The source code

    /**
     * @ignore
     * container can delegate event for its children
     * @author yiminghe@gmail.com
     */
    KISSY.add("component/base/container", function (S, Controller, DelegateChildren, DecorateChildren) {
        /**
         * @extends KISSY.Component.Controller
         * @class KISSY.Component.Container
         * Container class. Extend it to acquire the abilities of
         * delegating events and decorate from pre-rendered dom
         * for child components.
         */
        return Controller.extend([DelegateChildren, DecorateChildren]);

    }, {
        requires: ['./controller', './delegate-children', './decorate-children']
    });

    /**
     * @ignore
     * TODO
     *  - handleMouseEvents false for container ?
     */