function siteorigin_widgets_init_and_register_field_class_loader() { $field_class_loader = new SiteOrigin_Widget_Field_Class_Loader(); $class_prefixes = array('SiteOrigin_Widget_Field_'); $class_prefixes = apply_filters('siteorigin_widgets_field_class_prefixes', $class_prefixes); $field_class_loader->add_class_prefixes($class_prefixes); $class_paths = array(plugin_dir_path(__FILE__)); $class_paths = apply_filters('siteorigin_widgets_field_class_paths', $class_paths); $field_class_loader->add_class_paths($class_paths); $field_class_loader->register(); }