pjs/editor/base/EditTxn.h

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/* -*- 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) 1998-1999 Netscape Communications Corporation. All Rights
* Reserved.
*/
#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