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 import javax.inject.Inject;
  16 import javax.inject.Named;
  17
  18 import org.eclipse.e4.core.di.annotations.Optional;
  19 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  20 import org.eclipse.e4.ui.services.EMenuService;
  21 import org.eclipse.e4.ui.services.IServiceConstants;
  22 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  23 import org.eclipse.jface.viewers.ISelection;
  24 import org.eclipse.jface.viewers.ISelectionChangedListener;
  25 import org.eclipse.jface.viewers.IStructuredSelection;
  26 import org.eclipse.jface.viewers.ListViewer;
  27 import org.eclipse.jface.viewers.StructuredSelection;
  28 import org.eclipse.jface.viewers.ViewerSorter;
  29 import org.eclipse.swt.widgets.Composite;
  30 import org.eclipse.ui.IEditorInput;
  31 import org.eclipse.ui.IEditorPart;
  32
  33 import eu.etaxonomy.cdm.model.taxon.Taxon;
  34 import eu.etaxonomy.cdm.model.taxon.TaxonRelationship;
  35 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  36 import eu.etaxonomy.taxeditor.editor.key.AbstractGraphKeyEditor;
  37 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  38 import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditorE4;
  39 import eu.etaxonomy.taxeditor.editor.view.concept.ConceptContentProvider;
  40 import eu.etaxonomy.taxeditor.editor.view.concept.ConceptLabelProvider;
  41 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  42 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  43 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  44 import eu.etaxonomy.taxeditor.model.LineSelection;
  45 import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
  46 import eu.etaxonomy.taxeditor.view.e4.details.DetailsPartE4;
  47 import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
  48
  49 /**
  50  *
  51  * @author pplitzner
  52  * @date 21.08.2017
  53  *
  54  */
  55 public class ConceptViewPartE4 extends AbstractCdmEditorPartE4
  56 implements IPartContentHasDetails, IPartContentHasSupplementalData{
  57
  58     private ISelectionChangedListener selectionChangedListener;
  59
  60     @Inject
  61     private ESelectionService selService;
  62
  63     @Inject
  64     @Optional
  65     public void selectionChanged(
  66             @Named(IServiceConstants.ACTIVE_SELECTION)Object selection,
  67             @Named(IServiceConstants.ACTIVE_PART)MPart activePart,
  68             MPart thisPart){
  69         if(activePart==thisPart){
  70             return;
  71         }
  72
  73         Object partObject = createPartObject(activePart);
  74
  75         if (partObject instanceof DetailsPartE4 || partObject instanceof SupplementalDataPartE4) {
  76             // do not show empty page as these views are also used to edit the
  77             // description selected in this view
  78             return;
  79         }
  80         else if(partObject instanceof BulkEditor && selection instanceof LineSelection){
  81                         if(((LineSelection) selection).getFirstElement() instanceof Taxon){
  82                                 showViewer((LineSelection) selection, activePart, viewer);
  83                         }
  84                         else{
  85                                 showEmptyPage();
  86                         }
  87                         return;
  88                 }
  89                 else if(partObject instanceof AbstractGraphKeyEditor){
  90                         showEmptyPage();
  91                 }
  92                 else if(partObject instanceof TaxonNameEditorE4){
  93                     IEditorInput input = ((IEditorPart) partObject).getEditorInput();
  94                     showViewer(new StructuredSelection(input), activePart, viewer);
  95                 }
  96                 else {
  97                     showEmptyPage();
  98                 }
  99
 100         }
 101
 102         @PostConstruct
 103     public void create(Composite parent, EMenuService menuService, MPart thisPart) {
 104
 105             this.thisPart = thisPart;
 106
 107             ConceptRelationViewer conceptViewer = new ConceptRelationViewer(parent);
 108
 109             conceptViewer.setContentProvider(new ConceptContentProvider());
 110             conceptViewer.setLabelProvider(new ConceptLabelProvider());
 111
 112
 113             conceptViewer.setSorter(new ViewerSorter());
 114
 115                 viewer = conceptViewer;
 116
 117                 // Propagate selection from viewer
 118         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
 119         viewer.addSelectionChangedListener(selectionChangedListener);
 120
 121         //create context menu
 122         menuService.registerContextMenu(viewer.getControl(), "eu.etaxonomy.taxeditor.editor.popupmenu.conceptview");
 123
 124         }
 125
 126         @Override
 127         public void changed(Object object) {
 128                 getViewer().refresh();
 129                 super.changed(object);
 130         }
 131
 132         private class ConceptRelationViewer extends ListViewer {
 133
 134                 public ConceptRelationViewer(Composite parent) {
 135                         super(parent);
 136                 }
 137
 138                 @Override
 139                 public ISelection getSelection() {
 140                         ISelection selection = super.getSelection();
 141                         if(selection instanceof IStructuredSelection && !selection.isEmpty()){
 142                                 Object firstElement = ((IStructuredSelection) selection).getFirstElement();
 143                                 TaxonRelationship taxonRelationship = ((Entry<TaxonRelationship, Taxon>)firstElement).getKey();
 144                                 return new StructuredSelection(taxonRelationship);
 145
 146                         }
 147                         return selection;
 148                 }
 149
 150                 @Override
 151                 public void setSelection(ISelection selection) {
 152                         super.setSelection(selection);
 153                 }
 154
 155         }
 156
 157         @Override
 158         protected String getViewName() {
 159                 return Messages.ConceptViewPart_VIEWER_NAME;
 160         }
 161
 162 }