### Eclipse Workspace Patch 1.0
#P org.eclipse.rse.ui
Index: UI/org/eclipse/rse/internal/ui/view/team/SystemTeamViewPart.java
===================================================================
RCS file: /cvsroot/dsdp/org.eclipse.tm.rse/plugins/org.eclipse.rse.ui/UI/org/eclipse/rse/internal/ui/view/team/SystemTeamViewPart.java,v
retrieving revision 1.12
diff -u -r1.12 SystemTeamViewPart.java
--- UI/org/eclipse/rse/internal/ui/view/team/SystemTeamViewPart.java	5 Jun 2007 01:39:24 -0000	1.12
+++ UI/org/eclipse/rse/internal/ui/view/team/SystemTeamViewPart.java	10 Jul 2007 17:30:19 -0000
@@ -15,6 +15,7 @@
  * Martin Oberhuber (Wind River) - [186773] split ISystemRegistryUI from ISystemRegistry
  * David Dykstal (IBM) - [189858] Removed the remote systems project in the team view
  * David Dykstal (IBM) - [186589] move user types, user actions, and compile commands
+ * Rupen Mardirossian (IBM) - [187741] Implemented the handleDoubleClick method
  *                                API to the user actions plugin
  ********************************************************************************/
 
@@ -51,9 +52,11 @@
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.ISelectionProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeSelection;
 import org.eclipse.jface.viewers.OpenEvent;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.jface.viewers.TreePath;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.window.SameShellProvider;
@@ -392,6 +395,37 @@
 	 */
 	private void handleDoubleClick(DoubleClickEvent event) 
 	{
+		ITreeSelection s = (ITreeSelection) event.getSelection();
+		Object element = s.getFirstElement();
+		
+		if (element == null)
+			return;
+
+		ISystemViewElementAdapter adapter = (ISystemViewElementAdapter) ((IAdaptable) element).getAdapter(ISystemViewElementAdapter.class);
+		
+		if (adapter != null)
+		{
+			if (adapter.hasChildren((IAdaptable)element))
+			{
+				// Get the path for the element and use it for setting expanded state,
+				// so the proper TreeItem is expanded/collapsed
+				TreePath[] paths = s.getPathsFor(element);
+				if (paths == null || paths.length == 0 || paths[0] == null) return;
+				TreePath elementPath = paths[0];
+				if (treeViewer.getExpandedState(elementPath))
+				{
+					treeViewer.collapseSelected();
+				}
+				else
+				{
+					treeViewer.expandSelected();
+				}
+			}
+			else
+			{
+				adapter.handleDoubleClick(element);
+			}
+		}
 		/*
 		IStructuredSelection rseSSel =
 			(IStructuredSelection) event.getSelection();