accessibility/source/extended/accessibletabbarbase.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/accessibletabbarbase.hxx"
  21 #ifndef ACCESSIBILITY_EXT_ACCESSIBLETABBARPAGELIST
  22 #include "accessibility/extended/accessibletabbarpagelist.hxx"
  23 #endif
  24 #include <toolkit/helper/externallock.hxx>
  25 #include <svtools/tabbar.hxx>
  26
  27
  28 namespace accessibility
  29 {
  30
  31
  32 AccessibleTabBarBase::AccessibleTabBarBase( TabBar* pTabBar ) :
  33     AccessibleExtendedComponentHelper_BASE( new VCLExternalSolarLock() ),
  34     m_pTabBar( 0 )
  35 {
  36     m_pExternalLock = static_cast< VCLExternalSolarLock* >( getExternalLock() );
  37     SetTabBarPointer( pTabBar );
  38 }
  39
  40 AccessibleTabBarBase::~AccessibleTabBarBase()
  41 {
  42     ClearTabBarPointer();
  43     DELETEZ( m_pExternalLock );
  44 }
  45
  46 IMPL_LINK( AccessibleTabBarBase, WindowEventListener, VclSimpleEvent*, pEvent )
  47 {
  48     VclWindowEvent* pWinEvent = dynamic_cast< VclWindowEvent* >( pEvent );
  49     OSL_ENSURE( pWinEvent, "AccessibleTabBarBase::WindowEventListener - unknown window event" );
  50     if( pWinEvent )
  51     {
  52         vcl::Window* pEventWindow = pWinEvent->GetWindow();
  53         OSL_ENSURE( pEventWindow, "AccessibleTabBarBase::WindowEventListener: no window!" );
  54
  55         if( ( pWinEvent->GetId() == VCLEVENT_TABBAR_PAGEREMOVED ) &&
  56             ( (sal_uInt16)reinterpret_cast<sal_IntPtr>(pWinEvent->GetData()) == TabBar::PAGE_NOT_FOUND ) &&
  57             ( dynamic_cast< AccessibleTabBarPageList *> (this) != NULL ) )
  58         {
  59             return 0;
  60         }
  61
  62         if ( !pEventWindow->IsAccessibilityEventsSuppressed() || (pWinEvent->GetId() == VCLEVENT_OBJECT_DYING) )
  63             ProcessWindowEvent( *pWinEvent );
  64     }
  65     return 0;
  66 }
  67
  68 void AccessibleTabBarBase::ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent )
  69 {
  70     if( rVclWindowEvent.GetId() == VCLEVENT_OBJECT_DYING )
  71         ClearTabBarPointer();
  72 }
  73
  74 // XComponent
  75
  76 void AccessibleTabBarBase::disposing()
  77 {
  78     AccessibleExtendedComponentHelper_BASE::disposing();
  79     ClearTabBarPointer();
  80 }
  81
  82 // private
  83
  84 void AccessibleTabBarBase::SetTabBarPointer( TabBar* pTabBar )
  85 {
  86     OSL_ENSURE( !m_pTabBar, "AccessibleTabBarBase::SetTabBarPointer - multiple call" );
  87     m_pTabBar = pTabBar;
  88     if( m_pTabBar )
  89         m_pTabBar->AddEventListener( LINK( this, AccessibleTabBarBase, WindowEventListener ) );
  90 }
  91
  92 void AccessibleTabBarBase::ClearTabBarPointer()
  93 {
  94     if( m_pTabBar )
  95     {
  96         m_pTabBar->RemoveEventListener( LINK( this, AccessibleTabBarBase, WindowEventListener ) );
  97         m_pTabBar = 0;
  98     }
  99 }
 100
 101
 102 }   // namespace accessibility
 103
 104
 105 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */