214 lines
8.4 KiB
JavaScript
214 lines
8.4 KiB
JavaScript
'use strict';
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const MANIFEST = 'flutter-app-manifest';
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const TEMP = 'flutter-temp-cache';
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const CACHE_NAME = 'flutter-app-cache';
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const RESOURCES = {"flutter_bootstrap.js": "f410ef3fc79c43b8fb983b2dddf662a3",
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"version.json": "643782f9534d2f9be5b4ae2ce56ee388",
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"index.html": "6969d9c82c7a8d15b9cb7ffed40b548e",
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"/": "6969d9c82c7a8d15b9cb7ffed40b548e",
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"main.dart.js": "b46b131e1eaf06955ecf190213627253",
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"flutter.js": "24bc71911b75b5f8135c949e27a2984e",
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"favicon.png": "c87f31357d6051b15a7b28da4de40aaf",
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"main.dart.mjs": "12b5aa9c690cd101468fb2e75a30dc00",
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"icons/Icon-192.png": "84b10ff9c16e389cacfe84a75ae525a2",
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"icons/Icon-maskable-192.png": "84b10ff9c16e389cacfe84a75ae525a2",
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"icons/Icon-maskable-512.png": "38072e13207b80a3c67d3f8c673a229d",
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"icons/Icon-512.png": "38072e13207b80a3c67d3f8c673a229d",
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"manifest.json": "7ecf77d798f49ca9bd7ba8f7385f490d",
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"main.dart.wasm": "9b1a178c5e38dd404a8a7ee0c75b496d",
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"assets/NOTICES": "f0bc3fd3fc7b6a44165cec186f64b01b",
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"assets/FontManifest.json": "dc3d03800ccca4601324923c0b1d6d57",
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"assets/AssetManifest.bin.json": "e44bb50a0b122ee5f3666674fa966327",
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"assets/packages/cupertino_icons/assets/CupertinoIcons.ttf": "33b7d9392238c04c131b6ce224e13711",
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"assets/packages/media_kit/assets/web/hls1.4.10.js": "bd60e2701c42b6bf2c339dcf5d495865",
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"assets/packages/wakelock_plus/assets/no_sleep.js": "7748a45cd593f33280669b29c2c8919a",
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"assets/shaders/ink_sparkle.frag": "ecc85a2e95f5e9f53123dcaf8cb9b6ce",
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"assets/shaders/stretch_effect.frag": "40d68efbbf360632f614c731219e95f0",
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"assets/AssetManifest.bin": "1fe78d99099ee4407478e70a08513c6f",
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"assets/fonts/MaterialIcons-Regular.otf": "4146e0bf2af29e04d4558347114b131d",
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"canvaskit/skwasm.js": "8060d46e9a4901ca9991edd3a26be4f0",
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"canvaskit/skwasm_heavy.js": "740d43a6b8240ef9e23eed8c48840da4",
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"canvaskit/skwasm.js.symbols": "6468c49d9700a7ee9d92abe4f5e0f296",
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"canvaskit/canvaskit.js.symbols": "843dbfd30a577e89c2d3bee20622702a",
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"canvaskit/skwasm_heavy.js.symbols": "b35307f7fea10ab7361f316185125001",
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"canvaskit/skwasm.wasm": "a148728b73697acfe7823adab370a0fe",
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"canvaskit/chromium/canvaskit.js.symbols": "032c73e997c1a36ddf861b52267e7904",
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"canvaskit/chromium/canvaskit.js": "510533ba693c18488e96b3508a4faaaf",
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"canvaskit/chromium/canvaskit.wasm": "8cdc152de34c16daec3b48fb3cac8c05",
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"canvaskit/canvaskit.js": "5fafcdfcf66cca4bc598030d809f9f38",
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"canvaskit/canvaskit.wasm": "3961eb8325a9cd5072f2c0d81f8513c3",
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"canvaskit/skwasm_heavy.wasm": "c489e6cb04b0f3e3df75b2759c542a09"};
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// The application shell files that are downloaded before a service worker can
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// start.
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const CORE = ["main.dart.js",
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"main.dart.wasm",
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"main.dart.mjs",
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"index.html",
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"flutter_bootstrap.js",
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"assets/AssetManifest.bin.json",
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"assets/FontManifest.json"];
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// During install, the TEMP cache is populated with the application shell files.
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self.addEventListener("install", (event) => {
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self.skipWaiting();
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return event.waitUntil(
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caches.open(TEMP).then((cache) => {
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return cache.addAll(
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CORE.map((value) => new Request(value, {'cache': 'reload'})));
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})
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);
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});
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// During activate, the cache is populated with the temp files downloaded in
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// install. If this service worker is upgrading from one with a saved
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// MANIFEST, then use this to retain unchanged resource files.
