intl/uconv/nsConverterInputStream.h

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsConverterInputStream_h
   7 #define nsConverterInputStream_h
   8
   9 #include "nsIInputStream.h"
  10 #include "nsIConverterInputStream.h"
  11 #include "nsIUnicharLineInputStream.h"
  12 #include "nsTArray.h"
  13 #include "nsAutoPtr.h"
  14 #include "nsCOMPtr.h"
  15 #include "nsIUnicodeDecoder.h"
  16 #include "nsReadLine.h"
  17
  18 #define NS_CONVERTERINPUTSTREAM_CONTRACTID "@mozilla.org/intl/converter-input-stream;1"
  19
  20 // {2BC2AD62-AD5D-4b7b-A9DB-F74AE203C527}
  21 #define NS_CONVERTERINPUTSTREAM_CID \
  22   { 0x2bc2ad62, 0xad5d, 0x4b7b, \
  23    { 0xa9, 0xdb, 0xf7, 0x4a, 0xe2, 0x3, 0xc5, 0x27 } }
  24
  25
  26
  27 class nsConverterInputStream : public nsIConverterInputStream,
  28                                public nsIUnicharLineInputStream {
  29
  30  public:
  31     NS_DECL_ISUPPORTS
  32     NS_DECL_NSIUNICHARINPUTSTREAM
  33     NS_DECL_NSIUNICHARLINEINPUTSTREAM
  34     NS_DECL_NSICONVERTERINPUTSTREAM
  35
  36     nsConverterInputStream() :
  37         mLastErrorCode(NS_OK),
  38         mLeftOverBytes(0),
  39         mUnicharDataOffset(0),
  40         mUnicharDataLength(0),
  41         mReplacementChar(DEFAULT_REPLACEMENT_CHARACTER),
  42         mLineBuffer(nullptr) { }
  43
  44  private:
  45     virtual ~nsConverterInputStream() { Close(); }
  46
  47     uint32_t Fill(nsresult *aErrorCode);
  48
  49     nsCOMPtr<nsIUnicodeDecoder> mConverter;
  50     FallibleTArray<char> mByteData;
  51     FallibleTArray<char16_t> mUnicharData;
  52     nsCOMPtr<nsIInputStream> mInput;
  53
  54     nsresult  mLastErrorCode;
  55     uint32_t  mLeftOverBytes;
  56     uint32_t  mUnicharDataOffset;
  57     uint32_t  mUnicharDataLength;
  58     char16_t mReplacementChar;
  59
  60     nsAutoPtr<nsLineBuffer<char16_t> > mLineBuffer;
  61 };
  62
  63 #endif
  64