RenderRenderableViewHelper.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
/*
 * Inspired by and partially taken from the Neos.Form package (www.neos.io)
 */
 
namespace ‪TYPO3\CMS\Form\ViewHelpers;
 
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Form\Domain\Model\Renderable\RenderableInterface;
use ‪TYPO3\CMS\Form\Domain\Model\Renderable\RootRenderableInterface;
use ‪TYPO3\CMS\Form\Domain\Runtime\FormRuntime;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
 
final class ‪RenderRenderableViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;
 
    protected ‪$escapeOutput = false;
 
    public function ‪initializeArguments(): void
    {
        $this->registerArgument('renderable', RootRenderableInterface::class, 'A RenderableInterface instance', true);
    }
 
    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext): string
    {
        $formRuntime = $renderingContext
            ->getViewHelperVariableContainer()
            ->get(self::class, 'formRuntime');
 
        $renderable = $arguments['renderable'];
 
        foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/form']['beforeRendering'] ?? [] as $className) {
            $hookObj = GeneralUtility::makeInstance($className);
            if (method_exists($hookObj, 'beforeRendering')) {
                $hookObj->beforeRendering(
                    $formRuntime,
                    $renderable
                );
            }
        }
 
        $content = '';
 
        if ($renderable instanceof FormRuntime || $renderable instanceof RenderableInterface && $renderable->isEnabled()) {
            $content = $renderChildrenClosure();
        }
 
        // Wrap every renderable with a span with an identifier path data attribute if previewMode is active
        if (!empty($content)) {
            $renderingOptions = $formRuntime->getRenderingOptions();
            if (isset($renderingOptions['previewMode']) && $renderingOptions['previewMode'] === true) {
                $path = $renderable->getIdentifier();
                if ($renderable instanceof RenderableInterface) {
                    while ($renderable = $renderable->getParentRenderable()) {
                        $path = $renderable->getIdentifier() . '/' . $path;
                    }
                }
                $content = '<span data-element-identifier-path="' . $path . '">' . $content . '</span>';
            }
        }
        return $content;
    }
}