UserFileInlineLabelService.php

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<?php
namespace TYPO3\CMS\Core\Resource\Service;

use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Utility\LocalizationUtility;

class UserFileInlineLabelService {

    public function getInlineLabel(array &$params) {
        $sysFileFields = isset($params['options']['sys_file']) && is_array($params['options']['sys_file'])
            ? $params['options']['sys_file']
            : array();

        if (!count($sysFileFields)) {
            // Nothing to do
            $params['title'] = $params['row']['uid'];
            return;
        }

        $fileInfo = BackendUtility::splitTable_Uid($params['row']['uid_local'], 2);
        $fileRecord = BackendUtility::getRecord($fileInfo[0], $fileInfo[1]);

        // Configuration
        $title = array();
        foreach ($sysFileFields as $field) {
            $value = '';
            if ($field === 'title') {
                if (isset($params['row']['title'])) {
                    $fullTitle = $params['row']['title'];
                } else {
                    try {
                        $metaDataRepository = GeneralUtility::makeInstance('TYPO3\\CMS\\Core\\Resource\\Index\\MetaDataRepository');
                        $metaData = $metaDataRepository->findByFileUid($fileRecord['uid']);
                        $fullTitle = $metaData['title'];
                    } catch (\TYPO3\CMS\Core\Resource\Exception\InvalidUidException $e) {
                    }
                }

                $value = BackendUtility::getRecordTitlePrep(htmlspecialchars($fullTitle));
            } else {
                if (isset($params['row'][$field])) {
                    $value = htmlspecialchars($params['row'][$field]);
                } elseif (isset($fileRecord[$field])) {
                    $value = BackendUtility::getRecordTitlePrep($fileRecord[$field]);
                }
            }
            if (!strlen($value)) {
                continue;
            }
            $labelText = LocalizationUtility::translate('LLL:EXT:lang/locallang_tca.xlf:sys_file.' . $field, 'lang');
            $title[] = '<dt>' . htmlspecialchars($labelText) . '</dt>' . '<dd>' . $value . '</dd>';
        }
        $params['title'] = '<dl>' . implode('', $title) . '</dl>';
    }
}