Initial commit

2018-04-02 08:07:38 +02:00
commit 7330c1ed3e
2054 changed files with 405203 additions and 0 deletions
--- a/typo3conf/ext/vhs/Classes/ViewHelpers/SwitchViewHelper.php
+++ b/typo3conf/ext/vhs/Classes/ViewHelpers/SwitchViewHelper.php
@@ -0,0 +1,139 @@
+<?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\Parser\SyntaxTree\ViewHelperNode;
+use TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
+use TYPO3\CMS\Fluid\Core\ViewHelper\Facets\ChildNodeAccessInterface;
+
+/**
+ * ### Switch ViewHelper
+ *
+ * Fluid implementation of PHP's switch($value) construct.
+ *
+ * ### 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 SwitchViewHelper extends AbstractViewHelper implements ChildNodeAccessInterface {
+
+	/**
+	 * @var array
+	 */
+	private $childNodes = array();
+
+	/**
+	 * @var mixed
+	 */
+	private $backup;
+
+	/**
+	 * Initialize
+	 * @return void
+	 */
+	public function initializeArguments() {
+		$this->registerArgument('value', 'string', 'Variable on which to switch - string, integer or number', TRUE);
+		$this->registerArgument('as', 'string', 'If specified, inserts the matched case tag content as variable using name from "as"');
+	}
+
+	/**
+	 * @param array $childNodes
+	 * @return void
+	 */
+	public function setChildNodes(array $childNodes) {
+		$this->childNodes = $childNodes;
+	}
+
+	/**
+	 * Renders the case in the switch which matches variable, else default case
+	 * @return string
+	 */
+	public function render() {
+		$content = '';
+		if (TRUE === method_exists($this, 'getRenderingContext')) {
+			$context = $this->getRenderingContext();
+		} else {
+			$context = $this->renderingContext;
+		}
+		if (TRUE === $context->getViewHelperVariableContainer()->exists('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchCaseValue')) {
+			$this->storeBackup($context);
+		}
+		$context->getViewHelperVariableContainer()->addOrUpdate('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchCaseValue', $this->arguments['value']);
+		$context->getViewHelperVariableContainer()->addOrUpdate('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchBreakRequested', FALSE);
+		$context->getViewHelperVariableContainer()->addOrUpdate('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchContinueUntilBreak', FALSE);
+		foreach ($this->childNodes as $childNode) {
+			if (TRUE === $childNode instanceof ViewHelperNode
+				&& $childNode->getViewHelperClassName() === 'FluidTYPO3\Vhs\ViewHelpers\CaseViewHelper') {
+				$content .= $childNode->evaluate($context);
+				$shouldBreak = $this->determineBooleanOf($context, 'switchBreakRequested');
+				if (TRUE === $shouldBreak) {
+					return $content;
+				}
+			}
+		}
+		$context->getViewHelperVariableContainer()->remove('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchCaseValue');
+		$context->getViewHelperVariableContainer()->remove('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchBreakRequested');
+		$context->getViewHelperVariableContainer()->remove('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchContinueUntilBreak');
+		if (NULL !== $this->backup) {
+			$this->restoreBackup($context);
+		}
+		if (TRUE === isset($this->arguments['as'])) {
+			$this->templateVariableContainer->add($this->arguments['as'], $content);
+			return NULL;
+		}
+		return $content;
+	}
+
+	/**
+	 * @param RenderingContextInterface $context
+	 * @return void
+	 */
+	protected function storeBackup(RenderingContextInterface $context) {
+		$this->backup = array(
+			$context->getViewHelperVariableContainer()->get('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchCaseValue'),
+			$this->determineBooleanOf($context, 'switchBreakRequested'),
+			$this->determineBooleanOf($context, 'switchContinueUntilBreak')
+		);
+	}
+
+	/**
+	 * @param RenderingContextInterface $context
+	 * @return void
+	 */
+	protected function restoreBackup(RenderingContextInterface $context) {
+		$context->getViewHelperVariableContainer()->add('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchCaseValue', $this->backup[0]);
+		$context->getViewHelperVariableContainer()->add('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchBreakRequested', $this->backup[1]);
+		$context->getViewHelperVariableContainer()->add('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', 'switchContinueUntilBreak', $this->backup[2]);
+	}
+
+	/**
+	 * @param RenderingContextInterface $context
+	 * @param mixed $var
+	 * @return boolean
+	 */
+	protected function determineBooleanOf($context, $var) {
+		if (TRUE === $context->getViewHelperVariableContainer()->exists('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', $var)) {
+			return $context->getViewHelperVariableContainer()->get('FluidTYPO3\Vhs\ViewHelpers\SwitchViewHelper', $var);
+		}
+		return FALSE;
+	}
+
+}