9.5/_menu_view_helper_8php_source.html

<?php

declare(strict_types = 1);

namespace ‪TYPO3\CMS\Backend\ViewHelpers\ModuleLayout;


/*

 * 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!

 */


use ‪TYPO3\CMS\Backend\Template\Components\Menu\Menu;

use ‪TYPO3\CMS\Backend\Template\ModuleTemplate;

use ‪TYPO3\CMS\Backend\ViewHelpers\ModuleLayoutViewHelper;

use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;

use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;

use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;

use TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperVariableContainer;

use TYPO3Fluid\Fluid\View\Exception;


class ‪MenuViewHelper extends AbstractViewHelper

{

    use CompileWithRenderStatic;


    public function ‪initializeArguments()

    {

        $this->registerArgument('identifier', 'string', 'Identifier of the menu', true);

    }


    public static function ‪renderStatic(

        array $arguments,

        \Closure $renderChildrenClosure,

        RenderingContextInterface $renderingContext

    ) {

        $viewHelperVariableContainer = $renderingContext->getViewHelperVariableContainer();

        ‪self::ensureProperNesting($viewHelperVariableContainer);


        $moduleTemplate = $viewHelperVariableContainer->get(ModuleLayoutViewHelper::class, ModuleTemplate::class);

        $menu = $moduleTemplate->getDocHeaderComponent()->getMenuRegistry()->makeMenu();

        $menu->setIdentifier($arguments['identifier']);


        $viewHelperVariableContainer->add(ModuleLayoutViewHelper::class, Menu::class, $menu);

        $renderChildrenClosure();

        $moduleTemplate->getDocHeaderComponent()->getMenuRegistry()->addMenu($menu);

        $viewHelperVariableContainer->remove(ModuleLayoutViewHelper::class, Menu::class);

    }


    private static function ‪ensureProperNesting(ViewHelperVariableContainer $viewHelperVariableContainer): void

    {

        if (!$viewHelperVariableContainer->exists(ModuleLayoutViewHelper::class, ModuleTemplate::class)) {

            throw new Exception(sprintf('%s must be nested in <f.be.moduleLayout> ViewHelper', self::class), 1531235715);

        }

        if ($viewHelperVariableContainer->exists(ModuleLayoutViewHelper::class, Menu::class)) {

            throw new Exception(sprintf('%s can not be nested in <f.be.moduleLayout.menu> ViewHelper', self::class), 1531235777);

        }

    }

}