linguistic/source/iprcache.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
  21 #include <string.h>
  22
  23 #include <iprcache.hxx>
  24 #include <linguistic/misc.hxx>
  25
  26 #include <com/sun/star/linguistic2/DictionaryListEventFlags.hpp>
  27 #include <osl/mutex.hxx>
  28 #include <linguistic/lngprops.hxx>
  29
  30 using namespace utl;
  31 using namespace osl;
  32 using namespace com::sun::star;
  33 using namespace com::sun::star::beans;
  34 using namespace com::sun::star::lang;
  35 using namespace com::sun::star::uno;
  36 using namespace com::sun::star::linguistic2;
  37
  38
  39 namespace linguistic
  40 {
  41
  42
  43 #define NUM_FLUSH_PROPS     6
  44
  45 static const struct
  46 {
  47     const char *pPropName;
  48     sal_Int32       nPropHdl;
  49 } aFlushProperties[ NUM_FLUSH_PROPS ] =
  50 {
  51     { UPN_IS_USE_DICTIONARY_LIST,         UPH_IS_USE_DICTIONARY_LIST },
  52     { UPN_IS_IGNORE_CONTROL_CHARACTERS,   UPH_IS_IGNORE_CONTROL_CHARACTERS },
  53     { UPN_IS_SPELL_UPPER_CASE,            UPH_IS_SPELL_UPPER_CASE },
  54     { UPN_IS_SPELL_WITH_DIGITS,           UPH_IS_SPELL_WITH_DIGITS },
  55     { UPN_IS_SPELL_CAPITALIZATION,        UPH_IS_SPELL_CAPITALIZATION }
  56 };
  57
  58
  59 static void lcl_AddAsPropertyChangeListener(
  60         const Reference< XPropertyChangeListener >& xListener,
  61         Reference< XLinguProperties > const &rPropSet )
  62 {
  63     if (xListener.is() && rPropSet.is())
  64     {
  65         for (auto& aFlushPropertie : aFlushProperties)
  66         {
  67             rPropSet->addPropertyChangeListener(
  68                     OUString::createFromAscii(aFlushPropertie.pPropName), xListener );
  69         }
  70     }
  71 }
  72
  73
  74 static void lcl_RemoveAsPropertyChangeListener(
  75         const Reference< XPropertyChangeListener >& xListener,
  76         Reference< XLinguProperties > const &rPropSet )
  77 {
  78     if (xListener.is() && rPropSet.is())
  79     {
  80         for (auto& aFlushPropertie : aFlushProperties)
  81         {
  82             rPropSet->removePropertyChangeListener(
  83                     OUString::createFromAscii(aFlushPropertie.pPropName), xListener );
  84         }
  85     }
  86 }
  87
  88
  89 static bool lcl_IsFlushProperty( sal_Int32 nHandle )
  90 {
  91     int i;
  92     for (i = 0;  i < NUM_FLUSH_PROPS;  ++i)
  93     {
  94         if (nHandle == aFlushProperties[i].nPropHdl)
  95             break;
  96     }
  97     return i < NUM_FLUSH_PROPS;
  98 }
  99
 100
 101 void FlushListener::SetDicList( Reference<XSearchableDictionaryList> const &rDL )
 102 {
 103     MutexGuard  aGuard( GetLinguMutex() );
 104
 105     if (xDicList != rDL)
 106     {
 107         if (xDicList.is())
 108             xDicList->removeDictionaryListEventListener( this );
 109
 110         xDicList = rDL;
 111         if (xDicList.is())
 112             xDicList->addDictionaryListEventListener( this, false );
 113     }
 114 }
 115
 116
 117 void FlushListener::SetPropSet( Reference< XLinguProperties > const &rPS )
 118 {
 119     MutexGuard  aGuard( GetLinguMutex() );
 120
 121     if (xPropSet != rPS)
 122     {
 123         if (xPropSet.is())
 124             lcl_RemoveAsPropertyChangeListener( this, xPropSet );
 125
 126         xPropSet = rPS;
 127         if (xPropSet.is())
