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<?php /** * Joomla! Content Management System * * @copyright (C) 2009 Open Source Matters, Inc. <https://www.joomla.org> * @license GNU General Public License version 2 or later; see LICENSE.txt */ namespace Joomla\CMS\Form\Field; \defined('JPATH_PLATFORM') or die; use Joomla\CMS\Form\FormField; /** * Form Field class for the Joomla Platform. * Single checkbox field. * This is a boolean field with null for false and the specified option for true * * @link https://html.spec.whatwg.org/multipage/input.html#checkbox-state-(type=checkbox) * @see CheckboxField * @since 1.7.0 */ class CheckboxField extends FormField { /** * The form field type. * * @var string * @since 1.7.0 */ protected $type = 'Checkbox'; /** * Name of the layout being used to render the field * * @var string * @since 4.0.0 */ protected $layout = 'joomla.form.field.checkbox'; /** * The checked state of checkbox field. * * @var boolean * @since 3.2 */ protected $checked = false; /** * Method to get certain otherwise inaccessible properties from the form field object. * * @param string $name The property name for which to get the value. * * @return mixed The property value or null. * * @since 3.2 */ public function __get($name) { switch ($name) { case 'checked': return $this->checked; } return parent::__get($name); } /** * Method to set certain otherwise inaccessible properties of the form field object. * * @param string $name The property name for which to set the value. * @param mixed $value The value of the property. * * @return void * * @since 3.2 */ public function __set($name, $value) { switch ($name) { case 'checked': $value = (string) $value; $this->checked = ($value === 'true' || $value == $name || $value === '1'); break; default: parent::__set($name, $value); } } /** * Method to attach a Form object to the field. * * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * * @return boolean True on success. * * @see FormField::setup() * @since 3.2 */ public function setup(\SimpleXMLElement $element, $value, $group = null) { // Handle the default attribute $default = (string) $element['default']; if ($default) { $test = $this->form->getValue((string) $element['name'], $group); $value = ($test == $default) ? $default : null; } $return = parent::setup($element, $value, $group); if ($return) { $checked = (string) $this->element['checked']; $this->checked = ($checked === 'true' || $checked === 'checked' || $checked === '1'); empty($this->value) || $this->checked ? null : $this->checked = true; } return $return; } /** * Method to get the data to be passed to the layout for rendering. * * @return array * * @since 4.0.0 */ protected function getLayoutData() { $data = parent::getLayoutData(); $data['value'] = $this->default ?: '1'; $data['checked'] = $this->checked || $this->value; return $data; } }