toolkit/test/accessibility/AccessibleRelationHandler.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.uno.UnoRuntime;
  20 import com.sun.star.accessibility.XAccessible;
  21 import com.sun.star.accessibility.XAccessibleContext;
  22 import com.sun.star.accessibility.AccessibleRelation;
  23 import com.sun.star.accessibility.XAccessibleRelationSet;
  24 import com.sun.star.lang.IndexOutOfBoundsException;
  25
  26 import tools.NameProvider;
  27
  28 class AccessibleRelationHandler
  29     extends NodeHandler
  30 {
  31     @Override
  32     public NodeHandler createHandler( XAccessibleContext xContext )
  33     {
  34         AccessibleRelationHandler aHandler = null;
  35         if (xContext != null)
  36         {
  37             XAccessibleRelationSet xRelation = xContext.getAccessibleRelationSet();
  38             if (xRelation != null)
  39                 aHandler = new AccessibleRelationHandler(xContext);
  40         }
  41         return aHandler;
  42     }
  43
  44     public AccessibleRelationHandler()
  45     {
  46     }
  47
  48     private AccessibleRelationHandler( XAccessibleContext xContext )
  49     {
  50         XAccessibleRelationSet xRelation = xContext.getAccessibleRelationSet();
  51         if (xRelation != null)
  52             maChildList.setSize( 1 );
  53     }
  54
  55     @Override
  56     public AccessibleTreeNode createChild( AccessibleTreeNode aParent,
  57                                            int nIndex )
  58     {
  59         XAccessibleRelationSet xRelation = null;
  60         AccessibleTreeNode aChild = null;
  61
  62         if( aParent instanceof AccTreeNode )
  63         {
  64             xRelation =
  65                 ((AccTreeNode)aParent).getContext().getAccessibleRelationSet();
  66         }
  67         if( xRelation == null )
  68             return aChild;
  69
  70
  71         VectorNode aVNode = new VectorNode( "RelationSet", aParent);
  72         int nCount = xRelation.getRelationCount();
  73         try
  74         {
  75             for( int i = 0; i < nCount; i++ )
  76             {
  77                 AccessibleRelation aRelation = xRelation.getRelation( i );
  78
  79                 StringBuffer aBuffer = new StringBuffer();
  80                 aBuffer.append (NameProvider.getRelationName (aRelation.RelationType));
  81                 aBuffer.append( ": " );
  82
  83                 for( int j = 0; j < aRelation.TargetSet.length; j++ )
  84                 {
  85                     Object aTarget = aRelation.TargetSet[j];
  86                     XAccessible xAccTarget =
  87                         UnoRuntime.queryInterface(
  88                          XAccessible.class, aTarget );
  89                     if( xAccTarget == null )
  90                     {
  91                         aBuffer.append( aTarget.toString() );
  92                     }
  93                     else
  94                     {
  95                         aBuffer.append( xAccTarget.getAccessibleContext().
  96                                          getAccessibleName() );
  97                     }
  98                     aBuffer.append( ", " );
  99                 }
 100                 aBuffer.delete( aBuffer.length() - 2, aBuffer.length() );
 101
 102                 aVNode.addChild( new StringNode( aBuffer.toString(),
 103                                                  aParent ) );
 104             }
 105
 106             aChild = aVNode;
 107         }
 108         catch( IndexOutOfBoundsException e )
 109         {
 110             aChild = new StringNode( "IndexOutOfBounds", aParent );
 111         }
 112
 113         return aChild;
 114     }
 115 }