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(com::sun::star::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 ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
  48 throw (::com::sun::star::uno::RuntimeException)
  49 {
  50     SolarMutexGuard g;
  51
  52     switch (aEvent.EventId)
  53     {
  54     case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:
  55         HandleActiveDescendantChangedEvent(aEvent.OldValue, aEvent.NewValue);
  56         break;
  57
  58     case AccessibleEventId::TABLE_CAPTION_CHANGED:
  59         {
  60
  61             pAgent->NotifyAccEvent(UM_EVENT_TABLE_CAPTION_CHANGED, m_xAccessible.get());
  62             break;
  63         }
  64     case AccessibleEventId::TABLE_COLUMN_DESCRIPTION_CHANGED:
  65         {
  66
  67             pAgent->NotifyAccEvent(UM_EVENT_TABLE_COLUMN_DESCRIPTION_CHANGED, m_xAccessible.get());
  68             break;
  69         }
  70     case AccessibleEventId::TABLE_COLUMN_HEADER_CHANGED:
  71         {
  72
  73             pAgent->NotifyAccEvent(UM_EVENT_TABLE_COLUMN_HEADER_CHANGED, m_xAccessible.get());
  74             break;
  75         }
  76     case AccessibleEventId::TABLE_ROW_HEADER_CHANGED:
  77         {
  78
  79             pAgent->NotifyAccEvent(UM_EVENT_TABLE_ROW_HEADER_CHANGED, m_xAccessible.get());
  80             break;
  81         }
  82     case AccessibleEventId::TABLE_MODEL_CHANGED:
  83         {
  84
  85             HandleTableModelChangeEvent(aEvent.NewValue);
  86             break;
  87         }
  88     case AccessibleEventId::TABLE_SUMMARY_CHANGED:
  89         {
  90
  91             pAgent->NotifyAccEvent(UM_EVENT_TABLE_SUMMARY_CHANGED, m_xAccessible.get());
  92             break;
  93         }
  94     case AccessibleEventId::TABLE_ROW_DESCRIPTION_CHANGED:
  95         {
  96
  97             pAgent->NotifyAccEvent(UM_EVENT_TABLE_ROW_DESCRIPTION_CHANGED, m_xAccessible.get());
  98             break;
  99         }
 100     default:
 101         AccDescendantManagerEventListener::notifyEvent(aEvent);
 102         break;
 103     }
 104 }
 105
 106 /**
 107  *  handle the ACTIVE_DESCENDANT_CHANGED event
 108  *  @param  oldValue    the child to lose active
 109  *  @param  newValue    the child to get active
 110  */
 111 void AccTableEventListener::HandleActiveDescendantChangedEvent(Any oldValue, Any newValue)
 112 {
 113     Reference< XAccessible > xChild;
 114     if(newValue >>= xChild )
 115     {
 116         if(xChild.is())
 117         {
 118             XAccessible* pAcc = xChild.get();
 119             pAgent->InsertAccObj(pAcc, m_xAccessible.get());
 120             pAgent->NotifyAccEvent(UM_EVENT_ACTIVE_DESCENDANT_CHANGED, pAcc);
 121         }
 122     }
 123     else if (oldValue >>= xChild)
 124     {
 125         //delete an existing child
 126         if(xChild.is())
 127         {
 128             XAccessible* pAcc = xChild.get();
 129             pAgent->DeleteAccObj( pAcc );
 130         }
 131     }
 132
 133 }
 134 void AccTableEventListener::HandleTableModelChangeEvent(Any newValue)
 135 {
 136     AccessibleTableModelChange aModelChange;
 137     if (newValue >>= aModelChange)
 138     {
 139         if (m_xAccessible.is())
 140         {
 141             //delete all oldValue's existing children
 142             pAgent->DeleteChildrenAccObj(m_xAccessible.get());
 143             //add all oldValue's existing children
 144             pAgent->InsertChildrenAccObj(m_xAccessible.get());
 145         }
 146         pAgent->NotifyAccEvent(UM_EVENT_TABLE_MODEL_CHANGED, m_xAccessible.get());
 147     }
 148 }
 149
 150 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */