceRange(this, code, from, to, origin); + }, + getRange: function (from, to, lineSep) { + var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); + if (lineSep === false) return lines; + return lines.join(lineSep || this.lineSeparator()); + }, + + getLine: function (line) { var l = this.getLineHandle(line); return l && l.text; }, + + getLineHandle: function (line) { if (isLine(this, line)) return getLine(this, line); }, + getLineNumber: function (line) { return lineNo(line); }, + + getLineHandleVisualStart: function (line) { + if (typeof line == "number") line = getLine(this, line); + return visualLine(line); + }, + + lineCount: function () { return this.size; }, + firstLine: function () { return this.first; }, + lastLine: function () { return this.first + this.size - 1; }, + + clipPos: function (pos) { return clipPos(this, pos); }, + + getCursor: function (start) { + var range = this.sel.primary(), pos; + if (start == null || start == "head") pos = range.head; + else if (start == "anchor") pos = range.anchor; + else if (start == "end" || start == "to" || start === false) pos = range.to(); + else pos = range.from(); + return pos; + }, + listSelections: function () { return this.sel.ranges; }, + somethingSelected: function () { return this.sel.somethingSelected(); }, + + setCursor: docMethodOp(function (line, ch, options) { + setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); + }), + setSelection: docMethodOp(function (anchor, head, options) { + setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); + }), + extendSelection: docMethodOp(function (head, other, options) { + extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); + }), + extendSelections: docMethodOp(function (heads, options) { + extendSelections(this, clipPosArray(this, heads), options); + }), + extendSelectionsBy: docMethodOp(function (f, options) { + var heads = map(this.sel.ranges, f); + extendSelections(this, clipPosArray(this, heads), options); + }), + setSelections: docMethodOp(function (ranges, primary, options) { + if (!ranges.length) return; + for (var i = 0, out = []; i < ranges.length; i++) + out[i] = new Range(clipPos(this, ranges[i].anchor), + clipPos(this, ranges[i].head)); + if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex); + setSelection(this, normalizeSelection(out, primary), options); + }), + addSelection: docMethodOp(function (anchor, head, options) { + var ranges = this.sel.ranges.slice(0); + ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); + setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); + }), + + getSelection: function (lineSep) { + var ranges = this.sel.ranges, lines; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + lines = lines ? lines.concat(sel) : sel; + } + if (lineSep === false) return lines; + else return lines.join(lineSep || this.lineSeparator()); + }, + getSelections: function (lineSep) { + var parts = [], ranges = this.sel.ranges; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator()); + parts[i] = sel; + } + return parts; + }, + replaceSelection: function (code, collapse, origin) { + var dup = []; + for (var i = 0; i < this.sel.ranges.length; i++) + dup[i] = code; + this.replaceSelections(dup, collapse, origin || "+input"); + }, + replaceSelections: docMethodOp(function (code, collapse, origin) { + var changes = [], sel = this.sel; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + changes[i] = { from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin }; + } + var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); + for (var i = changes.length - 1; i >= 0; i--) + makeChange(this, changes[i]); + if (newSel) setSelectionReplaceHistory(this, newSel); + else if (this.cm) ensureCursorVisible(this.cm); + }), + undo: docMethodOp(function () { makeChangeFromHistory(this, "undo"); }), + redo: docMethodOp(function () { makeChangeFromHistory(this, "redo"); }), + undoSelection: docMethodOp(function () { makeChangeFromHistory(this, "undo", true); }), + redoSelection: docMethodOp(function () { makeChangeFromHistory(this, "redo", true); }), + + setExtending: function (val) { this.extend = val; }, + getExtending: function () { return this.extend; }, + + historySize: function () { + var hist = this.history, done = 0, undone = 0; + for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done; + for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; + return { undo: done, redo: undone }; + }, + clearHistory: function () { this.history = new History(this.history.maxGeneration); }, + + markClean: function () { + this.cleanGeneration = this.changeGeneration(true); + }, + changeGeneration: function (forceSplit) { + if (forceSplit) + this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; + return this.history.generation; + }, + isClean: function (gen) { + return this.history.generation == (gen || this.cleanGeneration); + }, + + getHistory: function () { + return { + done: copyHistoryArray(this.history.done), + undone: copyHistoryArray(this.history.undone) + }; + }, + setHistory: function (histData) { + var hist = this.history = new History(this.history.maxGeneration); + hist.done = copyHistoryArray(histData.done.slice(0), null, true); + hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); + }, + + addLineClass: docMethodOp(function (handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass"; + if (!line[prop]) line[prop] = cls; + else if (classTest(cls).test(line[prop])) return false; + else line[prop] += " " + cls; + return true; + }); + }), + removeLineClass: docMethodOp(function (handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass"; + var cur = line[prop]; + if (!cur) return false; + else if (cls == null) line[prop] = null; + else { + var found = cur.match(classTest(cls)); + if (!found) return false; + var end = found.index + found[0].length; + line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; + } + return true; + }); + }), + + addLineWidget: docMethodOp(function (handle, node, options) { + return addLineWidget(this, handle, node, options); + }), + removeLineWidget: function (widget) { widget.clear(); }, + + markText: function (from, to, options) { + return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range"); + }, + setBookmark: function (pos, options) { + var realOpts = { + replacedWith: options && (options.nodeType == null ? options.widget : options), + insertLeft: options && options.insertLeft, + clearWhenEmpty: false, shared: options && options.shared, + handleMouseEvents: options && options.handleMouseEvents + }; + pos = clipPos(this, pos); + return markText(this, pos, pos, realOpts, "bookmark"); + }, + findMarksAt: function (pos) { + pos = clipPos(this, pos); + var markers = [], spans = getLine(this, pos.line).markedSpans; + if (spans) for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if ((span.from == null || span.from <= pos.ch) && + (span.to == null || span.to >= pos.ch)) + markers.push(span.marker.parent || span.marker); + } + return markers; + }, + findMarks: function (from, to, filter) { + from = clipPos(this, from); to = clipPos(this, to); + var found = [], lineNo = from.line; + this.iter(from.line, to.line + 1, function (line) { + var spans = line.markedSpans; + if (spans) for (var i = 0; i < spans.length; i++) { + var span = spans[i]; + if (!(span.to != null && lineNo == from.line && from.ch >= span.to || + span.from == null && lineNo != from.line || + span.from != null && lineNo == to.line && span.from >= to.ch) && + (!filter || filter(span.marker))) + found.push(span.marker.parent || span.marker); + } + ++lineNo; + }); + return found; + }, + getAllMarks: function () { + var markers = []; + this.iter(function (line) { + var sps = line.markedSpans; + if (sps) for (var i = 0; i < sps.length; ++i) + if (sps[i].from != null) markers.push(sps[i].marker); + }); + return markers; + }, + + posFromIndex: function (off) { + var ch, lineNo = this.first, sepSize = this.lineSeparator().length; + this.iter(function (line) { + var sz = line.text.length + sepSize; + if (sz > off) { ch = off; return true; } + off -= sz; + ++lineNo; + }); + return clipPos(this, Pos(lineNo, ch)); + }, + indexFromPos: function (coords) { + coords = clipPos(this, coords); + var index = coords.ch; + if (coords.line < this.first || coords.ch < 0) return 0; + var sepSize = this.lineSeparator().length; + this.iter(this.first, coords.line, function (line) { + index += line.text.length + sepSize; + }); + return index; + }, + + copy: function (copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), + this.modeOption, this.first, this.lineSep); + doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; + doc.sel = this.sel; + doc.extend = false; + if (copyHistory) { + doc.history.undoDepth = this.history.undoDepth; + doc.setHistory(this.getHistory()); + } + return doc; + }, + + linkedDoc: function (options) { + if (!options) options = {}; + var from = this.first, to = this.first + this.size; + if (options.from != null && options.from > from) from = options.from; + if (options.to != null && options.to < to) to = options.to; + var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep); + if (options.sharedHist) copy.history = this.history; + (this.linked || (this.linked = [])).push({ doc: copy, sharedHist: options.sharedHist }); + copy.linked = [{ doc: this, isParent: true, sharedHist: options.sharedHist }]; + copySharedMarkers(copy, findSharedMarkers(this)); + return copy; + }, + unlinkDoc: function (other) { + if (other instanceof CodeMirror) other = other.doc; + if (this.linked) for (var i = 0; i < this.linked.length; ++i) { + var link = this.linked[i]; + if (link.doc != other) continue; + this.linked.splice(i, 1); + other.unlinkDoc(this); + detachSharedMarkers(findSharedMarkers(this)); + break; + } + // If the histories were shared, split them again + if (other.history == this.history) { + var splitIds = [other.id]; + linkedDocs(other, function (doc) { splitIds.push(doc.id); }, true); + other.history = new History(null); + other.history.done = copyHistoryArray(this.history.done, splitIds); + other.history.undone = copyHistoryArray(this.history.undone, splitIds); + } + }, + iterLinkedDocs: function (f) { linkedDocs(this, f); }, + + getMode: function () { return this.mode; }, + getEditor: function () { return this.cm; }, + + splitLines: function (str) { + if (this.lineSep) return str.split(this.lineSep); + return splitLinesAuto(str); + }, + lineSeparator: function () { return this.lineSep || "\n"; } + }); + + // Public alias. + Doc.prototype.eachLine = Doc.prototype.iter; + + // Set up methods on CodeMirror's prototype to redirect to the editor's document. + var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); + for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) + CodeMirror.prototype[prop] = (function (method) { + return function () { return method.apply(this.doc, arguments); }; + })(Doc.prototype[prop]); + + eventMixin(Doc); + + // Call f for all linked documents. + function linkedDocs(doc, f, sharedHistOnly) { + function propagate(doc, skip, sharedHist) { + if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { + var rel = doc.linked[i]; + if (rel.doc == skip) continue; + var shared = sharedHist && rel.sharedHist; + if (sharedHistOnly && !shared) continue; + f(rel.doc, shared); + propagate(rel.doc, doc, shared); + } + } + propagate(doc, null, true); + } + + // Attach a document to an editor. + function attachDoc(cm, doc) { + if (doc.cm) throw new Error("This document is already in use."); + cm.doc = doc; + doc.cm = cm; + estimateLineHeights(cm); + loadMode(cm); + if (!cm.options.lineWrapping) findMaxLine(cm); + cm.options.mode = doc.modeOption; + regChange(cm); + } + + // LINE UTILITIES + + // Find the line object corresponding to the given line number. + function getLine(doc, n) { + n -= doc.first; + if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document."); + for (var chunk = doc; !chunk.lines;) { + for (var i = 0; ; ++i) { + var child = chunk.children[i], sz = child.chunkSize(); + if (n < sz) { chunk = child; break; } + n -= sz; + } + } + return chunk.lines[n]; + } + + // Get the part of a document between two positions, as an array of + // strings. + function getBetween(doc, start, end) { + var out = [], n = start.line; + doc.iter(start.line, end.line + 1, function (line) { + var text = line.text; + if (n == end.line) text = text.slice(0, end.ch); + if (n == start.line) text = text.slice(start.ch); + out.push(text); + ++n; + }); + return out; + } + // Get the lines between from and to, as array of strings. + function getLines(doc, from, to) { + var out = []; + doc.iter(from, to, function (line) { out.push(line.text); }); + return out; + } + + // Update the height of a line, propagating the height change + // upwards to parent nodes. + function updateLineHeight(line, height) { + var diff = height - line.height; + if (diff) for (var n = line; n; n = n.parent) n.height += diff; + } + + // Given a line object, find its line number by walking up through + // its parent links. + function lineNo(line) { + if (line.parent == null) return null; + var cur = line.parent, no = indexOf(cur.lines, line); + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { + for (var i = 0; ; ++i) { + if (chunk.children[i] == cur) break; + no += chunk.children[i].chunkSize(); + } + } + return no + cur.first; + } + + // Find the line at the given vertical position, using the height + // information in the document tree. + function lineAtHeight(chunk, h) { + var n = chunk.first; + outer: do { + for (var i = 0; i < chunk.children.length; ++i) { + var child = chunk.children[i], ch = child.height; + if (h < ch) { chunk = child; continue outer; } + h -= ch; + n += child.chunkSize(); + } + return n; + } while (!chunk.lines); + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height; + if (h < lh) break; + h -= lh; + } + return n + i; + } + + + // Find the height above the given line. + function heightAtLine(lineObj) { + lineObj = visualLine(lineObj); + + var h = 0, chunk = lineObj.parent; + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i]; + if (line == lineObj) break; + else h += line.height; + } + for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { + for (var i = 0; i < p.children.length; ++i) { + var cur = p.children[i]; + if (cur == chunk) break; + else h += cur.height; + } + } + return h; + } + + // Get the bidi ordering for the given line (and cache it). Returns + // false for lines that are fully left-to-right, and an array of + // BidiSpan objects otherwise. + function getOrder(line) { + var order = line.order; + if (order == null) order = line.order = bidiOrdering(line.text); + return order; + } + + // HISTORY + + function History(startGen) { + // Arrays of change events and selections. Doing something adds an + // event to done and clears undo. Undoing moves events from done + // to undone, redoing moves them in the other direction. + this.done = []; this.undone = []; + this.undoDepth = Infinity; + // Used to track when changes can be merged into a single undo + // event + this.lastModTime = this.lastSelTime = 0; + this.lastOp = this.lastSelOp = null; + this.lastOrigin = this.lastSelOrigin = null; + // Used by the isClean() method + this.generation = this.maxGeneration = startGen || 1; + } + + // Create a history change event from an updateDoc-style change + // object. + function historyChangeFromChange(doc, change) { + var histChange = { from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to) }; + attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); + linkedDocs(doc, function (doc) { attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); + return histChange; + } + + // Pop all selection events off the end of a history array. Stop at + // a change event. + function clearSelectionEvents(array) { + while (array.length) { + var last = lst(array); + if (last.ranges) array.pop(); + else break; + } + } + + // Find the top change event in the history. Pop off selection + // events that are in the way. + function lastChangeEvent(hist, force) { + if (force) { + clearSelectionEvents(hist.done); + return lst(hist.done); + } else if (hist.done.length && !lst(hist.done).ranges) { + return lst(hist.done); + } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { + hist.done.pop(); + return lst(hist.done); + } + } + + // Register a change in the history. Merges changes that are within + // a single operation, ore are close together with an origin that + // allows merging (starting with "+") into a single event. + function addChangeToHistory(doc, change, selAfter, opId) { + var hist = doc.history; + hist.undone.length = 0; + var time = +new Date, cur; + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + var last = lst(cur.changes); + if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { + // Optimized case for simple insertion -- don't want to add + // new changesets for every character typed + last.to = changeEnd(change); + } else { + // Add new sub-event + cur.changes.push(historyChangeFromChange(doc, change)); + } + } else { + // Can not be merged, start a new event. + var before = lst(hist.done); + if (!before || !before.ranges) + pushSelectionToHistory(doc.sel, hist.done); + cur = { + changes: [historyChangeFromChange(doc, change)], + generation: hist.generation + }; + hist.done.push(cur); + while (hist.done.length > hist.undoDepth) { + hist.done.shift(); + if (!hist.done[0].ranges) hist.done.shift(); + } + } + hist.done.push(selAfter); + hist.generation = ++hist.maxGeneration; + hist.lastModTime = hist.lastSelTime = time; + hist.lastOp = hist.lastSelOp = opId; + hist.lastOrigin = hist.lastSelOrigin = change.origin; + + if (!last) signal(doc, "historyAdded"); + } + + function selectionEventCanBeMerged(doc, origin, prev, sel) { + var ch = origin.charAt(0); + return ch == "*" || + ch == "+" && + prev.ranges.length == sel.ranges.length && + prev.somethingSelected() == sel.somethingSelected() && + new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500); + } + + // Called whenever the selection changes, sets the new selection as + // the pending selection in the history, and pushes the old pending + // selection into the 'done' array when it was significantly + // different (in number of selected ranges, emptiness, or time). + function addSelectionToHistory(doc, sel, opId, options) { + var hist = doc.history, origin = options && options.origin; + + // A new event is started when the previous origin does not match + // the current, or the origins don't allow matching. Origins + // starting with * are always merged, those starting with + are + // merged when similar and close together in time. + if (opId == hist.lastSelOp || + (origin && hist.lastSelOrigin == origin && + (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || + selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) + hist.done[hist.done.length - 1] = sel; + else + pushSelectionToHistory(sel, hist.done); + + hist.lastSelTime = +new Date; + hist.lastSelOrigin = origin; + hist.lastSelOp = opId; + if (options && options.clearRedo !== false) + clearSelectionEvents(hist.undone); + } + + function pushSelectionToHistory(sel, dest) { + var top = lst(dest); + if (!(top && top.ranges && top.equals(sel))) + dest.push(sel); + } + + // Used to store marked span information in the history. + function attachLocalSpans(doc, change, from, to) { + var existing = change["spans_" + doc.id], n = 0; + doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { + if (line.markedSpans) + (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; + ++n; + }); + } + + // When un/re-doing restores text containing marked spans, those + // that have been explicitly cleared should not be restored. + function removeClearedSpans(spans) { + if (!spans) return null; + for (var i = 0, out; i < spans.length; ++i) { + if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } + else if (out) out.push(spans[i]); + } + return !out ? spans : out.length ? out : null; + } + + // Retrieve and filter the old marked spans stored in a change event. + function getOldSpans(doc, change) { + var found = change["spans_" + doc.id]; + if (!found) return null; + for (var i = 0, nw = []; i < change.text.length; ++i) + nw.push(removeClearedSpans(found[i])); + return nw; + } + + // Used both to provide a JSON-safe object in .getHistory, and, when + // detaching a document, to split the history in two + function copyHistoryArray(events, newGroup, instantiateSel) { + for (var i = 0, copy = []; i < events.length; ++i) { + var event = events[i]; + if (event.ranges) { + copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); + continue; + } + var changes = event.changes, newChanges = []; + copy.push({ changes: newChanges }); + for (var j = 0; j < changes.length; ++j) { + var change = changes[j], m; + newChanges.push({ from: change.from, to: change.to, text: change.text }); + if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { + if (indexOf(newGroup, Number(m[1])) > -1) { + lst(newChanges)[prop] = change[prop]; + delete change[prop]; } } } } + return copy; + } - // TEXTMARKER SPANS + // Rebasing/resetting history to deal with externally-sourced changes - function MarkedSpan(marker, from, to) { - this.marker = marker; + function rebaseHistSelSingle(pos, from, to, diff) { + if (to < pos.line) { + pos.line += diff; + } else if (from < pos.line) { + pos.line = from; + pos.ch = 0; + } + } + + // Tries to rebase an array of history events given a change in the + // document. If the change touches the same lines as the event, the + // event, and everything 'behind' it, is discarded. If the change is + // before the event, the event's positions are updated. Uses a + // copy-on-write scheme for the positions, to avoid having to + // reallocate them all on every rebase, but also avoid problems with + // shared position objects being unsafely updated. + function rebaseHistArray(array, from, to, diff) { + for (var i = 0; i < array.length; ++i) { + var sub = array[i], ok = true; + if (sub.ranges) { + if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } + for (var j = 0; j < sub.ranges.length; j++) { + rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); + rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); + } + continue; + } + for (var j = 0; j < sub.changes.length; ++j) { + var cur = sub.changes[j]; + if (to < cur.from.line) { + cur.from = Pos(cur.from.line + diff, cur.from.ch); + cur.to = Pos(cur.to.line + diff, cur.to.ch); + } else if (from <= cur.to.line) { + ok = false; + break; + } + } + if (!ok) { + array.splice(0, i + 1); + i = 0; + } + } + } + + function rebaseHist(hist, change) { + var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; + rebaseHistArray(hist.done, from, to, diff); + rebaseHistArray(hist.undone, from, to, diff); + } + + // EVENT UTILITIES + + // Due to the fact that we still support jurassic IE versions, some + // compatibility wrappers are needed. + + var e_preventDefault = CodeMirror.e_preventDefault = function (e) { + if (e.preventDefault) e.preventDefault(); + else e.returnValue = false; + }; + var e_stopPropagation = CodeMirror.e_stopPropagation = function (e) { + if (e.stopPropagation) e.stopPropagation(); + else e.cancelBubble = true; + }; + function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; + } + var e_stop = CodeMirror.e_stop = function (e) { e_preventDefault(e); e_stopPropagation(e); }; + + function e_target(e) { return e.target || e.srcElement; } + function e_button(e) { + var b = e.which; + if (b == null) { + if (e.button & 1) b = 1; + else if (e.button & 2) b = 3; + else if (e.button & 4) b = 2; + } + if (mac && e.ctrlKey && b == 1) b = 3; + return b; + } + + // EVENT HANDLING + + // Lightweight event framework. on/off also work on DOM nodes, + // registering native DOM handlers. + + var on = CodeMirror.on = function (emitter, type, f) { + if (emitter.addEventListener) + emitter.addEventListener(type, f, false); + else if (emitter.attachEvent) + emitter.attachEvent("on" + type, f); + else { + var map = emitter._handlers || (emitter._handlers = {}); + var arr = map[type] || (map[type] = []); + arr.push(f); + } + }; + + var noHandlers = [] + function getHandlers(emitter, type, copy) { + var arr = emitter._handlers && emitter._handlers[type] + if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers + else return arr || noHandlers + } + + var off = CodeMirror.off = function (emitter, type, f) { + if (emitter.removeEventListener) + emitter.removeEventListener(type, f, false); + else if (emitter.detachEvent) + emitter.detachEvent("on" + type, f); + else { + var handlers = getHandlers(emitter, type, false) + for (var i = 0; i < handlers.length; ++i) + if (handlers[i] == f) { handlers.splice(i, 1); break; } + } + }; + + var signal = CodeMirror.signal = function (emitter, type /*, values...*/) { + var handlers = getHandlers(emitter, type, true) + if (!handlers.length) return; + var args = Array.prototype.slice.call(arguments, 2); + for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args); + }; + + var orphanDelayedCallbacks = null; + + // Often, we want to signal events at a point where we are in the + // middle of some work, but don't want the handler to start calling + // other methods on the editor, which might be in an inconsistent + // state or simply not expect any other events to happen. + // signalLater looks whether there are any handlers, and schedules + // them to be executed when the last operation ends, or, if no + // operation is active, when a timeout fires. + function signalLater(emitter, type /*, values...*/) { + var arr = getHandlers(emitter, type, false) + if (!arr.length) return; + var args = Array.prototype.slice.call(arguments, 2), list; + if (operationGroup) { + list = operationGroup.delayedCallbacks; + } else if (orphanDelayedCallbacks) { + list = orphanDelayedCallbacks; + } else { + list = orphanDelayedCallbacks = []; + setTimeout(fireOrphanDelayed, 0); + } + function bnd(f) { return function () { f.apply(null, args); }; }; + for (var i = 0; i < arr.length; ++i) + list.push(bnd(arr[i])); + } + + function fireOrphanDelayed() { + var delayed = orphanDelayedCallbacks; + orphanDelayedCallbacks = null; + for (var i = 0; i < delayed.length; ++i) delayed[i](); + } + + // The DOM events that CodeMirror handles can be overridden by + // registering a (non-DOM) handler on the editor for the event name, + // and preventDefault-ing the event in that handler. + function signalDOMEvent(cm, e, override) { + if (typeof e == "string") + e = { type: e, preventDefault: function () { this.defaultPrevented = true; } }; + signal(cm, override || e.type, cm, e); + return e_defaultPrevented(e) || e.codemirrorIgnore; + } + + function signalCursorActivity(cm) { + var arr = cm._handlers && cm._handlers.cursorActivity; + if (!arr) return; + var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); + for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1) + set.push(arr[i]); + } + + function hasHandler(emitter, type) { + return getHandlers(emitter, type).length > 0 + } + + // Add on and off methods to a constructor's prototype, to make + // registering events on such objects more convenient. + function eventMixin(ctor) { + ctor.prototype.on = function (type, f) { on(this, type, f); }; + ctor.prototype.off = function (type, f) { off(this, type, f); }; + } + + // MISC UTILITIES + + // Number of pixels added to scroller and sizer to hide scrollbar + var scrollerGap = 30; + + // Returned or thrown by various protocols to signal 'I'm not + // handling this'. + var Pass = CodeMirror.Pass = { toString: function () { return "CodeMirror.Pass"; } }; + + // Reused option objects for setSelection & friends + var sel_dontScroll = { scroll: false }, sel_mouse = { origin: "*mouse" }, sel_move = { origin: "+move" }; + + function Delayed() { this.id = null; } + Delayed.prototype.set = function (ms, f) { + clearTimeout(this.id); + this.id = setTimeout(f, ms); + }; + + // Counts the column offset in a string, taking tabs into account. + // Used mostly to find indentation. + var countColumn = CodeMirror.countColumn = function (string, end, tabSize, startIndex, startValue) { + if (end == null) { + end = string.search(/[^\s\u00a0]/); + if (end == -1) end = string.length; + } + for (var i = startIndex || 0, n = startValue || 0; ;) { + var nextTab = string.indexOf("\t", i); + if (nextTab < 0 || nextTab >= end) + return n + (end - i); + n += nextTab - i; + n += tabSize - (n % tabSize); + i = nextTab + 1; + } + }; + + // The inverse of countColumn -- find the offset that corresponds to + // a particular column. + var findColumn = CodeMirror.findColumn = function (string, goal, tabSize) { + for (var pos = 0, col = 0; ;) { + var nextTab = string.indexOf("\t", pos); + if (nextTab == -1) nextTab = string.length; + var skipped = nextTab - pos; + if (nextTab == string.length || col + skipped >= goal) + return pos + Math.min(skipped, goal - col); + col += nextTab - pos; + col += tabSize - (col % tabSize); + pos = nextTab + 1; + if (col >= goal) return pos; + } + } + + var spaceStrs = [""]; + function spaceStr(n) { + while (spaceStrs.length <= n) + spaceStrs.push(lst(spaceStrs) + " "); + return spaceStrs[n]; + } + + function lst(arr) { return arr[arr.length - 1]; } + + var selectInput = function (node) { node.select(); }; + if (ios) // Mobile Safari apparently has a bug where select() is broken. + selectInput = function (node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; + else if (ie) // Suppress mysterious IE10 errors + selectInput = function (node) { try { node.select(); } catch (_e) { } }; + + function indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + if (array[i] == elt) return i; + return -1; + } + function map(array, f) { + var out = []; + for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); + return out; + } + + function nothing() { } + + function createObj(base, props) { + var inst; + if (Object.create) { + inst = Object.create(base); + } else { + nothing.prototype = base; + inst = new nothing(); + } + if (props) copyObj(props, inst); + return inst; + }; + + function copyObj(obj, target, overwrite) { + if (!target) target = {}; + for (var prop in obj) + if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) + target[prop] = obj[prop]; + return target; + } + + function bind(f) { + var args = Array.prototype.slice.call(arguments, 1); + return function () { return f.apply(null, args); }; + } + + var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; + var isWordCharBasic = CodeMirror.isWordChar = function (ch) { + return /\w/.test(ch) || ch > "\x80" && + (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); + }; + function isWordChar(ch, helper) { + if (!helper) return isWordCharBasic(ch); + if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true; + return helper.test(ch); + } + + function isEmpty(obj) { + for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; + return true; + } + + // Extending unicode characters. A series of a non-extending char + + // any number of extending chars is treated as a single unit as far + // as editing and measuring is concerned. This is not fully correct, + // since some scripts/fonts/browsers also treat other configurations + // of code points as a group. + var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; + function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); } + + // DOM UTILITIES + + function elt(tag, content, className, style) { + var e = document.createElement(tag); + if (className) e.className = className; + if (style) e.style.cssText = style; + if (typeof content == "string") e.appendChild(document.createTextNode(content)); + else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); + return e; + } + + var range; + if (document.createRange) range = function (node, start, end, endNode) { + var r = document.createRange(); + r.setEnd(endNode || node, end); + r.setStart(node, start); + return r; + }; + else range = function (node, start, end) { + var r = document.body.createTextRange(); + try { r.moveToElementText(node.parentNode); } + catch (e) { return r; } + r.collapse(true); + r.moveEnd("character", end); + r.moveStart("character", start); + return r; + }; + + function removeChildren(e) { + for (var count = e.childNodes.length; count > 0; --count) + e.removeChild(e.firstChild); + return e; + } + + function removeChildrenAndAdd(parent, e) { + return removeChildren(parent).appendChild(e); + } + + var contains = CodeMirror.contains = function (parent, child) { + if (child.nodeType == 3) // Android browser always returns false when child is a textnode + child = child.parentNode; + if (parent.contains) + return parent.contains(child); + do { + if (child.nodeType == 11) child = child.host; + if (child == parent) return true; + } while (child = child.parentNode); + }; + + function activeElt() { + var activeElement = document.activeElement; + while (activeElement && activeElement.root && activeElement.root.activeElement) + activeElement = activeElement.root.activeElement; + return activeElement; + } + // Older versions of IE throws unspecified error when touching + // document.activeElement in some cases (during loading, in iframe) + if (ie && ie_version < 11) activeElt = function () { + try { return document.activeElement; } + catch (e) { return document.body; } + }; + + function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); } + var rmClass = CodeMirror.rmClass = function (node, cls) { + var current = node.className; + var match = classTest(cls).exec(current); + if (match) { + var after = current.slice(match.index + match[0].length); + node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); + } + }; + var addClass = CodeMirror.addClass = function (node, cls) { + var current = node.className; + if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls; + }; + function joinClasses(a, b) { + var as = a.split(" "); + for (var i = 0; i < as.length; i++) + if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]; + return b; + } + + // WINDOW-WIDE EVENTS + + // These must be handled carefully, because naively registering a + // handler for each editor will cause the editors to never be + // garbage collected. + + function forEachCodeMirror(f) { + if (!document.body.getElementsByClassName) return; + var byClass = document.body.getElementsByClassName("CodeMirror"); + for (var i = 0; i < byClass.length; i++) { + var cm = byClass[i].CodeMirror; + if (cm) f(cm); + } + } + + var globalsRegistered = false; + function ensureGlobalHandlers() { + if (globalsRegistered) return; + registerGlobalHandlers(); + globalsRegistered = true; + } + function registerGlobalHandlers() { + // When the window resizes, we need to refresh active editors. + var resizeTimer; + on(window, "resize", function () { + if (resizeTimer == null) resizeTimer = setTimeout(function () { + resizeTimer = null; + forEachCodeMirror(onResize); + }, 100); + }); + // When the window loses focus, we want to show the editor as blurred + on(window, "blur", function () { + forEachCodeMirror(onBlur); + }); + } + + // FEATURE DETECTION + + // Detect drag-and-drop + var dragAndDrop = function () { + // There is *some* kind of drag-and-drop support in IE6-8, but I + // couldn't get it to work yet. + if (ie && ie_version < 9) return false; + var div = elt('div'); + return "draggable" in div || "dragDrop" in div; + }(); + + var zwspSupported; + function zeroWidthElement(measure) { + if (zwspSupported == null) { + var test = elt("span", "\u200b"); + removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); + if (measure.firstChild.offsetHeight != 0) + zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); + } + var node = zwspSupported ? elt("span", "\u200b") : + elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); + node.setAttribute("cm-text", ""); + return node; + } + + // Feature-detect IE's crummy client rect reporting for bidi text + var badBidiRects; + function hasBadBidiRects(measure) { + if (badBidiRects != null) return badBidiRects; + var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); + var r0 = range(txt, 0, 1).getBoundingClientRect(); + var r1 = range(txt, 1, 2).getBoundingClientRect(); + removeChildren(measure); + if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780) + return badBidiRects = (r1.right - r0.right < 3); + } + + // See if "".split is the broken IE version, if so, provide an + // alternative way to split lines. + var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function (string) { + var pos = 0, result = [], l = string.length; + while (pos <= l) { + var nl = string.indexOf("\n", pos); + if (nl == -1) nl = string.length; + var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); + var rt = line.indexOf("\r"); + if (rt != -1) { + result.push(line.slice(0, rt)); + pos += rt + 1; + } else { + result.push(line); + pos = nl + 1; + } + } + return result; + } : function (string) { return string.split(/\r\n?