DropDownToolBarHandler.java

/*****************************************************************************
 * Copyright (c) 2010 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.uml.diagram.menu.actions.handlers;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;


/**
 * 
 * This handler can be used to do an action when the user clicks on the corresponding menu in the toolbar.
 * This class is necessary to have pulldown menu in the toolbar.
 * Currently, nothing is done by this handler.
 * 
 * 
 */

public class DropDownToolBarHandler extends AbstractHandler {

	/**
	 * Execute {@link #lastAction} if this action is not <code>null</code>
	 * 
	 * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
	 * 
	 * @param event
	 * @return
	 * @throws ExecutionException
	 */
	public Object execute(ExecutionEvent event) throws ExecutionException {

		return null;
	}

}