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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Parsoid\Extractor; |
| 4 | |
| 5 | use DOMElement; |
| 6 | use Flow\Model\WikiReference; |
| 7 | use Flow\Parsoid\Extractor; |
| 8 | use Flow\Parsoid\ReferenceFactory; |
| 9 | use FormatJson; |
| 10 | use MediaWiki\MediaWikiServices; |
| 11 | use MediaWiki\Title\Title; |
| 12 | use ParserOptions; |
| 13 | |
| 14 | /* |
| 15 | * phpcs:disable Generic.Files.LineLength |
| 16 | * Parsoid currently returns images that don't exist like: |
| 17 | * <meta typeof="mw:Placeholder" data-parsoid='{"src":"[[File:Image.png|25px]]","optList":[{"ck":"width","ak":"25px"}],"dsr":[0,23,null,null]}'> |
| 18 | * phpcs:enable Generic.Files.LineLength |
| 19 | * |
| 20 | * Links to those should also be registered, but since they're |
| 21 | * different nodes than what we expect above, we'll have to deal |
| 22 | * with them ourselves. This may change some day, as Parsoids |
| 23 | * codebase has a FIXME "Handle missing images properly!!" |
| 24 | */ |
| 25 | class PlaceholderExtractor implements Extractor { |
| 26 | /** |
| 27 | * @inheritDoc |
| 28 | */ |
| 29 | public function getXPath() { |
| 30 | return '//*[contains(concat(" ", @typeof, " "), " mw:Placeholder" )]'; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * @inheritDoc |
| 35 | */ |
| 36 | public function perform( ReferenceFactory $factory, DOMElement $element ) { |
| 37 | $data = FormatJson::decode( $element->getAttribute( 'data-parsoid' ), true ); |
| 38 | if ( !isset( $data['src'] ) ) { |
| 39 | return null; |
| 40 | } |
| 41 | |
| 42 | /* |
| 43 | * Parsoid only gives us the raw source to play with. Run it |
| 44 | * through Parser to make sure we're dealing with an image |
| 45 | * and get the image name. |
| 46 | */ |
| 47 | $output = MediaWikiServices::getInstance()->getParser()->parse( |
| 48 | $data['src'], |
| 49 | Title::newFromText( 'Main Page' ), |
| 50 | ParserOptions::newFromAnon() |
| 51 | ); |
| 52 | |
| 53 | $file = $output->getImages(); |
| 54 | if ( !$file ) { |
| 55 | return null; |
| 56 | } |
| 57 | // $file looks like [ 'Foo.jpg' => 1 ] |
| 58 | $image = Title::newFromText( key( $file ), NS_FILE ); |
| 59 | |
| 60 | return $factory->createWikiReference( WikiReference::TYPE_FILE, $image->getPrefixedDBkey() ); |
| 61 | } |
| 62 | } |