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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 <com/sun/star/beans/XPropertySet.hpp>
#include <comphelper/propmultiplex.hxx>
#include <osl/diagnose.h>
namespace comphelper
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::beans;
OPropertyChangeListener::~OPropertyChangeListener()
{
if (m_xAdapter.is())
m_xAdapter->dispose();
}
void OPropertyChangeListener::_disposing(const EventObject&)
{
// nothing to do here
}
void OPropertyChangeListener::disposeAdapter()
{
if ( m_xAdapter.is() )
m_xAdapter->dispose();
// will automatically set a new adapter
OSL_ENSURE( !m_xAdapter.is(), "OPropertyChangeListener::disposeAdapter: what did dispose do?" );
}
void OPropertyChangeListener::setAdapter(OPropertyChangeMultiplexer* pAdapter)
{
::osl::MutexGuard aGuard(m_rMutex);
m_xAdapter = pAdapter;
}
OPropertyChangeMultiplexer::OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const Reference< XPropertySet>& _rxSet, bool _bAutoReleaseSet)
:m_xSet(_rxSet)
,m_pListener(_pListener)
,m_nLockCount(0)
,m_bListening(false)
,m_bAutoSetRelease(_bAutoReleaseSet)
{
m_pListener->setAdapter(this);
}
OPropertyChangeMultiplexer::~OPropertyChangeMultiplexer()
{
}
void OPropertyChangeMultiplexer::lock()
{
++m_nLockCount;
}
void OPropertyChangeMultiplexer::unlock()
{
--m_nLockCount;
}
void OPropertyChangeMultiplexer::dispose()
{
if (!m_bListening)
return;
Reference< XPropertyChangeListener> xPreventDelete(this);
for (const OUString& rProp : m_aProperties)
m_xSet->removePropertyChangeListener(rProp, static_cast< XPropertyChangeListener*>(this));
m_pListener->setAdapter(nullptr);
m_pListener = nullptr;
m_bListening = false;
if (m_bAutoSetRelease)
m_xSet = nullptr;
}
// XEventListener
void SAL_CALL OPropertyChangeMultiplexer::disposing( const EventObject& _rSource)
{
if (m_pListener)
{
// tell the listener
if (!locked())
m_pListener->_disposing(_rSource);
// disconnect the listener
if (m_pListener) // may have been reset whilst calling into _disposing
m_pListener->setAdapter(nullptr);
}
m_pListener = nullptr;
m_bListening = false;
if (m_bAutoSetRelease)
m_xSet = nullptr;
}
// XPropertyChangeListener
void SAL_CALL OPropertyChangeMultiplexer::propertyChange( const PropertyChangeEvent& _rEvent )
{
if (m_pListener && !locked())
m_pListener->_propertyChanged(_rEvent);
}
void OPropertyChangeMultiplexer::addProperty(const OUString& _sPropertyName)
{
if (m_xSet.is())
{
m_xSet->addPropertyChangeListener(_sPropertyName, static_cast< XPropertyChangeListener*>(this));
m_aProperties.push_back(_sPropertyName);
m_bListening = true;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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