cms/org.argeo.slc.client.ui/src/org/argeo/slc/client/ui/commands/RefreshJcrResultTreeView.java

   1 package org.argeo.slc.client.ui.commands;
   2
   3 import java.util.Iterator;
   4
   5 import org.argeo.slc.client.ui.ClientUiPlugin;
   6 import org.argeo.slc.client.ui.model.ResultParent;
   7 import org.argeo.slc.client.ui.views.JcrResultTreeView;
   8 import org.eclipse.core.commands.AbstractHandler;
   9 import org.eclipse.core.commands.ExecutionEvent;
  10 import org.eclipse.core.commands.ExecutionException;
  11 import org.eclipse.jface.resource.ImageDescriptor;
  12 import org.eclipse.jface.viewers.IStructuredSelection;
  13 import org.eclipse.ui.handlers.HandlerUtil;
  14
  15 /**
  16  * Force refresh the ResultTreeView. This command is only intended to be called
  17  * by either the toolbar menu of the view or by the popup menu. Refresh due to
  18  * data changes must be triggered by Observers
  19  */
  20 public class RefreshJcrResultTreeView extends AbstractHandler {
  21         public final static String ID = ClientUiPlugin.ID
  22                         + ".refreshJcrResultTreeView";
  23         public final static String PARAM_REFRESH_TYPE = ClientUiPlugin.ID
  24                         + ".param.refreshType";
  25         public final static String PARAM_REFRESH_TYPE_FULL = "fullRefresh";
  26         public final static ImageDescriptor DEFAULT_IMG_DESCRIPTOR = ClientUiPlugin
  27         .getImageDescriptor("icons/refresh.png");
  28         public final static String DEFAULT_LABEL = "Refresh selected";
  29
  30         public Object execute(final ExecutionEvent event) throws ExecutionException {
  31                 String refreshType = event.getParameter(PARAM_REFRESH_TYPE);
  32                 JcrResultTreeView view = (JcrResultTreeView) HandlerUtil
  33                                 .getActiveWorkbenchWindow(event).getActivePage()
  34                                 .getActivePart();
  35
  36                 // force full refresh without preserving selection from the tool bar
  37                 if (PARAM_REFRESH_TYPE_FULL.equals(refreshType))
  38                         view.refresh(null);
  39                 else {
  40                         IStructuredSelection selection = (IStructuredSelection) HandlerUtil
  41                                         .getActiveWorkbenchWindow(event).getActivePage()
  42                                         .getSelection();
  43                         @SuppressWarnings("rawtypes")
  44                         Iterator it = selection.iterator();
  45                         while (it.hasNext()) {
  46                                 Object obj = it.next();
  47                                 if (obj instanceof ResultParent) {
  48                                         view.refresh((ResultParent) obj);
  49                                 }
  50                         }
  51                 }
  52                 return null;
  53         }
  54 }