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