<?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.
 */

/**
 * ### Render: Inline
 *
 * Render as string containing Fluid as if it were
 * part of the template currently being rendered.
 *
 * Environment (template variables etc.) is cloned
 * but not re-merged after rendering, which means that
 * any and all changes in variables that happen while
 * rendering this inline code will be destroyed after
 * sub-rendering is finished.
 *
 * @author Claus Due <claus@namelesscoder.net>
 * @package Vhs
 * @subpackage ViewHelpers\Render
 */
class InlineViewHelper extends AbstractRenderViewHelper {

	/**
	 * Initialize arguments
	 *
	 * @return void
	 */
	public function initializeArguments() {
		parent::initializeArguments();
		$this->registerArgument('namespaces', 'array', 'Optional additional/overridden namespaces, array("ns" => "Tx_MyExt_ViewHelpers")', FALSE, array());
	}

	/**
	 * Renders an outside string as if it were Fluid code,
	 * using additional (or overridden) namespaces if so
	 * desired.
	 *
	 * @param string $content
	 * @return string
	 */
	public function render($content = NULL) {
		if (NULL === $content) {
			$content = $this->renderChildren();
		}
		$namespaces = $this->getPreparedNamespaces();
		$namespaceHeader = implode(LF, $namespaces);
		foreach ($namespaces as $namespace) {
			$content = str_replace($namespace, '', $content);
		}
		$view = $this->getPreparedClonedView();
		$view->setTemplateSource($namespaceHeader . $content);
		return $this->renderView($view);
	}

}