56 lines
1.5 KiB
PHP
56 lines
1.5 KiB
PHP
<?php
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use Wikibase\DataModel\Services\Entity\PropertyDataTypeMatcher;
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use Wikibase\DataModel\Statement\Statement;
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use Wikibase\Repo\ParserOutput\StatementDataUpdater;
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/**
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* Add required styles for mathematical formulae to the ParserOutput.
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*
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* @license GPL-2.0-or-later
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* @author Moritz Schubotz
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*/
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class MathDataUpdater implements StatementDataUpdater {
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private $hasMath = false;
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/**
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* @var PropertyDataTypeMatcher
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*/
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private $propertyDataTypeMatcher;
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/**
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* @inheritDoc
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*/
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public function __construct( PropertyDataTypeMatcher $propertyDataTypeMatcher ) {
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$this->propertyDataTypeMatcher = $propertyDataTypeMatcher;
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}
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/**
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* Extract some data or do processing on a Statement during parsing.
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*
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* This method is normally invoked when processing a StatementList
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* for all Statements on a StatementListProvider (e.g. an Item).
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*
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* @param Statement $statement
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*/
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public function processStatement( Statement $statement ) {
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$propertyId = $statement->getPropertyId();
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if ( $this->propertyDataTypeMatcher->isMatchingDataType( $propertyId, 'math' ) ) {
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$this->hasMath = true;
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}
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}
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/**
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* Update extension data, properties or other data in ParserOutput.
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* These updates are invoked when EntityContent::getParserOutput is called.
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*
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* @param ParserOutput $parserOutput
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*/
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public function updateParserOutput( ParserOutput $parserOutput ) {
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if ( $this->hasMath ) {
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$parserOutput->addModules( [ 'ext.math.scripts' ] );
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$parserOutput->addModuleStyles( [ 'ext.math.styles' ] );
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}
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}
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}
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