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