gecko-dev/editor/base/EditTxn.h

78 lines
2.1 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 1.1 (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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef EditTxn_h__
#define EditTxn_h__
#include "nsITransaction.h"
#include "nsITransactionDescription.h"
#include "nsCOMPtr.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 nsITransactionDescription
{
public:
static const nsIID& GetCID() { static nsIID iid = EDIT_TXN_CID; return iid; }
NS_DECL_ISUPPORTS
EditTxn();
virtual ~EditTxn();
NS_IMETHOD Do(void);
NS_IMETHOD Undo(void);
NS_IMETHOD Redo(void);
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);
enum { kTransactionID = 11100 };
NS_DECL_NSITRANSACTIONDESCRIPTION
nsString mLogDescription;
int mTransactionID;
};
#endif