/*

 * Copyright (C) 2010 Google 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 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 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 WebIDBKey_h

#define WebIDBKey_h

#include "WebCommon.h"

#include "WebPrivatePtr.h"

#include "WebString.h"

namespace WebCore { class IDBKey; }

namespace WebKit {

class WebIDBKey {

public:

    ~WebIDBKey() { reset(); }

    WEBKIT_API static WebIDBKey createNull();

    WEBKIT_API static WebIDBKey createInvalid();

    WebIDBKey(const WebString& string) { assign(string); }

    WebIDBKey(int32_t number) { assign(number); }

    WebIDBKey(const WebIDBKey& e) { assign(e); }

    WebIDBKey& operator=(const WebIDBKey& e)

    {

        assign(e);

        return *this;

    }

    WEBKIT_API void assign(const WebIDBKey&);

    WEBKIT_API void assignNull();

    WEBKIT_API void assign(const WebString&);

    WEBKIT_API void assign(int32_t);

    WEBKIT_API void assignInvalid();

    WEBKIT_API void reset();

    enum Type {

        NullType = 0,

        StringType,

        NumberType,

        // Types not in WebCore::IDBKey:

        InvalidType

    };

    WEBKIT_API Type type() const;

    WEBKIT_API WebString string() const; // Only valid for StringType.

    WEBKIT_API int32_t number() const; // Only valid for numberType.

#if WEBKIT_IMPLEMENTATION

    WebIDBKey(const WTF::PassRefPtr<WebCore::IDBKey>&);

    WebIDBKey& operator=(const WTF::PassRefPtr<WebCore::IDBKey>&);

    operator WTF::PassRefPtr<WebCore::IDBKey>() const;

#endif

private:

    WebIDBKey() { }

    WebPrivatePtr<WebCore::IDBKey> m_private;

};

} // namespace WebKit

#endif // WebIDBKey_h