зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
4.4 KiB
C++
100 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corp.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Mike Pinkerton
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsPrimitiveHelpers_h___
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#define nsPrimitiveHelpers_h___
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#include "prtypes.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, void* aDataBuff,
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PRUint32 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, PRUint32 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 ( PRUnichar* inUnicode, PRInt32 inUnicodeLen,
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char** outPlainTextData, PRInt32* 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, PRInt32 inTextLen,
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PRUnichar** outUnicode, PRInt32* 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 nsMemory to dispose of the old buffer.
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static nsresult ConvertPlatformToDOMLinebreaks ( const char* inFlavor, void** ioData, PRInt32* ioLengthInBytes ) ;
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}; // class nsLinebreakHelpers
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#endif // nsPrimitiveHelpers_h___
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