<?php 
/** 
 * Helper functions for displaying a list of items in an ajaxified HTML table. 
 * 
 * @package WordPress 
 * @subpackage List_Table 
 * @since 3.1.0 
 */ 
 
/** 
 * Fetches an instance of a WP_List_Table class. 
 * 
 * @since 3.1.0 
 * 
 * @global string $hook_suffix 
 * 
 * @param string $class_name The type of the list table, which is the class name. 
 * @param array  $args       Optional. Arguments to pass to the class. Accepts 'screen'. 
 * @return WP_List_Table|false List table object on success, false if the class does not exist. 
 */ 
function _get_list_table( $class_name, $args = array() ) { 
    $core_classes = array( 
        // Site Admin. 
        'WP_Posts_List_Table'                         => 'posts', 
        'WP_Media_List_Table'                         => 'media', 
        'WP_Terms_List_Table'                         => 'terms', 
        'WP_Users_List_Table'                         => 'users', 
        'WP_Comments_List_Table'                      => 'comments', 
        'WP_Post_Comments_List_Table'                 => array( 'comments', 'post-comments' ), 
        'WP_Links_List_Table'                         => 'links', 
        'WP_Plugin_Install_List_Table'                => 'plugin-install', 
        'WP_Themes_List_Table'                        => 'themes', 
        'WP_Theme_Install_List_Table'                 => array( 'themes', 'theme-install' ), 
        'WP_Plugins_List_Table'                       => 'plugins', 
        'WP_Application_Passwords_List_Table'         => 'application-passwords', 
 
        // Network Admin. 
        'WP_MS_Sites_List_Table'                      => 'ms-sites', 
        'WP_MS_Users_List_Table'                      => 'ms-users', 
        'WP_MS_Themes_List_Table'                     => 'ms-themes', 
 
        // Privacy requests tables. 
        'WP_Privacy_Data_Export_Requests_List_Table'  => 'privacy-data-export-requests', 
        'WP_Privacy_Data_Removal_Requests_List_Table' => 'privacy-data-removal-requests', 
    ); 
 
    if ( isset( $core_classes[ $class_name ] ) ) { 
        foreach ( (array) $core_classes[ $class_name ] as $required ) { 
            require_once ABSPATH . 'wp-admin/includes/class-wp-' . $required . '-list-table.php'; 
        } 
 
        if ( isset( $args['screen'] ) ) { 
            $args['screen'] = convert_to_screen( $args['screen'] ); 
        } elseif ( isset( $GLOBALS['hook_suffix'] ) ) { 
            $args['screen'] = get_current_screen(); 
        } else { 
            $args['screen'] = null; 
        } 
 
        /** 
         * Filters the list table class to instantiate. 
         * 
         * @since 6.1.0 
         * 
         * @param string $class_name The list table class to use. 
         * @param array  $args       An array containing _get_list_table() arguments. 
         */ 
        $custom_class_name = apply_filters( 'wp_list_table_class_name', $class_name, $args ); 
 
        if ( is_string( $custom_class_name ) && class_exists( $custom_class_name ) ) { 
            $class_name = $custom_class_name; 
        } 
 
        return new $class_name( $args ); 
    } 
 
    return false; 
} 
 
/** 
 * Register column headers for a particular screen. 
 * 
 * @see get_column_headers(), print_column_headers(), get_hidden_columns() 
 * 
 * @since 2.7.0 
 * 
 * @param string    $screen The handle for the screen to register column headers for. This is 
 *                          usually the hook name returned by the `add_*_page()` functions. 
 * @param string[] $columns An array of columns with column IDs as the keys and translated 
 *                          column names as the values. 
 */ 
function register_column_headers( $screen, $columns ) { 
    new _WP_List_Table_Compat( $screen, $columns ); 
} 
 
/** 
 * Prints column headers for a particular screen. 
 * 
 * @since 2.7.0 
 * 
 * @param string|WP_Screen $screen  The screen hook name or screen object. 
 * @param bool             $with_id Whether to set the ID attribute or not. 
 */ 
function print_column_headers( $screen, $with_id = true ) { 
    $wp_list_table = new _WP_List_Table_Compat( $screen ); 
 
    $wp_list_table->print_column_headers( $with_id ); 
} 
 
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