|
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.editor.key.polytomous.e4.handler;
|
|
11
|
|
|
12
|
import javax.inject.Named;
|
|
13
|
|
|
14
|
import org.eclipse.core.commands.ExecutionEvent;
|
|
15
|
import org.eclipse.core.commands.common.NotDefinedException;
|
|
16
|
import org.eclipse.core.commands.operations.AbstractOperation;
|
|
17
|
import org.eclipse.core.commands.operations.IUndoContext;
|
|
18
|
import org.eclipse.core.runtime.IStatus;
|
|
19
|
import org.eclipse.core.runtime.Status;
|
|
20
|
import org.eclipse.e4.core.di.annotations.CanExecute;
|
|
21
|
import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
|
|
22
|
import org.eclipse.e4.ui.services.IServiceConstants;
|
|
23
|
import org.eclipse.jface.dialogs.MessageDialog;
|
|
24
|
import org.eclipse.jface.viewers.IStructuredSelection;
|
|
25
|
import org.eclipse.ui.IEditorPart;
|
|
26
|
import org.eclipse.ui.handlers.HandlerUtil;
|
|
27
|
|
|
28
|
import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
|
|
29
|
import eu.etaxonomy.taxeditor.editor.EditorUtil;
|
|
30
|
import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
|
|
31
|
import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
|
|
32
|
import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyEditorLabels;
|
|
33
|
import eu.etaxonomy.taxeditor.editor.key.polytomous.handler.AbstractPolytomousKeyNodeHandler;
|
|
34
|
import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.DeleteNodeOperation;
|
|
35
|
import eu.etaxonomy.taxeditor.editor.l10n.Messages;
|
|
36
|
import eu.etaxonomy.taxeditor.model.AbstractUtility;
|
|
37
|
import eu.etaxonomy.taxeditor.model.MessagingUtils;
|
|
38
|
import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
|
|
39
|
|
|
40
|
/**
|
|
41
|
* @author n.hoffmann
|
|
42
|
* @created Dec 6, 2010
|
|
43
|
* @version 1.0
|
|
44
|
*/
|
|
45
|
public class DeleteNodeHandlerE4 extends AbstractPolytomousKeyNodeHandler {
|
|
46
|
|
|
47
|
|
|
48
|
private static final String DO_YOU_REALLY_WANT_TO_DELETE_THE_NODE_THIS_OPERATION_IS_NOT_REVERSABLE = Messages.DeleteNodeHandler_REALLY_DELETE;
|
|
49
|
private static final String CONFIRM_DELETION_OF_CHILDREN = Messages.DeleteNodeHandler_CONFIRM_DELETE;
|
|
50
|
private static final String NO = Messages.DeleteNodeHandler_NO;
|
|
51
|
private static final String CANCEL = Messages.DeleteNodeHandler_CANCEL;
|
|
52
|
private static final String YES = Messages.DeleteNodeHandler_YES;
|
|
53
|
PolytomousKeyNode nodeToBeDeleted;
|
|
54
|
boolean deleteChildren;
|
|
55
|
/**
|
|
56
|
* @param label
|
|
57
|
*/
|
|
58
|
public DeleteNodeHandlerE4(String label) {
|
|
59
|
super(label);
|
|
60
|
|
|
61
|
}
|
|
62
|
|
|
63
|
|
|
64
|
|
|
65
|
public DeleteNodeHandlerE4() {
|
|
66
|
super(PolytomousKeyEditorLabels.DELETE_NODE_POLYTOMOUS_KEY_NODE_LABEL);
|
|
67
|
}
|
|
68
|
|
|
69
|
/**
|
|
70
|
* {@inheritDoc}
|
|
71
|
*/
|
|
72
|
@Override
|
|
73
|
public IStatus allowOperations(ExecutionEvent event) {
|
|
74
|
IEditorPart editor = HandlerUtil.getActiveEditor(event);
|
|
75
|
IStructuredSelection selection = (IStructuredSelection) HandlerUtil
|
|
76
|
.getCurrentSelection(event);
|
|
77
|
AbstractPostOperation operation;
|
|
78
|
if (editor instanceof KeyEditor) {
|
|
79
|
editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
|
|
80
|
.getActiveEditor();
|
|
81
|
}
|
|
82
|
|
|
83
|
|
|
84
|
if (selection.getFirstElement() instanceof PolytomousKeyNode) {
|
|
85
|
try {
|
|
86
|
String label = event.getCommand().getName();
|
|
87
|
IUndoContext undoContext = EditorUtil.getUndoContext();
|
|
88
|
PolytomousKeyNode node = (PolytomousKeyNode)selection.getFirstElement();
