import type React from 'react';
import EventEmitter from 'eventemitter3';
import type { Nullable } from '../../typings/utility-types';
export type TGetRootNode = () => Nullable<Element>;
export type TSetRootNode = (e: Nullable<React.ReactInstance>) => void;
export interface TRootNodeSubscription {
    remove: () => void;
}
export interface InstanceWithRootNode {
    getRootNode: TGetRootNode;
    addRootNodeChangeListener?: (callback: (node: Nullable<Element>) => void) => TRootNodeSubscription;
}
interface ComponentWithDefaultRootNode {
    defaultRootNode?: Element | null;
}
interface ComponentWithKonturReactUI {
    __KONTUR_REACT_UI__?: string;
    displayName?: string;
}
interface DecoratableClassComponent extends ComponentWithDefaultRootNode, ComponentWithKonturReactUI {
    new (...args: any[]): React.Component;
}
export declare function rootNode<T extends DecoratableClassComponent>(Component: T): {
    new (...args: any[]): {
        rootNode: Nullable<Element>;
        rootNodeEmitter: EventEmitter<string | symbol, any>;
        setRootNode: (instance: Nullable<React.ReactInstance>) => void;
        getRootNode: () => Nullable<Element>;
        addRootNodeChangeListener: (callback: (node: Nullable<Element>) => void) => TRootNodeSubscription;
        context: unknown;
        setState<K extends never>(state: {} | ((prevState: Readonly<{}>, props: Readonly<{}>) => {} | Pick<{}, K> | null) | Pick<{}, K> | null, callback?: (() => void) | undefined): void;
        forceUpdate(callback?: (() => void) | undefined): void;
        render(): React.ReactNode;
        readonly props: Readonly<{}>;
        state: Readonly<{}>;
        refs: {
            [key: string]: React.ReactInstance;
        };
        componentDidMount?(): void;
        shouldComponentUpdate?(nextProps: Readonly<{}>, nextState: Readonly<{}>, nextContext: any): boolean;
        componentWillUnmount?(): void;
        componentDidCatch?(error: Error, errorInfo: React.ErrorInfo): void;
        getSnapshotBeforeUpdate?(prevProps: Readonly<{}>, prevState: Readonly<{}>): any;
        componentDidUpdate?(prevProps: Readonly<{}>, prevState: Readonly<{}>, snapshot?: any): void;
        componentWillMount?(): void;
        UNSAFE_componentWillMount?(): void;
        componentWillReceiveProps?(nextProps: Readonly<{}>, nextContext: any): void;
        UNSAFE_componentWillReceiveProps?(nextProps: Readonly<{}>, nextContext: any): void;
        componentWillUpdate?(nextProps: Readonly<{}>, nextState: Readonly<{}>, nextContext: any): void;
        UNSAFE_componentWillUpdate?(nextProps: Readonly<{}>, nextState: Readonly<{}>, nextContext: any): void;
    };
    __KONTUR_REACT_UI__: string | undefined;
    displayName: string | undefined;
    defaultRootNode?: Element | null | undefined;
} & T;
export declare const isInstanceWithRootNode: (instance: unknown) => instance is InstanceWithRootNode;
export {};
