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typo3/sysext/reports/Classes/ViewHelpers/IconViewHelper.php

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+<?php
+namespace TYPO3\CMS\Reports\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\Core\Utility\ExtensionManagementUtility;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\PathUtility;
+use TYPO3\CMS\Fluid\ViewHelpers\Be\AbstractBackendViewHelper;
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+
+/**
+ * Render the icon of a report
+ *
+ * @internal
+ */
+class IconViewHelper extends AbstractBackendViewHelper
+{
+    /**
+     * As this ViewHelper renders HTML, the output must not be escaped.
+     *
+     * @var bool
+     */
+    protected $escapeOutput = false;
+
+    /**
+     * Initializes the arguments
+     */
+    public function initializeArguments()
+    {
+        parent::initializeArguments();
+        $this->registerArgument('icon', 'string', 'Icon to be used', true);
+        $this->registerArgument('title', 'string', 'Optional title', false, '');
+    }
+
+    /**
+     * Renders the icon
+     *
+     * @return string Content rendered image
+     */
+    public function render()
+    {
+        return static::renderStatic(
+            $this->arguments,
+            $this->buildRenderChildrenClosure(),
+            $this->renderingContext
+        );
+    }
+
+    /**
+     * @param array $arguments
+     * @param \Closure $renderChildrenClosure
+     * @param RenderingContextInterface $renderingContext
+     *
+     * @return string
+     */
+    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
+    {
+        $icon = $arguments['icon'];
+        $title = $arguments['title'];
+
+        $icon = GeneralUtility::getFileAbsFileName($icon);
+
+        // use the extension icon from EXT:reports as fallback
+        if (!$icon) {
+            $fallbackIconPath = ExtensionManagementUtility::extPath('reports');
+            $icon = ExtensionManagementUtility::getExtensionIcon($fallbackIconPath, true);
+        }
+
+        return '<img src="' . htmlspecialchars(PathUtility::getAbsoluteWebPath($icon))
+                . '" width="16" height="16" title="' . htmlspecialchars($title)
+                . '" alt="' . htmlspecialchars($title) . '" />';
+    }
+}