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self.addEventListener("activate", function(event) {
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return event.waitUntil(async function() {
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try {
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var contentCache = await caches.open(CACHE_NAME);
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var tempCache = await caches.open(TEMP);
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var manifestCache = await caches.open(MANIFEST);
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var manifest = await manifestCache.match('manifest');
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// When there is no prior manifest, clear the entire cache.
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if (!manifest) {
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await caches.delete(CACHE_NAME);
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contentCache = await caches.open(CACHE_NAME);
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for (var request of await tempCache.keys()) {
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var response = await tempCache.match(request);
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await contentCache.put(request, response);
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}
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await caches.delete(TEMP);
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// Save the manifest to make future upgrades efficient.
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await manifestCache.put('manifest', new Response(JSON.stringify(RESOURCES)));
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// Claim client to enable caching on first launch
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self.clients.claim();
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return;
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}
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var oldManifest = await manifest.json();
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var origin = self.location.origin;
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for (var request of await contentCache.keys()) {
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var key = request.url.substring(origin.length + 1);
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if (key == "") {
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key = "/";
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}
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// If a resource from the old manifest is not in the new cache, or if
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// the MD5 sum has changed, delete it. Otherwise the resource is left
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// in the cache and can be reused by the new service worker.
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if (!RESOURCES[key] || RESOURCES[key] != oldManifest[key]) {
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await contentCache.delete(request);
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}
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}
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// Populate the cache with the app shell TEMP files, potentially overwriting
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// cache files preserved above.
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for (var request of await tempCache.keys()) {
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var response = await tempCache.match(request);
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await contentCache.put(request, response);
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}
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await caches.delete(TEMP);
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// Save the manifest to make future upgrades efficient.
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await manifestCache.put('manifest', new Response(JSON.stringify(RESOURCES)));
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// Claim client to enable caching on first launch
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self.clients.claim();
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return;
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} catch (err) {
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// On an unhandled exception the state of the cache cannot be guaranteed.
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console.error('Failed to upgrade service worker: ' + err);
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await caches.delete(CACHE_NAME);
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await caches.delete(TEMP);
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await caches.delete(MANIFEST);
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}
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}());
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});
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// The fetch handler redirects requests for RESOURCE files to the service
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// worker cache.
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self.addEventListener("fetch", (event) => {
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if (event.request.method !== 'GET') {
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return;
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}
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var origin = self.location.origin;
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var key = event.request.url.substring(origin.length + 1);
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// Redirect URLs to the index.html
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if (key.indexOf('?v=') != -1) {
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key = key.split('?v=')[0];
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}
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if (event.request.url == origin || event.request.url.startsWith(origin + '/#') || key == '') {
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key = '/';
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}
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// If the URL is not the RESOURCE list then return to signal that the
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// browser should take over.
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if (!RESOURCES[key]) {
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return;
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}
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// If the URL is the index.html, perform an online-first request.
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if (key == '/') {
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return onlineFirst(event);
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}
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event.respondWith(caches.open(CACHE_NAME)
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.then((cache) => {
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return cache.match(event.request).then((response) => {
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// Either respond with the cached resource, or perform a fetch and
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// lazily populate the cache only if the resource was successfully fetched.
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return response || fetch(event.request).then((response) => {
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if (response && Boolean(response.ok)) {
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cache.put(event.request, response.clone());
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}
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return response;
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});
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})
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})
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);
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});
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self.addEventListener('message', (event) => {
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// SkipWaiting can be used to immediately activate a waiting service worker.
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// This will also require a page refresh triggered by the main worker.
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if (event.data === 'skipWaiting') {
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self.skipWaiting();
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return;
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}
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if (event.data === 'downloadOffline') {
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downloadOffline();
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return;
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}
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});
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// Download offline will check the RESOURCES for all files not in the cache
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// and populate them.
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async function downloadOffline() {
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var resources = [];
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var contentCache = await caches.open(CACHE_NAME);
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var currentContent = {};
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for (var request of await contentCache.keys()) {
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var key = request.url.substring(origin.length + 1);
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if (key == "") {
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key = "/";
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}
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currentContent[key] = true;
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}
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for (var resourceKey of Object.keys(RESOURCES)) {
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if (!currentContent[resourceKey]) {
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resources.push(resourceKey);
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}
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}
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return contentCache.addAll(resources);
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}
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// Attempt to download the resource online before falling back to
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// the offline cache.
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function onlineFirst(event) {
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return event.respondWith(
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fetch(event.request).then((response) => {
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return caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, response.clone());
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return response;
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});
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}).catch((error) => {
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return caches.open(CACHE_NAME).then((cache) => {
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return cache.match(event.request).then((response) => {
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if (response != null) {
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return response;
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}
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throw error;
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});
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});
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})
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);
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}
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