<?php
/**
 * TbCollapse class file.
 * @author Christoffer Niska <ChristofferNiska@gmail.com>
 * @copyright Copyright &copy; Christoffer Niska 2012-
 * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
 * @package bootstrap.widgets
 * @since 1.0.0
 */

/**
 * Bootstrap collapse widget.
 * @see http://twitter.github.com/bootstrap/javascript.html#collapse
 */
class TbCollapse extends CWidget
{
    /**
     * @var string the name of the collapse element. Defaults to 'a'.
     */
    public $tagName = 'div';
    /**
     * @var boolean the CSS selector for element to collapse. Default to 'false'.
     */
    public $parent = false;
    /**
     * @var boolean indicates whether to toggle the collapsible element on invocation.
     */
    public $toggle = true;
    /**
     * @var array the options for the Bootstrap Javascript plugin.
     */
    public $options = array();
    /**
     * @var string[] the Javascript event handlers.
     */
    public $events = array();
    /**
    * @var array the HTML attributes for the widget container.
    */
    public $htmlOptions = array();

    /**
     * Initializes the widget.
     */
    public function init()
    {
        if (!isset($this->htmlOptions['id']))
            $this->htmlOptions['id'] = $this->getId();

        if (isset($this->parent) && !isset($this->options['parent']))
            $this->options['parent'] = $this->parent;

        if (isset($this->toggle) && !isset($this->options['toggle']))
            $this->options['toggle'] = $this->toggle;

        echo CHtml::tag($this->tagName, $this->htmlOptions);
    }

    /**
     * Runs the widget.
     */
    public function run()
    {
        $id = $this->htmlOptions['id'];

        echo CHtml::closeTag($this->tagName);

        /** @var CClientScript $cs */
        $cs = Yii::app()->getClientScript();
        $options = !empty($this->options) ? CJavaScript::encode($this->options) : '';
        $cs->registerScript(__CLASS__.'#'.$id, "jQuery('#{$id}').collapse({$options});");

        foreach ($this->events as $name => $handler)
        {
            $handler = CJavaScript::encode($handler);
            $cs->registerScript(__CLASS__.'#'.$id.'_'.$name, "jQuery('#{$id}').on('{$name}', {$handler});");
        }
    }
}

