218 lines
8.8 KiB
JavaScript
218 lines
8.8 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": "d60817d374508a2c4a7c0224cbbb6b37",
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"version.json": "f56c9eb4f24ffe0ef4ae51981126f500",
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"index.html": "2aab03d10fea3b608e3eddc0fc0077e5",
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"/": "2aab03d10fea3b608e3eddc0fc0077e5",
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"favicon-64.png": "259540a3217e969237530444ca0eaed3",
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"favicon-16.png": "106142fb24eba190e475dbe6513cc9ff",
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"main.dart.js": "e8b59f013355f8e56dfe50453c6b7f95",
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"flutter.js": "83d881c1dbb6d6bcd6b42e274605b69c",
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"favicon.png": "21510778ead066ac826ad69302400773",
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"icons/Icon-192.png": "f36879dd176101fac324b68793e4683c",
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"icons/Icon-maskable-192.png": "f36879dd176101fac324b68793e4683c",
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"icons/Icon-152.png": "501b8389843b98c20d517543b0a7c7bd",
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"icons/Icon-180.png": "08dbaf6c69ea2007ab0871eb4d46df7e",
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"icons/Icon-167.png": "bbfcd009dfda53ca20120189db78c27f",
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"icons/Icon-maskable-512.png": "4495c4d7eeff38c1a967d16a8129bd2e",
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"icons/Icon-512.png": "4495c4d7eeff38c1a967d16a8129bd2e",
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"manifest.json": "4c436b37549165212484247d584e67cc",
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"favicon-32.png": "21510778ead066ac826ad69302400773",
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"assets/AssetManifest.json": "cee1bd4de4a781ec66f996f4b1313d84",
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"assets/NOTICES": "32934942e5eaab159ae218933f3e08aa",
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"assets/FontManifest.json": "2eb88ea349cfc4d8628e771303d003ca",
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"assets/AssetManifest.bin.json": "6c9ed0d5d7f4ade08e6e07b6c6a6513f",
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"assets/packages/cupertino_icons/assets/CupertinoIcons.ttf": "33b7d9392238c04c131b6ce224e13711",
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"assets/packages/flutter_map/lib/assets/flutter_map_logo.png": "208d63cc917af9713fc9572bd5c09362",
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"assets/shaders/ink_sparkle.frag": "ecc85a2e95f5e9f53123dcaf8cb9b6ce",
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"assets/AssetManifest.bin": "bb9240a2148a79f4e1593ed3a51f47d0",
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"assets/fonts/MaterialIcons-Regular.otf": "073156adb10885610c57bf589a14a1e1",
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"assets/assets/images/geosector-logo.png": "b78408af5aa357b1107e1cb7be9e7c1e",
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"assets/assets/images/logo-geosector-1024.png": "adb1be034f0b983acf6246369a794de5",
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"assets/assets/images/icon-geosector.svg": "c9dd0fb514a53ee434b57895cf6cd5fd",
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"assets/assets/images/logo_recu.png": "8eb998b803c62848a6796b3362c648de",
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"assets/assets/fonts/Figtree-VariableFont_wght.ttf": "d25a5457a34fbf1c36b2937df1cf543b",
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"assets/assets/animations/geo_main.json": "e1c9755530d5f83718d4d43b0a36a703",
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"canvaskit/skwasm.js": "ea559890a088fe28b4ddf70e17e60052",
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"canvaskit/skwasm.js.symbols": "e72c79950c8a8483d826a7f0560573a1",
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"canvaskit/canvaskit.js.symbols": "bdcd3835edf8586b6d6edfce8749fb77",
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"canvaskit/skwasm.wasm": "39dd80367a4e71582d234948adc521c0",
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"canvaskit/chromium/canvaskit.js.symbols": "b61b5f4673c9698029fa0a746a9ad581",
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"canvaskit/chromium/canvaskit.js": "8191e843020c832c9cf8852a4b909d4c",
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"canvaskit/chromium/canvaskit.wasm": "f504de372e31c8031018a9ec0a9ef5f0",
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"canvaskit/canvaskit.js": "728b2d477d9b8c14593d4f9b82b484f3",
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"canvaskit/canvaskit.wasm": "7a3f4ae7d65fc1de6a6e7ddd3224bc93"};
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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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"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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