| /* |
| * 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) |