/*

YUI 3.10.3 (build 2fb5187)

Copyright 2013 Yahoo! Inc. All rights reserved.

Licensed under the BSD License.

http://yuilibrary.com/license/

*/

YUI.add('dd-gestures', function (Y, NAME) {

    /**

    * This module is the conditional loaded `dd` module to support gesture events

    * in the event that `dd` is loaded onto a device that support touch based events.

    *

    * This module is loaded and over rides 2 key methods on `DD.Drag` and `DD.DDM` to

    * attach the gesture events. Overrides `DD.Drag._prep` and `DD.DDM._setupListeners`

    * methods as well as set's the property `DD.Drag.START_EVENT` to `gesturemovestart`

    * to enable gesture movement instead of mouse based movement.

    * @module dd

    * @submodule dd-gestures

    */

    Y.log('Drag gesture support loaded', 'info', 'drag-gestures');

    Y.DD.Drag.START_EVENT = 'gesturemovestart';

    Y.DD.Drag.prototype._prep = function() {

        Y.log('Using DD override prep to attach gesture events', 'info', 'drag-gestures');

        this._dragThreshMet = false;

        var node = this.get('node'), DDM = Y.DD.DDM;

        node.addClass(DDM.CSS_PREFIX + '-draggable');

        node.on(Y.DD.Drag.START_EVENT, Y.bind(this._handleMouseDownEvent, this), {

            minDistance: this.get('clickPixelThresh'),

            minTime: this.get('clickTimeThresh')

        });

        node.on('gesturemoveend', Y.bind(this._handleMouseUp, this), { standAlone: true });

        node.on('dragstart', Y.bind(this._fixDragStart, this));

    };

    var _unprep = Y.DD.Drag.prototype._unprep;

    Y.DD.Drag.prototype._unprep = function() {

        var node = this.get('node');

        _unprep.call(this);

        node.detachAll('gesturemoveend');

    };

    Y.DD.DDM._setupListeners = function() {

        var DDM = Y.DD.DDM;

        this._createPG();

        this._active = true;

        Y.one(Y.config.doc).on('gesturemove', Y.throttle(Y.bind(DDM._move, DDM), DDM.get('throttleTime')), { standAlone: true });

    };

}, '3.10.3', {"requires": ["dd-drag", "event-synthetic", "event-gestures"]});