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 <tools/debug.hxx>
  28 #include <osl/mutex.hxx>
  29 #include <linguistic/lngprops.hxx>
  30
  31 using namespace utl;
  32 using namespace osl;
  33 using namespace com::sun::star;
  34 using namespace com::sun::star::beans;
  35 using namespace com::sun::star::lang;
  36 using namespace com::sun::star::uno;
  37 using namespace com::sun::star::linguistic2;
  38
  39
  40 namespace linguistic
  41 {
  42
  43
  44 #define NUM_FLUSH_PROPS     6
  45
  46 static const struct
  47 {
  48     const char *pPropName;
  49     sal_Int32       nPropHdl;
  50 } aFlushProperties[ NUM_FLUSH_PROPS ] =
  51 {
  52     { UPN_IS_USE_DICTIONARY_LIST,         UPH_IS_USE_DICTIONARY_LIST },
  53     { UPN_IS_IGNORE_CONTROL_CHARACTERS,   UPH_IS_IGNORE_CONTROL_CHARACTERS },
  54     { UPN_IS_SPELL_UPPER_CASE,            UPH_IS_SPELL_UPPER_CASE },
  55     { UPN_IS_SPELL_WITH_DIGITS,           UPH_IS_SPELL_WITH_DIGITS },
  56     { UPN_IS_SPELL_CAPITALIZATION,        UPH_IS_SPELL_CAPITALIZATION }
  57 };
  58
  59
  60 static void lcl_AddAsPropertyChangeListener(
  61         Reference< XPropertyChangeListener > xListener,
  62         Reference< XLinguProperties > &rPropSet )
  63 {
  64     if (xListener.is() && rPropSet.is())
  65     {
  66         for (int i = 0;  i < NUM_FLUSH_PROPS;  ++i)
  67         {
  68             rPropSet->addPropertyChangeListener(
  69                     OUString::createFromAscii(aFlushProperties[i].pPropName), xListener );
  70         }
  71     }
  72 }
  73
  74
  75 static void lcl_RemoveAsPropertyChangeListener(
  76         Reference< XPropertyChangeListener > xListener,
  77         Reference< XLinguProperties > &rPropSet )
  78 {
  79     if (xListener.is() && rPropSet.is())
  80     {
  81         for (int i = 0;  i < NUM_FLUSH_PROPS;  ++i)
  82         {
  83             rPropSet->removePropertyChangeListener(
  84                     OUString::createFromAscii(aFlushProperties[i].pPropName), xListener );
  85         }
  86     }
  87 }
  88
  89
  90 static bool lcl_IsFlushProperty( sal_Int32 nHandle )
  91 {
  92     int i;
  93     for (i = 0;  i < NUM_FLUSH_PROPS;  ++i)
  94     {
  95         if (nHandle == aFlushProperties[i].nPropHdl)
  96             break;
  97     }
  98     return i < NUM_FLUSH_PROPS;
  99 }
 100
 101
 102 FlushListener::FlushListener( Flushable *pFO )
 103 {
 104     SetFlushObj( pFO );
 105 }
 106
 107
 108 FlushListener::~FlushListener()
 109 {
 110 }
 111
 112
 113 void FlushListener::SetDicList( Reference<XSearchableDictionaryList> &rDL )
 114 {
 115     MutexGuard  aGuard( GetLinguMutex() );
 116
 117     if (xDicList != rDL)
 118     {
 119         if (xDicList.is())
 120             xDicList->removeDictionaryListEventListener( this );
 121
 122         xDicList = rDL;
 123         if (xDicList.is())
 124             xDicList->addDictionaryListEventListener( this, sal_False );
 125     }
 126 }
 127
 128
 129 void FlushListener::SetPropSet( Reference< XLinguProperties > &rPS )
 130 {
 131     MutexGuard  aGuard( GetLinguMutex() );
 132
 133     if (xPropSet != rPS)
 134     {
 135         if (xPropSet.is())
 136             lcl_RemoveAsPropertyChangeListener( this, xPropSet );
 137
 138         xPropSet = rPS;
 139         if (xPropSet.is())
 140             lcl_AddAsPropertyChangeListener( this, xPropSet );
 141     }
 142 }
 143
 144
 145 void SAL_CALL FlushListener::disposing( const EventObject& rSource )
 146         throw(RuntimeException, std::exception)
 147 {
