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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | */ |
| 18 | |
| 19 | namespace MediaWiki\Skin; |
| 20 | |
| 21 | use MediaWiki\SpecialPage\SpecialPage; |
| 22 | use RuntimeException; |
| 23 | |
| 24 | /** |
| 25 | * @internal for use inside Skin and SkinTemplate classes only |
| 26 | * @unstable |
| 27 | */ |
| 28 | class SkinComponentRegistry { |
| 29 | /** @var SkinComponent[]|null null if not initialized. */ |
| 30 | private $components = null; |
| 31 | |
| 32 | /** @var SkinComponentRegistryContext */ |
| 33 | private $skinContext; |
| 34 | |
| 35 | /** |
| 36 | * @param SkinComponentRegistryContext $skinContext |
| 37 | */ |
| 38 | public function __construct( SkinComponentRegistryContext $skinContext ) { |
| 39 | $this->skinContext = $skinContext; |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Get a component. This method has side effects in that |
| 44 | * if registered components have been not initialized they |
| 45 | * will be registered as part of this method. |
| 46 | * |
| 47 | * @param string $name |
| 48 | * @throws RuntimeException with unknown name |
| 49 | * @return SkinComponent |
| 50 | */ |
| 51 | public function getComponent( string $name ): SkinComponent { |
| 52 | if ( $this->components === null ) { |
| 53 | $this->registerComponents(); |
| 54 | } |
| 55 | $component = $this->components[$name] ?? null; |
| 56 | if ( !$component ) { |
| 57 | throw new RuntimeException( 'Unknown component: ' . $name ); |
| 58 | } |
| 59 | return $component; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Return all registered components. |
| 64 | * |
| 65 | * @since 1.38 |
| 66 | * @return SkinComponent[] |
| 67 | */ |
| 68 | public function getComponents() { |
| 69 | if ( $this->components === null ) { |
| 70 | $this->registerComponents(); |
| 71 | } |
| 72 | return $this->components; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Registers a component for use with the skin. |
| 77 | * Private for now, but in future we may consider making this a |
| 78 | * public method to allow skins to extend component definitions. |
| 79 | * |
| 80 | * @param string $name |
| 81 | * @throws RuntimeException if given an unknown name |
| 82 | */ |
| 83 | private function registerComponent( string $name ) { |
| 84 | $skin = $this->skinContext; |
| 85 | switch ( $name ) { |
| 86 | case 'copyright': |
| 87 | $component = new SkinComponentCopyright( |
| 88 | $skin |
| 89 | ); |
| 90 | break; |
| 91 | case 'logos': |
| 92 | $component = new SkinComponentLogo( |
| 93 | $skin->getConfig(), |
| 94 | $skin->getLanguage() |
| 95 | ); |
| 96 | break; |
| 97 | case 'search-box': |
| 98 | $component = new SkinComponentSearch( |
| 99 | $skin->getConfig(), |
| 100 | $skin->getMessageLocalizer(), |
| 101 | SpecialPage::newSearchPage( $skin->getUser() ) |
| 102 | ); |
| 103 | break; |
| 104 | case 'toc': |
| 105 | $component = new SkinComponentTableOfContents( $skin->getOutput() ); |
| 106 | break; |
| 107 | case 'last-modified': |
| 108 | $component = new SkinComponentLastModified( |
| 109 | $skin, $skin->getOutput()->getRevisionTimestamp() |
| 110 | ); |
| 111 | break; |
| 112 | case 'footer': |
| 113 | $component = new SkinComponentFooter( $skin ); |
| 114 | break; |
| 115 | default: |
| 116 | throw new RuntimeException( 'Unknown component: ' . $name ); |
| 117 | } |
| 118 | $this->components[$name] = $component; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Registers components used by skin. |
| 123 | */ |
| 124 | private function registerComponents() { |
| 125 | $this->registerComponent( 'copyright' ); |
| 126 | $this->registerComponent( 'last-modified' ); |
| 127 | $this->registerComponent( 'logos' ); |
| 128 | $this->registerComponent( 'toc' ); |
| 129 | $this->registerComponent( 'search-box' ); |
| 130 | $this->registerComponent( 'footer' ); |
| 131 | } |
| 132 | } |