The Tor Browser / file revision

 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/.

  *

  * For more information on this interface please see

  * http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html

  *

  * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C

  * liability, trademark and document use rules apply.

  */

 [Constructor(DOMString typeArg, optional FocusEventInit focusEventInitDict)]

 interface FocusEvent : UIEvent {

   // Introduced in DOM Level 3:

   readonly attribute EventTarget?   relatedTarget;

 };

 dictionary FocusEventInit : UIEventInit {

     EventTarget? relatedTarget = null;

 };