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| <?php | |
| declare( strict_types = 1 ); | |
| namespace Wikimedia\Parsoid\Html2Wt\DOMHandlers; | |
| use Wikimedia\Parsoid\DOM\Element; | |
| use Wikimedia\Parsoid\DOM\Node; | |
| use Wikimedia\Parsoid\DOM\Text; | |
| use Wikimedia\Parsoid\Html2Wt\SerializerState; | |
| use Wikimedia\Parsoid\Html2Wt\WTSUtils; | |
| use Wikimedia\Parsoid\Utils\DOMCompat; | |
| use Wikimedia\Parsoid\Utils\DOMDataUtils; | |
| use Wikimedia\Parsoid\Utils\DOMUtils; | |
| use Wikimedia\Parsoid\Utils\Utils; | |
| use Wikimedia\Parsoid\Utils\WTUtils; | |
| class MetaHandler extends DOMHandler { | |
| public function __construct() { | |
| parent::__construct( false ); | |
| } | |
| /** @inheritDoc */ | |
| public function handle( | |
| Element $node, SerializerState $state, bool $wrapperUnmodified = false | |
| ): ?Node { | |
| $property = $node->getAttribute( 'property' ) ?? ''; | |
| $dp = DOMDataUtils::getDataParsoid( $node ); | |
| $dmw = DOMDataUtils::getDataMw( $node ); | |
| if ( isset( $dp->src ) && | |
| DOMUtils::matchTypeOf( $node, '#^mw:Placeholder(/|$)#' ) | |
| ) { | |
| $this->emitPlaceholderSrc( $node, $state ); | |
| return $node->nextSibling; | |
| } | |
| // Check for property before type so that page properties with | |
| // templated attrs roundtrip properly. | |
| // Ex: {{DEFAULTSORT:{{1x|foo}} }} | |
| if ( $property ) { | |
| preg_match( '#^mw\:PageProp/(.*)$#D', $property, $switchType ); | |
| if ( $switchType ) { | |
| $out = $switchType[1]; | |
| $cat = preg_match( '/^(?:category)?(.*)/', $out, $catMatch ); | |
| if ( $cat && isset( Utils::magicMasqs()[$catMatch[1]] ) ) { | |
| $contentInfo = $state->serializer->serializedAttrVal( $node, 'content' ); | |
| if ( WTUtils::hasExpandedAttrsType( $node ) ) { | |
| $out = '{{' . $contentInfo['value'] . '}}'; | |
| } elseif ( isset( $dp->src ) ) { | |
| $colon = strpos( $dp->src, ':', 2 ); | |
| $out = preg_replace( '/^([^:}]+).*$/D', "$1", $dp->src, 1 ); | |
| if ( ( $colon === false ) && ( $contentInfo['value'] === '' ) ) { | |
| $out .= '}}'; | |
| } else { | |
| $out .= ':' . $contentInfo['value'] . '}}'; | |
| } | |
| } else { | |
| $magicWord = mb_strtoupper( $catMatch[1] ); | |
| $out = '{{' . $magicWord . ':' . $contentInfo['value'] . '}}'; | |
| } | |
| } else { | |
| $out = $state->getEnv()->getSiteConfig()->getMagicWordWT( | |
| $switchType[1], $dp->magicSrc ?? '' ); | |
| } | |
| $state->emitChunk( $out, $node ); | |
| } else { | |
| ( new FallbackHTMLHandler )->handle( $node, $state ); | |
| } | |
| } elseif ( WTUtils::isAnnotationStartMarkerMeta( $node ) ) { | |
| $annType = WTUtils::extractAnnotationType( $node ); | |
| if ( $this->needToWriteStartMeta( $state, $node ) ) { | |
| $datamw = DOMDataUtils::getDataMw( $node ); | |
| $attrs = ""; | |
| if ( isset( $datamw->attrs ) ) { | |
| foreach ( get_object_vars( $datamw->attrs ) as $k => $v ) { | |
| if ( $v === "" ) { | |
| $attrs .= ' ' . $k; | |
| } else { | |
| $attrs .= ' ' . $k . '="' . $v . '"'; | |
| } | |
| } | |
| } | |
| // Follow-up on attributes sanitation to happen in T295168 | |
| $state->emitChunk( '<' . $annType . $attrs . '>', $node ); | |
| $state->openAnnotationRange( $annType, $datamw->extendedRange ?? false ); | |
| } | |
| } elseif ( WTUtils::isAnnotationEndMarkerMeta( $node ) ) { | |
| if ( $this->needToWriteEndMeta( $state, $node ) ) { | |
| $annType = WTUtils::extractAnnotationType( $node ); | |
| $state->emitChunk( '</' . $annType . '>', $node ); | |
| $state->closeAnnotationRange( $annType ); | |
| } | |
| } else { | |
| switch ( $node->getAttribute( 'typeof' ) ?? '' ) { | |
