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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
* The PageTransitionEvent 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.
interface PageTransitionEvent : Event
constructor(DOMString type,
optional PageTransitionEventInit eventInitDict = {});
* 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;
// Whether the document is in the middle of a frame swap.
readonly attribute boolean inFrameSwap;
dictionary PageTransitionEventInit : EventInit
boolean persisted = false;
boolean inFrameSwap = false;