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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <comphelper/listenernotification.hxx>
#include <com/sun/star/lang/DisposedException.hpp>
//........................................................................
namespace comphelper
{
//........................................................................
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
//====================================================================
//= OListenerContainer
//====================================================================
//--------------------------------------------------------------------
OListenerContainer::OListenerContainer( ::osl::Mutex& _rMutex )
:m_aListeners( _rMutex )
{
}
OListenerContainer::~OListenerContainer() {}
//--------------------------------------------------------------------
void OListenerContainer::impl_addListener( const Reference< XEventListener >& _rxListener )
{
OSL_PRECOND( _rxListener.is(), "OListenerContainer::impl_addListener: a NULL listener?!" );
if ( _rxListener.is() )
m_aListeners.addInterface( _rxListener );
}
//--------------------------------------------------------------------
void OListenerContainer::impl_removeListener( const Reference< XEventListener >& _rxListener )
{
#if OSL_DEBUG_LEVEL > 0
::cppu::OInterfaceIteratorHelper aIter( m_aListeners );
bool bFound = false;
while ( aIter.hasMoreElements() && !bFound )
{
bFound = ( Reference< XInterface >( aIter.next() ) == _rxListener );
}
OSL_ENSURE( bFound, "OListenerContainer::impl_removeListener: sure your listener handling is correct? The given listener is not registered!" );
#endif
m_aListeners.removeInterface( _rxListener );
}
//--------------------------------------------------------------------
void OListenerContainer::disposing( const EventObject& _rEventSource )
{
m_aListeners.disposeAndClear( _rEventSource );
}
//--------------------------------------------------------------------
void OListenerContainer::clear()
{
m_aListeners.clear();
}
//--------------------------------------------------------------------
bool OListenerContainer::impl_notify( const EventObject& _rEvent ) SAL_THROW(( Exception ))
{
::cppu::OInterfaceIteratorHelper aIter( m_aListeners );
bool bCancelled = false;
while ( aIter.hasMoreElements() && !bCancelled )
{
Reference< XEventListener > xListener( static_cast< XEventListener* >( aIter.next() ) );
if ( !xListener.is() )
continue;
try
{
bCancelled = !implNotify( xListener, _rEvent );
}
catch( const DisposedException& e )
{
// DisposedExceptions from the listener might indicate a
// broken connection to a different environment.
OSL_ENSURE( e.Context.is(), "OListenerContainer::impl_notify: caught dispose exception with empty Context field" );
// If the exception stems from the listener then remove it
// from the list of listeners. If the Context field of the
// exception is empty this is interpreted to indicate the
// listener as well.
if ( e.Context == xListener || !e.Context.is() )
aIter.remove();
}
}
return !bCancelled;
}
//........................................................................
} // namespace comphelper
//........................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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