gecko-dev/editor/base/PlaceholderTxn.h

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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 AggregatePlaceholderTxn_h__
#define AggregatePlaceholderTxn_h__
#include "EditAggregateTxn.h"
#define PLACEHOLDER_TXN_CID \
{/* {0CE9FB00-D9D1-11d2-86DE-000064657374} */ \
0x0CE9FB00, 0xD9D1, 0x11d2, \
{0x86, 0xde, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
/**
* An aggregate transaction that knows how to absorb all subsequent
* transactions with the same name. This transaction does not "Do" anything.
* But it absorbs other transactions via merge, and can undo/redo the
* transactions it has absorbed.
*/
class PlaceholderTxn : public EditAggregateTxn
{
public:
static const nsIID& GetCID() { static nsIID iid = PLACEHOLDER_TXN_CID; return iid; }
private:
PlaceholderTxn();
public:
virtual ~PlaceholderTxn();
NS_IMETHOD Do(void);
NS_IMETHOD Merge(PRBool *aDidMerge, nsITransaction *aTransaction);
NS_IMETHOD SetAbsorb(PRBool aAbsorb);
friend class TransactionFactory;
protected:
PRBool mAbsorb;
};
inline NS_IMETHODIMP PlaceholderTxn::SetAbsorb(PRBool aAbsorb)
{
mAbsorb = aAbsorb;
return NS_OK;
};
#endif