1 /**
2 * This file Copyright (c) 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.admincentral.apps.notifications;
35
36 import info.magnolia.context.Context;
37 import info.magnolia.ui.api.ioc.UiContextScoped;
38 import info.magnolia.ui.api.message.Message;
39 import info.magnolia.ui.framework.ioc.Destructible;
40 import info.magnolia.ui.framework.message.MessagesManager;
41 import info.magnolia.ui.observation.LocalManualDatasourceObservation;
42
43 import javax.inject.Inject;
44
45 import com.vaadin.ui.UI;
46
47 /**
48 * Notification observation utility wrapper to be used within UI framework.
49 */
50 @UiContextScoped
51 public class NotificationDataSourceObservation extends LocalManualDatasourceObservation implements Destructible {
52
53 private final MessagesManager.MessageListener messageListener;
54 private final MessagesManager messagesManager;
55 private final String userName;
56
57 @Inject
58 NotificationDataSourceObservation(UI ui, MessagesManager messagesManager, Context context) {
59 super(ui);
60 this.messagesManager = messagesManager;
61 this.userName = context.getUser().getName();
62 this.messageListener = new MessagesManager.MessageListener() {
63 @Override
64 public void messageSent(Message message) {
65 trigger();
66 }
67
68 @Override
69 public void messageCleared(Message message) {
70 trigger();
71 }
72
73 @Override
74 public void messageRemoved(String id) {
75 trigger();
76 }
77 };
78 this.messagesManager.registerMessagesListener(userName, messageListener); }
79
80 @Override
81 public void destroy() {
82 messagesManager.unregisterMessagesListener(userName, messageListener);
83 }
84 }