|\n/); }; + + var hasSelection = window.getSelection ? function (te) { + try { return te.selectionStart != te.selectionEnd; } + catch (e) { return false; } + } : function (te) { + try { var range = te.ownerDocument.selection.createRange(); } + catch (e) { } + if (!range || range.parentElement() != te) return false; + return range.compareEndPoints("StartToEnd", range) != 0; + }; + + var hasCopyEvent = (function () { + var e = elt("div"); + if ("oncopy" in e) return true; + e.setAttribute("oncopy", "return;"); + return typeof e.oncopy == "function"; + })(); + + var badZoomedRects = null; + function hasBadZoomedRects(measure) { + if (badZoomedRects != null) return badZoomedRects; + var node = removeChildrenAndAdd(measure, elt("span", "x")); + var normal = node.getBoundingClientRect(); + var fromRange = range(node, 0, 1).getBoundingClientRect(); + return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1; + } + + // KEY NAMES + + var keyNames = CodeMirror.keyNames = { + 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", + 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", + 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", + 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", + 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" + }; + (function () { + // Number keys + for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i); + // Alphabetic keys + for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); + // Function keys + for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; + })(); + + // BIDI HELPERS + + function iterateBidiSections(order, from, to, f) { + if (!order) return f(from, to, "ltr"); + var found = false; + for (var i = 0; i < order.length; ++i) { + var part = order[i]; + if (part.from < to && part.to > from || from == to && part.to == from) { + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); + found = true; + } + } + if (!found) f(from, to, "ltr"); + } + + function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } + function bidiRight(part) { return part.level % 2 ? part.from : part.to; } + + function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } + function lineRight(line) { + var order = getOrder(line); + if (!order) return line.text.length; + return bidiRight(lst(order)); + } + + function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLine(line); + if (visual != line) lineN = lineNo(visual); + var order = getOrder(visual); + var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); + return Pos(lineN, ch); + } + function lineEnd(cm, lineN) { + var merged, line = getLine(cm.doc, lineN); + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line; + lineN = null; + } + var order = getOrder(line); + var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); + return Pos(lineN == null ? lineNo(line) : lineN, ch); + } + function lineStartSmart(cm, pos) { + var start = lineStart(cm, pos.line); + var line = getLine(cm.doc, start.line); + var order = getOrder(line); + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(0, line.text.search(/\S/)); + var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; + return Pos(start.line, inWS ? 0 : firstNonWS); + } + return start; + } + + function compareBidiLevel(order, a, b) { + var linedir = order[0].level; + if (a == linedir) return true; + if (b == linedir) return false; + return a < b; + } + var bidiOther; + function getBidiPartAt(order, pos) { + bidiOther = null; + for (var i = 0, found; i < order.length; ++i) { + var cur = order[i]; + if (cur.from < pos && cur.to > pos) return i; + if ((cur.from == pos || cur.to == pos)) { + if (found == null) { + found = i; + } else if (compareBidiLevel(order, cur.level, order[found].level)) { + if (cur.from != cur.to) bidiOther = found; + return i; + } else { + if (cur.from != cur.to) bidiOther = i; + return found; + } + } + } + return found; + } + + function moveInLine(line, pos, dir, byUnit) { + if (!byUnit) return pos + dir; + do pos += dir; + while (pos > 0 && isExtendingChar(line.text.charAt(pos))); + return pos; + } + + // This is needed in order to move 'visually' through bi-directional + // text -- i.e., pressing left should make the cursor go left, even + // when in RTL text. The tricky part is the 'jumps', where RTL and + // LTR text touch each other. This often requires the cursor offset + // to move more than one unit, in order to visually move one unit. + function moveVisually(line, start, dir, byUnit) { + var bidi = getOrder(line); + if (!bidi) return moveLogically(line, start, dir, byUnit); + var pos = getBidiPartAt(bidi, start), part = bidi[pos]; + var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); + + for (; ;) { + if (target > part.from && target < part.to) return target; + if (target == part.from || target == part.to) { + if (getBidiPartAt(bidi, target) == pos) return target; + part = bidi[pos += dir]; + return (dir > 0) == part.level % 2 ? part.to : part.from; + } else { + part = bidi[pos += dir]; + if (!part) return null; + if ((dir > 0) == part.level % 2) + target = moveInLine(line, part.to, -1, byUnit); + else + target = moveInLine(line, part.from, 1, byUnit); + } + } + } + + function moveLogically(line, start, dir, byUnit) { + var target = start + dir; + if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir; + return target < 0 || target > line.text.length ? null : target; + } + + // Bidirectional ordering algorithm + // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm + // that this (partially) implements. + + // One-char codes used for character types: + // L (L): Left-to-Right + // R (R): Right-to-Left + // r (AL): Right-to-Left Arabic + // 1 (EN): European Number + // + (ES): European Number Separator + // % (ET): European Number Terminator + // n (AN): Arabic Number + // , (CS): Common Number Separator + // m (NSM): Non-Spacing Mark + // b (BN): Boundary Neutral + // s (B): Paragraph Separator + // t (S): Segment Separator + // w (WS): Whitespace + // N (ON): Other Neutrals + + // Returns null if characters are ordered as they appear + // (left-to-right), or an array of sections ({from, to, level} + // objects) in the order in which they occur visually. + var bidiOrdering = (function () { + // Character types for codepoints 0 to 0xff + var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; + // Character types for codepoints 0x600 to 0x6ff + var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; + function charType(code) { + if (code <= 0xf7) return lowTypes.charAt(code); + else if (0x590 <= code && code <= 0x5f4) return "R"; + else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600); + else if (0x6ee <= code && code <= 0x8ac) return "r"; + else if (0x2000 <= code && code <= 0x200b) return "w"; + else if (code == 0x200c) return "b"; + else return "L"; + } + + var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; + // Browsers seem to always treat the boundaries of block elements as being L. + var outerType = "L"; + + function BidiSpan(level, from, to) { + this.level = level; this.from = from; this.to = to; } - // Search an array of spans for a span matching the given marker. - function getMarkedSpanFor(spans, marker) { - if (spans) for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if (span.marker == marker) return span; - } - } - // Remove a span from an array, returning undefined if no spans are - // left (we don't store arrays for lines without spans). - function removeMarkedSpan(spans, span) { - for (var r, i = 0; i < spans.length; ++i) - if (spans[i] != span) (r || (r = [])).push(spans[i]); - return r; - } - // Add a span to a line. - function addMarkedSpan(line, span) { - line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; - span.marker.attachLine(line); - } + return function (str) { + if (!bidiRE.test(str)) return false; + var len = str.length, types = []; + for (var i = 0, type; i < len; ++i) + types.push(type = charType(str.charCodeAt(i))); - // Used for the algorithm that adjusts markers for a change in the - // document. These functions cut an array of spans at a given - // character position, returning an array of remaining chunks (or - // undefined if nothing remains). - function markedSpansBefore(old, startCh, isInsert) { - if (old) for (var i = 0, nw; i < old.length; ++i) { - var span = old[i], marker = span.marker; - var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); - if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { - var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh); - (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); + // W1. Examine each non-spacing mark (NSM) in the level run, and + // change the type of the NSM to the type of the previous + // character. If the NSM is at the start of the level run, it will + // get the type of sor. + for (var i = 0, prev = outerType; i < len; ++i) { + var type = types[i]; + if (type == "m") types[i] = prev; + else prev = type; + } + + // W2. Search backwards from each instance of a European number + // until the first strong type (R, L, AL, or sor) is found. If an + // AL is found, change the type of the European number to Arabic + // number. + // W3. Change all ALs to R. + for (var i = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (type == "1" && cur == "r") types[i] = "n"; + else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } + } + + // W4. A single European separator between two European numbers + // changes to a European number. A single common separator between + // two numbers of the same type changes to that type. + for (var i = 1, prev = types[0]; i < len - 1; ++i) { + var type = types[i]; + if (type == "+" && prev == "1" && types[i + 1] == "1") types[i] = "1"; + else if (type == "," && prev == types[i + 1] && + (prev == "1" || prev == "n")) types[i] = prev; + prev = type; + } + + // W5. A sequence of European terminators adjacent to European + // numbers changes to all European numbers. + // W6. Otherwise, separators and terminators change to Other + // Neutral. + for (var i = 0; i < len; ++i) { + var type = types[i]; + if (type == ",") types[i] = "N"; + else if (type == "%") { + for (var end = i + 1; end < len && types[end] == "%"; ++end) { } + var replace = (i && types[i - 1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 1; } } - return nw; - } - function markedSpansAfter(old, endCh, isInsert) { - if (old) for (var i = 0, nw; i < old.length; ++i) { - var span = old[i], marker = span.marker; - var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); - if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { - var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh); - (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, - span.to == null ? null : span.to - endCh)); + + // W7. Search backwards from each instance of a European number + // until the first strong type (R, L, or sor) is found. If an L is + // found, then change the type of the European number to L. + for (var i = 0, cur = outerType; i < len; ++i) { + var type = types[i]; + if (cur == "L" && type == "1") types[i] = "L"; + else if (isStrong.test(type)) cur = type; + } + + // N1. A sequence of neutrals takes the direction of the + // surrounding strong text if the text on both sides has the same + // direction. European and Arabic numbers act as if they were R in + // terms of their influence on neutrals. Start-of-level-run (sor) + // and end-of-level-run (eor) are used at level run boundaries. + // N2. Any remaining neutrals take the embedding direction. + for (var i = 0; i < len; ++i) { + if (isNeutral.test(types[i])) { + for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) { } + var before = (i ? types[i - 1] : outerType) == "L"; + var after = (end < len ? types[end] : outerType) == "L"; + var replace = before || after ? "L" : "R"; + for (var j = i; j < end; ++j) types[j] = replace; + i = end - 1; } } - return nw; - } - // Given a change object, compute the new set of marker spans that - // cover the line in which the change took place. Removes spans - // entirely within the change, reconnects spans belonging to the - // same marker that appear on both sides of the change, and cuts off - // spans partially within the change. Returns an array of span - // arrays with one element for each line in (after) the change. - function stretchSpansOverChange(doc, change) { - if (change.full) return null; - var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; - var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; - if (!oldFirst && !oldLast) return null; - - var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; - // Get the spans that 'stick out' on both sides - var first = markedSpansBefore(oldFirst, startCh, isInsert); - var last = markedSpansAfter(oldLast, endCh, isInsert); - - // Next, merge those two ends - var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); - if (first) { - // Fix up .to properties of first - for (var i = 0; i < first.length; ++i) { - var span = first[i]; - if (span.to == null) { - var found = getMarkedSpanFor(last, span.marker); - if (!found) span.to = startCh; - else if (sameLine) span.to = found.to == null ? null : found.to + offset; - } - } - } - if (last) { - // Fix up .from in last (or move them into first in case of sameLine) - for (var i = 0; i < last.length; ++i) { - var span = last[i]; - if (span.to != null) span.to += offset; - if (span.from == null) { - var found = getMarkedSpanFor(first, span.marker); - if (!found) { - span.from = offset; - if (sameLine) (first || (first = [])).push(span); - } - } else { - span.from += offset; - if (sameLine) (first || (first = [])).push(span); - } - } - } - // Make sure we didn't create any zero-length spans - if (first) first = clearEmptySpans(first); - if (last && last != first) last = clearEmptySpans(last); - - var newMarkers = [first]; - if (!sameLine) { - // Fill gap with whole-line-spans - var gap = change.text.length - 2, gapMarkers; - if (gap > 0 && first) - for (var i = 0; i < first.length; ++i) - if (first[i].to == null) - (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null)); - for (var i = 0; i < gap; ++i) - newMarkers.push(gapMarkers); - newMarkers.push(last); - } - return newMarkers; - } - - // Remove spans that are empty and don't have a clearWhenEmpty - // option of false. - function clearEmptySpans(spans) { - for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) - spans.splice(i--, 1); - } - if (!spans.length) return null; - return spans; - } - - // Used for un/re-doing changes from the history. Combines the - // result of computing the existing spans with the set of spans that - // existed in the history (so that deleting around a span and then - // undoing brings back the span). - function mergeOldSpans(doc, change) { - var old = getOldSpans(doc, change); - var stretched = stretchSpansOverChange(doc, change); - if (!old) return stretched; - if (!stretched) return old; - - for (var i = 0; i < old.length; ++i) { - var oldCur = old[i], stretchCur = stretched[i]; - if (oldCur && stretchCur) { - spans: for (var j = 0; j < stretchCur.length; ++j) { - var span = stretchCur[j]; - for (var k = 0; k < oldCur.length; ++k) - if (oldCur[k].marker == span.marker) continue spans; - oldCur.push(span); - } - } else if (stretchCur) { - old[i] = stretchCur; - } - } - return old; - } - - // Used to 'clip' out readOnly ranges when making a change. - function removeReadOnlyRanges(doc, from, to) { - var markers = null; - doc.iter(from.line, to.line + 1, function (line) { - if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) { - var mark = line.markedSpans[i].marker; - if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) - (markers || (markers = [])).push(mark); - } - }); - if (!markers) return null; - var parts = [{ from: from, to: to }]; - for (var i = 0; i < markers.length; ++i) { - var mk = markers[i], m = mk.find(0); - for (var j = 0; j < parts.length; ++j) { - var p = parts[j]; - if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue; - var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); - if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) - newParts.push({ from: p.from, to: m.from }); - if (dto > 0 || !mk.inclusiveRight && !dto) - newParts.push({ from: m.to, to: p.to }); - parts.splice.apply(parts, newParts); - j += newParts.length - 1; - } - } - return parts; - } - - // Connect or disconnect spans from a line. - function detachMarkedSpans(line) { - var spans = line.markedSpans; - if (!spans) return; - for (var i = 0; i < spans.length; ++i) - spans[i].marker.detachLine(line); - line.markedSpans = null; - } - function attachMarkedSpans(line, spans) { - if (!spans) return; - for (var i = 0; i < spans.length; ++i) - spans[i].marker.attachLine(line); - line.markedSpans = spans; - } - - // Helpers used when computing which overlapping collapsed span - // counts as the larger one. - function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; } - function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; } - - // Returns a number indicating which of two overlapping collapsed - // spans is larger (and thus includes the other). Falls back to - // comparing ids when the spans cover exactly the same range. - function compareCollapsedMarkers(a, b) { - var lenDiff = a.lines.length - b.lines.length; - if (lenDiff != 0) return lenDiff; - var aPos = a.find(), bPos = b.find(); - var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); - if (fromCmp) return -fromCmp; - var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); - if (toCmp) return toCmp; - return b.id - a.id; - } - - // Find out whether a line ends or starts in a collapsed span. If - // so, return the marker for that span. - function collapsedSpanAtSide(line, start) { - var sps = sawCollapsedSpans && line.markedSpans, found; - if (sps) for (var sp, i = 0; i < sps.length; ++i) { - sp = sps[i]; - if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && - (!found || compareCollapsedMarkers(found, sp.marker) < 0)) - found = sp.marker; - } - return found; - } - function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); } - function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); } - - // Test whether there exists a collapsed span that partially - // overlaps (covers the start or end, but not both) of a new span. - // Such overlap is not allowed. - function conflictingCollapsedRange(doc, lineNo, from, to, marker) { - var line = getLine(doc, lineNo); - var sps = sawCollapsedSpans && line.markedSpans; - if (sps) for (var i = 0; i < sps.length; ++i) { - var sp = sps[i]; - if (!sp.marker.collapsed) continue; - var found = sp.marker.find(0); - var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); - var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); - if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue; - if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || - fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) - return true; - } - } - - // A visual line is a line as drawn on the screen. Folding, for - // example, can cause multiple logical lines to appear on the same - // visual line. This finds the start of the visual line that the - // given line is part of (usually that is the line itself). - function visualLine(line) { - var merged; - while (merged = collapsedSpanAtStart(line)) - line = merged.find(-1, true).line; - return line; - } - - // Returns an array of logical lines that continue the visual line - // started by the argument, or undefined if there are no such lines. - function visualLineContinued(line) { - var merged, lines; - while (merged = collapsedSpanAtEnd(line)) { - line = merged.find(1, true).line; - (lines || (lines = [])).push(line); - } - return lines; - } - - // Get the line number of the start of the visual line that the - // given line number is part of. - function visualLineNo(doc, lineN) { - var line = getLine(doc, lineN), vis = visualLine(line); - if (line == vis) return lineN; - return lineNo(vis); - } - // Get the line number of the start of the next visual line after - // the given line. - function visualLineEndNo(doc, lineN) { - if (lineN > doc.lastLine()) return lineN; - var line = getLine(doc, lineN), merged; - if (!lineIsHidden(doc, line)) return lineN; - while (merged = collapsedSpanAtEnd(line)) - line = merged.find(1, true).line; - return lineNo(line) + 1; - } - - // Compute whether a line is hidden. Lines count as hidden when they - // are part of a visual line that starts with another line, or when - // they are entirely covered by collapsed, non-widget span. - function lineIsHidden(doc, line) { - var sps = sawCollapsedSpans && line.markedSpans; - if (sps) for (var sp, i = 0; i < sps.length; ++i) { - sp = sps[i]; - if (!sp.marker.collapsed) continue; - if (sp.from == null) return true; - if (sp.marker.widgetNode) continue; - if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) - return true; - } - } - function lineIsHiddenInner(doc, line, span) { - if (span.to == null) { - var end = span.marker.find(1, true); - return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)); - } - if (span.marker.inclusiveRight && span.to == line.text.length) - return true; - for (var sp, i = 0; i < line.markedSpans.length; ++i) { - sp = line.markedSpans[i]; - if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && - (sp.to == null || sp.to != span.from) && - (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && - lineIsHiddenInner(doc, line, sp)) return true; - } - } - - // LINE WIDGETS - - // Line widgets are block elements displayed above or below a line. - - var LineWidget = CodeMirror.LineWidget = function (doc, node, options) { - if (options) for (var opt in options) if (options.hasOwnProperty(opt)) - this[opt] = options[opt]; - this.doc = doc; - this.node = node; - }; - eventMixin(LineWidget); - - function adjustScrollWhenAboveVisible(cm, line, diff) { - if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) - addToScrollPos(cm, null, diff); - } - - LineWidget.prototype.clear = function () { - var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); - if (no == null || !ws) return; - for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1); - if (!ws.length) line.widgets = null; - var height = widgetHeight(this); - updateLineHeight(line, Math.max(0, line.height - height)); - if (cm) runInOp(cm, function () { - adjustScrollWhenAboveVisible(cm, line, -height); - regLineChange(cm, no, "widget"); - }); - }; - LineWidget.prototype.changed = function () { - var oldH = this.height, cm = this.doc.cm, line = this.line; - this.height = null; - var diff = widgetHeight(this) - oldH; - if (!diff) return; - updateLineHeight(line, line.height + diff); - if (cm) runInOp(cm, function () { - cm.curOp.forceUpdate = true; - adjustScrollWhenAboveVisible(cm, line, diff); - }); - }; - - function widgetHeight(widget) { - if (widget.height != null) return widget.height; - var cm = widget.doc.cm; - if (!cm) return 0; - if (!contains(document.body, widget.node)) { - var parentStyle = "position: relative;"; - if (widget.coverGutter) - parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; - if (widget.noHScroll) - parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; - removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); - } - return widget.height = widget.node.parentNode.offsetHeight; - } - - function addLineWidget(doc, handle, node, options) { - var widget = new LineWidget(doc, node, options); - var cm = doc.cm; - if (cm && widget.noHScroll) cm.display.alignWidgets = true; - changeLine(doc, handle, "widget", function (line) { - var widgets = line.widgets || (line.widgets = []); - if (widget.insertAt == null) widgets.push(widget); - else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); - widget.line = line; - if (cm && !lineIsHidden(doc, line)) { - var aboveVisible = heightAtLine(line) < doc.scrollTop; - updateLineHeight(line, line.height + widgetHeight(widget)); - if (aboveVisible) addToScrollPos(cm, null, widget.height); - cm.curOp.forceUpdate = true; - } - return true; - }); - return widget; - } - - // LINE DATA STRUCTURE - - // Line objects. These hold state related to a line, including - // highlighting info (the styles array). - var Line = CodeMirror.Line = function (text, markedSpans, estimateHeight) { - this.text = text; - attachMarkedSpans(this, markedSpans); - this.height = estimateHeight ? estimateHeight(this) : 1; - }; - eventMixin(Line); - Line.prototype.lineNo = function () { return lineNo(this); }; - - // Change the content (text, markers) of a line. Automatically - // invalidates cached information and tries to re-estimate the - // line's height. - function updateLine(line, text, markedSpans, estimateHeight) { - line.text = text; - if (line.stateAfter) line.stateAfter = null; - if (line.styles) line.styles = null; - if (line.order != null) line.order = null; - detachMarkedSpans(line); - attachMarkedSpans(line, markedSpans); - var estHeight = estimateHeight ? estimateHeight(line) : 1; - if (estHeight != line.height) updateLineHeight(line, estHeight); - } - - // Detach a line from the document tree and its markers. - function cleanUpLine(line) { - line.parent = null; - detachMarkedSpans(line); - } - - function extractLineClasses(type, output) { - if (type) for (; ;) { - var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); - if (!lineClass) break; - type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); - var prop = lineClass[1] ? "bgClass" : "textClass"; - if (output[prop] == null) - output[prop] = lineClass[2]; - else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) - output[prop] += " " + lineClass[2]; - } - return type; - } - - function callBlankLine(mode, state) { - if (mode.blankLine) return mode.blankLine(state); - if (!mode.innerMode) return; - var inner = CodeMirror.innerMode(mode, state); - if (inner.mode.blankLine) return inner.mode.blankLine(inner.state); - } - - function readToken(mode, stream, state, inner) { - for (var i = 0; i < 10; i++) { - if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode; - var style = mode.token(stream, state); - if (stream.pos > stream.start) return style; - } - throw new Error("Mode " + mode.name + " failed to advance stream."); - } - - // Utility for getTokenAt and getLineTokens - function takeToken(cm, pos, precise, asArray) { - function getObj(copy) { - return { - start: stream.start, end: stream.pos, - string: stream.current(), - type: style || null, - state: copy ? copyState(doc.mode, state) : state - }; - } - - var doc = cm.doc, mode = doc.mode, style; - pos = clipPos(doc, pos); - var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise); - var stream = new StringStream(line.text, cm.options.tabSize), tokens; - if (asArray) tokens = []; - while ((asArray || stream.pos < pos.ch) && !stream.eol()) { - stream.start = stream.pos; - style = readToken(mode, stream, state); - if (asArray) tokens.push(getObj(true)); - } - return asArray ? tokens : getObj(); - } - - // Run the given mode's parser over a line, calling f for each token. - function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) { - var flattenSpans = mode.flattenSpans; - if (flattenSpans == null) flattenSpans = cm.options.flattenSpans; - var curStart = 0, curStyle = null; - var stream = new StringStream(text, cm.options.tabSize), style; - var inner = cm.options.addModeClass && [null]; - if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses); - while (!stream.eol()) { - if (stream.pos > cm.options.maxHighlightLength) { - flattenSpans = false; - if (forceToEnd) processLine(cm, text, state, stream.pos); - stream.pos = text.length; - style = null; - } else { - style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses); - } - if (inner) { - var mName = inner[0].name; - if (mName) style = "m-" + (style ? mName + " " + style : mName); - } - if (!flattenSpans || curStyle != style) { - while (curStart < stream.start) { - curStart = Math.min(stream.start, curStart + 50000); - f(curStart, curStyle); - } - curStyle = style; - } - stream.start = stream.pos; - } - while (curStart < stream.pos) { - // Webkit seems to refuse to render text nodes longer than 57444 characters - var pos = Math.min(stream.pos, curStart + 50000); - f(pos, curStyle); - curStart = pos; - } - } - - // Compute a style array (an array starting with a mode generation - // -- for invalidation -- followed by pairs of end positions and - // style strings), which is used to highlight the tokens on the - // line. - function highlightLine(cm, line, state, forceToEnd) { - // A styles array always starts with a number identifying the - // mode/overlays that it is based on (for easy invalidation). - var st = [cm.state.modeGen], lineClasses = {}; - // Compute the base array of styles - runMode(cm, line.text, cm.doc.mode, state, function (end, style) { - st.push(end, style); - }, lineClasses, forceToEnd); - - // Run overlays, adjust style array. - for (var o = 0; o < cm.state.overlays.length; ++o) { - var overlay = cm.state.overlays[o], i = 1, at = 0; - runMode(cm, line.text, overlay.mode, true, function (end, style) { + // Here we depart from the documented algorithm, in order to avoid + // building up an actual levels array. Since there are only three + // levels (0, 1, 2) in an implementation that doesn't take + // explicit embedding into account, we can build up the order on + // the fly, without following the level-based algorithm. + var order = [], m; + for (var i = 0; i < len;) { + if (countsAsLeft.test(types[i])) { var start = i; - // Ensure there's a token end at the current position, and that i points at it - while (at < end) { - var i_end = st[i]; - if (i_end > end) - st.splice(i, 1, end, st[i + 1], i_end); - i += 2; - at = Math.min(end, i_end); - } - if (!style) return; - if (overlay.opaque) { - st.splice(start, i - start, end, "cm-overlay " + style); - i = start + 2; - } else { - for (; start < i; start += 2) { - var cur = st[start + 1]; - st[start + 1] = (cur ? cur + " " : "") + "cm-overlay " + style; - } - } - }, lineClasses); - } - - return { styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null }; - } - - function getLineStyles(cm, line, updateFrontier) { - if (!line.styles || line.styles[0] != cm.state.modeGen) { - var state = getStateBefore(cm, lineNo(line)); - var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state); - line.stateAfter = state; - line.styles = result.styles; - if (result.classes) line.styleClasses = result.classes; - else if (line.styleClasses) line.styleClasses = null; - if (updateFrontier === cm.doc.frontier) cm.doc.frontier++; - } - return line.styles; - } - - // Lightweight form of highlight -- proceed over this line and - // update state, but don't save a style array. Used for lines that - // aren't currently visible. - function processLine(cm, text, state, startAt) { - var mode = cm.doc.mode; - var stream = new StringStream(text, cm.options.tabSize); - stream.start = stream.pos = startAt || 0; - if (text == "") callBlankLine(mode, state); - while (!stream.eol()) { - readToken(mode, stream, state); - stream.start = stream.pos; - } - } - - // Convert a style as returned by a mode (either null, or a string - // containing one or more styles) to a CSS style. This is cached, - // and also looks for line-wide styles. - var styleToClassCache = {}, styleToClassCacheWithMode = {}; - function interpretTokenStyle(style, options) { - if (!style || /^\s*$/.test(style)) return null; - var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; - return cache[style] || - (cache[style] = style.replace(/\S+/g, "cm-$&")); - } - - // Render the DOM representation of the text of a line. Also builds - // up a 'line map', which points at the DOM nodes that represent - // specific stretches of text, and is used by the measuring code. - // The returned object contains the DOM node, this map, and - // information about line-wide styles that were set by the mode. - function buildLineContent(cm, lineView) { - // The padding-right forces the element to have a 'border', which - // is needed on Webkit to be able to get line-level bounding - // rectangles for it (in measureChar). - var content = elt("span", null, null, webkit ? "padding-right: .1px" : null); - var builder = { - pre: elt("pre", [content], "CodeMirror-line"), content: content, - col: 0, pos: 0, cm: cm, - trailingSpace: false, - splitSpaces: (ie || webkit) && cm.getOption("lineWrapping") - }; - lineView.measure = {}; - - // Iterate over the logical lines that make up this visual line. - for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { - var line = i ? lineView.rest[i - 1] : lineView.line, order; - builder.pos = 0; - builder.addToken = buildToken; - // Optionally wire in some hacks into the token-rendering - // algorithm, to deal with browser quirks. - if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line))) - builder.addToken = buildTokenBadBidi(builder.addToken, order); - builder.map = []; - var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); - insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); - if (line.styleClasses) { - if (line.styleClasses.bgClass) - builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); - if (line.styleClasses.textClass) - builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); - } - - // Ensure at least a single node is present, for measuring. - if (builder.map.length == 0) - builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); - - // Store the map and a cache object for the current logical line - if (i == 0) { - lineView.measure.map = builder.map; - lineView.measure.cache = {}; + for (++i; i < len && countsAsLeft.test(types[i]); ++i) { } + order.push(new BidiSpan(0, start, i)); } else { - (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map); - (lineView.measure.caches || (lineView.measure.caches = [])).push({}); - } - } - - // See issue #2901 - if (webkit) { - var last = builder.content.lastChild - if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) - builder.content.className = "cm-tab-wrap-hack"; - } - - signal(cm, "renderLine", cm, lineView.line, builder.pre); - if (builder.pre.className) - builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); - - return builder; - } - - function defaultSpecialCharPlaceholder(ch) { - var token = elt("span", "\u2022", "cm-invalidchar"); - token.title = "\\u" + ch.charCodeAt(0).toString(16); - token.setAttribute("aria-label", token.title); - return token; - } - - // Build up the DOM representation for a single token, and add it to - // the line map. Takes care to render special characters separately. - function buildToken(builder, text, style, startStyle, endStyle, title, css) { - if (!text) return; - var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text - var special = builder.cm.state.specialChars, mustWrap = false; - if (!special.test(text)) { - builder.col += text.length; - var content = document.createTextNode(displayText); - builder.map.push(builder.pos, builder.pos + text.length, content); - if (ie && ie_version < 9) mustWrap = true; - builder.pos += text.length; - } else { - var content = document.createDocumentFragment(), pos = 0; - while (true) { - special.lastIndex = pos; - var m = special.exec(text); - var skipped = m ? m.index - pos : text.length - pos; - if (skipped) { - var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); - if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); - else content.appendChild(txt); - builder.map.push(builder.pos, builder.pos + skipped, txt); - builder.col += skipped; - builder.pos += skipped; + var pos = i, at = order.length; + for (++i; i < len && types[i] != "L"; ++i) { } + for (var j = pos; j < i;) { + if (countsAsNum.test(types[j])) { + if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); + var nstart = j; + for (++j; j < i && countsAsNum.test(types[j]); ++j) { } + order.splice(at, 0, new BidiSpan(2, nstart, j)); + pos = j; + } else ++j; } - if (!m) break; - pos += skipped + 1; - if (m[0] == "\t") { - var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; - var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); - txt.setAttribute("role", "presentation"); - txt.setAttribute("cm-text", "\t"); - builder.col += tabWidth; - } else if (m[0] == "\r" || m[0] == "\n") { - var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); - txt.setAttribute("cm-text", m[0]); - builder.col += 1; - } else { - var txt = builder.cm.options.specialCharPlaceholder(m[0]); - txt.setAttribute("cm-text", m[0]); - if (ie && ie_version < 9) content.appendChild(elt("span", [txt])); - else content.appendChild(txt); - builder.col += 1; - } - builder.map.push(builder.pos, builder.pos + 1, txt); - builder.pos++; + if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); } } - builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32 - if (style || startStyle || endStyle || mustWrap || css) { - var fullStyle = style || ""; - if (startStyle) fullStyle += startStyle; - if (endStyle) fullStyle += endStyle; - var token = elt("span", [content], fullStyle, css); - if (title) token.title = title; - return builder.content.appendChild(token); + if (order[0].level == 1 && (m = str.match(/^\s+/))) { + order[0].from = m[0].length; + order.unshift(new BidiSpan(0, 0, m[0].length)); } - builder.content.appendChild(content); - } - - function splitSpaces(text, trailingBefore) { - if (text.length > 1 && !/ /.test(text)) return text - var spaceBefore = trailingBefore, result = "" - for (var i = 0; i < text.length; i++) { - var ch = text.charAt(i) - if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) - ch = "\u00a0" - result += ch - spaceBefore = ch == " " + if (lst(order).level == 1 && (m = str.match(/\s+$/))) { + lst(order).to -= m[0].length; + order.push(new BidiSpan(0, len - m[0].length, len)); } - return result - } + if (order[0].level == 2) + order.unshift(new BidiSpan(1, order[0].to, order[0].to)); + if (order[0].level != lst(order).level) + order.push(new BidiSpan(order[0].level, len, len)); - // Work around nonsense dimensions being reported for stretches of - // right-to-left text. - function buildTokenBadBidi(inner, order) { - return function (builder, text, style, startStyle, endStyle, title, css) { - style = style ? style + " cm-force-border" : "cm-force-border"; - var start = builder.pos, end = start + text.length; - for (; ;) { - // Find the part that overlaps with the start of this text - for (var i = 0; i < order.length; i++) { - var part = order[i]; - if (part.to > start && part.from <= start) break; - } - if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css); - inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css); - startStyle = null; - text = text.slice(part.to - start); - start = part.to; - } - }; - } - - function buildCollapsedSpan(builder, size, marker, ignoreWidget) { - var widget = !ignoreWidget && marker.widgetNode; - if (widget) builder.map.push(builder.pos, builder.pos + size, widget); - if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { - if (!widget) - widget = builder.content.appendChild(document.createElement("span")); - widget.setAttribute("cm-marker", marker.id); - } - if (widget) { - builder.cm.display.input.setUneditable(widget); - builder.content.appendChild(widget); - } - builder.pos += size; - builder.trailingSpace = false - } - - // Outputs a number of spans to make up a line, taking highlighting - // and marked text into account. - function insertLineContent(line, builder, styles) { - var spans = line.markedSpans, allText = line.text, at = 0; - if (!spans) { - for (var i = 1; i < styles.length; i += 2) - builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i + 1], builder.cm.options)); - return; - } - - var len = allText.length, pos = 0, i = 1, text = "", style, css; - var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; - for (; ;) { - if (nextChange == pos) { // Update current marker set - spanStyle = spanEndStyle = spanStartStyle = title = css = ""; - collapsed = null; nextChange = Infinity; - var foundBookmarks = [], endStyles - for (var j = 0; j < spans.length; ++j) { - var sp = spans[j], m = sp.marker; - if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { - foundBookmarks.push(m); - } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { - if (sp.to != null && sp.to != pos && nextChange > sp.to) { - nextChange = sp.to; - spanEndStyle = ""; - } - if (m.className) spanStyle += " " + m.className; - if (m.css) css = (css ? css + ";" : "") + m.css; - if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle; - if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to) - if (m.title && !title) title = m.title; - if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) - collapsed = sp; - } else if (sp.from > pos && nextChange > sp.from) { - nextChange = sp.from; - } - } - if (endStyles) for (var j = 0; j < endStyles.length; j += 2) - if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j] - - if (!collapsed || collapsed.from == pos) for (var j = 0; j < foundBookmarks.length; ++j) - buildCollapsedSpan(builder, 0, foundBookmarks[j]); - if (collapsed && (collapsed.from || 0) == pos) { - buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, - collapsed.marker, collapsed.from == null); - if (collapsed.to == null) return; - if (collapsed.to == pos) collapsed = false; - } - } - if (pos >= len) break; - - var upto = Math.min(len, nextChange); - while (true) { - if (text) { - var end = pos + text.length; - if (!collapsed) { - var tokenText = end > upto ? text.slice(0, upto - pos) : text; - builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, - spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css); - } - if (end >= upto) { text = text.slice(upto - pos); pos = upto; break; } - pos = end; - spanStartStyle = ""; - } - text = allText.slice(at, at = styles[i++]); - style = interpretTokenStyle(styles[i++], builder.cm.options); - } - } - } - - // DOCUMENT DATA STRUCTURE - - // By default, updates that start and end at the beginning of a line - // are treated specially, in order to make the association of line - // widgets and marker elements with the text behave more intuitive. - function isWholeLineUpdate(doc, change) { - return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && - (!doc.cm || doc.cm.options.wholeLineUpdateBefore); - } - - // Perform a change on the document data structure. - function updateDoc(doc, change, markedSpans, estimateHeight) { - function spansFor(n) { return markedSpans ? markedSpans[n] : null; } - function update(line, text, spans) { - updateLine(line, text, spans, estimateHeight); - signalLater(line, "change", line, change); - } - function linesFor(start, end) { - for (var i = start, result = []; i < end; ++i) - result.push(new Line(text[i], spansFor(i), estimateHeight)); - return result; - } - - var from = change.from, to = change.to, text = change.text; - var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); - var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; - - // Adjust the line structure - if (change.full) { - doc.insert(0, linesFor(0, text.length)); - doc.remove(text.length, doc.size - text.length); - } else if (isWholeLineUpdate(doc, change)) { - // This is a whole-line replace. Treated specially to make - // sure line objects move the way they are supposed to. - var added = linesFor(0, text.length - 1); - update(lastLine, lastLine.text, lastSpans); - if (nlines) doc.remove(from.line, nlines); - if (added.length) doc.insert(from.line, added); - } else if (firstLine == lastLine) { - if (text.length == 1) { - update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); - } else { - var added = linesFor(1, text.length - 1); - added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); - update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); - doc.insert(from.line + 1, added); - } - } else if (text.length == 1) { - update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); - doc.remove(from.line + 1, nlines); - } else { - update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); - update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); - var added = linesFor(1, text.length - 1); - if (nlines > 1) doc.remove(from.line + 1, nlines - 1); - doc.insert(from.line + 1, added); - } - - signalLater(doc, "change", doc, change); - } - - // The document is represented as a BTree consisting of leaves, with - // chunk of lines in them, and branches, with up to ten leaves or - // other branch nodes below them. The top node is always a branch - // node, and is the document object itself (meaning it has - // additional methods and properties). - // - // All nodes have parent links. The tree is used both to go from - // line numbers to line objects, and to go from objects to numbers. - // It also indexes by height, and is used to convert between height - // and line object, and to find the total height of the document. - // - // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html - - function LeafChunk(lines) { - this.lines = lines; - this.parent = null; - for (var i = 0, height = 0; i < lines.length; ++i) { - lines[i].parent = this; - height += lines[i].height; - } - this.height = height; - } - - LeafChunk.prototype = { - chunkSize: function () { return this.lines.length; }, - // Remove the n lines at offset 'at'. - removeInner: function (at, n) { - for (var i = at, e = at + n; i < e; ++i) { - var line = this.lines[i]; - this.height -= line.height; - cleanUpLine(line); - signalLater(line, "delete"); - } - this.lines.splice(at, n); - }, - // Helper used to collapse a small branch into a single leaf. - collapse: function (lines) { - lines.push.apply(lines, this.lines); - }, - // Insert the given array of lines at offset 'at', count them as - // having the given height. - insertInner: function (at, lines, height) { - this.height += height; - this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); - for (var i = 0; i < lines.length; ++i) lines[i].parent = this; - }, - // Used to iterate over a part of the tree. - iterN: function (at, n, op) { - for (var e = at + n; at < e; ++at) - if (op(this.lines[at])) return true; - } - }; - - function BranchChunk(children) { - this.children = children; - var size = 0, height = 0; - for (var i = 0; i < children.length; ++i) { - var ch = children[i]; - size += ch.chunkSize(); height += ch.height; - ch.parent = this; - } - this.size = size; - this.height = height; - this.parent = null; - } - - BranchChunk.prototype = { - chunkSize: function () { return this.size; }, - removeInner: function (at, n) { - this.size -= n; - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at < sz) { - var rm = Math.min(n, sz - at), oldHeight = child.height; - child.removeInner(at, rm); - this.height -= oldHeight - child.height; - if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } - if ((n -= rm) == 0) break; - at = 0; - } else at -= sz; - } - // If the result is smaller than 25 lines, ensure that it is a - // single leaf node. - if (this.size - n < 25 && - (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { - var lines = []; - this.collapse(lines); - this.children = [new LeafChunk(lines)]; - this.children[0].parent = this; - } - }, - collapse: function (lines) { - for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines); - }, - insertInner: function (at, lines, height) { - this.size += lines.length; - this.height += height; - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at <= sz) { - child.insertInner(at, lines, height); - if (child.lines && child.lines.length > 50) { - // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. - // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. - var remaining = child.lines.length % 25 + 25 - for (var pos = remaining; pos < child.lines.length;) { - var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); - child.height -= leaf.height; - this.children.splice(++i, 0, leaf); - leaf.parent = this; - } - child.lines = child.lines.slice(0, remaining); - this.maybeSpill(); - } - break; - } - at -= sz; - } - }, - // When a node has grown, check whether it should be split. - maybeSpill: function () { - if (this.children.length <= 10) return; - var me = this; - do { - var spilled = me.children.splice(me.children.length - 5, 5); - var sibling = new BranchChunk(spilled); - if (!me.parent) { // Become the parent node - var copy = new BranchChunk(me.children); - copy.parent = me; - me.children = [copy, sibling]; - me = copy; - } else { - me.size -= sibling.size; - me.height -= sibling.height; - var myIndex = indexOf(me.parent.children, me); - me.parent.children.splice(myIndex + 1, 0, sibling); - } - sibling.parent = me.parent; - } while (me.children.length > 10); - me.parent.maybeSpill(); - }, - iterN: function (at, n, op) { - for (var i = 0; i < this.children.length; ++i) { - var child = this.children[i], sz = child.chunkSize(); - if (at < sz) { - var used = Math.min(n, sz - at); - if (child.iterN(at, used, op)) return true; - if ((n -= used) == 0) break; - at = 0; - } else at -= sz; - } - } - }; - - var nextDocId = 0; - var Doc = CodeMirror.Doc = function (text, mode, firstLine, lineSep) { - if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep); - if (firstLine == null) firstLine = 0; - - BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); - this.first = firstLine; - this.scrollTop = this.scrollLeft = 0; - this.cantEdit = false; - this.cleanGeneration = 1; - this.frontier = firstLine; - var start = Pos(firstLine, 0); - this.sel = simpleSelection(start); - this.history = new History(null); - this.id = ++nextDocId; - this.modeOption = mode; - this.lineSep = lineSep; - this.extend = false; - - if (typeof text == "string") text = this.splitLines(text); - updateDoc(this, { from: start, to: start, text: text }); - setSelection(this, simpleSelection(start), sel_dontScroll); - }; - - Doc.prototype = createObj(BranchChunk.prototype, { - constructor: Doc, - // Iterate over the document. Supports two forms -- with only one - // argument, it calls that for each line in the document. With - // three, it iterates over the range given by the first two (with - // the second being non-inclusive). - iter: function (from, to, op) { - if (op) this.iterN(from - this.first, to - from, op); - else this.iterN(this.first, this.first + this.size, from); - }, - - // Non-public interface for adding and removing lines. - insert: function (at, lines) { - var height = 0; - for (var i = 0; i < lines.length; ++i) height += lines[i].height; - this.insertInner(at - this.first, lines, height); - }, - remove: function (at, n) { this.removeInner(at - this.first, n); }, - - // From here, the methods are part of the public interface. Most - // are also available from CodeMirror (editor) instances. - - getValue: function (lineSep) { - var lines = getLines(this, this.first, this.first + this.size); - if (lineSep === false) return lines; - return lines.join(lineSep || this.lineSeparator()); - }, - setValue: docMethodOp(function (code) { - var top = Pos(this.first, 0), last = this.first + this.size - 1; - makeChange(this, { - from: top, to: Pos(last, getLine(this, last).text.length), - text: this.splitLines(code), origin: "setValue", full: true - }, true); - setSelection(this, simpleSelection(top)); - }), - replaceRange: function (code, from, to, origin) { - from = clipPos(this, from); - to = to ? clipPos(this, to) : from; - replaceRange(this, code, from, to, origin); - }, - getRange: function (from, to, lineSep) { - var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); - if (lineSep === false) return lines; - return lines.join(lineSep || this.lineSeparator()); - }, - - getLine: function (line) { var l = this.getLineHandle(line); return l && l.text; }, - - getLineHandle: function (line) { if (isLine(this, line)) return getLine(this, line); }, - getLineNumber: function (line) { return lineNo(line); }, - - getLineHandleVisualStart: function (line) { - if (typeof line == "number") line = getLine(this, line); - return visualLine(line); - }, - - lineCount: function () { return this.size; }, - firstLine: function () { return this.first; }, - lastLine: function () { return this.first + this.size - 1; }, - - clipPos: function (pos) { return clipPos(this, pos); }, - - getCursor: function (start) { - var range = this.sel.primary(), pos; - if (start == null || start == "head") pos = range.head; - else if (start == "anchor") pos = range.anchor; - else if (start == "end" || start == "to" || start === false) pos = range.to(); - else pos = range.from(); - return pos; - }, - listSelections: function () { return this.sel.ranges; }, - somethingSelected: function () { return this.sel.somethingSelected(); }, - - setCursor: docMethodOp(function (line, ch, options) { - setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); - }), - setSelection: docMethodOp(function (anchor, head, options) { - setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); - }), - extendSelection: docMethodOp(function (head, other, options) { - extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); - }), - extendSelections: docMethodOp(function (heads, options) { - extendSelections(this, clipPosArray(this, heads), options); - }), - extendSelectionsBy: docMethodOp(function (f, options) { - var heads = map(this.sel.ranges, f); - extendSelections(this, clipPosArray(this, heads), options); - }), - setSelections: docMethodOp(function (ranges, primary, options) { - if (!ranges.length) return; - for (var i = 0, out = []; i < ranges.length; i++) - out[i] = new Range(clipPos(this, ranges[i].anchor), - clipPos(this, ranges[i].head)); - if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex); - setSelection(this, normalizeSelection(out, primary), options); - }), - addSelection: docMethodOp(function (anchor, head, options) { - var ranges = this.sel.ranges.slice(0); - ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); - setSelection(this, normalizeSelection(ranges, ranges.length - 1), options); - }), - - getSelection: function (lineSep) { - var ranges = this.sel.ranges, lines; - for (var i = 0; i < ranges.length; i++) { - var sel = getBetween(this, ranges[i].from(), ranges[i].to()); - lines = lines ? lines.concat(sel) : sel; - } - if (lineSep === false) return lines; - else return lines.join(lineSep || this.lineSeparator()); - }, - getSelections: function (lineSep) { - var parts = [], ranges = this.sel.ranges; - for (var i = 0; i < ranges.length; i++) { - var sel = getBetween(this, ranges[i].from(), ranges[i].to()); - if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator()); - parts[i] = sel; - } - return parts; - }, - replaceSelection: function (code, collapse, origin) { - var dup = []; - for (var i = 0; i < this.sel.ranges.length; i++) - dup[i] = code; - this.replaceSelections(dup, collapse, origin || "+input"); - }, - replaceSelections: docMethodOp(function (code, collapse, origin) { - var changes = [], sel = this.sel; - for (var i = 0; i < sel.ranges.length; i++) { - var range = sel.ranges[i]; - changes[i] = { from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin }; - } - var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); - for (var i = changes.length - 1; i >= 0; i--) - makeChange(this, changes[i]); - if (newSel) setSelectionReplaceHistory(this, newSel); - else if (this.cm) ensureCursorVisible(this.cm); - }), - undo: docMethodOp(function () { makeChangeFromHistory(this, "undo"); }), - redo: docMethodOp(function () { makeChangeFromHistory(this, "redo"); }), - undoSelection: docMethodOp(function () { makeChangeFromHistory(this, "undo", true); }), - redoSelection: docMethodOp(function () { makeChangeFromHistory(this, "redo", true); }), - - setExtending: function (val) { this.extend = val; }, - getExtending: function () { return this.extend; }, - - historySize: function () { - var hist = this.history, done = 0, undone = 0; - for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done; - for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone; - return { undo: done, redo: undone }; - }, - clearHistory: function () { this.history = new History(this.history.maxGeneration); }, - - markClean: function () { - this.cleanGeneration = this.changeGeneration(true); - }, - changeGeneration: function (forceSplit) { - if (forceSplit) - this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; - return this.history.generation; - }, - isClean: function (gen) { - return this.history.generation == (gen || this.cleanGeneration); - }, - - getHistory: function () { - return { - done: copyHistoryArray(this.history.done), - undone: copyHistoryArray(this.history.undone) - }; - }, - setHistory: function (histData) { - var hist = this.history = new History(this.history.maxGeneration); - hist.done = copyHistoryArray(histData.done.slice(0), null, true); - hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); - }, - - addLineClass: docMethodOp(function (handle, where, cls) { - return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { - var prop = where == "text" ? "textClass" - : where == "background" ? "bgClass" - : where == "gutter" ? "gutterClass" : "wrapClass"; - if (!line[prop]) line[prop] = cls; - else if (classTest(cls).test(line[prop])) return false; - else line[prop] += " " + cls; - return true; - }); - }), - removeLineClass: docMethodOp(function (handle, where, cls) { - return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { - var prop = where == "text" ? "textClass" - : where == "background" ? "bgClass" - : where == "gutter" ? "gutterClass" : "wrapClass"; - var cur = line[prop]; - if (!cur) return false; - else if (cls == null) line[prop] = null; - else { - var found = cur.match(classTest(cls)); - if (!found) return false; - var end = found.index + found[0].length; - line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; - } - return true; - }); - }), - - addLineWidget: docMethodOp(function (handle, node, options) { - return addLineWidget(this, handle, node, options); - }), - removeLineWidget: function (widget) { widget.clear(); }, - - markText: function (from, to, options) { - return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range"); - }, - setBookmark: function (pos, options) { - var realOpts = { - replacedWith: options && (options.nodeType == null ? options.widget : options), - insertLeft: options && options.insertLeft, - clearWhenEmpty: false, shared: options && options.shared, - handleMouseEvents: options && options.handleMouseEvents - }; - pos = clipPos(this, pos); - return markText(this, pos, pos, realOpts, "bookmark"); - }, - findMarksAt: function (pos) { - pos = clipPos(this, pos); - var markers = [], spans = getLine(this, pos.line).markedSpans; - if (spans) for (var i = 0; i < spans.length; ++i) { - var span = spans[i]; - if ((span.from == null || span.from <= pos.ch) && - (span.to == null || span.to >= pos.ch)) - markers.push(span.marker.parent || span.marker); - } - return markers; - }, - findMarks: function (from, to, filter) { - from = clipPos(this, from); to = clipPos(this, to); - var found = [], lineNo = from.line; - this.iter(from.line, to.line + 1, function (line) { - var spans = line.markedSpans; - if (spans) for (var i = 0; i < spans.length; i++) { - var span = spans[i]; - if (!(span.to != null && lineNo == from.line && from.ch >= span.to || - span.from == null && lineNo != from.line || - span.from != null && lineNo == to.line && span.from >= to.ch) && - (!filter || filter(span.marker))) - found.push(span.marker.parent || span.marker); - } - ++lineNo; - }); - return found; - }, - getAllMarks: function () { - var markers = []; - this.iter(function (line) { - var sps = line.markedSpans; - if (sps) for (var i = 0; i < sps.length; ++i) - if (sps[i].from != null) markers.push(sps[i].marker); - }); - return markers; - }, - - posFromIndex: function (off) { - var ch, lineNo = this.first, sepSize = this.lineSeparator().length; - this.iter(function (line) { - var sz = line.text.length + sepSize; - if (sz > off) { ch = off; return true; } - off -= sz; - ++lineNo; - }); - return clipPos(this, Pos(lineNo, ch)); - }, - indexFromPos: function (coords) { - coords = clipPos(this, coords); - var index = coords.ch; - if (coords.line < this.first || coords.ch < 0) return 0; - var sepSize = this.lineSeparator().length; - this.iter(this.first, coords.line, function (line) { - index += line.text.length + sepSize; - }); - return index; - }, - - copy: function (copyHistory) { - var doc = new Doc(getLines(this, this.first, this.first + this.size), - this.modeOption, this.first, this.lineSep); - doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; - doc.sel = this.sel; - doc.extend = false; - if (copyHistory) { - doc.history.undoDepth = this.history.undoDepth; - doc.setHistory(this.getHistory()); - } - return doc; - }, - - linkedDoc: function (options) { - if (!options) options = {}; - var from = this.first, to = this.first + this.size; - if (options.from != null && options.from > from) from = options.from; - if (options.to != null && options.to < to) to = options.to; - var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep); - if (options.sharedHist) copy.history = this.history; - (this.linked || (this.linked = [])).push({ doc: copy, sharedHist: options.sharedHist }); - copy.linked = [{ doc: this, isParent: true, sharedHist: options.sharedHist }]; - copySharedMarkers(copy, findSharedMarkers(this)); - return copy; - }, - unlinkDoc: function (other) { - if (other instanceof CodeMirror) other = other.doc; - if (this.linked) for (var i = 0; i < this.linked.length; ++i) { - var link = this.linked[i]; - if (link.doc != other) continue; - this.linked.splice(i, 1); - other.unlinkDoc(this); - detachSharedMarkers(findSharedMarkers(this)); - break; - } - // If the histories were shared, split them again - if (other.history == this.history) { - var splitIds = [other.id]; - linkedDocs(other, function (doc) { splitIds.push(doc.id); }, true); - other.history = new History(null); - other.history.done = copyHistoryArray(this.history.done, splitIds); - other.history.undone = copyHistoryArray(this.history.undone, splitIds); - } - }, - iterLinkedDocs: function (f) { linkedDocs(this, f); }, - - getMode: function () { return this.mode; }, - getEditor: function () { return this.cm; }, - - splitLines: function (str) { - if (this.lineSep) return str.split(this.lineSep); - return splitLinesAuto(str); - }, - lineSeparator: function () { return this.lineSep || "\n"; } - }); - - // Public alias. - Doc.prototype.eachLine = Doc.prototype.iter; - - // Set up methods on CodeMirror's prototype to redirect to the editor's document. - var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); - for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) - CodeMirror.prototype[prop] = (function (method) { - return function () { return method.apply(this.doc, arguments); }; - })(Doc.prototype[prop]); - - eventMixin(Doc); - - // Call f for all linked documents. - function linkedDocs(doc, f, sharedHistOnly) { - function propagate(doc, skip, sharedHist) { - if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) { - var rel = doc.linked[i]; - if (rel.doc == skip) continue; - var shared = sharedHist && rel.sharedHist; - if (sharedHistOnly && !shared) continue; - f(rel.doc, shared); - propagate(rel.doc, doc, shared); - } - } - propagate(doc, null, true); - } - - // Attach a document to an editor. - function attachDoc(cm, doc) { - if (doc.cm) throw new Error("This document is already in use."); - cm.doc = doc; - doc.cm = cm; - estimateLineHeights(cm); - loadMode(cm); - if (!cm.options.lineWrapping) findMaxLine(cm); - cm.options.mode = doc.modeOption; - regChange(cm); - } - - // LINE UTILITIES - - // Find the line object corresponding to the given line number. - function getLine(doc, n) { - n -= doc.first; - if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document."); - for (var chunk = doc; !chunk.lines;) { - for (var i = 0; ; ++i) { - var child = chunk.children[i], sz = child.chunkSize(); - if (n < sz) { chunk = child; break; } - n -= sz; - } - } - return chunk.lines[n]; - } - - // Get the part of a document between two positions, as an array of - // strings. - function getBetween(doc, start, end) { - var out = [], n = start.line; - doc.iter(start.line, end.line + 1, function (line) { - var text = line.text; - if (n == end.line) text = text.slice(0, end.ch); - if (n == start.line) text = text.slice(start.ch); - out.push(text); - ++n; - }); - return out; - } - // Get the lines between from and to, as array of strings. - function getLines(doc, from, to) { - var out = []; - doc.iter(from, to, function (line) { out.push(line.text); }); - return out; - } - - // Update the height of a line, propagating the height change - // upwards to parent nodes. - function updateLineHeight(line, height) { - var diff = height - line.height; - if (diff) for (var n = line; n; n = n.parent) n.height += diff; - } - - // Given a line object, find its line number by walking up through - // its parent links. - function lineNo(line) { - if (line.parent == null) return null; - var cur = line.parent, no = indexOf(cur.lines, line); - for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { - for (var i = 0; ; ++i) { - if (chunk.children[i] == cur) break; - no += chunk.children[i].chunkSize(); - } - } - return no + cur.first; - } - - // Find the line at the given vertical position, using the height - // information in the document tree. - function lineAtHeight(chunk, h) { - var n = chunk.first; - outer: do { - for (var i = 0; i < chunk.children.length; ++i) { - var child = chunk.children[i], ch = child.height; - if (h < ch) { chunk = child; continue outer; } - h -= ch; - n += child.chunkSize(); - } - return n; - } while (!chunk.lines); - for (var i = 0; i < chunk.lines.length; ++i) { - var line = chunk.lines[i], lh = line.height; - if (h < lh) break; - h -= lh; - } - return n + i; - } - - - // Find the height above the given line. - function heightAtLine(lineObj) { - lineObj = visualLine(lineObj); - - var h = 0, chunk = lineObj.parent; - for (var i = 0; i < chunk.lines.length; ++i) { - var line = chunk.lines[i]; - if (line == lineObj) break; - else h += line.height; - } - for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { - for (var i = 0; i < p.children.length; ++i) { - var cur = p.children[i]; - if (cur == chunk) break; - else h += cur.height; - } - } - return h; - } - - // Get the bidi ordering for the given line (and cache it). Returns - // false for lines that are fully left-to-right, and an array of - // BidiSpan objects otherwise. - function getOrder(line) { - var order = line.order; - if (order == null) order = line.order = bidiOrdering(line.text); return order; - } + }; + })(); - // HISTORY + // THE END - function History(startGen) { - // Arrays of change events and selections. Doing something adds an - // event to done and clears undo. Undoing moves events from done - // to undone, redoing moves them in the other direction. - this.done = []; this.undone = []; - this.undoDepth = Infinity; - // Used to track when changes can be merged into a single undo - // event - this.lastModTime = this.lastSelTime = 0; - this.lastOp = this.lastSelOp = null; - this.lastOrigin = this.lastSelOrigin = null; - // Used by the isClean() method - this.generation = this.maxGeneration = startGen || 1; - } + CodeMirror.version = "5.17.0"; - // Create a history change event from an updateDoc-style change - // object. - function historyChangeFromChange(doc, change) { - var histChange = { from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to) }; - attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); - linkedDocs(doc, function (doc) { attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); - return histChange; - } + return CodeMirror; +})(); - // Pop all selection events off the end of a history array. Stop at - // a change event. - function clearSelectionEvents(array) { - while (array.length) { - var last = lst(array); - if (last.ranges) array.pop(); - else break; - } - } +// @ts-ignore +window.CodeMirror = CodeMirror; - // Find the top change event in the history. Pop off selection - // events that are in the way. - function lastChangeEvent(hist, force) { - if (force) { - clearSelectionEvents(hist.done); - return lst(hist.done); - } else if (hist.done.length && !lst(hist.done).ranges) { - return lst(hist.done); - } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { - hist.done.pop(); - return lst(hist.done); - } - } +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE - // Register a change in the history. Merges changes that are within - // a single operation, ore are close together with an origin that - // allows merging (starting with "+") into a single event. - function addChangeToHistory(doc, change, selAfter, opId) { - var hist = doc.history; - hist.undone.length = 0; - var time = +new Date, cur; +// TODO actually recognize syntax of TypeScript constructs - if ((hist.lastOp == opId || - hist.lastOrigin == change.origin && change.origin && - ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) || - change.origin.charAt(0) == "*")) && - (cur = lastChangeEvent(hist, hist.lastOp == opId))) { - // Merge this change into the last event - var last = lst(cur.changes); - if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { - // Optimized case for simple insertion -- don't want to add - // new changesets for every character typed - last.to = changeEnd(change); - } else { - // Add new sub-event - cur.changes.push(historyChangeFromChange(doc, change)); - } - } else { - // Can not be merged, start a new event. - var before = lst(hist.done); - if (!before || !before.ranges) - pushSelectionToHistory(doc.sel, hist.done); - cur = { - changes: [historyChangeFromChange(doc, change)], - generation: hist.generation +(function () { + "use strict"; + + function expressionAllowed(stream, state, backUp) { + return /^(?:operator|sof|keyword c|case|new|[\[{}\(,;:]|=>)$/.test(state.lastType) || + (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0)))) + } + + CodeMirror.defineMode("javascript", function (config, parserConfig) { + var indentUnit = config.indentUnit; + var statementIndent = parserConfig.statementIndent; + var jsonldMode = parserConfig.jsonld; + var jsonMode = parserConfig.json || jsonldMode; + var isTS = parserConfig.typescript; + var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/; + + // Tokenizer + + var keywords = function () { + function kw(type) { return { type: type, style: "keyword" }; } + var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"); + var operator = kw("operator"), atom = { type: "atom", style: "atom" }; + + var jsKeywords = { + "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B, + "return": C, "break": C, "continue": C, "new": kw("new"), "delete": C, "throw": C, "debugger": C, + "var": kw("var"), "const": kw("var"), "let": kw("var"), + "function": kw("function"), "catch": kw("catch"), + "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"), + "in": operator, "typeof": operator, "instanceof": operator, + "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom, + "this": kw("this"), "class": kw("class"), "super": kw("atom"), + "yield": C, "export": kw("export"), "import": kw("import"), "extends": C, + "await": C, "async": kw("async") + }; + + // Extend the 'normal' keywords with the TypeScript language extensions + if (isTS) { + var type = { type: "variable", style: "variable-3" }; + var tsKeywords = { + // object-like things + "interface": kw("class"), + "implements": C, + "namespace": C, + "module": kw("module"), + "enum": kw("module"), + + // scope modifiers + "public": kw("modifier"), + "private": kw("modifier"), + "protected": kw("modifier"), + "abstract": kw("modifier"), + + // operators + "as": operator, + + // types + "string": type, "number": type, "boolean": type, "any": type }; - hist.done.push(cur); - while (hist.done.length > hist.undoDepth) { - hist.done.shift(); - if (!hist.done[0].ranges) hist.done.shift(); + + for (var attr in tsKeywords) { + jsKeywords[attr] = tsKeywords[attr]; } } - hist.done.push(selAfter); - hist.generation = ++hist.maxGeneration; - hist.lastModTime = hist.lastSelTime = time; - hist.lastOp = hist.lastSelOp = opId; - hist.lastOrigin = hist.lastSelOrigin = change.origin; - if (!last) signal(doc, "historyAdded"); - } - - function selectionEventCanBeMerged(doc, origin, prev, sel) { - var ch = origin.charAt(0); - return ch == "*" || - ch == "+" && - prev.ranges.length == sel.ranges.length && - prev.somethingSelected() == sel.somethingSelected() && - new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500); - } - - // Called whenever the selection changes, sets the new selection as - // the pending selection in the history, and pushes the old pending - // selection into the 'done' array when it was significantly - // different (in number of selected ranges, emptiness, or time). - function addSelectionToHistory(doc, sel, opId, options) { - var hist = doc.history, origin = options && options.origin; - - // A new event is started when the previous origin does not match - // the current, or the origins don't allow matching. Origins - // starting with * are always merged, those starting with + are - // merged when similar and close together in time. - if (opId == hist.lastSelOp || - (origin && hist.lastSelOrigin == origin && - (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || - selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) - hist.done[hist.done.length - 1] = sel; - else - pushSelectionToHistory(sel, hist.done); - - hist.lastSelTime = +new Date; - hist.lastSelOrigin = origin; - hist.lastSelOp = opId; - if (options && options.clearRedo !== false) - clearSelectionEvents(hist.undone); - } - - function pushSelectionToHistory(sel, dest) { - var top = lst(dest); - if (!(top && top.ranges && top.equals(sel))) - dest.push(sel); - } - - // Used to store marked span information in the history. - function attachLocalSpans(doc, change, from, to) { - var existing = change["spans_" + doc.id], n = 0; - doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { - if (line.markedSpans) - (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; - ++n; - }); - } - - // When un/re-doing restores text containing marked spans, those - // that have been explicitly cleared should not be restored. - function removeClearedSpans(spans) { - if (!spans) return null; - for (var i = 0, out; i < spans.length; ++i) { - if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); } - else if (out) out.push(spans[i]); - } - return !out ? spans : out.length ? out : null; - } - - // Retrieve and filter the old marked spans stored in a change event. - function getOldSpans(doc, change) { - var found = change["spans_" + doc.id]; - if (!found) return null; - for (var i = 0, nw = []; i < change.text.length; ++i) - nw.push(removeClearedSpans(found[i])); - return nw; - } - - // Used both to provide a JSON-safe object in .getHistory, and, when - // detaching a document, to split the history in two - function copyHistoryArray(events, newGroup, instantiateSel) { - for (var i = 0, copy = []; i < events.length; ++i) { - var event = events[i]; - if (event.ranges) { - copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); - continue; - } - var changes = event.changes, newChanges = []; - copy.push({ changes: newChanges }); - for (var j = 0; j < changes.length; ++j) { - var change = changes[j], m; - newChanges.push({ from: change.from, to: change.to, text: change.text }); - if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) { - if (indexOf(newGroup, Number(m[1])) > -1) { - lst(newChanges)[prop] = change[prop]; - delete change[prop]; - } - } - } - } - return copy; - } - - // Rebasing/resetting history to deal with externally-sourced changes - - function rebaseHistSelSingle(pos, from, to, diff) { - if (to < pos.line) { - pos.line += diff; - } else if (from < pos.line) { - pos.line = from; - pos.ch = 0; - } - } - - // Tries to rebase an array of history events given a change in the - // document. If the change touches the same lines as the event, the - // event, and everything 'behind' it, is discarded. If the change is - // before the event, the event's positions are updated. Uses a - // copy-on-write scheme for the positions, to avoid having to - // reallocate them all on every rebase, but also avoid problems with - // shared position objects being unsafely updated. - function rebaseHistArray(array, from, to, diff) { - for (var i = 0; i < array.length; ++i) { - var sub = array[i], ok = true; - if (sub.ranges) { - if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } - for (var j = 0; j < sub.ranges.length; j++) { - rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); - rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); - } - continue; - } - for (var j = 0; j < sub.changes.length; ++j) { - var cur = sub.changes[j]; - if (to < cur.from.line) { - cur.from = Pos(cur.from.line + diff, cur.from.ch); - cur.to = Pos(cur.to.line + diff, cur.to.ch); - } else if (from <= cur.to.line) { - ok = false; - break; - } - } - if (!ok) { - array.splice(0, i + 1); - i = 0; - } - } - } - - function rebaseHist(hist, change) { - var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; - rebaseHistArray(hist.done, from, to, diff); - rebaseHistArray(hist.undone, from, to, diff); - } - - // EVENT UTILITIES - - // Due to the fact that we still support jurassic IE versions, some - // compatibility wrappers are needed. - - var e_preventDefault = CodeMirror.e_preventDefault = function (e) { - if (e.preventDefault) e.preventDefault(); - else e.returnValue = false; - }; - var e_stopPropagation = CodeMirror.e_stopPropagation = function (e) { - if (e.stopPropagation) e.stopPropagation(); - else e.cancelBubble = true; - }; - function e_defaultPrevented(e) { - return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false; - } - var e_stop = CodeMirror.e_stop = function (e) { e_preventDefault(e); e_stopPropagation(e); }; - - function e_target(e) { return e.target || e.srcElement; } - function e_button(e) { - var b = e.which; - if (b == null) { - if (e.button & 1) b = 1; - else if (e.button & 2) b = 3; - else if (e.button & 4) b = 2; - } - if (mac && e.ctrlKey && b == 1) b = 3; - return b; - } - - // EVENT HANDLING - - // Lightweight event framework. on/off also work on DOM nodes, - // registering native DOM handlers. - - var on = CodeMirror.on = function (emitter, type, f) { - if (emitter.addEventListener) - emitter.addEventListener(type, f, false); - else if (emitter.attachEvent) - emitter.attachEvent("on" + type, f); - else { - var map = emitter._handlers || (emitter._handlers = {}); - var arr = map[type] || (map[type] = []); - arr.push(f); - } - }; - - var noHandlers = [] - function getHandlers(emitter, type, copy) { - var arr = emitter._handlers && emitter._handlers[type] - if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers - else return arr || noHandlers - } - - var off = CodeMirror.off = function (emitter, type, f) { - if (emitter.removeEventListener) - emitter.removeEventListener(type, f, false); - else if (emitter.detachEvent) - emitter.detachEvent("on" + type, f); - else { - var handlers = getHandlers(emitter, type, false) - for (var i = 0; i < handlers.length; ++i) - if (handlers[i] == f) { handlers.splice(i, 1); break; } - } - }; - - var signal = CodeMirror.signal = function (emitter, type /*, values...*/) { - var handlers = getHandlers(emitter, type, true) - if (!handlers.length) return; - var args = Array.prototype.slice.call(arguments, 2); - for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args); - }; - - var orphanDelayedCallbacks = null; - - // Often, we want to signal events at a point where we are in the - // middle of some work, but don't want the handler to start calling - // other methods on the editor, which might be in an inconsistent - // state or simply not expect any other events to happen. - // signalLater looks whether there are any handlers, and schedules - // them to be executed when the last operation ends, or, if no - // operation is active, when a timeout fires. - function signalLater(emitter, type /*, values...*/) { - var arr = getHandlers(emitter, type, false) - if (!arr.length) return; - var args = Array.prototype.slice.call(arguments, 2), list; - if (operationGroup) { - list = operationGroup.delayedCallbacks; - } else if (orphanDelayedCallbacks) { - list = orphanDelayedCallbacks; - } else { - list = orphanDelayedCallbacks = []; - setTimeout(fireOrphanDelayed, 0); - } - function bnd(f) { return function () { f.apply(null, args); }; }; - for (var i = 0; i < arr.length; ++i) - list.push(bnd(arr[i])); - } - - function fireOrphanDelayed() { - var delayed = orphanDelayedCallbacks; - orphanDelayedCallbacks = null; - for (var i = 0; i < delayed.length; ++i) delayed[i](); - } - - // The DOM events that CodeMirror handles can be overridden by - // registering a (non-DOM) handler on the editor for the event name, - // and preventDefault-ing the event in that handler. - function signalDOMEvent(cm, e, override) { - if (typeof e == "string") - e = { type: e, preventDefault: function () { this.defaultPrevented = true; } }; - signal(cm, override || e.type, cm, e); - return e_defaultPrevented(e) || e.codemirrorIgnore; - } - - function signalCursorActivity(cm) { - var arr = cm._handlers && cm._handlers.cursorActivity; - if (!arr) return; - var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); - for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1) - set.push(arr[i]); - } - - function hasHandler(emitter, type) { - return getHandlers(emitter, type).length > 0 - } - - // Add on and off methods to a constructor's prototype, to make - // registering events on such objects more convenient. - function eventMixin(ctor) { - ctor.prototype.on = function (type, f) { on(this, type, f); }; - ctor.prototype.off = function (type, f) { off(this, type, f); }; - } - - // MISC UTILITIES - - // Number of pixels added to scroller and sizer to hide scrollbar - var scrollerGap = 30; - - // Returned or thrown by various protocols to signal 'I'm not - // handling this'. - var Pass = CodeMirror.Pass = { toString: function () { return "CodeMirror.Pass"; } }; - - // Reused option objects for setSelection & friends - var sel_dontScroll = { scroll: false }, sel_mouse = { origin: "*mouse" }, sel_move = { origin: "+move" }; - - function Delayed() { this.id = null; } - Delayed.prototype.set = function (ms, f) { - clearTimeout(this.id); - this.id = setTimeout(f, ms); - }; - - // Counts the column offset in a string, taking tabs into account. - // Used mostly to find indentation. - var countColumn = CodeMirror.countColumn = function (string, end, tabSize, startIndex, startValue) { - if (end == null) { - end = string.search(/[^\s\u00a0]/); - if (end == -1) end = string.length; - } - for (var i = startIndex || 0, n = startValue || 0; ;) { - var nextTab = string.indexOf("\t", i); - if (nextTab < 0 || nextTab >= end) - return n + (end - i); - n += nextTab - i; - n += tabSize - (n % tabSize); - i = nextTab + 1; - } - }; - - // The inverse of countColumn -- find the offset that corresponds to - // a particular column. - var findColumn = CodeMirror.findColumn = function (string, goal, tabSize) { - for (var pos = 0, col = 0; ;) { - var nextTab = string.indexOf("\t", pos); - if (nextTab == -1) nextTab = string.length; - var skipped = nextTab - pos; - if (nextTab == string.length || col + skipped >= goal) - return pos + Math.min(skipped, goal - col); - col += nextTab - pos; - col += tabSize - (col % tabSize); - pos = nextTab + 1; - if (col >= goal) return pos; - } - } - - var spaceStrs = [""]; - function spaceStr(n) { - while (spaceStrs.length <= n) - spaceStrs.push(lst(spaceStrs) + " "); - return spaceStrs[n]; - } - - function lst(arr) { return arr[arr.length - 1]; } - - var selectInput = function (node) { node.select(); }; - if (ios) // Mobile Safari apparently has a bug where select() is broken. - selectInput = function (node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; - else if (ie) // Suppress mysterious IE10 errors - selectInput = function (node) { try { node.select(); } catch (_e) { } }; - - function indexOf(array, elt) { - for (var i = 0; i < array.length; ++i) - if (array[i] == elt) return i; - return -1; - } - function map(array, f) { - var out = []; - for (var i = 0; i < array.length; i++) out[i] = f(array[i], i); - return out; - } - - function nothing() { } - - function createObj(base, props) { - var inst; - if (Object.create) { - inst = Object.create(base); - } else { - nothing.prototype = base; - inst = new nothing(); - } - if (props) copyObj(props, inst); - return inst; - }; - - function copyObj(obj, target, overwrite) { - if (!target) target = {}; - for (var prop in obj) - if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) - target[prop] = obj[prop]; - return target; - } - - function bind(f) { - var args = Array.prototype.slice.call(arguments, 1); - return function () { return f.apply(null, args); }; - } - - var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; - var isWordCharBasic = CodeMirror.isWordChar = function (ch) { - return /\w/.test(ch) || ch > "\x80" && - (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)); - }; - function isWordChar(ch, helper) { - if (!helper) return isWordCharBasic(ch); - if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true; - return helper.test(ch); - } - - function isEmpty(obj) { - for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false; - return true; - } - - // Extending unicode characters. A series of a non-extending char + - // any number of extending chars is treated as a single unit as far - // as editing and measuring is concerned. This is not fully correct, - // since some scripts/fonts/browsers also treat other configurations - // of code points as a group. - var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; - function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); } - - // DOM UTILITIES - - function elt(tag, content, className, style) { - var e = document.createElement(tag); - if (className) e.className = className; - if (style) e.style.cssText = style; - if (typeof content == "string") e.appendChild(document.createTextNode(content)); - else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); - return e; - } - - var range; - if (document.createRange) range = function (node, start, end, endNode) { - var r = document.createRange(); - r.setEnd(endNode || node, end); - r.setStart(node, start); - return r; - }; - else range = function (node, start, end) { - var r = document.body.createTextRange(); - try { r.moveToElementText(node.parentNode); } - catch (e) { return r; } - r.collapse(true); - r.moveEnd("character", end); - r.moveStart("character", start); - return r; - }; - - function removeChildren(e) { - for (var count = e.childNodes.length; count > 0; --count) - e.removeChild(e.firstChild); - return e; - } - - function removeChildrenAndAdd(parent, e) { - return removeChildren(parent).appendChild(e); - } - - var contains = CodeMirror.contains = function (parent, child) { - if (child.nodeType == 3) // Android browser always returns false when child is a textnode - child = child.parentNode; - if (parent.contains) - return parent.contains(child); - do { - if (child.nodeType == 11) child = child.host; - if (child == parent) return true; - } while (child = child.parentNode); - }; - - function activeElt() { - var activeElement = document.activeElement; - while (activeElement && activeElement.root && activeElement.root.activeElement) - activeElement = activeElement.root.activeElement; - return activeElement; - } - // Older versions of IE throws unspecified error when touching - // document.activeElement in some cases (during loading, in iframe) - if (ie && ie_version < 11) activeElt = function () { - try { return document.activeElement; } - catch (e) { return document.body; } - }; - - function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); } - var rmClass = CodeMirror.rmClass = function (node, cls) { - var current = node.className; - var match = classTest(cls).exec(current); - if (match) { - var after = current.slice(match.index + match[0].length); - node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); - } - }; - var addClass = CodeMirror.addClass = function (node, cls) { - var current = node.className; - if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls; - }; - function joinClasses(a, b) { - var as = a.split(" "); - for (var i = 0; i < as.length; i++) - if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]; - return b; - } - - // WINDOW-WIDE EVENTS - - // These must be handled carefully, because naively registering a - // handler for each editor will cause the editors to never be - // garbage collected. - - function forEachCodeMirror(f) { - if (!document.body.getElementsByClassName) return; - var byClass = document.body.getElementsByClassName("CodeMirror"); - for (var i = 0; i < byClass.length; i++) { - var cm = byClass[i].CodeMirror; - if (cm) f(cm); - } - } - - var globalsRegistered = false; - function ensureGlobalHandlers() { - if (globalsRegistered) return; - registerGlobalHandlers(); - globalsRegistered = true; - } - function registerGlobalHandlers() { - // When the window resizes, we need to refresh active editors. - var resizeTimer; - on(window, "resize", function () { - if (resizeTimer == null) resizeTimer = setTimeout(function () { - resizeTimer = null; - forEachCodeMirror(onResize); - }, 100); - }); - // When the window loses focus, we want to show the editor as blurred - on(window, "blur", function () { - forEachCodeMirror(onBlur); - }); - } - - // FEATURE DETECTION - - // Detect drag-and-drop - var dragAndDrop = function () { - // There is *some* kind of drag-and-drop support in IE6-8, but I - // couldn't get it to work yet. - if (ie && ie_version < 9) return false; - var div = elt('div'); - return "draggable" in div || "dragDrop" in div; + return jsKeywords; }(); - var zwspSupported; - function zeroWidthElement(measure) { - if (zwspSupported == null) { - var test = elt("span", "\u200b"); - removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); - if (measure.firstChild.offsetHeight != 0) - zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); - } - var node = zwspSupported ? elt("span", "\u200b") : - elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); - node.setAttribute("cm-text", ""); - return node; - } + var isOperatorChar = /[+\-*&%=<>!?|~^]/; + var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/; - // Feature-detect IE's crummy client rect reporting for bidi text - var badBidiRects; - function hasBadBidiRects(measure) { - if (badBidiRects != null) return badBidiRects; - var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); - var r0 = range(txt, 0, 1).getBoundingClientRect(); - var r1 = range(txt, 1, 2).getBoundingClientRect(); - removeChildren(measure); - if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780) - return badBidiRects = (r1.right - r0.right < 3); - } - - // See if "".split is the broken IE version, if so, provide an - // alternative way to split lines. - var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function (string) { - var pos = 0, result = [], l = string.length; - while (pos <= l) { - var nl = string.indexOf("\n", pos); - if (nl == -1) nl = string.length; - var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); - var rt = line.indexOf("\r"); - if (rt != -1) { - result.push(line.slice(0, rt)); - pos += rt + 1; - } else { - result.push(line); - pos = nl + 1; - } - } - return result; - } : function (string) { return string.split(/\r\n?|\n/); }; - - var hasSelection = window.getSelection ? function (te) { - try { return te.selectionStart != te.selectionEnd; } - catch (e) { return false; } - } : function (te) { - try { var range = te.ownerDocument.selection.createRange(); } - catch (e) { } - if (!range || range.parentElement() != te) return false; - return range.compareEndPoints("StartToEnd", range) != 0; - }; - - var hasCopyEvent = (function () { - var e = elt("div"); - if ("oncopy" in e) return true; - e.setAttribute("oncopy", "return;"); - return typeof e.oncopy == "function"; - })(); - - var badZoomedRects = null; - function hasBadZoomedRects(measure) { - if (badZoomedRects != null) return badZoomedRects; - var node = removeChildrenAndAdd(measure, elt("span", "x")); - var normal = node.getBoundingClientRect(); - var fromRange = range(node, 0, 1).getBoundingClientRect(); - return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1; - } - - // KEY NAMES - - var keyNames = CodeMirror.keyNames = { - 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", - 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", - 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", - 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", - 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", - 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", - 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", - 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" - }; - (function () { - // Number keys - for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i); - // Alphabetic keys - for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); - // Function keys - for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; - })(); - - // BIDI HELPERS - - function iterateBidiSections(order, from, to, f) { - if (!order) return f(from, to, "ltr"); - var found = false; - for (var i = 0; i < order.length; ++i) { - var part = order[i]; - if (part.from < to && part.to > from || from == to && part.to == from) { - f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr"); - found = true; - } - } - if (!found) f(from, to, "ltr"); - } - - function bidiLeft(part) { return part.level % 2 ? part.to : part.from; } - function bidiRight(part) { return part.level % 2 ? part.from : part.to; } - - function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; } - function lineRight(line) { - var order = getOrder(line); - if (!order) return line.text.length; - return bidiRight(lst(order)); - } - - function lineStart(cm, lineN) { - var line = getLine(cm.doc, lineN); - var visual = visualLine(line); - if (visual != line) lineN = lineNo(visual); - var order = getOrder(visual); - var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual); - return Pos(lineN, ch); - } - function lineEnd(cm, lineN) { - var merged, line = getLine(cm.doc, lineN); - while (merged = collapsedSpanAtEnd(line)) { - line = merged.find(1, true).line; - lineN = null; - } - var order = getOrder(line); - var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line); - return Pos(lineN == null ? lineNo(line) : lineN, ch); - } - function lineStartSmart(cm, pos) { - var start = lineStart(cm, pos.line); - var line = getLine(cm.doc, start.line); - var order = getOrder(line); - if (!order || order[0].level == 0) { - var firstNonWS = Math.max(0, line.text.search(/\S/)); - var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; - return Pos(start.line, inWS ? 0 : firstNonWS); - } - return start; - } - - function compareBidiLevel(order, a, b) { - var linedir = order[0].level; - if (a == linedir) return true; - if (b == linedir) return false; - return a < b; - } - var bidiOther; - function getBidiPartAt(order, pos) { - bidiOther = null; - for (var i = 0, found; i < order.length; ++i) { - var cur = order[i]; - if (cur.from < pos && cur.to > pos) return i; - if ((cur.from == pos || cur.to == pos)) { - if (found == null) { - found = i; - } else if (compareBidiLevel(order, cur.level, order[found].level)) { - if (cur.from != cur.to) bidiOther = found; - return i; - } else { - if (cur.from != cur.to) bidiOther = i; - return found; - } - } - } - return found; - } - - function moveInLine(line, pos, dir, byUnit) { - if (!byUnit) return pos + dir; - do pos += dir; - while (pos > 0 && isExtendingChar(line.text.charAt(pos))); - return pos; - } - - // This is needed in order to move 'visually' through bi-directional - // text -- i.e., pressing left should make the cursor go left, even - // when in RTL text. The tricky part is the 'jumps', where RTL and - // LTR text touch each other. This often requires the cursor offset - // to move more than one unit, in order to visually move one unit. - function moveVisually(line, start, dir, byUnit) { - var bidi = getOrder(line); - if (!bidi) return moveLogically(line, start, dir, byUnit); - var pos = getBidiPartAt(bidi, start), part = bidi[pos]; - var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); - - for (; ;) { - if (target > part.from && target < part.to) return target; - if (target == part.from || target == part.to) { - if (getBidiPartAt(bidi, target) == pos) return target; - part = bidi[pos += dir]; - return (dir > 0) == part.level % 2 ? part.to : part.from; - } else { - part = bidi[pos += dir]; - if (!part) return null; - if ((dir > 0) == part.level % 2) - target = moveInLine(line, part.to, -1, byUnit); - else - target = moveInLine(line, part.from, 1, byUnit); + function readRegexp(stream) { + var escaped = false, next, inSet = false; + while ((next = stream.next()) != null) { + if (!escaped) { + if (next == "/" && !inSet) return; + if (next == "[") inSet = true; + else if (inSet && next == "]") inSet = false; } + escaped = !escaped && next == "\\"; } } - function moveLogically(line, start, dir, byUnit) { - var target = start + dir; - if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir; - return target < 0 || target > line.text.length ? null : target; + // Used as scratch variables to communicate multiple values without + // consing up tons of objects. + var type, content; + function ret(tp, style, cont) { + type = tp; content = cont; + return style; } - - // Bidirectional ordering algorithm - // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm - // that this (partially) implements. - - // One-char codes used for character types: - // L (L): Left-to-Right - // R (R): Right-to-Left - // r (AL): Right-to-Left Arabic - // 1 (EN): European Number - // + (ES): European Number Separator - // % (ET): European Number Terminator - // n (AN): Arabic Number - // , (CS): Common Number Separator - // m (NSM): Non-Spacing Mark - // b (BN): Boundary Neutral - // s (B): Paragraph Separator - // t (S): Segment Separator - // w (WS): Whitespace - // N (ON): Other Neutrals - - // Returns null if characters are ordered as they appear - // (left-to-right), or an array of sections ({from, to, level} - // objects) in the order in which they occur visually. - var bidiOrdering = (function () { - // Character types for codepoints 0 to 0xff - var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; - // Character types for codepoints 0x600 to 0x6ff - var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm"; - function charType(code) { - if (code <= 0xf7) return lowTypes.charAt(code); - else if (0x590 <= code && code <= 0x5f4) return "R"; - else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600); - else if (0x6ee <= code && code <= 0x8ac) return "r"; - else if (0x2000 <= code && code <= 0x200b) return "w"; - else if (code == 0x200c) return "b"; - else return "L"; - } - - var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; - var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; - // Browsers seem to always treat the boundaries of block elements as being L. - var outerType = "L"; - - function BidiSpan(level, from, to) { - this.level = level; - this.from = from; this.to = to; - } - - return function (str) { - if (!bidiRE.test(str)) return false; - var len = str.length, types = []; - for (var i = 0, type; i < len; ++i) - types.push(type = charType(str.charCodeAt(i))); - - // W1. Examine each non-spacing mark (NSM) in the level run, and - // change the type of the NSM to the type of the previous - // character. If the NSM is at the start of the level run, it will - // get the type of sor. - for (var i = 0, prev = outerType; i < len; ++i) { - var type = types[i]; - if (type == "m") types[i] = prev; - else prev = type; - } - - // W2. Search backwards from each instance of a European number - // until the first strong type (R, L, AL, or sor) is found. If an - // AL is found, change the type of the European number to Arabic - // number. - // W3. Change all ALs to R. - for (var i = 0, cur = outerType; i < len; ++i) { - var type = types[i]; - if (type == "1" && cur == "r") types[i] = "n"; - else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; } - } - - // W4. A single European separator between two European numbers - // changes to a European number. A single common separator between - // two numbers of the same type changes to that type. - for (var i = 1, prev = types[0]; i < len - 1; ++i) { - var type = types[i]; - if (type == "+" && prev == "1" && types[i + 1] == "1") types[i] = "1"; - else if (type == "," && prev == types[i + 1] && - (prev == "1" || prev == "n")) types[i] = prev; - prev = type; - } - - // W5. A sequence of European terminators adjacent to European - // numbers changes to all European numbers. - // W6. Otherwise, separators and terminators change to Other - // Neutral. - for (var i = 0; i < len; ++i) { - var type = types[i]; - if (type == ",") types[i] = "N"; - else if (type == "%") { - for (var end = i + 1; end < len && types[end] == "%"; ++end) { } - var replace = (i && types[i - 1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; - for (var j = i; j < end; ++j) types[j] = replace; - i = end - 1; - } - } - - // W7. Search backwards from each instance of a European number - // until the first strong type (R, L, or sor) is found. If an L is - // found, then change the type of the European number to L. - for (var i = 0, cur = outerType; i < len; ++i) { - var type = types[i]; - if (cur == "L" && type == "1") types[i] = "L"; - else if (isStrong.test(type)) cur = type; - } - - // N1. A sequence of neutrals takes the direction of the - // surrounding strong text if the text on both sides has the same - // direction. European and Arabic numbers act as if they were R in - // terms of their influence on neutrals. Start-of-level-run (sor) - // and end-of-level-run (eor) are used at level run boundaries. - // N2. Any remaining neutrals take the embedding direction. - for (var i = 0; i < len; ++i) { - if (isNeutral.test(types[i])) { - for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) { } - var before = (i ? types[i - 1] : outerType) == "L"; - var after = (end < len ? types[end] : outerType) == "L"; - var replace = before || after ? "L" : "R"; - for (var j = i; j < end; ++j) types[j] = replace; - i = end - 1; - } - } - - // Here we depart from the documented algorithm, in order to avoid - // building up an actual levels array. Since there are only three - // levels (0, 1, 2) in an implementation that doesn't take - // explicit embedding into account, we can build up the order on - // the fly, without following the level-based algorithm. - var order = [], m; - for (var i = 0; i < len;) { - if (countsAsLeft.test(types[i])) { - var start = i; - for (++i; i < len && countsAsLeft.test(types[i]); ++i) { } - order.push(new BidiSpan(0, start, i)); - } else { - var pos = i, at = order.length; - for (++i; i < len && types[i] != "L"; ++i) { } - for (var j = pos; j < i;) { - if (countsAsNum.test(types[j])) { - if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j)); - var nstart = j; - for (++j; j < i && countsAsNum.test(types[j]); ++j) { } - order.splice(at, 0, new BidiSpan(2, nstart, j)); - pos = j; - } else ++j; - } - if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i)); - } - } - if (order[0].level == 1 && (m = str.match(/^\s+/))) { - order[0].from = m[0].length; - order.unshift(new BidiSpan(0, 0, m[0].length)); - } - if (lst(order).level == 1 && (m = str.match(/\s+$/))) { - lst(order).to -= m[0].length; - order.push(new BidiSpan(0, len - m[0].length, len)); - } - if (order[0].level == 2) - order.unshift(new BidiSpan(1, order[0].to, order[0].to)); - if (order[0].level != lst(order).level) - order.push(new BidiSpan(order[0].level, len, len)); - - return order; - }; - })(); - - // THE END - - CodeMirror.version = "5.17.0"; - - return CodeMirror; - }); - - - - // CodeMirror, copyright (c) by Marijn Haverbeke and others - // Distributed under an MIT license: http://codemirror.net/LICENSE - - // TODO actually recognize syntax of TypeScript constructs - - (function (mod) { - // Plain browser env - mod(CodeMirror); - })(function (CodeMirror) { - "use strict"; - - function expressionAllowed(stream, state, backUp) { - return /^(?:operator|sof|keyword c|case|new|[\[{}\(,;:]|=>)$/.test(state.lastType) || - (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0)))) - } - - CodeMirror.defineMode("javascript", function (config, parserConfig) { - var indentUnit = config.indentUnit; - var statementIndent = parserConfig.statementIndent; - var jsonldMode = parserConfig.jsonld; - var jsonMode = parserConfig.json || jsonldMode; - var isTS = parserConfig.typescript; - var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/; - - // Tokenizer - - var keywords = function () { - function kw(type) { return { type: type, style: "keyword" }; } - var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"); - var operator = kw("operator"), atom = { type: "atom", style: "atom" }; - - var jsKeywords = { - "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B, - "return": C, "break": C, "continue": C, "new": kw("new"), "delete": C, "throw": C, "debugger": C, - "var": kw("var"), "const": kw("var"), "let": kw("var"), - "function": kw("function"), "catch": kw("catch"), - "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"), - "in": operator, "typeof": operator, "instanceof": operator, - "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom, - "this": kw("this"), "class": kw("class"), "super": kw("atom"), - "yield": C, "export": kw("export"), "import": kw("import"), "extends": C, - "await": C, "async": kw("async") - }; - - // Extend the 'normal' keywords with the TypeScript language extensions - if (isTS) { - var type = { type: "variable", style: "variable-3" }; - var tsKeywords = { - // object-like things - "interface": kw("class"), - "implements": C, - "namespace": C, - "module": kw("module"), - "enum": kw("module"), - - // scope modifiers - "public": kw("modifier"), - "private": kw("modifier"), - "protected": kw("modifier"), - "abstract": kw("modifier"), - - // operators - "as": operator, - - // types - "string": type, "number": type, "boolean": type, "any": type - }; - - for (var attr in tsKeywords) { - jsKeywords[attr] = tsKeywords[attr]; - } - } - - return jsKeywords; - }(); - - var isOperatorChar = /[+\-*&%=<>!?