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office-gobmx/desktop/source/app/langselect.cxx
Rüdiger Timm b5b8acbe47 INTEGRATION: CWS fwkpp2fix01 (1.11.20); FILE MERGED 
2004/10/27 15:49:21 kso 1.11.20.1: #i34453# - No more crash during startup in case language cannot be determined.
2004-11-09 14:15:15 +00:00

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/*************************************************************************
*
* $RCSfile: langselect.cxx,v $
*
* $Revision: 1.12 $
* last change: $Author: rt $ $Date: 2004-11-09 15:15:15 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#include "app.hxx"
#include "langselect.hxx"
#include <stdio.h>
#ifndef _RTL_STRING_HXX
#include <rtl/string.hxx>
#endif
#ifndef _SVTOOLS_PATHOPTIONS_HXX
#include <svtools/pathoptions.hxx>
#endif
#ifndef _TOOLS_RESID_HXX
#include <tools/resid.hxx>
#endif
#ifndef _TOOLS_ISOLANG_HXX
#include <tools/isolang.hxx>
#endif
#ifndef _COMPHELPER_PROCESSFACTORY_HXX_
#include <comphelper/processfactory.hxx>
#endif
#ifndef _COM_SUN_STAR_CONTAINER_XNAMEACCESS_HPP_
#include <com/sun/star/container/XNameAccess.hpp>
#endif
#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 <rtl/locale.hxx>
#ifndef INCLUDED_RTL_INSTANCE_HXX
#include <rtl/instance.hxx>
#endif
#include <osl/process.h>
using namespace rtl;
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;
const OUString LanguageSelection::usFallbackLanguage = OUString::createFromAscii("en-US");
Locale LanguageSelection::IsoStringToLocale(const OUString& str)
{
Locale l;
sal_Int32 index=0;
l.Language = str.getToken(0, '-', index);
if (index >= 0) l.Country = str.getToken(0, '-', index);
if (index >= 0) l.Variant = str.getToken(0, '-', index);
return l;
}
bool LanguageSelection::prepareLanguage()
{
OUString aLocaleString = getLanguageString();
if ( aLocaleString.getLength() > 0 )
{
OUString sConfigSrvc = OUString::createFromAscii("com.sun.star.configuration.ConfigurationProvider");
Reference< XMultiServiceFactory > theMSF = comphelper::getProcessServiceFactory();
try
{
Reference< XLocalizable > theConfigProvider(
theMSF->createInstance( sConfigSrvc ),UNO_QUERY_THROW );
Locale loc = LanguageSelection::IsoStringToLocale(aLocaleString);
theConfigProvider->setLocale(loc);
Reference< XPropertySet > xProp(getConfigAccess("org.openoffice.Setup/L10N/", sal_True), UNO_QUERY_THROW);
xProp->setPropertyValue(OUString::createFromAscii("ooLocale"), makeAny(aLocaleString));
Reference< XChangesBatch >(xProp, UNO_QUERY_THROW)->commitChanges();
return true;
}
catch (Exception& e)
{
OString aMsg = OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
OSL_ENSURE(sal_False, aMsg.getStr());
}
}
return false;
}
OUString LanguageSelection::getLanguageString()
{
// did we already find a language?
if (bFoundLanguage)
return aFoundLanguage;
// check whether the user has selected a specific language
OUString aUserLanguage = getUserLanguage();
if (aUserLanguage.getLength() > 0 )
{
if (isInstalledLanguage(aUserLanguage))
{
// all is well
bFoundLanguage = sal_True;
aFoundLanguage = aUserLanguage;
return aFoundLanguage;
}
else
{
// selected language is not/no longer installed
resetUserLanguage();
}
}
// try to use system default
aUserLanguage = getSystemLanguage();
if (aUserLanguage.getLength() > 0 )
{
if (isInstalledLanguage(aUserLanguage, sal_False))
{
// great, system default language is available
bFoundLanguage = sal_True;
aFoundLanguage = aUserLanguage;
return aFoundLanguage;
}
}
// fallback 1: en-US
OUString usFB = usFallbackLanguage;
if (isInstalledLanguage(usFB))
{
bFoundLanguage = sal_True;
aFoundLanguage = usFallbackLanguage;
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 sConfigSrvc = OUString::createFromAscii("com.sun.star.configuration.ConfigurationProvider");
OUString sAccessSrvc;
if (bUpdate)
sAccessSrvc = OUString::createFromAscii("com.sun.star.configuration.ConfigurationUpdateAccess");
else
sAccessSrvc = OUString::createFromAscii("com.sun.star.configuration.ConfigurationAccess");
OUString sConfigURL = OUString::createFromAscii(pPath);
// get configuration provider
Reference< XMultiServiceFactory > theMSF = comphelper::getProcessServiceFactory();
Reference< XMultiServiceFactory > theConfigProvider = Reference< XMultiServiceFactory > (
theMSF->createInstance( sConfigSrvc ),UNO_QUERY_THROW );
// access the provider
Sequence< Any > theArgs(1);
theArgs[ 0 ] <<= sConfigURL;
xNameAccess = Reference< XNameAccess > (
theConfigProvider->createInstanceWithArguments(
sAccessSrvc, theArgs ), UNO_QUERY_THROW );
} catch (com::sun::star::uno::Exception& e)
{
OString aMsg = OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
OSL_ENSURE(sal_False, 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;
}
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)
{
// no exact match was found, well try to find a substitute
Locale aLocale = IsoStringToLocale(usLocale);
Locale aInstalledLocale;
for (sal_Int32 i=0; i<seqLanguages.getLength(); i++)
{
aInstalledLocale = IsoStringToLocale(seqLanguages[i]);
if (aLocale.Language.equals(aInstalledLocale.Language))
{
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(OUString::createFromAscii("UILocale")) >>= aUserLanguage;
}
catch ( NoSuchElementException const & )
{
return OUString();
}
catch ( WrappedTargetException const & )
{
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(OUString::createFromAscii("UILocale")) >>= aUserLanguage;
}
catch ( NoSuchElementException const & )
{
return OUString();
}
catch ( WrappedTargetException const & )
{
return OUString();
}
}
return aUserLanguage;
}
void LanguageSelection::resetUserLanguage()
{
try
{
Reference< XPropertySet > xProp(getConfigAccess("org.openoffice.Office.Linguistic/General", sal_True), UNO_QUERY_THROW);
xProp->setPropertyValue(OUString::createFromAscii("UILocale"), makeAny(OUString::createFromAscii("")));
Reference< XChangesBatch >(xProp, UNO_QUERY_THROW)->commitChanges();
}
catch ( Exception& e)
{
OString aMsg = OUStringToOString(e.Message, RTL_TEXTENCODING_ASCII_US);
OSL_ENSURE(sal_False, aMsg.getStr());
}
}
} // namespace desktop
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