[TASK] Makes belog/IsExtensionLoadedViewHelper compilable
[Packages/TYPO3.CMS.git] / typo3 / sysext / belog / Classes / ViewHelpers / IsExtensionLoadedViewHelper.php
1 <?php
2 namespace TYPO3\CMS\Belog\ViewHelpers;
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 use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
17 use TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface;
18 use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
19
20 /**
21 * Returns true, if a specific extension is loaded
22 *
23 * @author Christian Kuhn <lolli@schwarzbu.ch>
24 * @internal
25 */
26 class IsExtensionLoadedViewHelper extends AbstractViewHelper {
27
28 /**
29 * Checks whether an extension is loaded.
30 *
31 * @param string $extensionKey The extension's key
32 * @return bool TRUE if extension is loaded, FALSE otherwise
33 */
34 public function render($extensionKey) {
35 return self::renderStatic(
36 array(
37 'extensionKey' => $extensionKey
38 ),
39 $this->buildRenderChildrenClosure(),
40 $this->renderingContext
41 );
42 }
43
44 /**
45 * @param array $arguments
46 * @param callable $renderChildrenClosure
47 * @param RenderingContextInterface $renderingContext
48 *
49 * @return string
50 */
51 static public function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext) {
52 return ExtensionManagementUtility::isLoaded($arguments['extensionKey']);
53 }
54 }