ActionMenuViewHelper.php

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

/*                                                                        *
 * 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!                         *
 *                                                                        */
class ActionMenuViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractTagBasedViewHelper implements \TYPO3\CMS\Fluid\Core\ViewHelper\Facets\ChildNodeAccessInterface
{
    protected $tagName = 'select';

    protected $childNodes = array();

    public function setChildNodes(array $childNodes)
    {
        $this->childNodes = $childNodes;
    }

    public function render($defaultController = null)
    {
        $this->tag->addAttribute('onchange', 'jumpToUrl(this.options[this.selectedIndex].value, this);');
        $options = '';
        foreach ($this->childNodes as $childNode) {
            if ($childNode instanceof \TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\ViewHelperNode) {
                $options .= $childNode->evaluate($this->renderingContext);
            }
        }
        $this->tag->setContent($options);
        return '<div class="docheader-funcmenu">' . $this->tag->render() . '</div>';
    }
}