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.apache.log4j.Logger;
  14 import org.eclipse.jface.viewers.IStructuredSelection;
  15 import org.eclipse.jface.viewers.StructuredSelection;
  16 import org.eclipse.ui.IEditorInput;
  17 import org.eclipse.ui.IEditorPart;
  18 import org.eclipse.ui.IWorkbenchPage;
  19 import org.eclipse.ui.navigator.ILinkHelper;
  20
  21 import eu.etaxonomy.cdm.model.taxon.Taxon;
  22 import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
  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         private static final Logger logger = Logger
  34                         .getLogger(TaxonLinkHelper.class);
  35
  36         public static final String ID = "eu.etaxonomy.taxeditor.navigation.taxonlinkhelper"; //$NON-NLS-1$
  37
  38         /* (non-Javadoc)
  39          * @see org.eclipse.ui.navigator.ILinkHelper#activateEditor(org.eclipse.ui.IWorkbenchPage, org.eclipse.jface.viewers.IStructuredSelection)
  40          */
  41         public void activateEditor(IWorkbenchPage page,
  42                         IStructuredSelection selection) {
  43                 if (selection == null || selection.isEmpty()) {
  44                         return;
  45                 }
  46                 if (selection.getFirstElement() instanceof Taxon) {
  47                         Taxon taxon = (Taxon) selection.getFirstElement();
  48                         TaxonEditorInput taxonEditorInput = TaxonEditorInput.NewInstance(taxon.getUuid());
  49                         IEditorPart editor = null;
  50                         if ((editor = page.findEditor(taxonEditorInput)) != null) {
  51                                 page.bringToTop(editor);
  52                         }
  53                 }
  54         }
  55
  56         /* (non-Javadoc)
  57          * @see org.eclipse.ui.navigator.ILinkHelper#findSelection(org.eclipse.ui.IEditorInput)
  58          */
  59         public IStructuredSelection findSelection(IEditorInput editorInput) {
  60                 if (editorInput instanceof TaxonEditorInput) {
  61                         Taxon taxon = ((TaxonEditorInput) editorInput).getTaxon();
  62                         if (taxon != null) {
  63                                 return new StructuredSelection(taxon);
  64                         }
  65                 }
  66                 return StructuredSelection.EMPTY;
  67         }
  68 }