/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * The Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Johnny Stenback <jst@mozilla.org> (original author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
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 * ***** END LICENSE BLOCK ***** */

#include "nsDOMBeforeUnloadEvent.h"
#include "nsContentUtils.h"

nsDOMBeforeUnloadEvent::nsDOMBeforeUnloadEvent(nsPresContext* aPresContext,
                                               nsBeforePageUnloadEvent* aEvent)
  : nsDOMEvent(aPresContext, aEvent ? aEvent :
               new nsBeforePageUnloadEvent(PR_FALSE,
                                           NS_BEFORE_PAGE_UNLOAD_EVENT))
{
  NS_ASSERTION(mEvent->eventStructType == NS_BEFORE_PAGE_UNLOAD_EVENT,
               "event type mismatch");

  if (aEvent) {
    mEventIsInternal = PR_FALSE;
  }
  else {
    mEventIsInternal = PR_TRUE;
    mEvent->time = PR_Now();
  }
}

nsDOMBeforeUnloadEvent::~nsDOMBeforeUnloadEvent() 
{
  if (mEventIsInternal &&
      mEvent->eventStructType == NS_BEFORE_PAGE_UNLOAD_EVENT) {
    delete static_cast<nsBeforePageUnloadEvent*>(mEvent);
    mEvent = nsnull;
  }
}

NS_IMPL_ADDREF_INHERITED(nsDOMBeforeUnloadEvent, nsDOMEvent)
NS_IMPL_RELEASE_INHERITED(nsDOMBeforeUnloadEvent, nsDOMEvent)

NS_INTERFACE_MAP_BEGIN(nsDOMBeforeUnloadEvent)
  NS_INTERFACE_MAP_ENTRY(nsIDOMBeforeUnloadEvent)
  NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(BeforeUnloadEvent)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEvent)

NS_IMETHODIMP
nsDOMBeforeUnloadEvent::SetReturnValue(const nsAString& aReturnValue)
{
  ((nsBeforePageUnloadEvent *)mEvent)->text = aReturnValue;

  return NS_OK;  // Don't throw an exception
}

NS_IMETHODIMP
nsDOMBeforeUnloadEvent::GetReturnValue(nsAString& aReturnValue)
{
  aReturnValue = ((nsBeforePageUnloadEvent *)mEvent)->text;

  return NS_OK;  // Don't throw an exception
}

nsresult NS_NewDOMBeforeUnloadEvent(nsIDOMEvent** aInstancePtrResult,
                                    nsPresContext* aPresContext,
                                    nsBeforePageUnloadEvent *aEvent) 
{
  nsDOMBeforeUnloadEvent* it =
    new nsDOMBeforeUnloadEvent(aPresContext, aEvent);
  if (!it) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return CallQueryInterface(it, aInstancePtrResult);
}
