class.ilPCLegacyAnswerFormText.php

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<?php
 
declare(strict_types=1);
 
class ilPCLegacyAnswerFormText extends ilPageContent
{
    private const string ELEMENT_TAG = 'LegacyAnswerFormText';
    private const string TEXT_ATTRIBUTE = 'Text';
    private const string TEXT_PLACEHOLDER = '\[\[\[LEGACY_ANSWER_FORM_TEXT_((?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?)\]\]\]';
 
    public function init(): void
    {
        $this->setType('laft');
    }
 
    #[\Override]
    public function modifyPageContentPostXsl(
        string $output,
        string $mode,
        bool $abstract_only = false
    ): string {
        if ($this->pg_obj::class !== QstsQuestionPage::class) {
            return $output;
        }
 
        return mb_ereg_replace_callback(
            self::TEXT_PLACEHOLDER,
            static fn(array $matches): string => \ilRTE::_replaceMediaObjectImageSrc(
                base64_decode($matches[1])
            ),
            $output
        );
    }
 
    public function create(
        string $legacy_answer_form_text
    ): void {
        $this->createInitialChildNode(
            $this->hier_id,
            '',
            self::ELEMENT_TAG,
            [self::TEXT_ATTRIBUTE => $legacy_answer_form_text]
        );
    }
}