ModuleLayoutViewHelper.php

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<?php
 
declare(strict_types=1);
 
/*
 * 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\Backend\ViewHelpers;
 
use ‪TYPO3\CMS\Backend\Template\ModuleTemplate;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
use TYPO3Fluid\Fluid\View\Exception;
 
class ‪ModuleLayoutViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;
 
    protected ‪$escapeOutput = false;
 
    public static function ‪renderStatic(
        array $arguments,
        \Closure $renderChildrenClosure,
        RenderingContextInterface $renderingContext
    ) {
        $viewHelperVariableContainer = $renderingContext->getViewHelperVariableContainer();
        if ($viewHelperVariableContainer->exists(self::class, ModuleTemplate::class)) {
            throw new Exception('ModuleLayoutViewHelper can only be used once per module.', 1483292643);
        }
 
        $moduleTemplate = GeneralUtility::makeInstance(ModuleTemplate::class);
        $moduleTemplate->setFlashMessageQueue($renderingContext->getControllerContext()->getFlashMessageQueue());
 
        $viewHelperVariableContainer->add(self::class, ModuleTemplate::class, $moduleTemplate);
        $moduleTemplate->setContent($renderChildrenClosure());
        $viewHelperVariableContainer->remove(self::class, ModuleTemplate::class);
 
        return $moduleTemplate->renderContent();
    }
}