webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 137 insertions, 0 deletions

diff --git a/Source/WebCore/Modules/indexeddb/shared/IDBCursorInfo.h b/Source/WebCore/Modules/indexeddb/shared/IDBCursorInfo.h
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+++ b/Source/WebCore/Modules/indexeddb/shared/IDBCursorInfo.h
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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.
+ */
+
+#pragma once
+
+#if ENABLE(INDEXED_DATABASE)
+
+#include "IDBKeyRangeData.h"
+#include "IDBResourceIdentifier.h"
+
+namespace WebCore {
+
+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(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;
+
+    IDBCursorInfo isolatedCopy() const;
+
+    WEBCORE_EXPORT IDBCursorInfo();
+    template<class Encoder> void encode(Encoder&) const;
+    template<class Decoder> static 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.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)