Line data    Source code

       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 <comphelper/propmultiplex.hxx>
      21             : #include <osl/diagnose.h>
      22             : 
      23             : 
      24             : namespace comphelper
      25             : {
      26             : 
      27             : 
      28             : using namespace ::com::sun::star::uno;
      29             : using namespace ::com::sun::star::lang;
      30             : using namespace ::com::sun::star::beans;
      31             : 
      32         626 : OPropertyChangeListener::~OPropertyChangeListener()
      33             : {
      34         626 :     if (m_pAdapter)
      35          21 :         m_pAdapter->dispose();
      36         626 : }
      37             : 
      38             : 
      39         383 : void OPropertyChangeListener::_disposing(const EventObject&)
      40             :     throw (RuntimeException, std::exception)
      41             : {
      42             :     // nothing to do here
      43         383 : }
      44             : 
      45             : 
      46           1 : void OPropertyChangeListener::disposeAdapter()
      47             : {
      48           1 :     if ( m_pAdapter )
      49           0 :         m_pAdapter->dispose();
      50             : 
      51             :     // will automatically set a new adapter
      52             :     OSL_ENSURE( !m_pAdapter, "OPropertyChangeListener::disposeAdapter: what did dispose do?" );
      53           1 : }
      54             : 
      55             : 
      56        1302 : void OPropertyChangeListener::setAdapter(OPropertyChangeMultiplexer* pAdapter)
      57             : {
      58        1302 :     if (m_pAdapter)
      59             :     {
      60         629 :         ::osl::MutexGuard aGuard(m_rMutex);
      61         629 :         m_pAdapter->release();
      62         629 :         m_pAdapter = NULL;
      63             :     }
      64             : 
      65        1302 :     if (pAdapter)
      66             :     {
      67         673 :         ::osl::MutexGuard aGuard(m_rMutex);
      68         673 :         m_pAdapter = pAdapter;
      69         673 :         m_pAdapter->acquire();
      70             :     }
      71        1302 : }
      72             : 
      73         673 : OPropertyChangeMultiplexer::OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const  Reference< XPropertySet>& _rxSet, bool _bAutoReleaseSet)
      74             :             :m_xSet(_rxSet)
      75             :             ,m_pListener(_pListener)
      76             :             ,m_nLockCount(0)
      77             :             ,m_bListening(false)
      78         673 :             ,m_bAutoSetRelease(_bAutoReleaseSet)
      79             : {
      80         673 :     m_pListener->setAdapter(this);
      81         673 : }
      82             : 
      83             : 
      84        1254 : OPropertyChangeMultiplexer::~OPropertyChangeMultiplexer()
      85             : {
      86        1254 : }
      87             : 
      88             : 
      89          27 : void OPropertyChangeMultiplexer::lock()
      90             : {
      91          27 :     ++m_nLockCount;
      92          27 : }
      93             : 
      94             : 
      95          27 : void OPropertyChangeMultiplexer::unlock()
      96             : {
      97          27 :     --m_nLockCount;
      98          27 : }
      99             : 
     100             : 
     101        1103 : void OPropertyChangeMultiplexer::dispose()
     102             : {
     103        1103 :     if (m_bListening)
     104             :     {
     105         246 :         Reference< XPropertyChangeListener> xPreventDelete(this);
     106             : 
     107         246 :         const OUString* pProperties = m_aProperties.getConstArray();
     108         797 :         for (sal_Int32 i = 0; i < m_aProperties.getLength(); ++i, ++pProperties)
     109         551 :             m_xSet->removePropertyChangeListener(*pProperties, static_cast< XPropertyChangeListener*>(this));
     110             : 
     111         246 :         m_pListener->setAdapter(NULL);
     112             : 
     113         246 :         m_pListener = NULL;
     114         246 :         m_bListening = false;
     115             : 
     116         246 :         if (m_bAutoSetRelease)
     117          63 :             m_xSet = NULL;
     118             :     }
     119        1103 : }
     120             : 
     121             : // XEventListener
     122             : 
     123         454 : void SAL_CALL OPropertyChangeMultiplexer::disposing( const  EventObject& _rSource) throw( RuntimeException, std::exception)
     124             : {
     125         454 :     if (m_pListener)
     126             :     {
     127             :          // tell the listener
     128         383 :         if (!locked())
     129         383 :             m_pListener->_disposing(_rSource);
     130             :         // disconnect the listener
     131         383 :         if (m_pListener)    // may have been reset whilest calling into _disposing
     132         383 :             m_pListener->setAdapter(NULL);
     133             :     }
     134             : 
     135         454 :     m_pListener = NULL;
     136         454 :     m_bListening = false;
     137             : 
     138         454 :     if (m_bAutoSetRelease)
     139          92 :         m_xSet = NULL;
     140         454 : }
     141             : 
     142             : // XPropertyChangeListener
     143             : 
     144         669 : void SAL_CALL OPropertyChangeMultiplexer::propertyChange( const  PropertyChangeEvent& _rEvent ) throw( RuntimeException, std::exception)
     145             : {
     146         669 :     if (m_pListener && !locked())
     147         632 :         m_pListener->_propertyChanged(_rEvent);
     148         669 : }
     149             : 
     150             : 
     151        1033 : void OPropertyChangeMultiplexer::addProperty(const OUString& _sPropertyName)
     152             : {
     153        1033 :     if (m_xSet.is())
     154             :     {
     155        1033 :         m_xSet->addPropertyChangeListener(_sPropertyName, static_cast< XPropertyChangeListener*>(this));
     156        1033 :         m_aProperties.realloc(m_aProperties.getLength() + 1);
     157        1033 :         m_aProperties.getArray()[m_aProperties.getLength()-1] = _sPropertyName;
     158        1033 :         m_bListening = true;
     159             :     }
     160        1033 : }
     161             : 
     162             : 
     163             : }
     164             : 
     165             : 
     166             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */