9.5/_flash_messages_view_helper_8php_source.html

<?php

namespace ‪TYPO3\CMS\Fluid\ViewHelpers;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Core\Messaging\FlashMessageRendererResolver;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;

use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;

use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;

use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;


class ‪FlashMessagesViewHelper extends AbstractViewHelper

{

    use CompileWithRenderStatic;


    protected ‪$escapeOutput = false;


    public function ‪initializeArguments()

    {

        $this->registerArgument('queueIdentifier', 'string', 'Flash-message queue to use');

        $this->registerArgument('as', 'string', 'The name of the current flashMessage variable for rendering inside');

    }


    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)

    {

        $as = $arguments['as'];

        $queueIdentifier = $arguments['queueIdentifier'] ?? null;

        $flashMessages = $renderingContext->getControllerContext()

            ->getFlashMessageQueue($queueIdentifier)->getAllMessagesAndFlush();

        if ($flashMessages === null || count($flashMessages) === 0) {

            return '';

        }


        if ($as === null) {

            return GeneralUtility::makeInstance(FlashMessageRendererResolver::class)

                ->resolve()

                ->render($flashMessages);

        }

        $templateVariableContainer = $renderingContext->getVariableProvider();

        $templateVariableContainer->add($as, $flashMessages);

        $content = $renderChildrenClosure();

        $templateVariableContainer->remove($as);


        return $content;

    }

}