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* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef BackForwardList_h
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#define BackForwardList_h
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#include <wtf/Forward.h>
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#include <wtf/HashSet.h>
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#include <wtf/Vector.h>
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typedef Vector<RefPtr<HistoryItem> > HistoryItemVector;
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typedef HashSet<RefPtr<HistoryItem> > HistoryItemHashSet;
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class BackForwardList : public Shared<BackForwardList> {
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BackForwardList(Page*);
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Page* page() { return m_page; }
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void addItem(PassRefPtr<HistoryItem>);
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void goToItem(HistoryItem*);
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HistoryItem* backItem();
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HistoryItem* currentItem();
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HistoryItem* forwardItem();
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HistoryItem* itemAtIndex(int);
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void backListWithLimit(int, HistoryItemVector&);
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void forwardListWithLimit(int, HistoryItemVector&);
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void setCapacity(int);
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void setEnabled(bool);
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int forwardListCount();
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bool containsItem(HistoryItem*);
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void clearPageCache();
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void removeItem(HistoryItem*);
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HistoryItemVector& entries();
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HistoryItemVector m_entries;
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HistoryItemHashSet m_entryHash;
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}; //class BackForwardList
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}; //namespace WebCore
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#endif //BACKFORWARDLIST_H