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120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsTransactionManager_h__
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#define nsTransactionManager_h__
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#include "prmon.h"
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#include "nsWeakReference.h"
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#include "nsITransactionManager.h"
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#include "nsCOMArray.h"
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#include "nsITransactionListener.h"
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#include "nsCycleCollectionParticipant.h"
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class nsITransaction;
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class nsITransactionListener;
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class nsTransactionItem;
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class nsTransactionStack;
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class nsTransactionRedoStack;
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/** implementation of a transaction manager object.
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*
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*/
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class nsTransactionManager : public nsITransactionManager
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, public nsSupportsWeakReference
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{
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private:
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PRInt32 mMaxTransactionCount;
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nsTransactionStack mDoStack;
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nsTransactionStack mUndoStack;
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nsTransactionRedoStack mRedoStack;
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nsCOMArray<nsITransactionListener> mListeners;
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PRMonitor *mMonitor;
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public:
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/** The default constructor.
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*/
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nsTransactionManager(PRInt32 aMaxTransactionCount=-1);
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/** The default destructor.
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*/
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virtual ~nsTransactionManager();
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/* Macro for AddRef(), Release(), and QueryInterface() */
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTransactionManager,
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nsITransactionManager)
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/* nsITransactionManager method implementations. */
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NS_DECL_NSITRANSACTIONMANAGER
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/* nsTransactionManager specific methods. */
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virtual nsresult ClearUndoStack(void);
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virtual nsresult ClearRedoStack(void);
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virtual nsresult WillDoNotify(nsITransaction *aTransaction, PRBool *aInterrupt);
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virtual nsresult DidDoNotify(nsITransaction *aTransaction, nsresult aExecuteResult);
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virtual nsresult WillUndoNotify(nsITransaction *aTransaction, PRBool *aInterrupt);
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virtual nsresult DidUndoNotify(nsITransaction *aTransaction, nsresult aUndoResult);
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virtual nsresult WillRedoNotify(nsITransaction *aTransaction, PRBool *aInterrupt);
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virtual nsresult DidRedoNotify(nsITransaction *aTransaction, nsresult aRedoResult);
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virtual nsresult WillBeginBatchNotify(PRBool *aInterrupt);
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virtual nsresult DidBeginBatchNotify(nsresult aResult);
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virtual nsresult WillEndBatchNotify(PRBool *aInterrupt);
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virtual nsresult DidEndBatchNotify(nsresult aResult);
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virtual nsresult WillMergeNotify(nsITransaction *aTop,
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nsITransaction *aTransaction,
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PRBool *aInterrupt);
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virtual nsresult DidMergeNotify(nsITransaction *aTop,
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nsITransaction *aTransaction,
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PRBool aDidMerge,
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nsresult aMergeResult);
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private:
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/* nsTransactionManager specific private methods. */
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virtual nsresult BeginTransaction(nsITransaction *aTransaction);
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virtual nsresult EndTransaction(void);
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virtual nsresult Lock(void);
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virtual nsresult Unlock(void);
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};
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#endif // nsTransactionManager_h__
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