Files
libreoffice/desktop/source/app/langselect.cxx
Stephan Bergmann 3162d9d430 Remove unused STARTLANG feature
Change-Id: Ib33f2ba2541faad24779cfdfbff7cf7f8a960af2
2013-08-26 08:34:12 +02:00

441 lines
14 KiB
C++

/* -*- 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 "app.hxx"
#include "langselect.hxx"
#include "cmdlineargs.hxx"
#include <stdio.h>
#include <rtl/string.hxx>
#include <i18nlangtag/mslangid.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/configuration/theDefaultProvider.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/beans/NamedValue.hpp>
#include <com/sun/star/util/XChangesBatch.hpp>
#include <com/sun/star/uno/Any.hxx>
#include <com/sun/star/lang/XLocalizable.hpp>
#include <com/sun/star/lang/Locale.hpp>
#include "com/sun/star/util/XFlushable.hpp"
#include <rtl/instance.hxx>
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::container;
using namespace com::sun::star::beans;
using namespace com::sun::star::util;
namespace desktop {
sal_Bool LanguageSelection::bFoundLanguage = sal_False;
OUString LanguageSelection::aFoundLanguage;
LanguageSelection::LanguageSelectionStatus LanguageSelection::m_eStatus = LS_STATUS_OK;
bool LanguageSelection::prepareLanguage()
{
m_eStatus = LS_STATUS_OK;
Reference< XLocalizable > theConfigProvider(
com::sun::star::configuration::theDefaultProvider::get(
comphelper::getProcessComponentContext() ),
UNO_QUERY_THROW );
sal_Bool bSuccess = sal_False;
// #i42730#get the windows 16Bit locale - it should be preferred over the UI language
try
{
Reference< XPropertySet > xProp(getConfigAccess("org.openoffice.System/L10N/", sal_False), UNO_QUERY_THROW);
Any aWin16SysLocale = xProp->getPropertyValue("SystemLocale");
OUString sWin16SysLocale;
aWin16SysLocale >>= sWin16SysLocale;
if( !sWin16SysLocale.isEmpty())
setDefaultLanguage(sWin16SysLocale);
}
catch(const Exception&)
{
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
}
// #i32939# use system locale to set document default locale
try
{
OUString usLocale;
Reference< XPropertySet > xLocaleProp(getConfigAccess(
"org.openoffice.System/L10N", sal_True), UNO_QUERY_THROW);
xLocaleProp->getPropertyValue("Locale") >>= usLocale;
setDefaultLanguage(usLocale);
}
catch (const Exception&)
{
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
}
// get the selected UI language as string
bool bCmdLanguage( false );
OUString aLocaleString = getUserUILanguage();
if ( aLocaleString.isEmpty() )
{
OUString aEmpty;
const CommandLineArgs& rCmdLineArgs = Desktop::GetCommandLineArgs();
aLocaleString = rCmdLineArgs.GetLanguage();
if (isInstalledLanguage(aLocaleString, sal_False))
{
bCmdLanguage = true;
bFoundLanguage = true;
aFoundLanguage = aLocaleString;
}
else
aLocaleString = aEmpty;
}
// user further fallbacks for the UI language
if ( aLocaleString.isEmpty() )
aLocaleString = getLanguageString();
if ( !aLocaleString.isEmpty() )
{
try
{
// prepare default config provider by localizing it to the selected
// locale this will ensure localized configuration settings to be
// selected according to the UI language.
