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.contentapp.browser;
35
36 import info.magnolia.objectfactory.ComponentProvider;
37 import info.magnolia.ui.contentapp.FilterableHierarchicalDataProvider;
38 import info.magnolia.ui.contentapp.configuration.GridViewDefinition;
39
40 import java.util.stream.Stream;
41
42 import javax.inject.Inject;
43
44 import com.vaadin.ui.TreeGrid;
45
46 /**
47 * Handles some datasource related presentation logic on behalf of {@link TreeView}.
48 *
49 * @param <T>
50 * data type tree view is working with
51 */
52 public abstract class TreePresenter<T> extends GridViewPresenter<T> {
53
54 @Inject
55 public TreePresenter(
56 GridViewDefinition<T> definition,
57 ComponentProvider componentProvider,
58 ActionExecutionService actionExecutionService) {
59 super(definition, componentProvider, actionExecutionService);
60 }
61
62 @Override
63 protected TreeGrid<T> createGrid() {
64 return new MagnoliaTreeGrid<>(
65 propertySet(),
66 this::isItemAvailable,
67 this::isPropertyEditable);
68 }
69
70 public TreeGrid<T> grid() {
71 return (TreeGrid<T>) super.grid();
72 }
73
74 public abstract Stream<T> getParents(T item);
75
76 @Override
77 protected FilterableHierarchicalDataProvider<T> dataProvider() {
78 //noinspection unchecked
79 return (FilterableHierarchicalDataProvider<T>)super.dataProvider();
80 }
81
82 @Override
83 public abstract FilterableHierarchicalDataProvider<T> createDataProvider();
84 }