YUI.add('widget-autohide', function (Y, NAME) {

/**

 * A widget-level extension that provides ability to hide widget when

 * certain events occur.

 *

 * @module widget-autohide

 * @author eferraiuolo, tilomitra

 * @since 3.4.0

 */

var WIDGET_AUTOHIDE    = 'widgetAutohide',

    AUTOHIDE            = 'autohide',

    CLICK_OUTSIDE     = 'clickoutside',

    FOCUS_OUTSIDE     = 'focusoutside',

    DOCUMENT            = 'document',

    KEY                 = 'key',

    PRESS_ESCAPE         = 'esc',

    BIND_UI             = 'bindUI',

    SYNC_UI             = "syncUI",

    RENDERED            = "rendered",

    BOUNDING_BOX        = "boundingBox",

    VISIBLE             = "visible",

    CHANGE              = 'Change',

    getCN               = Y.ClassNameManager.getClassName;

/**

 * The WidgetAutohide class provides the hideOn attribute which can

 * be used to hide the widget when certain events occur.

 *

 * @class WidgetAutohide

 * @param {Object} config User configuration object

 */

function WidgetAutohide(config) {

    Y.after(this._bindUIAutohide, this, BIND_UI);

    Y.after(this._syncUIAutohide, this, SYNC_UI);

    if (this.get(RENDERED)) {

        this._bindUIAutohide();

        this._syncUIAutohide();

    }

}

/**

* Static property used to define the default attribute

* configuration introduced by WidgetAutohide.

*

* @property ATTRS

* @static

* @type Object

*/

WidgetAutohide.ATTRS = {

    /**

     * @attribute hideOn

     * @type array

     *

     * @description An array of objects corresponding to the nodes, events, and keycodes to hide the widget on.

     * The implementer can supply an array of objects, with each object having the following properties:

     * <p>eventName: (string, required): The eventName to listen to.</p>

     * <p>node: (Y.Node, optional): The Y.Node that will fire the event (defaults to the boundingBox of the widget)</p>

     * <p>keyCode: (string, optional): If listening for key events, specify the keyCode</p>

     * <p>By default, this attribute consists of one object which will cause the widget to hide if the

     * escape key is pressed.</p>

     */

    hideOn: {

        validator: Y.Lang.isArray,

        valueFn  : function() {

            return [

                {

                    node: Y.one(DOCUMENT),

                    eventName: KEY,

                    keyCode: PRESS_ESCAPE

                }

            ];

        }

    }

};

WidgetAutohide.prototype = {

    // *** Instance Members *** //

        _uiHandlesAutohide : null,

        // *** Lifecycle Methods *** //

        destructor : function () {

            this._detachUIHandlesAutohide();

        },

        /**

         * Binds event listeners to the widget.

         * <p>

         * This method in invoked after bindUI is invoked for the Widget class

         * using YUI's aop infrastructure.

         * </p>

         * @method _bindUIAutohide

         * @protected

         */

        _bindUIAutohide : function () {

            this.after(VISIBLE+CHANGE, this._afterHostVisibleChangeAutohide);

            this.after("hideOnChange", this._afterHideOnChange);

        },

        /**

         * Syncs up the widget based on its current state. In particular, removes event listeners if

         * widget is not visible, and attaches them otherwise.

         * <p>

         * This method in invoked after syncUI is invoked for the Widget class

         * using YUI's aop infrastructure.

         * </p>

         * @method _syncUIAutohide

         * @protected

         */

        _syncUIAutohide : function () {

            this._uiSetHostVisibleAutohide(this.get(VISIBLE));

        },

        // *** Private Methods *** //

        /**

         * Removes event listeners if widget is not visible, and attaches them otherwise.

         *

         * @method _uiSetHostVisibleAutohide

         * @protected

         */

        _uiSetHostVisibleAutohide : function (visible) {

            if (visible) {

                //this._attachUIHandlesAutohide();

                Y.later(1, this, '_attachUIHandlesAutohide');

            } else {

                this._detachUIHandlesAutohide();

            }

        },

        /**

         * Iterates through all objects in the hideOn attribute and creates event listeners.

         *

         * @method _attachUIHandlesAutohide

         * @protected

         */

        _attachUIHandlesAutohide : function () {

            if (this._uiHandlesAutohide) { return; }

            var bb = this.get(BOUNDING_BOX),

                hide = Y.bind(this.hide,this),

                uiHandles = [],

                self = this,

                hideOn = this.get('hideOn'),

                i = 0,

                o = {node: undefined, ev: undefined, keyCode: undefined};

                //push all events on which the widget should be hidden

                for (; i < hideOn.length; i++) {

                    o.node = hideOn[i].node;

                    o.ev = hideOn[i].eventName;

                    o.keyCode = hideOn[i].keyCode;

                    //no keycode or node defined

                    if (!o.node && !o.keyCode && o.ev) {

                        uiHandles.push(bb.on(o.ev, hide));

                    }

                    //node defined, no keycode (not a keypress)

                    else if (o.node && !o.keyCode && o.ev) {

                        uiHandles.push(o.node.on(o.ev, hide));

                    }

                    //node defined, keycode defined, event defined (its a key press)

                    else if (o.node && o.keyCode && o.ev) {

                        uiHandles.push(o.node.on(o.ev, hide, o.keyCode));

                    }

                    else {

                        Y.log('The event with name "'+o.ev+'" could not be attached.');

                    }

                }

            this._uiHandlesAutohide = uiHandles;

        },

        /**

         * Detaches all event listeners created by this extension

         *

         * @method _detachUIHandlesAutohide

         * @protected

         */

        _detachUIHandlesAutohide : function () {

            Y.each(this._uiHandlesAutohide, function(h){

                h.detach();

            });

            this._uiHandlesAutohide = null;

        },

        /**

         * Default function called when the visibility of the widget changes. Determines

         * whether to attach or detach event listeners based on the visibility of the widget.

         *

         * @method _afterHostVisibleChangeAutohide

         * @protected

         */

        _afterHostVisibleChangeAutohide : function (e) {

            this._uiSetHostVisibleAutohide(e.newVal);

        },

        /**

         * Default function called when hideOn Attribute is changed. Remove existing listeners and create new listeners.

         *

         * @method _afterHideOnChange

         * @protected

         */

        _afterHideOnChange : function(e) {

            this._detachUIHandlesAutohide();

            if (this.get(VISIBLE)) {

                this._attachUIHandlesAutohide();

            }

        }

};

Y.WidgetAutohide = WidgetAutohide;

}, '@VERSION@', {"requires": ["base-build", "event-key", "event-outside", "widget"]});