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84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsTransactionManager_h__
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#define nsTransactionManager_h__
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#include "nsCOMArray.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsTransactionStack.h"
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#include "nsISupportsImpl.h"
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#include "nsITransactionManager.h"
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#include "nsTransactionStack.h"
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#include "nsWeakReference.h"
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#include "nscore.h"
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class nsITransaction;
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class nsITransactionListener;
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/** implementation of a transaction manager object.
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*
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*/
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class nsTransactionManager final : public nsITransactionManager
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, public nsSupportsWeakReference
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{
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private:
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int32_t mMaxTransactionCount;
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nsTransactionStack mDoStack;
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nsTransactionStack mUndoStack;
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nsTransactionStack mRedoStack;
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nsCOMArray<nsITransactionListener> mListeners;
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/** The default destructor.
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*/
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virtual ~nsTransactionManager();
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public:
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/** The default constructor.
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*/
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explicit nsTransactionManager(int32_t aMaxTransactionCount=-1);
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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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already_AddRefed<nsITransaction> PeekUndoStack();
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already_AddRefed<nsITransaction> PeekRedoStack();
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virtual nsresult WillDoNotify(nsITransaction *aTransaction, bool *aInterrupt);
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virtual nsresult DidDoNotify(nsITransaction *aTransaction, nsresult aExecuteResult);
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virtual nsresult WillUndoNotify(nsITransaction *aTransaction, bool *aInterrupt);
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virtual nsresult DidUndoNotify(nsITransaction *aTransaction, nsresult aUndoResult);
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virtual nsresult WillRedoNotify(nsITransaction *aTransaction, bool *aInterrupt);
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virtual nsresult DidRedoNotify(nsITransaction *aTransaction, nsresult aRedoResult);
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virtual nsresult WillBeginBatchNotify(bool *aInterrupt);
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virtual nsresult DidBeginBatchNotify(nsresult aResult);
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virtual nsresult WillEndBatchNotify(bool *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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bool *aInterrupt);
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virtual nsresult DidMergeNotify(nsITransaction *aTop,
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nsITransaction *aTransaction,
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bool 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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nsISupports *aData);
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virtual nsresult EndTransaction(bool aAllowEmpty);
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};
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#endif // nsTransactionManager_h__
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