WindowClient.focus()

The focus() method of the WindowClient interface gives user input focus to the current client and returns a Promise that resolves to the existing WindowClient.

Syntax

focus()

Parameters

None.

Return value

A Promise that resolves to the existing WindowClient.

Examples

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)
        return client.focus();
    }
    if (clients.openWindow)
      return clients.openWindow('/');
  }));
});

Specifications

Specification
Service Workers
# client-focus

Browser compatibility

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