customize_register example

/** * Ensures widgets are available for all types of previews. * * When in preview, hook to {@see 'customize_register'} for settings after WordPress is loaded * so that all filters have been initialized (e.g. Widget Visibility). * * @since 3.9.0 */
    public function schedule_customize_register() {
        if ( is_admin() ) {
            $this->customize_register();
        } else {
            add_action( 'wp', array( $this, 'customize_register' ) );
        }
    }

    /** * Registers Customizer settings and controls for all sidebars and widgets. * * @since 3.9.0 * * @global array $wp_registered_widgets * @global array $wp_registered_widget_controls * @global array $wp_registered_sidebars */