/**************************************************************
 * 
 * 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_ucbhelper.hxx"

/**************************************************************************
								TODO
 **************************************************************************

 *************************************************************************/
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/ucb/XContentIdentifierFactory.hpp>
#include <com/sun/star/ucb/XContentProvider.hpp>
#include <com/sun/star/ucb/XContentProviderManager.hpp>
#include <osl/mutex.hxx>
#include <ucbhelper/commandenvironmentproxy.hxx>

using namespace com::sun::star::lang;
using namespace com::sun::star::task;
using namespace com::sun::star::ucb;
using namespace com::sun::star::uno;
using namespace rtl;

namespace ucbhelper
{

//=========================================================================
//=========================================================================
//
// struct CommandEnvironmentProxy_Impl.
//
//=========================================================================
//=========================================================================

struct CommandEnvironmentProxy_Impl
{
	osl::Mutex 						 m_aMutex;
	Reference< XCommandEnvironment > m_xEnv;
	Reference< XInteractionHandler > m_xInteractionHandler;
	Reference< XProgressHandler >    m_xProgressHandler;
	sal_Bool m_bGotInteractionHandler;
	sal_Bool m_bGotProgressHandler;

	CommandEnvironmentProxy_Impl(
		const Reference< XCommandEnvironment >&	rxEnv )
	: m_xEnv( rxEnv ), m_bGotInteractionHandler( sal_False ),
	  m_bGotProgressHandler( sal_False ) {}
};

//=========================================================================
//=========================================================================
//
// CommandEnvironmentProxy Implementation.
//
//=========================================================================
//=========================================================================

CommandEnvironmentProxy::CommandEnvironmentProxy(
						const Reference< XCommandEnvironment >& rxEnv )
{
	m_pImpl = new CommandEnvironmentProxy_Impl( rxEnv );
}

//=========================================================================
// virtual
CommandEnvironmentProxy::~CommandEnvironmentProxy()
{
	delete m_pImpl;
}

//=========================================================================
//
// XInterface methods
//
//=========================================================================

XINTERFACE_IMPL_2( CommandEnvironmentProxy,
				   XTypeProvider,
				   XCommandEnvironment );

//=========================================================================
//
// XTypeProvider methods
//
//=========================================================================

XTYPEPROVIDER_IMPL_2( CommandEnvironmentProxy,
					  XTypeProvider,
					  XCommandEnvironment );

//=========================================================================
//
// XCommandEnvironemnt methods.
//
//=========================================================================

// virtual
Reference< XInteractionHandler > SAL_CALL
CommandEnvironmentProxy::getInteractionHandler()
	throw ( RuntimeException )
{
	if ( m_pImpl->m_xEnv.is() )
	{
		if ( !m_pImpl->m_bGotInteractionHandler )
		{
			osl::MutexGuard aGuard( m_pImpl->m_aMutex );
			if ( !m_pImpl->m_bGotInteractionHandler )
			{
				m_pImpl->m_xInteractionHandler
								= m_pImpl->m_xEnv->getInteractionHandler();
				m_pImpl->m_bGotInteractionHandler = sal_True;
			}
		}
	}
	return m_pImpl->m_xInteractionHandler;
}

//=========================================================================
// virtual
Reference< XProgressHandler > SAL_CALL
CommandEnvironmentProxy::getProgressHandler()
	throw ( RuntimeException )
{
	if ( m_pImpl->m_xEnv.is() )
	{
		if ( !m_pImpl->m_bGotProgressHandler )
		{
			osl::MutexGuard aGuard( m_pImpl->m_aMutex );
			if ( !m_pImpl->m_bGotProgressHandler )
			{
				m_pImpl->m_xProgressHandler
								= m_pImpl->m_xEnv->getProgressHandler();
				m_pImpl->m_bGotProgressHandler = sal_True;
			}
		}
	}
	return m_pImpl->m_xProgressHandler;
}

} /* namespace ucbhelper */