/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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 *   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
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 */

#ifndef INCLUDED_COMPHELPER_CONTAINERMULTIPLEXER_HXX
#define INCLUDED_COMPHELPER_CONTAINERMULTIPLEXER_HXX

#include <com/sun/star/container/XContainer.hpp>
#include <cppuhelper/implbase.hxx>
#include <osl/mutex.hxx>
#include <comphelper/comphelperdllapi.h>


namespace comphelper
{


    class OContainerListenerAdapter;

    //= OContainerListener

    /** a non-UNO container listener
        <p>Useful if you have a non-refcountable class which should act as container listener.<br/>
        In this case, derive this class from OContainerListener, and create an adapter
        OContainerListenerAdapter which multiplexes the changes.</p>
    */
    class COMPHELPER_DLLPUBLIC OContainerListener
    {
        friend class OContainerListenerAdapter;
    protected:
        OContainerListenerAdapter*  m_pAdapter;
        ::osl::Mutex&               m_rMutex;

    public:
        OContainerListener(::osl::Mutex& _rMutex);
        virtual ~OContainerListener();

        virtual void _elementInserted( const css::container::ContainerEvent& _rEvent )
            throw (css::uno::RuntimeException,
                   std::exception);
        virtual void _elementRemoved( const css::container::ContainerEvent& _rEvent )
            throw (css::uno::RuntimeException,
                   std::exception);
        virtual void _elementReplaced( const css::container::ContainerEvent& _rEvent )
            throw (css::uno::RuntimeException,
                   std::exception);
        virtual void _disposing(const css::lang::EventObject& _rSource)
            throw (css::uno::RuntimeException,
                   std::exception);

    protected:
        void setAdapter(OContainerListenerAdapter* _pAdapter);
    };

    class COMPHELPER_DLLPUBLIC OContainerListenerAdapter
        : public cppu::WeakImplHelper<css::container::XContainerListener>
    {
        friend class OContainerListener;

    private:
        css::uno::Reference< css::container::XContainer >
                                m_xContainer;
        OContainerListener*     m_pListener;

        virtual ~OContainerListenerAdapter() override;

    public:
        OContainerListenerAdapter(OContainerListener* _pListener,
            const  css::uno::Reference< css::container::XContainer >& _rxContainer);

        // XEventListener
        virtual void SAL_CALL disposing( const  css::lang::EventObject& Source ) throw( css::uno::RuntimeException, std::exception) override;

        // XContainerListener
        virtual void SAL_CALL elementInserted( const css::container::ContainerEvent& Event ) throw(css::uno::RuntimeException, std::exception) override;
        virtual void SAL_CALL elementRemoved( const css::container::ContainerEvent& Event ) throw(css::uno::RuntimeException, std::exception) override;
        virtual void SAL_CALL elementReplaced( const css::container::ContainerEvent& Event ) throw(css::uno::RuntimeException, std::exception) override;

        /// dispose the object. No multiplexing anymore
        void        dispose();

    };


}   // namespace dbaui


#endif // INCLUDED_COMPHELPER_CONTAINERMULTIPLEXER_HXX

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