accessibility/source/extended/listboxaccessible.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_accessibility.hxx"
  33 #include <accessibility/extended/listboxaccessible.hxx>
  34 #include <svtools/svtreebx.hxx>
  35
  36 //........................................................................
  37 namespace accessibility
  38 {
  39 //........................................................................
  40
  41     //====================================================================
  42     //= ListBoxAccessibleBase
  43     //====================================================================
  44     //--------------------------------------------------------------------
  45     ListBoxAccessibleBase::ListBoxAccessibleBase( SvTreeListBox& _rWindow )
  46         :m_pWindow( &_rWindow )
  47     {
  48         m_pWindow->AddEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
  49     }
  50
  51     //--------------------------------------------------------------------
  52     ListBoxAccessibleBase::~ListBoxAccessibleBase( )
  53     {
  54         if ( m_pWindow )
  55         {
  56             // cannot call "dispose" here, as it is abstract, so the VTABLE of the derived class
  57             // is not intact anymore
  58             // so we call our "disposing" only
  59             disposing();
  60         }
  61     }
  62
  63     //--------------------------------------------------------------------
  64     IMPL_LINK( ListBoxAccessibleBase, WindowEventListener, VclSimpleEvent*, pEvent )
  65     {
  66         DBG_ASSERT( pEvent && pEvent->ISA( VclWindowEvent ), "ListBoxAccessibleBase::WindowEventListener: unexpected WindowEvent!" );
  67         if ( pEvent && pEvent->ISA( VclWindowEvent ) )
  68         {
  69             DBG_ASSERT( static_cast< VclWindowEvent* >( pEvent )->GetWindow() , "ListBoxAccessibleBase::WindowEventListener: no event window!" );
  70             DBG_ASSERT( static_cast< VclWindowEvent* >( pEvent )->GetWindow() == m_pWindow, "ListBoxAccessibleBase::WindowEventListener: where did this come from?" );
  71
  72             ProcessWindowEvent( *static_cast< VclWindowEvent* >( pEvent ) );
  73         }
  74         return 0;
  75     }
  76
  77     // -----------------------------------------------------------------------------
  78     void ListBoxAccessibleBase::disposing()
  79     {
  80         if ( m_pWindow )
  81             m_pWindow->RemoveEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
  82         m_pWindow = NULL;
  83     }
  84
  85     // -----------------------------------------------------------------------------
  86     void ListBoxAccessibleBase::ProcessWindowEvent( const VclWindowEvent& _rVclWindowEvent )
  87     {
  88         if ( isAlive() )
  89         {
  90             switch ( _rVclWindowEvent.GetId() )
  91             {
  92                 case  VCLEVENT_OBJECT_DYING :
  93                 {
  94                     if ( m_pWindow )
  95                         m_pWindow->RemoveEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
  96                     m_pWindow = NULL;
  97                     dispose();
  98                     break;
  99                 }
 100             }
 101         }
 102     }
 103
 104 //........................................................................
 105 }       // namespace accessibility
 106 //........................................................................