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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* 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.
*
************************************************************************/
#include <unotools/eventlisteneradapter.hxx>
#include <osl/diagnose.h>
#include <cppuhelper/implbase1.hxx>
#include <comphelper/stl_types.hxx>
//.........................................................................
namespace utl
{
//.........................................................................
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
//=====================================================================
//= OEventListenerImpl
//=====================================================================
class OEventListenerImpl : public ::cppu::WeakImplHelper1< XEventListener >
{
protected:
OEventListenerAdapter* m_pAdapter;
Reference< XEventListener > m_xKeepMeAlive;
// imagine an implementation of XComponent which holds it's listeners with a weak reference ...
// would be very bad if we don't hold ourself
Reference< XComponent > m_xComponent;
public:
OEventListenerImpl( OEventListenerAdapter* _pAdapter, const Reference< XComponent >& _rxComp );
void dispose();
const Reference< XComponent >& getComponent() const { return m_xComponent; }
protected:
virtual void SAL_CALL disposing( const EventObject& _rSource ) throw (RuntimeException);
};
//---------------------------------------------------------------------
OEventListenerImpl::OEventListenerImpl( OEventListenerAdapter* _pAdapter, const Reference< XComponent >& _rxComp )
:m_pAdapter(_pAdapter)
{
OSL_ENSURE(m_pAdapter, "OEventListenerImpl::OEventListenerImpl: invalid adapter!");
// no checks of _rxComp !!
// (OEventListenerAdapter is responsible for this)
// just in case addEventListener throws an exception ... don't initialize m_xKeepMeAlive before this
// is done
Reference< XEventListener > xMeMyselfAndI = this;
_rxComp->addEventListener(xMeMyselfAndI);
m_xComponent = _rxComp;
m_xKeepMeAlive = xMeMyselfAndI;
}
//---------------------------------------------------------------------
void OEventListenerImpl::dispose()
{
if (m_xComponent.is())
{
m_xComponent->removeEventListener(m_xKeepMeAlive);
m_xComponent.clear();
m_xKeepMeAlive.clear();
}
}
//---------------------------------------------------------------------
void SAL_CALL OEventListenerImpl::disposing( const EventObject& _rSource ) throw (RuntimeException)
{
Reference< XEventListener > xDeleteUponLeaving = m_xKeepMeAlive;
m_xKeepMeAlive.clear();
m_xComponent.clear();
m_pAdapter->_disposing(_rSource);
}
//=====================================================================
//= OEventListenerAdapterImpl
//=====================================================================
struct OEventListenerAdapterImpl
{
public:
::std::vector< void* > aListeners;
};
//=====================================================================
//= OEventListenerAdapter
//=====================================================================
//---------------------------------------------------------------------
OEventListenerAdapter::OEventListenerAdapter()
:m_pImpl(new OEventListenerAdapterImpl)
{
}
//---------------------------------------------------------------------
OEventListenerAdapter::~OEventListenerAdapter()
{
stopAllComponentListening( );
delete m_pImpl;
m_pImpl = NULL;
}
//---------------------------------------------------------------------
void OEventListenerAdapter::stopComponentListening( const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent >& _rxComp )
{
if ( m_pImpl->aListeners.empty() )
return;
::std::vector< void* >::iterator dispose = m_pImpl->aListeners.begin();
do
{
OEventListenerImpl* pListenerImpl = static_cast< OEventListenerImpl* >( *dispose );
if ( pListenerImpl->getComponent().get() == _rxComp.get() )
{
pListenerImpl->dispose();
pListenerImpl->release();
dispose = m_pImpl->aListeners.erase( dispose );
}
else
++dispose;
}
while ( dispose != m_pImpl->aListeners.end() );
}
//---------------------------------------------------------------------
void OEventListenerAdapter::stopAllComponentListening( )
{
for ( ::std::vector< void* >::const_iterator aDisposeLoop = m_pImpl->aListeners.begin();
aDisposeLoop != m_pImpl->aListeners.end();
++aDisposeLoop
)
{
OEventListenerImpl* pListenerImpl = static_cast< OEventListenerImpl* >(*aDisposeLoop);
pListenerImpl->dispose();
pListenerImpl->release();
}
m_pImpl->aListeners.clear();
}
//---------------------------------------------------------------------
void OEventListenerAdapter::startComponentListening( const Reference< XComponent >& _rxComp )
{
if (!_rxComp.is())
{
OSL_FAIL("OEventListenerAdapter::startComponentListening: invalid component!");
return;
}
OEventListenerImpl* pListenerImpl = new OEventListenerImpl(this, _rxComp);
pListenerImpl->acquire();
m_pImpl->aListeners.push_back(pListenerImpl);
}
//.........................................................................
} // namespace utl
//.........................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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