| case 'mw:Includes/IncludeOnly': | |
| // Remove the dp.src when older revisions of HTML expire in RESTBase | |
| $state->emitChunk( $dmw->src ?? $dp->src ?? '', $node ); | |
| break; | |
| case 'mw:Includes/IncludeOnly/End': | |
| // Just ignore. | |
| break; | |
| case 'mw:Includes/NoInclude': | |
| $state->emitChunk( $dp->src ?? '<noinclude>', $node ); | |
| break; | |
| case 'mw:Includes/NoInclude/End': | |
| $state->emitChunk( $dp->src ?? '</noinclude>', $node ); | |
| break; | |
| case 'mw:Includes/OnlyInclude': | |
| $state->emitChunk( $dp->src ?? '<onlyinclude>', $node ); | |
| break; | |
| case 'mw:Includes/OnlyInclude/End': | |
| $state->emitChunk( $dp->src ?? '</onlyinclude>', $node ); | |
| break; | |
| case 'mw:DiffMarker/inserted': | |
| case 'mw:DiffMarker/deleted': | |
| case 'mw:DiffMarker/moved': | |
| case 'mw:Separator': | |
| // just ignore it | |
| break; | |
| default: | |
| ( new FallbackHTMLHandler() )->handle( $node, $state ); | |
| } | |
| } | |
| return $node->nextSibling; | |
| } | |
| /** | |
| * Decides if we need to write an annotation start meta at the place we encounter it | |
| * @param SerializerState $state | |
| * @param Element $node | |
| * @return bool | |
| */ | |
| private function needToWriteStartMeta( SerializerState $state, Element $node ): bool { | |
| if ( !$state->selserMode ) { | |
| return true; | |
| } | |
| if ( WTUtils::isMovedMetaTag( $node ) ) { | |
| $nextContentSibling = DOMCompat::getNextElementSibling( $node ); | |
| // If the meta tag has been moved, it comes from its next element.... "almost". | |
| // First exception is if we have several marker annotations in a row - then we need | |
| // to pass them all. Second exception is if we have fostered content: then we're | |
| // interested in what happens in the table, which happens _after_ the fostered content. | |
| while ( $nextContentSibling !== null && | |
| ( WTUtils::isMarkerAnnotation( $nextContentSibling ) || | |
| !empty( DOMDataUtils::getDataParsoid( $nextContentSibling )->fostered ) | |
| ) | |
| ) { | |
| $nextContentSibling = DOMCompat::getNextElementSibling( $nextContentSibling ); | |
| } | |
| // When the content from which the meta tag comes gets | |
| // deleted or modified, we emit _now_ so that we don't risk losing it. The range | |
| // stays extended in the round-tripped version of the wikitext. | |
| $nextdiffdata = DOMDataUtils::getDataParsoidDiff( $nextContentSibling ); | |
| if ( DOMUtils::isDiffMarker( $nextContentSibling ) || | |
| ( $nextdiffdata->diff ?? null ) | |
| ) { | |
| return true; | |
| } | |
| return !WTSUtils::origSrcValidInEditedContext( $state, $nextContentSibling ); | |
| } | |
| return true; | |
| } | |
| /** | |
| * Decides if we need to write an annotation end meta at the place we encounter it | |
| * @param SerializerState $state | |
| * @param Element $node | |
| * @return bool | |
| */ | |
| private function needToWriteEndMeta( SerializerState $state, Element $node ): bool { | |
| if ( !$state->selserMode ) { | |
| return true; | |
| } | |
| if ( WTUtils::isMovedMetaTag( $node ) ) { | |
| $prevElementSibling = DOMCompat::getPreviousElementSibling( $node ); | |
| while ( $prevElementSibling !== null && | |
| WTUtils::isMarkerAnnotation( $prevElementSibling ) | |
| ) { | |
| $prevElementSibling = DOMCompat::getPreviousElementSibling( $prevElementSibling ); | |
| } | |
| if ( $prevElementSibling ) { | |
| $prevdiffdata = DOMDataUtils::getDataParsoidDiff( $prevElementSibling ); | |
| if ( | |
| DOMUtils::isDiffMarker( $prevElementSibling ) || | |
| $prevdiffdata !== null && $prevdiffdata->diff !== null | |
