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66 lines
2.9 KiB
C++
66 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsPrimitiveHelpers_h___
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#define nsPrimitiveHelpers_h___
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#include "nsError.h"
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#include "nscore.h"
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class nsISupports;
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class nsPrimitiveHelpers
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{
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public:
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// Given some data and the flavor it corresponds to, creates the appropriate
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// nsISupports* wrapper for passing across IDL boundaries. The length parameter
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// should not include the null if the data is null terminated.
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static void CreatePrimitiveForData ( const char* aFlavor, const void* aDataBuff,
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uint32_t aDataLen, nsISupports** aPrimitive ) ;
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// Given a nsISupports* primitive and the flavor it represents, creates a new data
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// buffer with the data in it. This data will be null terminated, but the length
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// parameter does not reflect that.
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static void CreateDataFromPrimitive ( const char* aFlavor, nsISupports* aPrimitive,
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void** aDataBuff, uint32_t aDataLen ) ;
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// Given a unicode buffer (flavor text/unicode), this converts it to plain text using
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// the appropriate platform charset encoding. |inUnicodeLen| is the length of the input
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// string, not the # of bytes in the buffer. |outPlainTextData| is null terminated,
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// but its length parameter, |outPlainTextLen|, does not reflect that.
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static nsresult ConvertUnicodeToPlatformPlainText ( char16_t* inUnicode, int32_t inUnicodeLen,
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char** outPlainTextData, int32_t* outPlainTextLen ) ;
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// Given a char buffer (flavor text/plaikn), this converts it to unicode using
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// the appropriate platform charset encoding. |outUnicode| is null terminated,
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// but its length parameter, |outUnicodeLen|, does not reflect that. |outUnicodeLen| is
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// the length of the string in characters, not bytes.
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static nsresult ConvertPlatformPlainTextToUnicode ( const char* inText, int32_t inTextLen,
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char16_t** outUnicode, int32_t* outUnicodeLen ) ;
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}; // class nsPrimitiveHelpers
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class nsLinebreakHelpers
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{
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public:
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// Given some data, convert from the platform linebreaks into the LF expected by the
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// DOM. This will attempt to convert the data in place, but the buffer may still need to
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// be reallocated regardless (disposing the old buffer is taken care of internally, see
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// the note below).
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//
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// NOTE: this assumes that it can use 'free' to dispose of the old buffer.
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static nsresult ConvertPlatformToDOMLinebreaks ( const char* inFlavor, void** ioData, int32_t* ioLengthInBytes ) ;
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}; // class nsLinebreakHelpers
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#endif // nsPrimitiveHelpers_h___
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