xref: /AOO42X/main/comphelper/source/container/containermultiplexer.cxx (revision e2530cf997e32d49427a30bc8b11ebe297a9a57e)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_comphelper.hxx"
#include "comphelper/containermultiplexer.hxx"
#include "comphelper/uno3.hxx"
#include <osl/diagnose.h>
//.........................................................................
namespace comphelper
{
//.........................................................................

    using namespace ::com::sun::star::uno;
    using namespace ::com::sun::star::lang;
    using namespace ::com::sun::star::container;

    //=====================================================================
    //= OContainerListener
    //=====================================================================
    //---------------------------------------------------------------------
    OContainerListener::OContainerListener(::osl::Mutex& _rMutex)
        :m_pAdapter(NULL)
        ,m_rMutex(_rMutex)
    {
    }

    //---------------------------------------------------------------------
    OContainerListener::~OContainerListener()
    {
        if (m_pAdapter)
        {
            m_pAdapter->dispose();
            m_pAdapter = NULL;
        }
    }

    //---------------------------------------------------------------------
    void OContainerListener::_elementInserted( const ContainerEvent& /*_rEvent*/ ) throw(RuntimeException)
    {
    }

    //---------------------------------------------------------------------
    void OContainerListener::_elementRemoved( const ContainerEvent& ) throw(RuntimeException)
    {
    }

    //---------------------------------------------------------------------
    void OContainerListener::_elementReplaced( const ContainerEvent& /*_rEvent*/ ) throw(RuntimeException)
    {
    }

    //---------------------------------------------------------------------
    void OContainerListener::_disposing(const EventObject& ) throw( RuntimeException)
    {
    }

    //------------------------------------------------------------------
    void OContainerListener::setAdapter(OContainerListenerAdapter* pAdapter)
    {
        if (m_pAdapter)
        {
            ::osl::MutexGuard aGuard(m_rMutex);
            m_pAdapter->release();
            m_pAdapter = NULL;
        }

        if (pAdapter)
        {
            ::osl::MutexGuard aGuard(m_rMutex);
            m_pAdapter = pAdapter;
            m_pAdapter->acquire();
        }
    }

    //=====================================================================
    //= OContainerListenerAdapter
    //=====================================================================
    //---------------------------------------------------------------------
    OContainerListenerAdapter::OContainerListenerAdapter(OContainerListener* _pListener,
            const Reference< XContainer >& _rxContainer)
        :m_xContainer(_rxContainer)
        ,m_pListener(_pListener)
        ,m_nLockCount(0)
    {
        if (m_pListener)
            m_pListener->setAdapter(this);

        ::comphelper::increment(m_refCount);
        try
        {
            m_xContainer->addContainerListener(this);
        }
        catch(const Exception&)
        {
            OSL_ENSURE(0,"Exceptiopn catched!");
        }
        ::comphelper::decrement(m_refCount);
    }

    //---------------------------------------------------------------------
    OContainerListenerAdapter::~OContainerListenerAdapter()
    {
    }

    //------------------------------------------------------------------
    void OContainerListenerAdapter::lock()
    {
        ++m_nLockCount;
    }

    //------------------------------------------------------------------
    void OContainerListenerAdapter::unlock()
    {
        --m_nLockCount;
    }

    //------------------------------------------------------------------
    void OContainerListenerAdapter::dispose()
    {
        if (m_xContainer.is())
        {
            try
            {
                Reference< XContainerListener > xPreventDelete(this);
                m_xContainer->removeContainerListener(xPreventDelete);
                m_pListener->setAdapter(NULL);
            }
            catch(const Exception&)
            {
                OSL_ENSURE(0,"Exception catched!");
            }
            m_xContainer = NULL;
            m_pListener = NULL;
        }
    }

    //------------------------------------------------------------------
    void SAL_CALL OContainerListenerAdapter::disposing( const EventObject& _rSource) throw(RuntimeException)
    {
        if (m_pListener)
        {
             // tell the listener
            if (!locked())
                m_pListener->_disposing(_rSource);
            // disconnect the listener
            if ( m_pListener )
                m_pListener->setAdapter(NULL);
        }

        m_xContainer = NULL;
        m_pListener = NULL;
    }

    //------------------------------------------------------------------
    void SAL_CALL OContainerListenerAdapter::elementInserted( const ContainerEvent& _rEvent ) throw(RuntimeException)
    {
        if (m_pListener && !locked())
            m_pListener->_elementInserted(_rEvent);
    }

    //------------------------------------------------------------------
    void SAL_CALL OContainerListenerAdapter::elementRemoved( const ContainerEvent& _rEvent ) throw(RuntimeException)
    {
        if (m_pListener && !locked())
            m_pListener->_elementRemoved(_rEvent);
    }

    //------------------------------------------------------------------
    void SAL_CALL OContainerListenerAdapter::elementReplaced( const ContainerEvent& _rEvent ) throw(RuntimeException)
    {
        if (m_pListener && !locked())
            m_pListener->_elementReplaced(_rEvent);
    }

//.........................................................................
}   // namespace comphelper
//.........................................................................