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-rw-r--r--editor/txmgr/TransactionItem.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/editor/txmgr/TransactionItem.h b/editor/txmgr/TransactionItem.h
new file mode 100644
index 0000000000..6a8142a1fa
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+++ b/editor/txmgr/TransactionItem.h
@@ -0,0 +1,74 @@
+/* -*- 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 TransactionItem_h
+#define TransactionItem_h
+
+#include "nsCOMPtr.h"
+#include "nsCOMArray.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupportsImpl.h"
+#include "nscore.h"
+
+class nsITransaction;
+
+namespace mozilla {
+
+class TransactionManager;
+class TransactionStack;
+
+class TransactionItem final {
+ public:
+ explicit TransactionItem(nsITransaction* aTransaction);
+ NS_METHOD_(MozExternalRefCountType) AddRef();
+ NS_METHOD_(MozExternalRefCountType) Release();
+
+ NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(TransactionItem)
+
+ nsresult AddChild(TransactionItem& aTransactionItem);
+ already_AddRefed<nsITransaction> GetTransaction();
+ size_t NumberOfChildren() const {
+ return NumberOfUndoItems() + NumberOfRedoItems();
+ }
+ nsresult GetChild(size_t aIndex, TransactionItem** aChild);
+
+ MOZ_CAN_RUN_SCRIPT nsresult DoTransaction();
+ MOZ_CAN_RUN_SCRIPT nsresult
+ UndoTransaction(TransactionManager* aTransactionManager);
+ MOZ_CAN_RUN_SCRIPT nsresult
+ RedoTransaction(TransactionManager* aTransactionManager);
+
+ nsCOMArray<nsISupports>& GetData() { return mData; }
+
+ private:
+ MOZ_CAN_RUN_SCRIPT nsresult
+ UndoChildren(TransactionManager* aTransactionManager);
+ MOZ_CAN_RUN_SCRIPT nsresult
+ RedoChildren(TransactionManager* aTransactionManager);
+
+ MOZ_CAN_RUN_SCRIPT nsresult
+ RecoverFromUndoError(TransactionManager* aTransactionManager);
+ MOZ_CAN_RUN_SCRIPT nsresult
+ RecoverFromRedoError(TransactionManager* aTransactionManager);
+
+ size_t NumberOfUndoItems() const;
+ size_t NumberOfRedoItems() const;
+
+ void CleanUp();
+
+ ~TransactionItem();
+
+ nsCycleCollectingAutoRefCnt mRefCnt;
+ NS_DECL_OWNINGTHREAD
+
+ nsCOMArray<nsISupports> mData;
+ nsCOMPtr<nsITransaction> mTransaction;
+ TransactionStack* mUndoStack;
+ TransactionStack* mRedoStack;
+};
+
+} // namespace mozilla
+
+#endif // #ifndef TransactionItem_h