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