eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/handler/MoveTaxonHandler.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.navigation.navigator.handler;
  11
  12 import java.util.ArrayList;
  13 import java.util.HashSet;
  14 import java.util.Iterator;
  15 import java.util.List;
  16 import java.util.Set;
  17 import java.util.UUID;
  18
  19 import org.eclipse.core.commands.AbstractHandler;
  20 import org.eclipse.core.commands.ExecutionEvent;
  21 import org.eclipse.core.commands.ExecutionException;
  22 import org.eclipse.jface.dialogs.MessageDialog;
  23 import org.eclipse.jface.viewers.TreeSelection;
  24 import org.eclipse.ui.IWorkbenchPage;
  25 import org.eclipse.ui.handlers.HandlerUtil;
  26
  27 import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
  28 import eu.etaxonomy.cdm.model.common.CdmBase;
  29 import eu.etaxonomy.cdm.model.taxon.Classification;
  30 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  31 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  32 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;
  33 import eu.etaxonomy.taxeditor.navigation.navigator.TreeNodeDropAdapter.MovingType;
  34 import eu.etaxonomy.taxeditor.navigation.navigator.operation.MoveTaxonOperation;
  35 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  36 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  37 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  38 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
  39
  40 /**
  41  * <p>MoveTaxonHandler class.</p>
  42  *
  43  * @author n.hoffmann
  44  * @created 01.04.2009
  45  * @version 1.0
  46  */
  47 public class MoveTaxonHandler extends AbstractHandler implements IPostOperationEnabled {
  48
  49         private TaxonNode parentTaxonNode;
  50         protected IWorkbenchPage activePage;
  51
  52         /** {@inheritDoc} */
  53         @Override
  54     public Object execute(ExecutionEvent event) throws ExecutionException {
  55                 activePage = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
  56                 TaxonNavigator taxonNavigator = (TaxonNavigator)NavigationUtil.showView(TaxonNavigator.ID);
  57
  58                 TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
  59
  60                 Iterator<?> selectionIterator = selection.iterator();
  61                 Set<TaxonNode> taxonNodes = new HashSet<TaxonNode>();
  62                 TaxonNode taxonNode= null;
  63                 Set<UUID> taxonNodeUUIDs = new HashSet<UUID>();
  64                 // do not show the current selection
  65                 List<UUID> excludeTaxa = new ArrayList<UUID>();
  66
  67                 //if (selection.size() == 1){
  68
  69                 while (selectionIterator.hasNext()){
  70                         Object object = selectionIterator.next();
  71                         if(object instanceof TaxonNode){
  72                             taxonNode = HibernateProxyHelper.deproxy(object,TaxonNode.class);
  73                                 taxonNodes.add(taxonNode);
  74                                 taxonNodeUUIDs.add(taxonNode.getUuid());
  75                                 excludeTaxa.add(taxonNode.getTaxon().getUuid());
  76                         }
  77                 }
  78                 /*} else{
  79                         if( MessageDialog.openConfirm(HandlerUtil.getActiveShell(event), "Moving taxon", "The operation move accepted taxon to other parent is available only for a single taxon.")){
  80                                 return null;
  81                         }
  82                 }*/
  83
  84
  85 //              TaxonNode taxonNode = (TaxonNode) selection.getFirstElement();
  86                 if (taxonNodes.size() >= 1){
  87                     Classification classification = taxonNodes.iterator().next().getClassification();
  88                         MovingType moveToNewParent = MovingType.CHILD;
  89                         if (PreferencesUtil.getSortNodesNaturally()){
  90                                 if(!MessageDialog.openQuestion(null, "Target node", "The choosen target node should be the parent?")){
  91                                         moveToNewParent = MovingType.BEHIND;
  92                                 }
  93                                 parentTaxonNode = TaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event), taxonNavigator.getConversationHolder(), "Choose the taxon above the moved taxon.", excludeTaxa, null, classification);
  94                         }else{
  95                                 parentTaxonNode = TaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event), taxonNavigator.getConversationHolder(), "Choose new parent", excludeTaxa, null, classification);
  96                         }
  97                         if(parentTaxonNode != null){
  98                                 if(NavigationUtil.isDirty(parentTaxonNode)){
  99                                         MessageDialog.openWarning(HandlerUtil.getActiveShell(event), "Unsaved Parent Taxon", "There are unsaved " +
 100                                                         "changes in the parent taxon. Please save first.");
 101                                         return null;
 102                                 }
 103
 104
 105                                 AbstractPostOperation<?> operation = new MoveTaxonOperation
 106                                                 ("Move taxon to new parent", NavigationUtil.getUndoContext(),
 107                                                                 taxonNodeUUIDs, parentTaxonNode, taxonNavigator, taxonNavigator, moveToNewParent); //$NON-NLS-1$
 108                                 NavigationUtil.executeOperation(operation);
 109                                 taxonNavigator.refresh();
 110
 111                         }
 112                 }
 113                 return null;
 114         }
 115
 116         /** {@inheritDoc} */
 117         @Override
 118     public boolean postOperation(CdmBase objectAffectedByOperation) {
 119                 return true;
 120         }
 121
 122         /**
 123          * <p>onComplete</p>
 124          *
 125          * @return a boolean.
 126          */
 127         @Override
 128     public boolean onComplete() {
 129                 return false;
 130         }
 131
 132 }