org.argeo.cms.e4/src/org/argeo/cms/e4/jcr/handlers/Refresh.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.cms.e4.jcr.handlers;
  17
  18 import java.util.List;
  19
  20 import javax.inject.Named;
  21
  22 import org.argeo.cms.e4.jcr.JcrBrowserView;
  23 import org.argeo.cms.ui.jcr.JcrBrowserUtils;
  24 import org.argeo.eclipse.ui.TreeParent;
  25 import org.eclipse.e4.core.di.annotations.Execute;
  26 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  27 import org.eclipse.e4.ui.services.IServiceConstants;
  28 import org.eclipse.e4.ui.workbench.modeling.EPartService;
  29 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  30
  31 /**
  32  * Force the selected objects of the active view to be refreshed doing the
  33  * following:
  34  * <ol>
  35  * <li>The model objects are recomputed</li>
  36  * <li>the view is refreshed</li>
  37  * </ol>
  38  */
  39 public class Refresh {
  40
  41         @Execute
  42         public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part, EPartService partService,
  43                         ESelectionService selectionService) {
  44
  45                 JcrBrowserView view = (JcrBrowserView) part.getObject();
  46                 List<?> selection = (List<?>) selectionService.getSelection();
  47
  48                 if (selection != null && !selection.isEmpty()) {
  49                         for (Object obj : selection)
  50                                 if (obj instanceof TreeParent) {
  51                                         TreeParent tp = (TreeParent) obj;
  52                                         JcrBrowserUtils.forceRefreshIfNeeded(tp);
  53                                         view.refresh(obj);
  54                                 }
  55                 } else if (view instanceof JcrBrowserView)
  56                         view.refresh(null); // force full refresh
  57         }
  58 }