1: <?php
 2: /**
 3:  * TbAffix class file.
 4:  * @author Christoffer Niska <christoffer.niska@gmail.com>
 5:  * @copyright Copyright &copy; Christoffer Niska 2013-
 6:  * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
 7:  * @package bootstrap.widgets
 8:  */
 9: 
10: Yii::import('bootstrap.behaviors.TbWidget');
11: 
12: /**
13:  * Bootstrap affix widget.
14:  * @see http://twitter.github.com/bootstrap/javascript.html#affix
15:  */
16: class TbAffix extends CWidget
17: {
18:     /**
19:      * @var string the HTML tag for the container.
20:      */
21:     public $tagName = 'div';
22:     /**
23:      * @var mixed pixels to offset from screen when calculating position of scroll.
24:      */
25:     public $offset;
26:     /**
27:      * @var array the HTML attributes for the container.
28:      */
29:     public $htmlOptions = array();
30: 
31:     /**
32:      * Initializes the widget.
33:      */
34:     public function init()
35:     {
36:         $this->attachBehavior('TbWidget', new TbWidget);
37:         $this->copyId();
38:         $this->htmlOptions['data-spy'] = 'affix';
39:         if (isset($this->offset)) {
40:             if (is_string($this->offset)) {
41:                 $this->offset = array('top', $this->offset);
42:             }
43: 
44:             if (is_array($this->offset) && count($this->offset) === 2) {
45:                 list($position, $offset) = $this->offset;
46:                 $this->htmlOptions['data-offset-' . $position] = $offset;
47:             }
48:         }
49:         echo TbHtml::openTag($this->tagName, $this->htmlOptions);
50:     }
51: 
52:     /**
53:      * Runs the widget.
54:      */
55:     public function run()
56:     {
57:         echo CHtml::closeTag($this->tagName);
58:     }
59: }