Initial commit - Typo3 11.5.41

typo3conf/ext/news/Classes/ViewHelpers/IfIsActiveViewHelper.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace GeorgRinger\News\ViewHelpers;
+
+/**
+ * This file is part of the "news" Extension for TYPO3 CMS.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ */
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractConditionViewHelper;
+use TYPO3Fluid\Fluid\Core\ViewHelper\ViewHelperInterface;
+
+/**
+ * ViewHelper to check if the current news item is rendered as single view on the same page
+ *
+ * # Example: Basic example
+ * <code>
+ * {n:ifIsActive(newsItem: newsItem, then: 'active', else: '')}
+ * </code>
+ * <output>
+ * Renders the string "active" if the current news item is active
+ * </output>
+ */
+class IfIsActiveViewHelper extends AbstractConditionViewHelper implements ViewHelperInterface
+{
+    public function initializeArguments()
+    {
+        $this->registerArgument('newsItem', 'object', 'News item', false);
+        parent::initializeArguments();
+    }
+
+    /**
+     * @param array|null $arguments
+     * @return bool
+     */
+    protected static function evaluateCondition($arguments = null): bool
+    {
+        $vars = GeneralUtility::_GET('tx_news_pi1');
+        return isset($vars['news']) && isset($arguments['newsItem']) && (int)$arguments['newsItem']->getUid() === (int)$vars['news'];
+    }
+
+    /**
+     * @return mixed
+     */
+    public function render()
+    {
+        if (static::evaluateCondition($this->arguments)) {
+            return $this->renderThenChild();
+        }
+        return $this->renderElseChild();
+    }
+}