accessibility/source/extended/listboxaccessible.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  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 #include <accessibility/extended/listboxaccessible.hxx>
  21 #include <svtools/treelistbox.hxx>
  22
  23 //........................................................................
  24 namespace accessibility
  25 {
  26 //........................................................................
  27
  28     //====================================================================
  29     //= ListBoxAccessibleBase
  30     //====================================================================
  31     //--------------------------------------------------------------------
  32     ListBoxAccessibleBase::ListBoxAccessibleBase( SvTreeListBox& _rWindow )
  33         :m_pWindow( &_rWindow )
  34     {
  35         m_pWindow->AddEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
  36     }
  37
  38     //--------------------------------------------------------------------
  39     ListBoxAccessibleBase::~ListBoxAccessibleBase( )
  40     {
  41         if ( m_pWindow )
  42         {
  43             // cannot call "dispose" here, as it is abstract, so the VTABLE of the derived class
  44             // is not intact anymore
  45             // so we call our "disposing" only
  46             disposing();
  47         }
  48     }
  49
  50     //--------------------------------------------------------------------
  51     IMPL_LINK( ListBoxAccessibleBase, WindowEventListener, VclSimpleEvent*, pEvent )
  52     {
  53         OSL_ENSURE( pEvent && pEvent->ISA( VclWindowEvent ), "ListBoxAccessibleBase::WindowEventListener: unexpected WindowEvent!" );
  54         if ( pEvent && pEvent->ISA( VclWindowEvent ) )
  55         {
  56             OSL_ENSURE( static_cast< VclWindowEvent* >( pEvent )->GetWindow() , "ListBoxAccessibleBase::WindowEventListener: no event window!" );
  57             OSL_ENSURE( static_cast< VclWindowEvent* >( pEvent )->GetWindow() == m_pWindow, "ListBoxAccessibleBase::WindowEventListener: where did this come from?" );
  58
  59             ProcessWindowEvent( *static_cast< VclWindowEvent* >( pEvent ) );
  60         }
  61         return 0;
  62     }
  63
  64     // -----------------------------------------------------------------------------
  65     void ListBoxAccessibleBase::disposing()
  66     {
  67         if ( m_pWindow )
  68             m_pWindow->RemoveEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
  69         m_pWindow = NULL;
  70     }
  71
  72     // -----------------------------------------------------------------------------
  73     void ListBoxAccessibleBase::ProcessWindowEvent( const VclWindowEvent& _rVclWindowEvent )
  74     {
  75         if ( isAlive() )
  76         {
  77             switch ( _rVclWindowEvent.GetId() )
  78             {
  79                 case  VCLEVENT_OBJECT_DYING :
  80                 {
  81                     if ( m_pWindow )
  82                         m_pWindow->RemoveEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
  83                     m_pWindow = NULL;
  84                     dispose();
  85                     break;
  86                 }
  87             }
  88         }
  89     }
  90
  91 //........................................................................
  92 }   // namespace accessibility
  93 //........................................................................
  94
  95 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */