unotools/source/misc/syslocale.cxx

   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 <sal/config.h>
  21
  22 #include <sal/log.hxx>
  23 #include <unotools/localedatawrapper.hxx>
  24 #include <unotools/charclass.hxx>
  25 #include <unotools/syslocale.hxx>
  26 #include <unotools/syslocaleoptions.hxx>
  27 #include <comphelper/lok.hxx>
  28 #include <rtl/tencinfo.h>
  29 #include <rtl/locale.h>
  30 #include <osl/thread.h>
  31 #include <osl/nlsupport.h>
  32
  33 #include <memory>
  34 #include <mutex>
  35 #include <optional>
  36 #include <vector>
  37
  38 using namespace com::sun::star;
  39
  40 namespace {
  41
  42 std::weak_ptr<SvtSysLocale_Impl> g_pSysLocale;
  43
  44 // static
  45 std::mutex& GetMutex()
  46 {
  47     // #i77768# Due to a static reference in the toolkit lib
  48     // we need a mutex that lives longer than the svl library.
  49     // Otherwise the dtor would use a destructed mutex!!
  50     static std::mutex* persistentMutex(new std::mutex);
  51
  52     return *persistentMutex;
  53 }
  54
  55
  56 }
  57
  58 class SvtSysLocale_Impl : public utl::ConfigurationListener
  59 {
  60 public:
  61         SvtSysLocaleOptions                    aSysLocaleOptions;
  62         std::optional<LocaleDataWrapper>       moLocaleData;
  63         std::optional<CharClass>               moCharClass;
  64
  65                                 SvtSysLocale_Impl();
  66     virtual                     ~SvtSysLocale_Impl() override;
  67
  68     CharClass&                  GetCharClass();
  69     virtual void                ConfigurationChanged( utl::ConfigurationBroadcaster*, ConfigurationHints ) override;
  70
  71 private:
  72     std::vector<OUString>       getDateAcceptancePatternsConfig() const;
  73 };
  74
  75 SvtSysLocale_Impl::SvtSysLocale_Impl()
  76 {
  77     moLocaleData.emplace(
  78         aSysLocaleOptions.GetRealLanguageTag(),
  79         getDateAcceptancePatternsConfig() );
  80
  81     // listen for further changes
  82     aSysLocaleOptions.AddListener( this );
  83 }
  84
  85 SvtSysLocale_Impl::~SvtSysLocale_Impl()
  86 {
  87     aSysLocaleOptions.RemoveListener( this );
  88 }
  89
  90 CharClass& SvtSysLocale_Impl::GetCharClass()
  91 {
  92     if ( !moCharClass )
  93         moCharClass.emplace( aSysLocaleOptions.GetRealLanguageTag() );
  94     return *moCharClass;
  95 }
  96
  97 void SvtSysLocale_Impl::ConfigurationChanged( utl::ConfigurationBroadcaster*, ConfigurationHints nHint )
  98 {
  99     if ( !(nHint & ConfigurationHints::Locale) &&
 100          !(nHint & ConfigurationHints::DatePatterns) )
 101         return;
 102
 103     std::unique_lock aGuard( GetMutex() );
 104
 105     const LanguageTag& rLanguageTag = aSysLocaleOptions.GetRealLanguageTag();
 106     if ( nHint & ConfigurationHints::Locale )
 107     {
 108         moCharClass.emplace( rLanguageTag );
 109     }
 110     moLocaleData.emplace(rLanguageTag, getDateAcceptancePatternsConfig());
 111 }
 112
 113 std::vector<OUString> SvtSysLocale_Impl::getDateAcceptancePatternsConfig() const
 114 {
 115     OUString aStr( aSysLocaleOptions.GetDatePatternsConfigString());
 116     if (aStr.isEmpty())
 117         return {};  // reset
 118     ::std::vector< OUString > aVec;
 119     for (sal_Int32 nIndex = 0; nIndex >= 0; /*nop*/)
 120     {
 121         OUString aTok( aStr.getToken( 0, ';', nIndex));
 122         if (!aTok.isEmpty())
 123             aVec.push_back( aTok);
 124     }
 125     return aVec;
 126 }
 127
 128 SvtSysLocale::SvtSysLocale()
 129 {
 130     std::unique_lock aGuard( GetMutex() );
 131     pImpl = g_pSysLocale.lock();
 132     if ( !pImpl )
 133     {
 134         pImpl = std::make_shared<SvtSysLocale_Impl>();
 135         g_pSysLocale = pImpl;
 136     }
 137 }
 138
 139 SvtSysLocale::~SvtSysLocale()
 140 {
 141     std::unique_lock aGuard( GetMutex() );
 142     pImpl.reset();
 143 }
 144
 145 const LocaleDataWrapper& SvtSysLocale::GetLocaleData() const
 146 {
 147     return *(pImpl->moLocaleData);
 148 }
 149
 150 const CharClass& SvtSysLocale::GetCharClass() const
 151 {
 152     return pImpl->GetCharClass();
 153 }
 154
 155 SvtSysLocaleOptions& SvtSysLocale::GetOptions() const
 156 {
 157     return pImpl->aSysLocaleOptions;
 158 }
 159
 160 const LanguageTag& SvtSysLocale::GetLanguageTag() const
 161 {
 162     if (comphelper::LibreOfficeKit::isActive())
 163         return comphelper::LibreOfficeKit::getLocale();
 164
 165     return pImpl->aSysLocaleOptions.GetRealLanguageTag();
 166 }
 167
 168 const LanguageTag& SvtSysLocale::GetUILanguageTag() const
 169 {
 170     if (comphelper::LibreOfficeKit::isActive())
 171         return comphelper::LibreOfficeKit::getLanguageTag();
 172
 173     return pImpl->aSysLocaleOptions.GetRealUILanguageTag();
 174 }
 175
 176 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */