d632a6bcbcbfa7b764a39958b26b5329dad74575
[taxeditor.git] / 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.IHandler;
21 import org.eclipse.core.commands.common.NotDefinedException;
22 import org.eclipse.jface.dialogs.MessageDialog;
23 import org.eclipse.jface.viewers.TreeSelection;
24 import org.eclipse.ui.IEditorInput;
25 import org.eclipse.ui.IEditorReference;
26 import org.eclipse.ui.IWorkbenchPage;
27 import org.eclipse.ui.PartInitException;
28 import org.eclipse.ui.handlers.HandlerUtil;
29
30 import eu.etaxonomy.cdm.api.service.config.TaxonDeletionConfigurator;
31 import eu.etaxonomy.cdm.model.common.ITreeNode;
32 import eu.etaxonomy.cdm.model.taxon.Classification;
33 import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
34 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
35 import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
36 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
37 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;
38 import eu.etaxonomy.taxeditor.navigation.navigator.operation.DeleteOperation;
39 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
40
41 /**
42 * <p>DeleteTreeNodeHandler class.</p>
43 *
44 * @author n.hoffmann
45 * @created 06.04.2009
46 * @version 1.0
47 */
48 public class DeleteHandler extends AbstractHandler implements IHandler{
49
50 private IWorkbenchPage activePage;
51 private TaxonNavigator taxonNavigator;
52
53 /** {@inheritDoc} */
54 @Override
55 public Object execute(ExecutionEvent event) throws ExecutionException {
56
57 activePage = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
58
59 taxonNavigator = NavigationUtil.showNavigator();
60
61 TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
62
63 String plural = selection.size() > 1 ? "s" : "";
64 // Prompt user for confirmation
65 if(! MessageDialog.openConfirm(HandlerUtil.getActiveShell(event), "Confirm Deletion", "Are you sure you want to delete the selected node" + plural +"?")){
66 return null;
67 }
68
69 Iterator selectionIterator = selection.iterator();
70 Set<ITaxonTreeNode> treeNodes = new HashSet<ITaxonTreeNode>();
71
72 while (selectionIterator.hasNext()){
73 Object object = selectionIterator.next();
74 if(object instanceof ITaxonTreeNode) {
75 treeNodes.add((ITaxonTreeNode) object);
76 }
77 }
78 boolean allEditorsClosed = true;
79 for (ITaxonTreeNode treeNode : treeNodes){
80 if(treeNode instanceof TaxonNode) {
81 allEditorsClosed &= closeObsoleteEditor((TaxonNode) treeNode);
82 }
83 }
84 AbstractPostOperation operation = null;
85 if (treeNodes.size() == 1 ){
86 try {
87
88
89 if (allEditorsClosed){
90 ITaxonTreeNode treeNode = treeNodes.iterator().next();
91 /*if (treeNode instanceof Classification){
92 operation = new DeleteOperation(
93 event.getCommand().getName(), NavigationUtil.getUndoContext(),
94 treeNodes, new TaxonDeletionConfigurator(), taxonNavigator, taxonNavigator);
95
96 NavigationUtil.executeOperation(operation);
97 }else {*/
98 ITaxonTreeNode taxonNode =treeNode;
99 operation = new DeleteOperation(
100 event.getCommand().getName(), NavigationUtil.getUndoContext(),
101 taxonNode, new TaxonDeletionConfigurator(), taxonNavigator, taxonNavigator);
102
103 NavigationUtil.executeOperation(operation);
104 //}
105 }
106
107
108
109 } catch (NotDefinedException e) {
110 NavigationUtil.warn(getClass(), "Command name not set");
111 }
112 } else{
113 try{
114 if (allEditorsClosed){
115 operation = new DeleteOperation(
116 event.getCommand().getName(), NavigationUtil.getUndoContext(),
117 treeNodes, new TaxonDeletionConfigurator(), taxonNavigator, taxonNavigator);
118
119 NavigationUtil.executeOperation(operation);
120 }
121 }catch (NotDefinedException e) {
122 NavigationUtil.warn(getClass(), "Command name not set");
123 }
124 }
125 return null;
126 }
127
128 private boolean closeObsoleteEditor(TaxonNode taxonNode){
129 boolean result = true;
130 for (IEditorReference ref : activePage.getEditorReferences()) {
131 try {
132 String treeIndex = ((ITreeNode)taxonNode).treeIndex();
133
134
135 IEditorInput input = ref.getEditorInput();
136 if (input instanceof TaxonEditorInput) {
137 TaxonNode node = ((TaxonEditorInput) input).getTaxonNode();
138 //if node is a child of taxonNode then close the editor
139 if( ((ITreeNode) node).treeIndex().startsWith(treeIndex)){
140 //if (taxonNode.equals(node)) {
141 result &= activePage.closeEditor(ref.getEditor(false), true);
142
143 }
144 }
145 } catch (PartInitException e) {
146 continue;
147 }
148 }
149 return result;
150 }
151 }