taxeditor-navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/handler/DeleteTaxonNodeHandler.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.handler;
  12
  13 import org.apache.log4j.Logger;
  14 import org.eclipse.core.commands.AbstractHandler;
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.ExecutionException;
  17 import org.eclipse.core.commands.IHandler;
  18 import org.eclipse.core.commands.common.NotDefinedException;
  19 import org.eclipse.core.commands.operations.IUndoableOperation;
  20 import org.eclipse.core.runtime.IStatus;
  21 import org.eclipse.core.runtime.Status;
  22 import org.eclipse.jface.viewers.TreeSelection;
  23 import org.eclipse.ui.IEditorInput;
  24 import org.eclipse.ui.IEditorReference;
  25 import org.eclipse.ui.IWorkbenchPage;
  26 import org.eclipse.ui.PartInitException;
  27 import org.eclipse.ui.handlers.HandlerUtil;
  28
  29 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  30 import eu.etaxonomy.cdm.model.taxon.TaxonomicTree;
  31 import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
  32 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  33 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;
  34 import eu.etaxonomy.taxeditor.operations.DeleteTaxonNodeOperation;
  35 import eu.etaxonomy.taxeditor.operations.DeleteTaxonomicTreeOperation;
  36
  37 /**
  38  * @author n.hoffmann
  39  * @created 06.04.2009
  40  * @version 1.0
  41  */
  42 public class DeleteTaxonNodeHandler extends AbstractHandler implements IHandler{
  43         private static final Logger logger = Logger
  44                         .getLogger(DeleteTaxonNodeHandler.class);
  45
  46         public Object execute(ExecutionEvent event) throws ExecutionException {
  47
  48                 TaxonNavigator taxonNavigator;
  49                 try {
  50                         taxonNavigator = (TaxonNavigator) NavigationUtil.getView(TaxonNavigator.ID);
  51                 } catch (PartInitException e) {
  52                         logger.error(e);
  53                         throw new RuntimeException(e);
  54                 }
  55
  56                 // TODO handle delete on multiple nodes
  57
  58                 TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
  59                 Object treeOrNode = selection.getFirstElement();
  60
  61                 IUndoableOperation operation = null;
  62                 try {
  63                         if(treeOrNode instanceof TaxonomicTree){
  64                                 operation = new DeleteTaxonomicTreeOperation(event.getCommand().getName(),
  65                                                 NavigationUtil.getUndoContext(), (TaxonomicTree) treeOrNode, taxonNavigator, taxonNavigator);
  66                         }else if(treeOrNode instanceof TaxonNode){
  67
  68                                 operation = new DeleteTaxonNodeOperation(event.getCommand().getName(),
  69                                                 NavigationUtil.getUndoContext(), (TaxonNode) treeOrNode, taxonNavigator, taxonNavigator);
  70
  71                         }
  72                         IStatus status = NavigationUtil.executeOperation(operation);
  73
  74                         // Close any open taxon node editors
  75                         if (status == Status.OK_STATUS && treeOrNode instanceof TaxonNode) {
  76                                 IWorkbenchPage activePage = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
  77                                 for (IEditorReference ref : activePage.getEditorReferences()) {
  78                                         try {
  79                                                 IEditorInput input = ref.getEditorInput();
  80                                                 if (input instanceof TaxonEditorInput) {
  81                                                         TaxonNode node = ((TaxonEditorInput) input).getTaxonNode();
  82                                                         if (treeOrNode.equals(node)) {
  83                                                                 activePage.closeEditor(ref.getEditor(false), false);
  84                                                         }
  85                                                 }
  86                                         } catch (PartInitException e) {
  87                                                 continue;
  88                                         }
  89                                 }
  90                         }
  91                 } catch (NotDefinedException e) {
  92                         logger.warn("Command name not set");
  93                 }
  94                 return null;
  95         }
  96 }