1 /**
2 * This file Copyright (c) 2013-2018 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.mediaeditor.event;
35
36 import info.magnolia.event.Event;
37 import info.magnolia.event.EventHandler;
38 import info.magnolia.ui.mediaeditor.MediaEditorPresenter;
39
40 /**
41 * Fired by the UI-fields, instructs the {@link MediaEditorPresenter}
42 * to manage transaction (rollback, commitState, etc).
43 */
44 public class MediaEditorInternalEvent implements Event<MediaEditorInternalEvent.Handler> {
45
46 /**
47 * Type of possible action to be performed in a handler of event.
48 */
49 public static enum EventType {
50 APPLY,
51 SUBMIT,
52 CANCEL_LAST,
53 CANCEL_ALL;
54 };
55
56 /**
57 * Handler.
58 */
59 public interface Handler extends EventHandler {
60
61 void onSubmit(MediaEditorInternalEvent e);
62
63 void onLastActionCancelled(MediaEditorInternalEvent e);
64
65 void onLastActionApplied(MediaEditorInternalEvent e);
66
67 void onCancelAll(MediaEditorInternalEvent e);
68 }
69
70 private EventType type;
71
72 public MediaEditorInternalEvent(EventType type) {
73 this.type = type;
74 }
75
76 public EventType getType() {
77 return type;
78 }
79
80 @Override
81 public void dispatch(Handler handler) {
82 switch (type) {
83 case SUBMIT:
84 handler.onSubmit(this);
85 break;
86 case CANCEL_LAST:
87 handler.onLastActionCancelled(this);
88 break;
89 case APPLY:
90 handler.onLastActionApplied(this);
91 break;
92 case CANCEL_ALL:
93 handler.onCancelAll(this);
94 break;
95 default:
96 break;
97 }
98 }
99 }