1 /*

     2 YUI 3.10.3 (build 2fb5187)

     3 Copyright 2013 Yahoo! Inc. All rights reserved.

     4 Licensed under the BSD License.

     5 http://yuilibrary.com/license/

     6 */

     7 

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

     9 

    10 

    11     /**

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

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

    14     *

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

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

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

    18     * to enable gesture movement instead of mouse based movement.

    19     * @module dd

    20     * @submodule dd-gestures

    21     */

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

    23 

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

    25 

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

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

    28         this._dragThreshMet = false;

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

    30 

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

    32 

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

    34             minDistance: this.get('clickPixelThresh'),

    35             minTime: this.get('clickTimeThresh')

    36         });

    37 

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

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

    40 

    41     };

    42 

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

    44 

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

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

    47         _unprep.call(this);

    48         node.detachAll('gesturemoveend');

    49     };

    50 

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

    52         var DDM = Y.DD.DDM;

    53 

    54         this._createPG();

    55         this._active = true;

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

    57     };

    58 

    59 

    60 

    61 }, '3.10.3', {"requires": ["dd-drag", "event-synthetic", "event-gestures"]});