1 /**
2 * This file Copyright (c) 2018-2021 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.field;
35
36 import java.util.Optional;
37
38 import com.vaadin.ui.AbstractSingleSelect;
39 import com.vaadin.ui.ComboBox;
40
41
42 /**
43 * A custom field displaying a comboBox field and a button for bringing up a component enabling to choose an item.
44 */
45 public class LinkField<T> extends AbstractLinkField<T, T> {
46
47 private final AbstractSingleSelect<T> select;
48
49 public LinkField(ComboBox<T> innerComponent) {
50 super(innerComponent);
51 select = innerComponent;
52 }
53
54 @Override
55 public Optional<T> getSelectedItem() {
56 return getOptionalValue();
57 }
58
59 @Override
60 public void setSelectedItem(T item) {
61 setValue(item);
62 }
63
64 @Override
65 protected boolean isDifferentValue(T newValue) {
66 return super.isDifferentValue(newValue) && !select.isSelected(newValue);
67 }
68
69 /**
70 * @deprecated since 6.2.7. Not used.
71 */
72 @Deprecated
73 public void setButtonCaptionOther(String buttonCaptionOther) {
74 }
75 }