winaccessibility/source/service/AccTableEventListener.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 <com/sun/star/accessibility/XAccessible.hpp>
  21 #include <com/sun/star/accessibility/AccessibleStateType.hpp>
  22 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
  23 #include <com/sun/star/accessibility/AccessibleRole.hpp>
  24 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
  25 #include <com/sun/star/accessibility/AccessibleTableModelChange.hpp>
  26
  27 #include <vcl/svapp.hxx>
  28
  29 #include <AccTableEventListener.hxx>
  30 #include <AccObjectManagerAgent.hxx>
  31 #include <unomsaaevent.hxx>
  32
  33 using namespace com::sun::star::uno;
  34 using namespace com::sun::star::accessibility;
  35
  36 AccTableEventListener::AccTableEventListener(css::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent)
  37         :AccDescendantManagerEventListener(pAcc, Agent)
  38 {}
  39 AccTableEventListener::~AccTableEventListener()
  40 {
  41 }
  42
  43 /**
  44  *  Uno's event notifier when event is captured
  45  *  @param AccessibleEventObject    the event object which contains information about event
  46  */
  47 void  AccTableEventListener::notifyEvent( const css::accessibility::AccessibleEventObject& aEvent )
  48 {
  49     SolarMutexGuard g;
  50
  51     switch (aEvent.EventId)
  52     {
  53     case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:
  54         HandleActiveDescendantChangedEvent(aEvent.OldValue, aEvent.NewValue);
  55         break;
  56
  57     case AccessibleEventId::TABLE_CAPTION_CHANGED:
  58         {
  59             pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_CAPTION_CHANGED, m_xAccessible.get());
  60             break;
  61         }
  62     case AccessibleEventId::TABLE_COLUMN_DESCRIPTION_CHANGED:
  63         {
  64             pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_COLUMN_DESCRIPTION_CHANGED, m_xAccessible.get());
  65             break;
  66         }
  67     case AccessibleEventId::TABLE_COLUMN_HEADER_CHANGED:
  68         {
  69             pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_COLUMN_HEADER_CHANGED, m_xAccessible.get());
  70             break;
  71         }
  72     case AccessibleEventId::TABLE_ROW_HEADER_CHANGED:
  73         {
  74             pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_ROW_HEADER_CHANGED, m_xAccessible.get());
  75             break;
  76         }
  77     case AccessibleEventId::TABLE_MODEL_CHANGED:
  78         {
  79             HandleTableModelChangeEvent(aEvent.NewValue);
  80             break;
  81         }
  82     case AccessibleEventId::TABLE_SUMMARY_CHANGED:
  83         {
  84             pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_SUMMARY_CHANGED, m_xAccessible.get());
  85             break;
  86         }
  87     case AccessibleEventId::TABLE_ROW_DESCRIPTION_CHANGED:
  88         {
  89             pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_ROW_DESCRIPTION_CHANGED, m_xAccessible.get());
  90             break;
  91         }
  92     default:
  93         AccDescendantManagerEventListener::notifyEvent(aEvent);
  94         break;
  95     }
  96 }
  97
  98 /**
  99  *  handle the ACTIVE_DESCENDANT_CHANGED event
 100  *  @param  oldValue    the child to lose active
 101  *  @param  newValue    the child to get active
 102  */
 103 void AccTableEventListener::HandleActiveDescendantChangedEvent(Any oldValue, Any newValue)
 104 {
 105     Reference< XAccessible > xChild;
 106     if(newValue >>= xChild )
 107     {
 108         if(xChild.is())
 109         {
 110             XAccessible* pAcc = xChild.get();
 111             pAgent->InsertAccObj(pAcc, m_xAccessible.get());
 112             pAgent->NotifyAccEvent(UnoMSAAEvent::ACTIVE_DESCENDANT_CHANGED, pAcc);
 113         }
 114     }
 115     else if (oldValue >>= xChild)
 116     {
 117         //delete an existing child
 118         if(xChild.is())
 119         {
 120             XAccessible* pAcc = xChild.get();
 121             pAgent->DeleteAccObj( pAcc );
 122         }
 123     }
 124
 125 }
 126 void AccTableEventListener::HandleTableModelChangeEvent(Any newValue)
 127 {
 128     AccessibleTableModelChange aModelChange;
 129     if (newValue >>= aModelChange)
 130     {
 131         if (m_xAccessible.is())
 132         {
 133             //delete all oldValue's existing children
 134             pAgent->DeleteChildrenAccObj(m_xAccessible.get());
 135             //add all oldValue's existing children
 136             pAgent->InsertChildrenAccObj(m_xAccessible.get());
 137         }
 138         pAgent->NotifyAccEvent(UnoMSAAEvent::TABLE_MODEL_CHANGED, m_xAccessible.get());
 139     }
 140 }
 141
 142 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */