1 /**
2 * This file Copyright (c) 2012 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.templating.editor.client.widget.button;
35
36 import java.util.Map;
37 import java.util.Map.Entry;
38
39 import com.google.gwt.event.dom.client.ChangeEvent;
40 import com.google.gwt.event.dom.client.ChangeHandler;
41 import com.google.gwt.user.client.Window;
42 import com.google.gwt.user.client.ui.ListBox;
43
44
45 /**
46 * Locale selector widget. It will output a select box with all locales passed in. Changing selection will trigger page reloading by default. You can change this behavior, by overriding
47 * {@link #onChangeCallback(ChangeEvent)}.
48 *
49 * @version $Id$
50 *
51 */
52 public class LocaleSelector extends ListBox {
53 /**
54 * @param availableLocales a map whose key is the locale string in a human readable form (i.e. English, Deutsch) and whose value is a string representing
55 * the URI associated to that locale.
56 * @param currentURI a string used to select the current locale in the selector.
57 */
58 public LocaleSelector(final Map<String, String> availableLocales, final String currentURI) {
59 if(availableLocales != null && !availableLocales.isEmpty()) {
60 int index = 0;
61
62 for(Entry<String, String> locale : availableLocales.entrySet()) {
63 this.addItem(locale.getKey(), locale.getValue());
64 if(locale.getValue().equals(currentURI)) {
65 this.setSelectedIndex(index);
66 }
67 index++;
68 }
69
70 this.addChangeHandler(new ChangeHandler() {
71
72 @Override
73 public void onChange(ChangeEvent event) {
74 onChangeCallback(event);
75 }
76 });
77 }
78 }
79
80 protected void onChangeCallback(ChangeEvent event) {
81 ListBox languageSelector = (ListBox)event.getSource();
82 Window.Location.replace(languageSelector.getValue(languageSelector.getSelectedIndex()));
83 }
84 }