PreviewProcessing.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\Core\Resource\OnlineMedia\Processing;
 
use ‪TYPO3\CMS\Core\Resource\OnlineMedia\Helpers\OnlineMediaHelperRegistry;
use ‪TYPO3\CMS\Core\Resource\Processing\LocalImageProcessor;
use ‪TYPO3\CMS\Core\Resource\Processing\ProcessorInterface;
use ‪TYPO3\CMS\Core\Resource\Processing\TaskInterface;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
final class ‪PreviewProcessing implements ‪ProcessorInterface
{
    public function ‪canProcessTask(‪TaskInterface $task): bool
    {
        return $task->‪getType() === 'Image'
            && in_array($task->‪getName(), ['Preview', 'CropScaleMask'], true)
            && ($helperRegistry = ‪OnlineMediaHelperRegistry::getInstance())->hasOnlineMediaHelper(($sourceFile = $task->‪getSourceFile())->getExtension())
            && ($previewImageFile = $helperRegistry->getOnlineMediaHelper($sourceFile)->getPreviewImage($sourceFile))
            && !empty($previewImageFile)
            && file_exists($previewImageFile);
    }
 
    public function ‪processTask(‪TaskInterface $task): void
    {
        $file = $task->‪getSourceFile();
        GeneralUtility::makeInstance(LocalImageProcessor::class)
            ->processTaskWithLocalFile(
                $task,
                ‪OnlineMediaHelperRegistry::getInstance()
                    ->getOnlineMediaHelper($file)
                    ->getPreviewImage($file)
            );
    }
}