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<?php
/**
* @package Joomla.Platform
* @subpackage Form
*
* @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
/**
* Form Field class for the Joomla Platform.
* Provides radio button inputs
*
* @package Joomla.Platform
* @subpackage Form
* @link http://www.w3.org/TR/html-markup/command.radio.html#command.radio
* @since 11.1
*/
class JFormFieldRadio extends JFormField
{
/**
* The form field type.
*
* @var string
* @since 11.1
*/
protected $type = 'Radio';
/**
* Method to get the radio button field input markup.
*
* @return string The field input markup.
*
* @since 11.1
*/
protected function getInput()
{
$html = array();
// Initialize some field attributes.
$class = !empty($this->class) ? ' class="radio ' . $this->class . '"' : ' class="radio"';
$required = $this->required ? ' required aria-required="true"' : '';
$autofocus = $this->autofocus ? ' autofocus' : '';
$disabled = $this->disabled ? ' disabled' : '';
$readonly = $this->readonly;
// Start the radio field output.
$html[] = '<fieldset id="' . $this->id . '"' . $class . $required . $autofocus . $disabled . ' >';
// Get the field options.
$options = $this->getOptions();
// Build the radio field output.
foreach ($options as $i => $option)
{
// Initialize some option attributes.
$checked = ((string) $option->value == (string) $this->value) ? ' checked="checked"' : '';
$class = !empty($option->class) ? ' class="' . $option->class . '"' : '';
$disabled = !empty($option->disable) || ($readonly && !$checked);
$disabled = $disabled ? ' disabled' : '';
// Initialize some JavaScript option attributes.
$onclick = !empty($option->onclick) ? ' onclick="' . $option->onclick . '"' : '';
$onchange = !empty($option->onchange) ? ' onchange="' . $option->onchange . '"' : '';
$html[] = '<input type="radio" id="' . $this->id . $i . '" name="' . $this->name . '" value="'
. htmlspecialchars($option->value, ENT_COMPAT, 'UTF-8') . '"' . $checked . $class . $required . $onclick
. $onchange . $disabled . ' />';
$html[] = '<label for="' . $this->id . $i . '"' . $class . ' >'
. JText::alt($option->text, preg_replace('/[^a-zA-Z0-9_\-]/', '_', $this->fieldname)) . '</label>';
$required = '';
}
// End the radio field output.
$html[] = '</fieldset>';
return implode($html);
}
/**
* Method to get the field options for radio buttons.
*
* @return array The field option objects.
*
* @since 11.1
*/
protected function getOptions()
{
$options = array();
foreach ($this->element->children() as $option)
{
// Only add <option /> elements.
if ($option->getName() != 'option')
{
continue;
}
$disabled = (string) $option['disabled'];
$disabled = ($disabled == 'true' || $disabled == 'disabled' || $disabled == '1');
// Create a new option object based on the <option /> element.
$tmp = JHtml::_(
'select.option', (string) $option['value'], trim((string) $option), 'value', 'text',
$disabled
);
// Set some option attributes.
$tmp->class = (string) $option['class'];
// Set some JavaScript option attributes.
$tmp->onclick = (string) $option['onclick'];
$tmp->onchange = (string) $option['onchange'];
// Add the option object to the result set.
$options[] = $tmp;
}
reset($options);
return $options;
}
}