|~^]/; - var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/; - - function readRegexp(stream) { - var escaped = false, next, inSet = false; - while ((next = stream.next()) != null) { - if (!escaped) { - if (next == "/" && !inSet) return; - if (next == "[") inSet = true; - else if (inSet && next == "]") inSet = false; - } - escaped = !escaped && next == "\\"; - } - } - - // Used as scratch variables to communicate multiple values without - // consing up tons of objects. - var type, content; - function ret(tp, style, cont) { - type = tp; content = cont; - return style; - } - function tokenBase(stream, state) { - var ch = stream.next(); - if (ch == '"' || ch == "'") { - state.tokenize = tokenString(ch); - return state.tokenize(stream, state); - } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) { - return ret("number", "number"); - } else if (ch == "." && stream.match("..")) { - return ret("spread", "meta"); - } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) { - return ret(ch); - } else if (ch == "=" && stream.eat(">")) { - return ret("=>", "operator"); - } else if (ch == "0" && stream.eat(/x/i)) { - stream.eatWhile(/[\da-f]/i); - return ret("number", "number"); - } else if (ch == "0" && stream.eat(/o/i)) { - stream.eatWhile(/[0-7]/i); - return ret("number", "number"); - } else if (ch == "0" && stream.eat(/b/i)) { - stream.eatWhile(/[01]/i); - return ret("number", "number"); - } else if (/\d/.test(ch)) { - stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/); - return ret("number", "number"); - } else if (ch == "/") { - if (stream.eat("*")) { - state.tokenize = tokenComment; - return tokenComment(stream, state); - } else if (stream.eat("/")) { - stream.skipToEnd(); - return ret("comment", "comment"); - } else if (expressionAllowed(stream, state, 1)) { - readRegexp(stream); - stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/); - return ret("regexp", "string-2"); - } else { - stream.eatWhile(isOperatorChar); - return ret("operator", "operator", stream.current()); - } - } else if (ch == "`") { - state.tokenize = tokenQuasi; - return tokenQuasi(stream, state); - } else if (ch == "#") { + function tokenBase(stream, state) { + var ch = stream.next(); + if (ch == '"' || ch == "'") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) { + return ret("number", "number"); + } else if (ch == "." && stream.match("..")) { + return ret("spread", "meta"); + } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) { + return ret(ch); + } else if (ch == "=" && stream.eat(">")) { + return ret("=>", "operator"); + } else if (ch == "0" && stream.eat(/x/i)) { + stream.eatWhile(/[\da-f]/i); + return ret("number", "number"); + } else if (ch == "0" && stream.eat(/o/i)) { + stream.eatWhile(/[0-7]/i); + return ret("number", "number"); + } else if (ch == "0" && stream.eat(/b/i)) { + stream.eatWhile(/[01]/i); + return ret("number", "number"); + } else if (/\d/.test(ch)) { + stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/); + return ret("number", "number"); + } else if (ch == "/") { + if (stream.eat("*")) { + state.tokenize = tokenComment; + return tokenComment(stream, state); + } else if (stream.eat("/")) { stream.skipToEnd(); - return ret("error", "error"); - } else if (isOperatorChar.test(ch)) { + return ret("comment", "comment"); + } else if (expressionAllowed(stream, state, 1)) { + readRegexp(stream); + stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/); + return ret("regexp", "string-2"); + } else { stream.eatWhile(isOperatorChar); return ret("operator", "operator", stream.current()); - } else if (wordRE.test(ch)) { - stream.eatWhile(wordRE); - var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word]; - return (known && state.lastType != ".") ? ret(known.type, known.style, word) : - ret("variable", "variable", word); } + } else if (ch == "`") { + state.tokenize = tokenQuasi; + return tokenQuasi(stream, state); + } else if (ch == "#") { + stream.skipToEnd(); + return ret("error", "error"); + } else if (isOperatorChar.test(ch)) { + stream.eatWhile(isOperatorChar); + return ret("operator", "operator", stream.current()); + } else if (wordRE.test(ch)) { + stream.eatWhile(wordRE); + var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word]; + return (known && state.lastType != ".") ? ret(known.type, known.style, word) : + ret("variable", "variable", word); } + } - function tokenString(quote) { - return function (stream, state) { - var escaped = false, next; - if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)) { - state.tokenize = tokenBase; - return ret("jsonld-keyword", "meta"); - } - while ((next = stream.next()) != null) { - if (next == quote && !escaped) break; - escaped = !escaped && next == "\\"; - } - if (!escaped) state.tokenize = tokenBase; - return ret("string", "string"); - }; - } - - function tokenComment(stream, state) { - var maybeEnd = false, ch; - while (ch = stream.next()) { - if (ch == "/" && maybeEnd) { - state.tokenize = tokenBase; - break; - } - maybeEnd = (ch == "*"); - } - return ret("comment", "comment"); - } - - function tokenQuasi(stream, state) { + function tokenString(quote) { + return function (stream, state) { var escaped = false, next; + if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)) { + state.tokenize = tokenBase; + return ret("jsonld-keyword", "meta"); + } while ((next = stream.next()) != null) { - if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) { - state.tokenize = tokenBase; - break; - } + if (next == quote && !escaped) break; escaped = !escaped && next == "\\"; } - return ret("quasi", "string-2", stream.current()); - } + if (!escaped) state.tokenize = tokenBase; + return ret("string", "string"); + }; + } - var brackets = "([{}])"; - // This is a crude lookahead trick to try and notice that we're - // parsing the argument patterns for a fat-arrow function before we - // actually hit the arrow token. It only works if the arrow is on - // the same line as the arguments and there's no strange noise - // (comments) in between. Fallback is to only notice when we hit the - // arrow, and not declare the arguments as locals for the arrow - // body. - function findFatArrow(stream, state) { - if (state.fatArrowAt) state.fatArrowAt = null; - var arrow = stream.string.indexOf("=>", stream.start); - if (arrow < 0) return; - - var depth = 0, sawSomething = false; - for (var pos = arrow - 1; pos >= 0; --pos) { - var ch = stream.string.charAt(pos); - var bracket = brackets.indexOf(ch); - if (bracket >= 0 && bracket < 3) { - if (!depth) { ++pos; break; } - if (--depth == 0) break; - } else if (bracket >= 3 && bracket < 6) { - ++depth; - } else if (wordRE.test(ch)) { - sawSomething = true; - } else if (/["'\/]/.test(ch)) { - return; - } else if (sawSomething && !depth) { - ++pos; - break; - } + function tokenComment(stream, state) { + var maybeEnd = false, ch; + while (ch = stream.next()) { + if (ch == "/" && maybeEnd) { + state.tokenize = tokenBase; + break; } - if (sawSomething && !depth) state.fatArrowAt = pos; + maybeEnd = (ch == "*"); } + return ret("comment", "comment"); + } - // Parser - - var atomicTypes = { "atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true }; - - function JSLexical(indented, column, type, align, prev, info) { - this.indented = indented; - this.column = column; - this.type = type; - this.prev = prev; - this.info = info; - if (align != null) this.align = align; + function tokenQuasi(stream, state) { + var escaped = false, next; + while ((next = stream.next()) != null) { + if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) { + state.tokenize = tokenBase; + break; + } + escaped = !escaped && next == "\\"; } + return ret("quasi", "string-2", stream.current()); + } - function inScope(state, varname) { - for (var v = state.localVars; v; v = v.next) + var brackets = "([{}])"; + // This is a crude lookahead trick to try and notice that we're + // parsing the argument patterns for a fat-arrow function before we + // actually hit the arrow token. It only works if the arrow is on + // the same line as the arguments and there's no strange noise + // (comments) in between. Fallback is to only notice when we hit the + // arrow, and not declare the arguments as locals for the arrow + // body. + function findFatArrow(stream, state) { + if (state.fatArrowAt) state.fatArrowAt = null; + var arrow = stream.string.indexOf("=>", stream.start); + if (arrow < 0) return; + + var depth = 0, sawSomething = false; + for (var pos = arrow - 1; pos >= 0; --pos) { + var ch = stream.string.charAt(pos); + var bracket = brackets.indexOf(ch); + if (bracket >= 0 && bracket < 3) { + if (!depth) { ++pos; break; } + if (--depth == 0) break; + } else if (bracket >= 3 && bracket < 6) { + ++depth; + } else if (wordRE.test(ch)) { + sawSomething = true; + } else if (/["'\/]/.test(ch)) { + return; + } else if (sawSomething && !depth) { + ++pos; + break; + } + } + if (sawSomething && !depth) state.fatArrowAt = pos; + } + + // Parser + + var atomicTypes = { "atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true }; + + function JSLexical(indented, column, type, align, prev, info) { + this.indented = indented; + this.column = column; + this.type = type; + this.prev = prev; + this.info = info; + if (align != null) this.align = align; + } + + function inScope(state, varname) { + for (var v = state.localVars; v; v = v.next) + if (v.name == varname) return true; + for (var cx = state.context; cx; cx = cx.prev) { + for (var v = cx.vars; v; v = v.next) if (v.name == varname) return true; - for (var cx = state.context; cx; cx = cx.prev) { - for (var v = cx.vars; v; v = v.next) - if (v.name == varname) return true; + } + } + + function parseJS(state, style, type, content, stream) { + var cc = state.cc; + // Communicate our context to the combinators. + // (Less wasteful than consing up a hundred closures on every call.) + cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style; + + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = true; + + while (true) { + var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement; + if (combinator(type, content)) { + while (cc.length && cc[cc.length - 1].lex) + cc.pop()(); + if (cx.marked) return cx.marked; + if (type == "variable" && inScope(state, content)) return "variable-2"; + return style; } } + } - function parseJS(state, style, type, content, stream) { - var cc = state.cc; - // Communicate our context to the combinators. - // (Less wasteful than consing up a hundred closures on every call.) - cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style; + // Combinator utils - if (!state.lexical.hasOwnProperty("align")) - state.lexical.align = true; + var cx = { state: null, column: null, marked: null, cc: null }; + function pass() { + for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]); + } + function cont() { + pass.apply(null, arguments); + return true; + } + function register(varname) { + function inList(list) { + for (var v = list; v; v = v.next) + if (v.name == varname) return true; + return false; + } + var state = cx.state; + cx.marked = "def"; + if (state.context) { + if (inList(state.localVars)) return; + state.localVars = { name: varname, next: state.localVars }; + } else { + if (inList(state.globalVars)) return; + if (parserConfig.globalVars) + state.globalVars = { name: varname, next: state.globalVars }; + } + } - while (true) { - var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement; - if (combinator(type, content)) { - while (cc.length && cc[cc.length - 1].lex) - cc.pop()(); - if (cx.marked) return cx.marked; - if (type == "variable" && inScope(state, content)) return "variable-2"; - return style; - } - } + // Combinators + + var defaultVars = { name: "this", next: { name: "arguments" } }; + function pushcontext() { + cx.state.context = { prev: cx.state.context, vars: cx.state.localVars }; + cx.state.localVars = defaultVars; + } + function popcontext() { + cx.state.localVars = cx.state.context.vars; + cx.state.context = cx.state.context.prev; + } + function pushlex(type, info) { + var result = function () { + var state = cx.state, indent = state.indented; + if (state.lexical.type == "stat") indent = state.lexical.indented; + else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev) + indent = outer.indented; + state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info); + }; + result.lex = true; + return result; + } + function poplex() { + var state = cx.state; + if (state.lexical.prev) { + if (state.lexical.type == ")") + state.indented = state.lexical.indented; + state.lexical = state.lexical.prev; + } + } + poplex.lex = true; + + function expect(wanted) { + function exp(type) { + if (type == wanted) return cont(); + else if (wanted == ";") return pass(); + else return cont(exp); + }; + return exp; + } + + function statement(type, value) { + if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex); + if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex); + if (type == "keyword b") return cont(pushlex("form"), statement, poplex); + if (type == "{") return cont(pushlex("}"), block, poplex); + if (type == ";") return cont(); + if (type == "if") { + if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex) + cx.state.cc.pop()(); + return cont(pushlex("form"), expression, statement, poplex, maybeelse); + } + if (type == "function") return cont(functiondef); + if (type == "for") return cont(pushlex("form"), forspec, statement, poplex); + if (type == "variable") return cont(pushlex("stat"), maybelabel); + if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"), + block, poplex, poplex); + if (type == "case") return cont(expression, expect(":")); + if (type == "default") return cont(expect(":")); + if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"), + statement, poplex, popcontext); + if (type == "class") return cont(pushlex("form"), className, poplex); + if (type == "export") return cont(pushlex("stat"), afterExport, poplex); + if (type == "import") return cont(pushlex("stat"), afterImport, poplex); + if (type == "module") return cont(pushlex("form"), pattern, pushlex("}"), expect("{"), block, poplex, poplex) + if (type == "async") return cont(statement) + return pass(pushlex("stat"), expression, expect(";"), poplex); + } + function expression(type) { + return expressionInner(type, false); + } + function expressionNoComma(type) { + return expressionInner(type, true); + } + function expressionInner(type, noComma) { + if (cx.state.fatArrowAt == cx.stream.start) { + var body = noComma ? arrowBodyNoComma : arrowBody; + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext); + else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext); } - // Combinator utils + var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma; + if (atomicTypes.hasOwnProperty(type)) return cont(maybeop); + if (type == "function") return cont(functiondef, maybeop); + if (type == "keyword c" || type == "async") return cont(noComma ? maybeexpressionNoComma : maybeexpression); + if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop); + if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression); + if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop); + if (type == "{") return contCommasep(objprop, "}", null, maybeop); + if (type == "quasi") return pass(quasi, maybeop); + if (type == "new") return cont(maybeTarget(noComma)); + return cont(); + } + function maybeexpression(type) { + if (type.match(/[;\}\)\],]/)) return pass(); + return pass(expression); + } + function maybeexpressionNoComma(type) { + if (type.match(/[;\}\)\],]/)) return pass(); + return pass(expressionNoComma); + } - var cx = { state: null, column: null, marked: null, cc: null }; - function pass() { - for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]); + function maybeoperatorComma(type, value) { + if (type == ",") return cont(expression); + return maybeoperatorNoComma(type, value, false); + } + function maybeoperatorNoComma(type, value, noComma) { + var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma; + var expr = noComma == false ? expression : expressionNoComma; + if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext); + if (type == "operator") { + if (/\+\+|--/.test(value)) return cont(me); + if (value == "?") return cont(expression, expect(":"), expr); + return cont(expr); } - function cont() { - pass.apply(null, arguments); - return true; + if (type == "quasi") { return pass(quasi, me); } + if (type == ";") return; + if (type == "(") return contCommasep(expressionNoComma, ")", "call", me); + if (type == ".") return cont(property, me); + if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me); + } + function quasi(type, value) { + if (type != "quasi") return pass(); + if (value.slice(value.length - 2) != "${") return cont(quasi); + return cont(expression, continueQuasi); + } + function continueQuasi(type) { + if (type == "}") { + cx.marked = "string-2"; + cx.state.tokenize = tokenQuasi; + return cont(quasi); } - function register(varname) { - function inList(list) { - for (var v = list; v; v = v.next) - if (v.name == varname) return true; - return false; - } - var state = cx.state; - cx.marked = "def"; - if (state.context) { - if (inList(state.localVars)) return; - state.localVars = { name: varname, next: state.localVars }; - } else { - if (inList(state.globalVars)) return; - if (parserConfig.globalVars) - state.globalVars = { name: varname, next: state.globalVars }; - } - } - - // Combinators - - var defaultVars = { name: "this", next: { name: "arguments" } }; - function pushcontext() { - cx.state.context = { prev: cx.state.context, vars: cx.state.localVars }; - cx.state.localVars = defaultVars; - } - function popcontext() { - cx.state.localVars = cx.state.context.vars; - cx.state.context = cx.state.context.prev; - } - function pushlex(type, info) { - var result = function () { - var state = cx.state, indent = state.indented; - if (state.lexical.type == "stat") indent = state.lexical.indented; - else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev) - indent = outer.indented; - state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info); - }; - result.lex = true; - return result; - } - function poplex() { - var state = cx.state; - if (state.lexical.prev) { - if (state.lexical.type == ")") - state.indented = state.lexical.indented; - state.lexical = state.lexical.prev; - } - } - poplex.lex = true; - - function expect(wanted) { - function exp(type) { - if (type == wanted) return cont(); - else if (wanted == ";") return pass(); - else return cont(exp); - }; - return exp; - } - - function statement(type, value) { - if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex); - if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex); - if (type == "keyword b") return cont(pushlex("form"), statement, poplex); - if (type == "{") return cont(pushlex("}"), block, poplex); - if (type == ";") return cont(); - if (type == "if") { - if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex) - cx.state.cc.pop()(); - return cont(pushlex("form"), expression, statement, poplex, maybeelse); - } - if (type == "function") return cont(functiondef); - if (type == "for") return cont(pushlex("form"), forspec, statement, poplex); - if (type == "variable") return cont(pushlex("stat"), maybelabel); - if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"), - block, poplex, poplex); - if (type == "case") return cont(expression, expect(":")); - if (type == "default") return cont(expect(":")); - if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"), - statement, poplex, popcontext); - if (type == "class") return cont(pushlex("form"), className, poplex); - if (type == "export") return cont(pushlex("stat"), afterExport, poplex); - if (type == "import") return cont(pushlex("stat"), afterImport, poplex); - if (type == "module") return cont(pushlex("form"), pattern, pushlex("}"), expect("{"), block, poplex, poplex) - if (type == "async") return cont(statement) - return pass(pushlex("stat"), expression, expect(";"), poplex); - } - function expression(type) { - return expressionInner(type, false); - } - function expressionNoComma(type) { - return expressionInner(type, true); - } - function expressionInner(type, noComma) { - if (cx.state.fatArrowAt == cx.stream.start) { - var body = noComma ? arrowBodyNoComma : arrowBody; - if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext); - else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext); - } - - var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma; - if (atomicTypes.hasOwnProperty(type)) return cont(maybeop); - if (type == "function") return cont(functiondef, maybeop); - if (type == "keyword c" || type == "async") return cont(noComma ? maybeexpressionNoComma : maybeexpression); - if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop); - if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression); - if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop); - if (type == "{") return contCommasep(objprop, "}", null, maybeop); - if (type == "quasi") return pass(quasi, maybeop); - if (type == "new") return cont(maybeTarget(noComma)); - return cont(); - } - function maybeexpression(type) { - if (type.match(/[;\}\)\],]/)) return pass(); - return pass(expression); - } - function maybeexpressionNoComma(type) { - if (type.match(/[;\}\)\],]/)) return pass(); - return pass(expressionNoComma); - } - - function maybeoperatorComma(type, value) { - if (type == ",") return cont(expression); - return maybeoperatorNoComma(type, value, false); - } - function maybeoperatorNoComma(type, value, noComma) { - var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma; - var expr = noComma == false ? expression : expressionNoComma; - if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext); - if (type == "operator") { - if (/\+\+|--/.test(value)) return cont(me); - if (value == "?") return cont(expression, expect(":"), expr); - return cont(expr); - } - if (type == "quasi") { return pass(quasi, me); } - if (type == ";") return; - if (type == "(") return contCommasep(expressionNoComma, ")", "call", me); - if (type == ".") return cont(property, me); - if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me); - } - function quasi(type, value) { - if (type != "quasi") return pass(); - if (value.slice(value.length - 2) != "${") return cont(quasi); - return cont(expression, continueQuasi); - } - function continueQuasi(type) { - if (type == "}") { - cx.marked = "string-2"; - cx.state.tokenize = tokenQuasi; - return cont(quasi); - } - } - function arrowBody(type) { - findFatArrow(cx.stream, cx.state); - return pass(type == "{" ? statement : expression); - } - function arrowBodyNoComma(type) { - findFatArrow(cx.stream, cx.state); - return pass(type == "{" ? statement : expressionNoComma); - } - function maybeTarget(noComma) { - return function (type) { - if (type == ".") return cont(noComma ? targetNoComma : target); - else return pass(noComma ? expressionNoComma : expression); - }; - } - function target(_, value) { - if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); } - } - function targetNoComma(_, value) { - if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); } - } - function maybelabel(type) { - if (type == ":") return cont(poplex, statement); - return pass(maybeoperatorComma, expect(";"), poplex); - } - function property(type) { - if (type == "variable") { cx.marked = "property"; return cont(); } - } - function objprop(type, value) { - if (type == "async") return cont(objprop); - if (type == "variable" || cx.style == "keyword") { - cx.marked = "property"; - if (value == "get" || value == "set") return cont(getterSetter); - return cont(afterprop); - } else if (type == "number" || type == "string") { - cx.marked = jsonldMode ? "property" : (cx.style + " property"); - return cont(afterprop); - } else if (type == "jsonld-keyword") { - return cont(afterprop); - } else if (type == "modifier") { - return cont(objprop) - } else if (type == "[") { - return cont(expression, expect("]"), afterprop); - } else if (type == "spread") { - return cont(expression); - } - } - function getterSetter(type) { - if (type != "variable") return pass(afterprop); + } + function arrowBody(type) { + findFatArrow(cx.stream, cx.state); + return pass(type == "{" ? statement : expression); + } + function arrowBodyNoComma(type) { + findFatArrow(cx.stream, cx.state); + return pass(type == "{" ? statement : expressionNoComma); + } + function maybeTarget(noComma) { + return function (type) { + if (type == ".") return cont(noComma ? targetNoComma : target); + else return pass(noComma ? expressionNoComma : expression); + }; + } + function target(_, value) { + if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); } + } + function targetNoComma(_, value) { + if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); } + } + function maybelabel(type) { + if (type == ":") return cont(poplex, statement); + return pass(maybeoperatorComma, expect(";"), poplex); + } + function property(type) { + if (type == "variable") { cx.marked = "property"; return cont(); } + } + function objprop(type, value) { + if (type == "async") return cont(objprop); + if (type == "variable" || cx.style == "keyword") { cx.marked = "property"; - return cont(functiondef); + if (value == "get" || value == "set") return cont(getterSetter); + return cont(afterprop); + } else if (type == "number" || type == "string") { + cx.marked = jsonldMode ? "property" : (cx.style + " property"); + return cont(afterprop); + } else if (type == "jsonld-keyword") { + return cont(afterprop); + } else if (type == "modifier") { + return cont(objprop) + } else if (type == "[") { + return cont(expression, expect("]"), afterprop); + } else if (type == "spread") { + return cont(expression); } - function afterprop(type) { - if (type == ":") return cont(expressionNoComma); - if (type == "(") return pass(functiondef); - } - function commasep(what, end) { - function proceed(type, value) { - if (type == ",") { - var lex = cx.state.lexical; - if (lex.info == "call") lex.pos = (lex.pos || 0) + 1; - return cont(function (type, value) { - if (type == end || value == end) return pass() - return pass(what) - }, proceed); - } - if (type == end || value == end) return cont(); - return cont(expect(end)); + } + function getterSetter(type) { + if (type != "variable") return pass(afterprop); + cx.marked = "property"; + return cont(functiondef); + } + function afterprop(type) { + if (type == ":") return cont(expressionNoComma); + if (type == "(") return pass(functiondef); + } + function commasep(what, end) { + function proceed(type, value) { + if (type == ",") { + var lex = cx.state.lexical; + if (lex.info == "call") lex.pos = (lex.pos || 0) + 1; + return cont(function (type, value) { + if (type == end || value == end) return pass() + return pass(what) + }, proceed); } - return function (type, value) { - if (type == end || value == end) return cont(); - return pass(what, proceed); - }; + if (type == end || value == end) return cont(); + return cont(expect(end)); } - function contCommasep(what, end, info) { - for (var i = 3; i < arguments.length; i++) - cx.cc.push(arguments[i]); - return cont(pushlex(end, info), commasep(what, end), poplex); + return function (type, value) { + if (type == end || value == end) return cont(); + return pass(what, proceed); + }; + } + function contCommasep(what, end, info) { + for (var i = 3; i < arguments.length; i++) + cx.cc.push(arguments[i]); + return cont(pushlex(end, info), commasep(what, end), poplex); + } + function block(type) { + if (type == "}") return cont(); + return pass(statement, block); + } + function maybetype(type) { + if (isTS && type == ":") return cont(typeexpr); + } + function maybedefault(_, value) { + if (value == "=") return cont(expressionNoComma); + } + function typeexpr(type) { + if (type == "variable") { cx.marked = "variable-3"; return cont(afterType); } + } + function afterType(type, value) { + if (value == "<") return cont(commasep(typeexpr, ">"), afterType) + if (type == "[") return cont(expect("]"), afterType) + } + function vardef() { + return pass(pattern, maybetype, maybeAssign, vardefCont); + } + function pattern(type, value) { + if (type == "modifier") return cont(pattern) + if (type == "variable") { register(value); return cont(); } + if (type == "spread") return cont(pattern); + if (type == "[") return contCommasep(pattern, "]"); + if (type == "{") return contCommasep(proppattern, "}"); + } + function proppattern(type, value) { + if (type == "variable" && !cx.stream.match(/^\s*:/, false)) { + register(value); + return cont(maybeAssign); } - function block(type) { - if (type == "}") return cont(); - return pass(statement, block); - } - function maybetype(type) { - if (isTS && type == ":") return cont(typeexpr); - } - function maybedefault(_, value) { - if (value == "=") return cont(expressionNoComma); - } - function typeexpr(type) { - if (type == "variable") { cx.marked = "variable-3"; return cont(afterType); } - } - function afterType(type, value) { - if (value == "<") return cont(commasep(typeexpr, ">"), afterType) - if (type == "[") return cont(expect("]"), afterType) - } - function vardef() { - return pass(pattern, maybetype, maybeAssign, vardefCont); - } - function pattern(type, value) { - if (type == "modifier") return cont(pattern) - if (type == "variable") { register(value); return cont(); } - if (type == "spread") return cont(pattern); - if (type == "[") return contCommasep(pattern, "]"); - if (type == "{") return contCommasep(proppattern, "}"); - } - function proppattern(type, value) { - if (type == "variable" && !cx.stream.match(/^\s*:/, false)) { - register(value); - return cont(maybeAssign); - } - if (type == "variable") cx.marked = "property"; - if (type == "spread") return cont(pattern); - if (type == "}") return pass(); - return cont(expect(":"), pattern, maybeAssign); - } - function maybeAssign(_type, value) { - if (value == "=") return cont(expressionNoComma); - } - function vardefCont(type) { - if (type == ",") return cont(vardef); - } - function maybeelse(type, value) { - if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex); - } - function forspec(type) { - if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex); - } - function forspec1(type) { - if (type == "var") return cont(vardef, expect(";"), forspec2); - if (type == ";") return cont(forspec2); - if (type == "variable") return cont(formaybeinof); - return pass(expression, expect(";"), forspec2); - } - function formaybeinof(_type, value) { - if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); } - return cont(maybeoperatorComma, forspec2); - } - function forspec2(type, value) { - if (type == ";") return cont(forspec3); - if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); } - return pass(expression, expect(";"), forspec3); - } - function forspec3(type) { - if (type != ")") cont(expression); - } - function functiondef(type, value) { - if (value == "*") { cx.marked = "keyword"; return cont(functiondef); } - if (type == "variable") { register(value); return cont(functiondef); } - if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, maybetype, statement, popcontext); - } - function funarg(type) { - if (type == "spread") return cont(funarg); - return pass(pattern, maybetype, maybedefault); - } - function className(type, value) { - if (type == "variable") { register(value); return cont(classNameAfter); } - } - function classNameAfter(type, value) { - if (value == "extends") return cont(expression, classNameAfter); - if (type == "{") return cont(pushlex("}"), classBody, poplex); - } - function classBody(type, value) { - if (type == "variable" || cx.style == "keyword") { - if (value == "static") { - cx.marked = "keyword"; - return cont(classBody); - } - cx.marked = "property"; - if (value == "get" || value == "set") return cont(classGetterSetter, functiondef, classBody); - return cont(functiondef, classBody); - } - if (value == "*") { + if (type == "variable") cx.marked = "property"; + if (type == "spread") return cont(pattern); + if (type == "}") return pass(); + return cont(expect(":"), pattern, maybeAssign); + } + function maybeAssign(_type, value) { + if (value == "=") return cont(expressionNoComma); + } + function vardefCont(type) { + if (type == ",") return cont(vardef); + } + function maybeelse(type, value) { + if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex); + } + function forspec(type) { + if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex); + } + function forspec1(type) { + if (type == "var") return cont(vardef, expect(";"), forspec2); + if (type == ";") return cont(forspec2); + if (type == "variable") return cont(formaybeinof); + return pass(expression, expect(";"), forspec2); + } + function formaybeinof(_type, value) { + if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); } + return cont(maybeoperatorComma, forspec2); + } + function forspec2(type, value) { + if (type == ";") return cont(forspec3); + if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); } + return pass(expression, expect(";"), forspec3); + } + function forspec3(type) { + if (type != ")") cont(expression); + } + function functiondef(type, value) { + if (value == "*") { cx.marked = "keyword"; return cont(functiondef); } + if (type == "variable") { register(value); return cont(functiondef); } + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, maybetype, statement, popcontext); + } + function funarg(type) { + if (type == "spread") return cont(funarg); + return pass(pattern, maybetype, maybedefault); + } + function className(type, value) { + if (type == "variable") { register(value); return cont(classNameAfter); } + } + function classNameAfter(type, value) { + if (value == "extends") return cont(expression, classNameAfter); + if (type == "{") return cont(pushlex("}"), classBody, poplex); + } + function classBody(type, value) { + if (type == "variable" || cx.style == "keyword") { + if (value == "static") { cx.marked = "keyword"; return cont(classBody); } - if (type == ";") return cont(classBody); - if (type == "}") return cont(); - } - function classGetterSetter(type) { - if (type != "variable") return pass(); cx.marked = "property"; - return cont(); + if (value == "get" || value == "set") return cont(classGetterSetter, functiondef, classBody); + return cont(functiondef, classBody); } - function afterExport(_type, value) { - if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); } - if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); } - return pass(statement); + if (value == "*") { + cx.marked = "keyword"; + return cont(classBody); } - function afterImport(type) { - if (type == "string") return cont(); - return pass(importSpec, maybeFrom); - } - function importSpec(type, value) { - if (type == "{") return contCommasep(importSpec, "}"); - if (type == "variable") register(value); - if (value == "*") cx.marked = "keyword"; - return cont(maybeAs); - } - function maybeAs(_type, value) { - if (value == "as") { cx.marked = "keyword"; return cont(importSpec); } - } - function maybeFrom(_type, value) { - if (value == "from") { cx.marked = "keyword"; return cont(expression); } - } - function arrayLiteral(type) { - if (type == "]") return cont(); - return pass(expressionNoComma, commasep(expressionNoComma, "]")); - } - - function isContinuedStatement(state, textAfter) { - return state.lastType == "operator" || state.lastType == "," || - isOperatorChar.test(textAfter.charAt(0)) || - /[,.]