The Tor Browser: intl/unicharutil/src/nsSaveAsCharset.h@fc2d59ddac77

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     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/. */

     6 #ifndef nsSaveAsCharset_h__

     7 #define nsSaveAsCharset_h__

     9 #include "nsStringFwd.h"

    10 #include "nsTArray.h"

    11 #include "nsISaveAsCharset.h"

    14 #define MASK_FALLBACK(a) (nsISaveAsCharset::mask_Fallback & (a))

    15 #define MASK_ENTITY(a) (nsISaveAsCharset::mask_Entity & (a))

    16 #define MASK_CHARSET_FALLBACK(a) (nsISaveAsCharset::mask_CharsetFallback & (a))

    17 #define ATTR_NO_FALLBACK(a) (nsISaveAsCharset::attr_FallbackNone == MASK_FALLBACK(a) && \

    18                              nsISaveAsCharset::attr_EntityAfterCharsetConv != MASK_ENTITY(a))

    20 class nsIUnicodeEncoder;

    21 class nsIEntityConverter;

    23 class nsSaveAsCharset : public nsISaveAsCharset

    24 {

    25 public:

    27 	//

    28 	// implementation methods

    29 	//

    30   nsSaveAsCharset();

    31   virtual ~nsSaveAsCharset();

    33 	//

    34 	// nsISupports

    35 	//

    36 	NS_DECL_ISUPPORTS

    38 	//

    39 	// nsIEntityConverter

    40 	//

    41   NS_IMETHOD Init(const char *charset, uint32_t attr, uint32_t entityVersion);

    43   NS_IMETHOD Convert(const char16_t *inString, char **_retval);

    45   NS_IMETHODIMP GetCharset(char * *aCharset);

    47 protected:

    49   NS_IMETHOD DoCharsetConversion(const char16_t *inString, char **outString);

    51   NS_IMETHOD DoConversionFallBack(uint32_t inUCS4, char *outString, int32_t bufferLength);

    53   // do the fallback, reallocate the buffer if necessary

    54   // need to pass destination buffer info (size, current position and estimation of rest of the conversion)

    55   NS_IMETHOD HandleFallBack(uint32_t character, char **outString, int32_t *bufferLength,

    56                             int32_t *currentPos, int32_t estimatedLength);

    58   nsresult SetupUnicodeEncoder(const char* charset);

    60   nsresult SetupCharsetList(const char *charsetList);

    62   const char * GetNextCharset();

    64   uint32_t mAttribute;                    // conversion attribute

    65   uint32_t mEntityVersion;                // see nsIEntityConverter

    66   nsCOMPtr<nsIUnicodeEncoder> mEncoder;   // encoder (convert from unicode)

    67   nsCOMPtr<nsIEntityConverter> mEntityConverter;

    68   nsTArray<nsCString> mCharsetList;

    69   int32_t        mCharsetListIndex;

    70 };

    72 #endif

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