 148     MutexGuard  aGuard( GetLinguMutex() );
 149
 150     if (xDicList.is()  &&  rSource.Source == xDicList)
 151     {
 152         xDicList->removeDictionaryListEventListener( this );
 153         xDicList = NULL;    //! release reference
 154     }
 155     if (xPropSet.is()  &&  rSource.Source == xPropSet)
 156     {
 157         lcl_RemoveAsPropertyChangeListener( this, xPropSet );
 158         xPropSet = NULL;    //! release reference
 159     }
 160 }
 161
 162
 163 void SAL_CALL FlushListener::processDictionaryListEvent(
 164             const DictionaryListEvent& rDicListEvent )
 165         throw(RuntimeException, std::exception)
 166 {
 167     MutexGuard  aGuard( GetLinguMutex() );
 168
 169     if (rDicListEvent.Source == xDicList)
 170     {
 171         sal_Int16 nEvt = rDicListEvent.nCondensedEvent;
 172         sal_Int16 nFlushFlags =
 173                 DictionaryListEventFlags::ADD_NEG_ENTRY     |
 174                 DictionaryListEventFlags::DEL_POS_ENTRY     |
 175                 DictionaryListEventFlags::ACTIVATE_NEG_DIC  |
 176                 DictionaryListEventFlags::DEACTIVATE_POS_DIC;
 177         bool bFlush = 0 != (nEvt & nFlushFlags);
 178
 179         DBG_ASSERT( pFlushObj, "missing object (NULL pointer)" );
 180         if (bFlush && pFlushObj != NULL)
 181             pFlushObj->Flush();
 182     }
 183 }
 184
 185
 186 void SAL_CALL FlushListener::propertyChange(
 187             const PropertyChangeEvent& rEvt )
 188         throw(RuntimeException, std::exception)
 189 {
 190     MutexGuard  aGuard( GetLinguMutex() );
 191
 192     if (rEvt.Source == xPropSet)
 193     {
 194         bool bFlush = lcl_IsFlushProperty( rEvt.PropertyHandle );
 195
 196         DBG_ASSERT( pFlushObj, "missing object (NULL pointer)" );
 197         if (bFlush && pFlushObj != NULL)
 198             pFlushObj->Flush();
 199     }
 200 }
 201
 202
 203
 204 SpellCache::SpellCache()
 205 {
 206     pFlushLstnr = new FlushListener( this );
 207     xFlushLstnr = pFlushLstnr;
 208     Reference<XSearchableDictionaryList> aDictionaryList(GetDictionaryList());
 209     pFlushLstnr->SetDicList( aDictionaryList ); //! after reference is established
 210     Reference<XLinguProperties> aPropertySet(GetLinguProperties());
 211     pFlushLstnr->SetPropSet( aPropertySet );    //! after reference is established
 212 }
 213
 214 SpellCache::~SpellCache()
 215 {
 216     Reference<XSearchableDictionaryList>  aEmptyList;
 217     Reference<XLinguProperties>     aEmptySet;
 218     pFlushLstnr->SetDicList( aEmptyList );
 219     pFlushLstnr->SetPropSet( aEmptySet );
 220 }
 221
 222 void SpellCache::Flush()
 223 {
 224     MutexGuard  aGuard( GetLinguMutex() );
 225     // clear word list
 226     LangWordList_t aEmpty;
 227     aWordLists.swap( aEmpty );
 228 }
 229
 230 bool SpellCache::CheckWord( const OUString& rWord, LanguageType nLang )
 231 {
 232     MutexGuard  aGuard( GetLinguMutex() );
 233     WordList_t &rList = aWordLists[ nLang ];
 234     const WordList_t::const_iterator aIt = rList.find( rWord );
 235     return aIt != rList.end();
 236 }
 237
 238 void SpellCache::AddWord( const OUString& rWord, LanguageType nLang )
 239 {
 240     MutexGuard  aGuard( GetLinguMutex() );
 241     WordList_t & rList = aWordLists[ nLang ];
 242     // occasional clean-up...
 243     if (rList.size() > 500)
 244         rList.clear();
 245     rList.insert( rWord );
 246 }
 247
 248 }   // namespace linguistic
 249
 250 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */