shelfy-v2/web/flutter_service_worker.js

'use strict';
const MANIFEST = 'flutter-app-manifest';
const TEMP = 'flutter-temp-cache';
const CACHE_NAME = 'flutter-app-cache';

const RESOURCES = {"flutter_bootstrap.js": "b8622b470cec508d49c40698411db8cf",
"version.json": "643782f9534d2f9be5b4ae2ce56ee388",
"index.html": "6969d9c82c7a8d15b9cb7ffed40b548e",
"/": "6969d9c82c7a8d15b9cb7ffed40b548e",
"main.dart.js": "21bcaf732f01f3e1ae2e9d20b4c337c6",
"flutter.js": "24bc71911b75b5f8135c949e27a2984e",
"favicon.png": "c87f31357d6051b15a7b28da4de40aaf",
"main.dart.mjs": "9a6d395eece2aeab90ec7472b64186e9",
"icons/Icon-192.png": "84b10ff9c16e389cacfe84a75ae525a2",
"icons/Icon-maskable-192.png": "84b10ff9c16e389cacfe84a75ae525a2",
"icons/Icon-maskable-512.png": "38072e13207b80a3c67d3f8c673a229d",
"icons/Icon-512.png": "38072e13207b80a3c67d3f8c673a229d",
"manifest.json": "7ecf77d798f49ca9bd7ba8f7385f490d",
"main.dart.wasm": "fdcf5423b1b8ffa1ca3d200a8791f84f",
"assets/NOTICES": "0254b2cd809d4da964488331b7fc8764",
"assets/FontManifest.json": "dc3d03800ccca4601324923c0b1d6d57",
"assets/AssetManifest.bin.json": "e44bb50a0b122ee5f3666674fa966327",
"assets/packages/cupertino_icons/assets/CupertinoIcons.ttf": "33b7d9392238c04c131b6ce224e13711",
"assets/packages/media_kit/assets/web/hls1.4.10.js": "bd60e2701c42b6bf2c339dcf5d495865",
"assets/packages/wakelock_plus/assets/no_sleep.js": "7748a45cd593f33280669b29c2c8919a",
"assets/shaders/ink_sparkle.frag": "ecc85a2e95f5e9f53123dcaf8cb9b6ce",
"assets/shaders/stretch_effect.frag": "40d68efbbf360632f614c731219e95f0",
"assets/AssetManifest.bin": "1fe78d99099ee4407478e70a08513c6f",
"assets/fonts/MaterialIcons-Regular.otf": "2f354b75901ac715495f2de57c21b7a3",
"canvaskit/skwasm.js": "8060d46e9a4901ca9991edd3a26be4f0",
"canvaskit/skwasm_heavy.js": "740d43a6b8240ef9e23eed8c48840da4",
"canvaskit/skwasm.js.symbols": "6468c49d9700a7ee9d92abe4f5e0f296",
"canvaskit/canvaskit.js.symbols": "843dbfd30a577e89c2d3bee20622702a",
"canvaskit/skwasm_heavy.js.symbols": "b35307f7fea10ab7361f316185125001",
"canvaskit/skwasm.wasm": "a148728b73697acfe7823adab370a0fe",
"canvaskit/chromium/canvaskit.js.symbols": "032c73e997c1a36ddf861b52267e7904",
"canvaskit/chromium/canvaskit.js": "510533ba693c18488e96b3508a4faaaf",
"canvaskit/chromium/canvaskit.wasm": "8cdc152de34c16daec3b48fb3cac8c05",
"canvaskit/canvaskit.js": "5fafcdfcf66cca4bc598030d809f9f38",
"canvaskit/canvaskit.wasm": "3961eb8325a9cd5072f2c0d81f8513c3",
"canvaskit/skwasm_heavy.wasm": "c489e6cb04b0f3e3df75b2759c542a09"};
// The application shell files that are downloaded before a service worker can
// start.
const CORE = ["main.dart.js",
"main.dart.wasm",
"main.dart.mjs",
"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;
        });
      });
    })
  );
}