eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/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.navigator.handler;
  12
  13 import java.util.HashSet;
  14 import java.util.Iterator;
  15 import java.util.Set;
  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.core.commands.common.NotDefinedException;
  21 import org.eclipse.jface.dialogs.MessageDialog;
  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.api.service.config.TaxonDeletionConfigurator;
  30 import eu.etaxonomy.cdm.api.service.config.TaxonNodeDeletionConfigurator;
  31 import eu.etaxonomy.cdm.api.service.config.TaxonNodeDeletionConfigurator.ChildHandling;
  32 import eu.etaxonomy.cdm.model.common.ITreeNode;
  33 import eu.etaxonomy.cdm.model.taxon.Classification;
  34 import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
  35 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  36 import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
  37 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  38 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  39 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;
  40 import eu.etaxonomy.taxeditor.navigation.navigator.operation.DeleteOperation;
  41 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  42 import eu.etaxonomy.taxeditor.ui.dialog.deleteConfigurator.DeleteConfiguratorDialog;
  43
  44 /**
  45  * <p>DeleteTreeNodeHandler class.</p>
  46  *
  47  * @author n.hoffmann
  48  * @created 06.04.2009
  49  * @version 1.0
  50  */
  51 public class DeleteHandler extends AbstractHandler{
  52
  53         protected IWorkbenchPage activePage;
  54         protected TaxonNavigator taxonNavigator;
  55
  56         /** {@inheritDoc} */
  57         @Override
  58     public Object execute(ExecutionEvent event) throws ExecutionException {
  59
  60                 activePage = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
  61
  62                 taxonNavigator = NavigationUtil.showNavigator();
  63
  64                 TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
  65
  66
  67                 String plural = selection.size() > 1 ? "s" : "";
  68                 // Prompt user for confirmation
  69
  70
  71
  72                 Iterator selectionIterator = selection.iterator();
  73                 Set<ITaxonTreeNode> treeNodes = new HashSet<ITaxonTreeNode>();
  74
  75                 while (selectionIterator.hasNext()){
  76                         Object object = selectionIterator.next();
  77                         if(object instanceof ITaxonTreeNode) {
  78                 treeNodes.add((ITaxonTreeNode) object);
  79             }
  80                 }
  81                 boolean allEditorsClosed = true;
  82                 for (ITaxonTreeNode treeNode : treeNodes){
  83                         if(treeNode instanceof TaxonNode) {
  84                                 allEditorsClosed &= closeObsoleteEditor((TaxonNode) treeNode);
  85                         }
  86                 }
  87                 AbstractPostOperation operation = null;
  88                 TaxonDeletionConfigurator config = new TaxonDeletionConfigurator();
  89                 if (treeNodes.size() == 1 ){
  90                         try {
  91
  92                                 ITaxonTreeNode treeNode = treeNodes.iterator().next();
  93                                 ITaxonTreeNode taxonNode =treeNode;
  94                                 TaxonNodeDeletionConfigurator configNodes = new TaxonNodeDeletionConfigurator();
  95                                 //configNodes.setDeleteTaxon(false);
  96                                 if (taxonNode instanceof Classification && taxonNode.hasChildNodes()){
  97                                         if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the classification? The tree has children, they will be deleted, too.")){
  98                                                 return null;
  99                                         }
 100                                 } else if (taxonNode instanceof Classification && !taxonNode.hasChildNodes()){
 101                                         if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the classification?")){
 102                                                 return null;
 103                                         }
 104                                 } else {
 105
 106                                         if (taxonNode.hasChildNodes()){
 107                         DeleteConfiguratorDialog dialog = new DeleteConfiguratorDialog(
 108                                 config,
 109                                 HandlerUtil.getActiveShell(event),
 110                                 "Confirm Deletion",
 111                                 null,
 112                                 "Do you really want to delete the selected node? It has childnodes, they will be deleted, too.",
 113                                 MessageDialog.WARNING, new String[] { "Delete all children",
 114                                         "Move children to parent node", "Skip" }, 0);
 115                                                 int result = dialog.open();
 116
 117                                                 if (result == 0){
 118                                                         //delete all children
 119                                                         configNodes.setChildHandling(ChildHandling.DELETE);
 120                                                         config.setTaxonNodeConfig(configNodes);
 121                                                 } else if (result == 1){
 122                                                         //move children
 123                                                         configNodes.setChildHandling(ChildHandling.MOVE_TO_PARENT);
 124                                                         config.setTaxonNodeConfig(configNodes);
 125                                                 } else if (result == 2){
 126                                                         //skip
 127                                                         return null;
 128
 129                                                 }
 130                                         }else{
 131                                                 if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(configNodes, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the selected node?")){
 132                                                         return null;
 133                                                 }
 134                                                 config.setTaxonNodeConfig(configNodes);
 135                                         }
 136                                 }
 137
 138                                 if (allEditorsClosed){
 139                                         /*if(! MessageDialog.openConfirm(HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the selected nodes?")){
 140                                                 return null;
 141                                         }*/
 142
 143                                                 operation = new DeleteOperation(event.getCommand().getName(),
 144                                                         NavigationUtil.getUndoContext(),
 145                                                                 taxonNode,
 146                                                                 config,
 147                                                                 taxonNavigator,
 148                                                                 taxonNavigator,
 149                                                                 taxonNavigator);
 150
 151                                                 NavigationUtil.executeOperation(operation);
 152
 153                                                 //}
 154                                 }
 155
 156
 157
 158                         } catch (NotDefinedException e) {
 159                                 MessagingUtils.warn(getClass(), "Command name not set");
 160                         }
 161                 } else{
 162                         try{
 163                                 if(!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), "Confirm Deletion", "Do you really want to delete the selected nodes?")){
 164                                         return null;
 165                                 }
 166                                 if (allEditorsClosed){
 167
 168                                         operation = new DeleteOperation(event.getCommand().getName(),
 169                                                 NavigationUtil.getUndoContext(),
 170                                                         treeNodes,
 171                                                         new TaxonDeletionConfigurator(),
 172                                                         taxonNavigator,
 173                                                         taxonNavigator,
 174                                                         taxonNavigator);
 175
 176                                         NavigationUtil.executeOperation(operation);
 177
 178                                 }
 179                         }catch (NotDefinedException e) {
 180                                 MessagingUtils.warn(getClass(), "Command name not set");
 181                         }
 182                 }
 183                 return null;
 184         }
 185
 186         protected boolean closeObsoleteEditor(TaxonNode taxonNode){
 187                 boolean result = true;
 188                 for (IEditorReference ref : activePage.getEditorReferences()) {
 189                         try {
 190                                 String treeIndex = ((ITreeNode)taxonNode).treeIndex();
 191
 192
 193                                 IEditorInput input = ref.getEditorInput();
 194                                 if (input instanceof TaxonEditorInput) {
 195                                         TaxonNode node = ((TaxonEditorInput) input).getTaxonNode();
 196                                         //if node is a child of taxonNode then close the editor
 197                                         if( ((ITreeNode) node).treeIndex().startsWith(treeIndex)){
 198                                         //if (taxonNode.equals(node)) {
 199                                                 result &= activePage.closeEditor(ref.getEditor(false), true);
 200
 201                                         }
 202                                 }
 203                         } catch (PartInitException e) {
 204                                 continue;
 205                         }
 206                 }
 207                 return result;
 208         }
 209 }