eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/concept/e4/ConceptViewPartE4.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.editor.view.concept.e4;
  11
  12 import java.util.Map.Entry;
  13
  14 import javax.annotation.PostConstruct;
  15
  16 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  17 import org.eclipse.e4.ui.services.EMenuService;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.IStructuredSelection;
  20 import org.eclipse.jface.viewers.ListViewer;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.jface.viewers.ViewerSorter;
  23 import org.eclipse.swt.widgets.Composite;
  24
  25 import eu.etaxonomy.cdm.model.taxon.Taxon;
  26 import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
  27 import eu.etaxonomy.taxeditor.editor.key.e4.AbstractGraphKeyEditorE4;
  28 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  29 import eu.etaxonomy.taxeditor.editor.view.concept.ConceptContentProvider;
  30 import eu.etaxonomy.taxeditor.editor.view.concept.ConceptLabelProvider;
  31 import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
  32 import eu.etaxonomy.taxeditor.editor.view.media.e4.MediaViewPartE4;
  33 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  34 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  35 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  36 import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
  37 import eu.etaxonomy.taxeditor.view.e4.details.DetailsPartE4;
  38 import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
  39
  40 /**
  41  *
  42  * @author pplitzner
  43  * @date 21.08.2017
  44  *
  45  */
  46 public class ConceptViewPartE4 extends AbstractCdmEditorPartE4
  47 implements IPartContentHasDetails, IPartContentHasSupplementalData{
  48
  49     @Override
  50     public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
  51         if(activePart==thisPart){
  52             return;
  53         }
  54         if (!viewer.getControl().isDisposed()){
  55             viewer.getControl().setEnabled(true);
  56         }
  57         Object partObject = createPartObject(activePart);
  58         IStructuredSelection structuredSelection = createSelection(selection);
  59
  60         if (partObject instanceof DetailsPartE4 || partObject instanceof SupplementalDataPartE4
  61                 || partObject instanceof FactualDataPartE4|| partObject instanceof MediaViewPartE4) {
  62             // do not show empty page as these views are also used to edit the
  63             // description selected in this view
  64             return;
  65         }
  66                 else if(partObject instanceof AbstractGraphKeyEditorE4){
  67                         showEmptyPage();
  68                 }
  69                 else if(selection!=null){
  70                     showViewer(structuredSelection, activePart, viewer);
  71                 }
  72                 else {
  73                     showEmptyPage();
  74                 }
  75
  76         }
  77
  78         @PostConstruct
  79     public void create(Composite parent, EMenuService menuService, MPart thisPart) {
  80
  81             this.thisPart = thisPart;
  82
  83             ConceptRelationViewer conceptViewer = new ConceptRelationViewer(parent);
  84
  85             conceptViewer.setContentProvider(new ConceptContentProvider());
  86             conceptViewer.setLabelProvider(new ConceptLabelProvider());
  87
  88
  89             conceptViewer.setSorter(new ViewerSorter());
  90
  91                 viewer = conceptViewer;
  92
  93                 // Propagate selection from viewer
  94         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
  95         viewer.addSelectionChangedListener(selectionChangedListener);
  96
  97         //create context menu
  98         menuService.registerContextMenu(viewer.getControl(), "eu.etaxonomy.taxeditor.editor.popupmenu.conceptview");
  99
 100         }
 101
 102         @Override
 103         public void changed(Object object) {
 104                 getViewer().refresh();
 105                 super.changed(object);
 106         }
 107
 108         private class ConceptRelationViewer extends ListViewer {
 109
 110                 public ConceptRelationViewer(Composite parent) {
 111                         super(parent);
 112                 }
 113
 114                 @Override
 115                 public ISelection getSelection() {
 116                         ISelection selection = super.getSelection();
 117                         if(selection instanceof IStructuredSelection && !selection.isEmpty()){
 118                                 Object firstElement = ((IStructuredSelection) selection).getFirstElement();
 119                                 TaxonRelationship taxonRelationship = ((Entry<TaxonRelationship, Taxon>)firstElement).getKey();
 120                                 return new StructuredSelection(taxonRelationship);
 121
 122                         }
 123                         return selection;
 124                 }
 125
 126                 @Override
 127                 public void setSelection(ISelection selection) {
 128                         super.setSelection(selection);
 129                 }
 130
 131         }
 132
 133         @Override
 134         protected String getViewName() {
 135                 return Messages.ConceptViewPart_VIEWER_NAME;
 136         }
 137
 138 }