navbar
Github

    public function navbar()
    {
        return _class('html')->navbar([
            'brand' => [
                'link' => url('/'),
                'name' => 'Title',
            ],
            [
                'link' => url('/home'),
                'name' => 'Home',
            ],
            [
                'link' => url('/link1'),
                'name' => 'Link1',
            ],
            [
                'link' => url('/link2'),
                'name' => 'Link2',
            ],
        ]);
    }
    public function navbar($data = [], $extra = [])
    {
        $extra['id'] = $extra['id'] ?: __FUNCTION__ . '_' . ++$this->_ids[__FUNCTION__];
        $items = [];
        $brand = '';
        if (isset($data['brand'])) {
            $b = $data['brand'];
            unset($data['brand']);
            $brand = '<a class="brand navbar-brand' . ($b['class'] ? ' ' . $b['class'] : '') . '" href="' . $b['link'] . '" title="' . $b['name'] . '">' . $b['name'] . '</a>';
        }
        $data = _prepare_html($data);
        foreach ((array) $data as $k => $v) {
            if (isset($extra['selected'])) {
                $is_selected = ($extra['selected'] == $k);
            } else {
                $is_selected = (++$i == 1);
            }
            $class_item = $v['class_item'] ?: $extra['class_item'];
            $badge = $v['badge'] ? ' <sup class="badge badge-' . ($v['class_badge'] ?: 'info') . '">' . $v['badge'] . '</sup>' : '';
            $items[] = '<li class="' . ($is_selected ? ' active' : '') . ($class_item ? ' ' . $class_item : '') . '"><a href="' . $v['link'] . '" title="' . $v['name'] . '">' . $v['name'] . $badge . '</a></li>';
        }
        return
            '<div class="navbar navbar-default' . ($extra['class'] ? ' ' . $extra['class'] : '') . '" id="' . $extra['id'] . '">
				<div class="navbar-inner navbar-header">'
                    . $brand
                    . '<ul class="nav navbar-nav">' . implode(PHP_EOL, (array) $items) . '</a>
				</div>
			</div>';
    }
Navbar widget based on bootstrap navbar markup.

http://getbootstrap.com/components/#navbar