gecko/intl/uconv/native/nsWinCEUConvService.cpp
2010-07-04 15:42:04 +03:00

443 lines
11 KiB
C++

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is WinCEUConvAdapter for Windows CE
*
* The Initial Developer of the Original Code is
* Doug Turner <dougt@meer.net>.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <windows.h>
#include "nsNativeUConvService.h"
#include "nsIUnicodeDecoder.h"
#include "nsIUnicodeEncoder.h"
#include "nsIPlatformCharset.h"
#include "nsIServiceManager.h"
#include "nsUCSupport.h"
#include "nsUTF8ToUnicode.h"
#include "nsUnicodeToUTF8.h"
#ifdef ALERT_DBG
void DisplayLastError(const char * msg)
{
int flags = MB_APPLMODAL | MB_TOPMOST | MB_SETFOREGROUND;
int error = GetLastError();
switch (error)
{
case ERROR_NO_UNICODE_TRANSLATION:
MessageBox(0, "ERROR_NO_UNICODE_TRANSLATION", msg, flags);
break;
case ERROR_INVALID_PARAMETER:
MessageBox(0, "ERROR_INVALID_PARAMETER", msg, flags);
break;
case ERROR_INVALID_FLAGS:
MessageBox(0, "ERROR_INVALID_FLAGS", msg, flags);
break;
case ERROR_INSUFFICIENT_BUFFER:
MessageBox(0, "ERROR_INSUFFICIENT_BUFFER", msg, flags);
break;
default:
MessageBox(0, "other...", msg, flags);
}
}
#endif
class WinCEUConvAdapter : public nsIUnicodeDecoder,
public nsIUnicodeEncoder
{
public:
WinCEUConvAdapter();
virtual ~WinCEUConvAdapter();
nsresult Init(const char* from, const char* to);
NS_DECL_ISUPPORTS;
// Decoder methods:
NS_IMETHOD Convert(const char * aSrc,
PRInt32 * aSrcLength,
PRUnichar * aDest,
PRInt32 * aDestLength);
NS_IMETHOD GetMaxLength(const char * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength);
NS_IMETHOD Reset();
virtual void SetInputErrorBehavior(PRInt32 aBehavior);
virtual PRUnichar GetCharacterForUnMapped();
// Encoder methods:
NS_IMETHOD Convert(const PRUnichar * aSrc,
PRInt32 * aSrcLength,
char * aDest,
PRInt32 * aDestLength);
NS_IMETHOD Finish(char * aDest, PRInt32 * aDestLength);
NS_IMETHOD GetMaxLength(const PRUnichar * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength);
// defined by the Decoder: NS_IMETHOD Reset();
NS_IMETHOD SetOutputErrorBehavior(PRInt32 aBehavior,
nsIUnicharEncoder * aEncoder,
PRUnichar aChar);
PRUint32 mCodepage;
};
NS_IMPL_ISUPPORTS2(WinCEUConvAdapter,
nsIUnicodeDecoder,
nsIUnicodeEncoder)
WinCEUConvAdapter::WinCEUConvAdapter()
{
mCodepage = -1;
}
WinCEUConvAdapter::~WinCEUConvAdapter()
{
}
typedef struct CharsetCodePageMap {
char charset[32];
PRUint16 codepage;
} CsCpMap;
static CsCpMap theCsCPMap[] = {
{"Big5", 950},
{"EUC-JP", 51932},
{"EUC-KR", 949},
{"GB2312", 936},
{"HZ-GB-2312 ", 52936},
{"IBM850", 850},
{"IBM852", 852},
{"IBM855", 855},
{"IBM857", 857},
{"IBM862", 862},
{"IBM866", 866},
{"IBM869", 869},
{"ISO-2022-JP", 50220},
{"ISO-2022-KR", 50225},
{"ISO-8859-15", 28605},
{"ISO-8859-1", 28591},
{"ISO-8859-2", 28592},
{"ISO-8859-3", 28593},
{"ISO-8859-4", 28594},
{"ISO-8859-5", 28595},
{"ISO-8859-6", 28596},
{"ISO-8859-7", 28597},
{"ISO-8859-8", 28598},
{"ISO-8859-8-I", 1255},
{"ISO-8859-9", 28599},
{"Shift_JIS", 932},
{"TIS-620", 874},
{"UTF-16", 1200},
{"UTF-7", 65000},
{"UTF-8", 65001},
{"gb_2312-80", 936},
{"ks_c_5601-1987", 949},
{"us-ascii", 20127},
{"windows-1250", 1250},
{"windows-1251", 1251},
{"windows-1252", 1252},
{"windows-1253", 1253},
{"windows-1254", 1254},
{"windows-1255", 1255},
{"windows-1256", 1256},
{"windows-1257", 1257},
{"windows-1258", 1258},
{"windows-874", 874},
{"windows-936", 936},
{"x-mac-arabic", 10004},
{"x-mac-ce", 10029},
{"x-mac-cyrillic", 10007},
{"x-mac-greek", 10006},
{"x-mac-hebrew", 10005},
{"x-mac-icelandi", 10079},
{"x-x-big5", 950},
{nsnull, 0}
};
nsresult
WinCEUConvAdapter::Init(const char* from, const char* to)
{
const char* cpstring = nsnull;
