AbstractBackendViewHelper.php

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<?php
namespace TYPO3\CMS\Fluid\ViewHelpers\Be;

use \TYPO3\CMS\Core\Utility\GeneralUtility;

/*                                                                        *
 * This script is backported from the TYPO3 Flow package "TYPO3.Fluid".   *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, 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!                         *
 *                                                                        */
abstract class AbstractBackendViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper {

    public function getDocInstance() {
        if ($this->viewHelperVariableContainer->exists(
            'TYPO3\\CMS\\Fluid\\ViewHelpers\\Be\\AbstractBackendViewHelper',
            'DocumentTemplate'
        )
        ) {
            $doc = $this->viewHelperVariableContainer->get(
                'TYPO3\\CMS\\Fluid\\ViewHelpers\\Be\\AbstractBackendViewHelper',
                'DocumentTemplate'
            );
        } else {
            $doc = $this->createDocInstance();
            $doc->backPath = $GLOBALS['BACK_PATH'];
            $this->viewHelperVariableContainer->add(
                'TYPO3\\CMS\\Fluid\\ViewHelpers\\Be\\AbstractBackendViewHelper',
                'DocumentTemplate',
                $doc
            );
        }

        return $doc;
    }

    protected function createDocInstance() {
        if (
            isset($GLOBALS['SOBE']) &&
            is_object($GLOBALS['SOBE']) &&
            isset($GLOBALS['SOBE']->doc) &&
            $GLOBALS['SOBE']->doc instanceof \TYPO3\CMS\Backend\Template\DocumentTemplate
        ) {
            GeneralUtility::deprecationLog('Usage of $GLOBALS[\'SOBE\'] is deprecated since 6.0 and will be removed in 6.2 ->getDocInstance() should be used instead');
            $doc = $GLOBALS['SOBE']->doc;
        } else {
            $doc = GeneralUtility::makeInstance('TYPO3\\CMS\\Backend\\Template\\DocumentTemplate');
            if (!isset($GLOBALS['SOBE'])) {
                $GLOBALS['SOBE'] = new \stdClass();
            }
            if (!isset($GLOBALS['SOBE']->doc)) {
                $GLOBALS['SOBE']->doc = $doc;
            }
        }

        return $doc;
    }
}