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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <sal/log.hxx>
#include <unotools/localedatawrapper.hxx>
#include <unotools/charclass.hxx>
#include <unotools/syslocale.hxx>
#include <unotools/syslocaleoptions.hxx>
#include <comphelper/lok.hxx>
#include <rtl/tencinfo.h>
#include <rtl/locale.h>
#include <osl/thread.h>
#include <osl/nlsupport.h>
#include <memory>
#include <mutex>
#include <optional>
#include <vector>
using namespace osl;
using namespace com::sun::star;
namespace {
std::weak_ptr<SvtSysLocale_Impl> g_pSysLocale;
// static
std::mutex& GetMutex()
{
// #i77768# Due to a static reference in the toolkit lib
// we need a mutex that lives longer than the svl library.
// Otherwise the dtor would use a destructed mutex!!
static std::mutex* persistentMutex(new std::mutex);
return *persistentMutex;
}
}
class SvtSysLocale_Impl : public utl::ConfigurationListener
{
public:
SvtSysLocaleOptions aSysLocaleOptions;
std::optional<LocaleDataWrapper> moLocaleData;
std::optional<CharClass> moCharClass;
SvtSysLocale_Impl();
virtual ~SvtSysLocale_Impl() override;
CharClass& GetCharClass();
virtual void ConfigurationChanged( utl::ConfigurationBroadcaster*, ConfigurationHints ) override;
private:
std::vector<OUString> getDateAcceptancePatternsConfig() const;
};
SvtSysLocale_Impl::SvtSysLocale_Impl()
{
moLocaleData.emplace(
aSysLocaleOptions.GetRealLanguageTag(),
getDateAcceptancePatternsConfig() );
// listen for further changes
aSysLocaleOptions.AddListener( this );
}
SvtSysLocale_Impl::~SvtSysLocale_Impl()
{
aSysLocaleOptions.RemoveListener( this );
}
CharClass& SvtSysLocale_Impl::GetCharClass()
{
if ( !moCharClass )
moCharClass.emplace( aSysLocaleOptions.GetRealLanguageTag() );
return *moCharClass;
}
void SvtSysLocale_Impl::ConfigurationChanged( utl::ConfigurationBroadcaster*, ConfigurationHints nHint )
{
if ( !(nHint & ConfigurationHints::Locale) &&
!(nHint & ConfigurationHints::DatePatterns) )
return;
std::unique_lock aGuard( GetMutex() );
const LanguageTag& rLanguageTag = aSysLocaleOptions.GetRealLanguageTag();
if ( nHint & ConfigurationHints::Locale )
{
moCharClass.emplace( rLanguageTag );
}
moLocaleData.emplace(rLanguageTag, getDateAcceptancePatternsConfig());
}
std::vector<OUString> SvtSysLocale_Impl::getDateAcceptancePatternsConfig() const
{
OUString aStr( aSysLocaleOptions.GetDatePatternsConfigString());
if (aStr.isEmpty())
return {}; // reset
::std::vector< OUString > aVec;
for (sal_Int32 nIndex = 0; nIndex >= 0; /*nop*/)
{
OUString aTok( aStr.getToken( 0, ';', nIndex));
if (!aTok.isEmpty())
aVec.push_back( aTok);
}
return aVec;
}
SvtSysLocale::SvtSysLocale()
{
std::unique_lock aGuard( GetMutex() );
pImpl = g_pSysLocale.lock();
if ( !pImpl )
{
pImpl = std::make_shared<SvtSysLocale_Impl>();
g_pSysLocale = pImpl;
}
}
SvtSysLocale::~SvtSysLocale()
{
std::unique_lock aGuard( GetMutex() );
pImpl.reset();
}
const LocaleDataWrapper& SvtSysLocale::GetLocaleData() const
{
return *(pImpl->moLocaleData);
}
const CharClass& SvtSysLocale::GetCharClass() const
{
return pImpl->GetCharClass();
}
SvtSysLocaleOptions& SvtSysLocale::GetOptions() const
{
return pImpl->aSysLocaleOptions;
}
const LanguageTag& SvtSysLocale::GetLanguageTag() const
{
if (comphelper::LibreOfficeKit::isActive())
return comphelper::LibreOfficeKit::getLocale();
return pImpl->aSysLocaleOptions.GetRealLanguageTag();
}
const LanguageTag& SvtSysLocale::GetUILanguageTag() const
{
if (comphelper::LibreOfficeKit::isActive())
return comphelper::LibreOfficeKit::getLanguageTag();
return pImpl->aSysLocaleOptions.GetRealUILanguageTag();
}
// static
rtl_TextEncoding SvtSysLocale::GetBestMimeEncoding()
{
const char* pCharSet = rtl_getBestMimeCharsetFromTextEncoding(
osl_getThreadTextEncoding() );
if ( !pCharSet )
{
// If the system locale is unknown to us, e.g. LC_ALL=xx, match the UI
// language if possible.
SvtSysLocale aSysLocale;
const LanguageTag& rLanguageTag = aSysLocale.GetUILanguageTag();
// Converting blindly to Locale and then to rtl_Locale may feed the
// 'qlt' to rtl_locale_register() and the underlying system locale
// stuff, which doesn't know about it nor about BCP47 in the Variant
// field. So use the real language and for non-pure ISO cases hope for
// the best... the fallback to UTF-8 should solve these cases nowadays.
/* FIXME-BCP47: the script needs to go in here as well, so actually
* we'd need some variant fiddling or glibc locale string and tweak
* rtl_locale_register() to know about it! But then again the Windows
* implementation still wouldn't know anything about it ... */
SAL_WARN_IF( !rLanguageTag.isIsoLocale(), "unotools.i18n",
"SvtSysLocale::GetBestMimeEncoding - non-ISO UI locale");
rtl_Locale * pLocale = rtl_locale_register( rLanguageTag.getLanguage().getStr(),
rLanguageTag.getCountry().getStr(), OUString().getStr() );
rtl_TextEncoding nEnc = osl_getTextEncodingFromLocale( pLocale );
pCharSet = rtl_getBestMimeCharsetFromTextEncoding( nEnc );
}
rtl_TextEncoding nRet;
if ( pCharSet )
nRet = rtl_getTextEncodingFromMimeCharset( pCharSet );
else
nRet = RTL_TEXTENCODING_UTF8;
return nRet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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