gecko-dev/dom/interfaces/events/nsIDOMBeforeUnloadEvent.idl

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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 nsIDOMBeforeUnloadEvent interface is the interface for events
* sent to handlers of the "beforeunload" event. This event is
* non-standard. Interface derived from Microsoft IE's event
* implementation.
*
* http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/events.asp
*
*/
[builtinclass, uuid(ee7b8943-440e-4cc3-b25e-c17c8a821d8b)]
interface nsIDOMBeforeUnloadEvent : nsIDOMEvent
{
/**
* Attribute used to pass back a return value from a beforeunload
* handler
*/
attribute DOMString returnValue;
};