/.test(textAfter.charAt(0)); - } - - // Interface - - return { - startState: function (basecolumn) { - var state = { - tokenize: tokenBase, - lastType: "sof", - cc: [], - lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false), - localVars: parserConfig.localVars, - context: parserConfig.localVars && { vars: parserConfig.localVars }, - indented: basecolumn || 0 - }; - if (parserConfig.globalVars && typeof parserConfig.globalVars == "object") - state.globalVars = parserConfig.globalVars; - return state; - }, - - token: function (stream, state) { - if (stream.sol()) { - if (!state.lexical.hasOwnProperty("align")) - state.lexical.align = false; - state.indented = stream.indentation(); - findFatArrow(stream, state); - } - if (state.tokenize != tokenComment && stream.eatSpace()) return null; - var style = state.tokenize(stream, state); - if (type == "comment") return style; - state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type; - return parseJS(state, style, type, content, stream); - }, - - indent: function (state, textAfter) { - if (state.tokenize == tokenComment) return CodeMirror.Pass; - if (state.tokenize != tokenBase) return 0; - var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical; - // Kludge to prevent 'maybelse' from blocking lexical scope pops - if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) { - var c = state.cc[i]; - if (c == poplex) lexical = lexical.prev; - else if (c != maybeelse) break; - } - if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev; - if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat") - lexical = lexical.prev; - var type = lexical.type, closing = firstChar == type; - - if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0); - else if (type == "form" && firstChar == "{") return lexical.indented; - else if (type == "form") return lexical.indented + indentUnit; - else if (type == "stat") - return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0); - else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false) - return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit); - else if (lexical.align) return lexical.column + (closing ? 0 : 1); - else return lexical.indented + (closing ? 0 : indentUnit); - }, - - electricInput: /^\s*(?:case .*?:|default:|\{|\})$/, - blockCommentStart: jsonMode ? null : "/*", - blockCommentEnd: jsonMode ? null : "*/", - lineComment: jsonMode ? null : "//", - fold: "brace", - closeBrackets: "()[]{}''\"\"``", - - helperType: jsonMode ? "json" : "javascript", - jsonldMode: jsonldMode, - jsonMode: jsonMode, - - expressionAllowed: expressionAllowed, - skipExpression: function (state) { - var top = state.cc[state.cc.length - 1] - if (top == expression || top == expressionNoComma) state.cc.pop() - } - }; - }); - - CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/); - - CodeMirror.defineMIME("text/javascript", "javascript"); - CodeMirror.defineMIME("text/ecmascript", "javascript"); - CodeMirror.defineMIME("application/javascript", "javascript"); - CodeMirror.defineMIME("application/x-javascript", "javascript"); - CodeMirror.defineMIME("application/ecmascript", "javascript"); - CodeMirror.defineMIME("application/json", { name: "javascript", json: true }); - CodeMirror.defineMIME("application/x-json", { name: "javascript", json: true }); - CodeMirror.defineMIME("application/ld+json", { name: "javascript", jsonld: true }); - CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true }); - CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true }); - - }); - - // CodeMirror, copyright (c) by Marijn Haverbeke and others - // Distributed under an MIT license: http://codemirror.net/LICENSE - - (function (mod) { - // Plain browser env - mod(CodeMirror); - })(function (CodeMirror) { - var defaults = { - pairs: "()[]{}''\"\"", - triples: "", - explode: "[]{}" - }; - - var Pos = CodeMirror.Pos; - - CodeMirror.defineOption("autoCloseBrackets", false, function (cm, val, old) { - if (old && old != CodeMirror.Init) { - cm.removeKeyMap(keyMap); - cm.state.closeBrackets = null; - } - if (val) { - cm.state.closeBrackets = val; - cm.addKeyMap(keyMap); - } - }); - - function getOption(conf, name) { - if (name == "pairs" && typeof conf == "string") return conf; - if (typeof conf == "object" && conf[name] != null) return conf[name]; - return defaults[name]; + if (type == ";") return cont(classBody); + if (type == "}") return cont(); + } + function classGetterSetter(type) { + if (type != "variable") return pass(); + cx.marked = "property"; + return cont(); + } + function afterExport(_type, value) { + if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); } + if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); } + return pass(statement); + } + function afterImport(type) { + if (type == "string") return cont(); + return pass(importSpec, maybeFrom); + } + function importSpec(type, value) { + if (type == "{") return contCommasep(importSpec, "}"); + if (type == "variable") register(value); + if (value == "*") cx.marked = "keyword"; + return cont(maybeAs); + } + function maybeAs(_type, value) { + if (value == "as") { cx.marked = "keyword"; return cont(importSpec); } + } + function maybeFrom(_type, value) { + if (value == "from") { cx.marked = "keyword"; return cont(expression); } + } + function arrayLiteral(type) { + if (type == "]") return cont(); + return pass(expressionNoComma, commasep(expressionNoComma, "]")); } - var bind = defaults.pairs + "`"; - var keyMap = { Backspace: handleBackspace, Enter: handleEnter }; - for (var i = 0; i < bind.length; i++) - keyMap["'" + bind.charAt(i) + "'"] = handler(bind.charAt(i)); - - function handler(ch) { - return function (cm) { return handleChar(cm, ch); }; + function isContinuedStatement(state, textAfter) { + return state.lastType == "operator" || state.lastType == "," || + isOperatorChar.test(textAfter.charAt(0)) || + /[,.]/.test(textAfter.charAt(0)); } - function getConfig(cm) { - var deflt = cm.state.closeBrackets; - if (!deflt) return null; - var mode = cm.getModeAt(cm.getCursor()); - return mode.closeBrackets || deflt; - } - - function handleBackspace(cm) { - var conf = getConfig(cm); - if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; - - var pairs = getOption(conf, "pairs"); - var ranges = cm.listSelections(); - for (var i = 0; i < ranges.length; i++) { - if (!ranges[i].empty()) return CodeMirror.Pass; - var around = charsAround(cm, ranges[i].head); - if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass; - } - for (var i = ranges.length - 1; i >= 0; i--) { - var cur = ranges[i].head; - cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete"); - } - } - - function handleEnter(cm) { - var conf = getConfig(cm); - var explode = conf && getOption(conf, "explode"); - if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass; - - var ranges = cm.listSelections(); - for (var i = 0; i < ranges.length; i++) { - if (!ranges[i].empty()) return CodeMirror.Pass; - var around = charsAround(cm, ranges[i].head); - if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass; - } - cm.operation(function () { - cm.replaceSelection("\n\n", null); - cm.execCommand("goCharLeft"); - ranges = cm.listSelections(); - for (var i = 0; i < ranges.length; i++) { - var line = ranges[i].head.line; - cm.indentLine(line, null, true); - cm.indentLine(line + 1, null, true); - } - }); - } - - function contractSelection(sel) { - var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0; - return { - anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)), - head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1)) - }; - } - - function handleChar(cm, ch) { - var conf = getConfig(cm); - if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; - - var pairs = getOption(conf, "pairs"); - var pos = pairs.indexOf(ch); - if (pos == -1) return CodeMirror.Pass; - var triples = getOption(conf, "triples"); - - var identical = pairs.charAt(pos + 1) == ch; - var ranges = cm.listSelections(); - var opening = pos % 2 == 0; - - var type; - for (var i = 0; i < ranges.length; i++) { - var range = ranges[i], cur = range.head, curType; - var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1)); - if (opening && !range.empty()) { - curType = "surround"; - } else if ((identical || !opening) && next == ch) { - if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch) - curType = "skipThree"; - else - curType = "skip"; - } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 && - cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch && - (cur.ch <= 2 || cm.getRange(Pos(cur.line, cur.ch - 3), Pos(cur.line, cur.ch - 2)) != ch)) { - curType = "addFour"; - } else if (identical) { - if (!CodeMirror.isWordChar(next) && enteringString(cm, cur, ch)) curType = "both"; - else return CodeMirror.Pass; - } else if (opening && (cm.getLine(cur.line).length == cur.ch || - isClosingBracket(next, pairs) || - /\s/.test(next))) { - curType = "both"; - } else { - return CodeMirror.Pass; - } - if (!type) type = curType; - else if (type != curType) return CodeMirror.Pass; - } - - var left = pos % 2 ? pairs.charAt(pos - 1) : ch; - var right = pos % 2 ? ch : pairs.charAt(pos + 1); - cm.operation(function () { - if (type == "skip") { - cm.execCommand("goCharRight"); - } else if (type == "skipThree") { - for (var i = 0; i < 3; i++) - cm.execCommand("goCharRight"); - } else if (type == "surround") { - var sels = cm.getSelections(); - for (var i = 0; i < sels.length; i++) - sels[i] = left + sels[i] + right; - cm.replaceSelections(sels, "around"); - sels = cm.listSelections().slice(); - for (var i = 0; i < sels.length; i++) - sels[i] = contractSelection(sels[i]); - cm.setSelections(sels); - } else if (type == "both") { - cm.replaceSelection(left + right, null); - cm.triggerElectric(left + right); - cm.execCommand("goCharLeft"); - } else if (type == "addFour") { - cm.replaceSelection(left + left + left + left, "before"); - cm.execCommand("goCharRight"); - } - }); - } - - function isClosingBracket(ch, pairs) { - var pos = pairs.lastIndexOf(ch); - return pos > -1 && pos % 2 == 1; - } - - function charsAround(cm, pos) { - var str = cm.getRange(Pos(pos.line, pos.ch - 1), - Pos(pos.line, pos.ch + 1)); - return str.length == 2 ? str : null; - } - - // Project the token type that will exists after the given char is - // typed, and use it to determine whether it would cause the start - // of a string token. - function enteringString(cm, pos, ch) { - var line = cm.getLine(pos.line); - var token = cm.getTokenAt(pos); - if (/\bstring2?\b/.test(token.type)) return false; - var stream = new CodeMirror.StringStream(line.slice(0, pos.ch) + ch + line.slice(pos.ch), 4); - stream.pos = stream.start = token.start; - for (; ;) { - var type1 = cm.getMode().token(stream, token.state); - if (stream.pos >= pos.ch + 1) return /\bstring2?\b/.test(type1); - stream.start = stream.pos; - } - } - }); - - // CodeMirror, copyright (c) by Marijn Haverbeke and others - // Distributed under an MIT license: https://codemirror.net/LICENSE - - // declare global: DOMRect - - (function (mod) { - // Plain browser env - mod(CodeMirror); - })(function (CodeMirror) { - "use strict"; - - var HINT_ELEMENT_CLASS = "CodeMirror-hint"; - var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active"; - - // This is the old interface, kept around for now to stay - // backwards-compatible. - CodeMirror.showHint = function (cm, getHints, options) { - if (!getHints) return cm.showHint(options); - if (options && options.async) getHints.async = true; - var newOpts = { hint: getHints }; - if (options) for (var prop in options) newOpts[prop] = options[prop]; - return cm.showHint(newOpts); - }; - - CodeMirror.defineExtension("showHint", function (options) { - options = parseOptions(this, this.getCursor("start"), options); - var selections = this.listSelections() - if (selections.length > 1) return; - // By default, don't allow completion when something is selected. - // A hint function can have a `supportsSelection` property to - // indicate that it can handle selections. - if (this.somethingSelected()) { - if (!options.hint.supportsSelection) return; - // Don't try with cross-line selections - for (var i = 0; i < selections.length; i++) - if (selections[i].head.line != selections[i].anchor.line) return; - } - - if (this.state.completionActive) this.state.completionActive.close(); - var completion = this.state.completionActive = new Completion(this, options); - if (!completion.options.hint) return; - - CodeMirror.signal(this, "startCompletion", this); - completion.update(true); - }); - - CodeMirror.defineExtension("closeHint", function () { - if (this.state.completionActive) this.state.completionActive.close() - }) - - function Completion(cm, options) { - this.cm = cm; - this.options = options; - this.widget = null; - this.debounce = 0; - this.tick = 0; - this.startPos = this.cm.getCursor("start"); - this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length; - - if (this.options.updateOnCursorActivity) { - var self = this; - cm.on("cursorActivity", this.activityFunc = function () { self.cursorActivity(); }); - } - } - - var requestAnimationFrame = window.requestAnimationFrame || function (fn) { - return setTimeout(fn, 1000 / 60); - }; - var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout; - - Completion.prototype = { - close: function () { - if (!this.active()) return; - this.cm.state.completionActive = null; - this.tick = null; - if (this.options.updateOnCursorActivity) { - this.cm.off("cursorActivity", this.activityFunc); - } - - if (this.widget && this.data) CodeMirror.signal(this.data, "close"); - if (this.widget) this.widget.close(); - CodeMirror.signal(this.cm, "endCompletion", this.cm); - }, - - active: function () { - return this.cm.state.completionActive == this; - }, - - pick: function (data, i) { - var completion = data.list[i], self = this; - this.cm.operation(function () { - if (completion.hint) - completion.hint(self.cm, data, completion); - else - self.cm.replaceRange(getText(completion), completion.from || data.from, - completion.to || data.to, "complete"); - CodeMirror.signal(data, "pick", completion); - self.cm.scrollIntoView(); - }); - if (this.options.closeOnPick) { - this.close(); - } - }, - - cursorActivity: function () { - if (this.debounce) { - cancelAnimationFrame(this.debounce); - this.debounce = 0; - } - - var identStart = this.startPos; - if (this.data) { - identStart = this.data.from; - } - - var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line); - if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch || - pos.ch < identStart.ch || this.cm.somethingSelected() || - (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) { - this.close(); - } else { - var self = this; - this.debounce = requestAnimationFrame(function () { self.update(); }); - if (this.widget) this.widget.disable(); - } - }, - - update: function (first) { - if (this.tick == null) return - var self = this, myTick = ++this.tick - fetchHints(this.options.hint, this.cm, this.options, function (data) { - if (self.tick == myTick) self.finishUpdate(data, first) - }) - }, - - finishUpdate: function (data, first) { - if (this.data) CodeMirror.signal(this.data, "update"); - - var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle); - if (this.widget) this.widget.close(); - - this.data = data; - - if (data && data.list.length) { - if (picked && data.list.length == 1) { - this.pick(data, 0); - } else { - this.widget = new Widget(this, data); - CodeMirror.signal(data, "shown"); - } - } - } - }; - - function parseOptions(cm, pos, options) { - var editor = cm.options.hintOptions; - var out = {}; - for (var prop in defaultOptions) out[prop] = defaultOptions[prop]; - if (editor) for (var prop in editor) - if (editor[prop] !== undefined) out[prop] = editor[prop]; - if (options) for (var prop in options) - if (options[prop] !== undefined) out[prop] = options[prop]; - if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos) - return out; - } - - function getText(completion) { - if (typeof completion == "string") return completion; - else return completion.text; - } - - function buildKeyMap(completion, handle) { - var baseMap = { - Up: function () { handle.moveFocus(-1); }, - Down: function () { handle.moveFocus(1); }, - PageUp: function () { handle.moveFocus(-handle.menuSize() + 1, true); }, - PageDown: function () { handle.moveFocus(handle.menuSize() - 1, true); }, - Home: function () { handle.setFocus(0); }, - End: function () { handle.setFocus(handle.length - 1); }, - Enter: handle.pick, - Tab: handle.pick, - Esc: handle.close - }; - - var mac = /Mac/.test(navigator.platform); - - if (mac) { - baseMap["Ctrl-P"] = function () { handle.moveFocus(-1); }; - baseMap["Ctrl-N"] = function () { handle.moveFocus(1); }; - } - - var custom = completion.options.customKeys; - var ourMap = custom ? {} : baseMap; - function addBinding(key, val) { - var bound; - if (typeof val != "string") - bound = function (cm) { return val(cm, handle); }; - // This mechanism is deprecated - else if (baseMap.hasOwnProperty(val)) - bound = baseMap[val]; - else - bound = val; - ourMap[key] = bound; - } - if (custom) - for (var key in custom) if (custom.hasOwnProperty(key)) - addBinding(key, custom[key]); - var extra = completion.options.extraKeys; - if (extra) - for (var key in extra) if (extra.hasOwnProperty(key)) - addBinding(key, extra[key]); - return ourMap; - } - - function getHintElement(hintsElement, el) { - while (el && el != hintsElement) { - if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el; - el = el.parentNode; - } - } - - function Widget(completion, data) { - this.completion = completion; - this.data = data; - this.picked = false; - var widget = this, cm = completion.cm; - var ownerDocument = cm.getInputField().ownerDocument; - var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow; - var hints = this.hints = ownerDocument.createElement("ul"); - var theme = completion.cm.options.theme; - hints.className = "CodeMirror-hints " + theme; - this.selectedHint = data.selectedHint || 0; - - var completions = data.list; - for (var i = 0; i < completions.length; ++i) { - var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i]; - var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS); - if (cur.className != null) className = cur.className + " " + className; - elt.className = className; - if (cur.render) cur.render(elt, data, cur); - else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur))); - elt.hintId = i; - CodeMirror.on(elt, "mouseover", function (e) { - widget.changeActive(this.hintId); - }); - CodeMirror.on(elt, "touchstart", function (e) { - widget.changeActive(this.hintId); - }); - CodeMirror.on(elt, "touchend", function (e) { - var cur = cm.getCursor(); - var self = this; - setTimeout(function () { - cm.focus(); - var cur2 = cm.getCursor(); - if (cur2.line == cur.line && cur2.ch == 0) { - var textLen = self.innerText.length; - cm.setCursor({ line: cur.line, ch: cur.ch + textLen }); - } - }, 10); - }); - } - - var container = completion.options.container || ownerDocument.body; - var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null); - var left = pos.left, top = pos.bottom, below = true; - var offsetLeft = 0, offsetTop = 0; - if (container !== ownerDocument.body) { - // We offset the cursor position because left and top are relative to the offsetParent's top left corner. - var isContainerPositioned = ['absolute', 'relative', 'fixed'].indexOf(parentWindow.getComputedStyle(container).position) !== -1; - var offsetParent = isContainerPositioned ? container : container.offsetParent; - var offsetParentPosition = offsetParent.getBoundingClientRect(); - var bodyPosition = ownerDocument.body.getBoundingClientRect(); - offsetLeft = (offsetParentPosition.left - bodyPosition.left - offsetParent.scrollLeft); - offsetTop = (offsetParentPosition.top - bodyPosition.top - offsetParent.scrollTop); - } - var documentZoom = getDocumentZoom(); - hints.style.fontSize = 16 / documentZoom * 0.9 + "px"; - hints.style.left = (left - offsetLeft) / documentZoom + "px"; - hints.style.top = (top - offsetTop) / documentZoom + "px"; - - // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor. - var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth); - var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight); - container.appendChild(hints); - - var box = completion.options.moveOnOverlap ? hints.getBoundingClientRect() : new DOMRect(); - var scrolls = completion.options.paddingForScrollbar ? hints.scrollHeight > hints.clientHeight + 1 : false; - - // Compute in the timeout to avoid reflow on init - var startScroll; - setTimeout(function () { startScroll = cm.getScrollInfo(); }); - - var overlapY = box.bottom - winH; - if (overlapY > 0) { - var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top); - if (curTop - height > 0) { // Fits above cursor - hints.style.top = (top = pos.top - height - offsetTop) / documentZoom + "px"; - below = false; - } else if (height > winH) { - hints.style.height = (winH - 5) / documentZoom + "px"; - hints.style.top = (top = pos.bottom - box.top - offsetTop) / documentZoom + "px"; - var cursor = cm.getCursor(); - if (data.from.ch != cursor.ch) { - pos = cm.cursorCoords(cursor); - hints.style.left = (left = pos.left - offsetLeft) / documentZoom + "px"; - box = hints.getBoundingClientRect(); - } - } - } - var overlapX = box.right - winW; - if (overlapX > 0) { - if (box.right - box.left > winW) { - hints.style.width = (winW - 5) / documentZoom + "px"; - overlapX -= (box.right - box.left) - winW; - } - hints.style.left = (left = pos.left - overlapX - offsetLeft) / documentZoom + "px"; - } - if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling) - node.style.paddingRight = cm.display.nativeBarWidth / documentZoom + "px" - - cm.addKeyMap(this.keyMap = buildKeyMap(completion, { - moveFocus: function (n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); }, - setFocus: function (n) { widget.changeActive(n); }, - menuSize: function () { return widget.screenAmount(); }, - length: completions.length, - close: function () { completion.close(); }, - pick: function () { widget.pick(); }, - data: data - })); - - if (completion.options.closeOnUnfocus) { - var closingOnBlur; - cm.on("blur", this.onBlur = function () { closingOnBlur = setTimeout(function () { completion.close(); }, 100); }); - cm.on("focus", this.onFocus = function () { clearTimeout(closingOnBlur); }); - } - - cm.on("scroll", this.onScroll = function () { - // fix "startScroll == undfined" - if (!startScroll) return; - var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect(); - var newTop = top + startScroll.top - curScroll.top; - var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop); - if (!below) point += hints.offsetHeight; - if (point <= editor.top || point >= editor.bottom) return completion.close(); - hints.style.top = newTop / documentZoom + "px"; - hints.style.left = (left + startScroll.left - curScroll.left) / documentZoom + "px"; - }); - - CodeMirror.on(hints, "dblclick", function (e) { - var t = getHintElement(hints, e.target || e.srcElement); - if (t && t.hintId != null) { widget.changeActive(t.hintId); widget.pick(); } - }); - - CodeMirror.on(hints, "click", function (e) { - var t = getHintElement(hints, e.target || e.srcElement); - if (t && t.hintId != null) { - widget.changeActive(t.hintId); - if (completion.options.completeOnSingleClick) widget.pick(); - } - }); - - CodeMirror.on(hints, "mousedown", function () { - setTimeout(function () { cm.focus(); }, 20); - }); - - //滑动修复 - CodeMirror.on(hints, "touchmove", function (event) { - if (ios && this.scrollHeight <= this.offsetHeight + 5 && this.scrollWidth <= this.offsetWidth + 5) { - event.preventDefault(); - } - else { - event.stopPropagation(); - } - }); - hints.style.WebkitOverflowScrolling = 'touch'; - - // The first hint doesn't need to be scrolled to on init - var selectedHintRange = this.getSelectedHintRange(); - if (selectedHintRange.from !== 0 || selectedHintRange.to !== 0) { - this.scrollToActive(); - } - - CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]); - return true; - } - - Widget.prototype = { - close: function () { - if (this.completion.widget != this) return; - this.completion.widget = null; - this.hints.parentNode.removeChild(this.hints); - this.completion.cm.removeKeyMap(this.keyMap); - - var cm = this.completion.cm; - if (this.completion.options.closeOnUnfocus) { - cm.off("blur", this.onBlur); - cm.off("focus", this.onFocus); - } - cm.off("scroll", this.onScroll); - }, - - disable: function () { - this.completion.cm.removeKeyMap(this.keyMap); - var widget = this; - this.keyMap = { Enter: function () { widget.picked = true; } }; - this.completion.cm.addKeyMap(this.keyMap); - }, - - pick: function () { - this.completion.pick(this.data, this.selectedHint); - }, - - changeActive: function (i, avoidWrap) { - if (i >= this.data.list.length) - i = avoidWrap ? this.data.list.length - 1 : 0; - else if (i < 0) - i = avoidWrap ? 0 : this.data.list.length - 1; - if (this.selectedHint == i) return; - var node = this.hints.childNodes[this.selectedHint]; - if (node) node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, ""); - node = this.hints.childNodes[this.selectedHint = i]; - node.className += " " + ACTIVE_HINT_ELEMENT_CLASS; - this.scrollToActive() - CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node); - }, - - scrollToActive: function () { - var selectedHintRange = this.getSelectedHintRange(); - var node1 = this.hints.childNodes[selectedHintRange.from]; - var node2 = this.hints.childNodes[selectedHintRange.to]; - var firstNode = this.hints.firstChild; - if (node1.offsetTop < this.hints.scrollTop) - this.hints.scrollTop = node1.offsetTop - firstNode.offsetTop; - else if (node2.offsetTop + node2.offsetHeight > this.hints.scrollTop + this.hints.clientHeight) - this.hints.scrollTop = node2.offsetTop + node2.offsetHeight - this.hints.clientHeight + firstNode.offsetTop; - }, - - screenAmount: function () { - return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1; - }, - - getSelectedHintRange: function () { - var margin = this.completion.options.scrollMargin || 0; - return { - from: Math.max(0, this.selectedHint - margin), - to: Math.min(this.data.list.length - 1, this.selectedHint + margin), + // Interface + + return { + startState: function (basecolumn) { + var state = { + tokenize: tokenBase, + lastType: "sof", + cc: [], + lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false), + localVars: parserConfig.localVars, + context: parserConfig.localVars && { vars: parserConfig.localVars }, + indented: basecolumn || 0 }; - } - }; + if (parserConfig.globalVars && typeof parserConfig.globalVars == "object") + state.globalVars = parserConfig.globalVars; + return state; + }, - function applicableHelpers(cm, helpers) { - if (!cm.somethingSelected()) return helpers - var result = [] - for (var i = 0; i < helpers.length; i++) - if (helpers[i].supportsSelection) result.push(helpers[i]) - return result - } - - function fetchHints(hint, cm, options, callback) { - if (hint.async) { - hint(cm, callback, options) - } else { - var result = hint(cm, options) - if (result && result.then) result.then(callback) - else callback(result) - } - } - - function resolveAutoHints(cm, pos) { - var helpers = cm.getHelpers(pos, "hint"), words - if (helpers.length) { - var resolved = function (cm, callback, options) { - var app = applicableHelpers(cm, helpers); - function run(i) { - if (i == app.length) return callback(null) - fetchHints(app[i], cm, options, function (result) { - if (result && result.list.length > 0) callback(result) - else run(i + 1) - }) - } - run(0) + token: function (stream, state) { + if (stream.sol()) { + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = false; + state.indented = stream.indentation(); + findFatArrow(stream, state); } - resolved.async = true - resolved.supportsSelection = true - return resolved - } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) { - return function (cm) { return CodeMirror.hint.fromList(cm, { words: words }) } - } else if (CodeMirror.hint.anyword) { - return function (cm, options) { return CodeMirror.hint.anyword(cm, options) } - } else { - return function () { } + if (state.tokenize != tokenComment && stream.eatSpace()) return null; + var style = state.tokenize(stream, state); + if (type == "comment") return style; + state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type; + return parseJS(state, style, type, content, stream); + }, + + indent: function (state, textAfter) { + if (state.tokenize == tokenComment) return CodeMirror.Pass; + if (state.tokenize != tokenBase) return 0; + var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical; + // Kludge to prevent 'maybelse' from blocking lexical scope pops + if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) { + var c = state.cc[i]; + if (c == poplex) lexical = lexical.prev; + else if (c != maybeelse) break; + } + if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev; + if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat") + lexical = lexical.prev; + var type = lexical.type, closing = firstChar == type; + + if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0); + else if (type == "form" && firstChar == "{") return lexical.indented; + else if (type == "form") return lexical.indented + indentUnit; + else if (type == "stat") + return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0); + else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false) + return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit); + else if (lexical.align) return lexical.column + (closing ? 0 : 1); + else return lexical.indented + (closing ? 0 : indentUnit); + }, + + electricInput: /^\s*(?:case .