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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Html2Wt\DOMHandlers; |
| 5 | |
| 6 | use Wikimedia\Parsoid\Core\MediaStructure; |
| 7 | use Wikimedia\Parsoid\DOM\Element; |
| 8 | use Wikimedia\Parsoid\DOM\Node; |
| 9 | use Wikimedia\Parsoid\DOM\Text; |
| 10 | use Wikimedia\Parsoid\Html2Wt\LinkHandlerUtils; |
| 11 | use Wikimedia\Parsoid\Html2Wt\SerializerState; |
| 12 | use Wikimedia\Parsoid\Html2Wt\WTSUtils; |
| 13 | use Wikimedia\Parsoid\Tokens\KV; |
| 14 | use Wikimedia\Parsoid\Utils\DiffDOMUtils; |
| 15 | use Wikimedia\Parsoid\Utils\DOMCompat; |
| 16 | use Wikimedia\Parsoid\Utils\DOMDataUtils; |
| 17 | use Wikimedia\Parsoid\Utils\DOMUtils; |
| 18 | use Wikimedia\Parsoid\Utils\Utils; |
| 19 | use Wikimedia\Parsoid\Utils\WTUtils; |
| 20 | |
| 21 | class SpanHandler extends DOMHandler { |
| 22 | |
| 23 | public function __construct() { |
| 24 | parent::__construct( false ); |
| 25 | } |
| 26 | |
| 27 | /** @inheritDoc */ |
| 28 | public function handle( |
| 29 | Element $node, SerializerState $state, bool $wrapperUnmodified = false |
| 30 | ): ?Node { |
| 31 | $env = $state->getEnv(); |
| 32 | $dp = DOMDataUtils::getDataParsoid( $node ); |
| 33 | if ( self::isRecognizedSpanWrapper( $node ) ) { |
| 34 | if ( DOMUtils::hasTypeOf( $node, 'mw:Nowiki' ) ) { |
| 35 | $ext = $env->getSiteConfig()->getExtTagImpl( 'nowiki' ); |
| 36 | $src = $ext->domToWikitext( $state->extApi, $node, $wrapperUnmodified ); |
| 37 | $state->singleLineContext->disable(); |
| 38 | $state->serializer->emitWikitext( $src, $node ); |
| 39 | $state->singleLineContext->pop(); |
| 40 | } elseif ( WTUtils::isInlineMedia( $node ) ) { |
| 41 | LinkHandlerUtils::figureHandler( |
| 42 | $state, $node, MediaStructure::parse( $node ) |
| 43 | ); |
| 44 | } elseif ( |
| 45 | DOMUtils::hasTypeOf( $node, 'mw:Entity' ) && |
| 46 | DiffDOMUtils::hasNChildren( $node, 1 ) |
| 47 | ) { |
| 48 | $contentSrc = ( $node->textContent != '' ) ? $node->textContent |
| 49 | : DOMCompat::getInnerHTML( $node ); |
| 50 | // handle a new mw:Entity (not handled by selser) by |
| 51 | // serializing its children |
| 52 | if ( isset( $dp->src ) && $contentSrc === ( $dp->srcContent ?? null ) ) { |
| 53 | $state->serializer->emitWikitext( $dp->src, $node ); |
| 54 | } elseif ( $node->firstChild instanceof Text ) { |
| 55 | $state->emitChunk( |
| 56 | Utils::entityEncodeAll( $node->firstChild->nodeValue ), |
| 57 | $node->firstChild ); |
| 58 | } else { |
| 59 | $state->serializeChildren( $node ); |
| 60 | } |
| 61 | } elseif ( DOMUtils::hasTypeOf( $node, 'mw:DisplaySpace' ) ) { |
| 62 | // FIXME(T254501): Throw an UnreachableException here instead |
| 63 | $state->emitChunk( ' ', $node ); |
| 64 | } elseif ( DOMUtils::matchTypeOf( $node, '#^mw:Placeholder(/|$)#' ) ) { |
| 65 | if ( isset( $dp->src ) ) { |
| 66 | $this->emitPlaceholderSrc( $node, $state ); |
| 67 | return $node->nextSibling; |
| 68 | } else { |
| 69 | ( new FallbackHTMLHandler )->handle( $node, $state ); |
| 70 | } |
| 71 | } |
| 72 | } elseif ( $node->hasAttribute( 'data-mw-selser-wrapper' ) ) { |
| 73 | $state->serializeChildren( $node ); |
| 74 | } else { |
| 75 | $kvs = array_filter( WTSUtils::getAttributeKVArray( $node ), static function ( KV $kv ) { |
| 76 | return !preg_match( '/^data-parsoid/', $kv->k ) |
| 77 | && ( $kv->k !== DOMDataUtils::DATA_OBJECT_ATTR_NAME ) |
| 78 | && !( $kv->k === 'id' && preg_match( '/^mw[\w-]{2,}$/D', $kv->v ) ); |
| 79 | } ); |
| 80 | if ( !empty( $dp->misnested ) && ( $dp->stx ?? null ) !== 'html' |
| 81 | && !count( $kvs ) |
| 82 | ) { |
| 83 | // Discard span wrappers added to flag misnested content. |
| 84 | // Warn since selser should have reused source. |
| 85 | $env->log( 'warn', 'Serializing misnested content: ' . DOMCompat::getOuterHTML( $node ) ); |
| 86 | $state->serializeChildren( $node ); |
| 87 | } else { |
| 88 | // Fall back to plain HTML serialization for spans created |
| 89 | // by the editor. |
| 90 | ( new FallbackHTMLHandler )->handle( $node, $state ); |
| 91 | } |
| 92 | } |
| 93 | return $node->nextSibling; |
| 94 | } |
| 95 | |
| 96 | private static function isRecognizedSpanWrapper( Element $node ): ?string { |
| 97 | return DOMUtils::matchTypeOf( |
| 98 | $node, |
| 99 | // FIXME(T254501): Remove mw:DisplaySpace |
| 100 | // TODO: Remove "Image|Video|Audio" when version 2.4.0 of the content |
| 101 | // is no longer supported |
| 102 | '#^mw:(' |
| 103 | . 'Nowiki|Entity|DisplaySpace|Placeholder(/\w+)?' |
| 104 | . '|(File|Image|Video|Audio)(/(Frameless|Frame|Thumb))?' |
| 105 | . ')$#' |
| 106 | ); |
| 107 | } |
| 108 | |
| 109 | } |