# Yahoo! UI Library

### dd 3.3.0

Yahoo! UI Library > dd > drag-gestures.js (source view)
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        /**
        * This module is the conditional loaded DD file 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.
        */
        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: 0,
                minTime: 0
            });

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

        };

        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 });
        };

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