зеркало из https://github.com/mozilla/pjs.git
440 строки
11 KiB
C++
440 строки
11 KiB
C++
/* ***** 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 WinCEUConvAdapter for Windows CE
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*
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* The Initial Developer of the Original Code is
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* Doug Turner <dougt@meer.net>.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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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#include <windows.h>
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#include "nsNativeUConvService.h"
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#include "nsIUnicodeDecoder.h"
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#include "nsIUnicodeEncoder.h"
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#include "nsICharRepresentable.h"
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#include "nsIPlatformCharset.h"
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#include "nsIServiceManager.h"
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#include "nsUCSupport.h"
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#include "nsUTF8ToUnicode.h"
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#include "nsUnicodeToUTF8.h"
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#ifdef ALERT_DBG
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void DisplayLastError(const char * msg)
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{
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int flags = MB_APPLMODAL | MB_TOPMOST | MB_SETFOREGROUND;
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int error = GetLastError();
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switch (error)
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{
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case ERROR_NO_UNICODE_TRANSLATION:
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MessageBox(0, "ERROR_NO_UNICODE_TRANSLATION", msg, flags);
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break;
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case ERROR_INVALID_PARAMETER:
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MessageBox(0, "ERROR_INVALID_PARAMETER", msg, flags);
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break;
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case ERROR_INVALID_FLAGS:
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MessageBox(0, "ERROR_INVALID_FLAGS", msg, flags);
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break;
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case ERROR_INSUFFICIENT_BUFFER:
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MessageBox(0, "ERROR_INSUFFICIENT_BUFFER", msg, flags);
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break;
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default:
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MessageBox(0, "other...", msg, flags);
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}
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}
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#endif
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class WinCEUConvAdapter : public nsIUnicodeDecoder,
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public nsIUnicodeEncoder,
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public nsICharRepresentable
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{
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public:
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WinCEUConvAdapter();
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virtual ~WinCEUConvAdapter();
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nsresult Init(const char* from, const char* to);
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NS_DECL_ISUPPORTS;
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// Decoder methods:
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NS_IMETHOD Convert(const char * aSrc,
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PRInt32 * aSrcLength,
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PRUnichar * aDest,
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PRInt32 * aDestLength);
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NS_IMETHOD GetMaxLength(const char * aSrc,
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PRInt32 aSrcLength,
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PRInt32 * aDestLength);
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NS_IMETHOD Reset();
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// Encoder methods:
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NS_IMETHOD Convert(const PRUnichar * aSrc,
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PRInt32 * aSrcLength,
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char * aDest,
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PRInt32 * aDestLength);
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NS_IMETHOD Finish(char * aDest, PRInt32 * aDestLength);
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NS_IMETHOD GetMaxLength(const PRUnichar * aSrc,
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PRInt32 aSrcLength,
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PRInt32 * aDestLength);
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// defined by the Decoder: NS_IMETHOD Reset();
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NS_IMETHOD SetOutputErrorBehavior(PRInt32 aBehavior,
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nsIUnicharEncoder * aEncoder,
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PRUnichar aChar);
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NS_IMETHOD FillInfo(PRUint32* aInfo);
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PRUint32 mCodepage;
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};
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NS_IMPL_ISUPPORTS3(WinCEUConvAdapter,
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nsIUnicodeDecoder,
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nsIUnicodeEncoder,
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nsICharRepresentable)
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WinCEUConvAdapter::WinCEUConvAdapter()
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{
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mCodepage = -1;
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}
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WinCEUConvAdapter::~WinCEUConvAdapter()
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{
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}
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typedef struct CharsetCodePageMap {
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char charset[32];
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PRUint16 codepage;
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} CsCpMap;
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static CsCpMap theCsCPMap[] = {
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{"Big5", 950},
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{"EUC-JP", 51932},
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{"EUC-KR", 949},
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{"GB2312", 936},
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{"HZ-GB-2312 ", 52936},
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{"IBM850", 850},
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{"IBM852", 852},
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{"IBM855", 855},
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{"IBM857", 857},
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{"IBM862", 862},
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{"IBM866", 866},
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{"IBM869", 869},
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{"ISO-2022-JP", 50220},
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{"ISO-2022-KR", 50225},
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{"ISO-8859-15", 28605},
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{"ISO-8859-1", 28591},
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{"ISO-8859-2", 28592},
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{"ISO-8859-3", 28593},
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{"ISO-8859-4", 28594},
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{"ISO-8859-5", 28595},
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{"ISO-8859-6", 28596},
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{"ISO-8859-7", 28597},
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{"ISO-8859-8", 28598},
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{"ISO-8859-8-I", 1255},
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{"ISO-8859-9", 28599},
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{"Shift_JIS", 932},
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{"TIS-620", 874},
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{"UTF-16", 1200},
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{"UTF-7", 65000},
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{"UTF-8", 65001},
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{"gb_2312-80", 936},
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{"ks_c_5601-1987", 949},
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{"us-ascii", 20127},
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{"windows-1250", 1250},
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{"windows-1251", 1251},
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{"windows-1252", 1252},
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{"windows-1253", 1253},
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{"windows-1254", 1254},
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{"windows-1255", 1255},
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{"windows-1256", 1256},
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{"windows-1257", 1257},
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{"windows-1258", 1258},
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{"windows-874", 874},
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{"windows-936", 936},
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{"x-mac-arabic", 10004},
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{"x-mac-ce", 10029},
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{"x-mac-cyrillic", 10007},
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{"x-mac-greek", 10006},
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{"x-mac-hebrew", 10005},
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{"x-mac-icelandi", 10079},
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{"x-x-big5", 950},
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{nsnull, 0}
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};
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nsresult
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WinCEUConvAdapter::Init(const char* from, const char* to)
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{
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const char* cpstring = nsnull;
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if (!strcmp(from, "UCS-2"))
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{
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cpstring = to;
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}
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else
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{
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cpstring = from;
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}
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int i = 0;
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while (1)
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{
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if (theCsCPMap[i].charset[0] == nsnull)
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break;
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if (!strcmp(theCsCPMap[i].charset, cpstring))
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{
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mCodepage = theCsCPMap[i].codepage;
