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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 .
*/
#pragma once
#include <com/sun/star/lang/XComponent.hpp>
#include <algorithm>
namespace com::sun::star::lang { class XEventListener; }
namespace chart
{
namespace EventListenerHelper
{
namespace impl
{
template< class InterfaceRef >
struct addListenerFunctor
{
explicit addListenerFunctor( const css::uno::Reference< css::lang::XEventListener > & xListener ) :
m_xListener( xListener )
{}
void operator() ( const InterfaceRef & xObject )
{
css::uno::Reference< css::lang::XComponent >
xBroadcaster( xObject, css::uno::UNO_QUERY );
if( xBroadcaster.is() && m_xListener.is())
xBroadcaster->addEventListener( m_xListener );
}
private:
css::uno::Reference< css::lang::XEventListener > m_xListener;
};
template< class InterfaceRef >
struct removeListenerFunctor
{
explicit removeListenerFunctor( const css::uno::Reference< css::lang::XEventListener > & xListener ) :
m_xListener( xListener )
{}
void operator() ( const InterfaceRef & xObject )
{
css::uno::Reference< css::lang::XComponent >
xBroadcaster( xObject, css::uno::UNO_QUERY );
if( xBroadcaster.is() && m_xListener.is())
xBroadcaster->removeEventListener( m_xListener );
}
private:
css::uno::Reference< css::lang::XEventListener > m_xListener;
};
} // namespace impl
template< class InterfaceRef >
void addListener(
const InterfaceRef & xObject,
const css::uno::Reference< css::lang::XEventListener > & xListener )
{
if( xListener.is())
{
impl::addListenerFunctor< InterfaceRef > aFunctor( xListener );
aFunctor( xObject );
}
}
template< class Container >
void addListenerToAllElements(
const Container & rContainer,
const css::uno::Reference< css::lang::XEventListener > & xListener )
{
if( xListener.is())
std::for_each( rContainer.begin(), rContainer.end(),
impl::addListenerFunctor< typename Container::value_type >( xListener ));
}
template< class InterfaceRef >
void removeListener(
const InterfaceRef & xObject,
const css::uno::Reference< css::lang::XEventListener > & xListener )
{
if( xListener.is())
{
impl::removeListenerFunctor< InterfaceRef > aFunctor( xListener );
aFunctor( xObject );
}
}
template< class Container >
void removeListenerFromAllElements(
const Container & rContainer,
const css::uno::Reference< css::lang::XEventListener > & xListener )
{
if( xListener.is())
std::for_each( rContainer.begin(), rContainer.end(),
impl::removeListenerFunctor< typename Container::value_type >( xListener ));
}
} // namespace EventListenerHelper
} // namespace chart
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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