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