Display Active Plugins First

<?php
/*
Plugin Name: Display Active Plugins First
Plugin URI:
Description: Changes plugins display order in the admin, showing active plugins first.
Version: 1.0
Author: Sergey Biryukov
Author URI: http://profiles.wordpress.org/sergeybiryukov/
*/

class Display_Active_Plugins_First {

    function __construct() {
        add_action( 'admin_head-plugins.php', array( $this, 'sort_plugins_by_status' ) );
    }

    function sort_plugins_by_status() {
        global $wp_list_table;

        uksort( $wp_list_table->items, array( $this, '_order_callback' ) );
    }

    function _order_callback( $a, $b ) {
        global $wp_list_table;

        $a_active = is_plugin_active( $a );
        $b_active = is_plugin_active( $b );

        if ( $a_active && $b_active ) {
            return strcasecmp( $wp_list_table->items[ $a ]['Name'], $wp_list_table->items[ $b ]['Name'] );
        } elseif ( $a_active && ! $b_active ) {
            return -1;
        } elseif ( ! $a_active && $b_active ) {
            return 1;
        } else {
            return strcasecmp( $wp_list_table->items[ $a ]['Name'], $wp_list_table->items[ $b ]['Name'] );
        }
    }

}

new Display_Active_Plugins_First;