 128             lcl_AddAsPropertyChangeListener( this, xPropSet );
 129     }
 130 }
 131
 132
 133 void SAL_CALL FlushListener::disposing( const EventObject& rSource )
 134 {
 135     MutexGuard  aGuard( GetLinguMutex() );
 136
 137     if (xDicList.is()  &&  rSource.Source == xDicList)
 138     {
 139         xDicList->removeDictionaryListEventListener( this );
 140         xDicList = nullptr;    //! release reference
 141     }
 142     if (xPropSet.is()  &&  rSource.Source == xPropSet)
 143     {
 144         lcl_RemoveAsPropertyChangeListener( this, xPropSet );
 145         xPropSet = nullptr;    //! release reference
 146     }
 147 }
 148
 149
 150 void SAL_CALL FlushListener::processDictionaryListEvent(
 151             const DictionaryListEvent& rDicListEvent )
 152 {
 153     MutexGuard  aGuard( GetLinguMutex() );
 154
 155     if (rDicListEvent.Source == xDicList)
 156     {
 157         sal_Int16 nEvt = rDicListEvent.nCondensedEvent;
 158         sal_Int16 const nFlushFlags =
 159                 DictionaryListEventFlags::ADD_NEG_ENTRY     |
 160                 DictionaryListEventFlags::DEL_POS_ENTRY     |
 161                 DictionaryListEventFlags::ACTIVATE_NEG_DIC  |
 162                 DictionaryListEventFlags::DEACTIVATE_POS_DIC;
 163         bool bFlush = 0 != (nEvt & nFlushFlags);
 164
 165         if (bFlush)
 166             mrSpellCache.Flush();
 167     }
 168 }
 169
 170
 171 void SAL_CALL FlushListener::propertyChange(
 172             const PropertyChangeEvent& rEvt )
 173 {
 174     MutexGuard  aGuard( GetLinguMutex() );
 175
 176     if (rEvt.Source == xPropSet)
 177     {
 178         bool bFlush = lcl_IsFlushProperty( rEvt.PropertyHandle );
 179
 180         if (bFlush)
 181             mrSpellCache.Flush();
 182     }
 183 }
 184
 185
 186 SpellCache::SpellCache()
 187 {
 188     mxFlushLstnr = new FlushListener( *this );
 189     Reference<XSearchableDictionaryList> aDictionaryList(GetDictionaryList());
 190     mxFlushLstnr->SetDicList( aDictionaryList ); //! after reference is established
 191     Reference<XLinguProperties> aPropertySet(GetLinguProperties());
 192     mxFlushLstnr->SetPropSet( aPropertySet );    //! after reference is established
 193 }
 194
 195 SpellCache::~SpellCache()
 196 {
 197     Reference<XSearchableDictionaryList>  aEmptyList;
 198     Reference<XLinguProperties>     aEmptySet;
 199     mxFlushLstnr->SetDicList( aEmptyList );
 200     mxFlushLstnr->SetPropSet( aEmptySet );
 201 }
 202
 203 void SpellCache::Flush()
 204 {
 205     MutexGuard  aGuard( GetLinguMutex() );
 206     // clear word list
 207     LangWordList_t aEmpty;
 208     aWordLists.swap( aEmpty );
 209 }
 210
 211 bool SpellCache::CheckWord( const OUString& rWord, LanguageType nLang )
 212 {
 213     MutexGuard  aGuard( GetLinguMutex() );
 214     WordList_t &rList = aWordLists[ nLang ];
 215     const WordList_t::const_iterator aIt = rList.find( rWord );
 216     return aIt != rList.end();
 217 }
 218
 219 void SpellCache::AddWord( const OUString& rWord, LanguageType nLang )
 220 {
 221     MutexGuard  aGuard( GetLinguMutex() );
 222     WordList_t & rList = aWordLists[ nLang ];
 223     // occasional clean-up...
 224     if (rList.size() > 500)
 225         rList.clear();
 226     rList.insert( rWord );
 227 }
 228
 229 }   // namespace linguistic
 230
 231 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */