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.view.e4.AbstractCdmEditorPartE4;
  28 import eu.etaxonomy.taxeditor.workbench.part.ISelectionElementEditingPart;
  29
  30 /**
  31  * @author pplitzner
  32  * @date 18.07.2017
  33  *
  34  */
  35 public class DetailsPartE4 extends AbstractCdmEditorPartE4{
  36
  37     private ISelectionChangedListener selectionChangedListener;
  38
  39     @Inject
  40     private ESelectionService selService;
  41
  42     @Inject
  43     public DetailsPartE4() {
  44     }
  45
  46     @PostConstruct
  47     public void create(Composite parent, MPart thisPart) {
  48
  49         this.thisPart = thisPart;
  50
  51         viewer = new DetailsViewerE4(parent, this);
  52
  53         // Propagate selection from viewer
  54         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
  55         viewer.addSelectionChangedListener(selectionChangedListener);
  56     }
  57
  58     @Override
  59     public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
  60         if (activePart==thisPart){
  61             return;
  62         }
  63
  64         Object partObject = createPartObject(activePart);
  65
  66         if(partObject instanceof IPartContentHasDetails){
  67             IStructuredSelection structuredSelection = createSelection(selection);
  68             if(structuredSelection==null || structuredSelection.isEmpty()){
  69                 showEmptyPage();
  70                 return;
  71             }
  72             if(!(partObject instanceof ISelectionElementEditingPart) &&
  73                     partObject instanceof IConversationEnabled && ((IConversationEnabled) partObject).getConversationHolder()==null) {
  74                 //TODO show specific message (refactor EmptyElement to allow specific messages)
  75                 showEmptyPage();
  76                 return;
  77             }
  78             // do not show details for feature nodes TODO strange check to avoid having shown the distribution map for every FeatureNodeContainer
  79             if(structuredSelection.getFirstElement() instanceof FeatureNodeContainer){
  80                 // do show the map for distributions
  81                 Feature feature = ((FeatureNodeContainer) structuredSelection.getFirstElement()).getFeature();
  82                 if(!feature.equals(Feature.DISTRIBUTION())){
  83                     showEmptyPage();
  84                     return;
  85                 }
  86             }
  87             showViewer(structuredSelection, activePart, viewer);
  88             return;
  89         }
  90         else if(selectionProvidingPart!=null && selectionProvidingPart.isVisible()){
  91             return;
  92         }
  93         else{
  94             showEmptyPage();
  95             return;
  96         }
  97     }
  98
  99 //    protected void showEmptyPage() {
 100 //        super.showEmptyPage();
 101 //        if(viewer!=null){
 102 //            viewer.showEmptyPage();
 103 //        }
 104 //        selectionProvidingPart = null;
 105 //    }
 106
 107     @Override
 108     protected String getViewName(){
 109         return Messages.DetailsViewPart_VIEWER_NAME;
 110     }
 111
 112 }