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samples/web/game_template/flutter_service_worker.js

251 lines
11 KiB

'use strict';
const MANIFEST = 'flutter-app-manifest';
const TEMP = 'flutter-temp-cache';
const CACHE_NAME = 'flutter-app-cache';
const RESOURCES = {"flutter.js": "f393d3c16b631f36852323de8e583132",
"main.dart.js": "d236ab9404b4a18e543f58bb1cdf4e99",
"assets/FontManifest.json": "202bfb5144bfc3359dc068bcf44cba82",
"assets/AssetManifest.bin": "7017452825c872af33db31d43bdd7aa2",
"assets/fonts/MaterialIcons-Regular.otf": "2dc7b66ce02ddbcf332a87a8242b667a",
"assets/packages/cupertino_icons/assets/CupertinoIcons.ttf": "e986ebe42ef785b27164c36a9abc7818",
"assets/assets/sfx/yay1.mp3": "8d3b940e33ccfec612d06a41ae616f71",
"assets/assets/sfx/hash2.mp3": "d26cb7676c3c0d13a78799b3ccac4103",
"assets/assets/sfx/p2.mp3": "ab829255f1ef20fbd4340a7c9e5157ad",
"assets/assets/sfx/fwfwfwfw1.mp3": "d0f7ee0256d1f0d40d77a1264f23342b",
"assets/assets/sfx/k1.mp3": "37ffb6f8c0435298b0a02e4e302e5b1f",
"assets/assets/sfx/sh1.mp3": "f695db540ae0ea850ecbb341a825a47b",
"assets/assets/sfx/spsh1.mp3": "2e1354f39a5988afabb2fdd27cba63e1",
"assets/assets/sfx/fwfwfwfwfw1.mp3": "46355605b43594b67a39170f89141dc1",
"assets/assets/sfx/hh1.mp3": "fab21158730b078ce90568ce2055db07",
"assets/assets/sfx/lalala1.mp3": "b0b85bf59814b014ff48d6d79275ecfd",
"assets/assets/sfx/p1.mp3": "ad28c0d29ac9e8adf9a91a46bfbfac82",
"assets/assets/sfx/kss1.mp3": "fd0664b62bb9205c1ba6868d2d185897",
"assets/assets/sfx/swishswish1.mp3": "219b0f5c2deec2eda0a9e0e941894cb6",
"assets/assets/sfx/README.md": "33033a0943d1325f78116fcf4b8a96ec",
"assets/assets/sfx/wehee1.mp3": "5a986231104c9f084104e5ee1c564bc4",
"assets/assets/sfx/oo1.mp3": "94b9149911d0f2de8f3880c524b93683",
"assets/assets/sfx/wssh1.mp3": "cf92e8d8483097569e3278c82ac9f871",
"assets/assets/sfx/ehehee1.mp3": "52f5042736fa3f4d4198b97fe50ce7f3",
"assets/assets/sfx/haw1.mp3": "00db66b69283acb63a887136dfe7a73c",
"assets/assets/sfx/hash1.mp3": "f444469cd7a5a27062580ecd2b481770",
"assets/assets/sfx/sh2.mp3": "e3212b9a7d1456ecda26fdc263ddd3d0",
"assets/assets/sfx/k2.mp3": "8ec44723c33a1e41f9a96d6bbecde6b9",
"assets/assets/sfx/wssh2.mp3": "255c455d9692c697400696cbb28511cc",
"assets/assets/sfx/hh2.mp3": "4d39e7365b89c74db536c32dfe35580b",
"assets/assets/sfx/dsht1.mp3": "c99ece72f0957a9eaf52ade494465946",
"assets/assets/sfx/hash3.mp3": "38aad045fbbf951bf5e4ca882b56245e",
"assets/assets/sfx/ws1.mp3": "5cfa8fda1ee940e65a19391ddef4d477",
"assets/assets/sfx/kch1.mp3": "a832ed0c8798b4ec95c929a5b0cabd3f",
"assets/assets/images/3.5x/settings.png": "c977a1e6c59e8cfd5cd88a0c973928fc",
"assets/assets/images/3.5x/back.png": "85db134e26410547037485447f659277",
"assets/assets/images/3.5x/restart.png": "583169ac365d9515fc12f29e3b530de0",
"assets/assets/images/settings.png": "840fd7e3337c743046bf992ef18a10b8",
"assets/assets/images/2x/settings.png": "8404e18c68ba99ca0b181bd96ace0376",
"assets/assets/images/2x/back.png": "85cda8f41a13153d6f3fb1c403f272ea",
