eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/handler/DynamicFeatureMenu.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.descriptive.handler;
  11
  12 import org.eclipse.jface.action.ContributionItem;
  13 import org.eclipse.jface.action.IContributionItem;
  14 import org.eclipse.jface.viewers.ISelection;
  15 import org.eclipse.jface.viewers.IStructuredSelection;
  16 import org.eclipse.swt.events.SelectionEvent;
  17 import org.eclipse.swt.events.SelectionListener;
  18 import org.eclipse.swt.widgets.Event;
  19 import org.eclipse.swt.widgets.Menu;
  20 import org.eclipse.swt.widgets.MenuItem;
  21 import org.eclipse.ui.ISelectionService;
  22 import org.eclipse.ui.actions.CompoundContributionItem;
  23 import org.eclipse.ui.handlers.IHandlerService;
  24
  25 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  26 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  27 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  28 import eu.etaxonomy.cdm.model.description.Feature;
  29 import eu.etaxonomy.cdm.model.description.FeatureNode;
  30 import eu.etaxonomy.cdm.model.description.FeatureTree;
  31 import eu.etaxonomy.taxeditor.editor.internal.TaxeditorEditorPlugin;
  32 import eu.etaxonomy.taxeditor.editor.view.descriptive.DescriptiveViewPart;
  33 import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.CreateDescriptionElementOperation;
  34 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  35 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  36 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  37 import eu.etaxonomy.taxeditor.store.CdmStore;
  38
  39 /**
  40  * <p>
  41  * DynamicFeatureMenu class.
  42  * </p>
  43  *
  44  * @author n.hoffmann
  45  * @created 17.04.2009
  46  * @version 1.0
  47  */
  48 public class DynamicFeatureMenu extends CompoundContributionItem {
  49
  50         private final ISelectionService selectionService = TaxeditorEditorPlugin.getDefault().getWorkbench().getService(ISelectionService.class);
  51         private final IHandlerService handlerService = TaxeditorEditorPlugin.getDefault().getWorkbench().getService(IHandlerService.class);
  52
  53         /*
  54          * (non-Javadoc)
  55          *
  56          * @see
  57          * org.eclipse.ui.actions.CompoundContributionItem#getContributionItems()
  58          */
  59         /** {@inheritDoc} */
  60         @Override
  61         protected IContributionItem[] getContributionItems() {
  62
  63                 return new IContributionItem[] { new ContributionItem() {
  64                         @Override
  65             public void fill(Menu menu, int index) {
  66
  67                                 ISelection selection = selectionService
  68                                                 .getSelection(DescriptiveViewPart.ID);
  69
  70                                 if (selection instanceof IStructuredSelection) {
  71                                         IStructuredSelection structuredSelection = (IStructuredSelection) selection;
  72                                         Object selectedElement = structuredSelection
  73                                                         .getFirstElement();
  74
  75                                         if (selectedElement instanceof DescriptionBase<?>) {
  76                                                 FeatureTree featureTree = getFeatureTree((DescriptionBase<?>) selectedElement);
  77
  78                                                 for (FeatureNode childNode : featureTree.getRootChildren()) {
  79                                                         createMenuItem(menu, childNode.getFeature());
  80
  81                                                 }
  82                                         } else if (selectedElement instanceof FeatureNodeContainer) {
  83                                                 FeatureNode featureNode = ((FeatureNodeContainer) selectedElement)
  84                                                                 .getFeatureNode();
  85
  86                                                 // add the feature to the menu
  87                                                 createMenuItem(menu, featureNode.getFeature());
  88
  89                                                 // add possible children to the menu
  90                                                 for (FeatureNode childNode : featureNode.getChildNodes()) {
  91                                                         createMenuItem(menu, childNode.getFeature());
  92                                                 }
  93                                         } else if (selectedElement instanceof DescriptionElementBase) {
  94                                                 Feature feature = ((DescriptionElementBase) selectedElement)
  95                                                                 .getFeature();
  96                                                 createMenuItem(menu, feature);
  97                                         }
  98                                 }
  99                         }
 100                 } };
 101         }
 102
 103         private void createMenuItem(Menu menu, final Feature feature) {
 104                 MenuItem menuItem = new MenuItem(menu, -1);
 105                 final Feature deproxiedFeature = HibernateProxyHelper.deproxy(feature, Feature.class);
 106
 107                 String label = deproxiedFeature.getLabel(PreferencesUtil.getGlobalLanguage());
 108                 if (label == null){
 109                         menuItem.setText(deproxiedFeature.getLabel());
 110                 }else{
 111                         menuItem.setText(label);
 112                 }
 113                 menuItem.addSelectionListener(new SelectionListener() {
 114
 115                         @Override
 116             public void widgetDefaultSelected(SelectionEvent e) {
 117                         }
 118
 119                         @Override
 120             public void widgetSelected(SelectionEvent ev) {
 121                                 Event event = new Event();
 122                                 event.data = deproxiedFeature;
 123                                 try {
 124                                         handlerService.executeCommand(
 125                                                         CreateDescriptionElementOperation.ID, event);
 126                                 } catch (Exception e) {
 127                                         MessagingUtils.error(getClass(), e);
 128                                 }
 129                         }
 130                 });
 131
 132         }
 133
 134         /**
 135          * Retrieves the feature tree associated with the given description
 136          *
 137          * TODO as of now this is always the same thing because feature trees may
 138          * not be associated to descriptions yet.
 139          *
 140          * @param description
 141          * @return
 142          */
 143         private FeatureTree getFeatureTree(DescriptionBase description) {
 144                 FeatureTree featureTree = null;
 145
 146                 // TODO change this to the feature tree associated with this taxon
 147                 // description
 148                 if (description.hasStructuredData()) {
 149                         featureTree = PreferencesUtil
 150                                         .getDefaultFeatureTreeForStructuredDescription();
 151                 } else {
 152                         featureTree = PreferencesUtil
 153                                         .getDefaultFeatureTreeForTextualDescription();
 154                 }
 155
 156                 if (featureTree == null) {
 157                         featureTree = FeatureTree.NewInstance(CdmStore.getTermManager()
 158                                         .getPreferredTerms(Feature.class));
 159                 }
 160
 161                 return featureTree;
 162         }
 163 }