toolkit/test/accessibility/ChildEventHandler.java

   1 import com.sun.star.accessibility.XAccessible;
   2 import com.sun.star.accessibility.AccessibleEventObject;
   3 import com.sun.star.uno.UnoRuntime;
   4
   5 import java.io.PrintStream;
   6
   7 class ChildEventHandler
   8     extends EventHandler
   9 {
  10     public ChildEventHandler (AccessibleEventObject aEvent, AccessibilityTreeModel aTreeModel)
  11     {
  12         super (aEvent, aTreeModel);
  13         mxOldChild = (XAccessible)UnoRuntime.queryInterface(
  14             XAccessible.class, aEvent.OldValue);
  15         mxNewChild = (XAccessible)UnoRuntime.queryInterface(
  16             XAccessible.class, aEvent.NewValue);
  17     }
  18
  19     public void PrintOldAndNew (PrintStream out)
  20     {
  21         if (mxOldChild != null)
  22             out.println ("   removing child " + mxOldChild);
  23         if (mxNewChild != null)
  24             out.println ("   adding child " + mxNewChild);
  25     }
  26
  27     public void Process ()
  28     {
  29         // Insertion and removal of children should be mutually exclusive.
  30         // But this is a test tool and should take everything into account.
  31         if (mxOldChild != null)
  32         {
  33             maTreeModel.removeNode (mxOldChild.getAccessibleContext());
  34             maTreeModel.updateNode (mxEventSource, AccessibleTreeHandler.class);
  35         }
  36
  37         if (mxNewChild != null)
  38         {
  39             maTreeModel.addChild (mxEventSource, mxNewChild);
  40         }
  41     }
  42
  43
  44     private XAccessible mxOldChild;
  45     private XAccessible mxNewChild;
  46 }