103 lines
3.0 KiB
Plaintext
103 lines
3.0 KiB
Plaintext
'use strict';
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importScripts("<%= "#{Discourse.asset_host}#{Discourse.base_path}/javascripts/workbox/workbox-sw.js" %>");
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workbox.setConfig({
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modulePathPrefix: "<%= "#{Discourse.asset_host}#{Discourse.base_path}/javascripts/workbox" %>",
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debug: false
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});
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var cacheVersion = "1";
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// Cache all GET requests, so Discourse can be used while offline
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workbox.routing.registerRoute(
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new RegExp('.*?'), // Matches all, GET is implicit
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new workbox.strategies.NetworkFirst({ // This will only use the cache when a network request fails
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cacheName: "discourse-" + cacheVersion,
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plugins: [
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new workbox.expiration.Plugin({
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maxAgeSeconds: 7* 24 * 60 * 60, // 7 days
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maxEntries: 500,
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purgeOnQuotaError: true, // safe to automatically delete if exceeding the available storage
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}),
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],
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})
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);
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var idleThresholdTime = 1000 * 10; // 10 seconds
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var lastAction = -1;
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function isIdle() {
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return lastAction + idleThresholdTime < Date.now();
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}
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function showNotification(title, body, icon, badge, tag, baseUrl, url) {
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var notificationOptions = {
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body: body,
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icon: icon,
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badge: badge,
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data: { url: url, baseUrl: baseUrl },
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tag: tag
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}
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return self.registration.showNotification(title, notificationOptions);
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}
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self.addEventListener('push', function(event) {
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var payload = event.data.json();
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if(!isIdle() && payload.hide_when_active) {
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return false;
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}
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event.waitUntil(
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self.registration.getNotifications({ tag: payload.tag }).then(function(notifications) {
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if (notifications && notifications.length > 0) {
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notifications.forEach(function(notification) {
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notification.close();
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});
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}
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return showNotification(payload.title, payload.body, payload.icon, payload.badge, payload.tag, payload.base_url, payload.url);
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})
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);
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});
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self.addEventListener('notificationclick', function(event) {
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// Android doesn't close the notification when you click on it
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// See: http://crbug.com/463146
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event.notification.close();
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var url = event.notification.data.url;
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var baseUrl = event.notification.data.baseUrl;
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// This looks to see if the current window is already open and
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// focuses if it is
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event.waitUntil(
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clients.matchAll({ type: "window" })
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.then(function(clientList) {
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var reusedClientWindow = clientList.some(function(client) {
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if (client.url === baseUrl + url && 'focus' in client) {
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client.focus();
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return true;
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}
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if ('postMessage' in client && 'focus' in client) {
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client.focus();
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client.postMessage({ url: url });
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return true;
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}
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return false;
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});
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if (!reusedClientWindow && clients.openWindow) return clients.openWindow(baseUrl + url);
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})
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);
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});
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self.addEventListener('message', function(event) {
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if('lastAction' in event.data){
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lastAction = event.data.lastAction;
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}});
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<% DiscoursePluginRegistry.service_workers.each do |js| %>
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<%=raw "#{File.read(js)}" %>
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<% end %>
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