"assets/assets/images/2x/restart.png": "83aea4677055df9b0d8171f5315f2a60",
"assets/assets/images/back.png": "3c82301693d5c4140786184a06c23f7e",
"assets/assets/images/restart.png": "d3d2e3f3b2f6cb1e1a69b8b2529096f7",
"assets/assets/images/3x/settings.png": "21ff2cc135a762f74ed1a80aac6502bb",
"assets/assets/images/3x/back.png": "88a977a654df5a490037340f90a5a19e",
"assets/assets/images/3x/restart.png": "429270ce832c881b80fbd592e5ff1e0e",
"assets/assets/music/Mr_Smith-Sunday_Solitude.mp3": "5fb1f2fbf4314eb5df35b62706942698",
"assets/assets/music/Mr_Smith-Sonorus.mp3": "9353b7bb732002062e2c9107a95f3d2a",
"assets/assets/music/README.md": "035041cfb2070f794172dedb2aa709b6",
"assets/assets/music/Mr_Smith-Azul.mp3": "9463595498dc48b3d3d6805fb7c19dc7",
"assets/assets/Permanent_Marker/PermanentMarker-Regular.ttf": "c863f8028c2505f92540e0ba7c379002",
"assets/NOTICES": "c2bd883cd264ddc8793a328d011cb744",
"assets/shaders/ink_sparkle.frag": "ecc85a2e95f5e9f53123dcaf8cb9b6ce",
"assets/AssetManifest.json": "6524b32709995f38c586a40ba7ed88d3",
"assets/AssetManifest.bin.json": "e47d828b9004dbafdd82098e382680bd",
"index.html": "af33a34f979be0df341d13ecc1f4e9a4",
"/": "af33a34f979be0df341d13ecc1f4e9a4",
"manifest.json": "d3e8be9819697c196251e6e977053336",
"canvaskit/canvaskit.js": "66177750aff65a66cb07bb44b8c6422b",
"canvaskit/canvaskit.js.symbols": "48c83a2ce573d9692e8d970e288d75f7",
"canvaskit/chromium/canvaskit.js": "671c6b4f8fcc199dcc551c7bb125f239",
"canvaskit/chromium/canvaskit.js.symbols": "a012ed99ccba193cf96bb2643003f6fc",
"canvaskit/chromium/canvaskit.wasm": "b1ac05b29c127d86df4bcfbf50dd902a",
"canvaskit/skwasm.js": "694fda5704053957c2594de355805228",
"canvaskit/skwasm.js.symbols": "262f4827a1317abb59d71d6c587a93e2",
"canvaskit/canvaskit.wasm": "1f237a213d7370cf95f443d896176460",
"canvaskit/skwasm.wasm": "9f0c0c02b82a910d12ce0543ec130e60",
"canvaskit/skwasm.worker.js": "89990e8c92bcb123999aa81f7e203b1c",
"icons/Icon-maskable-192.png": "c457ef57daa1d16f64b27b786ec2ea3c",
"icons/Icon-192.png": "ac9a721a12bbc803b44f645561ecb1e1",
"icons/Icon-512.png": "96e752610906ba2a93c65f8abe1645f1",
"icons/Icon-maskable-512.png": "301a7604d45b3e739efc881eb04896ea",
"favicon.png": "5dcef449791fa27946b3d35ad8803796",
"version.json": "4af817f8de4133edacca0908f16858d5",
"flutter_bootstrap.js": "c803765dae83a0594d17206a966aa6d9"};
// The application shell files that are downloaded before a service worker can
// start.
const CORE = ["main.dart.js",
"index.html",
"flutter_bootstrap.js",
"assets/AssetManifest.bin.json",
"assets/FontManifest.json"];
// During install, the TEMP cache is populated with the application shell files.
self.addEventListener("install", (event) => {
self.skipWaiting();
return event.waitUntil(
caches.open(TEMP).then((cache) => {
return cache.addAll(
CORE.map((value) => new Request(value, {'cache': 'reload'})));
})
);
});
// During activate, the cache is populated with the temp files downloaded in
// install. If this service worker is upgrading from one with a saved
// MANIFEST, then use this to retain unchanged resource files.
