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File name : IconExtension.php

Content :

<?php

/*
 * This file is part of the Kimai time-tracking app.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace App\Form\Extension;

use Symfony\Component\Form\AbstractTypeExtension;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\OptionsResolver\OptionsResolver;

/**
 * Allows to register custom icons at form fields
 */
class IconExtension extends AbstractTypeExtension
{
    public static function getExtendedTypes(): iterable
    {
        return [TextType::class];
    }

/**
     * @param FormView $view
     * @param FormInterface $form
     * @param array $options
     */
    public function buildView(FormView $view, FormInterface $form, array $options)
    {
        $view->vars['icon'] = $options['icon'] ?? null;
    }

/**
     * @param OptionsResolver $resolver
     */
    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefined(['icon']);
        $resolver->setAllowedTypes('icon', 'string');
        $resolver->setDefault('icon', '');
    }
}

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