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break;
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}
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i++;
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}
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if (mCodepage == -1)
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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NS_IMETHODIMP
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WinCEUConvAdapter::Convert(const char * aSrc,
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PRInt32 * aSrcLength,
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PRUnichar * aDest,
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PRInt32 * aDestLength)
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{
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if (mCodepage == -1)
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return NS_ERROR_FAILURE;
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int count = MultiByteToWideChar(mCodepage,
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0,
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aSrc,
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*aSrcLength,
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aDest,
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*aDestLength);
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if (count == 0 && GetLastError() == ERROR_INVALID_PARAMETER)
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{
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// fall back on the current system Windows "ANSI" code page
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count = MultiByteToWideChar(CP_ACP,
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0,
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aSrc,
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*aSrcLength,
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aDest,
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*aDestLength);
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}
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#ifdef ALERT_DBG
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if (count == 0)
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DisplayLastError("MultiByteToWideChar");
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#endif
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*aDestLength = count;
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*aSrcLength = count;
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return NS_OK;
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}
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NS_IMETHODIMP
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WinCEUConvAdapter::GetMaxLength(const char * aSrc,
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PRInt32 aSrcLength,
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PRInt32 * aDestLength)
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{
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if (mCodepage == -1 || aSrc == nsnull )
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return NS_ERROR_FAILURE;
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int count = MultiByteToWideChar(mCodepage,
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MB_PRECOMPOSED,
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aSrc,
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aSrcLength,
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NULL,
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NULL);
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if (count == 0 && GetLastError() == ERROR_INVALID_PARAMETER)
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{
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// fall back on the current system Windows "ANSI" code page
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count = MultiByteToWideChar(CP_ACP,
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MB_PRECOMPOSED,
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aSrc,
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aSrcLength,
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NULL,
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NULL);
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}
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#ifdef ALERT_DBG
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if (count == 0)
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DisplayLastError("MultiByteToWideChar (0)");
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#endif
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*aDestLength = count;
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return NS_OK;
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}
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NS_IMETHODIMP
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WinCEUConvAdapter::Reset()
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{
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return NS_OK;
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}
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// Encoder methods:
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NS_IMETHODIMP
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WinCEUConvAdapter::Convert(const PRUnichar * aSrc,
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PRInt32 * aSrcLength,
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char * aDest,
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PRInt32 * aDestLength)
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{
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if (mCodepage == -1)
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return NS_ERROR_FAILURE;
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char * defaultChar = "?";
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int count = WideCharToMultiByte(mCodepage,
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0,
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aSrc,
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*aSrcLength,
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aDest,
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*aDestLength,
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defaultChar,
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NULL);
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#ifdef ALERT_DBG
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if (count == 0)
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DisplayLastError("WideCharToMultiByte");
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#endif
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*aSrcLength = count;
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*aDestLength = count;
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return NS_OK;
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}
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NS_IMETHODIMP
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WinCEUConvAdapter::Finish(char * aDest, PRInt32 * aDestLength)
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{
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*aDestLength = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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WinCEUConvAdapter::GetMaxLength(const PRUnichar * aSrc,
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PRInt32 aSrcLength,
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PRInt32 * aDestLength)
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{
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if (mCodepage == -1)
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return NS_ERROR_FAILURE;
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int count = WideCharToMultiByte(mCodepage,
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0,
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aSrc,
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aSrcLength,
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NULL,
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NULL,
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NULL,
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NULL);
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#ifdef ALERT_DBG
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if (count == 0)
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DisplayLastError("WideCharToMultiByte (0)");
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#endif
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*aDestLength = count;
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return NS_OK;
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}
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// defined by the Decoder: NS_IMETHOD Reset();
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NS_IMETHODIMP
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WinCEUConvAdapter::SetOutputErrorBehavior(PRInt32 aBehavior,
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nsIUnicharEncoder * aEncoder,
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PRUnichar aChar)
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{
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return NS_OK;
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}
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NS_IMETHODIMP
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WinCEUConvAdapter::FillInfo(PRUint32* aInfo)
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{
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return NS_OK;
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}
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// NativeUConvService
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NS_IMPL_ISUPPORTS1(NativeUConvService,
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nsINativeUConvService);
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NS_IMETHODIMP
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NativeUConvService::GetNativeConverter(const char* from,
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const char* to,
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nsISupports** aResult)
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{
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*aResult = nsnull;
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if (!strcmp(from, "UCS-2") &&
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!strcmp(to, "UTF-8") )
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{
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nsUnicodeToUTF8 * inst = new nsUnicodeToUTF8();
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inst->AddRef();
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*aResult = inst;
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return NS_OK;
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}
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if (!strcmp(from, "UTF-8") &&
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!strcmp(to, "UCS-2") )
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{
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nsUTF8ToUnicode * inst = new nsUTF8ToUnicode();
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inst->AddRef();
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*aResult = (nsIUnicodeDecoder*) inst;
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return NS_OK;
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}
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WinCEUConvAdapter* ucl = new WinCEUConvAdapter();
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if (!ucl)
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return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv = ucl->Init(from, to);
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if (NS_SUCCEEDED(rv)) {
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NS_ADDREF(*aResult = (nsISupports*)(nsIUnicharEncoder*)ucl);
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}
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return rv;
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}
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