noname/service-worker.js

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/**
* @type { import('typescript') }
*/
var ts;
importScripts('./game/typescript.js');
/**
* @type { import('./game/compiler-sfc.browser.js') }
*/
var sfc;
importScripts('./game/compiler-sfc.browser.js');
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// @ts-ignore
if (typeof ts != 'undefined') {
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console.log(`ts loaded`);
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} else {
console.log(`ts undefined`);
}
// @ts-ignore
if (typeof sfc != 'undefined') {
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console.log(`sfc loaded`);
sfc.registerTS(() => ts);
} else {
console.log(`sfc undefined`);
}
console.log('serviceWorker version 2.3');
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self.addEventListener("install", (event) => {
// The promise that skipWaiting() returns can be safely ignored.
// @ts-ignore
self.skipWaiting();
});
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self.addEventListener("activate", (event) => {
// 当一个 service worker 被初始注册时,页面在下次加载之前不会使用它。 claim() 方法会立即控制这些页面
// @ts-ignore
event.waitUntil(clients.claim());
});
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self.addEventListener('message', event => {
console.log(event.data);
});
/**
* 将vue编译的结果放在这里调用的时候直接返回就好了
*/
const vueFileMap = new Map();
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self.addEventListener('fetch', event => {
// @ts-ignore
const request = event.request;
if (typeof request.url != 'string') return console.log(request);
if (vueFileMap.has(request.url)) {
const rep = new Response(new Blob([vueFileMap.get(request.url)], { type: "text/javascript" }), {
status: 200,
statusText: "OK",
headers: new Headers({
"Content-Type": "text/javascript"
}),
});
event.respondWith(rep);
return;
}
if (!['.ts', '.json', '.vue'].some(ext => request.url.endsWith(ext))) return;
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if (request.url.endsWith('.d.ts')) return;
if (request.url.endsWith('.json')) {
// @ts-ignore
if (!event.request.headers.get('origin')) return;
}
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// 请求ts文件
const res = fetch(request.url, {
method: request.method,
mode: "no-cors",
headers: new Headers({
"Content-Type": "text/plain"
}),
});
// @ts-ignore
event.respondWith(
res.then(res => {
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if (res.status != 200) return res;
console.log('正在编译', request.url);
return res.text().then(text => {
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let js;
if (request.url.endsWith('.json')) {
js = `export default ${text}`;
} else if (request.url.endsWith('.ts')) {
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js = ts.transpile(text, {
module: ts.ModuleKind.ES2015,
target: ts.ScriptTarget.ES2019,
inlineSourceMap: true,
resolveJsonModule: true,
esModuleInterop: true,
}, request.url);
} else if (request.url.endsWith('.vue')) {
const id = Date.now().toString();
const scopeId = `data-v-${id}`;
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// 后续处理sourceMap合并
const { descriptor } = sfc.parse(text, { filename: request.url, sourceMap: true });
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// console.log({ descriptor });
const hasScoped = descriptor.styles.some((s) => s.scoped);
// 编译 script因为可能有 script setup还要进行 css 变量注入
const script = sfc.compileScript(descriptor, {
id: scopeId,
inlineTemplate: true,
templateOptions: {
scoped: hasScoped,
compilerOptions: {
scopeId: hasScoped ? scopeId : undefined,
}
},
});
// 用于存放代码,最后 join('\n') 合并成一份完整代码
const codeList = [];
vueFileMap.set(
request.url + '?type=script',
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// 重写 default
sfc.rewriteDefault(script.content, "__sfc_main__")
.replace(`const __sfc_main__`, `export const __sfc_main__`)
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// import vue重新指向
.replaceAll(`from "vue"`, `from "/game/vue.esm-browser.js"`)
.replaceAll(`from 'vue'`, `from '/game/vue.esm-browser.js'`)
);
codeList.push(`import { __sfc_main__ } from '${request.url}?type=script'`);
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codeList.push(`__sfc_main__.__scopeId = '${scopeId}'`);
// 编译模板,转换成 render 函数
const template = sfc.compileTemplate({
source: descriptor.template.content,
filename: request.url, // 用于错误提示
id: scopeId,
scoped: hasScoped,
compilerOptions: {
scopeId: hasScoped ? scopeId : undefined,
}
});
vueFileMap.set(request.url + '?type=template', template.code
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// .replace(`function render(_ctx, _cache) {`, str => str + 'console.log(_ctx);')
.replaceAll(`from "vue"`, `from "/game/vue.esm-browser.js"`)
.replaceAll(`from 'vue'`, `from '/game/vue.esm-browser.js'`)
);
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codeList.push(`import { render } from '${request.url}?type=template'`);
codeList.push(`__sfc_main__.render = render;`);
codeList.push(`export default __sfc_main__;`);
// 一个 Vue 文件,可能有多个 style 标签
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let styleIndex = 0;
for (const styleBlock of descriptor.styles) {
const styleCode = sfc.compileStyle({
source: styleBlock.content,
id,
filename: request.url,
scoped: styleBlock.scoped,
});
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const varName = `el${ styleIndex }`;
const styleDOM = `let ${ varName } = document.createElement('style');\n${ varName }.innerHTML = \`${styleCode.code}\`;\ndocument.body.append(${ varName });`;
codeList.push(styleDOM);
}
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js = codeList.join('\n');
// console.log(js);
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}
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const rep = new Response(new Blob([js], { type: "text/javascript" }), {
status: 200,
statusText: "OK",
headers: new Headers({
"Content-Type": "text/javascript"
}),
});
return rep;
})
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})
.catch(e => {
console.log(e);
throw e;
})
);
});