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