/// <reference types="react" />
import React from 'react';
type ReactProps = Object;
type Offset = { x: number, y: number };

type DragLayerMonitor = {
    isDragging: () => boolean;
    getItemType: () => null | DragLayerType;
    getItem: () => null | Object;
    getDropResult: () => null | Object;
    didDrop: () => boolean;
    getInitialClientOffset: () => null | Offset;
    getInitialSourceClientOffset: () => null | Offset;
    getClientOffset: () => null | Offset;
    getDifferenceFromInitialOffset: () => null | Offset;
    getSourceClientOffset: () => null | Offset;
}

export interface DragLayerProps {
    collect?: (monitor: DragLayerMonitor) => Object;
    options?: DragLayerOptions;
    display?: (item: Object) => boolean;
    hook?: ({ isDragging: boolean, item: Object, offset: Offset, initOffset: Offset, style: Object, otherDragProps }) => void;
    render?: ({ item: Object, offset: Offset, initOffset: Offset, style: Object, otherDragProps }) => React.ReactNode;
}

export default class DragLayer extends React.Component<DragLayerProps, any>{
    render(): JSX.Element;
}