| /* |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include "IDBKeyRangeData.h" |
| #include "IDBResourceIdentifier.h" |
| |
| namespace WebCore { |
| |
| class IDBTransaction; |
| |
| namespace IndexedDB { |
| enum class CursorDirection : uint8_t; |
| enum class CursorSource : bool; |
| enum class CursorType : bool; |
| } |
| |
| struct IDBKeyRangeData; |
| |
| enum class CursorDuplicity { |
| Duplicates, |
| NoDuplicates, |
| }; |
| |
| class IDBCursorInfo { |
| public: |
| static IDBCursorInfo objectStoreCursor(IDBTransaction&, uint64_t objectStoreIdentifier, const IDBKeyRangeData&, IndexedDB::CursorDirection, IndexedDB::CursorType); |
| static IDBCursorInfo indexCursor(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; |
| |
| WEBCORE_EXPORT IDBCursorInfo isolatedCopy() const; |
| |
| WEBCORE_EXPORT IDBCursorInfo(); |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static WARN_UNUSED_RETURN bool decode(Decoder&, IDBCursorInfo&); |
| |
| #if !LOG_DISABLED |
| String loggingString() const; |
| #endif |
| |
| private: |
| IDBCursorInfo(IDBTransaction&, uint64_t objectStoreIdentifier, const IDBKeyRangeData&, IndexedDB::CursorDirection, IndexedDB::CursorType); |
| IDBCursorInfo(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 << m_source; |
| encoder << m_direction; |
| encoder << 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.decode(info.m_source)) |
| return false; |
| |
| if (!decoder.decode(info.m_direction)) |
| return false; |
| |
| if (!decoder.decode(info.m_type)) |
| return false; |
| |
| return true; |
| } |
| |
| } // namespace WebCore |