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<?php
/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2013 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.
 * Provides a meter to show value in a range.
 *
 * @link   https://html.spec.whatwg.org/multipage/input.html#text-(type=text)-state-and-search-state-(type=search)
 * @since  3.2
 */
class MeterField extends FormField
{
	/**
	 * The form field type.
	 *
	 * @var    string
	 * @since  3.2
	 */
	protected $type = 'Meter';

/**
	 * Whether the field is active or not.
	 *
	 * @var    boolean
	 * @since  3.2
	 */
	protected $active = false;

/**
	 * Whether the field is animated or not.
	 *
	 * @var    boolean
	 * @since  3.2
	 */
	protected $animated = true;

/**
	 * The max value of the progress bar
	 *
	 * @var    boolean
	 * @since  4.0.0
	 */
	protected $max = 100;

/**
	 * The striped class for the progress bar
	 *
	 * @var    boolean
	 * @since  4.0.0
	 */
	protected $striped;

/**
	 * Name of the layout being used to render the field
	 *
	 * @var    string
	 * @since  3.7
	 */
	protected $layout = 'joomla.form.field.meter';

/**
	 * 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 'active':
			case 'width':
			case 'animated':
			case 'color':
				return $this->$name;
		}

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 'width':
			case 'color':
				$this->$name = (string) $value;
				break;

case 'active':
				$value = (string) $value;
				$this->active = ($value === 'true' || $value === $name || $value === '1');
				break;

case 'animated':
				$value = (string) $value;
				$this->animated = !($value === 'false' || $value === 'off' || $value === '0');
				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)
	{
		$return = parent::setup($element, $value, $group);

if ($return)
		{
			$this->width = isset($this->element['width']) ? (string) $this->element['width'] : '';
			$this->color = isset($this->element['color']) ? (string) $this->element['color'] : '';

$active       = (string) $this->element['active'];
			$this->active = ($active === 'true' || $active === 'on' || $active === '1');

$animated       = (string) $this->element['animated'];
			$this->animated = !($animated === 'false' || $animated === 'off' || $animated === '0');
		}

return $return;
	}

/**
	 * Method to get the field input markup.
	 *
	 * @return  string  The field input markup.
	 *
	 * @since   3.2
	 */
	protected function getInput()
	{
		// Trim the trailing line in the layout file
		return rtrim($this->getRenderer($this->layout)->render($this->getLayoutData()), PHP_EOL);
	}

/**
	 * Method to get the data to be passed to the layout for rendering.
	 *
	 * @return  array
	 *
	 * @since 3.5
	 */
	protected function getLayoutData()
	{
		$data = parent::getLayoutData();

// Initialize some field attributes.
		$extraData = array(
			'width'    => $this->width,
			'color'    => $this->color,
			'animated' => $this->animated,
			'active'   => $this->active,
			'max'      => $this->max,
			'min'      => $this->min,
		);

return array_merge($data, $extraData);
	}
}