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

     2 

     3 

     4     /**

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

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

     7     *

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

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

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

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

    12     * @module dd

    13     * @submodule dd-gestures

    14     */

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

    16 

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

    18 

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

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

    21         this._dragThreshMet = false;

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

    23 

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

    25 

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

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

    28             minTime: this.get('clickTimeThresh')

    29         });

    30 

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

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

    33 

    34     };

    35 

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

    37 

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

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

    40         _unprep.call(this);

    41         node.detachAll('gesturemoveend');

    42     };

    43 

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

    45         var DDM = Y.DD.DDM;

    46 

    47         this._createPG();

    48         this._active = true;

    49         Y.one(Y.config.doc).on('gesturemove', Y.throttle(Y.bind(DDM._move, DDM), DDM.get('throttleTime')), {

    50             standAlone: true,

    51             preventDefault: true

    52         });

    53     };

    54 

    55 

    56 

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