lib/Ext/util/Draggable.js
function(config) {
        var element;

        this.extraConstraint = {};

        this.initialConfig = config;

        this.offset = {
            x: 0,
            y: 0
        };

        this.listeners = {
            dragstart: 'onDragStart',
            drag     : 'onDrag',
            dragend  : 'onDragEnd',
            resize   : 'onElementResize',
            touchstart : 'onPress',
            touchend   : 'onRelease',
            scope: this
        };

        if (config && config.element) {
            element = config.element;
            delete config.element;

            this.setElement(element);
        }

        return this;
    }
function(config) {
        var element;

        this.extraConstraint = {};

        this.initialConfig = config;

        this.offset = {
            x: 0,
            y: 0
        };

        this.listeners = {
            dragstart: 'onDragStart',
            drag     : 'onDrag',
            dragend  : 'onDragEnd',
            resize   : 'onElementResize',
            touchstart : 'onPress',
            touchend   : 'onRelease',
            scope: this
        };

        if (config && config.element) {
            element = config.element;
            delete config.element;

            this.setElement(element);
        }

        return this;
    }
Creates new Draggable.
@param {Object} config The configuration object for this Draggable.