[news.eclipse.platform.swt] Problem to give back focus to the main shell

[hortiz@xxxxxxxxxxxxxx (hortiz)]

Hi,

I have a problem to give back the focus to my main shell after triggering 
the creation of a new shell.

The snippet below illustrates the problem: when clicking on F1, a new 
shell is opened, but I can't manage to force the focus back onto the main 
shell so that F1 creates yet another shell (other than clicking on the 
main shell before).

How can I do this ?
Thanks,
Helene

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

public class SetFocusProblem {

	private static Shell shell;
	private static int shellNumbers = 0;
	
   /**
    * @param args
    */
   public static void main(String[] args) {

       Display display = new Display();
       shell = new Shell (display);
       shell.setLayout(new GridLayout());
       shell.open();
       
       shell.addKeyListener(new KeyAdapter() {
			public void keyPressed(KeyEvent event) {
				if (event.keyCode == SWT.F1) {
					System.out.println("Opening new shell");
					openNewShell();
					shell.setFocus(); // does not work ?
				}
			}
       });
       
       while (!shell.isDisposed ()) {
           if (!display.readAndDispatch()) {
               display.sleep();
           }
       }
       display.dispose ();
   }
   
   protected static void openNewShell() {
   	Shell newShell = new Shell(shell, SWT.ON_TOP);
   	newShell.setLayout(new GridLayout());
   	Label label = new Label(newShell, SWT.NONE);
   	label.setText("new shell " + shellNumbers++);
   	label.setLayoutData(new GridData());
   	newShell.setSize(100, 100);
   	newShell.open();
   }
}