1 /**
2 * This file Copyright (c) 2014-2018 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.ui.workbench.tree;
35
36 import com.vaadin.event.dd.DropHandler;
37 import com.vaadin.v7.data.Item;
38
39 /**
40 * This interface marks class as providing implementation of methods necessary to move items in the container.
41 * WARNING: This interface might be refactored or moved to different package in the future without prior notice. Use at your own risk.
42 */
43 public interface MoveHandler {
44
45 /**
46 * Performs move of the source node or property into target node or next to target node depending on the value of MoveLocation.
47 * This method will persist move by calling session.save() explicitly. And will return true/false depending on whether move was successful or not.
48 */
49 boolean moveItem(Item source, Item target, MoveLocation location);
50
51 DropHandler asDropHandler();
52 }