48 lines
1.1 KiB
JavaScript
Executable File
48 lines
1.1 KiB
JavaScript
Executable File
// Service Worker for InfoGenie App
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const CACHE_NAME = 'infogenie-cache-v1';
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const urlsToCache = [
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'/',
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'/index.html',
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'/manifest.json'
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];
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// 安装Service Worker
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self.addEventListener('install', event => {
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event.waitUntil(
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caches.open(CACHE_NAME)
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.then(cache => {
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console.log('Opened cache');
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return cache.addAll(urlsToCache);
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})
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);
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});
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// 拦截请求并从缓存中响应
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self.addEventListener('fetch', event => {
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event.respondWith(
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caches.match(event.request)
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.then(response => {
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// 如果找到缓存的响应，则返回缓存
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if (response) {
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return response;
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}
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return fetch(event.request);
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})
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);
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});
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// 更新Service Worker
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self.addEventListener('activate', event => {
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const cacheWhitelist = [CACHE_NAME];
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event.waitUntil(
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caches.keys().then(cacheNames => {
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return Promise.all(
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cacheNames.map(cacheName => {
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if (cacheWhitelist.indexOf(cacheName) === -1) {
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return caches.delete(cacheName);
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}
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})
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);
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})
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);
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}); |