eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/e4/details/DetailsPartE4.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2017 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.view.e4.details;
  11
  12 import javax.annotation.PostConstruct;
  13 import javax.inject.Inject;
  14
  15 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  16 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  17 import org.eclipse.jface.viewers.ISelectionChangedListener;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.swt.widgets.Composite;
  20
  21 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  22 import eu.etaxonomy.cdm.model.description.Feature;
  23 import eu.etaxonomy.taxeditor.l10n.Messages;
  24 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  25 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  26 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  27 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  28 import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
  29 import eu.etaxonomy.taxeditor.workbench.part.ISelectionElementEditingPart;
  30
  31 /**
  32  * @author pplitzner
  33  * @date 18.07.2017
  34  *
  35  */
  36 public class DetailsPartE4 extends AbstractCdmEditorPartE4 implements IPartContentHasSupplementalData {
  37
  38     private ISelectionChangedListener selectionChangedListener;
  39
  40     @Inject
  41     private ESelectionService selService;
  42
  43     @Inject
  44     public DetailsPartE4() {
  45     }
  46
  47     @PostConstruct
  48     public void create(Composite parent) {
  49         viewer = new DetailsViewerE4(parent, this);
  50
  51         // Propagate selection from viewer
  52         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
  53         viewer.addSelectionChangedListener(selectionChangedListener);
  54     }
  55
  56     @Override
  57     public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
  58         if (activePart==thisPart){
  59             return;
  60         }
  61
  62         Object partObject = createPartObject(activePart);
  63
  64         if(partObject instanceof IPartContentHasDetails){
  65             IStructuredSelection structuredSelection = createSelection(selection);
  66             if(structuredSelection==null || structuredSelection.isEmpty()){
  67                 showEmptyPage();
  68                 return;
  69             }
  70             if(!(partObject instanceof ISelectionElementEditingPart) &&
  71                     partObject instanceof IConversationEnabled && ((IConversationEnabled) partObject).getConversationHolder()==null) {
  72                 //TODO show specific message (refactor EmptyElement to allow specific messages)
  73                 showEmptyPage();
  74                 return;
  75             }
  76             // do not show details for feature nodes TODO strange check to avoid having shown the distribution map for every FeatureNodeContainer
  77             if(structuredSelection.getFirstElement() instanceof FeatureNodeContainer){
  78                 // do show the map for distributions
  79                 Feature feature = ((FeatureNodeContainer) structuredSelection.getFirstElement()).getFeature();
  80                 if(!feature.equals(Feature.DISTRIBUTION())){
  81                     showEmptyPage();
  82                     return;
  83                 }
  84             }
  85             showViewer(structuredSelection, activePart, viewer);
  86             return;
  87         }
  88         else if(selectionProvidingPart!=null && selectionProvidingPart.isVisible()){
  89             return;
  90         }
  91         else{
  92             showEmptyPage();
  93             return;
  94         }
  95     }
  96
  97 //    protected void showEmptyPage() {
  98 //        super.showEmptyPage();
  99 //        if(viewer!=null){
 100 //            viewer.showEmptyPage();
 101 //        }
 102 //        selectionProvidingPart = null;
 103 //    }
 104
 105     @Override
 106     protected String getViewName(){
 107         return Messages.DetailsViewPart_VIEWER_NAME;
 108     }
 109
 110 }