[TASK] Move ViewHelper arguments to initializeArguments() in ext:install
[Packages/TYPO3.CMS.git] / typo3 / sysext / install / Classes / ViewHelpers / File / ExistsViewHelper.php
1 <?php
2 namespace TYPO3\CMS\Install\ViewHelpers\File;
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
17 use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
18 use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
19
20 /**
21 * Simple view helper to check if given file is a regular file
22 *
23 * = Examples =
24 *
25 * <code title="Default">
26 * <f:file.exists file="Absolute-path" />
27 * </code>
28 *
29 * <output>
30 * TRUE or FALSE
31 * </output>
32 *
33 * @internal
34 */
35 class ExistsViewHelper extends AbstractViewHelper
36 {
37 public function initializeArguments()
38 {
39 parent::initializeArguments();
40 $this->registerArgument('file', 'string', 'Absolute path', true);
41 }
42
43 /**
44 * Check if given file is a regular file
45 *
46 * @return bool
47 */
48 public function render()
49 {
50 return static::renderStatic(
51 $this->arguments,
52 $this->buildRenderChildrenClosure(),
53 $this->renderingContext
54 );
55 }
56
57 /**
58 * @param array $arguments
59 * @param \Closure $renderChildrenClosure
60 * @param RenderingContextInterface $renderingContext
61 *
62 * @return bool
63 */
64 public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
65 {
66 $file = $arguments['file'];
67
68 $result = false;
69 if (file_exists($file) && is_file($file)) {
70 $result = true;
71 }
72 return $result;
73 }
74 }