Initial commit

typo3conf/ext/vhs/Classes/ViewHelpers/CaseViewHelper.php

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+<?php
+namespace FluidTYPO3\Vhs\ViewHelpers;
+
+/*
+ * This file is part of the FluidTYPO3/Vhs project under GPLv2 or later.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.md file that was distributed with this source code.
+ */
+
+use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
+
+/**
+ * ### Case for SwitchViewHelper
+ *
+ * Used inside `v:switch` to trigger on specific values.
+ *
+ * ### Example
+ *
+ *     <v:switch value="{variable}">
+ *         <v:case case="someValue" break="TRUE">
+ *             <!-- do whatever, if {variable} == 'someValue' -->
+ *         </v:case>
+ *         <v:case case="default">
+ *             <!-- the case "default" is a reserved keyword which acts as the default case. -->
+ *         </v:case>
+ *     </v:switch>
+ *
+ * @author Claus Due <claus@namelesscoder.net>
+ * @package Vhs
+ * @subpackage ViewHelpers
+ */
+class CaseViewHelper extends AbstractViewHelper {
+
+	/**
+	 * Initialize
+	 *
+	 * @return void
+	 */
+	public function initializeArguments() {
+		$this->registerArgument('case', 'string', 'Value which triggers this case - reserved name "default" used for default case', TRUE);
+		$this->registerArgument('break', 'boolean', 'If TRUE, breaks switch on encountering this case', FALSE, FALSE);
+	}
+
+	/**
+	 * Renders the case and returns array of content and break-boolean
+	 *
+	 * @return array
+	 */
+	public function render() {
+		$matchesCase = (boolean) ($this->viewHelperVariableContainer->get('FluidTYPO3\\Vhs\\ViewHelpers\\SwitchViewHelper', 'switchCaseValue') == $this->arguments['case']);
+		$mustContinue = $this->viewHelperVariableContainer->get('FluidTYPO3\\Vhs\\ViewHelpers\\SwitchViewHelper', 'switchContinueUntilBreak');
+		$isDefault = (boolean) ('default' === $this->arguments['case']);
+		if (TRUE === $matchesCase || TRUE == $mustContinue || TRUE === $isDefault) {
+			if (TRUE === $this->arguments['break']) {
+				$this->viewHelperVariableContainer->addOrUpdate('FluidTYPO3\\Vhs\\ViewHelpers\\SwitchViewHelper', 'switchBreakRequested', TRUE);
+			} else {
+				$this->viewHelperVariableContainer->addOrUpdate('FluidTYPO3\\Vhs\\ViewHelpers\\SwitchViewHelper', 'switchContinueUntilBreak', TRUE);
+			}
+			return $this->renderChildren();
+		}
+		return NULL;
+	}
+
+}