org.argeo.security.ui.admin/src/org/argeo/security/ui/admin/internal/UserDragListener.java

   1 package org.argeo.security.ui.admin.internal;
   2
   3 import org.eclipse.jface.viewers.IStructuredSelection;
   4 import org.eclipse.jface.viewers.Viewer;
   5 import org.eclipse.swt.dnd.DragSourceEvent;
   6 import org.eclipse.swt.dnd.DragSourceListener;
   7 import org.osgi.service.useradmin.User;
   8
   9 public class UserDragListener implements DragSourceListener {
  10         private static final long serialVersionUID = -2074337775033781454L;
  11         private final Viewer viewer;
  12
  13         public UserDragListener(Viewer viewer) {
  14                 this.viewer = viewer;
  15         }
  16
  17         public void dragStart(DragSourceEvent event) {
  18                 // TODO implement finer checks
  19                 IStructuredSelection selection = (IStructuredSelection) viewer
  20                                 .getSelection();
  21                 if (selection.isEmpty() || selection.size() > 1)
  22                         event.doit = false;
  23                 else
  24                         event.doit = true;
  25         }
  26
  27         public void dragSetData(DragSourceEvent event) {
  28                 // TODO Support multiple selection
  29                 Object obj = ((IStructuredSelection) viewer.getSelection())
  30                                 .getFirstElement();
  31                 if (obj != null) {
  32                         User user = (User) obj;
  33                         event.data = user.getName();
  34                 }
  35         }
  36
  37         public void dragFinished(DragSourceEvent event) {
  38         }
  39 }