WindowClient

实验性: 这是一项实验性技术
在将其用于生产之前，请仔细检查浏览器兼容性表格。

The WindowClient interface of the ServiceWorker API (en-US) represents the scope of a service worker client that is a document in a browser context, controlled by an active worker. The service worker client independently selects and uses a service worker for its own loading and sub-resources.

Methods

WindowClient inherits methods from its parent interface, Client.

WindowClient.focus() (en-US)

Gives user input focus to the current client.

WindowClient.navigate()

Loads a specified URL into a controlled client page.

Properties

WindowClient inherits properties from its parent interface, Client.

WindowClient.focused (en-US) 只读

A boolean that indicates whether the current client has focus.

WindowClient.visibilityState (en-US) 只读

Indicates the visibility of the current client. This value can be one of hidden, visible, prerender, or unloaded.

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
Service Workers
# windowclient

Browser compatibility

BCD tables only load in the browser

See also