PermissionsViewHelper.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\Beuser\ViewHelpers;
 
use ‪TYPO3\CMS\Core\Imaging\IconFactory;
use ‪TYPO3\CMS\Core\Imaging\IconProvider\SvgIconProvider;
use TYPO3\CMS\Core\Imaging\IconSize;
use ‪TYPO3\CMS\Core\Localization\LanguageService;
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;
 
final class ‪PermissionsViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;
 
    protected const ‪MASKS = [1, 16, 2, 4, 8];
 
    protected ‪$escapeOutput = false;
 
    protected static array ‪$cachePermissionLabels = [];
 
    public function ‪initializeArguments(): void
    {
        $this->registerArgument('permission', 'int', 'Current permission', true);
        $this->registerArgument('scope', 'string', '"user" / "group" / "everybody"', true);
        $this->registerArgument('pageId', 'int', 'Page ID to evaluate permission for', true);
    }
 
    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext): string
    {
        $iconFactory = GeneralUtility::makeInstance(IconFactory::class);
 
        $icon = '';
        foreach (self::MASKS as $mask) {
            if ($arguments['permission'] & $mask) {
                $iconIdentifier = 'actions-check';
                $iconClass = 'text-success';
                $mode = 'delete';
            } else {
                $iconIdentifier = 'actions-close';
                $iconClass = 'text-danger';
                $mode = 'add';
            }
 
            $label = ‪self::resolvePermissionLabel($mask);
            $icon .= '<button'
                . ' aria-label="' . htmlspecialchars($label) . ', ' . htmlspecialchars($mode) . ', ' . htmlspecialchars($arguments['scope']) . '"'
                . ' title="' . htmlspecialchars($label) . '"'
                . ' data-page="' . htmlspecialchars((string)$arguments['pageId']) . '"'
                . ' data-permissions="' . htmlspecialchars((string)$arguments['permission']) . '"'
                . ' data-who="' . htmlspecialchars($arguments['scope']) . '"'
                . ' data-bits="' . htmlspecialchars((string)$mask) . '"'
                . ' data-mode="' . htmlspecialchars($mode) . '"'
                . ' class="btn btn-permission change-permission ' . htmlspecialchars($iconClass) . '">'
                . $iconFactory->getIcon($iconIdentifier, IconSize::SMALL)->render(‪SvgIconProvider::MARKUP_IDENTIFIER_INLINE)
                . '</button>';
        }
 
        return '<span id="' . htmlspecialchars($arguments['pageId'] . '_' . $arguments['scope']) . '">' . $icon . '</span>';
    }
 
    protected static function ‪resolvePermissionLabel(int $mask): string
    {
        if (!isset(self::$cachePermissionLabels[$mask])) {
            self::$cachePermissionLabels[$mask] = htmlspecialchars(self::getLanguageService()->sL(
                'LLL:EXT:beuser/Resources/Private/Language/locallang_mod_permission.xlf:' . $mask,
            ));
        }
        return self::$cachePermissionLabels[$mask];
    }
 
    protected static function ‪getLanguageService(): ‪LanguageService
    {
        return ‪$GLOBALS['LANG'];
    }
}