plugins/org.eclipse.bpel.ui.noEmbeddedEditors/src/org/eclipse/bpel/ui/editparts/policies/OutlineTreeEditPolicy.java

/*******************************************************************************
 * Copyright (c) 2005, 2012 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.bpel.ui.editparts.policies;

import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gef.editpolicies.AbstractEditPolicy;

public class OutlineTreeEditPolicy extends AbstractEditPolicy {
	
	@Override
	public Command getCommand(Request req) {
		if (REQ_MOVE.equals(req.getType()))
			return getMoveCommand(req);
		return null;
	}

	protected Command getMoveCommand(Request req) {
		EditPart parent = getHost().getParent();
		if (parent != null) {
			req.setType(REQ_MOVE_CHILDREN);
			Command cmd = parent.getCommand(req);
			req.setType(REQ_MOVE);
			return cmd;
		}
		return UnexecutableCommand.INSTANCE;
	}
}