The focused
read-only property of the WindowClient
interface is a boolean value that indicates whether the current client has focus.
WindowClient.focused
Value
A boolean value.
Examples
self.addEventListener('notificationclick', function(event) { console.log('On notification click: ', event.notification.tag); event.notification.close(); // This looks to see if the current is already open and // focuses if it is event.waitUntil(clients.matchAll({ type: "window" }).then(function(clientList) { for (var i = 0; i < clientList.length; i++) { var client = clientList[i]; if (client.url == '/' && 'focus' in client) { if(!client.focused) return client.focus(); } } } if (clients.openWindow) return clients.openWindow('/'); })); });
Specifications
Specification |
---|
Service Workers 1 # client-focused |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
focused |
42
|
17
|
44
Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.
|
No
|
29
|
11.1
|
42
|
42
|
44
|
29
|
11.3
|
4.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/WindowClient/focused