| ) { | |
| return true; | |
| } | |
| return !WTSUtils::origSrcValidInEditedContext( $state, $prevElementSibling ); | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * We create a newline (or two) if: | |
| * * the previous element is a block element | |
| * * the previous element is text, AND we're not in an inline-text situation: this | |
| * corresponds to text having been added in VE without creating a paragraph, which happens | |
| * when inserting a new line before the <meta> tag in VE. The "we're not in an inline text" | |
| * is a heuristic and doesn't work for the ends of line for instance, but it shouldn't add | |
| * semantic whitespace either. | |
| * @param Node $meta | |
| * @param Node $otherNode | |
| * @return bool | |
| */ | |
| private function needNewLineSepBeforeMeta( Node $meta, Node $otherNode ) { | |
| return ( $otherNode !== $meta->parentNode | |
| && ( $otherNode instanceof Element && | |
| DOMUtils::isWikitextBlockNode( $otherNode ) || | |
| ( $otherNode instanceof Text && | |
| DOMUtils::isWikitextBlockNode( DOMUtils::nextNonSepSibling( $meta ) ) | |
| ) | |
| ) ); | |
| } | |
| /** @inheritDoc */ | |
| public function before( Element $node, Node $otherNode, SerializerState $state ): array { | |
| if ( WTUtils::isAnnotationStartMarkerMeta( $node ) ) { | |
| if ( $this->needNewLineSepBeforeMeta( $node, $otherNode ) ) { | |
| return [ 'min' => 2 ]; | |
| } else { | |
| return []; | |
| } | |
| } | |
| if ( WTUtils::isAnnotationEndMarkerMeta( $node ) ) { | |
| if ( $this->needNewLineSepBeforeMeta( $node, $otherNode ) ) { | |
| return [ | |
| 'min' => 1 | |
| ]; | |
| } else { | |
| return []; | |
| } | |
| } | |
| $type = $node->getAttribute( 'typeof' ) ?: $node->getAttribute( 'property' ) ?: null; | |
| if ( $type && str_contains( $type, 'mw:PageProp/categorydefaultsort' ) ) { | |
| if ( $otherNode instanceof Element | |
| && DOMCompat::nodeName( $otherNode ) === 'p' | |
| && ( DOMDataUtils::getDataParsoid( $otherNode )->stx ?? null ) !== 'html' | |
| ) { | |
| // Since defaultsort is outside the p-tag, we need 2 newlines | |
| // to ensure that it go back into the p-tag when parsed. | |
| return [ 'min' => 2 ]; | |
| } else { | |
| return [ 'min' => 1 ]; | |
| } | |
| } elseif ( WTUtils::isNewElt( $node ) && | |
| // Placeholder and annotation metas or <*include*> tags don't need to be serialized on | |
| // their own line | |
| !DOMUtils::matchTypeOf( $node, '#^mw:(Placeholder|Includes|Annotation)(/|$)#' ) | |
| ) { | |
| return [ 'min' => 1 ]; | |
| } else { | |
| return []; | |
| } | |
| } | |
| /** @inheritDoc */ | |
| public function after( Element $node, Node $otherNode, SerializerState $state ): array { | |
| if ( WTUtils::isAnnotationEndMarkerMeta( $node ) ) { | |
| if ( $otherNode !== $node->parentNode && $otherNode instanceof Element && | |
| DOMUtils::isWikitextBlockNode( $otherNode ) ) { | |
| return [ 'min' => 2 ]; | |
| } else { | |
| return []; | |
| } | |
| } | |
| if ( WTUtils::isAnnotationStartMarkerMeta( $node ) ) { | |
| if ( $otherNode !== $node->parentNode && $otherNode instanceof Element && | |
| DOMUtils::isWikitextBlockNode( $otherNode ) ) { | |
| return [ 'min' => 1 ]; | |
| } else { | |
| return []; | |
| } | |
| } | |
| // No diffs | |
| if ( WTUtils::isNewElt( $node ) && | |
| // Placeholder and annotation metas or <*include*> tags don't need to be serialized on | |
| // their own line | |
| !DOMUtils::matchTypeOf( $node, '#^mw:(Placeholder|Includes|Annotation)(/|$)#' ) | |
| ) { | |
| return [ 'min' => 1 ]; | |
| } else { | |
| return []; | |
| } | |
| } | |
| } |