import * as React from 'react';
interface ITextareaProps {
    value?: string;
    className?: string;
    readOnly?: boolean;
    disabled?: boolean;
    required?: boolean;
    placeholder?: string;
    autoResize?: boolean;
    rows?: number;
    onChange?: Function;
    onKeyDown?: Function;
    onFocus?: Function;
    onBlur?: Function;
}
interface ITextareaStates {
    value: string;
}
export declare class Textarea extends React.Component<ITextareaProps, ITextareaStates> {
    private textAreaRef;
    constructor(props: ITextareaProps);
    static defaultProps: {
        value: string;
        autoResize: boolean;
        rows: number;
    };
    componentDidMount(): void;
    componentWillReceiveProps(nextProps: any): void;
    private resizeTextarea;
    private onChange;
    private onKeyDown;
    private onFocus;
    private onBlur;
    __onSetFocus: () => void;
    private __autoresizeUpdate;
    render(): JSX.Element;
}
export {};