TbCollapse.php

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<?php
class TbCollapse extends CWidget {
        
        const CONTAINER_PREFIX = 'yii_bootstrap_collapse_';

        public $tagName = 'div';

        public $parent = false;

        public $toggle = true;

        public $options = array();

        public $events = array();

        public $htmlOptions = array();

        private static $_containerId = 0;

        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;
                }

                // NOTE: we depend on the htmlOptions being initialized to empty array already.
                if (empty($this->htmlOptions['class'])) {
                        $this->htmlOptions['class'] = 'collapse';
                } else {
                        $this->htmlOptions['class'] .= ' collapse';
                }
                echo CHtml::openTag($this->tagName, $this->htmlOptions);
        }

        public function run() {
                
                $id = $this->htmlOptions['id'];

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

                $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});");
                }
        }

        public static function getNextContainerId() {
                
                return self::CONTAINER_PREFIX . self::$_containerId++;
        }
}