public function widget( $args, $instance ) {
		if ( ! is_shop() && ! is_product_taxonomy() ) {
			return;
		}

		$_chosen_attributes = WC_Query::get_layered_nav_chosen_attributes();
		$taxonomy           = $this->get_instance_taxonomy( $instance );
		$query_type         = $this->get_instance_query_type( $instance );
		$display_type       = $this->get_instance_display_type( $instance );

		if ( ! taxonomy_exists( $taxonomy ) ) {
			return;
		}

		$terms = get_terms( $taxonomy, array( 'hide_empty' => '1' ) );

		if ( 0 === count( $terms ) ) {
			return;
		}

		ob_start();

		$this->widget_start( $args, $instance );

		if ( 'dropdown' === $display_type ) {
			wp_enqueue_script( 'selectWoo' );
			wp_enqueue_style( 'select2' );
			$found = $this->layered_nav_dropdown( $terms, $taxonomy, $query_type );
		} else {
			$found = $this->layered_nav_list( $terms, $taxonomy, $query_type );
		}

		$this->widget_end( $args );

		// Force found when option is selected - do not force found on taxonomy attributes.
		if ( ! is_tax() && is_array( $_chosen_attributes ) && array_key_exists( $taxonomy, $_chosen_attributes ) ) {
			$found = true;
		}

		if ( ! $found ) {
			ob_end_clean();
		} else {
			echo ob_get_clean(); // @codingStandardsIgnoreLine
		}
	}