Pagekit\Finder\Controller\FinderController::getMode PHP Method

    protected function getMode($path)
    {
        $mode = App::trigger(new FileAccessEvent('system.finder'))->mode($path);
        if ('w' == $mode && !is_writable($path)) {
            $mode = 'r';
        }
        if ('r' == $mode && !is_readable($path)) {
            $mode = '-';
        }
        return $mode;
    }