|
|
89
|
nodeToBeDeleted = node;
|
|
90
|
MessageDialog dialog;
|
|
91
|
if (node.getChildren().size()>0){
|
|
92
|
String[] buttonLables = {YES, NO,CANCEL};
|
|
93
|
dialog = new MessageDialog(null, CONFIRM_DELETION_OF_CHILDREN, null, DO_YOU_REALLY_WANT_TO_DELETE_THE_NODE_THIS_OPERATION_IS_NOT_REVERSABLE+Messages.DeleteNodeHandler_NODE_HAS_CHILDREN, MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 0);
|
|
94
|
int returnCode = dialog.open();
|
|
95
|
|
|
96
|
if (returnCode == 0){
|
|
97
|
deleteChildren = false;
|
|
98
|
} else if (returnCode == 1){
|
|
99
|
deleteChildren = true;
|
|
100
|
} else{
|
|
101
|
return new Status(IStatus.CANCEL, "unknown", //$NON-NLS-1$
|
|
102
|
null);
|
|
103
|
}
|
|
104
|
|
|
105
|
|
|
106
|
}else{
|
|
107
|
String[] buttonLables = {YES, CANCEL};
|
|
108
|
dialog = new MessageDialog(null, CONFIRM_DELETION_OF_CHILDREN, null, DO_YOU_REALLY_WANT_TO_DELETE_THE_NODE_THIS_OPERATION_IS_NOT_REVERSABLE, MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 1);
|
|
109
|
int returnCode = dialog.open();
|
|
110
|
|
|
111
|
if (returnCode == 0){
|
|
112
|
deleteChildren = false;
|
|
113
|
} else if (returnCode == 1){
|
|
114
|
return new Status(IStatus.CANCEL, "unknown", //$NON-NLS-1$
|
|
115
|
null);
|
|
116
|
}
|
|
117
|
}
|
|
118
|
|
|
119
|
|
|
120
|
|
|
121
|
|
|
122
|
} catch (NotDefinedException e) {
|
|
123
|
MessagingUtils.warn(getClass(), "Command name not set."); //$NON-NLS-1$
|
|
124
|
}
|
|
125
|
} else {
|
|
126
|
MessageDialog.openInformation(
|
|
127
|
AbstractUtility.getShell(),
|
|
128
|
PolytomousKeyEditorLabels.NO_KEY_NODE_SELECTED,
|
|
129
|
PolytomousKeyEditorLabels.NO_KEY_NODE_FOR_INSERT_NODE_SELECTED_MESSAGE
|
|
130
|
);
|
|
131
|
}
|
|
132
|
|
|
133
|
return Status.OK_STATUS;
|
|
134
|
}
|
|
135
|
|
|
136
|
/**
|
|
137
|
* {@inheritDoc}
|
|
138
|
*/
|
|
139
|
@Override
|
|
140
|
public AbstractOperation prepareOperation(ExecutionEvent event) {
|
|
141
|
IUndoContext undoContext = EditorUtil.getUndoContext();
|
|
142
|
String label = ""; //$NON-NLS-1$
|
|
143
|
IEditorPart editor = HandlerUtil.getActiveEditor(event);
|
|
144
|
if (editor.isDirty()){
|
|
145
|
boolean proceed = MessageDialog.openQuestion(null,
|
|
146
|
Messages.DeleteNodeHandler_SAVE_CHANGES_TITLE, Messages.DeleteNodeHandler_SAVE_CHANGES_MESSAGE);
|
|
147
|
if (!proceed) {
|
|
148
|
return null;
|
|
149
|
}else{
|
|
150
|
editor.doSave(EditorUtil.getMonitor());
|
|
151
|
}
|
|
152
|
}
|
|
153
|
|
|
154
|
try {
|
|
155
|
label = event.getCommand().getName();
|
|
156
|
} catch (NotDefinedException e) {
|
|
157
|
MessagingUtils.warn(getClass(), "Command name not set."); //$NON-NLS-1$
|
|
158
|
}
|
|
159
|
DeleteNodeOperation operation ;
|
|
160
|
if (deleteChildren){
|
|
161
|
operation = new DeleteNodeOperation(label, undoContext, nodeToBeDeleted, editorPage, true);
|
|
162
|
}else{
|
|
163
|
operation = new DeleteNodeOperation(label, undoContext, nodeToBeDeleted, editorPage, false);
|
|
164
|
}
|
|
165
|
|
|
166
|
return operation;
|
|
167
|
}
|
|
168
|
|
|
169
|
/**
|
|
170
|
* {@inheritDoc}
|
|
171
|
*/
|
|
172
|
@Override
|
|
173
|
public void onComplete() {
|
|
174
|
// TODO Auto-generated method stub
|
|
175
|
|
|
176
|
}
|
|
177
|
|
|
178
|
@CanExecute
|
|
179
|
public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION)Object selection,
|
|
180
|
MHandledMenuItem menuItem){
|
|
181
|
boolean canExecute = false;
|
|
182
|
canExecute = selection instanceof PolytomousKeyNode;
|
|
183
|
menuItem.setVisible(canExecute);
|
|
184
|
return canExecute;
|
|
185
|
}
|
|
186
|
|
|
187
|
}
|