1998-12-01 18:35:49 +00:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://wwwt.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsTransactionItem_h__
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#define nsTransactionItem_h__
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#include "nsITransaction.h"
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#include "nsTransactionStack.h"
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class nsTransactionStack;
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class nsTransactionRedoStack;
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class nsTransactionItem
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{
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nsITransaction *mTransaction;
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nsTransactionStack *mUndoStack;
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nsTransactionRedoStack *mRedoStack;
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public:
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nsTransactionItem(nsITransaction *aTransaction);
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virtual ~nsTransactionItem();
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virtual nsresult AddChild(nsTransactionItem *aTransactionItem);
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1998-12-02 17:40:56 +00:00
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virtual nsresult GetTransaction(nsITransaction **aTransaction);
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1998-12-01 18:35:49 +00:00
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virtual nsresult Do(void);
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virtual nsresult Undo(void);
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virtual nsresult Redo(void);
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virtual nsresult Write(nsIOutputStream *aOutputStream);
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private:
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1998-12-04 21:50:09 +00:00
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virtual nsresult UndoChildren();
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virtual nsresult RedoChildren();
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virtual nsresult RecoverFromUndoError();
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virtual nsresult RecoverFromRedoError();
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1998-12-01 18:35:49 +00:00
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virtual nsresult GetNumberOfUndoItems(PRInt32 *aNumItems);
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virtual nsresult GetNumberOfRedoItems(PRInt32 *aNumItems);
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};
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#endif // nsTransactionItem_h__
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