9.5/_option_view_helper_8php_source.html

<?php

namespace ‪TYPO3\CMS\Fluid\ViewHelpers\Form\Select;


/*

 * 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\Fluid\ViewHelpers\Form\SelectViewHelper;


class ‪OptionViewHelper extends ‪\TYPO3\CMS\Fluid\ViewHelpers\Form\AbstractFormFieldViewHelper

{

    protected ‪$tagName = 'option';


    public function ‪initializeArguments()

    {

        $this->registerUniversalTagAttributes();

        $this->registerArgument('selected', 'boolean', 'If set, overrides automatic detection of selected state for this option.');

        $this->registerArgument('additionalAttributes', 'array', 'Additional tag attributes. They will be added directly to the resulting HTML tag.');

        $this->registerArgument('data', 'array', 'Additional data-* attributes. They will each be added with a "data-" prefix.');

        $this->registerTagAttribute('value', 'mixed', 'Value to be inserted in HTML tag - must be convertible to string!');

    }


    public function ‪render()

    {

        if ($this->arguments['selected'] ?? $this->‪isValueSelected($this->arguments['value'])) {

            $this->tag->addAttribute('selected', 'selected');

        }

        $childContent = $this->renderChildren();

        $this->tag->setContent($childContent);

        $value = $this->arguments['value'] ?? $childContent;

        $this->tag->addAttribute('value', $value);

        $parentRequestedFormTokenFieldName = $this->renderingContext->getViewHelperVariableContainer()->get(

            SelectViewHelper::class,

            'registerFieldNameForFormTokenGeneration'

        );

        if ($parentRequestedFormTokenFieldName) {

            // parent (select field) has requested this option must add one more

            // entry in the token generation registry for one additional potential

            // value of the field. Happens when "multiple" is true on parent.

            $this->‪registerFieldNameForFormTokenGeneration($parentRequestedFormTokenFieldName);

        }

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

    }


    protected function ‪isValueSelected($value)

    {

        $selectedValue = $this->renderingContext->getViewHelperVariableContainer()->get(SelectViewHelper::class, 'selectedValue');

        if (is_array($selectedValue)) {

            return in_array($value, $selectedValue);

        }

        if ($selectedValue instanceof \Iterator) {

            return in_array($value, iterator_to_array($selectedValue));

        }

        return $value == $selectedValue;

    }

}