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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * radio type form element
 *
 * Contains HTML class for a radio type element
 *
 * @package   core_form
 * @copyright 2006 Jamie Pratt <me@jamiep.org>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once('HTML/QuickForm/radio.php');
require_once('templatable_form_element.php');
/**
 * radio type form element
 *
 * HTML class for a radio type element
 *
 * @package   core_form
 * @category  form
 * @copyright 2006 Jamie Pratt <me@jamiep.org>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class MoodleQuickForm_radio extends HTML_QuickForm_radio implements templatable {
    use templatable_form_element;

/** @var string html for help button, if empty then no help */
    var $_helpbutton='';

/**
     * constructor
     *
     * @param string $elementName (optional) name of the radio element
     * @param string $elementLabel (optional) label for radio element
     * @param string $text (optional) Text to put after the radio element
     * @param string $value (optional) default value
     * @param mixed $attributes (optional) Either a typical HTML attribute string
     *              or an associative array
     */
    public function __construct($elementName=null, $elementLabel=null, $text=null, $value=null, $attributes=null) {
        parent::__construct($elementName, $elementLabel, $text, $value, $attributes);
    }

/**
     * Old syntax of class constructor. Deprecated in PHP7.
     *
     * @deprecated since Moodle 3.1
     */
    public function MoodleQuickForm_radio($elementName=null, $elementLabel=null, $text=null, $value=null, $attributes=null) {
        debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
        self::__construct($elementName, $elementLabel, $text, $value, $attributes);
    }

/**
     * get html for help button
     *
     * @return string html for help button
     */
    function getHelpButton(){
        return $this->_helpbutton;
    }

/**
     * Slightly different container template when frozen.
     *
     * @return string
     */
    function getElementTemplateType(){
        if ($this->_flagFrozen){
            return 'static';
        } else {
            return 'default';
        }
    }

/**
     * Returns the disabled field. Accessibility: the return "( )" from parent
     * class is not acceptable for screenreader users, and we DO want a label.
     *
     * @return string
     */
    function getFrozenHtml()
    {
        $output = '<input type="radio" disabled="disabled" id="'.$this->getAttribute('id').'" ';
        if ($this->getChecked()) {
            $output .= 'checked="checked" />'.$this->_getPersistantData();
        } else {
            $output .= '/>';
        }
        return $output;
    }

/**
     * Returns HTML for advchecbox form element.
     *
     * @return string
     */
    function toHtml()
    {
        return '<span>' . parent::toHtml() . '</span>';
    }
}