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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 <ModifyListenerCallBack.hxx>
#include <comphelper/compbase.hxx>
using namespace ::com::sun::star;
using ::com::sun::star::uno::Reference;
namespace chart {
typedef comphelper::WeakComponentImplHelper< css::util::XModifyListener >
ModifyListenerCallBack_Base;
class ModifyListenerCallBack_impl
: public ModifyListenerCallBack_Base
{
public:
explicit ModifyListenerCallBack_impl( const Link<void*,void>& rCallBack );
void startListening( const Reference< util::XModifyBroadcaster >& xBroadcaster );
void stopListening();
//XModifyListener
virtual void SAL_CALL modified( const lang::EventObject& aEvent ) override;
//XEventListener
virtual void SAL_CALL disposing( const lang::EventObject& Source ) override;
using ::comphelper::WeakComponentImplHelperBase::disposing;
private:
Link<void*,void> m_aLink;//will be called on modify
Reference< util::XModifyBroadcaster > m_xBroadcaster;//broadcaster to listen at
};
ModifyListenerCallBack_impl::ModifyListenerCallBack_impl( const Link<void*,void>& rCallBack )
: m_aLink( rCallBack )
{
}
//XModifyListener
void SAL_CALL ModifyListenerCallBack_impl::modified( const lang::EventObject& /*aEvent*/ )
{
m_aLink.Call(nullptr);
}
//XEventListener
void SAL_CALL ModifyListenerCallBack_impl::disposing( const lang::EventObject& /*Source*/ )
{
m_xBroadcaster.clear();
}
void ModifyListenerCallBack_impl::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
{
if( m_xBroadcaster == xBroadcaster )
return;
stopListening();
m_xBroadcaster = xBroadcaster;
if( m_xBroadcaster.is() )
m_xBroadcaster->addModifyListener( this );
}
void ModifyListenerCallBack_impl::stopListening()
{
if( m_xBroadcaster.is() )
{
m_xBroadcaster->removeModifyListener( this );
m_xBroadcaster.clear();
}
}
ModifyListenerCallBack::ModifyListenerCallBack( const Link<void*,void>& rCallBack )
: pModifyListener_impl( new ModifyListenerCallBack_impl(rCallBack) )
, m_xModifyListener( pModifyListener_impl )
{
}
ModifyListenerCallBack::~ModifyListenerCallBack()
{
stopListening();
}
void ModifyListenerCallBack::startListening( const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >& xBroadcaster )
{
pModifyListener_impl->startListening( xBroadcaster );
}
void ModifyListenerCallBack::stopListening()
{
pModifyListener_impl->stopListening();
}
} // namespace chart
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