toolkit/test/accessibility/AccessibleRelationHandler.java

   1 import com.sun.star.uno.UnoRuntime;
   2 import com.sun.star.accessibility.XAccessible;
   3 import com.sun.star.accessibility.XAccessibleContext;
   4 import com.sun.star.accessibility.AccessibleRelation;
   5 import com.sun.star.accessibility.XAccessibleRelationSet;
   6 import com.sun.star.accessibility.AccessibleRelationType;
   7 import com.sun.star.lang.IndexOutOfBoundsException;
   8
   9 import tools.NameProvider;
  10
  11 class AccessibleRelationHandler
  12     extends NodeHandler
  13 {
  14     public NodeHandler createHandler( XAccessibleContext xContext )
  15     {
  16         AccessibleRelationHandler aHandler = null;
  17         if (xContext != null)
  18         {
  19             XAccessibleRelationSet xRelation = xContext.getAccessibleRelationSet();
  20             if (xRelation != null)
  21                 aHandler = new AccessibleRelationHandler(xContext);
  22         }
  23         return aHandler;
  24     }
  25
  26     public AccessibleRelationHandler()
  27     {
  28     }
  29
  30     public AccessibleRelationHandler( XAccessibleContext xContext )
  31     {
  32         XAccessibleRelationSet xRelation = xContext.getAccessibleRelationSet();
  33         if (xRelation != null)
  34             maChildList.setSize( 1 );
  35     }
  36
  37     public AccessibleTreeNode createChild( AccessibleTreeNode aParent,
  38                                            int nIndex )
  39     {
  40         XAccessibleRelationSet xRelation = null;
  41         AccessibleTreeNode aChild = null;
  42
  43         if( aParent instanceof AccTreeNode )
  44         {
  45             xRelation =
  46                 ((AccTreeNode)aParent).getContext().getAccessibleRelationSet();
  47         }
  48         if( xRelation == null )
  49             return aChild;
  50
  51
  52         VectorNode aVNode = new VectorNode( "RelationSet", aParent);
  53         int nCount = xRelation.getRelationCount();
  54         try
  55         {
  56             for( int i = 0; i < nCount; i++ )
  57             {
  58                 AccessibleRelation aRelation = xRelation.getRelation( i );
  59
  60                 StringBuffer aBuffer = new StringBuffer();
  61                 aBuffer.append (NameProvider.getRelationName (aRelation.RelationType));
  62                 aBuffer.append( ": " );
  63
  64                 for( int j = 0; j < aRelation.TargetSet.length; j++ )
  65                 {
  66                     Object aTarget = aRelation.TargetSet[j];
  67                     XAccessible xAccTarget =
  68                         (XAccessible)UnoRuntime.queryInterface(
  69                              XAccessible.class, aTarget );
  70                     if( xAccTarget == null )
  71                     {
  72                         aBuffer.append( aTarget.toString() );
  73                     }
  74                     else
  75                     {
  76                         aBuffer.append( xAccTarget.getAccessibleContext().
  77                                          getAccessibleName() );
  78                     }
  79                     aBuffer.append( ", " );
  80                 }
  81                 aBuffer.delete( aBuffer.length() - 2, aBuffer.length() );
  82
  83                 aVNode.addChild( new StringNode( aBuffer.toString(),
  84                                                  aParent ) );
  85             }
  86
  87             aChild = aVNode;
  88         }
  89         catch( IndexOutOfBoundsException e )
  90         {
  91             aChild = new StringNode( "IndexOutOfBounds", aParent );
  92         }
  93
  94         return aChild;
  95     }
  96 }