この記事は技術レビューを必要としています。ぜひご協力ください。
この記事はまだボランティアによって 日本語 に翻訳されていません。ぜひ MDN に参加して翻訳を手伝ってください!
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The ServiceWorkerGlobalScope.onpush
event of the ServiceWorkerGlobalScope
interface is fired whenever a push message is received by a service worker via a push server.
Syntax
ServiceWorkerGlobalScope.onpush = function(PushEvent) { ... } self.addEventListener('push', function(PushEvent) { ... })
Example
The following example takes data from a PushEvent
and displays it on all of the service worker's clients. The data payload of the push message is available in the event object's data
property (PushEvent.data
, which contains a PushMessageData
object.)
self.addEventListener('push', function(event) { if (!(self.Notification && self.notification.permission === 'granted')) { return; } var data = {}; if (event.data) { data = event.data.json(); } var title = data.title || "Something Has Happened"; var message = data.message || "Here's something you might want to check out."; var icon = "images/new-notification.png"; var notification = new Notification(title, { body: message, tag: 'simple-push-demo-notification', icon: icon }); notification.addEventListener('click', function() { if (clients.openWindow) { clients.openWindow('https://example.blog.com/2015/03/04/something-new.html'); } }; });
Specifications
Specification | Status | Comment |
---|---|---|
Push API The definition of 'onpush' in that specification. |
Working Draft | Initial definition. This event is specified in the Push API, but accessed through ServiceWorkerGlobalScope . |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 42.0 | 44.0 (44.0)[1] | No support | ? | No support |
Feature | Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|
Basic support | ? | 44.0 (44.0) | (Yes) | No support | ? | No support | 42.0 |
[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)