self.addEventListener("activate", function(event) {
return event.waitUntil(async function() {
try {
var contentCache = await caches.open(CACHE_NAME);
var tempCache = await caches.open(TEMP);
var manifestCache = await caches.open(MANIFEST);
var manifest = await manifestCache.match('manifest');
// When there is no prior manifest, clear the entire cache.
if (!manifest) {
await caches.delete(CACHE_NAME);
contentCache = await caches.open(CACHE_NAME);
for (var request of await tempCache.keys()) {
var response = await tempCache.match(request);
await contentCache.put(request, response);
}
await caches.delete(TEMP);
// Save the manifest to make future upgrades efficient.
await manifestCache.put('manifest', new Response(JSON.stringify(RESOURCES)));
// Claim client to enable caching on first launch
self.clients.claim();
return;
}
var oldManifest = await manifest.json();
var origin = self.location.origin;
for (var request of await contentCache.keys()) {
var key = request.url.substring(origin.length + 1);
if (key == "") {
key = "/";
}
// If a resource from the old manifest is not in the new cache, or if
// the MD5 sum has changed, delete it. Otherwise the resource is left
// in the cache and can be reused by the new service worker.
if (!RESOURCES[key] || RESOURCES[key] != oldManifest[key]) {
await contentCache.delete(request);
}
}
// Populate the cache with the app shell TEMP files, potentially overwriting
// cache files preserved above.
for (var request of await tempCache.keys()) {
var response = await tempCache.match(request);
await contentCache.put(request, response);
}
await caches.delete(TEMP);
// Save the manifest to make future upgrades efficient.
await manifestCache.put('manifest', new Response(JSON.stringify(RESOURCES)));
// Claim client to enable caching on first launch
self.clients.claim();
return;
} catch (err) {
// On an unhandled exception the state of the cache cannot be guaranteed.
console.error('Failed to upgrade service worker: ' + err);
await caches.delete(CACHE_NAME);
await caches.delete(TEMP);
await caches.delete(MANIFEST);
}
}());
});
// The fetch handler redirects requests for RESOURCE files to the service
// worker cache.
self.addEventListener("fetch", (event) => {
if (event.request.method !== 'GET') {
return;
}
var origin = self.location.origin;
var key = event.request.url.substring(origin.length + 1);
// Redirect URLs to the index.html
if (key.indexOf('?v=') != -1) {
key = key.split('?v=')[0];
}
if (event.request.url == origin || event.request.url.startsWith(origin + '/#') || key == '') {
key = '/';
}
// If the URL is not the RESOURCE list then return to signal that the
// browser should take over.
if (!RESOURCES[key]) {
return;
}
// If the URL is the index.html, perform an online-first request.
if (key == '/') {
return onlineFirst(event);
}
event.respondWith(caches.open(CACHE_NAME)
.then((cache) => {
return cache.match(event.request).then((response) => {
// Either respond with the cached resource, or perform a fetch and
// lazily populate the cache only if the resource was successfully fetched.
return response || fetch(event.request).then((response) => {
if (response && Boolean(response.ok)) {
cache.put(event.request, response.clone());
}
return response;
});
})
})
);
});
self.addEventListener('message', (event) => {
// SkipWaiting can be used to immediately activate a waiting service worker.
// This will also require a page refresh triggered by the main worker.
if (event.data === 'skipWaiting') {
self.skipWaiting();
return;
}
if (event.data === 'downloadOffline') {
downloadOffline();
return;
}
});
// Download offline will check the RESOURCES for all files not in the cache
// and populate them.
async function downloadOffline() {
var resources = [];
var contentCache = await caches.open(CACHE_NAME);
var currentContent = {};
for (var request of await contentCache.keys()) {
var key = request.url.substring(origin.length + 1);
if (key == "") {
key = "/";
}
currentContent[key] = true;
}
for (var resourceKey of Object.keys(RESOURCES)) {
if (!currentContent[resourceKey]) {
resources.push(resourceKey);
}
}
return contentCache.addAll(resources);
}
// Attempt to download the resource online before falling back to
// the offline cache.
function onlineFirst(event) {
return event.respondWith(
fetch(event.request).then((response) => {
return caches.open(CACHE_NAME).then((cache) => {
cache.put(event.request, response.clone());
return response;
});
}).catch((error) => {
return caches.open(CACHE_NAME).then((cache) => {
return cache.match(event.request).then((response) => {
if (response != null) {
return response;
}
throw error;
});
});
})
);
}