1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/editor/txmgr/src/nsTransactionStack.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,39 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsTransactionStack_h__
1.10 +#define nsTransactionStack_h__
1.11 +
1.12 +#include <deque>
1.13 +#include "nsAutoPtr.h"
1.14 +
1.15 +class nsCycleCollectionTraversalCallback;
1.16 +class nsTransactionItem;
1.17 +
1.18 +class nsTransactionStack
1.19 +{
1.20 +public:
1.21 + enum Type { FOR_UNDO, FOR_REDO };
1.22 +
1.23 + explicit nsTransactionStack(Type aType);
1.24 + ~nsTransactionStack();
1.25 +
1.26 + void Push(nsTransactionItem *aTransactionItem);
1.27 + already_AddRefed<nsTransactionItem> Pop();
1.28 + already_AddRefed<nsTransactionItem> PopBottom();
1.29 + already_AddRefed<nsTransactionItem> Peek();
1.30 + already_AddRefed<nsTransactionItem> GetItem(int32_t aIndex);
1.31 + void Clear();
1.32 + int32_t GetSize() { return mDeque.size(); }
1.33 +
1.34 + void DoUnlink() { Clear(); }
1.35 + void DoTraverse(nsCycleCollectionTraversalCallback &cb);
1.36 +
1.37 +private:
1.38 + std::deque<nsRefPtr<nsTransactionItem> > mDeque;
1.39 + const Type mType;
1.40 +};
1.41 +
1.42 +#endif // nsTransactionStack_h__
