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flutter_service_worker.js 8.77 KB
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9yen 提交于 2022-02-17 17:04 . web包
'use strict';
const MANIFEST = 'flutter-app-manifest';
const TEMP = 'flutter-temp-cache';
const CACHE_NAME = 'flutter-app-cache';
const RESOURCES = {
"assets/AssetManifest.json": "964e16a6082202b1a3958680e245930a",
"assets/assets/icons/Documents.svg": "51896b51d35e28711cf4bd218bde185d",
"assets/assets/icons/doc_file.svg": "552a02a5a3dbaee682de14573f0ca9f3",
"assets/assets/icons/drop_box.svg": "3295157e194179743d6093de9f1ff254",
"assets/assets/icons/excle_file.svg": "dc91b258ecf87f5731fb2ab9ae15a3ec",
"assets/assets/icons/Figma_file.svg": "0ae328b79325e7615054aed3147c81f9",
"assets/assets/icons/folder.svg": "40a82e74e930ac73aa6ccb85d8c5a29c",
"assets/assets/icons/google_drive.svg": "9a3005a58d47a11bfeffc11ddd3567c1",
"assets/assets/icons/logo.svg": "b3af0c077a73709c992d7e075b76ce33",
"assets/assets/icons/media.svg": "059dfe46bd2d92e30bf361c2f7055c3b",
"assets/assets/icons/media_file.svg": "2ac15c968f8a8cea571a0f3e9f238a66",
"assets/assets/icons/menu_dashbord.svg": "b2cdf62e9ce9ca35f3fc72f1c1fcc7d4",
"assets/assets/icons/menu_doc.svg": "09673c2879de2db9646345011dbaa7bb",
"assets/assets/icons/menu_notification.svg": "460268d6e4bdeab56538d7020cc4b326",
"assets/assets/icons/menu_profile.svg": "fe56f998a7c1b307809ea3653a1b62f9",
"assets/assets/icons/menu_setting.svg": "d0e24d5d0956729e0e2ab09cb4327e32",
"assets/assets/icons/menu_store.svg": "2fd4ae47fd0fca084e50a600dda008cd",
"assets/assets/icons/menu_task.svg": "1a02d1c14f49a765da34487d23a3093b",
"assets/assets/icons/menu_tran.svg": "6c95fa7ae6679737dc57efd2ccbb0e57",
"assets/assets/icons/one_drive.svg": "aa908c0a29eb795606799385cdfc8592",
"assets/assets/icons/pdf_file.svg": "ca854643eeee7bedba7a1d550e2ba94f",
"assets/assets/icons/Search.svg": "396d519c18918ed763d741f4ba90243a",
"assets/assets/icons/sound_file.svg": "fe212d5edfddd0786319edf50601ec73",
"assets/assets/icons/unknown.svg": "b2f3cdc507252d75dea079282f14614f",
"assets/assets/icons/xd_file.svg": "38913b108e39bcd55988050d2d80194c",
"assets/assets/images/logo.png": "5315be9d0a7602fb12a0ad4c2e3006e9",
"assets/assets/images/profile_pic.png": "5f56c3070f1c066ae15ecad12fb44f54",
"assets/FontManifest.json": "dc3d03800ccca4601324923c0b1d6d57",
"assets/fonts/MaterialIcons-Regular.otf": "4e6447691c9509f7acdbf8a931a85ca1",
"assets/loading.gif": "7a63480a257cdcc94fea9fa407908cbf",
"assets/NOTICES": "af6492675a9fff3b0e30649cc40e408a",
"assets/packages/cupertino_icons/assets/CupertinoIcons.ttf": "6d342eb68f170c97609e9da345464e5e",
"canvaskit/canvaskit.js": "c2b4e5f3d7a3d82aed024e7249a78487",
"canvaskit/canvaskit.wasm": "4b83d89d9fecbea8ca46f2f760c5a9ba",
"canvaskit/profiling/canvaskit.js": "ae2949af4efc61d28a4a80fffa1db900",
"canvaskit/profiling/canvaskit.wasm": "95e736ab31147d1b2c7b25f11d4c32cd",
"favicon.png": "5dcef449791fa27946b3d35ad8803796",
"icons/Icon-192.png": "ac9a721a12bbc803b44f645561ecb1e1",
"icons/Icon-512.png": "96e752610906ba2a93c65f8abe1645f1",
"index.html": "52be397bb0140c9c5d0633aed42c7c2a",
"/": "52be397bb0140c9c5d0633aed42c7c2a",
"main.dart.js": "06b783d5ba3098321fd2c667124857af",
"manifest.json": "df8ee12e5d40a884cc23acd0588bda1c",
"version.json": "e9eb58db72d407be27e9fa052224c304"
};
// The application shell files that are downloaded before a service worker can
// start.
const CORE = [
"/",
"main.dart.js",
"index.html",
"assets/NOTICES",
"assets/AssetManifest.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)));
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)));
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.
return response || fetch(event.request).then((response) => {
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;
});
});
})
);
}
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web包
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