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-rw-r--r--editor/txmgr/nsTransactionItem.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/editor/txmgr/nsTransactionItem.h b/editor/txmgr/nsTransactionItem.h
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+++ b/editor/txmgr/nsTransactionItem.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 nsTransactionItem_h__
+#define nsTransactionItem_h__
+
+#include "nsCOMPtr.h"
+#include "nsCOMArray.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupportsImpl.h"
+#include "nscore.h"
+
+class nsITransaction;
+class nsTransactionManager;
+class nsTransactionStack;
+
+class nsTransactionItem final
+{
+ nsCOMArray<nsISupports> mData;
+ nsCOMPtr<nsITransaction> mTransaction;
+ nsTransactionStack *mUndoStack;
+ nsTransactionStack *mRedoStack;
+
+public:
+
+ explicit nsTransactionItem(nsITransaction *aTransaction);
+ NS_METHOD_(MozExternalRefCountType) AddRef();
+ NS_METHOD_(MozExternalRefCountType) Release();
+
+ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsTransactionItem)
+
+ virtual nsresult AddChild(nsTransactionItem *aTransactionItem);
+ already_AddRefed<nsITransaction> GetTransaction();
+ virtual nsresult GetIsBatch(bool *aIsBatch);
+ virtual nsresult GetNumberOfChildren(int32_t *aNumChildren);
+ virtual nsresult GetChild(int32_t aIndex, nsTransactionItem **aChild);
+
+ virtual nsresult DoTransaction(void);
+ virtual nsresult UndoTransaction(nsTransactionManager *aTxMgr);
+ virtual nsresult RedoTransaction(nsTransactionManager *aTxMgr);
+
+ nsCOMArray<nsISupports>& GetData()
+ {
+ return mData;
+ }
+
+private:
+
+ virtual nsresult UndoChildren(nsTransactionManager *aTxMgr);
+ virtual nsresult RedoChildren(nsTransactionManager *aTxMgr);
+
+ virtual nsresult RecoverFromUndoError(nsTransactionManager *aTxMgr);
+ virtual nsresult RecoverFromRedoError(nsTransactionManager *aTxMgr);
+
+ virtual nsresult GetNumberOfUndoItems(int32_t *aNumItems);
+ virtual nsresult GetNumberOfRedoItems(int32_t *aNumItems);
+
+ void CleanUp();
+protected:
+ virtual ~nsTransactionItem();
+
+ nsCycleCollectingAutoRefCnt mRefCnt;
+ NS_DECL_OWNINGTHREAD
+};
+
+#endif // nsTransactionItem_h__