1<?php
2namespace TYPO3\CMS\Frontend\ContentObject;
3
4/*
5 * This file is part of the TYPO3 CMS project.
6 *
7 * It is free software; you can redistribute it and/or modify it under
8 * the terms of the GNU General Public License, either version 2
9 * of the License, or any later version.
10 *
11 * For the full copyright and license information, please read the
12 * LICENSE.txt file that was distributed with this source code.
13 *
14 * The TYPO3 project - inspiring people to share!
15 */
16
17use TYPO3\CMS\Core\Resource\File;
18
19/**
20 * Interface for classes which hook into \TYPO3\CMS\Frontend\ContentObject and do additional getImgResource processing
21 */
22interface FileLinkHookInterface
23{
24    /**
25     * Finds alternative previewImage for given File.
26     *
27     * @param File $file
28     * @return File
29     * @abstract
30     */
31    public function getPreviewImage(File $file);
32}
33