Class | Line # | Actions | |||||
---|---|---|---|---|---|---|---|
EmptyXDOMChecker | 45 | 11 | 0% | 5 | 0 |
1 | /* | |
2 | * See the NOTICE file distributed with this work for additional | |
3 | * information regarding copyright ownership. | |
4 | * | |
5 | * This is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU Lesser General Public License as | |
7 | * published by the Free Software Foundation; either version 2.1 of | |
8 | * the License, or (at your option) any later version. | |
9 | * | |
10 | * This software is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this software; if not, write to the Free | |
17 | * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
18 | * 02110-1301 USA, or see the FSF site: http://www.fsf.org. | |
19 | */ | |
20 | package org.xwiki.rendering.internal.macro.dashboard; | |
21 | ||
22 | import java.util.List; | |
23 | ||
24 | import javax.inject.Named; | |
25 | import javax.inject.Singleton; | |
26 | ||
27 | import org.xwiki.component.annotation.Component; | |
28 | import org.xwiki.rendering.block.Block; | |
29 | import org.xwiki.rendering.block.MacroMarkerBlock; | |
30 | ||
31 | /** | |
32 | * Checks if the passed Blocks represent some visually empty content or not. We consider it's empty when: | |
33 | * <ul> | |
34 | * <li>There are no blocks</li> | |
35 | * <li>There's only 1 block, it's a {@link org.xwiki.rendering.block.MacroMarkerBlock} and it doesn't have | |
36 | * children</li> | |
37 | * </ul> | |
38 | * | |
39 | * @version $Id: 9f52a9207ec18fc2f0a8ee1008e6bd18a6ddc02c $ | |
40 | * @since 8.4RC1 | |
41 | */ | |
42 | @Component | |
43 | @Named("empty") | |
44 | @Singleton | |
45 | public class EmptyXDOMChecker implements XDOMChecker | |
46 | { | |
47 | 16 | @Override |
48 | public boolean check(List<Block> blocks) | |
49 | { | |
50 | 16 | return isContentEmpty(blocks); |
51 | } | |
52 | ||
53 | 16 | private boolean isContentEmpty(List<Block> blocks) |
54 | { | |
55 | 16 | boolean result = false; |
56 | ||
57 | 16 | if (blocks.isEmpty()) { |
58 | 1 | result = true; |
59 | } else { | |
60 | 15 | result = true; |
61 | 15 | for (Block block : blocks) { |
62 | 16 | if (!isMacroMarkerBlockAndEmpty(block)) { |
63 | 13 | result = false; |
64 | 13 | break; |
65 | } | |
66 | } | |
67 | } | |
68 | 16 | return result; |
69 | } | |
70 | ||
71 | 16 | private boolean isMacroMarkerBlockAndEmpty(Block block) |
72 | { | |
73 | 16 | return block instanceof MacroMarkerBlock && block.getChildren().isEmpty(); |
74 | } | |
75 | } |