<?php
/**
 * Base class for <input> elements
 *
 * PHP version 5
 *
 * LICENSE
 *
 * This source file is subject to BSD 3-Clause License that is bundled
 * with this package in the file LICENSE and available at the URL
 * https://raw.githubusercontent.com/pear/HTML_QuickForm2/trunk/docs/LICENSE
 *
 * @category  HTML
 * @package   HTML_QuickForm2
 * @author    Alexey Borzov <avb@php.net>
 * @author    Bertrand Mansion <golgote@mamasam.com>
 * @copyright 2006-2021 Alexey Borzov <avb@php.net>, Bertrand Mansion <golgote@mamasam.com>
 * @license   https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
 * @link      https://pear.php.net/package/HTML_QuickForm2
 */

/**
 * Base class for simple HTML_QuickForm2 elements (not Containers)
 */
require_once 'HTML/QuickForm2/Element.php';

/**
 * Base class for <input> elements
 *
 * @category HTML
 * @package  HTML_QuickForm2
 * @author   Alexey Borzov <avb@php.net>
 * @author   Bertrand Mansion <golgote@mamasam.com>
 * @license  https://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
 * @version  Release: 2.2.2
 * @link     https://pear.php.net/package/HTML_QuickForm2
 */
class HTML_QuickForm2_Element_Input extends HTML_QuickForm2_Element
{
   /**
    * 'type' attribute should not be changeable
    * @var array
    */
    protected $watchedAttributes = ['id', 'name', 'type'];

    protected function onAttributeChange($name, $value = null)
    {
        if ('type' == $name) {
            throw new HTML_QuickForm2_InvalidArgumentException(
                "Attribute 'type' is read-only"
            );
        }
        parent::onAttributeChange($name, $value);
    }

    public function getType()
    {
        return $this->attributes['type'];
    }

    public function setValue($value)
    {
        $this->setAttribute('value', (string)$value);
        return $this;
    }

    public function getRawValue()
    {
        return $this->getAttribute('disabled')? null: $this->getAttribute('value');
    }

    public function __toString()
    {
        if ($this->frozen) {
            return $this->getFrozenHtml();
        } else {
            return '<input' . $this->getAttributes(true) . ' />';
        }
    }

   /**
    * Returns the field's value without HTML tags
    * @return string
    */
    protected function getFrozenHtml()
    {
        $value = $this->getAttribute('value');
        return ('' != $value
                ? htmlspecialchars($value, ENT_QUOTES, self::getOption(self::OPTION_CHARSET))
                : '&nbsp;'
            ) . $this->getPersistentContent();
    }
}
?>