manager.php

<?php
 
namespace Bitrix\UI\Toolbar;
 
use Bitrix\Main\ArgumentException;
 
final class Manager
{
    private static $instance;
    protected $toolbars = [];
 
    private function __construct()
    {}
 
    private function __clone()
    {}
 
    public static function getInstance()
    {
        if (!isset(self::$instance))
        {
            self::$instance = new Manager;
        }
 
        return self::$instance;
    }
 
    public function getToolbarById($id)
    {
        if (isset($this->toolbars[$id]))
        {
            return $this->toolbars[$id];
        }
 
        return null;
    }
 
    public function createToolbar($id, $options)
    {
        if (empty($id))
        {
            throw new ArgumentException("id is required", 'id');
        }
 
        $toolbar = new Toolbar($id, $options);
        $this->toolbars[$id] = $toolbar;
 
        return $toolbar;
    }
}