toolkit/test/accessibility/AccessibleTreeNode.java

   1 import java.util.Vector;
   2 import com.sun.star.lang.IndexOutOfBoundsException;
   3
   4 /**
   5     Base class for all tree nodes.
   6  */
   7 class AccessibleTreeNode
   8 {
   9     /// The parent node.  It is null for the root node.
  10     protected AccessibleTreeNode maParent;
  11
  12     /// The object to be displayed.
  13     private Object maDisplayObject;
  14
  15     public AccessibleTreeNode (Object aDisplayObject, AccessibleTreeNode aParent)
  16     {
  17         maDisplayObject = aDisplayObject;
  18         maParent = aParent;
  19     }
  20
  21     public void update ()
  22     {
  23         // Empty
  24     }
  25
  26     public AccessibleTreeNode getParent ()
  27     {
  28         return maParent;
  29     }
  30
  31     public Object getDisplayObject ()
  32     {
  33         return maDisplayObject;
  34     }
  35
  36     public int getChildCount ()
  37     {
  38         return 0;
  39     }
  40
  41     public AccessibleTreeNode getChild (int nIndex)
  42         throws IndexOutOfBoundsException
  43     {
  44         throw new IndexOutOfBoundsException();
  45     }
  46
  47     public AccessibleTreeNode getChildNoCreate (int nIndex)
  48         throws IndexOutOfBoundsException
  49     {
  50         throw new IndexOutOfBoundsException();
  51     }
  52
  53     public boolean removeChild (int nIndex)
  54         throws IndexOutOfBoundsException
  55     {
  56         throw new IndexOutOfBoundsException();
  57     }
  58
  59     public int indexOf (AccessibleTreeNode aNode)
  60     {
  61         return -1;
  62     }
  63
  64     /** Create a path to this node by first asking the parent for its path
  65         and then appending this object.
  66     */
  67     public void createPath (java.util.Vector aPath)
  68     {
  69         if (maParent != null)
  70             maParent.createPath (aPath);
  71         aPath.add (this);
  72     }
  73
  74     public Object[] createPath ()
  75     {
  76         Vector aPath = new Vector (1);
  77         createPath (aPath);
  78         return aPath.toArray();
  79     }
  80
  81     public boolean isLeaf()
  82     {
  83         return true;
  84     }
  85
  86     public String toString()
  87     {
  88         return maDisplayObject.toString();
  89     }
  90
  91     /** get names of suported actions */
  92     public String[] getActions ()
  93     {
  94         return new String[] {};
  95     }
  96
  97     /** perform action */
  98     public void performAction (int nIndex)
  99     {
 100     }
 101 }