toolkit/test/accessibility/ChildEventHandler.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18
  19 import com.sun.star.accessibility.XAccessible;
  20 import com.sun.star.accessibility.AccessibleEventObject;
  21 import com.sun.star.uno.UnoRuntime;
  22
  23 import java.io.PrintStream;
  24
  25 class ChildEventHandler
  26     extends EventHandler
  27 {
  28     public ChildEventHandler (AccessibleEventObject aEvent, AccessibilityTreeModel aTreeModel)
  29     {
  30         super (aEvent, aTreeModel);
  31         mxOldChild = UnoRuntime.queryInterface(
  32             XAccessible.class, aEvent.OldValue);
  33         mxNewChild = UnoRuntime.queryInterface(
  34             XAccessible.class, aEvent.NewValue);
  35     }
  36
  37     @Override
  38     public void PrintOldAndNew (PrintStream out)
  39     {
  40         if (mxOldChild != null)
  41             out.println ("   removing child " + mxOldChild);
  42         if (mxNewChild != null)
  43             out.println ("   adding child " + mxNewChild);
  44     }
  45
  46     @Override
  47     public void Process ()
  48     {
  49         // Insertion and removal of children should be mutually exclusive.
  50         // But this is a test tool and should take everything into account.
  51         if (mxOldChild != null)
  52         {
  53             maTreeModel.removeNode (mxOldChild.getAccessibleContext());
  54             maTreeModel.updateNode (mxEventSource, AccessibleTreeHandler.class);
  55         }
  56
  57         if (mxNewChild != null)
  58         {
  59             maTreeModel.addChild (mxEventSource, mxNewChild);
  60         }
  61     }
  62
  63
  64     private final XAccessible mxOldChild;
  65     private final XAccessible mxNewChild;
  66 }