declare namespace Ext {
    export namespace view {
        export interface DragZoneConfig {
            animRepair?: boolean;
            containerScroll?: object | boolean;
            ddGroup?: string;
            dropAllowed?: string;
            dropNotAllowed?: string;
            repairHighlightColor?: string;
            scrollEl?: string | Ext.dom.Element;
        }

        export class DragZone extends Ext.dd.DragZone  {
            public isPreventDrag(e?: Ext.event.Event, record?: Ext.data.Model, item?: HTMLElement, index?: number): void;
        }
    }
}