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Current File : /var/www/surf/TYPO3/vendor/typo3/cms-fluid/Classes/ViewHelpers/Form/UploadViewHelper.php

<?php

declare(strict_types=1);

/*
 * 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!
 */

namespace TYPO3\CMS\Fluid\ViewHelpers\Form;

/**
 * A ViewHelper which generates an :html:`<input type="file">` HTML element.
 * Make sure to set ``enctype="multipart/form-data"`` on the form!
 *
 * Examples
 * ========
 *
 * Example::
 *
 *    <f:form.upload name="file" />
 *
 * Output::
 *
 *    <input type="file" name="file" />
 */
final class UploadViewHelper extends AbstractFormFieldViewHelper
{
    /**
     * @var string
     */
    protected $tagName = 'input';

    public function initializeArguments(): void
    {
        parent::initializeArguments();
        $this->registerTagAttribute('disabled', 'string', 'Specifies that the input element should be disabled when the page loads');
        $this->registerTagAttribute('multiple', 'string', 'Specifies that the file input element should allow multiple selection of files');
        $this->registerTagAttribute('accept', 'string', 'Specifies the allowed file extensions to upload via comma-separated list, example ".png,.gif"');
        $this->registerArgument('errorClass', 'string', 'CSS class to set if there are errors for this ViewHelper', false, 'f3-form-error');
        $this->registerUniversalTagAttributes();
    }

    public function render(): string
    {
        $name = $this->getName();
        $allowedFields = ['name', 'type', 'tmp_name', 'error', 'size'];
        foreach ($allowedFields as $fieldName) {
            $this->registerFieldNameForFormTokenGeneration($name . '[' . $fieldName . ']');
        }
        $this->tag->addAttribute('type', 'file');

        if (isset($this->arguments['multiple'])) {
            $this->tag->addAttribute('name', $name . '[]');
        } else {
            $this->tag->addAttribute('name', $name);
        }

        $this->setErrorClassAttribute();
        return $this->tag->render();
    }
}