import React from 'react';
import { PopperProps } from '../_utils/usePopper';
export interface CascaderOptionType {
    value?: string;
    label?: React.ReactNode;
    disabled?: boolean;
    isLeaf?: boolean;
    loading?: boolean;
    children?: Array<CascaderOptionType>;
    [key: string]: any;
}
declare type FieldNames = {
    label: string;
    value: string;
    children: string;
};
export declare type KeysDataType = {
    [key: string]: CascaderOptionType;
};
export declare const CascaderPlacement: ["topLeft", "topRight", "bottomLeft", "bottomRight"];
export declare type CascaderPlacementType = typeof CascaderPlacement[number];
export declare type CascaderValueType = (string | string[])[];
export declare type CascaderExpandTrigger = 'click' | 'hover';
export interface CascaderProps extends PopperProps {
    id?: string;
    name?: string;
    className?: string;
    prefixCls?: string;
    bordered?: boolean;
    disabled?: boolean;
    autoFocus?: boolean;
    allowClear?: boolean;
    placeholder?: string;
    popupVisible?: boolean;
    popperVisible?: boolean;
    fieldNames?: FieldNames;
    popupClassName?: string;
    popperClassName?: string;
    changeOnSelect?: boolean;
    notFoundContent?: string;
    value?: CascaderValueType;
    maxTagCount?: number;
    maxTagPlaceholder?: React.ReactNode | ((omittedValues: number) => string);
    children?: React.ReactNode;
    mode?: 'single' | 'multiple';
    style?: React.CSSProperties;
    suffixIcon?: React.ReactNode;
    expandIcon?: React.ReactNode;
    defaultPopupVisible?: boolean;
    defaultValue?: CascaderValueType;
    popupPlacement?: CascaderPlacementType;
    popperPlacement?: CascaderPlacementType;
    options?: Array<CascaderOptionType>;
    expandTrigger?: CascaderExpandTrigger;
    onPopupVisibleChange?: (visible: boolean) => void;
    onPopperVisibleChange?: (visible: boolean) => void;
    loadData?: (selectedOptions: CascaderOptionType[]) => void;
    dropdownRender?: (menus: React.ReactNode) => React.ReactNode;
    getPopupContainer?: (triggerNode: HTMLElement) => HTMLElement;
    onChange?: (value: CascaderValueType, currentOptions?: CascaderOptionType[]) => void;
    displayRender?: (label: string[], currentOptions?: CascaderOptionType[]) => React.ReactNode;
}
declare const Cascader: React.ForwardRefExoticComponent<CascaderProps & React.RefAttributes<unknown>>;
export default Cascader;