Grav\Plugin\AdminPlugin::onTwigSiteVariables PHP Метод

    public function onTwigSiteVariables()
    {
        $twig = $this->grav['twig'];
        $twig->twig_vars['location'] = $this->template;
        $twig->twig_vars['base_url_relative_frontend'] = $twig->twig_vars['base_url_relative'] ?: '/';
        $twig->twig_vars['admin_route'] = trim($this->admin_route, '/');
        $twig->twig_vars['base_url_relative'] = $twig->twig_vars['base_url_simple'] . '/' . $twig->twig_vars['admin_route'];
        $theme_url = '/' . ltrim($this->grav['locator']->findResource('plugin://admin/themes/' . $this->theme, false), '/');
        $twig->twig_vars['theme_url'] = $theme_url;
        $twig->twig_vars['base_url'] = $twig->twig_vars['base_url_relative'];
        $twig->twig_vars['base_path'] = GRAV_ROOT;
        $twig->twig_vars['admin'] = $this->admin;
        $twig->twig_vars['admin_version'] = $this->version;
        // Gather Plugin-hooked nav items
        $this->grav->fireEvent('onAdminMenu');
        switch ($this->template) {
            case 'dashboard':
                $twig->twig_vars['popularity'] = $this->popularity;
                // Gather Plugin-hooked dashboard items
                $this->grav->fireEvent('onAdminDashboard');
                break;
        }
    }