if (!strcmp(from, "UCS-2"))
{
cpstring = to;
}
else
{
cpstring = from;
}
int i = 0;
while (1)
{
if (theCsCPMap[i].charset[0] == nsnull)
break;
if (!strcmp(theCsCPMap[i].charset, cpstring))
{
mCodepage = theCsCPMap[i].codepage;
break;
}
i++;
}
if (mCodepage == -1)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
WinCEUConvAdapter::Convert(const char * aSrc,
PRInt32 * aSrcLength,
PRUnichar * aDest,
PRInt32 * aDestLength)
{
if (mCodepage == -1)
return NS_ERROR_FAILURE;
int count = MultiByteToWideChar(mCodepage,
0,
aSrc,
*aSrcLength,
aDest,
*aDestLength);
if (count == 0 && GetLastError() == ERROR_INVALID_PARAMETER)
{
// fall back on the current system Windows "ANSI" code page
count = MultiByteToWideChar(CP_ACP,
0,
aSrc,
*aSrcLength,
aDest,
*aDestLength);
}
#ifdef ALERT_DBG
if (count == 0)
DisplayLastError("MultiByteToWideChar");
#endif
*aDestLength = count;
*aSrcLength = count;
return NS_OK;
}
NS_IMETHODIMP
WinCEUConvAdapter::GetMaxLength(const char * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
if (mCodepage == -1 || aSrc == nsnull )
return NS_ERROR_FAILURE;
int count = MultiByteToWideChar(mCodepage,
MB_PRECOMPOSED,
aSrc,
aSrcLength,
NULL,
NULL);
if (count == 0 && GetLastError() == ERROR_INVALID_PARAMETER)
{
// fall back on the current system Windows "ANSI" code page
count = MultiByteToWideChar(CP_ACP,
MB_PRECOMPOSED,
aSrc,
aSrcLength,
NULL,
NULL);
}
#ifdef ALERT_DBG
if (count == 0)
DisplayLastError("MultiByteToWideChar (0)");
#endif
*aDestLength = count;
return NS_OK;
}
NS_IMETHODIMP
WinCEUConvAdapter::Reset()
{
return NS_OK;
}
void
WinCEUConvAdapter::SetInputErrorBehavior(PRInt32 aBehavior)
{
}
PRUnichar
WinCEUConvAdapter::GetCharacterForUnMapped()
{
return PRUnichar(0xfffd); // Unicode REPLACEMENT CHARACTER
}
// Encoder methods:
NS_IMETHODIMP
WinCEUConvAdapter::Convert(const PRUnichar * aSrc,
PRInt32 * aSrcLength,
char * aDest,
PRInt32 * aDestLength)
{
if (mCodepage == -1)
return NS_ERROR_FAILURE;
char * defaultChar = "?";
int count = WideCharToMultiByte(mCodepage,
0,
aSrc,
*aSrcLength,
aDest,
*aDestLength,
defaultChar,
NULL);
#ifdef ALERT_DBG
if (count == 0)
DisplayLastError("WideCharToMultiByte");
#endif
*aSrcLength = count;
*aDestLength = count;
return NS_OK;
}
NS_IMETHODIMP
WinCEUConvAdapter::Finish(char * aDest, PRInt32 * aDestLength)
{
*aDestLength = 0;
return NS_OK;
}
NS_IMETHODIMP
WinCEUConvAdapter::GetMaxLength(const PRUnichar * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
if (mCodepage == -1)
return NS_ERROR_FAILURE;
int count = WideCharToMultiByte(mCodepage,
0,
aSrc,
aSrcLength,
NULL,
NULL,
NULL,
NULL);
#ifdef ALERT_DBG
if (count == 0)
DisplayLastError("WideCharToMultiByte (0)");
#endif
*aDestLength = count;
return NS_OK;
}
// defined by the Decoder: NS_IMETHOD Reset();
NS_IMETHODIMP
WinCEUConvAdapter::SetOutputErrorBehavior(PRInt32 aBehavior,
nsIUnicharEncoder * aEncoder,
PRUnichar aChar)
{
return NS_OK;
}
// NativeUConvService
NS_IMPL_ISUPPORTS1(NativeUConvService,
nsINativeUConvService);
NS_IMETHODIMP
NativeUConvService::GetNativeConverter(const char* from,
const char* to,
nsISupports** aResult)
{
*aResult = nsnull;
if (!strcmp(from, "UCS-2") &&
!strcmp(to, "UTF-8") )
{
nsUnicodeToUTF8 * inst = new nsUnicodeToUTF8();
inst->AddRef();
*aResult = inst;
return NS_OK;
}
if (!strcmp(from, "UTF-8") &&
!strcmp(to, "UCS-2") )
{
nsUTF8ToUnicode * inst = new nsUTF8ToUnicode();
inst->AddRef();
*aResult = (nsIUnicodeDecoder*) inst;
return NS_OK;
}
WinCEUConvAdapter* ucl = new WinCEUConvAdapter();
if (!ucl)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv = ucl->Init(from, to);
if (NS_SUCCEEDED(rv)) {
NS_ADDREF(*aResult = (nsISupports*)(nsIUnicharEncoder*)ucl);
}
return rv;
}