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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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#ifndef IDBCursorInfo_h
#define IDBCursorInfo_h
#if ENABLE(INDEXED_DATABASE)
#include "IDBKeyRangeData.h"
#include "IDBResourceIdentifier.h"
namespace WebCore {
namespace IDBClient {
class IDBTransaction;
}
namespace IndexedDB {
enum class CursorDirection;
enum class CursorSource;
enum class CursorType;
}
struct IDBKeyRangeData;
enum class CursorDuplicity {
Duplicates,
NoDuplicates,
};
class IDBCursorInfo {
public:
static IDBCursorInfo objectStoreCursor(IDBClient::IDBTransaction&, uint64_t objectStoreIdentifier, const IDBKeyRangeData&, IndexedDB::CursorDirection);
static IDBCursorInfo indexCursor(IDBClient::IDBTransaction&, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const IDBKeyRangeData&, IndexedDB::CursorDirection, IndexedDB::CursorType);
IDBResourceIdentifier identifier() const { return m_cursorIdentifier; }
uint64_t sourceIdentifier() const { return m_sourceIdentifier; }
uint64_t objectStoreIdentifier() const { return m_objectStoreIdentifier; }
IndexedDB::CursorSource cursorSource() const { return m_source; }
IndexedDB::CursorDirection cursorDirection() const { return m_direction; }
IndexedDB::CursorType cursorType() const { return m_type; }
const IDBKeyRangeData& range() const { return m_range; }
bool isDirectionForward() const;
CursorDuplicity duplicity() const;
IDBCursorInfo isolatedCopy() const;
WEBCORE_EXPORT IDBCursorInfo();
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static bool decode(Decoder&, IDBCursorInfo&);
private:
IDBCursorInfo(IDBClient::IDBTransaction&, uint64_t objectStoreIdentifier, const IDBKeyRangeData&, IndexedDB::CursorDirection, IndexedDB::CursorType);
IDBCursorInfo(IDBClient::IDBTransaction&, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const IDBKeyRangeData&, IndexedDB::CursorDirection, IndexedDB::CursorType);
IDBCursorInfo(const IDBResourceIdentifier&, const IDBResourceIdentifier&, uint64_t, uint64_t, const IDBKeyRangeData&, IndexedDB::CursorSource, IndexedDB::CursorDirection, IndexedDB::CursorType);
IDBResourceIdentifier m_cursorIdentifier;
IDBResourceIdentifier m_transactionIdentifier;
uint64_t m_objectStoreIdentifier { 0 };
uint64_t m_sourceIdentifier { 0 };
IDBKeyRangeData m_range;
IndexedDB::CursorSource m_source;
IndexedDB::CursorDirection m_direction;
IndexedDB::CursorType m_type;
};
template<class Encoder>
void IDBCursorInfo::encode(Encoder& encoder) const
{
encoder << m_cursorIdentifier << m_transactionIdentifier << m_objectStoreIdentifier << m_sourceIdentifier << m_range;
encoder.encodeEnum(m_source);
encoder.encodeEnum(m_direction);
encoder.encodeEnum(m_type);
}
template<class Decoder>
bool IDBCursorInfo::decode(Decoder& decoder, IDBCursorInfo& info)
{
if (!decoder.decode(info.m_cursorIdentifier))
return false;
if (!decoder.decode(info.m_transactionIdentifier))
return false;
if (!decoder.decode(info.m_objectStoreIdentifier))
return false;
if (!decoder.decode(info.m_sourceIdentifier))
return false;
if (!decoder.decode(info.m_range))
return false;
if (!decoder.decodeEnum(info.m_source))
return false;
if (!decoder.decodeEnum(info.m_direction))
return false;
if (!decoder.decodeEnum(info.m_type))
return false;
return true;
}
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBCursorInfo_h
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