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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\jui;
use yii\base\InvalidConfigException;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
/**
* Selectable renders a selectable jQuery UI widget.
*
* For example:
*
* ```php
* echo Selectable::widget([
* 'items' => [
* 'Item 1',
* [
* 'content' => 'Item2',
* ],
* [
* 'content' => 'Item3',
* 'options' => [
* 'tag' => 'li',
* ],
* ],
* ),
* 'options' => [
* 'tag' => 'ul',
* ],
* 'itemOptions' => [
* 'tag' => 'li',
* ],
* 'clientOptions' => [
* 'tolerance' => 'fit',
* ],
* ]);
* ```
*
* @see http://api.jqueryui.com/selectable/
* @author Alexander Kochetov <creocoder@gmail.com>
* @since 2.0
*/
class Selectable extends Widget
{
/**
* @var array the HTML attributes for the widget container tag. The following special options are recognized:
*
* - tag: string, defaults to "ul", the tag name of the container tag of this widget
*/
public $options = [];
/**
* @var array list of selectable items. Each item can be a string representing the item content
* or an array of the following structure:
*
* ~~~
* [
* 'content' => 'item content',
* // the HTML attributes of the item container tag. This will overwrite "itemOptions".
* 'options' => [],
* ]
* ~~~
*/
public $items = [];
/**
* @var array list of HTML attributes for the item container tags. This will be overwritten
* by the "options" set in individual [[items]]. The following special options are recognized:
*
* - tag: string, defaults to "li", the tag name of the item container tags.
*/
public $itemOptions = [];
/**
* Renders the widget.
*/
public function run()
{
$options = $this->options;
$tag = ArrayHelper::remove($options, 'tag', 'ul');
echo Html::beginTag($tag, $options) . "\n";
echo $this->renderItems() . "\n";
echo Html::endTag($tag) . "\n";
$this->registerWidget('selectable', SelectableAsset::className());
}
/**
* Renders selectable items as specified on [[items]].
* @return string the rendering result.
* @throws InvalidConfigException.
*/
public function renderItems()
{
$items = [];
foreach ($this->items as $item) {
$options = $this->itemOptions;
$tag = ArrayHelper::remove($options, 'tag', 'li');
if (is_array($item)) {
if (!isset($item['content'])) {
throw new InvalidConfigException("The 'content' option is required.");
}
$options = array_merge($options, ArrayHelper::getValue($item, 'options', []));
$tag = ArrayHelper::remove($options, 'tag', $tag);
$items[] = Html::tag($tag, $item['content'], $options);
} else {
$items[] = Html::tag($tag, $item, $options);
}
}
return implode("\n", $items);
}
}