<?php
/*                                                                        *
 * This script belongs to the FLOW3 package "Fluid".                      *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License as published by the *
 * Free Software Foundation, either version 3 of the License, or (at your *
 * option) any later version.                                             *
 *                                                                        *
 * This script is distributed in the hope that it will be useful, but     *
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN-    *
 * TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser       *
 * General Public License for more details.                               *
 *                                                                        *
 * You should have received a copy of the GNU Lesser General Public       *
 * License along with the script.                                         *
 * If not, see http://www.gnu.org/licenses/lgpl.html                      *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

/**
 * The abstract base class for all backend view helpers
 * Note: backend view helpers are still experimental!
 *
 * @version $Id:
 * @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License, version 3 or later
 *
 * @author Steffen Kamper <info@sk-typo3.de>
 * @author Bastian Waidelich <bastian@typo3.org>
 * @license http://www.gnu.org/copyleft/gpl.html
 */
abstract class Tx_Fluid_ViewHelpers_Be_AbstractBackendViewHelper extends Tx_Fluid_Core_ViewHelper_AbstractViewHelper {

	/**
	* Gets instance of template if exists or create a new one.
	* Saves instance in viewHelperVariableContainer
	*
	* @return template $doc
	*/
	public function getDocInstance() {
		if (!isset($GLOBALS['SOBE']->doc)) {
			$doc = t3lib_div::makeInstance('template');
			$doc->backPath = $GLOBALS['BACK_PATH'];
			if (is_object($GLOBALS['SOBE'])) {
				$GLOBALS['SOBE']->doc = $doc;
			}
		} else {
			$doc = $GLOBALS['SOBE']->doc;
		}
		return $doc;
	}

}
?>
