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1 | <?php |
2 | declare( strict_types=1 ); |
3 | |
4 | /** |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program 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 |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program; if not, write to the Free Software Foundation, Inc., |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | * http://www.gnu.org/copyleft/gpl.html |
19 | * |
20 | * @file |
21 | */ |
22 | namespace Wikimedia\Parsoid\Utils; |
23 | |
24 | use Wikimedia\JsonCodec\Hint; |
25 | use Wikimedia\JsonCodec\JsonCodecable; |
26 | |
27 | /** |
28 | * This is an extension of JsonCodecable which adds some properties useful |
29 | * for rich attributes: |
30 | * * a `::flatten()` method which provides a plain string form of the data |
31 | * which is used for compatibility with HTML semantics, and |
32 | * * a `::hint()` method which is used to provide additional class hint |
33 | * information for object. The default class hint is the name of the |
34 | * class, but if you want to add modifiers, or perhaps use a superclass |
35 | * as a hint, this method will allow that sort of customization. |
36 | */ |
37 | interface RichCodecable extends JsonCodecable { |
38 | |
39 | /** |
40 | * Provide a constructor for a default value for objects of this type. |
41 | * @return ?self |
42 | */ |
43 | public static function defaultValue(): ?self; |
44 | |
45 | /** |
46 | * Provide a JsonCodec `Hint` for serializing objects of this type. |
47 | * @return class-string|Hint|null |
48 | */ |
49 | public static function hint(); |
50 | |
51 | /** |
52 | * Provide a flattened "plain string" form of this data for use |
53 | * as the value of a compatibility attribute to implement HTML |
54 | * semantics. |
55 | * |
56 | * @return ?string a plain string, or null to omit the compatibility |
57 | * attribute |
58 | */ |
59 | public function flatten(): ?string; |
60 | } |