LanguageTag aUILanguageTag(aLocaleString);
theConfigProvider->setLocale(aUILanguageTag.getLocale( false));
Reference< XPropertySet > xProp(getConfigAccess("org.openoffice.Setup/L10N/", sal_True), UNO_QUERY_THROW);
if ( !bCmdLanguage )
{
// Store language only
xProp->setPropertyValue("ooLocale", makeAny(aLocaleString));
Reference< XChangesBatch >(xProp, UNO_QUERY_THROW)->commitChanges();
}
MsLangId::setConfiguredSystemUILanguage( aUILanguageTag.getLanguageType( false) );
OUString sLocale;
xProp->getPropertyValue("ooSetupSystemLocale") >>= sLocale;
if ( !sLocale.isEmpty() )
{
LanguageTag aLocaleLanguageTag(sLocale);
MsLangId::setConfiguredSystemLanguage( aLocaleLanguageTag.getLanguageType( false) );
}
else
MsLangId::setConfiguredSystemLanguage( MsLangId::getSystemLanguage() );
bSuccess = sal_True;
}
catch ( const PropertyVetoException& )
{
// we are not allowed to change this
}
catch (const Exception& e)
{
OString aMsg = OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
OSL_FAIL(aMsg.getStr());
}
}
// #i32939# setting of default document locale
// #i32939# this should not be based on the UI language
setDefaultLanguage(aLocaleString);
return bSuccess;
}
void LanguageSelection::setDefaultLanguage(const OUString& sLocale)
{
// #i32939# setting of default document language
// See #i42730# for rules for determining source of settings
// determine script type of locale
LanguageType nLang = LanguageTag::convertToLanguageType(sLocale);
sal_uInt16 nScriptType = SvtLanguageOptions::GetScriptTypeOfLanguage(nLang);
switch (nScriptType)
{
case SCRIPTTYPE_ASIAN:
MsLangId::setConfiguredAsianFallback( nLang );
break;
case SCRIPTTYPE_COMPLEX:
MsLangId::setConfiguredComplexFallback( nLang );
break;
default:
MsLangId::setConfiguredWesternFallback( nLang );
break;
}
}
OUString LanguageSelection::getUserUILanguage()
{
// check whether the user has selected a specific language
OUString aUserLanguage = getUserLanguage();
if (!aUserLanguage.isEmpty() )
{
if (isInstalledLanguage(aUserLanguage))
{
// all is well
bFoundLanguage = sal_True;
aFoundLanguage = aUserLanguage;
return aFoundLanguage;
}
else
{
// selected language is not/no longer installed
resetUserLanguage();
}
}
return aUserLanguage;
}
OUString LanguageSelection::getLanguageString()
{
// did we already find a language?
if (bFoundLanguage)
return aFoundLanguage;
// check whether the user has selected a specific language
OUString aUserLanguage = getUserUILanguage();
if (!aUserLanguage.isEmpty() )
return aUserLanguage ;
// try to use system default
aUserLanguage = getSystemLanguage();
if (!aUserLanguage.isEmpty() )
{
if (isInstalledLanguage(aUserLanguage, sal_False))
{
// great, system default language is available
bFoundLanguage = sal_True;
aFoundLanguage = aUserLanguage;
return aFoundLanguage;
}
}
// fallback 1: en-US
OUString usFB("en-US");
if (isInstalledLanguage(usFB))
{
bFoundLanguage = sal_True;
aFoundLanguage = "en-US";
return aFoundLanguage;
}
// fallback didn't work use first installed language
aUserLanguage = getFirstInstalledLanguage();
bFoundLanguage = sal_True;
aFoundLanguage = aUserLanguage;
return aFoundLanguage;
}
Reference< XNameAccess > LanguageSelection::getConfigAccess(const sal_Char* pPath, sal_Bool bUpdate)
{
Reference< XNameAccess > xNameAccess;
try{
OUString sAccessSrvc;
if (bUpdate)
sAccessSrvc = "com.sun.star.configuration.ConfigurationUpdateAccess";
else
sAccessSrvc = "com.sun.star.configuration.ConfigurationAccess";
OUString sConfigURL = OUString::createFromAscii(pPath);
Reference< XMultiServiceFactory > theConfigProvider(
com::sun::star::configuration::theDefaultProvider::get(
comphelper::getProcessComponentContext() ) );
// access the provider
Sequence< Any > theArgs(1);
theArgs[ 0 ] <<= sConfigURL;
xNameAccess = Reference< XNameAccess > (
theConfigProvider->createInstanceWithArguments(
sAccessSrvc, theArgs ), UNO_QUERY_THROW );
