RenderContentElementPreviewViewHelper.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!
 */
 
namespace ‪TYPO3\CMS\Form\ViewHelpers\Be;
 
use TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Backend\View\BackendLayout\BackendLayout;
use ‪TYPO3\CMS\Backend\View\BackendLayout\Grid\GridColumn;
use ‪TYPO3\CMS\Backend\View\BackendLayout\Grid\GridColumnItem;
use ‪TYPO3\CMS\Backend\View\PageLayoutContext;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
 
final class ‪RenderContentElementPreviewViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;
 
    protected ‪$escapeOutput = false;
 
    public function ‪initializeArguments(): void
    {
        $this->registerArgument('contentElementUid', 'int', 'The uid of a content element');
    }
 
    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext): string
    {
        $content = '';
        $contentElementUid = $arguments['contentElementUid'];
        $contentRecord = BackendUtility::getRecord('tt_content', $contentElementUid);
        if (!empty($contentRecord)) {
            $backendLayout = GeneralUtility::makeInstance(BackendLayout::class, 'dummy', 'dummy', []);
            $pageRow = BackendUtility::getRecord('pages', $contentRecord['pid']);
            $pageLayoutContext = GeneralUtility::makeInstance(PageLayoutContext::class, $pageRow, $backendLayout);
            $gridColumn = GeneralUtility::makeInstance(GridColumn::class, $pageLayoutContext, []);
            $columnItem = GeneralUtility::makeInstance(GridColumnItem::class, $pageLayoutContext, $gridColumn, $contentRecord);
            return $columnItem->getPreview();
        }
        return $content;
    }
}