Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <stdlib.h>
      21             : #include <stdio.h>
      22             : 
      23             : #ifdef MACOSX
      24             : #include <osl/process.h>
      25             : #include <rtl/locale.h>
      26             : #include <rtl/ustring.hxx>
      27             : 
      28             : #else   // MACOSX
      29             : #include <rtl/string.hxx>
      30             : #endif  // MACOSX
      31             : 
      32             : #include <osl/mutex.hxx>
      33             : #include <rtl/instance.hxx>
      34             : #include "i18nlangtag/languagetag.hxx"
      35             : #include "i18nlangtag/mslangid.hxx"
      36             : 
      37             : 
      38             : 
      39             : static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
      40             : static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
      41             : 
      42             : 
      43             : 
      44             : // Get locale of category LC_CTYPE of environment variables
      45         139 : static const sal_Char* getLangFromEnvironment()
      46             : {
      47             :     static const sal_Char* pFallback = "C";
      48         139 :     const sal_Char *pLang = NULL;
      49             : 
      50         139 :     pLang = getenv ( "LC_ALL" );
      51         139 :     if (! pLang || pLang[0] == 0)
      52           0 :         pLang = getenv ( "LC_CTYPE" );
      53         139 :     if (! pLang || pLang[0] == 0)
      54           0 :         pLang = getenv( "LANG" );
      55         139 :     if (! pLang || pLang[0] == 0)
      56           0 :         pLang = pFallback;
      57             : 
      58         139 :     return pLang;
      59             : }
      60             : 
      61             : 
      62             : 
      63             : // Get locale of category LC_MESSAGES of environment variables
      64         245 : static const sal_Char* getUILangFromEnvironment()
      65             : {
      66             :     static const sal_Char* pFallback = "C";
      67         245 :     const sal_Char *pLang = NULL;
      68             : 
      69         245 :     pLang = getenv ( "LANGUAGE" );      // respect the GNU extension
      70         245 :     if (! pLang || pLang[0] == 0)
      71         245 :         pLang = getenv ( "LC_ALL" );
      72         245 :     if (! pLang || pLang[0] == 0)
      73           0 :         pLang = getenv ( "LC_MESSAGES" );
      74         245 :     if (! pLang || pLang[0] == 0)
      75           0 :         pLang = getenv( "LANG" );
      76         245 :     if (! pLang || pLang[0] == 0)
      77           0 :         pLang = pFallback;
      78             : 
      79         245 :     return pLang;
      80             : }
      81             : 
      82             : 
      83             : 
      84             : typedef const sal_Char * (*getLangFromEnv)();
      85             : 
      86         684 : static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
      87             :         getLangFromEnv pGetLangFromEnv )
      88             : {
      89             :     /* get the language from the user environment */
      90         684 :     LanguageType nLang = rSystemLanguage;
      91         684 :     if ( nLang == LANGUAGE_DONTKNOW )
      92             :     {
      93         384 :         ::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
      94         384 :         nLang = rSystemLanguage;
      95         384 :         if ( nLang == LANGUAGE_DONTKNOW )
      96             :         {
      97             : #ifdef MACOSX
      98             :             rtl_Locale    *procLocale;
      99             :             (void) pGetLangFromEnv; /* unused */
     100             : 
     101             :             if ( osl_getProcessLocale(&procLocale) == osl_Process_E_None )
     102             :             {
     103             :                 nLang = LanguageTag( *procLocale ).makeFallback().getLanguageType();
     104             :                 OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
     105             :                 rSystemLanguage = nLang;
     106             : #ifdef DEBUG
     107             :                 if ( rSystemLanguage == LANGUAGE_DONTKNOW )
     108             :                     fprintf( stderr, "intnunx.cxx:  failed to convert osl_getProcessLocale() language to system language.\n" );
     109             : #endif
     110             :             }
     111             : #else   /* MACOSX */
     112         384 :             OString aUnxLang( (pGetLangFromEnv)() );
     113         384 :             nLang = MsLangId::convertUnxByteStringToLanguage( aUnxLang );
     114             :             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
     115         384 :             rSystemLanguage = nLang;
     116             : #endif  /* MACOSX */
     117             :         }
     118             :         else {
     119             :             OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
     120         384 :         }
     121             :     }
     122         684 : }
     123             : 
     124             : 
     125             : 
     126         425 : LanguageType MsLangId::getPlatformSystemLanguage()
     127             : {
     128         425 :     getPlatformSystemLanguageImpl( nImplSystemLanguage, &getLangFromEnvironment);
     129         425 :     return nImplSystemLanguage;
     130             : }
     131             : 
     132             : 
     133             : 
     134         259 : LanguageType MsLangId::getPlatformSystemUILanguage()
     135             : {
     136         259 :     getPlatformSystemLanguageImpl( nImplSystemUILanguage, &getUILangFromEnvironment);
     137         259 :     return nImplSystemUILanguage;
     138             : }
     139             : 
     140             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */