import React from 'react';
import { Modifier } from '@popperjs/core';
export declare const Placements: ["top", "left", "right", "bottom", "topLeft", "topRight", "bottomLeft", "bottomRight", "leftTop", "leftBottom", "rightTop", "rightBottom"];
export declare type PlacementType = typeof Placements[number];
export declare const Triggers: ["hover", "focus", "click", "contextMenu"];
export declare type TriggerType = typeof Triggers[number];
export declare type IReason = TriggerType | 'scroll' | 'clickOutside' | 'clickToClose' | 'parentHidden' | 'unknown' | 'selectPopperItem' | 'pressEnter' | 'escEnter' | 'delEnter' | 'otherEnter';
export declare type RenderFunction = () => React.ReactNode;
export declare type RenderType = RenderFunction | React.ReactNode | undefined;
export declare type RefType = React.RefObject<HTMLElement | Record<string, HTMLElement>>;
export declare type PopperProps = {
    gap?: number;
    arrow?: boolean;
    visible?: boolean;
    prefixCls?: string;
    arrowSize?: number;
    disabled?: boolean;
    arrowOffset?: number;
    scrollHidden?: boolean;
    mouseEnterDelay?: number;
    mouseLeaveDelay?: number;
    defaultVisible?: boolean;
    autoPlacement?: boolean;
    autoPlacementList?: PlacementType[];
    backgroundTransparent?: boolean;
    className?: string;
    style?: React.CSSProperties;
    popperClassName?: string;
    popperStyle?: React.CSSProperties;
    popperOuterClassName?: string;
    popperOuterStyle?: React.CSSProperties;
    placement?: PlacementType;
    tip?: RenderType;
    trigger?: TriggerType | Array<TriggerType>;
    strategy?: 'fixed' | 'absolute';
    clickToClose?: boolean;
    onTrigger?: (trigger: TriggerType) => void;
    onVisibleChange?: (visible: boolean, reason?: IReason, payload?: IPayload) => void;
    getTriggerElement?: (locatorNode: HTMLElement) => HTMLElement;
    getPopupContainer?: (locatorNode: HTMLElement) => HTMLElement;
    onTransitionEnd?: (e: React.TransitionEvent) => void;
    onAnimationEnd?: (e: React.AnimationEvent) => void;
    children?: RenderType;
    customerModifiers?: (modifiers: Partial<Modifier<any, any>>[]) => Partial<Modifier<any, any>>[];
};
export interface TriggerContextProps {
    registerSubPopup: (id: string, node: SubPopup) => void;
}
export declare const popperPlacementMap: {
    top: string;
    left: string;
    right: string;
    bottom: string;
    topLeft: string;
    topRight: string;
    bottomLeft: string;
    bottomRight: string;
    leftTop: string;
    leftBottom: string;
    rightTop: string;
    rightBottom: string;
};
/**
 * 兼容IE8及以上的closest替代方法
 * @param {element} element DOM元素
 * @param {selector} string 选择器字符串
 * @returns DOM元素
 */
export declare function closestPolyfill(element: any, selector: string): any;
export declare type SubPopup = {
    dom: HTMLElement | null;
    triggerOpen: (nextOpen: boolean, triggerType?: IReason, delay?: number, payload?: IPayload) => void;
    visible: boolean;
    subPopupRefs: React.MutableRefObject<Record<string, SubPopup>>;
};
export declare type IPayload = {
    popperDom?: HTMLElement | false;
    referenceDom?: HTMLElement | false;
    event?: MouseEvent;
    subPopupRefs?: SubPopup['subPopupRefs'];
};
export declare const Popper: React.ForwardRefExoticComponent<PopperProps & React.RefAttributes<SubPopup | null>>;
export default Popper;