ImagePreviewRenderer.php

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<?php
 
/*
 * 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\Frontend\Hooks\PageLayoutView;
 
use ‪TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Backend\View\PageLayoutView;
use ‪TYPO3\CMS\Backend\View\PageLayoutViewDrawItemHookInterface;
 
class ‪ImagePreviewRenderer implements ‪PageLayoutViewDrawItemHookInterface
{
    public function ‪preProcess(
        ‪PageLayoutView &$parentObject,
        &$drawItem,
        &$headerContent,
        &$itemContent,
        array &$row
    ) {
        if ($row['CType'] === 'image') {
            if ($row['image']) {
                $itemContent .= $parentObject->‪linkEditContent($parentObject->‪getThumbCodeUnlinked($row, 'tt_content', 'image'), $row);
 
                $fileReferences = ‪BackendUtility::resolveFileReferences('tt_content', 'image', $row);
 
                if (!empty($fileReferences)) {
                    $linkedContent = '';
 
                    foreach ($fileReferences as $fileReference) {
                        $description = $fileReference->getDescription();
                        if ($description !== null && $description !== '') {
                            $linkedContent .= htmlspecialchars($description) . '<br />';
                        }
                    }
 
                    $itemContent .= $parentObject->‪linkEditContent($linkedContent, $row);
 
                    unset($linkedContent);
                }
            }
 
            $drawItem = false;
        }
    }
}