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.ui.vaadin.layout;
35
36 import info.magnolia.ui.vaadin.gwt.client.layout.lazylayout.rpc.LazyLayoutServerRpc;
37 import info.magnolia.ui.vaadin.gwt.client.layout.lazylayout.rpc.LazyLayoutClientRpc;
38 import info.magnolia.ui.vaadin.gwt.client.layout.lazylayout.shared.ThumbnailData;
39 import info.magnolia.ui.vaadin.gwt.shared.Range;
40 import info.magnolia.ui.vaadin.layout.data.ThumbnailContainer;
41
42 import java.util.ArrayList;
43 import java.util.List;
44
45 import com.vaadin.server.Resource;
46
47 /**
48 * A {@link LazyLayout} for cards, aka the 6.0 thumbnail view UI.
49 *
50 * TODO: as soon as 5.x UI support is dropped, this should be merged back with {@link LazyLayout}.
51 */
52 public class LazyCardLayout extends LazyLayout {
53
54 /**
55 * Sub implementaton of {@link LazyLayoutServerRpcImpl} for cards, aka the 6.0 UI.
56 *
57 * TODO: should be merged with {@link LazyLayoutServerRpcImpl} once 5.x UI support is dropped.
58 */
59 class CardLayoutServerRpcImpl extends LazyLayoutServerRpcImpl {
60 public CardLayoutServerRpcImpl(DataProviderKeyMapper mapper, LazyLayoutClientRpc clientRpc, LazyLayout lazyLayout) {
61 super(mapper, clientRpc, lazyLayout);
62 }
63 }
64
65 public LazyCardLayout() {
66 super();
67 }
68
69 @Override
70 LazyLayoutServerRpc getRpc(DataProviderKeyMapper mapper, LazyLayoutClientRpc clientRpc) {
71 return new CardLayoutServerRpcImpl(mapper, getRpc(), this);
72 }
73
74 @Override
75 LazyLayoutClientRpc getRpc() {
76 return getRpcProxy(LazyLayoutClientRpc.class);
77 }
78
79 public List fetchElements(Range range, DataProviderKeyMapper mapper) {
80 final List<ThumbnailData> elements = new ArrayList<>(range.length());
81 for (int i = range.getStart(); i < range.getEnd(); ++i) {
82 final Object id = mapper.itemIdAtIndex(i);
83 ThumbnailContainer container = ((ThumbnailContainer) this.getContainerDataSource());
84 final Object resource = container.getThumbnailProperty(id).getValue();
85
86 boolean isRealResource = resource instanceof Resource;
87 String thumbnailId = mapper.getKey(id);
88 if (isRealResource) {
89 setResource(thumbnailId, (Resource) resource);
90 }
91 ThumbnailData thumbnailData = new ThumbnailData(thumbnailId, isRealResource);
92 final String caption = (String) container.getCaptionProperty(id).getValue();
93 thumbnailData.setCaption(caption);
94 elements.add(thumbnailData);
95 }
96 return elements;
97 }
98 }