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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/SelectionMultiplex.hxx>
#include <com/sun/star/view/XSelectionSupplier.hpp>
namespace comphelper
{
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::view;
OSelectionChangeListener::~OSelectionChangeListener()
{
}
void OSelectionChangeListener::_disposing(const EventObject&)
{
// nothing to do here
}
void OSelectionChangeListener::setAdapter(OSelectionChangeMultiplexer* pAdapter)
{
::osl::MutexGuard aGuard(m_rMutex);
m_xAdapter = pAdapter;
}
OSelectionChangeMultiplexer::OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const Reference< XSelectionSupplier>& _rxSet)
:m_xSet(_rxSet)
,m_pListener(_pListener)
,m_nLockCount(0)
{
m_pListener->setAdapter(this);
osl_atomic_increment(&m_refCount);
{
Reference< XSelectionChangeListener> xPreventDelete(this);
m_xSet->addSelectionChangeListener(xPreventDelete);
}
osl_atomic_decrement(&m_refCount);
}
OSelectionChangeMultiplexer::~OSelectionChangeMultiplexer()
{
}
void OSelectionChangeMultiplexer::lock()
{
++m_nLockCount;
}
void OSelectionChangeMultiplexer::unlock()
{
--m_nLockCount;
}
// XEventListener
void SAL_CALL OSelectionChangeMultiplexer::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 whilest calling into _disposing
m_pListener->setAdapter(nullptr);
}
m_pListener = nullptr;
m_xSet = nullptr;
}
// XSelectionChangeListener
void SAL_CALL OSelectionChangeMultiplexer::selectionChanged( const EventObject& _rEvent )
{
if (m_pListener && !locked())
m_pListener->_selectionChanged(_rEvent);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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