<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Form
 *
 * @copyright   Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

jimport('joomla.html.html');
jimport('joomla.form.formfield');

/**
 * Form Field class for the Joomla Framework.
 *
 * @package     Joomla.Platform
 * @subpackage  Form
 * @since       11.1
 */
class JFormFieldUsergroup extends JFormField
{
    /**
     * The form field type.
     *
     * @var     string
     * @since   11.1
     */
    protected $type = 'Usergroup';

    /**
     * Method to get the field input markup.
     *
     * @return  string  The field input markup.
     * @since   11.1
     */
    protected function getInput()
    {
        // Initialize variables.
        $options = array();
        $attr = '';

        // Initialize some field attributes.
        $attr .= $this->element['class'] ? ' class="'.(string) $this->element['class'].'"' : '';
        $attr .= ((string) $this->element['disabled'] == 'true') ? ' disabled="disabled"' : '';
        $attr .= $this->element['size'] ? ' size="'.(int) $this->element['size'].'"' : '';
        $attr .= $this->multiple ? ' multiple="multiple"' : '';

        // Initialize JavaScript field attributes.
        $attr .= $this->element['onchange'] ? ' onchange="'.(string) $this->element['onchange'].'"' : '';

        // Iterate through the children and build an array of options.
        foreach ($this->element->children() as $option) {

            // Only add <option /> elements.
            if ($option->getName() != 'option') {
                continue;
            }

            // Create a new option object based on the <option /> element.
            $tmp = JHtml::_('select.option', (string) $option['value'], trim((string) $option), 'value', 'text', ((string) $option['disabled']=='true'));

            // Set some option attributes.
            $tmp->class = (string) $option['class'];

            // Set some JavaScript option attributes.
            $tmp->onclick = (string) $option['onclick'];

            // Add the option object to the result set.
            $options[] = $tmp;
        }

        return JHtml::_('access.usergroup', $this->name, $this->value, $attr, $options, $this->id);
    }
}