9.5/_menu_item_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\ViewHelpers\ModuleLayoutViewHelper;

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\Core\ViewHelper\ViewHelperVariableContainer;

use TYPO3Fluid\Fluid\View\Exception;


class ‪MenuItemViewHelper extends AbstractViewHelper

{

    use CompileWithRenderStatic;


    public function ‪initializeArguments()

    {

        parent::initializeArguments();

        $this->registerArgument('label', 'string', 'Label of the menu item', true);

        $this->registerArgument('uri', 'string', 'Action uri', true);

    }


    public static function ‪renderStatic(

        array $arguments,

        \Closure $renderChildrenClosure,

        RenderingContextInterface $renderingContext

    ) {

        $viewHelperVariableContainer = $renderingContext->getViewHelperVariableContainer();

        ‪self::ensureProperNesting($viewHelperVariableContainer);


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

        $menuItem = $menu->makeMenuItem();

        $menuItem->setTitle($arguments['label']);

        $menuItem->setHref($arguments['uri']);

        $menuItem->setActive(self::isCurrentUri($arguments['uri']));

        $menu->addMenuItem($menuItem);

    }


    private static function ‪ensureProperNesting(ViewHelperVariableContainer $viewHelperVariableContainer): void

    {

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

            throw new Exception(sprintf('%s must be nested in <f.be.moduleLayout.menu> ViewHelper', self::class), 1531235592);

        }

    }


    protected static function ‪isCurrentUri(string $uri): bool

    {

        return GeneralUtility::getIndpEnv('REQUEST_URI') === $uri;

    }

}