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<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Form
 *
 * @copyright   (C) 2009 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

/**
 * Form Field class for the Joomla Platform.
 * Text field for passwords
 *
 * @link   http://www.w3.org/TR/html-markup/input.password.html#input.password
 * @note   Two password fields may be validated as matching using JFormRuleEquals
 * @since  1.7.0
 */
class JFormFieldPassword extends JFormField
{
	/**
	 * Attach an unlock button and disable the input field,
	 * also remove the value from the output.
	 *
	 * @var    boolean
	 * @since  3.9.24
	 */
	protected $lock = false;

	/**
	 * The form field type.
	 *
	 * @var    string
	 * @since  1.7.0
	 */
	protected $type = 'Password';

	/**
	 * The threshold of password field.
	 *
	 * @var    integer
	 * @since  3.2
	 */
	protected $threshold = 66;

	/**
	 * The allowable maxlength of password.
	 *
	 * @var    integer
	 * @since  3.2
	 */
	protected $maxLength;

	/**
	 * Whether to attach a password strength meter or not.
	 *
	 * @var    boolean
	 * @since  3.2
	 */
	protected $meter = false;

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

	/**
	 * 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 'lock':
			case 'threshold':
			case 'maxLength':
			case 'meter':
				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)
	{
		$value = (string) $value;

		switch ($name)
		{
			case 'maxLength':
			case 'threshold':
				$this->$name = $value;
				break;

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

			default:
				parent::__set($name, $value);
		}
	}

	/**
	 * Method to attach a JForm 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     JFormField::setup()
	 * @since   3.2
	 */
	public function setup(SimpleXMLElement $element, $value, $group = null)
	{
		$return = parent::setup($element, $value, $group);

		if ($return)
		{
			$lock       = (string) $this->element['lock'];
			$this->lock = ($lock == 'true' || $lock == 'on' || $lock == '1');

			$this->maxLength = $this->element['maxlength'] ? (int) $this->element['maxlength'] : 99;
			$this->threshold = $this->element['threshold'] ? (int) $this->element['threshold'] : 66;

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

		return $return;
	}

	/**
	 * Method to get the field input markup for password.
	 *
	 * @return  string  The field input markup.
	 *
	 * @since   1.7.0
	 */
	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 3.7
	 */
	protected function getLayoutData()
	{
		$data = parent::getLayoutData();

		// Initialize some field attributes.
		$extraData = array(
			'lock'      => $this->lock,
			'maxLength' => $this->maxLength,
			'meter'     => $this->meter,
			'threshold' => $this->threshold,
		);

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