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typo3/sysext/beuser/Classes/ViewHelpers/PermissionsViewHelper.php

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+<?php
+namespace TYPO3\CMS\Beuser\ViewHelpers;
+
+/*
+ * 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\Extbase\Utility\LocalizationUtility;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+
+/**
+ * Render permission icon group (user / group / others) of the "Access" module.
+ *
+ * Most of that could be done in fluid directly, but this ViewHelper
+ * is much better performance wise.
+ * @internal
+ */
+class PermissionsViewHelper extends AbstractViewHelper
+{
+    use CompileWithRenderStatic;
+
+    /**
+     * As this ViewHelper renders HTML, the output must not be escaped.
+     *
+     * @var bool
+     */
+    protected $escapeOutput = false;
+
+    /**
+     * @var array Cached labels for a single permission mask like "Delete page"
+     */
+    protected static $permissionLabels = [];
+
+    /**
+     * Initializes the arguments
+     */
+    public function initializeArguments()
+    {
+        $this->registerArgument('permission', 'int', 'Current permission', true);
+        $this->registerArgument('scope', 'string', '"user" / "group" / "everybody"', true);
+        $this->registerArgument('pageId', 'int', '', true);
+    }
+
+    /**
+     * Return permissions.
+     *
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param RenderingContextInterface $renderingContext
+     * @return string
+     * @throws \TYPO3Fluid\Fluid\Core\ViewHelper\Exception
+     */
+    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
+    {
+        $masks = [1, 16, 2, 4, 8];
+
+        if (empty(static::$permissionLabels)) {
+            foreach ($masks as $mask) {
+                static::$permissionLabels[$mask] = LocalizationUtility::translate(
+                    'LLL:EXT:beuser/Resources/Private/Language/locallang_mod_permission.xlf:' . $mask,
+                    'be_user'
+                );
+            }
+        }
+
+        $icon = '';
+        foreach ($masks as $mask) {
+            if ($arguments['permission'] & $mask) {
+                $permissionClass = 'fa-check text-success';
+                $mode = 'delete';
+            } else {
+                $permissionClass = 'fa-times text-danger';
+                $mode = 'add';
+            }
+
+            $label = static::$permissionLabels[$mask];
+            $icon .= '<span style="cursor:pointer"'
+                . ' title="' . htmlspecialchars($label) . '"'
+                . ' data-toggle="tooltip"'
+                . ' data-page="' . htmlspecialchars($arguments['pageId']) . '"'
+                . ' data-permissions="' . htmlspecialchars($arguments['permission']) . '"'
+                . ' data-who="' . htmlspecialchars($arguments['scope']) . '"'
+                . ' data-bits="' . htmlspecialchars($mask) . '"'
+                . ' data-mode="' . htmlspecialchars($mode) . '"'
+                . ' class="t3-icon change-permission fa ' . htmlspecialchars($permissionClass) . '"></span>';
+        }
+
+        return '<span id="' . htmlspecialchars($arguments['pageId'] . '_' . $arguments['scope']) . '">' . $icon . '</span>';
+    }
+}