skeeks\cms\components\CmsToolbar::bootstrap PHP Method

    public function bootstrap($app)
    {
        // delay attaching event handler to the view component after it is fully configured
        $app->on(Application::EVENT_BEFORE_REQUEST, function () use($app) {
            $app->getView()->on(View::EVENT_END_BODY, [$this, 'renderToolbar']);
        });
    }