import React, { MouseEvent as ReactMouseEvent, CSSProperties } from 'react';
import { HandleType, ElementId, Position, XYPosition, OnConnectFunc, OnConnectStartFunc, OnConnectStopFunc, OnConnectEndFunc, Connection, SetConnectionId } from '../../types';
declare type ValidConnectionFunc = (connection: Connection) => boolean;
export declare type SetSourceIdFunc = (params: SetConnectionId) => void;
interface BaseHandleProps {
    type: HandleType;
    nodeId: ElementId;
    onConnect: OnConnectFunc;
    onConnectStart?: OnConnectStartFunc;
    onConnectStop?: OnConnectStopFunc;
    onConnectEnd?: OnConnectEndFunc;
    position: Position;
    setConnectionNodeId: SetSourceIdFunc;
    setPosition: (pos: XYPosition) => void;
    isValidConnection: ValidConnectionFunc;
    id?: ElementId | null;
    className?: string;
    style?: CSSProperties;
}
export declare function onMouseDown(event: ReactMouseEvent, handleId: ElementId | null, nodeId: ElementId, setConnectionNodeId: SetSourceIdFunc, setPosition: (pos: XYPosition) => void, onConnect: OnConnectFunc, isTarget: boolean, isValidConnection: ValidConnectionFunc, onConnectStart?: OnConnectStartFunc, onConnectStop?: OnConnectStopFunc, onConnectEnd?: OnConnectEndFunc): void;
declare const _default: React.MemoExoticComponent<{
    ({ type, nodeId, onConnect, onConnectStart, onConnectStop, onConnectEnd, position, setConnectionNodeId, setPosition, className, id, isValidConnection, ...rest }: BaseHandleProps): JSX.Element;
    displayName: string;
}>;
export default _default;