static/ext/src/ux/DataView/DragSelector.js
function(dataview) {
        /**
         * @property dataview
         * @type Ext.view.View
         * The DataView bound to this instance
         */
        this.dataview = dataview;
        dataview.mon(dataview, {
            beforecontainerclick: this.cancelClick,
            scope: this,
            render: {
                fn: this.onRender,
                scope: this,
                single: true
            }
        });
    }
function(dataview) {
        /**
         * @property dataview
         * @type Ext.view.View
         * The DataView bound to this instance
         */
        this.dataview = dataview;
        dataview.mon(dataview, {
            beforecontainerclick: this.cancelClick,
            scope: this,
            render: {
                fn: this.onRender,
                scope: this,
                single: true
            }
        });
    }
Initializes the plugin by setting up the drag tracker