Title: Bulk_Theme_Upgrader_Skin
Published: April 25, 2014
Last modified: May 20, 2026

---

# class Bulk_Theme_Upgrader_Skin {}

## In this article

 * [Description](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#description)
    - [See also](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#see-also)
 * [Methods](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#methods)
 * [Source](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#changelog)

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

Bulk Theme Upgrader Skin for WordPress Theme Upgrades.

## 󠀁[Description](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#description)󠁿

### 󠀁[See also](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#see-also)󠁿

 * [Bulk_Upgrader_Skin](https://developer.wordpress.org/reference/classes/bulk_upgrader_skin/)

## 󠀁[Methods](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/?output_format=md#methods)󠁿

| Name | Description | 
| [Bulk_Theme_Upgrader_Skin::add_strings](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/add_strings/) | Sets up the strings used in the update process. | 
| [Bulk_Theme_Upgrader_Skin::after](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/after/) | Performs an action following a bulk theme update. | 
| [Bulk_Theme_Upgrader_Skin::before](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/before/) | Performs an action before a bulk theme update. | 
| [Bulk_Theme_Upgrader_Skin::bulk_footer](https://developer.wordpress.org/reference/classes/bulk_theme_upgrader_skin/bulk_footer/) | Displays the footer following the bulk update process. |

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

    ```php
    class Bulk_Theme_Upgrader_Skin extends Bulk_Upgrader_Skin {

    	/**
    	 * Theme info.
    	 *
    	 * The Theme_Upgrader::bulk_upgrade() method will fill this in
    	 * with info retrieved from the Theme_Upgrader::theme_info() method,
    	 * which in turn calls the wp_get_theme() function.
    	 *
    	 * @since 3.0.0
    	 * @var WP_Theme|false The theme's info object, or false.
    	 */
    	public $theme_info = false;

    	/**
    	 * Sets up the strings used in the update process.
    	 *
    	 * @since 3.0.0
    	 */
    	public function add_strings() {
    		parent::add_strings();
    		/* translators: 1: Theme name, 2: Number of the theme, 3: Total number of themes being updated. */
    		$this->upgrader->strings['skin_before_update_header'] = __( 'Updating Theme %1$s (%2$d/%3$d)' );
    	}

    	/**
    	 * Performs an action before a bulk theme update.
    	 *
    	 * @since 3.0.0
    	 *
    	 * @param string $title
    	 */
    	public function before( $title = '' ) {
    		parent::before( $this->theme_info->display( 'Name' ) );
    	}

    	/**
    	 * Performs an action following a bulk theme update.
    	 *
    	 * @since 3.0.0
    	 *
    	 * @param string $title
    	 */
    	public function after( $title = '' ) {
    		parent::after( $this->theme_info->display( 'Name' ) );
    		$this->decrement_update_count( 'theme' );
    	}

    	/**
    	 * Displays the footer following the bulk update process.
    	 *
    	 * @since 3.0.0
    	 */
    	public function bulk_footer() {
    		parent::bulk_footer();

    		$update_actions = array(
    			'themes_page'  => sprintf(
    				'<a href="%s" target="_parent">%s</a>',
    				self_admin_url( 'themes.php' ),
    				__( 'Go to Themes page' )
    			),
    			'updates_page' => sprintf(
    				'<a href="%s" target="_parent">%s</a>',
    				self_admin_url( 'update-core.php' ),
    				__( 'Go to WordPress Updates page' )
    			),
    		);

    		if ( ! current_user_can( 'switch_themes' ) && ! current_user_can( 'edit_theme_options' ) ) {
    			unset( $update_actions['themes_page'] );
    		}

    		/**
    		 * Filters the list of action links available following bulk theme updates.
    		 *
    		 * @since 3.0.0
    		 *
    		 * @param string[] $update_actions Array of theme action links.
    		 * @param WP_Theme $theme_info     Theme object for the last-updated theme.
    		 */
    		$update_actions = apply_filters( 'update_bulk_theme_complete_actions', $update_actions, $this->theme_info );

    		if ( ! empty( $update_actions ) ) {
    			$this->feedback( implode( ' | ', (array) $update_actions ) );
    		}
    	}
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-admin/includes/class-bulk-theme-upgrader-skin.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-admin/includes/class-bulk-theme-upgrader-skin.php#L18)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/class-bulk-theme-upgrader-skin.php#L18-L105)

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

| Uses | Description | 
| [Bulk_Upgrader_Skin](https://developer.wordpress.org/reference/classes/bulk_upgrader_skin/)`wp-admin/includes/class-bulk-upgrader-skin.php` |

Generic Bulk Upgrader Skin for WordPress Upgrades.

  |

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

| Version | Description | 
| [4.6.0](https://developer.wordpress.org/reference/since/4.6.0/) | Moved to its own file from wp-admin/includes/class-wp-upgrader-skins.php. | 
| [3.0.0](https://developer.wordpress.org/reference/since/3.0.0/) | Introduced. |

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