desktop/source/app/langselect.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 <com/sun/star/configuration/theDefaultProvider.hpp>
  23 #include <com/sun/star/container/XNameAccess.hpp>
  24 #include <com/sun/star/lang/XLocalizable.hpp>
  25 #include <com/sun/star/uno/Exception.hpp>
  26 #include <com/sun/star/uno/Reference.hxx>
  27 #include <com/sun/star/uno/Sequence.hxx>
  28 #include <comphelper/configuration.hxx>
  29 #include <comphelper/processfactory.hxx>
  30 #include <i18nlangtag/lang.h>
  31 #include <i18nlangtag/languagetag.hxx>
  32 #include <i18nlangtag/mslangid.hxx>
  33 #include <officecfg/Office/Linguistic.hxx>
  34 #include <officecfg/Setup.hxx>
  35 #include <officecfg/System.hxx>
  36 #include <rtl/ustring.hxx>
  37 #include <svl/languageoptions.hxx>
  38 #include <svtools/langhelp.hxx>
  39 #include <comphelper/diagnose_ex.hxx>
  40
  41 #include <app.hxx>
  42
  43 #include "cmdlineargs.hxx"
  44 #include "langselect.hxx"
  45
  46 namespace desktop::langselect {
  47
  48 namespace {
  49
  50 void setMsLangIdFallback(OUString const & locale) {
  51     // #i32939# setting of default document language
  52     // See #i42730# for rules for determining source of settings
  53     if (locale.isEmpty())
  54         return;
  55
  56     LanguageType type = LanguageTag::convertToLanguageTypeWithFallback(locale);
  57     switch (SvtLanguageOptions::GetScriptTypeOfLanguage(type)) {
  58     case SvtScriptType::ASIAN:
  59         MsLangId::setConfiguredAsianFallback(type);
  60         break;
  61     case SvtScriptType::COMPLEX:
  62         MsLangId::setConfiguredComplexFallback(type);
  63         break;
  64     default:
  65         MsLangId::setConfiguredWesternFallback(type);
  66         break;
  67     }
  68 }
  69
  70 }
  71
  72 bool prepareLocale() {
  73     // #i42730# Get the windows 16Bit locale, it should be preferred over the UI
  74     // locale:
  75     setMsLangIdFallback(officecfg::System::L10N::SystemLocale::get());
  76     // #i32939# Use system locale to set document default locale:
  77     setMsLangIdFallback(officecfg::System::L10N::Locale::get());
  78     css::uno::Sequence<OUString> inst(
  79         officecfg::Setup::Office::InstalledLocales::get()->getElementNames());
  80     OUString locale(officecfg::Office::Linguistic::General::UILocale::get());
  81     if (!locale.isEmpty()) {
  82         locale = getInstalledLocaleForLanguage(inst, locale);
  83         if (locale.isEmpty()) {
  84             // Selected language is not/no longer installed:
  85             try {
  86                 std::shared_ptr<comphelper::ConfigurationChanges> batch(
  87                     comphelper::ConfigurationChanges::create());
  88                 officecfg::Office::Linguistic::General::UILocale::set(
  89                     "", batch);
  90                 batch->commit();
  91             } catch (const css::uno::Exception &) {
  92                 TOOLS_WARN_EXCEPTION("desktop.app", "ignoring");
  93             }
  94         }
  95     }
  96     if (locale.isEmpty()) {
  97         locale = getInstalledLocaleForLanguage(
  98             inst, Desktop::GetCommandLineArgs().GetLanguage());
  99     }
 100     if (locale.isEmpty()) {
 101         locale = getInstalledLocaleForSystemUILanguage(inst, true);
 102     }
 103     if (locale.isEmpty()) {
 104         return false;
 105     }
 106     LanguageTag tag(locale);
 107     // Prepare default config provider by localizing it to the selected
 108     // locale this will ensure localized configuration settings to be
 109     // selected according to the UI language:
 110     css::uno::Reference<css::lang::XLocalizable>(
 111         css::configuration::theDefaultProvider::get(
 112             comphelper::getProcessComponentContext()),
 113         css::uno::UNO_QUERY_THROW)->setLocale(tag.getLocale(false));
 114     try {
 115         std::shared_ptr<comphelper::ConfigurationChanges> batch(
 116             comphelper::ConfigurationChanges::create());
 117         officecfg::Setup::L10N::ooLocale::set(locale, batch);
 118         batch->commit();
 119     } catch (const css::uno::Exception &) {
 120         TOOLS_WARN_EXCEPTION("desktop.app", "ignoring");
 121     }
 122     MsLangId::setConfiguredSystemUILanguage(tag.getLanguageType(false));
 123
 124     // Note the system language/locale here may or may not be correct before we
 125     // actually set it below. It is what could be figured from the system
 126     // setting and may only partially match, like "en" for an unsupported
 127     // English locale.
 128     LanguageTag aSysLocTag( MsLangId::getSystemLanguage());
 129     OUString setupSysLoc(officecfg::Setup::L10N::ooSetupSystemLocale::get());
 130     if (!setupSysLoc.isEmpty())
 131         aSysLocTag.reset( setupSysLoc);
 132     // Ensure the system locale is set to a known supported locale.
 133     aSysLocTag.makeFallback();
 134     LanguageTag::setConfiguredSystemLanguage( aSysLocTag.getLanguageType(false));
 135
 136     // #i32939# setting of default document locale
 137     // #i32939# this should not be based on the UI language
 138     // So obtain the system locale now configured just above and pass it on,
 139     // resolved of course.
 140     LanguageTag docTag(LANGUAGE_SYSTEM);
 141     setMsLangIdFallback(docTag.getBcp47());
 142
 143     return true;
 144 }
 145
 146 }
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */