1 /* 2 * Copyright (C) 2004, 2006, 2007, 2011 Apple Inc. All rights reserved. 3 * Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef TextCodecICU_h 28 #define TextCodecICU_h 29 30 #include "TextCodec.h" 31 #include "TextEncoding.h" 32 #include <unicode/utypes.h> 33 34 typedef struct UConverter UConverter; 35 36 namespace WebCore { 37 38 class TextCodecICU : public TextCodec { 39 public: 40 static void registerEncodingNames(EncodingNameRegistrar); 41 static void registerCodecs(TextCodecRegistrar); 42 43 virtual ~TextCodecICU(); 44 45 private: 46 TextCodecICU(const TextEncoding&); 47 static PassOwnPtr<TextCodec> create(const TextEncoding&, const void*); 48 49 virtual String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError); 50 virtual CString encode(const UChar*, size_t length, UnencodableHandling); 51 52 void createICUConverter() const; 53 void releaseICUConverter() const; needsGBKFallbacks()54 bool needsGBKFallbacks() const { return m_needsGBKFallbacks; } setNeedsGBKFallbacks(bool needsFallbacks)55 void setNeedsGBKFallbacks(bool needsFallbacks) { m_needsGBKFallbacks = needsFallbacks; } 56 57 int decodeToBuffer(UChar* buffer, UChar* bufferLimit, const char*& source, 58 const char* sourceLimit, int32_t* offsets, bool flush, UErrorCode& err); 59 60 TextEncoding m_encoding; 61 unsigned m_numBufferedBytes; 62 unsigned char m_bufferedBytes[16]; // bigger than any single multi-byte character 63 mutable UConverter* m_converterICU; 64 mutable bool m_needsGBKFallbacks; 65 }; 66 67 struct ICUConverterWrapper { ICUConverterWrapperICUConverterWrapper68 ICUConverterWrapper() : converter(0) { } 69 ~ICUConverterWrapper(); 70 71 UConverter* converter; 72 73 WTF_MAKE_NONCOPYABLE(ICUConverterWrapper); 74 }; 75 76 } // namespace WebCore 77 78 #endif // TextCodecICU_h 79