NotificationEvent

The parameter passed into the onnotificationclick handler, the NotificationEvent interface represents a notification click event that is dispatched on the ServiceWorkerGlobalScope of a ServiceWorker.

This interface inherits from the ExtendableEvent interface.

Constructor

NotificationEvent.NotificationEvent()

Creates a new NotificationEvent object.

Properties

Inherits properties from its ancestor, Event.

NotificationEvent.notification Read only

Returns a Notification object representing the notification that was clicked to fire the event.

NotificationEvent.action Read only

Returns the string ID of the notification button the user clicked. This value returns undefined if the user clicked the notification somewhere other than an action button, or the notification does not have a button.

Methods

Inherits methods from its parent, ExtendableEvent.

ExtendableEvent.waitUntil()

Extends the lifetime of the event. It is intended to be called in the install EventHandler for the installing worker and on the active EventHandler for the active worker.

Example

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

Specifications

Specification	Status	Comment
Notifications API The definition of 'NotificationEvent' in that specification.	Living Standard	Living standard.

Browser Compatibility

[1] Service workers (and Push) have been disabled in the Firefox 45 Extended Support Release (ESR.)