1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*****************************************************************************
* Copyright (c) 2013, 2016 Cedric Dumoulin, Christian W. Damus, and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Cedric Dumoulin Cedric.dumoulin@lifl.fr - Initial API and implementation
* Christian W. Damus - bug 485220
*
*****************************************************************************/
package org.eclipse.papyrus.commands;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.transaction.RecordingCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.papyrus.commands.messages.Messages;
import org.eclipse.papyrus.infra.core.sasheditor.editor.ISashWindowsContainer;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.ui.util.ServiceUtilsForIEvaluationContext;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorPart;
/**
* This handler allows to rename a gmf diagram.
* The handler is activated when the current selection denote a gmf diagram.
*
* <br>
* There is another RenameHandler in Papyrus (for modelexplorer):
* /org.eclipse.papyrus.infra.gmfdiag.modelexplorer/src/org/eclipse/papyrus/infra/gmfdiag/modelexplorer/handlers/RenameDiagramHandler.java
*
* @author cedric dumoulin
*
*/
public class RenameDiagramHandler extends AbstractHandler {
/**
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
* @param event
* @return
* @throws ExecutionException
*
*/
public Object execute(ExecutionEvent event) throws ExecutionException {
executeTransaction(event);
return null;
}
/**
* Execute as transaction
*
* @param event
*/
private void executeTransaction(ExecutionEvent event) {
// Get requested objects
final Diagram notationDiagramHelper;
TransactionalEditingDomain editingDomain;
try {
IEvaluationContext context = getIEvaluationContext(event);
notationDiagramHelper = lookupNotationDiagramChecked(context);
editingDomain = lookupTransactionalEditingDomain(context);
} catch (NotFoundException e) {
// silently fails
return;
} catch (ServiceException e) {
// silently fails
return;
}
// Open the dialog to ask the new name
String currentName = notationDiagramHelper.getName();
String newName = null;
InputDialog dialog = new InputDialog(Display.getCurrent().getActiveShell(), Messages.RenameDiagramHandler_RenameAnExistingDiagram, Messages.RenameDiagramHandler_NewName, currentName, null);
if (dialog.open() == Window.OK) {
newName = dialog.getValue();
if (newName == null || newName.length() <= 0) {
return;
}
} else {
// cancelled
return;
}
final String name = newName;
Command cmd = new RecordingCommand(editingDomain, getCommandName()) {
@Override
protected void doExecute() {
// Rename the diagram !
notationDiagramHelper.setName(name);
}
};
editingDomain.getCommandStack().execute(cmd);
}
/**
* Get the name used in the {@link RecordingCommand}. This name will be visible in
* undo/redo.
*
* @return The command name to show.
*/
public String getCommandName() {
return Messages.RenameDiagramHandler_RenameDiagram;
}
protected IEvaluationContext getIEvaluationContext(ExecutionEvent event) throws NotFoundException {
try {
return (IEvaluationContext) event.getApplicationContext();
} catch (ClassCastException e) {
throw new NotFoundException("IEvaluationContext can't be found."); //$NON-NLS-1$
}
}
// /**
// *
// * @return
// * @throws NotFoundException
// */
// protected LayerStackMngr lookupLayerStackMngrChecked() throws NotFoundException {
//
// return lookupLayersViewChecked().getLayerStackMngrChecked();
//
// }
/**
* Get the notation diagram helper.
* This method can be used from {@link #execute(ExecutionEvent)} or {@link #setEnabled(Object)}.
*
* @return The
* @throws NotFoundException
* @throws ServiceException
*/
protected Diagram lookupNotationDiagramChecked(IEvaluationContext context) throws NotFoundException, ServiceException {
// Get page from the event !
IEditorPart editor = ServiceUtilsForIEvaluationContext.getInstance().getService(ISashWindowsContainer.class, context).getActiveEditor();
if (!(editor instanceof DiagramDocumentEditor)) {
throw new NotFoundException("Selected editor do not contains Diagram"); //$NON-NLS-1$
}
DiagramDocumentEditor diagramEditor = (DiagramDocumentEditor) editor;
Diagram diagram = diagramEditor.getDiagram();
if (diagram == null) {
throw new NotFoundException("Selected editor do not contains Diagram"); //$NON-NLS-1$
}
// Return a new instance of the Helper
return diagram;
}
/**
* Try to lookup the TransactionalEditingDomain.
*
* @return
* @throws ServiceException
* If the Editing domain can't be found.
*/
protected TransactionalEditingDomain lookupTransactionalEditingDomain(IEvaluationContext context) throws ServiceException {
// Get page from the event !
// IWorkbenchPage page = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
return ServiceUtilsForIEvaluationContext.getInstance().getTransactionalEditingDomain(context);
}
/**
* Called by framework. Need to set the enabled flag.
*
* @see org.eclipse.core.commands.AbstractHandler#setEnabled(java.lang.Object)
*
* @param evaluationContext
*/
@Override
public void setEnabled(Object evaluationContext) {
if (!(evaluationContext instanceof IEvaluationContext)) {
setBaseEnabled(false);
return;
}
IEvaluationContext context = (IEvaluationContext) evaluationContext;
try {
// Try to get the diagram
lookupNotationDiagramChecked(context);
// ok, we got it.
setBaseEnabled(true);
} catch (ServiceException e) {
// Can't find ServiceRegistry: disable
setBaseEnabled(false);
} catch (NotFoundException e) {
// Can't find ServiceRegistry: disable
setBaseEnabled(false);
}
}
}
|
