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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Html2Wt\DOMHandlers; |
| 5 | |
| 6 | use Wikimedia\Parsoid\DOM\Element; |
| 7 | use Wikimedia\Parsoid\DOM\Node; |
| 8 | use Wikimedia\Parsoid\DOM\Text; |
| 9 | use Wikimedia\Parsoid\Html2Wt\SerializerState; |
| 10 | use Wikimedia\Parsoid\Utils\DOMCompat; |
| 11 | use Wikimedia\Parsoid\Utils\DOMDataUtils; |
| 12 | use Wikimedia\Parsoid\Utils\TokenUtils; |
| 13 | |
| 14 | /** |
| 15 | * Used as a fallback in other tag handles. |
| 16 | */ |
| 17 | class FallbackHTMLHandler extends DOMHandler { |
| 18 | |
| 19 | public function __construct() { |
| 20 | parent::__construct( false ); |
| 21 | } |
| 22 | |
| 23 | /** @inheritDoc */ |
| 24 | public function handle( |
| 25 | Element $node, SerializerState $state, bool $wrapperUnmodified = false |
| 26 | ): ?Node { |
| 27 | $serializer = $state->serializer; |
| 28 | |
| 29 | // Wikitext supports the following list syntax: |
| 30 | // |
| 31 | // * <li class="a"> hello world |
| 32 | // |
| 33 | // The "LI Hack" gives support for this syntax, and we need to |
| 34 | // specially reconstruct the above from a single <li> tag. |
| 35 | $serializer->handleLIHackIfApplicable( $node ); |
| 36 | |
| 37 | $tag = $serializer->serializeHTMLTag( $node, $wrapperUnmodified ); |
| 38 | $state->emitChunk( $tag, $node ); |
| 39 | |
| 40 | if ( $node->hasChildNodes() ) { |
| 41 | $inPHPBlock = $state->inPHPBlock; |
| 42 | if ( |
| 43 | TokenUtils::tagOpensBlockScope( DOMCompat::nodeName( $node ) ) || |
| 44 | // Blockquote is special in that it doesn't suppress paragraphs |
| 45 | // but does suppress pre wrapping |
| 46 | DOMCompat::nodeName( $node ) === 'blockquote' |
| 47 | ) { |
| 48 | $state->inPHPBlock = true; |
| 49 | } |
| 50 | |
| 51 | // TODO(arlolra): As of 1.3.0, html pre is considered an extension |
| 52 | // and wrapped in encapsulation. When that version is no longer |
| 53 | // accepted for serialization, we can remove this backwards |
| 54 | // compatibility code. |
| 55 | if ( DOMCompat::nodeName( $node ) === 'pre' ) { |
| 56 | // Handle html-pres specially |
| 57 | // 1. If the node has a leading newline, add one like it (logic copied from VE) |
| 58 | // 2. If not, and it has a data-parsoid strippedNL flag, add it back. |
| 59 | // This patched DOM will serialize html-pres correctly. |
| 60 | |
| 61 | $lostLine = ''; |
| 62 | $fc = $node->firstChild; |
| 63 | if ( $fc instanceof Text ) { |
| 64 | $lostLine = str_starts_with( $fc->nodeValue, "\n" ) ? "\n" : ''; |
| 65 | } |
| 66 | |
| 67 | if ( !$lostLine && ( DOMDataUtils::getDataParsoid( $node )->strippedNL ?? false ) ) { |
| 68 | $lostLine = "\n"; |
| 69 | } |
| 70 | |
| 71 | $state->emitChunk( $lostLine, $node ); |
| 72 | } |
| 73 | |
| 74 | $state->serializeChildren( $node ); |
| 75 | $state->inPHPBlock = $inPHPBlock; |
| 76 | } |
| 77 | |
| 78 | $endTag = $serializer->serializeHTMLEndTag( $node, $wrapperUnmodified ); |
| 79 | $state->emitChunk( $endTag, $node ); |
| 80 | return $node->nextSibling; |
| 81 | } |
| 82 | } |