pjs/editor/base/DeleteRangeTxn.h

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1.7 KiB
C
Исходник Обычный вид История

/* -*- 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 DeleteRangeTxn_h__
#define DeleteRangeTxn_h__
#include "EditTxn.h"
#include "nsIDOMNode.h"
#include "nsCOMPtr.h"
class nsIDOMDocument;
class nsIDOMRange;
/**
* A transaction that deletes an entire range in the content tree
*/
class DeleteRangeTxn : public EditTxn
{
public:
DeleteRangeTxn(nsEditor *aEditor,
nsIDOMRange *aRange);
virtual ~DeleteRangeTxn();
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:
/** p1 in the range */
nsCOMPtr<nsIDOMNode> mStartParent;
/** p1 offset */
PRInt32 mStartOffset;
/** p2 in the range */
nsCOMPtr<nsIDOMNode> mEndParent;
/** p2 offset */
PRInt32 mEndOffset;
};
#endif