зеркало из https://github.com/mozilla/gecko-dev.git
75 строки
2.1 KiB
C++
75 строки
2.1 KiB
C++
/* -*- 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
|