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 /* -*- 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/. */

 #include "nsIDOMEvent.idl"

 /**

  * The nsIDOMPageTransitionEvent interface is used for the pageshow and

  * pagehide events, which are generic events that apply to both page

  * load/unload and saving/restoring a document from session history.

  */

 [scriptable, builtinclass, uuid(8a69a3d6-c7da-4caa-993c-7f9583d9f896)]

 interface nsIDOMPageTransitionEvent : nsIDOMEvent

 {

   /**

    * Set to true if the document has been or will be persisted across

    * firing of the event.  For example, if a document is being cached in

    * session history, |persisted| is true for the PageHide event.

    */

   readonly attribute boolean persisted;

   /* Initialize a new pageshow or pagehide event. */

   void initPageTransitionEvent(in DOMString typeArg,

                                in boolean canBubbleArg,

                                in boolean canCancelArg,

                                in boolean persisted);

 };