Bug 189847 [DND] Combo/Text on Linux does not fire Drop event.
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java
item.setText ("Clear");
	item.addSelectionListener(new SelectionAdapter() {
		public void widgetSelected(SelectionEvent e) {
			dropConsole.setText("");
		}
	});
	item = new MenuItem (menu, SWT.CHECK);
	item.setText ("Show Event detail");
	item.addSelectionListener(new SelectionAdapter() {
		public void widgetSelected(SelectionEvent e) {
			MenuItem item = (MenuItem)e.widget;
			dropEventDetail = item.getSelection();
		}
	});
	dropConsole.setMenu(menu);
	
	if (dragEnabled) createDragSource();
	if (dropEnabled) createDropTarget();
	
	int height = 200;
	FormData data = new FormData();
	data.top = new FormAttachment(0, 10);
	data.left = new FormAttachment(0, 10);
	dragLabel.setLayoutData(data);
	
	data = new FormData();
	data.top = new FormAttachment(dragLabel, 10);
	data.left = new FormAttachment(0, 10);
	data.right = new FormAttachment(50, -10);
	data.height = height;