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.core.contexts.ContextInjectionFactory;
  16 import org.eclipse.e4.core.contexts.IEclipseContext;
  17 import org.eclipse.e4.core.services.log.Logger;
  18 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  19 import org.eclipse.jface.viewers.IStructuredSelection;
  20 import org.eclipse.swt.SWTException;
  21 import org.eclipse.swt.widgets.Composite;
  22
  23 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  24 import eu.etaxonomy.cdm.model.description.Feature;
  25 import eu.etaxonomy.taxeditor.l10n.Messages;
  26 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  27 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  28 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  29 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  30 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  31 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  32 import eu.etaxonomy.taxeditor.view.e4.AbstractCdmEditorPartE4;
  33 import eu.etaxonomy.taxeditor.view.e4.supplementaldata.SupplementalDataPartE4;
  34 import eu.etaxonomy.taxeditor.workbench.part.ISelectionElementEditingPart;
  35
  36 /**
  37  * @author pplitzner
  38  * @date 18.07.2017
  39  *
  40  */
  41 public class DetailsPartE4 extends AbstractCdmEditorPartE4 implements IPartContentHasSupplementalData {
  42         @Inject
  43         private Logger logger;
  44
  45         @Inject
  46     public DetailsPartE4() {
  47     }
  48
  49     @PostConstruct
  50     public void create(Composite parent, MPart thisPart, IEclipseContext context) {
  51
  52         this.thisPart = thisPart;
  53
  54         viewer = ContextInjectionFactory.make(DetailsViewerE4.class, context);
  55         ((DetailsViewerE4)viewer).init(parent, this);
  56
  57         // Propagate selection from viewer
  58         selectionChangedListener = (event -> selService.setSelection(AbstractUtility.getElementsFromSelectionChangedEvent(event)));
  59         viewer.addSelectionChangedListener(selectionChangedListener);
  60     }
  61
  62     @Override
  63     public void selectionChanged_internal(Object selection, MPart activePart, MPart thisPart) {
  64         if (activePart==thisPart){
  65             return;
  66         }
  67
  68         Object partObject = createPartObject(activePart);
  69         if (partObject instanceof SupplementalDataPartE4) {
  70             // do not show empty page
  71             return;
  72         }
  73
  74         if(partObject instanceof IPartContentHasDetails){
  75             IStructuredSelection structuredSelection = createSelection(selection);
  76             if(structuredSelection==null || structuredSelection.isEmpty()){
  77                 showEmptyPage();
  78                 return;
  79             }
  80             if(!(partObject instanceof ISelectionElementEditingPart) &&
  81                     partObject instanceof IConversationEnabled && ((IConversationEnabled) partObject).getConversationHolder()==null) {
  82                 //TODO show specific message (refactor EmptyElement to allow specific messages)
  83                 showEmptyPage();
  84                 return;
  85             }
  86             // do not show details for feature nodes TODO strange check to avoid having shown the distribution map for every FeatureNodeContainer
  87             if(structuredSelection.getFirstElement() instanceof FeatureNodeContainer){
  88                 // do show the map for distributions
  89                 Feature feature = ((FeatureNodeContainer) structuredSelection.getFirstElement()).getFeature();
  90                 if(!feature.equals(Feature.DISTRIBUTION())){
  91                     showEmptyPage();
  92                     return;
  93                 }
  94             }
  95 //            if (partObject instanceof IDistributionEditor){
  96 //
  97 //                showViewer(structuredSelection, activePart, viewer);
  98 //                return;
  99 //
 100 //            }
 101             //FIXME this is a temporary workaround to fix selection handling for supplemental data view
 102             // Now the supp data view gets double selection from details view and name editor (see #7126)
 103             viewer.setSelection(structuredSelection, false);
 104             showViewer(structuredSelection, activePart, viewer);
 105             return;
 106         }
 107         else{
 108             showEmptyPage();
 109             return;
 110         }
 111     }
 112
 113     @Override
 114     protected void showEmptyPage() {
 115         super.showEmptyPage();
 116         if(viewer!=null && viewer.getControl()!=null && !viewer.getControl().isDisposed() ){
 117                 try{
 118                         ((DetailsViewerE4)viewer).destroySections();
 119                 }catch(SWTException e){
 120                         if (PreferencesUtil.isShowUpWidgetIsDisposedMessages() && e.getMessage().equals("Widget is disposed")){
 121                     MessagingUtils.errorDialog("Widget is disposed",
 122                             null,
 123                             MessagingUtils.WIDGET_IS_DISPOSED_MESSAGE,
 124                             null,
 125                             e,
 126                             true);
 127
 128                 }
 129                 }
 130         }
 131     }
 132
 133     @Override
 134     protected String getViewName(){
 135         return Messages.DetailsViewPart_VIEWER_NAME;
 136     }
 137
 138 }