<?php
/**
 * @package   Astroid Framework
 * @author    JoomDev https://www.joomdev.com
 * @copyright Copyright (C) 2009 - 2020 JoomDev.
 * @license https://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 or Later
 */
defined('JPATH_PLATFORM') or die;

/**
 * Form Field class for the Joomla Platform.
 * Provides an input field for files
 *
 * @link   http://www.w3.org/TR/html-markup/input.file.html#input.file
 * @since  11.1
 */
class JFormFieldFile extends JFormField {

   /**
    * The form field type.
    *
    * @var    string
    * @since  11.1
    */
   protected $type = 'File';

   /**
    * The accepted file type list.
    *
    * @var    mixed
    * @since  3.2
    */
   protected $accept;

   /**
    * Name of the layout being used to render the field
    *
    * @var    string
    * @since  3.6
    */
   protected $layout = 'joomla.form.field.file';

   /**
    * 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 'accept':
            return $this->accept;
      }

      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 'accept':
            $this->accept = (string) $value;
            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) {
         $this->accept = (string) $this->element['accept'];
      }

      return $return;
   }

   /**
    * Method to get the field input markup for the file field.
    * Field attributes allow specification of a maximum file size and a string
    * of accepted file extensions.
    *
    * @return  string  The field input markup.
    *
    * @note    The field does not include an upload mechanism.
    * @see     JFormFieldMedia
    * @since   11.1
    */
   protected function getInput() {
      return $this->getRenderer($this->layout)->render($this->getLayoutData());
   }

   /**
    * Method to get the data to be passed to the layout for rendering.
    *
    * @return  array
    *
    * @since   3.6
    */
   protected function getLayoutData() {
      $data = parent::getLayoutData();

      $extraData = array(
          'accept' => $this->accept,
          'multiple' => $this->multiple,
          'ngShow' => $this->element['ngShow'],
          'ngHide' => $this->element['ngHide'],
          'ngRequired' => $this->element['ngRequired'],
      );

      return array_merge($data, $extraData);
   }

}