wikimedia/mediawiki-extensions-Wikibase

<?php

namespace Wikibase\Repo\ParserOutput;

use Wikibase\DataModel\Term\Term;
use Wikibase\DataModel\Term\TermFallback;
use Wikibase\Lib\LanguageFallbackIndicator;
use Wikibase\Lib\LanguageNameLookup;
use Wikibase\View\HtmlTermRenderer;
use Wikibase\View\LanguageDirectionalityLookup;

/**
 * @license GPL-2.0-or-later
 * @author Adrian Heine <adrian.heine@wikimedia.de>
 */
class FallbackHintHtmlTermRenderer implements HtmlTermRenderer {

    /**
     * @var LanguageFallbackIndicator
     */
    private $languageFallbackIndicator;

    /**
     * @var LanguageDirectionalityLookup
     */
    private $languageDirectionalityLookup;

    public function __construct(
        LanguageDirectionalityLookup $languageDirectionalityLookup,
        LanguageNameLookup $languageNameLookup
    ) {
        $this->languageFallbackIndicator = new LanguageFallbackIndicator( $languageNameLookup );
        $this->languageDirectionalityLookup = $languageDirectionalityLookup;
    }

    /**
     * @param Term $term
     * @return string HTML representing the term; This will be used in an HTML language and directionality context
     *   that corresponds to $term->getLanguageCode().
     */
    public function renderTerm( Term $term ) {
        $html = htmlspecialchars( $term->getText() );
        if ( $term instanceof TermFallback ) {
            $actualLanguageCode = $term->getActualLanguageCode();
            if ( $actualLanguageCode !== $term->getLanguageCode() ) {
                $html = '<span ' .
                    'lang="' . htmlspecialchars( $actualLanguageCode ) . '" ' .
                    'dir="' . ( $this->languageDirectionalityLookup->getDirectionality( $actualLanguageCode ) ?: 'auto' ) . '"' .
                '>' . $html . '</span>';
            }
            $html .= $this->languageFallbackIndicator->getHtml( $term );
        }
        return $html;
    }

}