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

   1 /**
   2 * Copyright (C) 2017 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 package eu.etaxonomy.taxeditor.view.e4.details;
  10
  11 import javax.annotation.PostConstruct;
  12 import javax.inject.Inject;
  13
  14 import org.eclipse.e4.core.contexts.ContextInjectionFactory;
  15 import org.eclipse.e4.core.contexts.IEclipseContext;
  16 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  17 import org.eclipse.jface.viewers.ISelection;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.jface.viewers.StructuredSelection;
  20 import org.eclipse.jface.viewers.TreeSelection;
  21 import org.eclipse.jface.viewers.TreeViewer;
  22 import org.eclipse.swt.SWTException;
  23 import org.eclipse.swt.widgets.Composite;
  24
  25 import eu.etaxonomy.cdm.model.description.Feature;
  26 import eu.etaxonomy.taxeditor.l10n.Messages;
  27 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  28 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  29 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  30 import eu.etaxonomy.taxeditor.model.IPartContentHasFactualData;
  31 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  32 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  33 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  34 import eu.etaxonomy.taxeditor.view.detail.CdmSectionPart;
  35 import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPart;
  36 import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
  37
  38 /**
  39  * @author pplitzner
  40  * @date 18.07.2017
  41  */
  42 public class DetailsPartE4 extends AbstractCdmEditorPart<DetailsViewerE4> implements IPartContentHasSupplementalData, IPartContentHasFactualData {
  43
  44         @Inject
  45     public DetailsPartE4() {
  46     }
  47
  48     @PostConstruct
  49     public void create(Composite parent, MPart thisPart, IEclipseContext context) {
  50
  51         this.thisPart = thisPart;
  52
  53         viewer = ContextInjectionFactory.make(DetailsViewerE4.class, context);
  54         viewer.init(parent, this);
  55
  56         // Propagate selection from viewer
  57         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
  58         viewer.addSelectionChangedListener(selectionChangedListener);
  59     }
  60
  61     @Override
  62     public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
  63         if (activePart == null) {
  64                 return;
  65         }
  66
  67         if (activePart == thisPart ){
  68                 if (this.getViewer().isNeedsRefresh()) {
  69                         viewer.refresh();
  70                         viewer.setNeedsRefresh(false);
  71                         return;
  72                 }else {
  73                         return;
  74                 }
  75         }
  76
  77
  78
  79         Object partObject = getPartObject(activePart);
  80         if (partObject instanceof SupplementalDataPartE4 ) {
  81             // do not show empty page
  82             return;
  83         }
  84
  85         if (partObject instanceof AbstractCdmEditorPart && ((AbstractCdmEditorPart)partObject).getViewer() instanceof TreeViewer ) {
  86                 //active part is factual data view or media view
  87                 IStructuredSelection structuredSelection = createSelection(selection);
  88                 if (structuredSelection != null && !structuredSelection.isEmpty()) {
  89                         //if the active part is empty the selection is still the previous selection
  90                         if (!(structuredSelection instanceof TreeSelection)) {
  91                                 return;
  92                         }
  93                 }
  94
  95             }
  96
  97         if(partObject instanceof IPartContentHasDetails){
  98             IStructuredSelection structuredSelection = createSelection(selection);
  99             if(structuredSelection == null || structuredSelection.isEmpty()){
 100                 showEmptyPage();
 101                 return;
 102             }
 103
 104             // do not show details for feature nodes TODO strange check to avoid having shown the distribution map for every FeatureNodeContainer
 105             if(structuredSelection.getFirstElement() instanceof FeatureNodeContainer){
 106                 // do show the map for distributions
 107                 Feature feature = ((FeatureNodeContainer) structuredSelection.getFirstElement()).getFeature();
 108                 if(!feature.equals(Feature.DISTRIBUTION())){
 109                     showEmptyPage();
 110                     return;
 111                 }
 112             }
 113
 114             //FIXME this is a temporary workaround to fix selection handling for supplemental data view
 115             // Now the supp data view gets double selection from details view and name editor (see #7126)
 116
 117             viewer.setSelection(structuredSelection, false);
 118
 119             showViewer(structuredSelection, activePart, viewer);
 120             viewer.setNeedsRefresh(false);
 121             return;
 122         }
 123         else{
 124             showEmptyPage();
 125             return;
 126         }
 127     }
 128
 129     public void refreshSelection(){
 130         this.viewer.refresh_withoutnew_build();
 131     }
 132
 133     @Override
 134     protected void showEmptyPage() {
 135         super.showEmptyPage();
 136         if(viewer != null && viewer.getControl() != null && !viewer.getControl().isDisposed() ){
 137                 try{
 138                         viewer.destroySections();
 139                 }catch(SWTException e){
 140                         if (PreferencesUtil.isShowUpWidgetIsDisposedMessages() && e.getMessage().equals("Widget is disposed")){
 141                     MessagingUtils.errorDialog("Widget is disposed",
 142                             null,
 143                             MessagingUtils.WIDGET_IS_DISPOSED_MESSAGE,
 144                             null,
 145                             e,
 146                             true);
 147                 }
 148                 }
 149         }
 150     }
 151
 152     @Override
 153     protected String getViewName(){
 154         return Messages.DetailsViewPart_VIEWER_NAME;
 155     }
 156
 157 }