} catch (const com::sun::star::uno::Exception& e)
{
OString aMsg = OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
OSL_FAIL(aMsg.getStr());
}
return xNameAccess;
}
Sequence< OUString > LanguageSelection::getInstalledLanguages()
{
Sequence< OUString > seqLanguages;
Reference< XNameAccess > xAccess = getConfigAccess("org.openoffice.Setup/Office/InstalledLocales", sal_False);
if (!xAccess.is()) return seqLanguages;
seqLanguages = xAccess->getElementNames();
return seqLanguages;
}
// FIXME
// it's not very clever to handle language fallbacks here, but
// right now, there is no place that handles those fallbacks globally
static Sequence< OUString > _getFallbackLocales(const OUString& aIsoLang)
{
Sequence< OUString > seqFallbacks;
if ( aIsoLang == "zh-HK" ) {
seqFallbacks = Sequence< OUString >(1);
seqFallbacks[0] = "zh-TW";
}
return seqFallbacks;
}
sal_Bool LanguageSelection::isInstalledLanguage(OUString& usLocale, sal_Bool bExact)
{
sal_Bool bInstalled = sal_False;
Sequence< OUString > seqLanguages = getInstalledLanguages();
for (sal_Int32 i=0; i<seqLanguages.getLength(); i++)
{
if (usLocale.equals(seqLanguages[i]))
{
bInstalled = sal_True;
break;
}
}
if (!bInstalled && !bExact)
{
// try fallback locales
Sequence< OUString > seqFallbacks = _getFallbackLocales(usLocale);
for (sal_Int32 j=0; j<seqFallbacks.getLength(); j++)
{
for (sal_Int32 i=0; i<seqLanguages.getLength(); i++)
{
if (seqFallbacks[j].equals(seqLanguages[i]))
{
bInstalled = sal_True;
usLocale = seqFallbacks[j];
break;
}
}
}
}
if (!bInstalled && !bExact)
{
// no exact match was found, well try to find a substitute
for (sal_Int32 i=0; i<seqLanguages.getLength(); i++)
{
if (usLocale.indexOf(seqLanguages[i]) == 0)
{
// requested locale starts with the installed locale
// (i.e. installed locale has index 0 in requested locale)
bInstalled = sal_True;
usLocale = seqLanguages[i];
break;
}
}
}
return bInstalled;
}
OUString LanguageSelection::getFirstInstalledLanguage()
{
OUString aLanguage;
Sequence< OUString > seqLanguages = getInstalledLanguages();
if (seqLanguages.getLength() > 0)
aLanguage = seqLanguages[0];
return aLanguage;
}
OUString LanguageSelection::getUserLanguage()
{
OUString aUserLanguage;
Reference< XNameAccess > xAccess(getConfigAccess("org.openoffice.Office.Linguistic/General", sal_False));
if (xAccess.is())
{
try
{
xAccess->getByName("UILocale") >>= aUserLanguage;
}
catch ( NoSuchElementException const & )
{
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
return OUString();
}
catch ( WrappedTargetException const & )
{
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
return OUString();
}
}
return aUserLanguage;
}
OUString LanguageSelection::getSystemLanguage()
{
OUString aUserLanguage;
Reference< XNameAccess > xAccess(getConfigAccess("org.openoffice.System/L10N", sal_False));
if (xAccess.is())
{
try
{
xAccess->getByName("UILocale") >>= aUserLanguage;
}
catch ( NoSuchElementException const & )
{
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
return OUString();
}
catch ( WrappedTargetException const & )
{
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
return OUString();
}
}
return aUserLanguage;
}
void LanguageSelection::resetUserLanguage()
{
try
{
Reference< XPropertySet > xProp(getConfigAccess("org.openoffice.Office.Linguistic/General", sal_True), UNO_QUERY_THROW);
xProp->setPropertyValue("UILocale", makeAny(OUString()));
Reference< XChangesBatch >(xProp, UNO_QUERY_THROW)->commitChanges();
}
catch ( const PropertyVetoException& )
{
// we are not allowed to change this
}
catch (const Exception& e)
{
OString aMsg = OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
OSL_FAIL(aMsg.getStr());
m_eStatus = LS_STATUS_CONFIGURATIONACCESS_BROKEN;
}
}
LanguageSelection::LanguageSelectionStatus LanguageSelection::getStatus()
{
return m_eStatus;
}
} // namespace desktop
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */