gecko-dev/mailnews/base/util/nsMsgTxn.h

58 lines
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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, 1999 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsMsgTxn_h__
#define nsMsgTxn_h__
#include "nsITransaction.h"
#include "msgCore.h"
#define NS_MESSAGETRANSACTION_IID \
{ /* da621b30-1efc-11d3-abe4-00805f8ac968 */ \
0xda621b30, 0x1efc, 0x11d3, \
{ 0xab, 0xe4, 0x00, 0x80, 0x5f, 0x8a, 0xc9, 0x68 } }
/**
* base class for all message undo/redo transactions.
*/
class NS_MSG_BASE nsMsgTxn : public nsITransaction
{
NS_DECL_ISUPPORTS
nsMsgTxn();
virtual ~nsMsgTxn();
NS_IMETHOD Do(void);
NS_IMETHOD Undo(void) = 0;
NS_IMETHOD Redo(void) = 0;
NS_IMETHOD GetIsTransient(PRBool *aIsTransient);
NS_IMETHOD Merge(PRBool *aDidMerge, nsITransaction *aTransaction);
NS_IMETHOD Write(nsIOutputStream *aOutputStream);
NS_IMETHOD GetUndoString(nsString *aString);
NS_IMETHOD GetRedoString(nsString *aString);
};
#endif