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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_chart2.hxx"
#include "ModifyListenerHelper.hxx"
#include "WeakListenerAdapter.hxx"
#include "macros.hxx"
#include <cppuhelper/interfacecontainer.hxx>
#include <com/sun/star/frame/XModel.hpp>
using namespace ::com::sun::star;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::Sequence;
using ::rtl::OUString;
namespace
{
void lcl_fireModifyEvent(
::cppu::OBroadcastHelper & rBroadcastHelper,
const Reference< uno::XWeak > & xEventSource,
const lang::EventObject * pEvent )
{
::cppu::OInterfaceContainerHelper * pCntHlp = rBroadcastHelper.getContainer(
::getCppuType( reinterpret_cast< Reference< util::XModifyListener > * >(0)));
if( pCntHlp )
{
lang::EventObject aEventToSend;
if( pEvent )
aEventToSend = *pEvent;
else
aEventToSend.Source.set( xEventSource );
OSL_ENSURE( aEventToSend.Source.is(), "Sending event without source" );
::cppu::OInterfaceIteratorHelper aIt( *pCntHlp );
while( aIt.hasMoreElements())
{
Reference< util::XModifyListener > xModListener( aIt.next(), uno::UNO_QUERY );
if( xModListener.is())
xModListener->modified( aEventToSend );
}
}
}
struct lcl_weakReferenceToSame : public ::std::unary_function<
::std::pair<
::com::sun::star::uno::WeakReference< ::com::sun::star::util::XModifyListener >,
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > >,
bool >
{
lcl_weakReferenceToSame( const Reference< util::XModifyListener > & xModListener ) :
m_xHardRef( xModListener )
{}
bool operator() ( const argument_type & xElem )
{
Reference< util::XModifyListener > xWeakAsHard( xElem.first );
if( xWeakAsHard.is())
return (xWeakAsHard == m_xHardRef);
return false;
}
private:
Reference< util::XModifyListener > m_xHardRef;
};
} // anonymous namespace
// ================================================================================
namespace chart
{
namespace ModifyListenerHelper
{
uno::Reference< util::XModifyListener > createModifyEventForwarder()
{
return new ModifyEventForwarder();
}
ModifyEventForwarder::ModifyEventForwarder() :
::cppu::WeakComponentImplHelper2<
::com::sun::star::util::XModifyBroadcaster,
::com::sun::star::util::XModifyListener >( m_aMutex ),
m_aModifyListeners( m_aMutex )
{
}
void ModifyEventForwarder::FireEvent( const lang::EventObject & rEvent )
{
lcl_fireModifyEvent( m_aModifyListeners, Reference< uno::XWeak >(), & rEvent );
}
void ModifyEventForwarder::AddListener( const Reference< util::XModifyListener >& aListener )
{
try
{
Reference< util::XModifyListener > xListenerToAdd( aListener );
Reference< uno::XWeak > xWeak( aListener, uno::UNO_QUERY );
if( xWeak.is())
{
// remember the helper class for later remove
uno::WeakReference< util::XModifyListener > xWeakRef( aListener );
xListenerToAdd.set( new WeakModifyListenerAdapter( xWeakRef ));
m_aListenerMap.push_back( tListenerMap::value_type( xWeakRef, xListenerToAdd ));
}
m_aModifyListeners.addListener( ::getCppuType( &xListenerToAdd ), xListenerToAdd );
}
catch( const uno::Exception & ex )
{
ASSERT_EXCEPTION( ex );
}
}
void ModifyEventForwarder::RemoveListener( const Reference< util::XModifyListener >& aListener )
{
try
{
// look up fitting helper class that has been added
Reference< util::XModifyListener > xListenerToRemove( aListener );
tListenerMap::iterator aIt(
::std::find_if( m_aListenerMap.begin(), m_aListenerMap.end(), lcl_weakReferenceToSame( aListener )));
if( aIt != m_aListenerMap.end())
{
xListenerToRemove.set( (*aIt).second );
// map entry is no longer needed
m_aListenerMap.erase( aIt );
}
m_aModifyListeners.removeListener( ::getCppuType( &aListener ), xListenerToRemove );
}
catch( const uno::Exception & ex )
{
ASSERT_EXCEPTION( ex );
}
}
void ModifyEventForwarder::DisposeAndClear( const Reference< uno::XWeak > & xSource )
{
::cppu::OInterfaceContainerHelper * pCntHlp = m_aModifyListeners.getContainer(
::getCppuType( reinterpret_cast< Reference< util::XModifyListener > * >(0)));
if( pCntHlp )
pCntHlp->disposeAndClear( lang::EventObject( xSource ) );
}
// ____ XModifyBroadcaster ____
void SAL_CALL ModifyEventForwarder::addModifyListener( const Reference< util::XModifyListener >& aListener )
throw (uno::RuntimeException)
{
AddListener( aListener );
}
void SAL_CALL ModifyEventForwarder::removeModifyListener( const Reference< util::XModifyListener >& aListener )
throw (uno::RuntimeException)
{
RemoveListener( aListener );
}
// ____ XModifyListener ____
void SAL_CALL ModifyEventForwarder::modified( const lang::EventObject& aEvent )
throw (uno::RuntimeException)
{
FireEvent( aEvent );
}
// ____ XEventListener (base of XModifyListener) ____
void SAL_CALL ModifyEventForwarder::disposing( const lang::EventObject& /* Source */ )
throw (uno::RuntimeException)
{
// nothing
}
// ____ WeakComponentImplHelperBase ____
void SAL_CALL ModifyEventForwarder::disposing()
{
// dispose was called at this
DisposeAndClear( this );
}
} // namespace ModifyListenerHelper
} // namespace chart
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