Merge tag 'v2.3.20' into testing

[gpl/argeo-jcr.git] / swt / org.argeo.tool.devops.e4 / src / org / argeo / cms / e4 / users / providers / UserDragListener.java

diff --git a/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/e4/users/providers/UserDragListener.java b/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/e4/users/providers/UserDragListener.java
new file mode 100644 (file)
index 0000000..56a2624
--- /dev/null
+++ b/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/e4/users/providers/UserDragListener.java
@@ -0,0 +1,40 @@
+package org.argeo.cms.e4.users.providers;
+
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.swt.dnd.DragSourceEvent;
+import org.eclipse.swt.dnd.DragSourceListener;
+import org.osgi.service.useradmin.User;
+
+/** Default drag listener to modify group and users via the UI */
+public class UserDragListener implements DragSourceListener {
+       private static final long serialVersionUID = -2074337775033781454L;
+       private final Viewer viewer;
+
+       public UserDragListener(Viewer viewer) {
+               this.viewer = viewer;
+       }
+
+       public void dragStart(DragSourceEvent event) {
+               // TODO implement finer checks
+               IStructuredSelection selection = (IStructuredSelection) viewer
+                               .getSelection();
+               if (selection.isEmpty() || selection.size() > 1)
+                       event.doit = false;
+               else
+                       event.doit = true;
+       }
+
+       public void dragSetData(DragSourceEvent event) {
+               // TODO Support multiple selection
+               Object obj = ((IStructuredSelection) viewer.getSelection())
+                               .getFirstElement();
+               if (obj != null) {
+                       User user = (User) obj;
+                       event.data = user.getName();
+               }
+       }
+
+       public void dragFinished(DragSourceEvent event) {
+       }
+}