xref: /aoo4110/main/comphelper/source/container/containermultiplexer.cxx (revision b1cdbd2c)

/**************************************************************
 *
 * 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
//.........................................................................