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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.
*
************************************************************************/
#ifndef CHART2_MODIFYLISTENERHELPER_HXX
#define CHART2_MODIFYLISTENERHELPER_HXX
#include <cppuhelper/interfacecontainer.hxx>
#include <com/sun/star/util/XModifyListener.hpp>
#include <com/sun/star/util/XModifyBroadcaster.hpp>
#include <com/sun/star/util/XModifiable.hpp>
#include <com/sun/star/uno/XWeak.hpp>
#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/compbase2.hxx>
#include <cppuhelper/weakref.hxx>
#include "MutexContainer.hxx"
#include "charttoolsdllapi.hxx"
#include <list>
#include <algorithm>
#include <functional>
#include <utility>
namespace com { namespace sun { namespace star {
namespace chart2
{
class XChartDocument;
}}}}
namespace chart
{
namespace ModifyListenerHelper
{
OOO_DLLPUBLIC_CHARTTOOLS ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > createModifyEventForwarder();
// ================================================================================
/** This helper class serves as forwarder of modify events. It can be used
whenever an object has to send modify events after it gets a modify event of
one of its children.
<p>The listeners are held as WeakReferences if they support XWeak. Thus the
life time of the listeners is independent of the broadcaster's lifetime in
this case.</p>
*/
class ModifyEventForwarder :
public MutexContainer,
public ::cppu::WeakComponentImplHelper2<
::com::sun::star::util::XModifyBroadcaster,
::com::sun::star::util::XModifyListener >
{
public:
ModifyEventForwarder();
void FireEvent( const ::com::sun::star::lang::EventObject & rEvent );
void AddListener(
const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener );
void RemoveListener(
const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener );
protected:
// ____ XModifyBroadcaster ____
virtual void SAL_CALL addModifyListener(
const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener )
throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL removeModifyListener(
const ::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener >& aListener )
throw (::com::sun::star::uno::RuntimeException);
// ____ XModifyListener ____
virtual void SAL_CALL modified(
const ::com::sun::star::lang::EventObject& aEvent )
throw (::com::sun::star::uno::RuntimeException);
// ____ XEventListener (base of XModifyListener) ____
virtual void SAL_CALL disposing(
const ::com::sun::star::lang::EventObject& Source )
throw (::com::sun::star::uno::RuntimeException);
// ____ WeakComponentImplHelperBase ____
virtual void SAL_CALL disposing();
private:
/// call disposing() at all listeners and remove all listeners
void DisposeAndClear( const ::com::sun::star::uno::Reference<
::com::sun::star::uno::XWeak > & xSource );
// ::osl::Mutex & m_rMutex;
::cppu::OBroadcastHelper m_aModifyListeners;
typedef ::std::list<
::std::pair<
::com::sun::star::uno::WeakReference< ::com::sun::star::util::XModifyListener >,
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > > >
tListenerMap;
tListenerMap m_aListenerMap;
};
// ================================================================================
namespace impl
{
template< class InterfaceRef >
struct addListenerFunctor : public ::std::unary_function< InterfaceRef, void >
{
explicit addListenerFunctor( const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener ) :
m_xListener( xListener )
{}
void operator() ( const InterfaceRef & xObject )
{
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >
xBroadcaster( xObject, ::com::sun::star::uno::UNO_QUERY );
if( xBroadcaster.is() && m_xListener.is())
xBroadcaster->addModifyListener( m_xListener );
}
private:
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener;
};
template< class InterfaceRef >
struct removeListenerFunctor : public ::std::unary_function< InterfaceRef, void >
{
explicit removeListenerFunctor( const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener ) :
m_xListener( xListener )
{}
void operator() ( const InterfaceRef & xObject )
{
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >
xBroadcaster( xObject, ::com::sun::star::uno::UNO_QUERY );
if( xBroadcaster.is() && m_xListener.is())
xBroadcaster->removeModifyListener( m_xListener );
}
private:
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener;
};
template< class Pair >
struct addListenerToMappedElementFunctor : public ::std::unary_function< Pair, void >
{
explicit addListenerToMappedElementFunctor( const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener ) :
m_xListener( xListener )
{}
void operator() ( const Pair & aPair )
{
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >
xBroadcaster( aPair.second, ::com::sun::star::uno::UNO_QUERY );
if( xBroadcaster.is() && m_xListener.is())
xBroadcaster->addModifyListener( m_xListener );
}
private:
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener;
};
template< class Pair >
struct removeListenerFromMappedElementFunctor : public ::std::unary_function< Pair, void >
{
explicit removeListenerFromMappedElementFunctor( const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener ) :
m_xListener( xListener )
{}
void operator() ( const Pair & aPair )
{
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyBroadcaster >
xBroadcaster( aPair.second, ::com::sun::star::uno::UNO_QUERY );
if( xBroadcaster.is() && m_xListener.is())
xBroadcaster->removeModifyListener( m_xListener );
}
private:
::com::sun::star::uno::Reference< ::com::sun::star::util::XModifyListener > m_xListener;
};
} // namespace impl
// --------------------------------------------------------------------------------
template< class InterfaceRef >
void addListener(
const InterfaceRef & xObject,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
{
impl::addListenerFunctor< InterfaceRef > aFunctor( xListener );
aFunctor( xObject );
}
}
template< class Container >
void addListenerToAllElements(
const Container & rContainer,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
::std::for_each( rContainer.begin(), rContainer.end(),
impl::addListenerFunctor< typename Container::value_type >( xListener ));
}
template< class Container >
void addListenerToAllMapElements(
const Container & rContainer,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
::std::for_each( rContainer.begin(), rContainer.end(),
impl::addListenerToMappedElementFunctor< typename Container::value_type >( xListener ));
}
template< typename T >
void addListenerToAllSequenceElements(
const ::com::sun::star::uno::Sequence< T > & rSequence,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
::std::for_each( rSequence.getConstArray(), rSequence.getConstArray() + rSequence.getLength(),
impl::addListenerFunctor< T >( xListener ));
}
template< class InterfaceRef >
void removeListener(
const InterfaceRef & xObject,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
{
impl::removeListenerFunctor< InterfaceRef > aFunctor( xListener );
aFunctor( xObject );
}
}
template< class Container >
void removeListenerFromAllElements(
const Container & rContainer,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
::std::for_each( rContainer.begin(), rContainer.end(),
impl::removeListenerFunctor< typename Container::value_type >( xListener ));
}
template< class Container >
void removeListenerFromAllMapElements(
const Container & rContainer,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
::std::for_each( rContainer.begin(), rContainer.end(),
impl::removeListenerFromMappedElementFunctor< typename Container::value_type >( xListener ));
}
template< typename T >
void removeListenerFromAllSequenceElements(
const ::com::sun::star::uno::Sequence< T > & rSequence,
const ::com::sun::star::uno::Reference<
::com::sun::star::util::XModifyListener > & xListener )
{
if( xListener.is())
::std::for_each( rSequence.getConstArray(), rSequence.getConstArray() + rSequence.getLength(),
impl::removeListenerFunctor< T >( xListener ));
}
} // namespace ModifyListenerHelper
} // namespace chart
// CHART2_MODIFYLISTENERHELPER_HXX
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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