eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonLinkHelper.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.taxeditor.navigation.navigator;
  12
  13 import org.eclipse.jface.viewers.IStructuredSelection;
  14 import org.eclipse.jface.viewers.StructuredSelection;
  15 import org.eclipse.ui.IEditorInput;
  16 import org.eclipse.ui.IEditorPart;
  17 import org.eclipse.ui.IWorkbenchPage;
  18 import org.eclipse.ui.navigator.ILinkHelper;
  19
  20 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  21 import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
  22 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  23
  24 /**
  25  * When a taxon is open in an editor and this editor has focus, its entry in the
  26  * navigator's taxonomic tree is selected.
  27  *
  28  * @author p.ciardelli
  29  * @created 03.06.2009
  30  * @version 1.0
  31  */
  32 public class TaxonLinkHelper implements ILinkHelper {
  33
  34         /** Constant <code>ID="eu.etaxonomy.taxeditor.navigation.taxon"{trunked}</code> */
  35         public static final String ID = "eu.etaxonomy.taxeditor.navigation.taxonlinkhelper"; //$NON-NLS-1$
  36
  37         /* (non-Javadoc)
  38          * @see org.eclipse.ui.navigator.ILinkHelper#activateEditor(org.eclipse.ui.IWorkbenchPage, org.eclipse.jface.viewers.IStructuredSelection)
  39          */
  40         /** {@inheritDoc} */
  41         public void activateEditor(IWorkbenchPage page,
  42                         IStructuredSelection selection) {
  43                 try {
  44                         if (selection == null || selection.isEmpty()) {
  45                                 return;
  46                         }
  47                         if (selection.getFirstElement() instanceof TaxonNode) {
  48                                 TaxonNode taxonNode = (TaxonNode) selection.getFirstElement();
  49                                 TaxonEditorInput taxonEditorInput;
  50
  51                                         taxonEditorInput = TaxonEditorInput.NewInstance(taxonNode.getUuid());
  52
  53                                 IEditorPart editor = null;
  54                                 if ((editor = page.findEditor(taxonEditorInput)) != null) {
  55                                         page.bringToTop(editor);
  56                                 }
  57                         }
  58                 } catch (Exception e) {
  59                         MessagingUtils.warningDialog("Could not create Taxon", this, e.getMessage());
  60                 }
  61         }
  62
  63         /* (non-Javadoc)
  64          * @see org.eclipse.ui.navigator.ILinkHelper#findSelection(org.eclipse.ui.IEditorInput)
  65          */
  66         /** {@inheritDoc} */
  67         public IStructuredSelection findSelection(IEditorInput editorInput) {
  68                 if (editorInput instanceof TaxonEditorInput) {
  69                         TaxonNode taxonNode = ((TaxonEditorInput) editorInput).getTaxonNode();
  70                         if (taxonNode != null) {
  71                                 return new StructuredSelection(taxonNode);
  72                         }
  73                 }
  74                 return StructuredSelection.EMPTY;
  75         }
  76 }