plugins/org.argeo.slc.client.ui/src/main/java/org/argeo/slc/client/ui/commands/RefreshJcrResultTreeView.java

   1 package org.argeo.slc.client.ui.commands;
   2
   3 /*
   4  * Copyright (C) 2007-2012 Mathieu Baudier
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *         http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 import java.util.Iterator;
  20
  21 import org.argeo.slc.client.ui.ClientUiPlugin;
  22 import org.argeo.slc.client.ui.model.ResultParent;
  23 import org.argeo.slc.client.ui.views.JcrResultTreeView;
  24 import org.eclipse.core.commands.AbstractHandler;
  25 import org.eclipse.core.commands.ExecutionEvent;
  26 import org.eclipse.core.commands.ExecutionException;
  27 import org.eclipse.jface.viewers.IStructuredSelection;
  28 import org.eclipse.ui.handlers.HandlerUtil;
  29
  30 /**
  31  * Force refresh the ResultTreeView. This command is only intended to be called
  32  * by either the toolbar menu of the view or by the popup menu. Refresh due to
  33  * data changes must be triggered by Observers
  34  */
  35 public class RefreshJcrResultTreeView extends AbstractHandler {
  36         public final static String ID = ClientUiPlugin.ID
  37                         + ".refreshJcrResultTreeView";
  38         public final static String PARAM_REFRESH_TYPE = ClientUiPlugin.ID
  39                         + ".param.refreshType";
  40         public final static String PARAM_REFRESH_TYPE_FULL = "fullRefresh";
  41
  42         public Object execute(final ExecutionEvent event) throws ExecutionException {
  43                 String refreshType = event.getParameter(PARAM_REFRESH_TYPE);
  44                 JcrResultTreeView view = (JcrResultTreeView) HandlerUtil
  45                                 .getActiveWorkbenchWindow(event).getActivePage()
  46                                 .getActivePart();
  47
  48                 // force full refresh without preserving selection from the tool bar
  49                 if (PARAM_REFRESH_TYPE_FULL.equals(refreshType))
  50                         view.refresh(null);
  51                 else {
  52                         IStructuredSelection selection = (IStructuredSelection) HandlerUtil
  53                                         .getActiveWorkbenchWindow(event).getActivePage()
  54                                         .getSelection();
  55                         @SuppressWarnings("rawtypes")
  56                         Iterator it = selection.iterator();
  57                         while (it.hasNext()) {
  58                                 Object obj = it.next();
  59                                 if (obj instanceof ResultParent) {
  60                                         view.refresh((ResultParent) obj);
  61                                 }
  62                         }
  63                 }
  64                 return null;
  65         }
  66 }