blob: f45b7c20ef4cb7dfb0da690e3a3e537121b19ccf (
plain) (
blame)
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
|
/*****************************************************************************
* Copyright (c) 2011 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) Vincent.Lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.emf.compare.ui.handlers;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
public class UndoHandler extends AbstractEMFCompareHandler {
public UndoHandler() {
int d = 0;
d++;
}
public Object execute(final ExecutionEvent event) throws ExecutionException {
getEditingDomain().getCommandStack().undo();
return CommandResult.newOKCommandResult();
}
@Override
public boolean isEnabled() {
final boolean enabled = super.isEnabled();
if(enabled) {
final boolean state = getEditingDomain().getCommandStack().canUndo();
System.out.println("undo state = " + state);
return getEditingDomain().getCommandStack().canUndo();
}
return false;
}
}
|
