/**
 * Component pop-up window (Popover)
 *
 * Implemented on the basis of the library Popper.js (см: https://popper.js.org/)
 * and react-wrappers above it - react-popper (см: https://github.com/FezVrasta/react-popper)
 *
 */
import { Modifier } from '@popperjs/core';
import * as React from 'react';
import { PopperChildrenProps, ReferenceChildrenProps } from 'react-popper';
import { IProps as OverlayProps } from '../modal/core/overlay/Overlay.types';
import { DefaultProps, GetDerivedStateFromProps, IProps, IState } from './Popover.types';
export declare class Popover extends React.PureComponent<IProps, IState> {
    static defaultProps: DefaultProps;
    static excludingProps: Array<keyof IProps>;
    static getDerivedStateFromProps: GetDerivedStateFromProps;
    state: IState;
    targetElement: HTMLElement | null;
    innerRefs: {
        target: (node: HTMLElement | null) => void;
    };
    scheduleUpdate: (() => void) | null;
    /**
     * The cursor is on the popup window?
     */
    isMouseOnPopper: boolean;
    /**
     * Is the cursor on the target?
     */
    isMouseOnTarget: boolean;
    timer: number;
    get isAnyHoverInteraction(): boolean;
    get isAnyClickInteraction(): boolean;
    handleTargetClick: React.MouseEventHandler<Element>;
    handleTargetMouseEnter: React.MouseEventHandler<Element>;
    handleTargetMouseLeave: React.MouseEventHandler<Element>;
    handlePopperMouseEnter: React.MouseEventHandler<Element>;
    handlePopperMouseLeave: React.MouseEventHandler<Element>;
    handleClose: OverlayProps['onClose'];
    composeClickHandlers: import("../../utils/composeEventHandlers").ComposeEventHandlers;
    composeMouseEnterHandlers: import("../../utils/composeEventHandlers").ComposeEventHandlers;
    composeMouseLeaveHandlers: import("../../utils/composeEventHandlers").ComposeEventHandlers;
    componentDidUpdate(prevProps: IProps, prevState: IState): void;
    componentWillUnmount(): void;
    hide: () => void;
    render(): JSX.Element;
    renderTarget: (referenceProps: ReferenceChildrenProps) => React.ReactNode;
    renderPopper: (popperProps: PopperChildrenProps) => JSX.Element;
    renderBlock(): JSX.Element;
    renderArrow(popperProps: PopperChildrenProps): JSX.Element | null;
    /**
     * Get modifiers
     *
     * Merge the default modifiers the modifiers of the properties.
     */
    getModifiers(): Array<Partial<Modifier<any, any>>>;
}