*?:|default:|\{|\})$/, + blockCommentStart: jsonMode ? null : "/*", + blockCommentEnd: jsonMode ? null : "*/", + lineComment: jsonMode ? null : "//", + fold: "brace", + closeBrackets: "()[]{}''\"\"``", + + helperType: jsonMode ? "json" : "javascript", + jsonldMode: jsonldMode, + jsonMode: jsonMode, + + expressionAllowed: expressionAllowed, + skipExpression: function (state) { + var top = state.cc[state.cc.length - 1] + if (top == expression || top == expressionNoComma) state.cc.pop() } + }; + }); + + CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/); + + CodeMirror.defineMIME("text/javascript", "javascript"); + CodeMirror.defineMIME("text/ecmascript", "javascript"); + CodeMirror.defineMIME("application/javascript", "javascript"); + CodeMirror.defineMIME("application/x-javascript", "javascript"); + CodeMirror.defineMIME("application/ecmascript", "javascript"); + CodeMirror.defineMIME("application/json", { name: "javascript", json: true }); + CodeMirror.defineMIME("application/x-json", { name: "javascript", json: true }); + CodeMirror.defineMIME("application/ld+json", { name: "javascript", jsonld: true }); + CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true }); + CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true }); + +})(); + +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://codemirror.net/LICENSE + +(function () { + var defaults = { + pairs: "()[]{}''\"\"", + triples: "", + explode: "[]{}" + }; + + var Pos = CodeMirror.Pos; + + CodeMirror.defineOption("autoCloseBrackets", false, function (cm, val, old) { + if (old && old != CodeMirror.Init) { + cm.removeKeyMap(keyMap); + cm.state.closeBrackets = null; + } + if (val) { + cm.state.closeBrackets = val; + cm.addKeyMap(keyMap); + } + }); + + function getOption(conf, name) { + if (name == "pairs" && typeof conf == "string") return conf; + if (typeof conf == "object" && conf[name] != null) return conf[name]; + return defaults[name]; + } + + var bind = defaults.pairs + "`"; + var keyMap = { Backspace: handleBackspace, Enter: handleEnter }; + for (var i = 0; i < bind.length; i++) + keyMap["'" + bind.charAt(i) + "'"] = handler(bind.charAt(i)); + + function handler(ch) { + return function (cm) { return handleChar(cm, ch); }; + } + + function getConfig(cm) { + var deflt = cm.state.closeBrackets; + if (!deflt) return null; + var mode = cm.getModeAt(cm.getCursor()); + return mode.closeBrackets || deflt; + } + + function handleBackspace(cm) { + var conf = getConfig(cm); + if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; + + var pairs = getOption(conf, "pairs"); + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) return CodeMirror.Pass; + var around = charsAround(cm, ranges[i].head); + if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass; + } + for (var i = ranges.length - 1; i >= 0; i--) { + var cur = ranges[i].head; + cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete"); + } + } + + function handleEnter(cm) { + var conf = getConfig(cm); + var explode = conf && getOption(conf, "explode"); + if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass; + + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) return CodeMirror.Pass; + var around = charsAround(cm, ranges[i].head); + if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass; + } + cm.operation(function () { + cm.replaceSelection("\n\n", null); + cm.execCommand("goCharLeft"); + ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var line = ranges[i].head.line; + cm.indentLine(line, null, true); + cm.indentLine(line + 1, null, true); + } + }); + } + + function contractSelection(sel) { + var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0; + return { + anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)), + head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1)) + }; + } + + function handleChar(cm, ch) { + var conf = getConfig(cm); + if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; + + var pairs = getOption(conf, "pairs"); + var pos = pairs.indexOf(ch); + if (pos == -1) return CodeMirror.Pass; + var triples = getOption(conf, "triples"); + + var identical = pairs.charAt(pos + 1) == ch; + var ranges = cm.listSelections(); + var opening = pos % 2 == 0; + + var type; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i], cur = range.head, curType; + var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1)); + if (opening && !range.empty()) { + curType = "surround"; + } else if ((identical || !opening) && next == ch) { + if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch) + curType = "skipThree"; + else + curType = "skip"; + } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 && + cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch && + (cur.ch <= 2 || cm.getRange(Pos(cur.line, cur.ch - 3), Pos(cur.line, cur.ch - 2)) != ch)) { + curType = "addFour"; + } else if (identical) { + if (!CodeMirror.isWordChar(next) && enteringString(cm, cur, ch)) curType = "both"; + else return CodeMirror.Pass; + } else if (opening && (cm.getLine(cur.line).length == cur.ch || + isClosingBracket(next, pairs) || + /\s/.test(next))) { + curType = "both"; + } else { + return CodeMirror.Pass; + } + if (!type) type = curType; + else if (type != curType) return CodeMirror.Pass; } - CodeMirror.registerHelper("hint", "auto", { - resolve: resolveAutoHints + var left = pos % 2 ? pairs.charAt(pos - 1) : ch; + var right = pos % 2 ? ch : pairs.charAt(pos + 1); + cm.operation(function () { + if (type == "skip") { + cm.execCommand("goCharRight"); + } else if (type == "skipThree") { + for (var i = 0; i < 3; i++) + cm.execCommand("goCharRight"); + } else if (type == "surround") { + var sels = cm.getSelections(); + for (var i = 0; i < sels.length; i++) + sels[i] = left + sels[i] + right; + cm.replaceSelections(sels, "around"); + sels = cm.listSelections().slice(); + for (var i = 0; i < sels.length; i++) + sels[i] = contractSelection(sels[i]); + cm.setSelections(sels); + } else if (type == "both") { + cm.replaceSelection(left + right, null); + cm.triggerElectric(left + right); + cm.execCommand("goCharLeft"); + } else if (type == "addFour") { + cm.replaceSelection(left + left + left + left, "before"); + cm.execCommand("goCharRight"); + } }); + } - CodeMirror.registerHelper("hint", "fromList", function (cm, options) { - var cur = cm.getCursor(), token = cm.getTokenAt(cur) - var term, from = CodeMirror.Pos(cur.line, token.start), to = cur - if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) { - term = token.string.substr(0, cur.ch - token.start) + function isClosingBracket(ch, pairs) { + var pos = pairs.lastIndexOf(ch); + return pos > -1 && pos % 2 == 1; + } + + function charsAround(cm, pos) { + var str = cm.getRange(Pos(pos.line, pos.ch - 1), + Pos(pos.line, pos.ch + 1)); + return str.length == 2 ? str : null; + } + + // Project the token type that will exists after the given char is + // typed, and use it to determine whether it would cause the start + // of a string token. + function enteringString(cm, pos, ch) { + var line = cm.getLine(pos.line); + var token = cm.getTokenAt(pos); + if (/\bstring2?\b/.test(token.type)) return false; + var stream = new CodeMirror.StringStream(line.slice(0, pos.ch) + ch + line.slice(pos.ch), 4); + stream.pos = stream.start = token.start; + for (; ;) { + var type1 = cm.getMode().token(stream, token.state); + if (stream.pos >= pos.ch + 1) return /\bstring2?\b/.test(type1); + stream.start = stream.pos; + } + } +})(); + +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +// declare global: DOMRect + +(function () { + "use strict"; + + var HINT_ELEMENT_CLASS = "CodeMirror-hint"; + var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active"; + + // This is the old interface, kept around for now to stay + // backwards-compatible. + CodeMirror.showHint = function (cm, getHints, options) { + if (!getHints) return cm.showHint(options); + if (options && options.async) getHints.async = true; + var newOpts = { hint: getHints }; + if (options) for (var prop in options) newOpts[prop] = options[prop]; + return cm.showHint(newOpts); + }; + + CodeMirror.defineExtension("showHint", function (options) { + options = parseOptions(this, this.getCursor("start"), options); + var selections = this.listSelections() + if (selections.length > 1) return; + // By default, don't allow completion when something is selected. + // A hint function can have a `supportsSelection` property to + // indicate that it can handle selections. + if (this.somethingSelected()) { + if (!options.hint.supportsSelection) return; + // Don't try with cross-line selections + for (var i = 0; i < selections.length; i++) + if (selections[i].head.line != selections[i].anchor.line) return; + } + + if (this.state.completionActive) this.state.completionActive.close(); + var completion = this.state.completionActive = new Completion(this, options); + if (!completion.options.hint) return; + + CodeMirror.signal(this, "startCompletion", this); + completion.update(true); + }); + + CodeMirror.defineExtension("closeHint", function () { + if (this.state.completionActive) this.state.completionActive.close() + }) + + function Completion(cm, options) { + this.cm = cm; + this.options = options; + this.widget = null; + this.debounce = 0; + this.tick = 0; + this.startPos = this.cm.getCursor("start"); + this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length; + + if (this.options.updateOnCursorActivity) { + var self = this; + cm.on("cursorActivity", this.activityFunc = function () { self.cursorActivity(); }); + } + } + + var requestAnimationFrame = window.requestAnimationFrame || function (fn) { + return setTimeout(fn, 1000 / 60); + }; + var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout; + + Completion.prototype = { + close: function () { + if (!this.active()) return; + this.cm.state.completionActive = null; + this.tick = null; + if (this.options.updateOnCursorActivity) { + this.cm.off("cursorActivity", this.activityFunc); + } + + if (this.widget && this.data) CodeMirror.signal(this.data, "close"); + if (this.widget) this.widget.close(); + CodeMirror.signal(this.cm, "endCompletion", this.cm); + }, + + active: function () { + return this.cm.state.completionActive == this; + }, + + pick: function (data, i) { + var completion = data.list[i], self = this; + this.cm.operation(function () { + if (completion.hint) + completion.hint(self.cm, data, completion); + else + self.cm.replaceRange(getText(completion), completion.from || data.from, + completion.to || data.to, "complete"); + CodeMirror.signal(data, "pick", completion); + self.cm.scrollIntoView(); + }); + if (this.options.closeOnPick) { + this.close(); + } + }, + + cursorActivity: function () { + if (this.debounce) { + cancelAnimationFrame(this.debounce); + this.debounce = 0; + } + + var identStart = this.startPos; + if (this.data) { + identStart = this.data.from; + } + + var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line); + if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch || + pos.ch < identStart.ch || this.cm.somethingSelected() || + (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) { + this.close(); } else { - term = "" - from = cur + var self = this; + this.debounce = requestAnimationFrame(function () { self.update(); }); + if (this.widget) this.widget.disable(); } - var found = []; - for (var i = 0; i < options.words.length; i++) { - var word = options.words[i]; - if (word.slice(0, term.length) == term) - found.push(word); + }, + + update: function (first) { + if (this.tick == null) return + var self = this, myTick = ++this.tick + fetchHints(this.options.hint, this.cm, this.options, function (data) { + if (self.tick == myTick) self.finishUpdate(data, first) + }) + }, + + finishUpdate: function (data, first) { + if (this.data) CodeMirror.signal(this.data, "update"); + + var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle); + if (this.widget) this.widget.close(); + + this.data = data; + + if (data && data.list.length) { + if (picked && data.list.length == 1) { + this.pick(data, 0); + } else { + this.widget = new Widget(this, data); + CodeMirror.signal(data, "shown"); + } } + } + }; - if (found.length) return { list: found, from: from, to: to }; - }); + function parseOptions(cm, pos, options) { + var editor = cm.options.hintOptions; + var out = {}; + for (var prop in defaultOptions) out[prop] = defaultOptions[prop]; + if (editor) for (var prop in editor) + if (editor[prop] !== undefined) out[prop] = editor[prop]; + if (options) for (var prop in options) + if (options[prop] !== undefined) out[prop] = options[prop]; + if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos) + return out; + } - CodeMirror.commands.autocomplete = CodeMirror.showHint; + function getText(completion) { + if (typeof completion == "string") return completion; + else return completion.text; + } - var defaultOptions = { - hint: CodeMirror.hint.auto, - completeSingle: true, - alignWithWord: true, - closeCharacters: /[\s()\[\]{};:>,]/, - closeOnPick: true, - closeOnUnfocus: true, - updateOnCursorActivity: true, - completeOnSingleClick: true, - container: null, - customKeys: null, - extraKeys: null, - paddingForScrollbar: true, - moveOnOverlap: true, + function buildKeyMap(completion, handle) { + var baseMap = { + Up: function () { handle.moveFocus(-1); }, + Down: function () { handle.moveFocus(1); }, + PageUp: function () { handle.moveFocus(-handle.menuSize() + 1, true); }, + PageDown: function () { handle.moveFocus(handle.menuSize() - 1, true); }, + Home: function () { handle.setFocus(0); }, + End: function () { handle.setFocus(handle.length - 1); }, + Enter: handle.pick, + Tab: handle.pick, + Esc: handle.close }; - CodeMirror.defineOption("hintOptions", null); + var mac = /Mac/.test(navigator.platform); + + if (mac) { + baseMap["Ctrl-P"] = function () { handle.moveFocus(-1); }; + baseMap["Ctrl-N"] = function () { handle.moveFocus(1); }; + } + + var custom = completion.options.customKeys; + var ourMap = custom ? {} : baseMap; + function addBinding(key, val) { + var bound; + if (typeof val != "string") + bound = function (cm) { return val(cm, handle); }; + // This mechanism is deprecated + else if (baseMap.hasOwnProperty(val)) + bound = baseMap[val]; + else + bound = val; + ourMap[key] = bound; + } + if (custom) + for (var key in custom) if (custom.hasOwnProperty(key)) + addBinding(key, custom[key]); + var extra = completion.options.extraKeys; + if (extra) + for (var key in extra) if (extra.hasOwnProperty(key)) + addBinding(key, extra[key]); + return ourMap; + } + + function getHintElement(hintsElement, el) { + while (el && el != hintsElement) { + if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el; + el = el.parentNode; + } + } + + function Widget(completion, data) { + this.completion = completion; + this.data = data; + this.picked = false; + var widget = this, cm = completion.cm; + var ownerDocument = cm.getInputField().ownerDocument; + var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow; + var hints = this.hints = ownerDocument.createElement("ul"); + var theme = completion.cm.options.theme; + hints.className = "CodeMirror-hints " + theme; + this.selectedHint = data.selectedHint || 0; + + var completions = data.list; + for (var i = 0; i < completions.length; ++i) { + var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i]; + var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS); + if (cur.className != null) className = cur.className + " " + className; + elt.className = className; + if (cur.render) cur.render(elt, data, cur); + else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur))); + elt.hintId = i; + CodeMirror.on(elt, "mouseover", function (e) { + widget.changeActive(this.hintId); + }); + CodeMirror.on(elt, "touchstart", function (e) { + widget.changeActive(this.hintId); + }); + CodeMirror.on(elt, "touchend", function (e) { + var cur = cm.getCursor(); + var self = this; + setTimeout(function () { + cm.focus(); + var cur2 = cm.getCursor(); + if (cur2.line == cur.line && cur2.ch == 0) { + var textLen = self.innerText.length; + cm.setCursor({ line: cur.line, ch: cur.ch + textLen }); + } + }, 10); + }); + } + + var container = completion.options.container || ownerDocument.body; + var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null); + var left = pos.left, top = pos.bottom, below = true; + var offsetLeft = 0, offsetTop = 0; + if (container !== ownerDocument.body) { + // We offset the cursor position because left and top are relative to the offsetParent's top left corner. + var isContainerPositioned = ['absolute', 'relative', 'fixed'].indexOf(parentWindow.getComputedStyle(container).position) !== -1; + var offsetParent = isContainerPositioned ? container : container.offsetParent; + var offsetParentPosition = offsetParent.getBoundingClientRect(); + var bodyPosition = ownerDocument.body.getBoundingClientRect(); + offsetLeft = (offsetParentPosition.left - bodyPosition.left - offsetParent.scrollLeft); + offsetTop = (offsetParentPosition.top - bodyPosition.top - offsetParent.scrollTop); + } + var documentZoom = getDocumentZoom(); + hints.style.fontSize = 16 / documentZoom * 0.9 + "px"; + hints.style.left = (left - offsetLeft) / documentZoom + "px"; + hints.style.top = (top - offsetTop) / documentZoom + "px"; + + // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor. + var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth); + var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight); + container.appendChild(hints); + + var box = completion.options.moveOnOverlap ? hints.getBoundingClientRect() : new DOMRect(); + var scrolls = completion.options.paddingForScrollbar ? hints.scrollHeight > hints.clientHeight + 1 : false; + + // Compute in the timeout to avoid reflow on init + var startScroll; + setTimeout(function () { startScroll = cm.getScrollInfo(); }); + + var overlapY = box.bottom - winH; + if (overlapY > 0) { + var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top); + if (curTop - height > 0) { // Fits above cursor + hints.style.top = (top = pos.top - height - offsetTop) / documentZoom + "px"; + below = false; + } else if (height > winH) { + hints.style.height = (winH - 5) / documentZoom + "px"; + hints.style.top = (top = pos.bottom - box.top - offsetTop) / documentZoom + "px"; + var cursor = cm.getCursor(); + if (data.from.ch != cursor.ch) { + pos = cm.cursorCoords(cursor); + hints.style.left = (left = pos.left - offsetLeft) / documentZoom + "px"; + box = hints.getBoundingClientRect(); + } + } + } + var overlapX = box.right - winW; + if (overlapX > 0) { + if (box.right - box.left > winW) { + hints.style.width = (winW - 5) / documentZoom + "px"; + overlapX -= (box.right - box.left) - winW; + } + hints.style.left = (left = pos.left - overlapX - offsetLeft) / documentZoom + "px"; + } + if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling) + node.style.paddingRight = cm.display.nativeBarWidth / documentZoom + "px" + + cm.addKeyMap(this.keyMap = buildKeyMap(completion, { + moveFocus: function (n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); }, + setFocus: function (n) { widget.changeActive(n); }, + menuSize: function () { return widget.screenAmount(); }, + length: completions.length, + close: function () { completion.close(); }, + pick: function () { widget.pick(); }, + data: data + })); + + if (completion.options.closeOnUnfocus) { + var closingOnBlur; + cm.on("blur", this.onBlur = function () { closingOnBlur = setTimeout(function () { completion.close(); }, 100); }); + cm.on("focus", this.onFocus = function () { clearTimeout(closingOnBlur); }); + } + + cm.on("scroll", this.onScroll = function () { + // fix "startScroll == undfined" + if (!startScroll) return; + var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect(); + var newTop = top + startScroll.top - curScroll.top; + var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop); + if (!below) point += hints.offsetHeight; + if (point <= editor.top || point >= editor.bottom) return completion.close(); + hints.style.top = newTop / documentZoom + "px"; + hints.style.left = (left + startScroll.left - curScroll.left) / documentZoom + "px"; + }); + + CodeMirror.on(hints, "dblclick", function (e) { + var t = getHintElement(hints, e.target || e.srcElement); + if (t && t.hintId != null) { widget.changeActive(t.hintId); widget.pick(); } + }); + + CodeMirror.on(hints, "click", function (e) { + var t = getHintElement(hints, e.target || e.srcElement); + if (t && t.hintId != null) { + widget.changeActive(t.hintId); + if (completion.options.completeOnSingleClick) widget.pick(); + } + }); + + CodeMirror.on(hints, "mousedown", function () { + setTimeout(function () { cm.focus(); }, 20); + }); + + //滑动修复 + CodeMirror.on(hints, "touchmove", function (event) { + if (ios && this.scrollHeight <= this.offsetHeight + 5 && this.scrollWidth <= this.offsetWidth + 5) { + event.preventDefault(); + } + else { + event.stopPropagation(); + } + }); + hints.style.WebkitOverflowScrolling = 'touch'; + + // The first hint doesn't need to be scrolled to on init + var selectedHintRange = this.getSelectedHintRange(); + if (selectedHintRange.from !== 0 || selectedHintRange.to !== 0) { + this.scrollToActive(); + } + + CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]); + return true; + } + + Widget.prototype = { + close: function () { + if (this.completion.widget != this) return; + this.completion.widget = null; + this.hints.parentNode.removeChild(this.hints); + this.completion.cm.removeKeyMap(this.keyMap); + + var cm = this.completion.cm; + if (this.completion.options.closeOnUnfocus) { + cm.off("blur", this.onBlur); + cm.off("focus", this.onFocus); + } + cm.off("scroll", this.onScroll); + }, + + disable: function () { + this.completion.cm.removeKeyMap(this.keyMap); + var widget = this; + this.keyMap = { Enter: function () { widget.picked = true; } }; + this.completion.cm.addKeyMap(this.keyMap); + }, + + pick: function () { + this.completion.pick(this.data, this.selectedHint); + }, + + changeActive: function (i, avoidWrap) { + if (i >= this.data.list.length) + i = avoidWrap ? this.data.list.length - 1 : 0; + else if (i < 0) + i = avoidWrap ? 0 : this.data.list.length - 1; + if (this.selectedHint == i) return; + var node = this.hints.childNodes[this.selectedHint]; + if (node) node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, ""); + node = this.hints.childNodes[this.selectedHint = i]; + node.className += " " + ACTIVE_HINT_ELEMENT_CLASS; + this.scrollToActive() + CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node); + }, + + scrollToActive: function () { + var selectedHintRange = this.getSelectedHintRange(); + var node1 = this.hints.childNodes[selectedHintRange.from]; + var node2 = this.hints.childNodes[selectedHintRange.to]; + var firstNode = this.hints.firstChild; + if (node1.offsetTop < this.hints.scrollTop) + this.hints.scrollTop = node1.offsetTop - firstNode.offsetTop; + else if (node2.offsetTop + node2.offsetHeight > this.hints.scrollTop + this.hints.clientHeight) + this.hints.scrollTop = node2.offsetTop + node2.offsetHeight - this.hints.clientHeight + firstNode.offsetTop; + }, + + screenAmount: function () { + return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1; + }, + + getSelectedHintRange: function () { + var margin = this.completion.options.scrollMargin || 0; + return { + from: Math.max(0, this.selectedHint - margin), + to: Math.min(this.data.list.length - 1, this.selectedHint + margin), + }; + } + }; + + function applicableHelpers(cm, helpers) { + if (!cm.somethingSelected()) return helpers + var result = [] + for (var i = 0; i < helpers.length; i++) + if (helpers[i].supportsSelection) result.push(helpers[i]) + return result + } + + function fetchHints(hint, cm, options, callback) { + if (hint.async) { + hint(cm, callback, options) + } else { + var result = hint(cm, options) + if (result && result.then) result.then(callback) + else callback(result) + } + } + + function resolveAutoHints(cm, pos) { + var helpers = cm.getHelpers(pos, "hint"), words + if (helpers.length) { + var resolved = function (cm, callback, options) { + var app = applicableHelpers(cm, helpers); + function run(i) { + if (i == app.length) return callback(null) + fetchHints(app[i], cm, options, function (result) { + if (result && result.list.length > 0) callback(result) + else run(i + 1) + }) + } + run(0) + } + resolved.async = true + resolved.supportsSelection = true + return resolved + } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) { + return function (cm) { return CodeMirror.hint.fromList(cm, { words: words }) } + } else if (CodeMirror.hint.anyword) { + return function (cm, options) { return CodeMirror.hint.anyword(cm, options) } + } else { + return function () { } + } + } + + CodeMirror.registerHelper("hint", "auto", { + resolve: resolveAutoHints }); -})(); \ No newline at end of file + + CodeMirror.registerHelper("hint", "fromList", function (cm, options) { + var cur = cm.getCursor(), token = cm.getTokenAt(cur) + var term, from = CodeMirror.Pos(cur.line, token.start), to = cur + if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) { + term = token.string.substr(0, cur.ch - token.start) + } else { + term = "" + from = cur + } + var found = []; + for (var i = 0; i < options.words.length; i++) { + var word = options.words[i]; + if (word.slice(0, term.length) == term) + found.push(word); + } + + if (found.length) return { list: found, from: from, to: to }; + }); + + CodeMirror.commands.autocomplete = CodeMirror.showHint; + + var defaultOptions = { + hint: CodeMirror.hint.auto, + completeSingle: true, + alignWithWord: true, + closeCharacters: /[\s()\[\]{};:>,]/, + closeOnPick: true, + closeOnUnfocus: true, + updateOnCursorActivity: true, + completeOnSingleClick: true, + container: null, + customKeys: null, + extraKeys: null, + paddingForScrollbar: true, + moveOnOverlap: true, + }; + + CodeMirror.defineOption("hintOptions", null); +})(); + +export default CodeMirror; \ No newline at end of file diff --git a/node_modules/noname-typings/package.json b/node_modules/noname-typings/package.json index ead474fd1..9ee543937 100644 --- a/node_modules/noname-typings/package.json +++ b/node_modules/noname-typings/package.json @@ -1,6 +1,6 @@ { "name": "noname-typings", - "version": "2023.12.30", + "version": "2023.12.31", "description": "Noname typings, mainly for showing type hints when creating extensions of the Sanguosha-like game Noname.", "repository": { "type": "git", diff --git a/node_modules/noname-typings/type.d.ts b/node_modules/noname-typings/type.d.ts index 60c74aa57..d9ab34305 100644 --- a/node_modules/noname-typings/type.d.ts +++ b/node_modules/noname-typings/type.d.ts @@ -30,4 +30,10 @@ declare type Dialog = import('../../noname/library/index.js').Dialog; declare type GameEvent = import('../../noname/library/index.js').GameEvent; declare type GameEventPromise = import('../../noname/library/index.js').GameEventPromise; declare type Player = import('../../noname/library/index.js').Player; -declare type VCard = import('../../noname/library/index.js').VCard; \ No newline at end of file +declare type VCard = import('../../noname/library/index.js').VCard; + +declare type Video = import('../../noname/game/index.js').Video; +declare type Videos = import('../../noname/game/index.js').Videos; +declare type History = import('../../noname/game/index.js').History; + +declare type CodeMirror = typeof import('../../game/codemirror.js').default; \ No newline at end of file diff --git a/node_modules/noname-typings/windowEx.d.ts b/node_modules/noname-typings/windowEx.d.ts index 1380e226d..32731f48f 100644 --- a/node_modules/noname-typings/windowEx.d.ts +++ b/node_modules/noname-typings/windowEx.d.ts @@ -7,7 +7,9 @@ declare interface Window { version: string, update: string, changeLog: string[], - files: string[] + files: string[], + players?: string[], + cards?: string[], } /** 游戏配置 */ @@ -25,7 +27,7 @@ declare interface Window { noname_skin_list?: SMap; /** codeMirror,一个代码编辑器库 */ - CodeMirror: any; + CodeMirror: CodeMirror; resetGameTimeout: number; @@ -66,4 +68,15 @@ declare interface Window { get: Get; ai: AI; } + + initReadWriteFunction?(game = ({ + download: () => any, + readFile: () => any, + readFileAsText: () => any, + writeFile: () => any, + removeFile: () => any, + getFileList: () => any, + ensureDirectory: () => any, + createDir: () => any, + })): void; } diff --git a/noname/ai/index.js b/noname/ai/index.js index a702b3134..252ac75ba 100644 --- a/noname/ai/index.js +++ b/noname/ai/index.js @@ -9,8 +9,8 @@ import { Uninstantable } from "../util/index.js"; export class Basic extends Uninstantable { /** * @param { ( - * button: import('../library/index.js').Button, - * buttons?: import('../library/index.js').Button[] + * button: Button, + * buttons?: Button[] * ) => number } check */ static chooseButton(check) { @@ -65,8 +65,8 @@ export class Basic extends Uninstantable { } /** * @param { ( - * card?: import('../library/index.js').Card, - * cards?: import('../library/index.js').Card[] + * card?: Card, + * cards?: Card[] * ) => number } check * @returns { boolean | undefined } */ @@ -143,8 +143,8 @@ export class Basic extends Uninstantable { } /** * @param { ( - * target?: import('../library/index.js').Player, - * targets?: import('../library/index.js').Player[] + * target?: Player, + * targets?: Player[] * ) => number } check */ static chooseTarget(check) { diff --git a/noname/game/index.js b/noname/game/index.js index b06a9e9ba..08ac4de69 100644 --- a/noname/game/index.js +++ b/noname/game/index.js @@ -1,10 +1,10 @@ /** * @typedef {{ - * cardMove:(import('../library/index.js').GameEventPromise)[], - * custom: (import('../library/index.js').GameEventPromise)[], - * useCard: (import('../library/index.js').GameEventPromise)[], - * changeHp: (import('../library/index.js').GameEventPromise)[], - * everything: (import('../library/index.js').GameEventPromise)[] + * cardMove:GameEventPromise[], + * custom: GameEventPromise[], + * useCard: GameEventPromise[], + * changeHp: GameEventPromise[], + * everything: GameEventPromise[] * }} History * @typedef { { type: string, player?: string, content?: string | any[], delay: number } } Video * @typedef { { mode: string, name: string[], name1: string, name2?: string, time: number, video: Video, win: boolean } } Videos @@ -23,16 +23,16 @@ export class Game extends Uninstantable { static onlineID = null; static onlineKey = null; /** - * @type {import('../library/index.js').Player[]} + * @type {Player[]} */ static players = []; /** - * @type {import('../library/index.js').Player[]} + * @type {Player[]} */ static dead = []; static imported = []; /** - * @type { { [key: string]: import('../library/index.js').Player } } + * @type { { [key: string]: Player } } */ static playerMap = {}; static phaseNumber = 0; @@ -664,8 +664,8 @@ export class Game extends Uninstantable { } /** * 为牌添加知情者 - * @param { import('../library/index.js').Card[] | import('../library/index.js').Card } cards - * @param { import('../library/index.js').Player[] } players + * @param { Card[] | Card } cards + * @param { Player[] } players */ static addCardKnower(cards, players) { if (get.itemtype(cards) == 'card') { @@ -677,7 +677,7 @@ export class Game extends Uninstantable { } /** * 移除牌的所有知情者。 - * @param { import('../library/index.js').Card[] | import('../library/index.js').Card } cards + * @param { Card[] | Card } cards */ static clearCardKnowers(cards) { // @ts-ignore @@ -775,8 +775,8 @@ export class Game extends Uninstantable { /** * @template { keyof History } T * @param { T } key - * @param { (event: import('../library/index.js').GameEventPromise) => boolean } filter - * @param { import('../library/index.js').GameEventPromise } [last] + * @param { (event: GameEventPromise) => boolean } filter + * @param { GameEventPromise } [last] * @returns { boolean } */ static hasGlobalHistory(key, filter, last) { @@ -799,8 +799,8 @@ export class Game extends Uninstantable { /** * @template { keyof History } T * @param { T } key - * @param { (event: import('../library/index.js').GameEventPromise) => boolean } filter - * @param { import('../library/index.js').GameEventPromise } [last] + * @param { (event: GameEventPromise) => boolean } filter + * @param { GameEventPromise } [last] * @returns { void } */ static checkGlobalHistory(key, filter, last) { @@ -828,8 +828,8 @@ export class Game extends Uninstantable { * @template { keyof History } T * @overload * @param { T } key - * @param { (event: import('../library/index.js').GameEventPromise) => boolean } [filter] - * @param { import('../library/index.js').GameEventPromise } [last] + * @param { (event: GameEventPromise) => boolean } [filter] + * @param { GameEventPromise } [last] * @returns { History[T] } */ static getGlobalHistory(key, filter, last) { @@ -850,8 +850,8 @@ export class Game extends Uninstantable { /** * @template { keyof History } T * @param { T } key - * @param { (event: import('../library/index.js').GameEventPromise) => boolean } filter - * @param { import('../library/index.js').GameEventPromise } [last] + * @param { (event: GameEventPromise) => boolean } filter + * @param { GameEventPromise } [last] * @returns { boolean } */ static hasAllGlobalHistory(key, filter, last) { @@ -874,8 +874,8 @@ export class Game extends Uninstantable { /** * @template { keyof History } T * @param { T } key - * @param { (event: import('../library/index.js').GameEventPromise) => boolean } filter - * @param { import('../library/index.js').GameEventPromise } [last] + * @param { (event: GameEventPromise) => boolean } filter + * @param { GameEventPromise } [last] * @returns { void } */ static checkAllGlobalHistory(key, filter, last) { @@ -905,8 +905,8 @@ export class Game extends Uninstantable { * @template { keyof History } T * @overload * @param { T } key - * @param { (event: import('../library/index.js').GameEventPromise) => boolean } [filter] - * @param { import('../library/index.js').GameEventPromise } [last] + * @param { (event: GameEventPromise) => boolean } [filter] + * @param { GameEventPromise } [last] * @returns { History[T] } */ static getAllGlobalHistory(key, filter, last) { @@ -937,13 +937,13 @@ export class Game extends Uninstantable { */ /** * @overload - * @param { import('../library/index.js').Card } cards - * @returns { import('../library/index.js').GameEventPromise } + * @param { Card } cards + * @returns { GameEventPromise } */ /** * @overload - * @param {import('../library/index.js').Card[]} cards - * @returns { import('../library/index.js').GameEventPromise } + * @param {Card[]} cards + * @returns { GameEventPromise } */ static cardsDiscard(cards) { /** @type { 'cards' | 'card' | void } */ @@ -965,13 +965,13 @@ export class Game extends Uninstantable { */ /** * @overload - * @param { import('../library/index.js').Card } cards - * @returns { import('../library/index.js').GameEventPromise } + * @param { Card } cards + * @returns { GameEventPromise } */ /** * @overload - * @param {import('../library/index.js').Card[]} cards - * @returns { import('../library/index.js').GameEventPromise } + * @param {Card[]} cards + * @returns { GameEventPromise } */ static cardsGotoOrdering(cards) { /** @type { 'cards' | 'card' | void } */ @@ -989,15 +989,15 @@ export class Game extends Uninstantable { */ /** * @overload - * @param { import('../library/index.js').Card } cards + * @param { Card } cards * @param { 'toRenku' | false } [bool] 为false时不触发trigger，为'toRenku'时牌放到仁库 - * @returns { import('../library/index.js').GameEventPromise } + * @returns { GameEventPromise } */ /** * @overload - * @param {import('../library/index.js').Card[]} cards + * @param {Card[]} cards * @param { 'toRenku' | false } [bool] 为false时不触发trigger，为'toRenku'时牌放到仁库 - * @returns { import('../library/index.js').GameEventPromise } + * @returns { GameEventPromise } */ static cardsGotoSpecial(cards, bool) { /** @type { 'cards' | 'card' | void } */ @@ -1014,8 +1014,8 @@ export class Game extends Uninstantable { /** * * @param {...