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.annotation.PreDestroy;
  14 import javax.inject.Inject;
  15 import javax.inject.Named;
  16
  17 import org.eclipse.e4.core.di.annotations.Optional;
  18 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  19 import org.eclipse.e4.ui.services.IServiceConstants;
  20 import org.eclipse.jface.viewers.IStructuredSelection;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.jface.viewers.Viewer;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.ui.IEditorPart;
  25
  26 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  27 import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
  28 import eu.etaxonomy.cdm.model.description.Feature;
  29 import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
  30 import eu.etaxonomy.taxeditor.l10n.Messages;
  31 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  32 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  33 import eu.etaxonomy.taxeditor.model.IDirtyMarkable;
  34 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  35 import eu.etaxonomy.taxeditor.workbench.WorkbenchUtility;
  36
  37 /**
  38  * @author pplitzner
  39  * @date 18.07.2017
  40  *
  41  */
  42 public class DetailsPartE4 implements IConversationEnabled, IDirtyMarkable{
  43
  44     private DetailsViewerE4 viewer;
  45
  46     private MPart selectionProvidingPart;
  47
  48     @Inject
  49     public DetailsPartE4() {
  50     }
  51
  52     @PostConstruct
  53     public void create(Composite parent) {
  54         viewer = new DetailsViewerE4(parent, this);
  55     }
  56
  57     @Inject
  58     @Optional
  59     public void selectionChanged(
  60             @Named(IServiceConstants.ACTIVE_SELECTION)Object selection,
  61             @Named(IServiceConstants.ACTIVE_PART)MPart activePart,
  62             MPart thisPart){
  63         if(activePart==thisPart || selection==null){
  64             return;
  65         }
  66
  67         Object partObject = activePart;
  68         Object wrappedPart = WorkbenchUtility.getE4WrappedPart(activePart);
  69         if(wrappedPart!=null){
  70             partObject = wrappedPart;
  71         }
  72
  73         IStructuredSelection structuredSelection;
  74         if(!(selection instanceof IStructuredSelection)){
  75             structuredSelection = new StructuredSelection(selection);
  76         }
  77         else{
  78             structuredSelection = (IStructuredSelection) selection;
  79         }
  80         if((partObject instanceof IEditorPart) || (partObject instanceof IPartContentHasDetails)
  81                 && partObject instanceof IConversationEnabled) {
  82             // do not show details for feature nodes TODO strange check to avoid having shown the distribution map for every FeatureNodeContainer
  83             if(structuredSelection.getFirstElement() instanceof FeatureNodeContainer){
  84                 // do show the map for distributions
  85                 Feature feature = ((FeatureNodeContainer) ((IStructuredSelection) selection).getFirstElement()).getFeature();
  86                 if(!feature.equals(Feature.DISTRIBUTION())){
  87                     showEmptyPage();
  88                     return;
  89                 }
  90             }
  91             showViewer(structuredSelection);
  92             selectionProvidingPart = activePart;
  93         }
  94         else{
  95             showEmptyPage();
  96         }
  97     }
  98
  99     public void showEmptyPage() {
 100         viewer.showEmptyPage();
 101         selectionProvidingPart = null;
 102     }
 103
 104     protected String getViewName(){
 105         return Messages.DetailsViewPart_VIEWER_NAME;
 106     }
 107
 108     public Viewer getViewer() {
 109         return viewer;
 110     }
 111
 112
 113     @PreDestroy
 114     public void dispose() {
 115     }
 116
 117     public void showViewer(IStructuredSelection selection){
 118         if(getViewer()!=null){
 119             Object element = selection.getFirstElement();
 120             if(selection.getFirstElement()!=null){
 121                 getViewer().setInput(element);
 122             }
 123         }
 124     }
 125
 126     /**
 127      * {@inheritDoc}
 128      */
 129     @Override
 130     public void update(CdmDataChangeMap arg0) {
 131         // TODO Auto-generated method stub
 132
 133     }
 134
 135     /**
 136      * {@inheritDoc}
 137      */
 138     @Override
 139     public ConversationHolder getConversationHolder() {
 140         if(selectionProvidingPart != null && selectionProvidingPart instanceof IConversationEnabled) {
 141             return ((IConversationEnabled) selectionProvidingPart).getConversationHolder();
 142         }
 143         return null;
 144     }
 145
 146     /** {@inheritDoc} */
 147     @Override
 148     public void changed(Object object) {
 149         Object part = selectionProvidingPart.getObject();
 150         if(part instanceof IDirtyMarkable){
 151             ((IDirtyMarkable) part).changed(object);
 152         }
 153         else {
 154             IEditorPart editor = AbstractUtility.getActiveEditor();
 155             if (editor != null && editor instanceof IDirtyMarkable) {
 156                 ((IDirtyMarkable) editor).changed(object);
 157             }
 158         }
 159     }
 160
 161     /**
 162      * {@inheritDoc}
 163      */
 164     @Override
 165     public void forceDirty() {
 166         // TODO Auto-generated method stub
 167
 168     }
 169 }