import React from "react";
interface IPopupHostProps {
    anchor: React.RefObject<HTMLElement | null>;
    /** If the popup height is less than this value, the top of the popup will be moved up so that the height is at least this value. */
    jumpThreshold?: number;
    /** Called when the close animation completes. */
    onClose?: () => void;
    children: React.ReactElement;
}
/**
 * A component that displays a popup over an anchor element.
 * The popup is dismissed when clicking outside of it, or pressing the Escape key.
 *
 * This component is a low level component that should be used by other re-usable components, not directly in views.
 */
export default class PopupHost extends React.Component<IPopupHostProps> {
    constructor(props: IPopupHostProps);
    private isVisible;
    private popupRef;
    private hideTimer;
    render(): false | React.JSX.Element;
    componentDidUpdate(): void;
    componentWillUnmount(): void;
    /** Shows, and positions the popup. */
    show(): void;
    /**
     * Recalculates the position of the popup relative to the anchor.
     * Call this if the height of the child popup may have changed.
     */
    performLayout(): void;
    private onKeyDown;
    private documentClick;
    /**
     * Starts the animation to hide the popup.
     * The onClose callback will be called once the animation completes.
     */
    beginHide(): void;
    private hide;
    private removeDocumentClickListener;
}
export {};