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-rw-r--r--editor/txmgr/nsTransactionManager.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/editor/txmgr/nsTransactionManager.h b/editor/txmgr/nsTransactionManager.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsTransactionManager_h__
+#define nsTransactionManager_h__
+
+#include "nsCOMArray.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsTransactionStack.h"
+#include "nsISupportsImpl.h"
+#include "nsITransactionManager.h"
+#include "nsTransactionStack.h"
+#include "nsWeakReference.h"
+#include "nscore.h"
+
+class nsITransaction;
+class nsITransactionListener;
+
+/** implementation of a transaction manager object.
+ *
+ */
+class nsTransactionManager final : public nsITransactionManager
+ , public nsSupportsWeakReference
+{
+private:
+
+ int32_t mMaxTransactionCount;
+ nsTransactionStack mDoStack;
+ nsTransactionStack mUndoStack;
+ nsTransactionStack mRedoStack;
+ nsCOMArray<nsITransactionListener> mListeners;
+
+ /** The default destructor.
+ */
+ virtual ~nsTransactionManager();
+
+public:
+
+ /** The default constructor.
+ */
+ explicit nsTransactionManager(int32_t aMaxTransactionCount=-1);
+
+ /* Macro for AddRef(), Release(), and QueryInterface() */
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTransactionManager,
+ nsITransactionManager)
+
+ /* nsITransactionManager method implementations. */
+ NS_DECL_NSITRANSACTIONMANAGER
+
+ already_AddRefed<nsITransaction> PeekUndoStack();
+ already_AddRefed<nsITransaction> PeekRedoStack();
+
+ virtual nsresult WillDoNotify(nsITransaction *aTransaction, bool *aInterrupt);
+ virtual nsresult DidDoNotify(nsITransaction *aTransaction, nsresult aExecuteResult);
+ virtual nsresult WillUndoNotify(nsITransaction *aTransaction, bool *aInterrupt);
+ virtual nsresult DidUndoNotify(nsITransaction *aTransaction, nsresult aUndoResult);
+ virtual nsresult WillRedoNotify(nsITransaction *aTransaction, bool *aInterrupt);
+ virtual nsresult DidRedoNotify(nsITransaction *aTransaction, nsresult aRedoResult);
+ virtual nsresult WillBeginBatchNotify(bool *aInterrupt);
+ virtual nsresult DidBeginBatchNotify(nsresult aResult);
+ virtual nsresult WillEndBatchNotify(bool *aInterrupt);
+ virtual nsresult DidEndBatchNotify(nsresult aResult);
+ virtual nsresult WillMergeNotify(nsITransaction *aTop,
+ nsITransaction *aTransaction,
+ bool *aInterrupt);
+ virtual nsresult DidMergeNotify(nsITransaction *aTop,
+ nsITransaction *aTransaction,
+ bool aDidMerge,
+ nsresult aMergeResult);
+
+private:
+
+ /* nsTransactionManager specific private methods. */
+ virtual nsresult BeginTransaction(nsITransaction *aTransaction,
+ nsISupports *aData);
+ virtual nsresult EndTransaction(bool aAllowEmpty);
+};
+
+#endif // nsTransactionManager_h__