WindowClient: focused プロパティ

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.

focusedWindowClient インターフェイスの読み取り専用プロパティで、現在のクライアントにフォーカスがあるかどうかを示す論理値です。

論理値です。

js
self.addEventListener("notificationclick", (event) => {
  console.log("On notification click: ", event.notification.tag);
  event.notification.close();

  // これは、クライアントが既に開いているかどうかを確認し、
  // 開いている場合にフォーカスを合わせます
  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("/");
      }),
  );
});

仕様書

Specification
Service Workers
# client-focused

ブラウザーの互換性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
focused

Legend

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Full support
Full support
No support
No support