WindowClient: focused-Eigenschaft

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

Hinweis: Diese Funktion ist nur in Service Workers verfügbar.

Die focused schreibgeschützte Eigenschaft des WindowClient-Interfaces ist ein boolescher Wert, der angibt, ob der aktuelle Client den Fokus hat.

Wert

Ein boolescher Wert.

Beispiele

js
self.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("/");
      }),
  );
});

Spezifikationen

Specification
Service Workers
# client-focused

Browser-Kompatibilität

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