framework/source/fwi/helper/mischelper.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 <com/sun/star/lang/XMultiServiceFactory.hpp>
  21 #include <com/sun/star/document/XDocumentLanguages.hpp>
  22 #include <com/sun/star/linguistic2/LanguageGuessing.hpp>
  23
  24 #include <sal/log.hxx>
  25 #include <vcl/settings.hxx>
  26 #include <vcl/svapp.hxx>
  27 #include <i18nlangtag/languagetag.hxx>
  28 #include <svtools/langtab.hxx>
  29 #include <helper/mischelper.hxx>
  30
  31 using namespace ::com::sun::star;
  32 using namespace ::com::sun::star::uno;
  33 using namespace ::com::sun::star::frame;
  34 using namespace ::com::sun::star::beans;
  35 using namespace ::com::sun::star::container;
  36 using namespace ::com::sun::star::lang;
  37
  38 namespace framework
  39 {
  40
  41 uno::Reference< linguistic2::XLanguageGuessing > const & LanguageGuessingHelper::GetGuesser() const
  42 {
  43     if (!m_xLanguageGuesser.is())
  44     {
  45         try
  46         {
  47             m_xLanguageGuesser = linguistic2::LanguageGuessing::create( m_xContext );
  48         }
  49         catch (const uno::Exception &)
  50         {
  51             SAL_WARN( "fwk", "failed to get language guessing component" );
  52         }
  53     }
  54     return m_xLanguageGuesser;
  55 }
  56
  57 void FillLangItems( std::set< OUString > &rLangItems,
  58         const uno::Reference< frame::XFrame > & rxFrame,
  59         const LanguageGuessingHelper & rLangGuessHelper,
  60         SvtScriptType    nScriptType,
  61         const OUString & rCurLang,
  62         const OUString & rKeyboardLang,
  63         const OUString & rGuessedTextLang )
  64 {
  65     rLangItems.clear();
  66
  67     //1--add current language
  68     if( !rCurLang.isEmpty() &&
  69         LANGUAGE_DONTKNOW != SvtLanguageTable::GetLanguageType( rCurLang ))
  70         rLangItems.insert( rCurLang );
  71
  72     //2--System
  73     const AllSettings& rAllSettings = Application::GetSettings();
  74     LanguageType rSystemLanguage = rAllSettings.GetLanguageTag().getLanguageType();
  75     if( rSystemLanguage != LANGUAGE_DONTKNOW )
  76     {
  77         if ( IsScriptTypeMatchingToLanguage( nScriptType, rSystemLanguage ))
  78             rLangItems.insert( SvtLanguageTable::GetLanguageString( rSystemLanguage ) );
  79     }
  80
  81     //3--UI
  82     LanguageType rUILanguage = rAllSettings.GetUILanguageTag().getLanguageType();
  83     if( rUILanguage != LANGUAGE_DONTKNOW )
  84     {
  85         if ( IsScriptTypeMatchingToLanguage( nScriptType, rUILanguage ))
  86             rLangItems.insert( SvtLanguageTable::GetLanguageString( rUILanguage ) );
  87     }
  88
  89     //4--guessed language
  90     const uno::Reference< linguistic2::XLanguageGuessing >& xLangGuesser( rLangGuessHelper.GetGuesser() );
  91     if ( xLangGuesser.is() && !rGuessedTextLang.isEmpty())
  92     {
  93         css::lang::Locale aLocale(xLangGuesser->guessPrimaryLanguage( rGuessedTextLang, 0, rGuessedTextLang.getLength()) );
  94         LanguageType nLang = LanguageTag( aLocale ).makeFallback().getLanguageType();
  95         if (nLang != LANGUAGE_DONTKNOW && nLang != LANGUAGE_NONE && nLang != LANGUAGE_SYSTEM
  96             && IsScriptTypeMatchingToLanguage( nScriptType, nLang ))
  97             rLangItems.insert( SvtLanguageTable::GetLanguageString( nLang ));
  98     }
  99
 100     //5--keyboard language
 101     if( !rKeyboardLang.isEmpty() )
 102     {
 103         if ( IsScriptTypeMatchingToLanguage( nScriptType, SvtLanguageTable::GetLanguageType( rKeyboardLang )))
 104             rLangItems.insert( rKeyboardLang );
 105     }
 106
 107     //6--all languages used in current document
 108     Reference< css::frame::XModel > xModel;
 109     if ( rxFrame.is() )
 110     {
 111        Reference< css::frame::XController > xController = rxFrame->getController();
 112        if ( xController.is() )
 113            xModel = xController->getModel();
 114     }
 115     Reference< document::XDocumentLanguages > xDocumentLanguages( xModel, UNO_QUERY );
 116     /*the description of nScriptType
 117       LATIN :   0x001
 118       ASIAN :   0x002
 119       COMPLEX:  0x004
 120     */
 121     const sal_Int16 nMaxCount = 7;
 122     if ( !xDocumentLanguages.is() )
 123         return;
 124
 125     const Sequence< Locale > rLocales( xDocumentLanguages->getDocumentLanguages( static_cast<sal_Int16>(nScriptType), nMaxCount ));
 126     for ( const Locale& rLocale : rLocales )
 127     {
 128         if ( rLangItems.size() == static_cast< size_t >(nMaxCount) )
 129             break;
 130         if( IsScriptTypeMatchingToLanguage( nScriptType, SvtLanguageTable::GetLanguageType( rLocale.Language )))
 131             rLangItems.insert( rLocale.Language );
 132     }
 133 }
 134
 135 auto (*g_pGetMultiplexerListener)(
 136     css::uno::Reference<css::uno::XComponentContext> const & xComponentContext,
 137     uno::Reference<uno::XInterface> const&,
 138     std::function<bool (uno::Reference<ui::XContextChangeEventListener> const&)> const&)
 139     -> uno::Reference<ui::XContextChangeEventListener> = nullptr;
 140
 141 uno::Reference<ui::XContextChangeEventListener>
 142 GetFirstListenerWith_Impl(
 143     css::uno::Reference<css::uno::XComponentContext> const & xComponentContext,
 144     uno::Reference<uno::XInterface> const& xEventFocus,
 145     std::function<bool (uno::Reference<ui::XContextChangeEventListener> const&)> const& rPredicate)
 146 {
 147     assert(g_pGetMultiplexerListener != nullptr); // should not be called too early, nor too late
 148     return g_pGetMultiplexerListener(xComponentContext, xEventFocus, rPredicate);
 149 }
 150
 151
 152 } // namespace framework
 153
 154 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */