gecko-dev/editor/libeditor/base/EditAggregateTxn.h

68 строки
1.8 KiB
C++

/* -*- 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 EditAggregateTxn_h__
#define EditAggregateTxn_h__
#include "EditTxn.h"
#define EDIT_AGGREGATE_TXN_IID \
{/* 345921a0-ac49-11d2-86d8-000064657374 */ \
0x345921a0, 0xac49, 0x11d2, \
{0x86, 0xd8, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
class nsVoidArray;
/**
* base class for all document editing transactions that require aggregation.
* provides a list of child transactions.
*/
class EditAggregateTxn : public EditTxn
{
public:
EditAggregateTxn();
virtual ~EditAggregateTxn();
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);
virtual nsresult AppendChild(EditTxn *aTxn);
protected:
//XXX: if this was an nsISupportsArray, it would handle refcounting for us
nsVoidArray *mChildren;
};
#endif