<?php /** * @link http://www.yiiframework.com/ * @copyright Copyright (c) 2008 Yii Software LLC * @license http://www.yiiframework.com/license/ */ namespace yii\bootstrap; use yii\helpers\Html; /** * NavBar renders a navbar HTML component. * * Any content enclosed between the [[begin()]] and [[end()]] calls of NavBar * is treated as the content of the navbar. You may use widgets such as [[Nav]] * or [[\yii\widgets\Menu]] to build up such content. For example, * * ```php * use yii\bootstrap\NavBar; * use yii\widgets\Menu; * * NavBar::begin(['brandLabel' => 'NavBar Test']); * echo Nav::widget([ * 'items' => [ * ['label' => 'Home', 'url' => ['/site/index']], * ['label' => 'About', 'url' => ['/site/about']], * ], * ]); * NavBar::end(); * ``` * * @see http://twitter.github.io/bootstrap/components.html#navbar * @author Antonio Ramirez <amigo.cobos@gmail.com> * @since 2.0 */ class NavBar extends Widget { /** * @var string the text of the brand. Note that this is not HTML-encoded. * @see http://twitter.github.io/bootstrap/components.html#navbar */ public $brandLabel; /** * @param array|string $url the URL for the brand's hyperlink tag. This parameter will be processed by [[Html::url()]] * and will be used for the "href" attribute of the brand link. Defaults to site root. */ public $brandUrl = '/'; /** * @var array the HTML attributes of the brand link. */ public $brandOptions = []; /** * @var string text to show for screen readers for the button to toggle the navbar. */ public $screenReaderToggleText = 'Toggle navigation'; /** * @var bool whether the navbar content should be included in a `container` div which adds left and right padding. * Set this to false for a 100% width navbar. */ public $padded = true; /** * Initializes the widget. */ public function init() { parent::init(); $this->clientOptions = false; Html::addCssClass($this->options, 'navbar'); if ($this->options['class'] == 'navbar') { Html::addCssClass($this->options, 'navbar-default'); } Html::addCssClass($this->brandOptions, 'navbar-brand'); if (empty($this->options['role'])) { $this->options['role'] = 'navigation'; } echo Html::beginTag('nav', $this->options); if ($this->padded) { echo Html::beginTag('div', ['class' => 'container']); } echo Html::beginTag('div', ['class' => 'navbar-header']); echo $this->renderToggleButton(); if ($this->brandLabel !== null) { echo Html::a($this->brandLabel, $this->brandUrl, $this->brandOptions); } echo Html::endTag('div'); echo Html::beginTag('div', ['class' => "collapse navbar-collapse navbar-{$this->options['id']}-collapse"]); } /** * Renders the widget. */ public function run() { echo Html::endTag('div'); if ($this->padded) { echo Html::endTag('div'); } echo Html::endTag('nav'); BootstrapPluginAsset::register($this->getView()); } /** * Renders collapsible toggle button. * @return string the rendering toggle button. */ protected function renderToggleButton() { $bar = Html::tag('span', '', ['class' => 'icon-bar']); $screenReader = '<span class="sr-only">'.$this->screenReaderToggleText.'</span>'; return Html::button("{$screenReader}\n{$bar}\n{$bar}\n{$bar}", [ 'class' => 'navbar-toggle', 'data-toggle' => 'collapse', 'data-target' => ".navbar-{$this->options['id']}-collapse", ]); } }