AOO410/main/odk/examples/cpp/complextoolbarcontrols/ListenerHelper.cxx

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




#include "ListenerHelper.h"

using com::sun::star::frame::XFrame;
using com::sun::star::frame::XDispatch;
using com::sun::star::frame::XStatusListener;
using com::sun::star::lang::XEventListener;
using com::sun::star::lang::EventObject;
using com::sun::star::uno::Reference;
using com::sun::star::uno::RuntimeException;
using com::sun::star::frame::FeatureStateEvent;

static AllListeners aListeners;

void ListenerHelper::AddListener( 
	const Reference < XFrame >& xFrame, 
	const Reference < XStatusListener > xControl, 
	const ::rtl::OUString& aCommand )
{
	sal_uInt32 i=0;
    sal_uInt32 nSize = aListeners.size();
	for ( i=0; i<nSize; i++ )
		if ( aListeners[i].xFrame == xFrame )
			break;

	OSL_ENSURE( i<nSize, "No dispatch found for this listener!" );
	aListeners[i].aContainer[aCommand].push_back( xControl );
}

void ListenerHelper::RemoveListener(
	const Reference < XFrame >& xFrame, 
	const Reference < XStatusListener > xControl, 
	const ::rtl::OUString& aCommand )
{
	sal_uInt32 nSize = aListeners.size();
	for ( sal_uInt32 i=0; i<nSize; i++ )
	{
		if ( aListeners[i].xFrame == xFrame )
		{
			StatusListeners& aL = aListeners[i].aContainer[aCommand];
			StatusListeners::iterator aIter = aL.begin();
			while ( aIter != aL.end() )
			{
				if ( (*aIter) == xControl )
				{
					aL.erase( aIter );
					break;
				}		

				aIter++;
			}
		}
	}
}

void ListenerHelper::Notify( 
		const Reference < XFrame >& xFrame, 
		const ::rtl::OUString& aCommand,
		FeatureStateEvent& rEvent )
{
	sal_uInt32 nSize = aListeners.size();
	for ( sal_uInt32 i=0; i<nSize; i++ )
	{
		if ( aListeners[i].xFrame == xFrame )
		{
			rEvent.Source = aListeners[i].xDispatch;
			StatusListeners& aL = aListeners[i].aContainer[aCommand];
			StatusListeners::iterator aIter = aL.begin();
			while ( aIter != aL.end() )
			{
				(*aIter)->statusChanged( rEvent );
				aIter++;
			}
		}
	}
}

com::sun::star::uno::Reference < XDispatch > ListenerHelper::GetDispatch( 
		const Reference < XFrame >& xFrame, 
		const ::rtl::OUString& aCommand )
{
	sal_uInt32 nSize = aListeners.size();
	for ( sal_uInt32 i=0; i<nSize; i++ )
	{
		if ( aListeners[i].xFrame == xFrame )
			return aListeners[i].xDispatch;
	}

	return Reference < XDispatch >();
}

void ListenerHelper::AddDispatch( 	
		const Reference < XDispatch > xDispatch,
		const Reference < XFrame >& xFrame, 
		const ::rtl::OUString& aCommand )
{
	ListenerItem aItem; 
	aItem.xFrame = xFrame;
	aItem.xDispatch = xDispatch;
	aListeners.push_back( aItem );			
	xFrame->addEventListener( new ListenerItemEventListener( xFrame ) );
}

void SAL_CALL ListenerItemEventListener::disposing( const EventObject& aEvent) throw (RuntimeException)
{
	AllListeners::iterator aIter = aListeners.begin();
	while ( aIter != aListeners.end() )
	{
		if ( (*aIter).xFrame == mxFrame )
		{
			aListeners.erase( aIter );
			break;
		}		

		aIter++;
	}
}