pjs/editor/base/nsEditorTxnLog.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 1.1 (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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsEditorTxnLog_h__
#define nsEditorTxnLog_h__
#include "nsITransaction.h"
#include "nsITransactionManager.h"
#include "nsITransactionListener.h"
class nsHTMLEditorLog;
/** implementation of a transaction listener object.
*
*/
class nsEditorTxnLog : public nsITransactionListener
{
private:
nsHTMLEditorLog *mEditorLog;
PRInt32 mIndentLevel;
PRInt32 mBatchCount;
public:
/** The default constructor.
*/
nsEditorTxnLog(nsHTMLEditorLog *aEditorLog=0);
/** The default destructor.
*/
virtual ~nsEditorTxnLog();
/* Macro for AddRef(), Release(), and QueryInterface() */
NS_DECL_ISUPPORTS
/* nsITransactionListener method implementations. */
NS_IMETHOD WillDo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, PRBool *aInterrupt);
NS_IMETHOD DidDo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, nsresult aDoResult);
NS_IMETHOD WillUndo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, PRBool *aInterrupt);
NS_IMETHOD DidUndo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, nsresult aUndoResult);
NS_IMETHOD WillRedo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, PRBool *aInterrupt);
NS_IMETHOD DidRedo(nsITransactionManager *aTxMgr, nsITransaction *aTransaction, nsresult aRedoResult);
NS_IMETHOD WillBeginBatch(nsITransactionManager *aTxMgr, PRBool *aInterrupt);
NS_IMETHOD DidBeginBatch(nsITransactionManager *aTxMgr, nsresult aResult);
NS_IMETHOD WillEndBatch(nsITransactionManager *aTxMgr, PRBool *aInterrupt);
NS_IMETHOD DidEndBatch(nsITransactionManager *aTxMgr, nsresult aResult);
NS_IMETHOD WillMerge(nsITransactionManager *aTxMgr, nsITransaction *aTopTransaction, nsITransaction *aTransaction, PRBool *aInterrupt);
NS_IMETHOD DidMerge(nsITransactionManager *aTxMgr, nsITransaction *aTopTransaction, nsITransaction *aTransaction, PRBool aDidMerge, nsresult aMergeResult);
private:
/* nsEditorTxnLog private methods. */
const char *GetString(nsITransaction *aTransaction, char *aBuffer, PRInt32 aBufLength);
nsresult PrintIndent(PRInt32 aIndentLevel);
nsresult Write(const char *aBuffer);
nsresult WriteInt(const char *aFormat, PRInt32 aInt);
nsresult Flush();
};
#endif // nsEditorTxnLog_h__