( - * import('../library/index.js').Card[] | - * import('../library/index.js').Card | + * Card[] | + * Card | * Function | * 'insert' | 'washCard' | 'triggeronly' | * [string, any] @@ -1024,7 +1024,7 @@ export class Game extends Uninstantable { */ static cardsGotoPile(...args) { /** - * @type { import('../library/index.js').Card[] } + * @type { Card[] } */ const cards = []; const next = game.createEvent('cardsGotoPile'); @@ -1060,7 +1060,7 @@ export class Game extends Uninstantable { return next; } /** - * @param { import('../library/index.js').GameEventPromise } event + * @param { GameEventPromise } event */ static $cardsGotoPile(event) { const cards = event.cards; @@ -1115,7 +1115,7 @@ export class Game extends Uninstantable { /** * * @param { string } url - * @param { import('../library/index.js').Player } [player] + * @param { Player } [player] */ static changeLand(url, player) { game.addVideo('changeLand', player, url); @@ -1219,7 +1219,7 @@ export class Game extends Uninstantable { } } /** - * @param {...(import('../library/index.js').Player[] | import('../library/index.js').Player)} args + * @param {...(Player[] | Player)} args */ static replaceHandcards(...args) { var next = game.createEvent('replaceHandcards'); @@ -1696,7 +1696,7 @@ export class Game extends Uninstantable { * @typedef {[string,number]|string|number|boolean} audioInfo * @typedef {{audio: audioInfo, audioname?:string[], audioname2?:{[playerName: string]: audioInfo}}} skillInfo * @param { string } skill 技能名 - * @param { import('../library/index.js').Player | string } [player] 角色/角色名 + * @param { Player | string } [player] 角色/角色名 * @param { skillInfo | audioInfo } [skillInfo] 预设的skillInfo/audioInfo(转为skillInfo)，覆盖lib.skill[skill] * @returns { string[] } 语音地址列表 * @example @@ -1829,10 +1829,10 @@ export class Game extends Uninstantable { /** * * @param { string } skill - * @param { import('../library/index.js').Player | string } player + * @param { Player | string } player * @param { boolean } [directaudio] * @param { boolean } [nobroadcast] - * @param { import('../library/index.js').['lib']['skill'] } [skillInfo] + * @param { ['lib']['skill'] } [skillInfo] * @returns */ static trySkillAudio(skill, player, directaudio, nobroadcast, skillInfo) { @@ -1907,8 +1907,8 @@ export class Game extends Uninstantable { ui.window.appendChild(audio); } /** - * @param { string | import('../library/index.js').Card } card - * @param { import('../library/index.js').Player | import('../library/index.js').Sex } sex + * @param { string | Card } card + * @param { Player | Sex } sex */ static playCardAudio(card, sex) { if (typeof card === 'string') { @@ -1978,12 +1978,12 @@ export class Game extends Uninstantable { /** * @param { string } type * @param {( - * lib: import('../library/index.js')['Library'], + * lib: Library, * game: typeof Game, - * ui: import('../ui/index.js')['UI'], - * get: import('../get/index.js')['Get'], - * ai: import('../ai/index.js')['AI'], - * _status: import('../status/index.js')['_status'] + * ui: UI, + * get: Get, + * ai: AI, + * _status: Status * ) => any } content * @param {*} [url] * @returns @@ -4515,8 +4515,8 @@ export class Game extends Uninstantable { /** * @param { string } name * @param { string } skill - * @param { import('../library/index.js').Player } player - * @param { import('../library/index.js').GameEventPromise } event + * @param { Player } player + * @param { GameEventPromise } event */ static createTrigger(name, skill, player, event) { let info = get.info(skill); @@ -4537,7 +4537,7 @@ export class Game extends Uninstantable { * * @param { string } name * @param { false } [trigger] - * @param { import('../library/index.js').GameEventPromise } [triggerEvent] + * @param { GameEventPromise } [triggerEvent] */ static createEvent(name, trigger, triggerEvent) { const next = (new lib.element.GameEvent(name, trigger)).toPromise(); @@ -4546,7 +4546,7 @@ export class Game extends Uninstantable { } /** * @param { string } name - * @param { { extension: string, sex: import('../library/index.js').Sex, group: string, hp: string | number, skills?: string[], tags?: any[], translate: string } } information + * @param { { extension: string, sex: Sex, group: string, hp: string | number, skills?: string[], tags?: any[], translate: string } } information */ static addCharacter(name, information) { const extensionName = _status.extension || information.extension, character = [ @@ -4568,7 +4568,7 @@ export class Game extends Uninstantable { lib.translate[`${packName}_character_config`] = extensionName; } /** - * @param { { mode?: string, forbid?: any, character: { [key: string]: import('../library/index.js').Character }, skill: { [key: string]: object }, [key: string]: any } } pack + * @param { { mode?: string, forbid?: any, character: { [key: string]: Character }, skill: { [key: string]: object }, [key: string]: any } } pack * @param { string } [packagename] */ static addCharacterPack(pack, packagename) { @@ -4624,7 +4624,7 @@ export class Game extends Uninstantable { } /** * @param { string } name - * @param { import('../library/index.js').Card } info + * @param { Card } info * @param { { extension: string, translate: string, description: string, number?: number, color?: string } } info2 */ static addCard(name, info, info2) { @@ -4671,7 +4671,7 @@ export class Game extends Uninstantable { lib.cardPack[packname].push(name); } /** - * @param { { extension: string, mode?: string[], forbid?: string[], list: any[], card: {[key: string]: import('../library/index.js').Card}, skill: { [key: string]: object } } } pack + * @param { { extension: string, mode?: string[], forbid?: string[], list: any[], card: {[key: string]: Card}, skill: { [key: string]: object } } } pack * @param { string } [packagename] */ static addCardPack(pack, packagename) { @@ -4783,7 +4783,7 @@ export class Game extends Uninstantable { } /** * @param { string } skill - * @param { import('../library/index.js').Player } [player] + * @param { Player } [player] */ static addGlobalSkill(skill, player) { let info = lib.skill[skill]; @@ -4930,11 +4930,11 @@ export class Game extends Uninstantable { } /** * @overload - * @returns { import('../library/index.js').Card } + * @returns { Card } */ /** * @overload - * @param { import('../library/index.js').Card | string } name + * @param { Card | string } name * @param { string } suit * @param { number } number * @param { string } nature @@ -4984,11 +4984,11 @@ export class Game extends Uninstantable { } /** * @overload - * @returns { import('../library/index.js').Card } + * @returns { Card } */ /** * @overload - * @param { import('../library/index.js').Card | string } name + * @param { Card | string } name * @param { string } suit * @param { number } number * @param { string } nature @@ -5655,7 +5655,7 @@ export class Game extends Uninstantable { } } /** - * @type { Map> } + * @type { Map> } * * 以Promise储存异步事件的执行链，使async content调用事件时无需必须使用await * @@ -5663,7 +5663,7 @@ export class Game extends Uninstantable { */ static executingAsyncEventMap = new Map(); /** - * @param { import('../library/index.js').GameEventPromise } [belongAsyncEvent] + * @param { GameEventPromise } [belongAsyncEvent] */ static async loop(belongAsyncEvent) { if (belongAsyncEvent) { @@ -5828,7 +5828,7 @@ export class Game extends Uninstantable { } } /** - * @param { import('../library/index.js').GameEventPromise } [belongAsyncEvent] + * @param { GameEventPromise } [belongAsyncEvent] */ static runContent(belongAsyncEvent) { return new Promise(resolve => { @@ -6033,7 +6033,7 @@ export class Game extends Uninstantable { return game.asyncDelay(time, time2); } /** - * @param { import('../library/index.js').GameEventPromise } event + * @param { GameEventPromise } [event] */ static check(event) { let i, j, range; @@ -6520,8 +6520,8 @@ export class Game extends Uninstantable { _status.dragline.length = 0; } /** - * @param { import('../library/index.js').Player } player1 - * @param { import('../library/index.js').Player } player2 + * @param { Player } player1 + * @param { Player } player2 * @param { boolean } [prompt] * @param { boolean } [behind] * @param { boolean } [noanimate] @@ -6585,8 +6585,8 @@ export class Game extends Uninstantable { } } /** - * @param { import('../library/index.js').Player } player1 - * @param { import('../library/index.js').Player } [player2] + * @param { Player } player1 + * @param { Player } [player2] */ static swapPlayer(player, player2) { let players = game.players.concat(game.dead) @@ -6655,7 +6655,7 @@ export class Game extends Uninstantable { }, 100, players); } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player */ static swapControl(player) { if (player == game.me) return; @@ -6701,7 +6701,7 @@ export class Game extends Uninstantable { } } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player */ static findNext(player) { let players = get.players(lib.sort.position); @@ -6943,7 +6943,7 @@ export class Game extends Uninstantable { next.setContent('loadPackage'); } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player */ static phaseLoop(player) { let next = game.createEvent('phaseLoop'); @@ -6952,7 +6952,7 @@ export class Game extends Uninstantable { next.setContent('phaseLoop'); } /** - * @param { import('../library/index.js').Player } [player] + * @param { Player } [player] */ static gameDraw(player, num = 4) { let next = game.createEvent('gameDraw'); @@ -7488,8 +7488,8 @@ export class Game extends Uninstantable { }, game.roundNumber, ui.cardPile.firstChild, ui.cardPile.childElementCount); } /** - * @param { import('../library/index.js').Player[] } players - * @param { number | number[] | (player: import('../library/index.js').Player) => number } num + * @param { Player[] } players + * @param { number | number[] | (player: Player) => number } num * @param { { drawDeck: boolean } } [drawDeck] * @param { boolean } [bottom] */ @@ -7505,8 +7505,8 @@ export class Game extends Uninstantable { }) } /** - * @param { import('../library/index.js').Player[] } players - * @param { number | number[] | (player: import('../library/index.js').Player) => number } num + * @param { Player[] } players + * @param { number | number[] | (player: Player) => number } num * @param { { drawDeck: boolean } } [drawDeck] */ static asyncDrawAuto(players, num, drawDeck) { @@ -7889,10 +7889,10 @@ export class Game extends Uninstantable { }); } /** - * @param { import('../library/index.js').Player } player - * @param { string | import('../library/index.js').Card[] } card - * @param { import('../library/index.js').Player[] } [targets] - * @param { import('../library/index.js').GameEventPromise } [event] + * @param { Player } player + * @param { string | Card[] } card + * @param { Player[] } [targets] + * @param { GameEventPromise } [event] * @param { boolean } [forced] * @param { string } [logvid] */ @@ -8454,7 +8454,7 @@ export class Game extends Uninstantable { return player; } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player */ static triggerEnter(player) { const next = game.createEvent('enterGame', false); @@ -8465,7 +8465,7 @@ export class Game extends Uninstantable { return next; } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player */ static restorePlayer(player) { if (game.players.includes(player) || game.dead.includes(player)) return; @@ -8485,7 +8485,7 @@ export class Game extends Uninstantable { return player; } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player */ static removePlayer(player) { if (_status.roundStart == player) _status.roundStart = player.next || player.getNext() || game.players[0]; @@ -8517,7 +8517,7 @@ export class Game extends Uninstantable { return player; } /** - * @param { import('../library/index.js').Player } player + * @param { Player } player * @param { string } [character] * @param { string } [character2] */ @@ -8587,7 +8587,7 @@ export class Game extends Uninstantable { } /** * @param { string[] } skills - * @param { import('../library/index.js').Player } player + * @param { Player } player * @param { string[] } exclude */ static filterSkills(skills, player, exclude) { @@ -8623,17 +8623,17 @@ export class Game extends Uninstantable { }) } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [includeOut] */ static hasPlayer(func, includeOut) { return game.players.some(value => (includeOut || !value.isOut()) && func(value)) } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [includeOut] */ static hasPlayer2(func, includeOut) { return game.players.concat(game.dead).some(value => (includeOut || !value.isOut()) && func(value)) } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [includeOut] */ static countPlayer(func, includeOut) { @@ -8647,7 +8647,7 @@ export class Game extends Uninstantable { }, 0); } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [includeOut] */ static countPlayer2(func, includeOut) { @@ -8662,14 +8662,14 @@ export class Game extends Uninstantable { } /** * @overload - * @returns { import('../library/index.js').Player[] } + * @returns { Player[] } */ /** * @overload - * @param { (player: import('../library/index.js').Player) => boolean } func - * @param { import('../library/index.js').Player[] } [list] + * @param { (player: Player) => boolean } func + * @param { Player[] } [list] * @param { boolean } [includeOut] - * @returns { import('../library/index.js').Player[] } + * @returns { Player[] } */ static filterPlayer(func, list, includeOut) { if (!Array.isArray(list)) list = []; @@ -8678,14 +8678,14 @@ export class Game extends Uninstantable { } /** * @overload - * @returns { import('../library/index.js').Player[] } + * @returns { Player[] } */ /** * @overload - * @param { (player: import('../library/index.js').Player) => boolean } func - * @param { import('../library/index.js').Player[] } [list] + * @param { (player: Player) => boolean } func + * @param { Player[] } [list] * @param { boolean } [includeOut] - * @returns { import('../library/index.js').Player[] } + * @returns { Player[] } */ static filterPlayer2(func, list, includeOut) { if (!Array.isArray(list)) list = []; @@ -8693,17 +8693,17 @@ export class Game extends Uninstantable { return list.addArray(game.players.concat(game.dead).filter(value => (includeOut || !value.isOut()) && func(value))); } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [includeOut] */ static findPlayer(func, includeOut) { return game.players.find(value => (includeOut || !value.isOut()) && func(value)) || null } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [includeOut] */ static findPlayer2(func, includeOut) { return game.players.concat(game.dead).find(value => (includeOut || !value.isOut()) && func(value)) || null } /** - * @param { (player: import('../library/index.js').Player) => boolean } func + * @param { (player: Player) => boolean } func * @param { boolean } [all] */ static findCards(func, all) { diff --git a/noname/get/index.js b/noname/get/index.js index 70f45b1b3..9fe7e14a9 100644 --- a/noname/get/index.js +++ b/noname/get/index.js @@ -9,8 +9,8 @@ import { GNC as gnc } from '../gnc/index.js'; export class Is extends Uninstantable { /** * 判断是否为进攻坐骑 - * @param {import("../library/index.js").Card | import("../library/index.js").VCard} card - * @param {false | import("../library/index.js").Player} [player] + * @param {Card | VCard} card + * @param {false | Player} [player] * @returns {boolean} */ static attackingMount(card, player) { @@ -25,8 +25,8 @@ export class Is extends Uninstantable { } /** * 判断是否为防御坐骑 - * @param {import("../library/index.js").Card | import("../library/index.js").VCard} card - * @param {false | import("../library/index.js").Player} [player] + * @param {Card | VCard} card + * @param {false | Player} [player] * @returns {boolean} */ static defendingMount(card, player) { @@ -1833,12 +1833,12 @@ export class Get extends Uninstantable { */ /** * @overload - * @param { import('../library/index.js').Player[] } obj + * @param { Player[] } obj * @returns { 'players' } */ /** * @overload - * @param { import('../library/index.js').Card[] } obj + * @param { Card[] } obj * @returns { 'cards' } */ /** @@ -1853,27 +1853,27 @@ export class Get extends Uninstantable { */ /** * @overload - * @param { import('../library/index.js').Button } obj + * @param { Button } obj * @returns { 'button' } */ /** * @overload - * @param { import('../library/index.js').Card } obj + * @param { Card } obj * @returns { 'card' } */ /** * @overload - * @param { import('../library/index.js').Player } obj + * @param { Player } obj * @returns { 'player' } */ /** * @overload - * @param { import('../library/index.js').Dialog } obj + * @param { Dialog } obj * @returns { 'dialog' } */ /** * @overload - * @param { import('../library/index.js').GameEvent | import('../library/index.js').GameEventPromise } obj + * @param { GameEvent | GameEventPromise } obj * @returns { 'event' } */ static itemtype(obj) { @@ -1954,8 +1954,8 @@ export class Get extends Uninstantable { } /** * - * @param {import("../library/index.js").Card | import("../library/index.js").VCard} card - * @param {false | import("../library/index.js").Player} [player] + * @param {Card | VCard} card + * @param {false | Player} [player] * @returns {string} */ static name(card, player) { @@ -1968,8 +1968,8 @@ export class Get extends Uninstantable { return card.name; } /** - * @param {import("../library/index.js").Card | import("../library/index.js").VCard | Card[] | VCard[]} card - * @param {false | import("../library/index.js").Player} [player] + * @param {Card | VCard | Card[] | VCard[]} card + * @param {false | Player} [player] * @returns {string} */ static suit(card, player) { @@ -1993,8 +1993,8 @@ export class Get extends Uninstantable { } } /** - * @param {import("../library/index.js").Card | import("../library/index.js").VCard | Card[] | VCard[]} card - * @param {false | import("../library/index.js").Player} [player] + * @param {Card | VCard | Card[] | VCard[]} card + * @param {false | Player} [player] * @returns {string} */ static color(card, player) { @@ -2022,8 +2022,8 @@ export class Get extends Uninstantable { } } /** - * @param {import("../library/index.js").Card | import("../library/index.js").VCard} card - * @param {false | import("../library/index.js").Player} [player] + * @param {Card | VCard} card + * @param {false | Player} [player] * @returns {number} */ static number(card, player) { @@ -2047,8 +2047,8 @@ export class Get extends Uninstantable { } /** * 返回一张杀的属性。如有多种属性则用`lib.natureSeparator`分割开来。例：火雷【杀】的返回值为`fire|thunder` - * @param {string | string[] | import("../library/index.js").Card | import("../library/index.js").VCard} card - * @param {false | import("../library/index.js").Player} [player] + * @param {string | string[] | Card | VCard} card + * @param {false | Player} [player] * @returns {string} */ static nature(card, player) { @@ -2066,7 +2066,7 @@ export class Get extends Uninstantable { /** * 返回包含所有属性的数组 * @param {string[] | string} card - * @param {false | import("../library/index.js").Player} [player] + * @param {false | Player} [player] * @returns {string[]} */ static natureList(card, player) { @@ -2231,11 +2231,11 @@ export class Get extends Uninstantable { * @template T * @overload * @param {T} key - * @returns {import("../library/index.js").GameEvent[T]} + * @returns {GameEvent[T]} */ /** * @overload - * @returns {import("../library/index.js").GameEvent} + * @returns {GameEvent} */ static event(key) { return key ? _status.event[key] : _status.event } static player() { return _status.event.player } @@ -2463,8 +2463,8 @@ export class Get extends Uninstantable { return result; } /** - * @param {((a: import('../library/index.js').Button, b: import('../library/index.js').Button) => number)} [sort] 排序函数 - * @returns { import('../library/index.js').Button[] } + * @param {((a: Button, b: Button) => number)} [sort] 排序函数 + * @returns { Button[] } */ static selectableButtons(sort) { if (!_status.event.player) return []; @@ -2482,8 +2482,8 @@ export class Get extends Uninstantable { return selectable; } /** - * @param {((a: import('../library/index.js').Card, b: import('../library/index.js').Card) => number)} [sort] 排序函数 - * @returns { import('../library/index.js').Card[] } + * @param {((a: Card, b: Card) => number)} [sort] 排序函数 + * @returns { Card[] } */ static selectableCards(sort) { if (!_status.event.player) return []; @@ -2578,8 +2578,8 @@ export class Get extends Uninstantable { return list; } /** - * @param {((a: import('../library/index.js').Player, b: import('../library/index.js').Player) => number)} [sort] 排序函数 - * @returns { import('../library/index.js').Player[] } + * @param {((a: Player, b: Player) => number)} [sort] 排序函数 + * @returns { Player[] } */ static selectableTargets(sort) { var selectable = []; diff --git a/noname/init/index.js b/noname/init/index.js index a4c1d60ff..b99cc3c0c 100644 --- a/noname/init/index.js +++ b/noname/init/index.js @@ -59,16 +59,16 @@ export async function boot() { setWindowListener(); // 无名杀更新日志 - if (Reflect.has(window, 'noname_update')) { - Reflect.set(lib, 'version', Reflect.get(window, 'noname_update').version); - lib.changeLog = Reflect.get(window, 'noname_update').changeLog; - if (Reflect.get(window, 'noname_update').players) { - lib.changeLog.push('players://' + JSON.stringify(Reflect.get(window, 'noname_update').players)); + if (window.noname_update) { + Reflect.set(lib, 'version', window.noname_update.version); + lib.changeLog = window.noname_update.changeLog; + if (window.noname_update.players) { + lib.changeLog.push('players://' + JSON.stringify(window.noname_update.players)); } - if (Reflect.get(window, 'noname_update').cards) { - lib.changeLog.push('cards://' + JSON.stringify(Reflect.get(window, 'noname_update').cards)); + if (window.noname_update.cards) { + lib.changeLog.push('cards://' + JSON.stringify(window.noname_update.cards)); } - Reflect.deleteProperty(window, 'noname_update'); + delete window.noname_update; } // 确认手机端平台 const noname_inited = localStorage.getItem('noname_inited'); @@ -105,7 +105,7 @@ export async function boot() { Reflect.set(lib, 'path', (await import('../library/path.js')).default); //为其他自定义平台提供文件读写函数赋值的一种方式。 //但这种方式只能修改game的文件读写函数。 - if (Reflect.has(window, 'initReadWriteFunction')) { + if (typeof window.initReadWriteFunction == 'function') { const g = {}; const ReadWriteFunctionName = ['download', 'readFile', 'readFileAsText', 'writeFile', 'removeFile', 'getFileList', 'ensureDirectory', 'createDir']; ReadWriteFunctionName.forEach(prop => { @@ -120,7 +120,8 @@ export async function boot() { } }); }); - Reflect.get(window, 'initReadWriteFunction')(g); + // @ts-ignore + window.initReadWriteFunction(g); } window.onbeforeunload = function () { if (config.get('confirm_exit') && !_status.reloading) { @@ -177,9 +178,11 @@ export async function boot() { if (config.get('debug')) { await lib.init.promises.js(`${lib.assetURL}game`, 'asset'); - lib.skin = Reflect.get(window, 'noname_skin_list'); - Reflect.deleteProperty(window, 'noname_skin_list'); - Reflect.deleteProperty(window, 'noname_asset_list'); + if (window.noname_skin_list) { + lib.skin = window.noname_skin_list; + delete window.noname_skin_list; + delete window.noname_asset_list; + } } if (Reflect.get(window, 'isNonameServer')) diff --git a/noname/library/element/gameEvent.js b/noname/library/element/gameEvent.js index 4ede78fd2..51705b042 100644 --- a/noname/library/element/gameEvent.js +++ b/noname/library/element/gameEvent.js @@ -7,7 +7,7 @@ import { UI as ui } from '../../ui/index.js'; import { AsyncFunction } from '../../util/index.js'; export class GameEvent { - /** @type { import('../index.js').GameEventPromise } */ + /** @type { GameEventPromise } */ #promise; /** * @param {string} [name] @@ -26,11 +26,11 @@ export class GameEvent { this.step = 0; this.finished = false; /** - * @type {(import('../index.js').GameEventPromise)[]} + * @type {GameEventPromise[]} */ this.next = []; /** - * @type {(import('../index.js').GameEventPromise)[]} + * @type {GameEventPromise[]} */ this.after = []; this.custom = { @@ -301,7 +301,7 @@ export class GameEvent { /** * - * @param {import("../util/index.js").AsyncFunction[] | keyof typeof lib.element.contents} contents + * @param {Function | keyof typeof lib.element.contents} contents * @returns {GameEvent} */ setContents(contents) { @@ -747,7 +747,7 @@ export class GameEvent { /** * 事件转为Promise化 * - * @returns { import('../index.js').GameEventPromise } + * @returns { GameEventPromise } */ toPromise() { if (!this.#promise) { @@ -760,93 +760,93 @@ export class GameEvent { */ typeAnnotation() { /** - * @type {import('../index.js').Player} + * @type { Player } */ // @ts-ignore this.source; /** - * @type {import('../index.js').Player} + * @type { Player } */ // @ts-ignore this.player; /** - * @type {import('../index.js').Player} + * @type { Player } */ // @ts-ignore this.target; /** - * @type {import('../index.js').Player[]} + * @type { Player[] } */ // @ts-ignore this.targets; /** - * @type {import('../index.js').Card} + * @type { Card } */ // @ts-ignore this.card; /** - * @type {import('../index.js').Card[]} + * @type { Card[] } */ // @ts-ignore this.cards; /** - * @type {string} + * @type { string } */ this.skill; /** - * @type {boolean} + * @type { boolean } */ this.forced; /** - * @type {number} + * @type { number } */ this.num; /** - * @type {GameEvent} + * @type { GameEvent } */ // @ts-ignore this._trigger; /** - * @type {Record} + * @type { Record } */ this._result; /** - * @type {number} + * @type { number } */ // @ts-ignore this.baseDamage; /** - * @type {import('../index.js').Player} + * @type { Player } */ // @ts-ignore this.customSource; /** - * @type {number} + * @type { number } */ // @ts-ignore this.extraDamage; /** - * @type {string} + * @type { string } */ // @ts-ignore this.nature; /** - * @type {boolean} + * @type { boolean } */ // @ts-ignore this.notrigger; /** - * @type {number} + * @type { number } */ // @ts-ignore this.original_num; /** - * @type {boolean} + * @type { boolean } */ // @ts-ignore this.unreal; /** - * @type { import('../index.js').Button[] } + * @type { Button[] } */ // @ts-ignore this.excludeButton; diff --git a/noname/library/element/gameEventPromise.js b/noname/library/element/gameEventPromise.js index 7d5085096..1ab9ec1f9 100644 --- a/noname/library/element/gameEventPromise.js +++ b/noname/library/element/gameEventPromise.js @@ -37,7 +37,7 @@ export class GameEventPromise extends Promise { } #event; /** - * @param { import('./gameEvent.js').GameEvent } event + * @param { GameEvent } event */ constructor(event) { super(resolve => { diff --git a/noname/library/element/player.js b/noname/library/element/player.js index 0b072c4b6..68399a121 100644 --- a/noname/library/element/player.js +++ b/noname/library/element/player.js @@ -2706,9 +2706,9 @@ export class Player extends HTMLDivElement { return list; } /** - * @param {string} [arg1='h'] - * @param {string | Record | ((card: import('../index.js').Card) => boolean)} [arg2] - * @returns {import('../index.js').Card[]} + * @param { string } [arg1='h'] + * @param { string | Record | ((card: Card) => boolean) } [arg2] + * @returns { Card[] } */ getCards(arg1, arg2) { if (typeof arg1 != 'string') { diff --git a/noname/library/element/vcard.js b/noname/library/element/vcard.js index 6cc4ebee1..f4a59fde9 100644 --- a/noname/library/element/vcard.js +++ b/noname/library/element/vcard.js @@ -7,10 +7,10 @@ import { UI as ui } from '../../ui/index.js'; export class VCard { /** - * @param {any} [suitOrCard] - * @param {number | import('./card.js').Card[]} [numberOrCards] - * @param {string} [name] - * @param {string} [nature] + * @param { any } [suitOrCard] + * @param { number | Card[] } [numberOrCards] + * @param { string } [name] + * @param { string } [nature] */ constructor(suitOrCard, numberOrCards, name, nature) { if (Array.isArray(suitOrCard)) { @@ -66,7 +66,7 @@ export class VCard { if (Array.isArray(numberOrCards)) { const noCards = !this.cards; /** - * @type {import('./card.js').Card[]} + * @type { Card[] } */ this.cards = numberOrCards.slice(); if (noCards) { @@ -108,7 +108,7 @@ export class VCard { return get.name(this) != get.name(card); } /** - * @param {Player} player + * @param { Player } player */ hasNature(nature, player) { const natures = get.natureList(this, player); diff --git a/noname/library/index.js b/noname/library/index.js index 3703c1ef8..cdb6dbf20 100644 --- a/noname/library/index.js +++ b/noname/library/index.js @@ -40,7 +40,7 @@ export class Library extends Uninstantable { static updates = []; static canvasUpdates = []; /** - * @type { import('../game/index.js').Video[] } + * @type { Video[] } */ static video = []; static skilllist = []; @@ -54,6 +54,9 @@ export class Library extends Uninstantable { static characterGuozhanFilter = ["mode_guozhan"]; static dynamicTranslate = {}; static cardPack = {}; + /** + * @type { SMap } + */ static skin = {}; static onresize = []; static onphase = []; @@ -88,11 +91,11 @@ export class Library extends Uninstantable { static cardType = {}; static hook = { globalskill: {} }; /** - * @returns {never} + * @returns { never } */ static typeAnnotation() { /** - * @type { import('../game/index.js').Videos[] } + * @type { Videos[] } */ // @ts-ignore this.videos; @@ -6550,7 +6553,9 @@ export class Library extends Uninstantable { } else { if (!window.CodeMirror) { - lib.init.js(lib.assetURL + 'game', 'codemirror', () => lib.codeMirrorReady(node, editor)); + import('../../game/codemirror.js').then(() => { + lib.codeMirrorReady(node, editor); + }); lib.init.css(lib.assetURL + 'layout/default', 'codemirror'); } else { @@ -6642,7 +6647,9 @@ export class Library extends Uninstantable { } else { if (!window.CodeMirror) { - lib.init.js(lib.assetURL + 'game', 'codemirror', () => lib.codeMirrorReady(node, editor)); + import('../../game/codemirror.js').then(() => { + lib.codeMirrorReady(node, editor); + }); lib.init.css(lib.assetURL + 'layout/default', 'codemirror'); } else { @@ -7102,7 +7109,9 @@ export class Library extends Uninstantable { } else { if (!window.CodeMirror) { - lib.init.js(lib.assetURL + 'game', 'codemirror', () => lib.codeMirrorReady(node, editor)); + import('../../game/codemirror.js').then(() => { + lib.codeMirrorReady(node, editor); + }); lib.init.css(lib.assetURL + 'layout/default', 'codemirror'); } else { @@ -8632,16 +8641,16 @@ export class Library extends Uninstantable { /** * @overload * @description 指定的玩家或自己装备指定的牌 - * @param {...Element.Player | string} args 玩家或卡牌名 + * @param {...Player | string} args 玩家或卡牌名 * @returns { void } */ e(...args) { /** - * @type { Element.Card[] } + * @type { Card[] } */ let cards = []; /** - * @type { Element.Player } + * @type { Player } */ let target; for (let i = 0; i < arguments.length; i++) { @@ -8889,7 +8898,7 @@ export class Library extends Uninstantable { }, /** * 下家对你使用一张牌 - * @param {...Element.Player | Element.Player[] | string | Element.VCard } args + * @param {...Player | Player[] | string | VCard } args * * @example * ```js @@ -8973,7 +8982,7 @@ export class Library extends Uninstantable { }, /** * 打印目标玩家的手牌 - * @param { Element.Player } player + * @param { Player } player */ h(player) { console.log(get.translation(player.getCards('h'))); @@ -9032,7 +9041,7 @@ export class Library extends Uninstantable { /** * 给目标立即添加一张手牌 * @param { string } name - * @param { Element.Player } target + * @param { Player } target */ gx(name, target = game.me) { const card = lib.cheat.gn(name); @@ -9051,7 +9060,7 @@ export class Library extends Uninstantable { * 如果lib.card里没有对应卡牌名返回null * * @param { string } name - * @returns { Element.Card } + * @returns { Card } * @example * ```js * // 创建一个梅花杀 @@ -9102,7 +9111,7 @@ export class Library extends Uninstantable { }, /** * 指定的玩家或自己立即获得诸葛连弩，青龙刀，八卦阵，的卢，赤兔，木牛 - * @param {Element.Player} [target] + * @param { Player } [target] */ ge(target) { if (target) { @@ -9146,7 +9155,7 @@ export class Library extends Uninstantable { /** * 自己立刻获取牌堆顶num张牌 * @param { number } [num] - * @param { Element.Player } [target] + * @param { Player } [target] */ d(num = 1, target) { const cards = get.cards(num); @@ -9179,7 +9188,7 @@ export class Library extends Uninstantable { * * 不传入num默认为弃置所有玩家的所有牌 * - * @param { number | Element.Player } [num] + * @param { number | Player } [num] */ t(num) { if (game.players.includes(num)) { diff --git a/noname/status/index.js b/noname/status/index.js index 9377073f8..2847d64d4 100644 --- a/noname/status/index.js +++ b/noname/status/index.js @@ -6,7 +6,7 @@ export const status = { clicked: false, auto: false, /** - * @type {import('../library/index.js').GameEventPromise} + * @type { GameEventPromise } */ // @ts-ignore event: null, @@ -17,9 +17,10 @@ export const status = { dragline: [], dying: [], /** - * @type { import('../game/index.js').History[] } + * @type { History[] } */ globalHistory: [{ + // @ts-ignore cardMove: [], custom: [], useCard: [], @@ -39,7 +40,7 @@ export const status = { /** * @type { string | void } */ - extension:undefined, + extension: undefined, }; export const _status = status; \ No newline at end of file diff --git a/noname/ui/index.js b/noname/ui/index.js index 6baaad5cb..e42192c94 100644 --- a/noname/ui/index.js +++ b/noname/ui/index.js @@ -5081,7 +5081,9 @@ class Create extends Uninstantable { } else { if (!window.CodeMirror) { - lib.init.js(lib.assetURL + 'game', 'codemirror', () => lib.codeMirrorReady(node, editor)); + import('../../game/codemirror.js').then(() => { + lib.codeMirrorReady(node, editor); + }); lib.init.css(lib.assetURL + 'layout/default', 'codemirror'); } else { @@ -5517,7 +5519,9 @@ class Create extends Uninstantable { } else { if (!window.CodeMirror) { - lib.init.js(lib.assetURL + 'game', 'codemirror', () => lib.codeMirrorReady(node, editor)); + import('../../game/codemirror.js').then(() => { + lib.codeMirrorReady(node, editor); + }); lib.init.css(lib.assetURL + 'layout/default', 'codemirror'); } else { @@ -5895,7 +5899,9 @@ class Create extends Uninstantable { } else { if (!window.CodeMirror) { - lib.init.js(lib.assetURL + 'game', 'codemirror', () => lib.codeMirrorReady(node, this.editor)); + import('../../game/codemirror.js').then(() => { + lib.codeMirrorReady(node, editor); + }); lib.init.css(lib.assetURL + 'layout/default', 'codemirror'); } else {