Baseline Widely available
Note: This feature is only available in Service Workers.
The focused
read-only property of the WindowClient
interface is a boolean value that indicates whether the current client has focus.
A boolean value.
Examplesself.addEventListener("notificationclick", (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((clientList) => {
for (const client of clientList) {
if (client.url === "/" && "focus" in client) {
if (!client.focused) return client.focus();
}
}
if (clients.openWindow) return clients.openWindow("/");
}),
);
});
Specifications Browser compatibility
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4