function MenuActiveTrail::doGetActiveTrailIds

Helper method for ::getActiveTrailIds().

File

core/lib/Drupal/Core/Menu/MenuActiveTrail.php, line 98

Class

MenuActiveTrail

Provides the default implementation of the active menu trail service.

Namespace

Code

protected function doGetActiveTrailIds($menu_name) {
    // Parent ids; used both as key and value to ensure uniqueness.
    // We always want all the top-level links with parent == ''.
    $active_trail = [
        '' => '',
    ];
    // If a link in the given menu indeed matches the route, then use it to
    // complete the active trail.
    if ($active_link = $this->getActiveLink($menu_name)) {
        if ($parents = $this->menuLinkManager
            ->getParentIds($active_link->getPluginId())) {
            $active_trail = $parents + $active_trail;
        }
    }
    return $active_trail;
}