1 /* 2 * Copyright (C) 2004, 2006, 2007 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 33 typedef struct UConverter UConverter; 34 35 namespace WebCore { 36 37 class TextCodecICU : public TextCodec { 38 public: 39 static void registerBaseEncodingNames(EncodingNameRegistrar); 40 static void registerBaseCodecs(TextCodecRegistrar); 41 42 static void registerExtendedEncodingNames(EncodingNameRegistrar); 43 static void registerExtendedCodecs(TextCodecRegistrar); 44 45 TextCodecICU(const TextEncoding&); 46 virtual ~TextCodecICU(); 47 48 virtual String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError); 49 virtual CString encode(const UChar*, size_t length, UnencodableHandling); 50 51 private: 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() 69 : converter(0) 70 { 71 } 72 ~ICUConverterWrapper(); 73 74 UConverter* converter; 75 }; 76 77 } // namespace WebCore 78 79 #endif // TextCodecICU_h 80