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Notification 接口的 onclick属性指定一个事件侦听器来接收 click 事件。

当用户点击一个显示的Notification时,会发生这些事件。

Syntax

Notification.onclick = function(event) { ... };

The default behavior is to move the focus to the viewport of the notification's related browsing context. If you don't want that behaviour, call preventDefault() on the event object.

Examples

In the following example, we use an onclick handler to open a webpage in a new tab (specified by the inclusion of the '_blank' parameter) once a notification is clicked:

notification.onclick = function(event) {
  event.preventDefault(); // prevent the browser from focusing the Notification's tab
  window.open('http://www.mozilla.org', '_blank');
}

Specifications

Specification Status Comment
Notifications API
onclick
Living Standard Living standard.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5webkit[1]
22
(Yes) 4.0 moz[2]
22
No support 25 6[3]
icon 5webkit[1]
22
(Yes) 4.0 moz[2]
22
No support 25 No support
Available in workers (Yes) (Yes) 41.0 (41.0) ? ? ?
silent 43.0 No support No support No support No support No support
noscreen, sticky No support No support No support No support No support No support
sound No support No support No support No support No support No support
renotify 50.0 No support No support No support No support No support
Promise-based Notification.requestPermission() 46.0 (Yes) 47.0 (47.0) ? 40 No support
vibrate, actions 53.0 No support     39  
badge 53.0 No support     39  
image 55.0 No support     ?  
Feature Android Android Webview Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ?

(Yes)

(Yes) 4.0moz[2]
22
1.0.1moz[2]
1.2
No support ? No support

(Yes)

icon ? (Yes) (Yes) 4.0moz[2]
22
1.0.1moz[2]
1.2
No support ? No support (Yes)
Available in workers ? (Yes) (Yes) 41.0 (41.0) ? ? ? ? (Yes)
silent No support 43.0 No support No support No support No support No support No support 43.0
noscreen, sticky No support No support No support No support No support No support No support No support No support
sound No support (Yes) No support No support No support No support No support No support (Yes)
renotify No support 50.0 No support No support No support No support No support No support No support
Promise-based Notification.requestPermission() ? ? (Yes) 47.0 (47.0) ? ? ? ? ?
vibrate, actions No support 53.0 No support       39   53.0
badge No support 53.0 No support       39   53.0
image No support No support No support       ?   55.0

[1] Before Chrome 22, the support for notification followed an old prefixed version of the specification and used the navigator.webkitNotifications object to instantiate a new notification.

Before Chrome 32, Notification.permission was not supported.

Before Chrome 42, service worker additions were not supported.

Starting in Chrome 49, notifications do not work in incognito mode.

[2] Prior to Firefox 22 (Firefox OS <1.2), the instantiation of a new notification must be done with the navigator.mozNotification object through its createNotification method.

Prior to Firefox 22 (Firefox OS <1.2), the Notification was displayed when calling the show method and supported only the click and close events.

Nick Desaulniers wrote a Notification shim to cover both newer and older implementations.

One particular Firefox OS issue is that you can pass a path to an icon to use in the notification, but if the app is packaged you cannot use a relative path like /my_icon.png. You also can't use window.location.origin + "/my_icon.png" because window.location.origin is null in packaged apps. The manifest origin field fixes this, but it is only available in Firefox OS 1.1+. A potential solution for supporting Firefox OS <1.1 is to pass an absolute URL to an externally hosted version of the icon. This is less than ideal as the notification is displayed immediately without the icon, then the icon is fetched, but it works on all versions of Firefox OS.

When using notifications  in a Firefox OS app, be sure to add the desktop-notification permission in your manifest file. Notifications can be used at any permission level, hosted or above: "permissions": { "desktop-notification": {} }

[3] Safari started to support notification with Safari 6, but only on Mac OSX 10.8+ (Mountain Lion).

See also

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