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 <osl/diagnose.h>
  22
  23 namespace comphelper
  24 {
  25
  26
  27     using namespace ::com::sun::star::uno;
  28     using namespace ::com::sun::star::lang;
  29     using namespace ::com::sun::star::container;
  30
  31     OContainerListener::OContainerListener(::osl::Mutex& _rMutex)
  32         :m_pAdapter(NULL)
  33         ,m_rMutex(_rMutex)
  34     {
  35     }
  36
  37
  38     OContainerListener::~OContainerListener()
  39     {
  40         if (m_pAdapter)
  41         {
  42             m_pAdapter->dispose();
  43             m_pAdapter = NULL;
  44         }
  45     }
  46
  47
  48     void OContainerListener::_elementInserted( const ContainerEvent& /*_rEvent*/ )
  49         throw (RuntimeException, std::exception)
  50     {
  51     }
  52
  53
  54     void OContainerListener::_elementRemoved( const ContainerEvent& )
  55         throw (RuntimeException, std::exception)
  56     {
  57     }
  58
  59
  60     void OContainerListener::_elementReplaced( const ContainerEvent& /*_rEvent*/ )
  61         throw (RuntimeException, std::exception)
  62     {
  63     }
  64
  65
  66     void OContainerListener::_disposing(const EventObject& )
  67         throw (RuntimeException, std::exception)
  68     {
  69     }
  70
  71
  72     void OContainerListener::setAdapter(OContainerListenerAdapter* pAdapter)
  73     {
  74         if (m_pAdapter)
  75         {
  76             ::osl::MutexGuard aGuard(m_rMutex);
  77             m_pAdapter->release();
  78             m_pAdapter = NULL;
  79         }
  80
  81         if (pAdapter)
  82         {
  83             ::osl::MutexGuard aGuard(m_rMutex);
  84             m_pAdapter = pAdapter;
  85             m_pAdapter->acquire();
  86         }
  87     }
  88
  89     OContainerListenerAdapter::OContainerListenerAdapter(OContainerListener* _pListener,
  90             const  Reference< XContainer >& _rxContainer)
  91         :m_xContainer(_rxContainer)
  92         ,m_pListener(_pListener)
  93         ,m_nLockCount(0)
  94     {
  95         if (m_pListener)
  96             m_pListener->setAdapter(this);
  97
  98         osl_atomic_increment(&m_refCount);
  99         try
 100         {
 101             m_xContainer->addContainerListener(this);
 102         }
 103         catch(const Exception&)
 104         {
 105             OSL_FAIL("Exception caught!");
 106         }
 107         osl_atomic_decrement(&m_refCount);
 108     }
 109
 110
 111     OContainerListenerAdapter::~OContainerListenerAdapter()
 112     {
 113     }
 114
 115
 116     void OContainerListenerAdapter::dispose()
 117     {
 118         if (m_xContainer.is())
 119         {
 120             try
 121             {
 122                 Reference< XContainerListener > xPreventDelete(this);
 123                 m_xContainer->removeContainerListener(xPreventDelete);
 124                 m_pListener->setAdapter(NULL);
 125             }
 126             catch(const Exception&)
 127             {
 128                 OSL_FAIL("Exception caught!");
 129             }
 130             m_xContainer = NULL;
 131             m_pListener = NULL;
 132         }
 133     }
 134
 135
 136     void SAL_CALL OContainerListenerAdapter::disposing( const  EventObject& _rSource) throw(RuntimeException, std::exception)
 137     {
 138         if (m_pListener)
 139         {
 140              // tell the listener
 141             if (!locked())
 142                 m_pListener->_disposing(_rSource);
 143             // disconnect the listener
 144             if ( m_pListener )
 145                 m_pListener->setAdapter(NULL);
 146         }
 147
 148         m_xContainer = NULL;
 149         m_pListener = NULL;
 150     }
 151
 152
 153     void SAL_CALL OContainerListenerAdapter::elementInserted( const ContainerEvent& _rEvent ) throw(RuntimeException, std::exception)
 154     {
 155         if (m_pListener && !locked())
 156             m_pListener->_elementInserted(_rEvent);
 157     }
 158
 159
 160     void SAL_CALL OContainerListenerAdapter::elementRemoved( const ContainerEvent& _rEvent ) throw(RuntimeException, std::exception)
 161     {
 162         if (m_pListener && !locked())
 163             m_pListener->_elementRemoved(_rEvent);
 164     }
 165
 166
 167     void SAL_CALL OContainerListenerAdapter::elementReplaced( const ContainerEvent& _rEvent ) throw(RuntimeException, std::exception)
 168     {
 169         if (m_pListener && !locked())
 170             m_pListener->_elementReplaced(_rEvent);
 171     }
 172
 173
 174 }   // namespace comphelper
 175
 176
 177 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */