eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/key/polytomous/handler/DeleteHandler.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 java.util.List;
  14
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.commands.common.NotDefinedException;
  19 import org.eclipse.jface.viewers.IStructuredSelection;
  20 import org.eclipse.ui.handlers.HandlerUtil;
  21
  22 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  23 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  24 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  25 import eu.etaxonomy.taxeditor.navigation.key.polytomous.PolytomousKeyViewPart;
  26 import eu.etaxonomy.taxeditor.navigation.key.polytomous.operation.DeleteOperation;
  27 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  28
  29 /**
  30  * @author n.hoffmann
  31  * @created Dec 3, 2010
  32  * @version 1.0
  33  */
  34 public class DeleteHandler extends AbstractHandler {
  35
  36         /* (non-Javadoc)
  37          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  38          */
  39         @Override
  40         public Object execute(ExecutionEvent event) throws ExecutionException {
  41                 IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
  42
  43                 List<PolytomousKey> keys = selection.toList();
  44
  45                 if(keys.isEmpty()){
  46                         return null;
  47                 }
  48
  49                 boolean confirmation = MessagingUtils.confirmDialog("Confirm deletaion", "Do you want to delete the selected key" + (keys.size() == 1 ? "" : "s") + "?");
  50
  51                 if(confirmation){
  52
  53                         for(PolytomousKey key : keys){
  54                                 try {
  55                                     PolytomousKeyViewPart pkvp = (PolytomousKeyViewPart) NavigationUtil.getView(PolytomousKeyViewPart.ID, false);
  56                                         AbstractPostOperation operation = new DeleteOperation(
  57                                                         event.getCommand().getName(),
  58                                                         NavigationUtil.getUndoContext(), key,
  59                                                         pkvp,
  60                                                         pkvp,
  61                                                         pkvp);
  62                                         NavigationUtil.executeOperation(operation);
  63                                 } catch (NotDefinedException e) {
  64                                         MessagingUtils.error(getClass(), e);
  65                                 }
  66                         }
  67                 }
  68
  69                 return null;
  70         }
  71
  72 }