gecko-dev/editor/libeditor/base/EditTxn.h
2004-04-18 14:21:17 +00:00

84 lines
2.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
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* ***** END LICENSE BLOCK ***** */
#ifndef EditTxn_h__
#define EditTxn_h__
#include "nsITransaction.h"
#include "nsString.h"
#include "nsCOMPtr.h"
#include "nsPIEditorTransaction.h"
#define EDIT_TXN_CID \
{/* 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.
* EditTxns optionally have a name. This name is for internal purposes only,
* it is never seen by the user or by any external entity.
*/
class EditTxn : public nsITransaction
, public nsPIEditorTransaction
{
public:
static const nsIID& GetCID() { static const nsIID iid = EDIT_TXN_CID; return iid; }
NS_DECL_ISUPPORTS
EditTxn();
virtual ~EditTxn();
NS_IMETHOD DoTransaction(void);
NS_IMETHOD UndoTransaction(void);
NS_IMETHOD RedoTransaction(void);
NS_IMETHOD GetIsTransient(PRBool *aIsTransient);
NS_IMETHOD Merge(nsITransaction *aTransaction, PRBool *aDidMerge);
NS_IMETHOD GetTxnDescription(nsAString& aTxnDescription);
};
#endif