1 /**
2 * This file Copyright (c) 2012-2018 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.framework.message;
35
36 import info.magnolia.event.EventBus;
37 import info.magnolia.ui.api.event.AdmincentralEventBus;
38 import info.magnolia.ui.api.message.Message;
39 import info.magnolia.ui.framework.message.MessagesManager.MessageListener;
40
41 import javax.inject.Inject;
42 import javax.inject.Named;
43
44 import com.vaadin.server.VaadinSession;
45 import com.vaadin.ui.UI;
46
47 /**
48 * Dispatches events on an {@link EventBus} for a certain user.
49 */
50 public class LocalMessageDispatcher implements MessageListener {
51
52 private final UI ui;
53 private EventBus eventBus;
54
55 @Inject
56 public LocalMessageDispatcher(@Named(AdmincentralEventBus.NAME) final EventBus eventBus, UI ui) {
57 this.eventBus = eventBus;
58 this.ui = ui;
59 }
60
61 /**
62 * @deprecated since 5.5.5 - use {@link #LocalMessageDispatcher(EventBus, UI)} instead.
63 */
64 @Deprecated
65 public LocalMessageDispatcher(final EventBus eventBus, VaadinSession vaadinSession) {
66 this(eventBus, UI.getCurrent());
67 }
68
69 @Override
70 public void messageSent(final Message message) {
71 if (ui.isAttached()) {
72 ui.access(() -> eventBus.fireEvent(new MessageEvent(message, false)));
73 }
74 }
75
76 @Override
77 public void messageCleared(final Message message) {
78 if (ui.isAttached()) {
79 ui.access(() -> eventBus.fireEvent(new MessageEvent(message, true)));
80 }
81 }
82
83 @Override
84 public void messageRemoved(final String id) {
85 if (ui.isAttached()) {
86 ui.access(() -> eventBus.fireEvent(new MessageEvent(id, true)));
87 }
88 }
89 }