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             : 
      33             : //= OPropertyChangeListener
      34             : 
      35             : 
      36           0 : OPropertyChangeListener::~OPropertyChangeListener()
      37             : {
      38           0 :     if (m_pAdapter)
      39           0 :         m_pAdapter->dispose();
      40           0 : }
      41             : 
      42             : 
      43           0 : void OPropertyChangeListener::_disposing(const EventObject&)
      44             :     throw (RuntimeException, std::exception)
      45             : {
      46             :     // nothing to do here
      47           0 : }
      48             : 
      49             : 
      50           0 : void OPropertyChangeListener::disposeAdapter()
      51             : {
      52           0 :     if ( m_pAdapter )
      53           0 :         m_pAdapter->dispose();
      54             : 
      55             :     // will automatically set a new adapter
      56             :     OSL_ENSURE( !m_pAdapter, "OPropertyChangeListener::disposeAdapter: what did dispose do?" );
      57           0 : }
      58             : 
      59             : 
      60           0 : void OPropertyChangeListener::setAdapter(OPropertyChangeMultiplexer* pAdapter)
      61             : {
      62           0 :     if (m_pAdapter)
      63             :     {
      64           0 :         ::osl::MutexGuard aGuard(m_rMutex);
      65           0 :         m_pAdapter->release();
      66           0 :         m_pAdapter = NULL;
      67             :     }
      68             : 
      69           0 :     if (pAdapter)
      70             :     {
      71           0 :         ::osl::MutexGuard aGuard(m_rMutex);
      72           0 :         m_pAdapter = pAdapter;
      73           0 :         m_pAdapter->acquire();
      74             :     }
      75           0 : }
      76             : 
      77             : 
      78             : //= OPropertyChangeMultiplexer
      79             : 
      80             : 
      81           0 : OPropertyChangeMultiplexer::OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const  Reference< XPropertySet>& _rxSet, bool _bAutoReleaseSet)
      82             :             :m_xSet(_rxSet)
      83             :             ,m_pListener(_pListener)
      84             :             ,m_nLockCount(0)
      85             :             ,m_bListening(false)
      86           0 :             ,m_bAutoSetRelease(_bAutoReleaseSet)
      87             : {
      88           0 :     m_pListener->setAdapter(this);
      89           0 : }
      90             : 
      91             : 
      92           0 : OPropertyChangeMultiplexer::~OPropertyChangeMultiplexer()
      93             : {
      94           0 : }
      95             : 
      96             : 
      97           0 : void OPropertyChangeMultiplexer::lock()
      98             : {
      99           0 :     ++m_nLockCount;
     100           0 : }
     101             : 
     102             : 
     103           0 : void OPropertyChangeMultiplexer::unlock()
     104             : {
     105           0 :     --m_nLockCount;
     106           0 : }
     107             : 
     108             : 
     109           0 : void OPropertyChangeMultiplexer::dispose()
     110             : {
     111           0 :     if (m_bListening)
     112             :     {
     113           0 :         Reference< XPropertyChangeListener> xPreventDelete(this);
     114             : 
     115           0 :         const OUString* pProperties = m_aProperties.getConstArray();
     116           0 :         for (sal_Int32 i = 0; i < m_aProperties.getLength(); ++i, ++pProperties)
     117           0 :             m_xSet->removePropertyChangeListener(*pProperties, static_cast< XPropertyChangeListener*>(this));
     118             : 
     119           0 :         m_pListener->setAdapter(NULL);
     120             : 
     121           0 :         m_pListener = NULL;
     122           0 :         m_bListening = false;
     123             : 
     124           0 :         if (m_bAutoSetRelease)
     125           0 :             m_xSet = NULL;
     126             :     }
     127           0 : }
     128             : 
     129             : // XEventListener
     130             : 
     131           0 : void SAL_CALL OPropertyChangeMultiplexer::disposing( const  EventObject& _rSource) throw( RuntimeException, std::exception)
     132             : {
     133           0 :     if (m_pListener)
     134             :     {
     135             :          // tell the listener
     136           0 :         if (!locked())
     137           0 :             m_pListener->_disposing(_rSource);
     138             :         // disconnect the listener
     139           0 :         if (m_pListener)    // may have been reset whilest calling into _disposing
     140           0 :             m_pListener->setAdapter(NULL);
     141             :     }
     142             : 
     143           0 :     m_pListener = NULL;
     144           0 :     m_bListening = false;
     145             : 
     146           0 :     if (m_bAutoSetRelease)
     147           0 :         m_xSet = NULL;
     148           0 : }
     149             : 
     150             : // XPropertyChangeListener
     151             : 
     152           0 : void SAL_CALL OPropertyChangeMultiplexer::propertyChange( const  PropertyChangeEvent& _rEvent ) throw( RuntimeException, std::exception)
     153             : {
     154           0 :     if (m_pListener && !locked())
     155           0 :         m_pListener->_propertyChanged(_rEvent);
     156           0 : }
     157             : 
     158             : 
     159           0 : void OPropertyChangeMultiplexer::addProperty(const OUString& _sPropertyName)
     160             : {
     161           0 :     if (m_xSet.is())
     162             :     {
     163           0 :         m_xSet->addPropertyChangeListener(_sPropertyName, static_cast< XPropertyChangeListener*>(this));
     164           0 :         m_aProperties.realloc(m_aProperties.getLength() + 1);
     165           0 :         m_aProperties.getArray()[m_aProperties.getLength()-1] = _sPropertyName;
     166           0 :         m_bListening = true;
     167             :     }
     168           0 : }
     169             : 
     170             : 
     171             : }
     172             : 
     173             : 
     174             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */