Keep menu-group open when viewing revisions

[knallcharge]

Feature Request

I currently have an admin-group in my menu with two links, one to the user-list and one to the audit-controller, configured like this:

      grpadmin:
        label: 'Administration'
        icon: 'fa fa-users'
        roles: [ ROLE_ADMIN ]
        items:
          - admin.user
          - route: 'simple_things_entity_audit_home'
            label: 'Audit'

So when I click on the menu entry it calls the route simple_things_entity_audit_home and keeps the menu-group open, but when I navigate through the different pages of the audit-controller, the menu-group closes.

What I'd like to achieve is to leave the menu-group open (which is the default behaviour for all default sonata-routes e.g. clicking on "edit user" the "Administration"-group stays open with the "User"-entry highlighted) when navigating through all routes named simple_things_entity_* (viewrevision, viewentity_detail, viewentity and compare).

Is there a way to implement this?

[knallcharge]

I have "solved" this by adding a custom MenuBuilderListener, but don't know if this is the best way to go, maybe someone can advise.

EventListener/MenuBuilderListener.php

<?php
declare(strict_types=1);

namespace App\EventListener;

use Sonata\AdminBundle\Event\ConfigureMenuEvent;
use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
use Symfony\Component\HttpFoundation\RequestStack;

/**
 * Class MenuBuilderListener
 *
 * @package App\EventListener
 */
#[AsEventListener(event: 'sonata.admin.event.configure.menu.sidebar', method: 'openMenu', priority: 1)]
final readonly class MenuBuilderListener
{
    /**
     * @param RequestStack $requestStack
     */
    public function __construct(private RequestStack $requestStack) {}

    /**
     * @param ConfigureMenuEvent $event
     *
     * @return void
     */
    public function openMenu(ConfigureMenuEvent $event): void
    {
        $route = $this->requestStack->getCurrentRequest()?->attributes->get('_route');

        if (str_starts_with($route, 'simple_things_entity_audit_')) {
            $menu = $event->getMenu();
            $menu->getChild('grpadmin')?->setAttribute('class', 'active');
            $menu->getChild('grpadmin')?->getChild('Audit')?->setAttribute('class', 'active');
        }
    }
}

If someone wants to use this: Replace "grpadmin" with the name of your group that contains "Audit".