/*

 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.

 * Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>

 *

 * 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 COMPUTER, 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 COMPUTER, 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. 

 */

#ifndef TextCodecICU_h

#define TextCodecICU_h

#include "TextCodec.h"

#include "TextEncoding.h"

typedef struct UConverter UConverter;

namespace WebCore {

    class TextCodecICU : public TextCodec {

    public:

        static void registerBaseEncodingNames(EncodingNameRegistrar);

        static void registerBaseCodecs(TextCodecRegistrar);

        static void registerExtendedEncodingNames(EncodingNameRegistrar);

        static void registerExtendedCodecs(TextCodecRegistrar);

        TextCodecICU(const TextEncoding&);

        virtual ~TextCodecICU();

        virtual String decode(const char*, size_t length, bool flush = false);

        virtual CString encode(const UChar*, size_t length, bool allowEntities = false);

    private:

        void createICUConverter() const;

        void releaseICUConverter() const;

        bool needsGBKFallbacks() const { return m_needsGBKFallbacks; }

        void setNeedsGBKFallbacks(bool needsFallbacks) { m_needsGBKFallbacks = needsFallbacks; } 

        TextEncoding m_encoding;

        unsigned m_numBufferedBytes;

        unsigned char m_bufferedBytes[16]; // bigger than any single multi-byte character        

        mutable UConverter* m_converterICU;

        mutable bool m_needsGBKFallbacks;

    };

} // namespace WebCore

#endif // TextCodecICU_h