commands/Refresh.java

   1 package org.argeo.cms.ui.workbench.internal.jcr.commands;
   2
   3 import java.util.Iterator;
   4
   5 import org.argeo.cms.ui.jcr.JcrBrowserUtils;
   6 import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
   7 import org.argeo.cms.ui.workbench.jcr.JcrBrowserView;
   8 import org.argeo.eclipse.ui.TreeParent;
   9 import org.eclipse.core.commands.AbstractHandler;
  10 import org.eclipse.core.commands.ExecutionEvent;
  11 import org.eclipse.core.commands.ExecutionException;
  12 import org.eclipse.jface.viewers.ISelection;
  13 import org.eclipse.jface.viewers.IStructuredSelection;
  14
  15 /**
  16  * Force the selected objects of the active view to be refreshed doing the
  17  * following:
  18  * <ol>
  19  * <li>The model objects are recomputed</li>
  20  * <li>the view is refreshed</li>
  21  * </ol>
  22  */
  23 public class Refresh extends AbstractHandler {
  24
  25         public final static String ID = WorkbenchUiPlugin.PLUGIN_ID + ".refresh";
  26
  27         public Object execute(ExecutionEvent event) throws ExecutionException {
  28
  29                 JcrBrowserView view = (JcrBrowserView) WorkbenchUiPlugin.getDefault()
  30                                 .getWorkbench().getActiveWorkbenchWindow().getActivePage()
  31                                 .getActivePart();//
  32
  33                 ISelection selection = WorkbenchUiPlugin.getDefault().getWorkbench()
  34                                 .getActiveWorkbenchWindow().getActivePage().getSelection();
  35
  36                 if (selection != null && selection instanceof IStructuredSelection
  37                                 && !selection.isEmpty()) {
  38                         Iterator<?> it = ((IStructuredSelection) selection).iterator();
  39                         while (it.hasNext()) {
  40                                 Object obj = it.next();
  41                                 if (obj instanceof TreeParent) {
  42                                         TreeParent tp = (TreeParent) obj;
  43                                         JcrBrowserUtils.forceRefreshIfNeeded(tp);
  44                                         view.refresh(obj);
  45                                 }
  46                         }
  47                 } else if (view instanceof JcrBrowserView)
  48                         ((JcrBrowserView) view).refresh(null); // force full refresh
  49
  50                 return null;
  51         }
  52 }