comphelper/source/container/containermultiplexer.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 <comphelper/containermultiplexer.hxx>
  21 #include <comphelper/uno3.hxx>
  22 #include <osl/diagnose.h>
  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::container;
  31
  32
  33     //= OContainerListener
  34
  35
  36     OContainerListener::OContainerListener(::osl::Mutex& _rMutex)
  37         :m_pAdapter(NULL)
  38         ,m_rMutex(_rMutex)
  39     {
  40     }
  41
  42
  43     OContainerListener::~OContainerListener()
  44     {
  45         if (m_pAdapter)
  46         {
  47             m_pAdapter->dispose();
  48             m_pAdapter = NULL;
  49         }
  50     }
  51
  52
  53     void OContainerListener::_elementInserted( const ContainerEvent& /*_rEvent*/ )
  54         throw (RuntimeException, std::exception)
  55     {
  56     }
  57
  58
  59     void OContainerListener::_elementRemoved( const ContainerEvent& )
  60         throw (RuntimeException, std::exception)
  61     {
  62     }
  63
  64
  65     void OContainerListener::_elementReplaced( const ContainerEvent& /*_rEvent*/ )
  66         throw (RuntimeException, std::exception)
  67     {
  68     }
  69
  70
  71     void OContainerListener::_disposing(const EventObject& )
  72         throw (RuntimeException, std::exception)
  73     {
  74     }
  75
  76
  77     void OContainerListener::setAdapter(OContainerListenerAdapter* pAdapter)
  78     {
  79         if (m_pAdapter)
  80         {
  81             ::osl::MutexGuard aGuard(m_rMutex);
  82             m_pAdapter->release();
  83             m_pAdapter = NULL;
  84         }
  85
  86         if (pAdapter)
  87         {
  88             ::osl::MutexGuard aGuard(m_rMutex);
  89             m_pAdapter = pAdapter;
  90             m_pAdapter->acquire();
  91         }
  92     }
  93
  94
  95     //= OContainerListenerAdapter
  96
  97
  98     OContainerListenerAdapter::OContainerListenerAdapter(OContainerListener* _pListener,
  99             const  Reference< XContainer >& _rxContainer)
 100         :m_xContainer(_rxContainer)
 101         ,m_pListener(_pListener)
 102         ,m_nLockCount(0)
 103     {
 104         if (m_pListener)
 105             m_pListener->setAdapter(this);
 106
 107         ::comphelper::increment(m_refCount);
 108         try
 109         {
 110             m_xContainer->addContainerListener(this);
 111         }
 112         catch(const Exception&)
 113         {
 114             OSL_FAIL("Exception caught!");
 115         }
 116         ::comphelper::decrement(m_refCount);
 117     }
 118
 119
 120     OContainerListenerAdapter::~OContainerListenerAdapter()
 121     {
 122     }
 123
 124
 125     void OContainerListenerAdapter::dispose()
 126     {
 127         if (m_xContainer.is())
 128         {
 129             try
 130             {
 131                 Reference< XContainerListener > xPreventDelete(this);
 132                 m_xContainer->removeContainerListener(xPreventDelete);
 133                 m_pListener->setAdapter(NULL);
 134             }
 135             catch(const Exception&)
 136             {
 137                 OSL_FAIL("Exception caught!");
 138             }
 139             m_xContainer = NULL;
 140             m_pListener = NULL;
 141         }
 142     }
 143
 144
 145     void SAL_CALL OContainerListenerAdapter::disposing( const  EventObject& _rSource) throw(RuntimeException, std::exception)
 146     {
 147         if (m_pListener)
 148         {
 149              // tell the listener
 150             if (!locked())
 151                 m_pListener->_disposing(_rSource);
 152             // disconnect the listener
 153             if ( m_pListener )
 154                 m_pListener->setAdapter(NULL);
 155         }
 156
 157         m_xContainer = NULL;
 158         m_pListener = NULL;
 159     }
 160
 161
 162     void SAL_CALL OContainerListenerAdapter::elementInserted( const ContainerEvent& _rEvent ) throw(RuntimeException, std::exception)
 163     {
 164         if (m_pListener && !locked())
 165             m_pListener->_elementInserted(_rEvent);
 166     }
 167
 168
 169     void SAL_CALL OContainerListenerAdapter::elementRemoved( const ContainerEvent& _rEvent ) throw(RuntimeException, std::exception)
 170     {
 171         if (m_pListener && !locked())
 172             m_pListener->_elementRemoved(_rEvent);
 173     }
 174
 175
 176     void SAL_CALL OContainerListenerAdapter::elementReplaced( const ContainerEvent& _rEvent ) throw(RuntimeException, std::exception)
 177     {
 178         if (m_pListener && !locked())
 179             m_pListener->_elementReplaced(_rEvent);
 180     }
 181
 182
 183 }   // namespace comphelper
 184
 185
 186 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */