SetSubtreesCommand.php

<?php

namespace Drupal\toolbar\Ajax;

use Drupal\Core\Ajax\CommandInterface;

/**
 * Defines an AJAX command that sets the toolbar subtrees.
 */
class SetSubtreesCommand implements CommandInterface {
    
    /**
     * The toolbar subtrees.
     *
     * @var array
     */
    protected $subtrees;
    
    /**
     * Constructs a SetSubtreesCommand object.
     *
     * @param array $subtrees
     *   The toolbar subtrees that will be set.
     */
    public function __construct($subtrees) {
        $this->subtrees = $subtrees;
    }
    
    /**
     * {@inheritdoc}
     */
    public function render() {
        return [
            'command' => 'setToolbarSubtrees',
            'subtrees' => array_map('strval', $this->subtrees),
        ];
    }

}