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hotomoe/src/client/sw.js
2020-02-09 12:47:50 +09:00

71 lines
1.6 KiB
JavaScript

/**
* Service Worker
*/
import composeNotification from './scripts/compose-notification';
// eslint-disable-next-line no-undef
const version = _VERSION_;
const cacheName = `mk-cache-${version}`;
const apiUrl = `${location.origin}/api/`;
// インストールされたとき
self.addEventListener('install', ev => {
console.info('installed');
ev.waitUntil(
caches.open(cacheName)
.then(cache => {
return cache.addAll([
`/?v=${version}`
]);
})
.then(() => self.skipWaiting())
);
});
self.addEventListener('activate', ev => {
ev.waitUntil(
caches.keys()
.then(cacheNames => Promise.all(
cacheNames
.filter((v) => v !== cacheName)
.map(name => caches.delete(name))
))
.then(() => self.clients.claim())
);
});
self.addEventListener('fetch', ev => {
if (ev.request.method !== 'GET' || ev.request.url.startsWith(apiUrl)) return;
ev.respondWith(
caches.match(ev.request)
.then(response => {
return response || fetch(ev.request);
})
.catch(() => {
return caches.match(`/?v=${version}`);
})
);
});
// プッシュ通知を受け取ったとき
self.addEventListener('push', ev => {
// クライアント取得
ev.waitUntil(self.clients.matchAll({
includeUncontrolled: true
}).then(clients => {
// 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
if (clients.length != 0) return;
const { type, body } = ev.data.json();
const n = composeNotification(type, body);
return self.registration.showNotification(n.title, {
body: n.body,
icon: n.icon,
});
}));
});