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112 lines
3.0 KiB
112 lines
3.0 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\bootstrap; |
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use yii\base\InvalidConfigException; |
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use yii\helpers\base\ArrayHelper; |
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use yii\helpers\Html; |
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/** |
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* Dropdown renders a Tab bootstrap javascript component. |
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* |
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* @see http://twitter.github.io/bootstrap/javascript.html#dropdowns |
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* @author Antonio Ramirez <amigo.cobos@gmail.com> |
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* @since 2.0 |
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*/ |
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class Dropdown extends Widget |
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{ |
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/** |
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* @var array list of menu items in the dropdown. Each array element represents a single |
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* menu with the following structure: |
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* |
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* ```php |
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* array( |
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* // required, the label of the item link |
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* 'label' => 'Menu label', |
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* // optional, url of the item link |
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* 'url' => '', |
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* // optional the HTML attributes of the item link |
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* 'urlOptions'=> array(...), |
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* // optional the HTML attributes of the item |
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* 'options'=> array(...), |
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* // optional, an array of items that configure a sub menu of the item |
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* // note: if `items` is set, then `url` of the parent item will be ignored and automatically set to "#" |
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* 'items'=> array(...) |
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* ) |
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* ``` |
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* Additionally, you can also configure a dropdown item as string. |
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*/ |
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public $items = array(); |
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/** |
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* Initializes the widget. |
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* If you override this method, make sure you call the parent implementation first. |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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$this->addCssClass($this->options, 'dropdown-menu'); |
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} |
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/** |
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* Renders the widget. |
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*/ |
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public function run() |
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{ |
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echo Html::beginTag('ul', $this->options) . "\n"; |
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echo $this->renderContents() . "\n"; |
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echo Html::endTag('ul') . "\n"; |
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$this->registerPlugin('dropdown'); |
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} |
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/** |
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* Renders dropdown contents as specified on [[items]]. |
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* @return string the rendering result. |
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* @throws InvalidConfigException |
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*/ |
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protected function renderContents() |
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{ |
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$contents = array(); |
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foreach ($this->items as $item) { |
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if (is_string($item)) { |
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$contents[] = $item; |
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continue; |
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} |
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if (!isset($item['label'])) { |
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throw new InvalidConfigException("The 'label' option is required."); |
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} |
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$options = ArrayHelper::getValue($item, 'options', array()); |
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$urlOptions = ArrayHelper::getValue($item, 'urlOptions', array()); |
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$urlOptions['tabindex'] = '-1'; |
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if (isset($item['items'])) { |
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$this->addCssClass($options, 'dropdown-submenu'); |
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$content = Html::a($item['label'], '#', $urlOptions) . $this->dropdown($item['items']); |
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} else { |
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$content = Html::a($item['label'], ArrayHelper::getValue($item, 'url', '#'), $urlOptions); |
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} |
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$contents[] = Html::tag('li', $content , $options); |
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} |
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return implode("\n", $contents); |
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} |
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/** |
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* Generates a dropdown menu. |
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* @param array $items the configuration of the dropdown items. See [[items]]. |
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* @return string the generated dropdown menu |
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* @see items |
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*/ |
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protected function dropdown($items) |
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{ |
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return Dropdown::widget(array('items' => $items, 'clientOptions' => false)); |
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} |
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} |