<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\DomCrawler\Field;

/**

 * InputFormField represents an input form field (an HTML input tag).

 *

 * For inputs with type of file, checkbox, or radio, there are other more

 * specialized classes (cf. FileFormField and ChoiceFormField).

 *

 * @author Fabien Potencier <fabien@symfony.com>

 *

 * @api

 */

class InputFormField extends FormField

{

    /**

     * Initializes the form field.

     *

     * @throws \LogicException When node type is incorrect

     */

    protected function initialize()

    {

        if ('input' != $this->node->nodeName) {

            throw new \LogicException(sprintf('An InputFormField can only be created from an input tag (%s given).', $this->node->nodeName));

        }

        if ('checkbox' == $this->node->getAttribute('type')) {

            throw new \LogicException('Checkboxes should be instances of ChoiceFormField.');

        }

        if ('file' == $this->node->getAttribute('type')) {

            throw new \LogicException('File inputs should be instances of FileFormField.');

        }

        $this->value = $this->node->getAttribute('value');

    }

}