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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 <comphelper/weakeventlistener.hxx>
#include <osl/diagnose.h>
//.........................................................................
namespace comphelper
{
//.........................................................................
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
//=====================================================================
//= OWeakListenerAdapter
//=====================================================================
//---------------------------------------------------------------------
OWeakListenerAdapterBase::~OWeakListenerAdapterBase()
{
}
//=====================================================================
//= OWeakEventListenerAdapter
//=====================================================================
//---------------------------------------------------------------------
OWeakEventListenerAdapter::OWeakEventListenerAdapter( Reference< XWeak > _rxListener, Reference< XComponent > _rxBroadcaster )
:OWeakEventListenerAdapter_Base( _rxListener, _rxBroadcaster )
{
// add ourself as listener to the broadcaster
OSL_ENSURE( _rxBroadcaster.is(), "OWeakEventListenerAdapter::OWeakEventListenerAdapter: invalid broadcaster!" );
if ( _rxBroadcaster.is() )
{
osl_incrementInterlockedCount( &m_refCount );
{
_rxBroadcaster->addEventListener( this );
}
osl_decrementInterlockedCount( &m_refCount );
OSL_ENSURE( m_refCount > 0, "OWeakEventListenerAdapter::OWeakEventListenerAdapter: oops - not to be used with implementations which hold their listeners weak!" );
// the one and only reason for this adapter class (A) is to add as listener to a component (C) which
// holds its listeners hard, and forward all calls then to another listener (L) which is
// held weak by A.
// Now if C holds listeners weak, then we do not need A, we can add L directly to C.
}
OSL_ENSURE( getListener().is(), "OWeakEventListenerAdapter::OWeakEventListenerAdapter: invalid listener (does not support the XEventListener interface)!" );
}
//---------------------------------------------------------------------
void SAL_CALL OWeakEventListenerAdapter::disposing( )
{
Reference< XComponent > xBroadcaster( getBroadcaster( ), UNO_QUERY );
OSL_ENSURE( xBroadcaster.is(), "OWeakEventListenerAdapter::disposing: broadcaster is invalid in the meantime! How this?" );
if ( xBroadcaster.is() )
{
xBroadcaster->removeEventListener( this );
}
resetListener();
}
//.........................................................................
} // namespace comphelper
//.........................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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