Initial commit

typo3conf/ext/vhs/Classes/ViewHelpers/Render/AbstractRenderViewHelper.php

@@ -0,0 +1,113 @@
+<?php
+namespace FluidTYPO3\Vhs\ViewHelpers\Render;
+
+/*
+ * 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\Extbase\Configuration\ConfigurationManagerInterface;
+use TYPO3\CMS\Extbase\Mvc\View\ViewInterface;
+use TYPO3\CMS\Extbase\Object\ObjectManagerInterface;
+use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
+
+/**
+ * ### Base class for all rendering ViewHelpers.
+ *
+ * If errors occur they can be graciously ignored and
+ * replaced by a small error message or the error itself.
+ *
+ * @author Claus Due <claus@namelesscoder.net>
+ * @package Vhs
+ * @subpackage ViewHelpers\Render
+ */
+abstract class AbstractRenderViewHelper extends AbstractViewHelper {
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Object\ObjectManagerInterface
+	 */
+	protected $objectManager;
+
+	/**
+	 * @var \TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface
+	 */
+	protected $configurationManager;
+
+	/**
+	 * @param \TYPO3\CMS\Extbase\Object\ObjectManagerInterface $objectManager
+	 * @return void
+	 */
+	public function injectObjectManager(ObjectManagerInterface $objectManager) {
+		$this->objectManager = $objectManager;
+	}
+
+	/**
+	 * @param \TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface $configurationManager
+	 * @return void
+	 */
+	public function injectConfigurationManager(ConfigurationManagerInterface $configurationManager) {
+		$this->configurationManager = $configurationManager;
+	}
+
+	/**
+	 * Initialize arguments
+	 *
+	 * @return void
+	 */
+	public function initializeArguments() {
+		$this->registerArgument('onError', 'string', 'Optional error message to display if error occur while rendering. If NULL, lets the error Exception pass trough (and break rendering)', FALSE, NULL);
+		$this->registerArgument('graceful', 'boolean', 'If forced to FALSE, errors are not caught but rather "transmitted" as every other error would be', FALSE, FALSE);
+	}
+
+	/**
+	 * @return array
+	 */
+	protected function getPreparedNamespaces() {
+		$namespaces = array();
+		foreach ((array) $this->arguments['namespaces'] as $namespaceIdentifier => $namespace) {
+			$addedOverriddenNamespace = '{namespace ' . $namespaceIdentifier . '=' . $namespace . '}';
+			array_push($namespaces, $addedOverriddenNamespace);
+		}
+		return $namespaces;
+	}
+
+	/**
+	 * @return \TYPO3\CMS\Fluid\View\StandaloneView
+	 */
+	protected function getPreparedClonedView() {
+		$view = $this->getPreparedView();
+		$view->setControllerContext(clone $this->controllerContext);
+		$view->setFormat($this->controllerContext->getRequest()->getFormat());
+		$view->assignMultiple($this->templateVariableContainer->getAll());
+		return $view;
+	}
+
+	/**
+	 * @return \TYPO3\CMS\Fluid\View\StandaloneView
+	 */
+	protected function getPreparedView() {
+		/** @var $view \TYPO3\CMS\Fluid\View\StandaloneView */
+		$view = $this->objectManager->get('TYPO3\\CMS\\Fluid\\View\\StandaloneView');
+		return $view;
+	}
+
+	/**
+	 * @param \TYPO3\CMS\Extbase\Mvc\View\ViewInterface $view
+	 * @throws \Exception
+	 * @return string
+	 */
+	protected function renderView(ViewInterface $view) {
+		try {
+			$content = $view->render();
+		} catch (\Exception $error) {
+			if (!$this->arguments['graceful']) {
+				throw $error;
+			}
+			$content = $error->getMessage() . ' (' . $error->getCode() . ')';
+		}
+		return $content;
+	}
+
+}