Title: WP_Customize_Widgets::selective_refresh_init
Published: April 12, 2016
Last modified: February 24, 2026

---

# WP_Customize_Widgets::selective_refresh_init()

## In this article

 * [Source](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#wp--skip-link--target)

Adds hooks for selective refresh.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#source)󠁿

    ```php
    public function selective_refresh_init() {
    	if ( ! current_theme_supports( 'customize-selective-refresh-widgets' ) ) {
    		return;
    	}
    	add_filter( 'dynamic_sidebar_params', array( $this, 'filter_dynamic_sidebar_params' ) );
    	add_filter( 'wp_kses_allowed_html', array( $this, 'filter_wp_kses_allowed_data_attributes' ) );
    	add_action( 'dynamic_sidebar_before', array( $this, 'start_dynamic_sidebar' ) );
    	add_action( 'dynamic_sidebar_after', array( $this, 'end_dynamic_sidebar' ) );
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-customize-widgets.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/class-wp-customize-widgets.php#L1796)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wp-customize-widgets.php#L1796-L1804)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#related)󠁿

| Uses | Description | 
| [current_theme_supports()](https://developer.wordpress.org/reference/functions/current_theme_supports/)`wp-includes/theme.php` |

Checks a theme’s support for a given feature.

  | 
| [add_filter()](https://developer.wordpress.org/reference/functions/add_filter/)`wp-includes/plugin.php` |

Adds a callback function to a filter hook.

  | 
| [add_action()](https://developer.wordpress.org/reference/functions/add_action/)`wp-includes/plugin.php` |

Adds a callback function to an action hook.

  |

[Show 1 more](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#)
[Show less](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_customize_widgets/selective_refresh_init/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.5.0](https://developer.wordpress.org/reference/since/4.5.0/) | Introduced. |

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