diff --git a/Iceshrimp.Backend/Pages/Shared/FrontendSPA.cshtml b/Iceshrimp.Backend/Pages/Shared/FrontendSPA.cshtml index a36f2419..371459d9 100644 --- a/Iceshrimp.Backend/Pages/Shared/FrontendSPA.cshtml +++ b/Iceshrimp.Backend/Pages/Shared/FrontendSPA.cshtml @@ -16,6 +16,9 @@ + + + @@ -38,6 +41,7 @@ + diff --git a/Iceshrimp.Frontend/Iceshrimp.Frontend.csproj b/Iceshrimp.Frontend/Iceshrimp.Frontend.csproj index 3e1eda29..0f218f0c 100644 --- a/Iceshrimp.Frontend/Iceshrimp.Frontend.csproj +++ b/Iceshrimp.Frontend/Iceshrimp.Frontend.csproj @@ -12,34 +12,45 @@ - + + - - + + - - - - - - - - - + + + + + + + + + - all - runtime; build; native; contentfiles; analyzers; buildtransitive + all + runtime; build; native; contentfiles; analyzers; buildtransitive - + - + + + + + + service-worker-assets.js + + + + diff --git a/Iceshrimp.Frontend/wwwroot/icon-512.png b/Iceshrimp.Frontend/wwwroot/icon-512.png new file mode 100644 index 00000000..c2dd4842 Binary files /dev/null and b/Iceshrimp.Frontend/wwwroot/icon-512.png differ diff --git a/Iceshrimp.Frontend/wwwroot/manifest.webmanifest b/Iceshrimp.Frontend/wwwroot/manifest.webmanifest new file mode 100644 index 00000000..da0dd1c5 --- /dev/null +++ b/Iceshrimp.Frontend/wwwroot/manifest.webmanifest @@ -0,0 +1,22 @@ +{ + "name": "Iceshrimp.Frontend", + "short_name": "Iceshrimp.Frontend", + "id": "./", + "start_url": "./", + "display": "standalone", + "background_color": "#ffffff", + "theme_color": "#03173d", + "prefer_related_applications": false, + "icons": [ + { + "src": "icon-512.png", + "type": "image/png", + "sizes": "512x512" + }, + { + "src": "icon-192.png", + "type": "image/png", + "sizes": "192x192" + } + ] +} diff --git a/Iceshrimp.Frontend/wwwroot/service-worker.js b/Iceshrimp.Frontend/wwwroot/service-worker.js new file mode 100644 index 00000000..c6d00859 --- /dev/null +++ b/Iceshrimp.Frontend/wwwroot/service-worker.js @@ -0,0 +1,4 @@ +// In development, always fetch from the network and do not enable offline support. +// This is because caching would make development more difficult (changes would not +// be reflected on the first load after each change). +self.addEventListener('fetch', () => { }); diff --git a/Iceshrimp.Frontend/wwwroot/service-worker.published.js b/Iceshrimp.Frontend/wwwroot/service-worker.published.js new file mode 100644 index 00000000..003e3e78 --- /dev/null +++ b/Iceshrimp.Frontend/wwwroot/service-worker.published.js @@ -0,0 +1,55 @@ +// Caution! Be sure you understand the caveats before publishing an application with +// offline support. See https://aka.ms/blazor-offline-considerations + +self.importScripts('./service-worker-assets.js'); +self.addEventListener('install', event => event.waitUntil(onInstall(event))); +self.addEventListener('activate', event => event.waitUntil(onActivate(event))); +self.addEventListener('fetch', event => event.respondWith(onFetch(event))); + +const cacheNamePrefix = 'offline-cache-'; +const cacheName = `${cacheNamePrefix}${self.assetsManifest.version}`; +const offlineAssetsInclude = [ /\.dll$/, /\.pdb$/, /\.wasm/, /\.html/, /\.js$/, /\.json$/, /\.css$/, /\.woff$/, /\.png$/, /\.jpe?g$/, /\.gif$/, /\.ico$/, /\.blat$/, /\.dat$/ ]; +const offlineAssetsExclude = [ /^service-worker\.js$/ ]; + +// Replace with your base path if you are hosting on a subfolder. Ensure there is a trailing '/'. +const base = "/"; +const baseUrl = new URL(base, self.origin); +const manifestUrlList = self.assetsManifest.assets.map(asset => new URL(asset.url, baseUrl).href); + +async function onInstall(event) { + console.info('Service worker: Install'); + + // Fetch and cache all matching items from the assets manifest + const assetsRequests = self.assetsManifest.assets + .filter(asset => offlineAssetsInclude.some(pattern => pattern.test(asset.url))) + .filter(asset => !offlineAssetsExclude.some(pattern => pattern.test(asset.url))) + .map(asset => new Request(asset.url, { integrity: asset.hash, cache: 'no-cache' })); + await caches.open(cacheName).then(cache => cache.addAll(assetsRequests)); +} + +async function onActivate(event) { + console.info('Service worker: Activate'); + + // Delete unused caches + const cacheKeys = await caches.keys(); + await Promise.all(cacheKeys + .filter(key => key.startsWith(cacheNamePrefix) && key !== cacheName) + .map(key => caches.delete(key))); +} + +async function onFetch(event) { + let cachedResponse = null; + if (event.request.method === 'GET') { + // For all navigation requests, try to serve index.html from cache, + // unless that request is for an offline resource. + // If you need some URLs to be server-rendered, edit the following check to exclude those URLs + const shouldServeIndexHtml = event.request.mode === 'navigate' + && !manifestUrlList.some(url => url === event.request.url); + + const request = shouldServeIndexHtml ? 'index.html' : event.request; + const cache = await caches.open(cacheName); + cachedResponse = await cache.match(request); + } + + return cachedResponse || fetch(event.request); +}