RefreshJcrResultTreeView.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.slc.client.ui.commands;
  17
  18 /*
  19  * Copyright (C) 2007-2012 Mathieu Baudier
  20  *
  21  * Licensed under the Apache License, Version 2.0 (the "License");
  22  * you may not use this file except in compliance with the License.
  23  * You may obtain a copy of the License at
  24  *
  25  *         http://www.apache.org/licenses/LICENSE-2.0
  26  *
  27  * Unless required by applicable law or agreed to in writing, software
  28  * distributed under the License is distributed on an "AS IS" BASIS,
  29  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  30  * See the License for the specific language governing permissions and
  31  * limitations under the License.
  32  */
  33
  34 import java.util.Iterator;
  35
  36 import org.argeo.slc.client.ui.ClientUiPlugin;
  37 import org.argeo.slc.client.ui.model.ResultParent;
  38 import org.argeo.slc.client.ui.views.JcrResultTreeView;
  39 import org.eclipse.core.commands.AbstractHandler;
  40 import org.eclipse.core.commands.ExecutionEvent;
  41 import org.eclipse.core.commands.ExecutionException;
  42 import org.eclipse.jface.resource.ImageDescriptor;
  43 import org.eclipse.jface.viewers.IStructuredSelection;
  44 import org.eclipse.ui.handlers.HandlerUtil;
  45
  46 /**
  47  * Force refresh the ResultTreeView. This command is only intended to be called
  48  * by either the toolbar menu of the view or by the popup menu. Refresh due to
  49  * data changes must be triggered by Observers
  50  */
  51 public class RefreshJcrResultTreeView extends AbstractHandler {
  52         public final static String ID = ClientUiPlugin.ID
  53                         + ".refreshJcrResultTreeView";
  54         public final static String PARAM_REFRESH_TYPE = ClientUiPlugin.ID
  55                         + ".param.refreshType";
  56         public final static String PARAM_REFRESH_TYPE_FULL = "fullRefresh";
  57         public final static ImageDescriptor DEFAULT_IMG_DESCRIPTOR = ClientUiPlugin
  58         .getImageDescriptor("icons/refresh.png");
  59         public final static String DEFAULT_LABEL = "Refresh selected";
  60
  61         public Object execute(final ExecutionEvent event) throws ExecutionException {
  62                 String refreshType = event.getParameter(PARAM_REFRESH_TYPE);
  63                 JcrResultTreeView view = (JcrResultTreeView) HandlerUtil
  64                                 .getActiveWorkbenchWindow(event).getActivePage()
  65                                 .getActivePart();
  66
  67                 // force full refresh without preserving selection from the tool bar
  68                 if (PARAM_REFRESH_TYPE_FULL.equals(refreshType))
  69                         view.refresh(null);
  70                 else {
  71                         IStructuredSelection selection = (IStructuredSelection) HandlerUtil
  72                                         .getActiveWorkbenchWindow(event).getActivePage()
  73                                         .getSelection();
  74                         @SuppressWarnings("rawtypes")
  75                         Iterator it = selection.iterator();
  76                         while (it.hasNext()) {
  77                                 Object obj = it.next();
  78                                 if (obj instanceof ResultParent) {
  79                                         view.refresh((ResultParent) obj);
  80                                 }
  81                         }
  82                 }
  83                 return null;
  84         }
  85 }