public static function ContentSave($content)
 {
     $r = $_REQUEST;
     $old = null;
     if (isset($r['post_ID']) && isset($r['action'])) {
         if ($r['action'] == 'editpost') {
             $old = get_post($r['post_ID']);
         } elseif ($r['action'] == 'autosave') {
             $old = get_post($r['post_id']);
         }
         if ($old instanceof WP_Post || is_object($old)) {
             $oldContent = $old->post_content;
             GFontsDB::ContentSave($old->ID, $oldContent, $content);
         }
     }
     return $content;
 }