import { TriggerProps } from 'rc-trigger';
import React from 'react';
import { DropDownProps, DropDownState } from './iDropdown';
export declare const DropdownDefaultProps: DropDownProps;
interface TriggerRef extends React.Component<TriggerProps, any> {
    getPopupDomNode: () => React.ReactNode & HTMLElement;
}
declare class Dropdown extends React.Component<DropDownProps, DropDownState> {
    static defaultProps: DropDownProps;
    triggerRef: TriggerRef | null;
    constructor(props: DropDownProps);
    static getDerivedStateFromProps(props: DropDownProps, state: DropDownState): {
        visible: boolean;
        popupAlign: import("./iDropdown").Align | null;
    } | null;
    onClick: (e: React.MouseEvent<HTMLUListElement>) => void;
    onVisibleChange: (visible: boolean) => void;
    getMenuElement: () => React.ReactElement<any, string | React.JSXElementConstructor<any>>;
    getPopupDomNode: () => (React.ReactNode & HTMLElement) | null;
    getpopupAlign: () => {
        points: [string, string];
        offset?: [number, number] | undefined;
        targetOffset?: [number, number] | undefined;
        overflow?: {
            adjustX?: number | undefined;
            adjustY?: number | undefined;
        } | undefined;
    };
    afterVisibleChange: (visible: boolean) => void;
    getPopupContainerDom: (dom: HTMLElement) => HTMLElement;
    render(): JSX.Element;
}
export default Dropdown;