author Boris Zbarsky <bzbarsky@mit.edu>
Thu, 15 Jul 2010 13:49:28 -0400
changeset 47703 5d3c3d5c71bc03965fd60fb8cf6d94548883972f
parent 28154 c7fb0978d1ee0f12e6aac22225da19e2c53da679
child 88160 7546dd13db9dfa9a7d78ffb9797d7be3917067f3
permissions -rw-r--r--
Backing out rev b567a93a5086 (bug 558306) to fix test orange

/* -*- 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
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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.
 * ***** END LICENSE BLOCK ***** */

#ifndef nsTransactionStack_h__
#define nsTransactionStack_h__

#include "nsDeque.h"

class nsTransactionItem;

class nsTransactionStack
  nsDeque mQue;


  virtual ~nsTransactionStack();

  virtual nsresult Push(nsTransactionItem *aTransactionItem);
  virtual nsresult Pop(nsTransactionItem **aTransactionItem);
  virtual nsresult PopBottom(nsTransactionItem **aTransactionItem);
  virtual nsresult Peek(nsTransactionItem **aTransactionItem);
  virtual nsresult GetItem(PRInt32 aIndex, nsTransactionItem **aTransactionItem);
  virtual nsresult Clear(void);
  virtual nsresult GetSize(PRInt32 *aStackSize);

  void DoUnlink() { Clear(); }
  void DoTraverse(nsCycleCollectionTraversalCallback &cb);

class nsTransactionRedoStack: public nsTransactionStack

  virtual ~nsTransactionRedoStack();
  virtual nsresult Clear(void);

#endif // nsTransactionStack_h__