gecko-dev/editor/base/EditTxn.h
buster%netscape.com c544a4698b * added TransactionFactory. Editor no longer allocates its own transactions. This gives us an oppurtunity for a recycler.
* added DeleteSelection to editor.  Doesn't work very well yet because selection is giving me random offsets into text content.
* lots of work in the various transactions.
1999-01-21 01:51:09 +00:00

61 lines
1.6 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 EditTxn_h__
#define EditTxn_h__
#include "nsITransaction.h"
class nsIDOMNode;
#define EDIT_TXN_IID \
{/* c5ea31b0-ac48-11d2-86d8-000064657374 */ \
0xc5ea31b0, 0xac48, 0x11d2, \
{0x86, 0xd8, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74} }
/**
* base class for all document editing transactions.
* provides default concrete behavior for all nsITransaction methods.
*/
class EditTxn : public nsITransaction
{
public:
NS_DECL_ISUPPORTS
EditTxn();
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);
};
#endif