mirror of
https://github.com/MisskeyIO/misskey
synced 2024-12-29 22:18:15 +09:00
124 lines
3.0 KiB
TypeScript
124 lines
3.0 KiB
TypeScript
/**
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* Service Worker
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*/
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declare var self: ServiceWorkerGlobalScope;
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import { get, set } from 'idb-keyval';
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import composeNotification from '@/sw/compose-notification';
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import { I18n } from '@/scripts/i18n';
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//#region Variables
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const version = _VERSION_;
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const cacheName = `mk-cache-${version}`;
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let lang: string;
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let i18n: I18n<any>;
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let pushesPool: any[] = [];
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//#endregion
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//#region Startup
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get('lang').then(async prelang => {
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if (!prelang) return;
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lang = prelang;
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return fetchLocale();
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});
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//#endregion
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//#region Lifecycle: Install
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self.addEventListener('install', ev => {
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self.skipWaiting();
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});
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//#endregion
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//#region Lifecycle: Activate
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self.addEventListener('activate', ev => {
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ev.waitUntil(
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caches.keys()
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.then(cacheNames => Promise.all(
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cacheNames
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.filter((v) => v !== cacheName)
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.map(name => caches.delete(name))
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))
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.then(() => self.clients.claim())
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);
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});
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//#endregion
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//#region When: Fetching
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self.addEventListener('fetch', ev => {
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// Nothing to do
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});
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//#endregion
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//#region When: Caught Notification
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self.addEventListener('push', ev => {
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// クライアント取得
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ev.waitUntil(self.clients.matchAll({
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includeUncontrolled: true
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}).then(async clients => {
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// クライアントがあったらストリームに接続しているということなので通知しない
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if (clients.length != 0) return;
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const { type, body } = ev.data?.json();
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// localeを読み込めておらずi18nがundefinedだった場合はpushesPoolにためておく
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if (!i18n) return pushesPool.push({ type, body });
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const n = await composeNotification(type, body, i18n);
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if (n) return self.registration.showNotification(...n);
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}));
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});
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//#endregion
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//#region When: Caught a message from the client
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self.addEventListener('message', ev => {
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switch(ev.data) {
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case 'clear':
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return; // TODO
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default:
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break;
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}
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if (typeof ev.data === 'object') {
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// E.g. '[object Array]' → 'array'
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const otype = Object.prototype.toString.call(ev.data).slice(8, -1).toLowerCase();
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if (otype === 'object') {
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if (ev.data.msg === 'initialize') {
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lang = ev.data.lang;
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set('lang', lang);
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fetchLocale();
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}
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}
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}
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});
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//#endregion
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//#region Function: (Re)Load i18n instance
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async function fetchLocale() {
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//#region localeファイルの読み込み
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// Service Workerは何度も起動しそのたびにlocaleを読み込むので、CacheStorageを使う
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const localeUrl = `/assets/locales/${lang}.${version}.json`;
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let localeRes = await caches.match(localeUrl);
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if (!localeRes) {
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localeRes = await fetch(localeUrl);
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const clone = localeRes?.clone();
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if (!clone?.clone().ok) return;
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caches.open(cacheName).then(cache => cache.put(localeUrl, clone));
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}
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i18n = new I18n(await localeRes.json());
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//#endregion
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//#region i18nをきちんと読み込んだ後にやりたい処理
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for (const { type, body } of pushesPool) {
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const n = await composeNotification(type, body, i18n);
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if (n) self.registration.showNotification(...n);
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}
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pushesPool = [];
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//#endregion
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}
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//#endregion
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