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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace MediaWiki\Extension\Poem\Parsoid; |
| 5 | |
| 6 | use Wikimedia\Parsoid\DOM\Element; |
| 7 | use Wikimedia\Parsoid\DOM\Node; |
| 8 | use Wikimedia\Parsoid\DOM\Text; |
| 9 | use Wikimedia\Parsoid\Ext\DOMProcessor; |
| 10 | use Wikimedia\Parsoid\Ext\DOMUtils; |
| 11 | use Wikimedia\Parsoid\Ext\ParsoidExtensionAPI; |
| 12 | |
| 13 | class PoemProcessor extends DOMProcessor { |
| 14 | |
| 15 | /** |
| 16 | * @inheritDoc |
| 17 | */ |
| 18 | public function wtPostprocess( |
| 19 | ParsoidExtensionAPI $extApi, Node $node, array $options |
| 20 | ): void { |
| 21 | $c = $node->firstChild; |
| 22 | while ( $c ) { |
| 23 | if ( $c instanceof Element ) { |
| 24 | if ( DOMUtils::hasTypeOf( $c, 'mw:Extension/poem' ) ) { |
| 25 | // Replace newlines found in <nowiki> fragment with <br/>s |
| 26 | self::processNowikis( $c ); |
| 27 | } else { |
| 28 | $this->wtPostprocess( $extApi, $c, $options ); |
| 29 | } |
| 30 | } |
| 31 | $c = $c->nextSibling; |
| 32 | } |
| 33 | } |
| 34 | |
| 35 | private function processNowikis( Element $node ): void { |
| 36 | $doc = $node->ownerDocument; |
| 37 | $c = $node->firstChild; |
| 38 | while ( $c ) { |
| 39 | if ( !$c instanceof Element ) { |
| 40 | $c = $c->nextSibling; |
| 41 | continue; |
| 42 | } |
| 43 | |
| 44 | if ( !DOMUtils::hasTypeOf( $c, 'mw:Nowiki' ) ) { |
| 45 | self::processNowikis( $c ); |
| 46 | $c = $c->nextSibling; |
| 47 | continue; |
| 48 | } |
| 49 | |
| 50 | // Replace the nowiki's text node with a combination |
| 51 | // of content and <br/>s. Take care to deal with |
| 52 | // entities that are still entity-wrapped (!!). |
| 53 | $cc = $c->firstChild; |
| 54 | while ( $cc ) { |
| 55 | $next = $cc->nextSibling; |
| 56 | if ( $cc instanceof Text ) { |
| 57 | $pieces = preg_split( '/\n/', $cc->nodeValue ?? '' ); |
| 58 | $n = count( $pieces ); |
| 59 | $nl = ''; |
| 60 | for ( $i = 0; $i < $n; $i++ ) { |
| 61 | $p = $pieces[$i]; |
| 62 | $c->insertBefore( $doc->createTextNode( $nl . $p ), $cc ); |
| 63 | if ( $i < $n - 1 ) { |
| 64 | $c->insertBefore( $doc->createElement( 'br' ), $cc ); |
| 65 | $nl = "\n"; |
| 66 | } |
| 67 | } |
| 68 | $c->removeChild( $cc ); |
| 69 | } |
| 70 | $cc = $next; |
| 71 | } |
| 72 | $c = $c->nextSibling; |
| 73 | } |
| 74 | } |
| 75 | } |