pjs/editor/libeditor/base/EditTxn.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef EditTxn_h__
#define EditTxn_h__
#include "nsITransaction.h"
class nsEditor;
class nsIDOMNode;
/**
* base class for all document editing transactions.
* provides access to the nsEditor that created this transaction.
*/
class EditTxn : public nsITransaction
{
public:
NS_DECL_ISUPPORTS
EditTxn(nsEditor *aEditor);
virtual nsresult Do(void);
virtual nsresult Undo(void);
virtual nsresult Redo(void);
virtual nsresult GetIsTransient(PRBool *aIsTransient);
virtual nsresult Merge(PRBool *aDidMerge, nsITransaction *aTransaction);
virtual nsresult Write(nsIOutputStream *aOutputStream);
virtual nsresult GetUndoString(nsString **aString);
virtual nsresult GetRedoString(nsString **aString);
protected:
nsEditor *mEditor;
};
#endif