/*******************************************************************************
* Copyright (c) 2009 Siemens AG 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:
* Kai Tödter - initial implementation
******************************************************************************/
package at.bestsolution.efxclipse.runtime.demo.contacts.handlers;
import at.bestsolution.efxclipse.runtime.demo.contacts.model.ContactsManager;
import javax.inject.Inject;
import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.emf.common.command.CommandStack;
@SuppressWarnings("restriction")
public class UndoHandler {
@Inject
ContactsManager contactsManager;
@CanExecute
public boolean canUndo() {
CommandStack commandStack = contactsManager.getEditingDomain().getCommandStack();
return commandStack.canUndo();
}
@Execute
public void undo() {
CommandStack commandStack = contactsManager.getEditingDomain().getCommandStack();
if (commandStack.canUndo())
commandStack.undo();
}
}