eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/key/polytomous/handler/EditHandler.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.key.polytomous.handler;
  12
  13 import org.eclipse.core.commands.AbstractHandler;
  14 import org.eclipse.core.commands.ExecutionEvent;
  15 import org.eclipse.core.commands.ExecutionException;
  16 import org.eclipse.jface.viewers.ISelection;
  17 import org.eclipse.jface.viewers.StructuredSelection;
  18 import org.eclipse.ui.handlers.HandlerUtil;
  19
  20 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  21 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  22
  23 /**
  24  * @author n.hoffmann
  25  * @created Dec 3, 2010
  26  * @version 1.0
  27  */
  28 public class EditHandler extends AbstractHandler {
  29
  30         /* (non-Javadoc)
  31          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  32          */
  33         @Override
  34         public Object execute(ExecutionEvent event) throws ExecutionException {
  35                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  36
  37                 if(selection instanceof StructuredSelection){
  38                         final StructuredSelection structuredSelection = (StructuredSelection) selection;
  39
  40                         if(structuredSelection.size() == 1 && structuredSelection.getFirstElement() instanceof PolytomousKey){
  41                                 NavigationUtil.openEditor((PolytomousKey) structuredSelection.getFirstElement());
  42                         }
  43
  44                 }
  45                 return null;
  46         }
  47
  48 }