include/comphelper/containermultiplexer.hxx

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   9  * This file incorporates work covered by the following license notice:
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  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_COMPHELPER_CONTAINERMULTIPLEXER_HXX
  21 #define INCLUDED_COMPHELPER_CONTAINERMULTIPLEXER_HXX
  22
  23 #include <com/sun/star/container/XContainer.hpp>
  24 #include <cppuhelper/implbase1.hxx>
  25 #include <osl/mutex.hxx>
  26 #include <comphelper/comphelperdllapi.h>
  27
  28 //.........................................................................
  29 namespace comphelper
  30 {
  31 //.........................................................................
  32
  33     class OContainerListenerAdapter;
  34     //=====================================================================
  35     //= OContainerListener
  36     //=====================================================================
  37     /** a non-UNO container listener
  38         <p>Useful if you have a non-refcountable class which should act as container listener.<br/>
  39         In this case, derive this class from OContainerListener, and create an adapter
  40         OContainerListenerAdapter which multiplexes the changes.</p>
  41     */
  42     class COMPHELPER_DLLPUBLIC OContainerListener
  43     {
  44         friend class OContainerListenerAdapter;
  45     protected:
  46         OContainerListenerAdapter*  m_pAdapter;
  47         ::osl::Mutex&               m_rMutex;
  48
  49     public:
  50         OContainerListener(::osl::Mutex& _rMutex);
  51         virtual ~OContainerListener();
  52
  53         virtual void _elementInserted( const ::com::sun::star::container::ContainerEvent& _rEvent ) throw(::com::sun::star::uno::RuntimeException);
  54         virtual void _elementRemoved( const ::com::sun::star::container::ContainerEvent& _Event ) throw(::com::sun::star::uno::RuntimeException);
  55         virtual void _elementReplaced( const ::com::sun::star::container::ContainerEvent& _rEvent ) throw(::com::sun::star::uno::RuntimeException);
  56         virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource) throw( ::com::sun::star::uno::RuntimeException);
  57
  58     protected:
  59         void setAdapter(OContainerListenerAdapter* _pAdapter);
  60     };
  61
  62     //=====================================================================
  63     //= OContainerListenerAdapter
  64     //=====================================================================
  65     class COMPHELPER_DLLPUBLIC OContainerListenerAdapter
  66             :public cppu::WeakImplHelper1< ::com::sun::star::container::XContainerListener >
  67     {
  68         friend class OContainerListener;
  69
  70     protected:
  71         ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >
  72                                 m_xContainer;
  73         OContainerListener*     m_pListener;
  74         sal_Int32               m_nLockCount;
  75
  76         virtual ~OContainerListenerAdapter();
  77
  78     public:
  79         OContainerListenerAdapter(OContainerListener* _pListener,
  80             const  ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >& _rxContainer);
  81
  82         // XEventListener
  83         virtual void SAL_CALL disposing( const  ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException);
  84
  85         // XContainerListener
  86         virtual void SAL_CALL elementInserted( const ::com::sun::star::container::ContainerEvent& Event ) throw(::com::sun::star::uno::RuntimeException);
  87         virtual void SAL_CALL elementRemoved( const ::com::sun::star::container::ContainerEvent& Event ) throw(::com::sun::star::uno::RuntimeException);
  88         virtual void SAL_CALL elementReplaced( const ::com::sun::star::container::ContainerEvent& Event ) throw(::com::sun::star::uno::RuntimeException);
  89
  90         // locking the multiplexer
  91         sal_Int32   locked() const { return m_nLockCount; }
  92
  93         /// dispose the object. No multiplexing anymore
  94         void        dispose();
  95
  96         const ::com::sun::star::uno::Reference< ::com::sun::star::container::XContainer >&
  97                     getContainer() const { return m_xContainer; }
  98     };
  99
 100 //.........................................................................
 101 }   // namespace dbaui
 102 //.........................................................................
 103
 104 #endif // INCLUDED_COMPHELPER_CONTAINERMULTIPLEXER_HXX
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */