intl/uconv/src/nsConverterInputStream.h

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  37
  38 #include "nsIInputStream.h"
  39 #include "nsIConverterInputStream.h"
  40 #include "nsIUnicharLineInputStream.h"
  41 #include "nsString.h"
  42 #include "nsReadLine.h"
  43
  44 #include "nsCOMPtr.h"
  45 #include "nsIUnicodeDecoder.h"
  46 #include "nsIByteBuffer.h"
  47 #include "nsIUnicharBuffer.h"
  48
  49 #define NS_CONVERTERINPUTSTREAM_CONTRACTID "@mozilla.org/intl/converter-input-stream;1"
  50
  51 // {2BC2AD62-AD5D-4b7b-A9DB-F74AE203C527}
  52 #define NS_CONVERTERINPUTSTREAM_CID \
  53   { 0x2bc2ad62, 0xad5d, 0x4b7b, \
  54    { 0xa9, 0xdb, 0xf7, 0x4a, 0xe2, 0x3, 0xc5, 0x27 } }
  55
  56
  57
  58 class nsConverterInputStream : public nsIConverterInputStream,
  59                                public nsIUnicharLineInputStream {
  60
  61  public:
  62     NS_DECL_ISUPPORTS
  63     NS_DECL_NSIUNICHARINPUTSTREAM
  64     NS_DECL_NSIUNICHARLINEINPUTSTREAM
  65     NS_DECL_NSICONVERTERINPUTSTREAM
  66
  67     nsConverterInputStream() :
  68         mLastErrorCode(NS_OK),
  69         mLeftOverBytes(0),
  70         mUnicharDataOffset(0),
  71         mUnicharDataLength(0),
  72         mReplacementChar(DEFAULT_REPLACEMENT_CHARACTER),
  73         mLineBuffer(nsnull) { }
  74
  75     virtual ~nsConverterInputStream() { Close(); }
  76
  77  private:
  78
  79
  80     PRUint32 Fill(nsresult *aErrorCode);
  81
  82     nsCOMPtr<nsIUnicodeDecoder> mConverter;
  83     nsCOMPtr<nsIByteBuffer> mByteData;
  84     nsCOMPtr<nsIUnicharBuffer> mUnicharData;
  85     nsCOMPtr<nsIInputStream> mInput;
  86
  87     nsresult  mLastErrorCode;
  88     PRUint32  mLeftOverBytes;
  89     PRUint32  mUnicharDataOffset;
  90     PRUint32  mUnicharDataLength;
  91     PRUnichar mReplacementChar;
  92
  93     nsLineBuffer<PRUnichar>* mLineBuffer;
  94 };