/**
  * Sanitize widget form values as they are saved.
  *
  * @see WP_Widget::update()
  *
  * @param array $new_instance Values just sent to be saved.
  * @param array $old_instance Previously saved values from database.
  *
  * @return array Updated safe values to be saved.
  */
 public function update($new_instance, $old_instance)
 {
     if (!class_exists('Facebook_Recommendations_Box')) {
         require_once dirname(dirname(__FILE__)) . '/class-facebook-recommendations-box.php';
     }
     $instance = array();
     if (!empty($new_instance['title'])) {
         $instance['title'] = strip_tags($new_instance['title']);
     }
     $box = Facebook_Recommendations_Box::fromArray($new_instance);
     if ($box) {
         $box_options = $box->toHTMLDataArray();
         if (isset($box_options['header'])) {
             if ($box_options['header'] === 'false') {
                 $box_options['header'] = false;
             } else {
                 $box_options['header'] = true;
             }
         }
         if (isset($box_options['border-color'])) {
             $box_options['border_color'] = $box_options['border-color'];
             unset($box_options['border-color']);
         }
         if (isset($box_options['max-age'])) {
             $box_options['max_age'] = absint($box_options['max-age']);
             unset($box_options['max-age']);
         }
         foreach (array('width', 'height') as $option) {
             $box_options[$option] = absint($box_options[$option]);
         }
         return array_merge($instance, $box_options);
     }
     return $instance;
 }
 /**
  * Convert the class to data-* attribute friendly associative array
  * will become data-key="value"
  * Exclude values if default
  *
  * @return array associative array
  */
 public function toHTMLDataArray()
 {
     $data = parent::toHTMLDataArray();
     if (isset($this->recommendations) && $this->recommendations === true) {
         $data['recommendations'] = 'true';
     }
     if (isset($this->filter)) {
         $data['filter'] = $this->filter;
     }
     return $data;
 }
 /**
  * convert an options array into an object
  *
  * @since 1.1
  * @param array $values associative array
  * @return Facebook_Recommendations_Box recommendations box object
  */
 public static function fromArray($values)
 {
     if (!is_array($values) || empty($values)) {
         return;
     }
     $box = new Facebook_Recommendations_Box();
     if (isset($values['site'])) {
         $box->setSite($values['site']);
     }
     if (isset($values['action'])) {
         if (is_string($values['action'])) {
             $box->addAction($values['action']);
         } else {
             if (is_array($values['action'])) {
                 foreach ($values['action'] as $action) {
                     $box->addAction($action);
                 }
             }
         }
     }
     if (isset($values['app_id'])) {
         $box->setAppID($values['app_id']);
     }
     if (isset($values['width'])) {
         $box->setWidth(absint($values['width']));
     }
     if (isset($values['height'])) {
         $box->setHeight(absint($values['height']));
     }
     if (isset($values['header']) && ($values['header'] === true || $values['header'] == 1 || $values['header'] === 'true')) {
         $box->showHeader();
     } else {
         $box->hideHeader();
     }
     if (isset($values['border_color'])) {
         $box->setBorderColor($values['border_color']);
     }
     if (isset($values['linktarget'])) {
         $box->setLinkTarget($values['linktarget']);
     }
     if (isset($values['max_age'])) {
         $box->setMaxAge(absint($values['max_age']));
     }
     if (isset($values['font'])) {
         $box->setFont($values['font']);
     }
     if (isset($values['colorscheme'])) {
         $box->setColorScheme($values['colorscheme']);
     }
     if (isset($values['ref'])) {
         $box->setReference($values['ref']);
     }
     return $box;
 }