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.IEditorInput;
  21 import org.eclipse.ui.IEditorReference;
  22 import org.eclipse.ui.IWorkbenchPage;
  23 import org.eclipse.ui.PartInitException;
  24 import org.eclipse.ui.handlers.HandlerUtil;
  25
  26 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  27 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyEditorInput;
  28 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  29 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  30 import eu.etaxonomy.taxeditor.navigation.key.polytomous.PolytomousKeyViewPart;
  31 import eu.etaxonomy.taxeditor.navigation.key.polytomous.operation.DeleteOperation;
  32 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  33
  34 /**
  35  * @author n.hoffmann
  36  * @created Dec 3, 2010
  37  * @version 1.0
  38  */
  39 public class DeleteHandler extends AbstractHandler {
  40
  41     protected IWorkbenchPage activePage;
  42         /* (non-Javadoc)
  43          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  44          */
  45         @Override
  46         public Object execute(ExecutionEvent event) throws ExecutionException {
  47                 IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
  48                 activePage =  HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
  49                 List<PolytomousKey> keys = selection.toList();
  50
  51                 if(keys.isEmpty()){
  52                         return null;
  53                 }
  54                 for (PolytomousKey key : keys){
  55                     closeObsoleteEditor(key);
  56                 }
  57                 boolean confirmation = MessagingUtils.confirmDialog("Confirm deletaion", "Do you want to delete the selected key" + (keys.size() == 1 ? "" : "s") + "?");
  58
  59                 if(confirmation){
  60
  61                         for(PolytomousKey key : keys){
  62                                 try {
  63                                         AbstractPostOperation operation = new DeleteOperation(
  64                                                         event.getCommand().getName(),
  65                                                         NavigationUtil.getUndoContext(), key,
  66                                                         (PolytomousKeyViewPart) NavigationUtil.getView(PolytomousKeyViewPart.ID, false),
  67                                                         (PolytomousKeyViewPart) NavigationUtil.getView(PolytomousKeyViewPart.ID, false));
  68                                         NavigationUtil.executeOperation(operation);
  69                                 } catch (NotDefinedException e) {
  70                                         MessagingUtils.error(getClass(), e);
  71                                 }
  72                         }
  73                 }
  74
  75                 return null;
  76         }
  77
  78
  79         protected boolean closeObsoleteEditor(PolytomousKey key){
  80         boolean result = true;
  81         for (IEditorReference ref : activePage.getEditorReferences()) {
  82             try {
  83
  84                 IEditorInput input = ref.getEditorInput();
  85                 if (input instanceof PolytomousKeyEditorInput) {
  86                     PolytomousKey pKey = ((PolytomousKeyEditorInput)input).getKey();
  87                     //if node is a child of taxonNode then close the editor
  88                     if(key.equals(pKey)){
  89                     //if (taxonNode.equals(node)) {
  90                         result &= activePage.closeEditor(ref.getEditor(false), true);
  91
  92                     }
  93                 }
  94             } catch (PartInitException e) {
  95                 continue;
  96             }
  97         }
  98         return result;
  99     }
 100 }