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Diffstat (limited to 'chart2/source/inc/ModifyListenerHelper.hxx')
| -rw-r--r-- | chart2/source/inc/ModifyListenerHelper.hxx | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/chart2/source/inc/ModifyListenerHelper.hxx b/chart2/source/inc/ModifyListenerHelper.hxx new file mode 100644 index 000000000..1042e5d20 --- /dev/null +++ b/chart2/source/inc/ModifyListenerHelper.hxx @@ -0,0 +1,273 @@ +/* -*- 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/util/XModifyListener.hpp> +#include <com/sun/star/util/XModifyBroadcaster.hpp> +#include <comphelper/interfacecontainer4.hxx> +#include <comphelper/compbase.hxx> +#include <rtl/ref.hxx> + +#include <mutex> +#include <algorithm> + +namespace chart +{ + +/** 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. + */ +class ModifyEventForwarder final : + public ::comphelper::WeakComponentImplHelper< + css::util::XModifyBroadcaster, + css::util::XModifyListener > +{ +public: + ModifyEventForwarder(); + + // ____ XModifyBroadcaster ____ + virtual void SAL_CALL addModifyListener( + const css::uno::Reference< css::util::XModifyListener >& aListener ) override; + virtual void SAL_CALL removeModifyListener( + const css::uno::Reference< css::util::XModifyListener >& aListener ) override; + + // ____ XModifyListener ____ + virtual void SAL_CALL modified( + const css::lang::EventObject& aEvent ) override; + +private: + // ____ XEventListener (base of XModifyListener) ____ + virtual void SAL_CALL disposing( + const css::lang::EventObject& Source ) override; + + // ____ WeakComponentImplHelperBase ____ + virtual void disposing(std::unique_lock<std::mutex>& ) override; + + comphelper::OInterfaceContainerHelper4<css::util::XModifyListener> m_aModifyListeners; +}; + +} + +namespace chart::ModifyListenerHelper +{ + +namespace impl +{ + +template< class InterfaceRef > +struct addListenerFunctor +{ + explicit addListenerFunctor( const css::uno::Reference< css::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const InterfaceRef & xObject ) + { + css::uno::Reference< css::util::XModifyBroadcaster > + xBroadcaster( xObject, css::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->addModifyListener( m_xListener ); + } +private: + css::uno::Reference< css::util::XModifyListener > m_xListener; +}; + +template< class InterfaceRef > +struct removeListenerFunctor +{ + explicit removeListenerFunctor( const css::uno::Reference< css::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const InterfaceRef & xObject ) + { + css::uno::Reference< css::util::XModifyBroadcaster > + xBroadcaster( xObject, css::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->removeModifyListener( m_xListener ); + } +private: + css::uno::Reference< css::util::XModifyListener > m_xListener; +}; + +template< class Pair > +struct addListenerToMappedElementFunctor +{ + explicit addListenerToMappedElementFunctor( const css::uno::Reference< css::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const Pair & aPair ) + { + css::uno::Reference< css::util::XModifyBroadcaster > + xBroadcaster( aPair.second, css::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->addModifyListener( m_xListener ); + } +private: + css::uno::Reference< css::util::XModifyListener > m_xListener; +}; + +template< class Pair > +struct removeListenerFromMappedElementFunctor +{ + explicit removeListenerFromMappedElementFunctor( const css::uno::Reference< css::util::XModifyListener > & xListener ) : + m_xListener( xListener ) + {} + + void operator() ( const Pair & aPair ) + { + css::uno::Reference< css::util::XModifyBroadcaster > + xBroadcaster( aPair.second, css::uno::UNO_QUERY ); + if( xBroadcaster.is() && m_xListener.is()) + xBroadcaster->removeModifyListener( m_xListener ); + } +private: + css::uno::Reference< css::util::XModifyListener > m_xListener; +}; + +} // namespace impl + +template< class InterfaceRef > +void addListener( + const InterfaceRef & xObject, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + { + impl::addListenerFunctor< InterfaceRef > aFunctor( xListener ); + aFunctor( xObject ); + } +} +template< class T > +void addListener( + const rtl::Reference<T> & xBroadcaster, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xBroadcaster && xListener ) + xBroadcaster->addModifyListener( xListener ); +} + +template< class Container > +void addListenerToAllElements( + const Container & rContainer, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + std::for_each( rContainer.begin(), rContainer.end(), + impl::addListenerFunctor< typename Container::value_type >( xListener )); +} + +template< class T > +void addListenerToAllElements( + const std::vector<rtl::Reference<T>> & rContainer, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( !xListener ) + return; + for (auto const & i : rContainer) + i->addModifyListener(xListener); +} + +template< class Container > +void addListenerToAllMapElements( + const Container & rContainer, + const css::uno::Reference< css::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 css::uno::Sequence< T > & rSequence, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + std::for_each( rSequence.begin(), rSequence.end(), + impl::addListenerFunctor< T >( xListener )); +} + +template< class InterfaceRef > +void removeListener( + const InterfaceRef & xObject, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + { + impl::removeListenerFunctor< InterfaceRef > aFunctor( xListener ); + aFunctor( xObject ); + } +} + +template< class T > +void removeListener( + const rtl::Reference<T> & xBroadcaster, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xBroadcaster && xListener ) + xBroadcaster->removeModifyListener( xListener ); +} + +template< class Container > +void removeListenerFromAllElements( + const Container & rContainer, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + std::for_each( rContainer.begin(), rContainer.end(), + impl::removeListenerFunctor< typename Container::value_type >( xListener )); +} + +template< class T > +void removeListenerFromAllElements( + const std::vector<rtl::Reference<T>> & rContainer, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( !xListener ) + return; + for (auto const & i : rContainer) + i->removeModifyListener(xListener); +} + +template< class Container > +void removeListenerFromAllMapElements( + const Container & rContainer, + const css::uno::Reference< css::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 css::uno::Sequence< T > & rSequence, + const css::uno::Reference< css::util::XModifyListener > & xListener ) +{ + if( xListener.is()) + std::for_each( rSequence.begin(), rSequence.end(), + impl::removeListenerFunctor< T >( xListener )); +} + +} // namespace chart::ModifyListenerHelper + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |