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/*
* Copyright (C) 2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(INDEXED_DATABASE)
#include "IDBCursorInfo.h"
#include "IDBKeyData.h"
#include "MemoryCursor.h"
#include <wtf/Optional.h>
namespace WebCore {
namespace IDBServer {
class MemoryObjectStore;
class MemoryObjectStoreCursor : public MemoryCursor {
public:
MemoryObjectStoreCursor(MemoryObjectStore&, const IDBCursorInfo&);
void objectStoreCleared();
void keyDeleted(const IDBKeyData&);
void keyAdded(IDBKeyDataSet::iterator);
private:
void currentData(IDBGetResult&) final;
void iterate(const IDBKeyData&, const IDBKeyData& primaryKey, uint32_t count, IDBGetResult&) final;
void setFirstInRemainingRange(IDBKeyDataSet&);
void setForwardIteratorFromRemainingRange(IDBKeyDataSet&);
void setReverseIteratorFromRemainingRange(IDBKeyDataSet&);
void incrementForwardIterator(IDBKeyDataSet&, const IDBKeyData&, uint32_t count);
void incrementReverseIterator(IDBKeyDataSet&, const IDBKeyData&, uint32_t count);
bool hasValidPosition() const;
MemoryObjectStore& m_objectStore;
IDBKeyRangeData m_remainingRange;
Optional<IDBKeyDataSet::iterator> m_iterator;
IDBKeyData m_currentPositionKey;
};
} // namespace IDBServer
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)