import { Component, ContextType, ReactNode, HTMLAttributes, MouseEvent, KeyboardEvent, KeyboardEventHandler } from 'react';
import { ConfigContext } from '@befe/brick-core';
export declare const SWITCH_SISES: readonly ["xs", "sm", "md"];
type SwitchSize = (typeof SWITCH_SISES)[number];
type SwitchPropsFromButton = Pick<HTMLAttributes<HTMLButtonElement>, 'onClick' | 'onMouseDown' | 'onBlur' | 'onFocus'>;
export interface SwitchProps extends SwitchPropsFromButton {
    /**
     * 自定义 class
     */
    className?: string;
    /**
     * 尺寸
     * use config context `baseSize` as default
     */
    size?: SwitchSize;
    /**
     * on/off 状态控制值
     */
    checked?: boolean;
    /**
     * on/off 状态默认值
     */
    defaultChecked?: boolean;
    /**
     * 是否使用内建的 icon label
     */
    iconLabel?: boolean;
    /**
     * on 状态的内容
     */
    checkedLabel?: ReactNode;
    /**
     * off 状态的内容
     */
    uncheckedLabel?: ReactNode;
    /**
     * 是否禁用
     */
    disabled?: boolean;
    /**
     * 控制是否处于 loading 状态
     * - loading spin icon 会根据 loadingDelay 延迟显示
     * - loading 状态 click 立刻无效，但无 disabled 样式
     */
    loading?: boolean;
    /**
     * loading 图标的延迟响应时间
     * 单位 ms
     * 0 为立即显示
     */
    loadingDelay?: number;
    /**
     * checked 变化前的回调，根据返回值进行 checked 的变化
     * - promise，当 promise resolve 后进行
     * - false，visible 不进行
     * - true | void，立即进行
     */
    beforeChange?: (checked: boolean, e?: MouseEvent<HTMLButtonElement> | KeyboardEvent<HTMLButtonElement>) => Promise<any> | boolean | void;
    /**
     * checked 变化时的回调
     */
    onChange?: (checked: boolean, e?: MouseEvent<HTMLButtonElement> | KeyboardEvent<HTMLButtonElement>) => void;
}
interface SwitchState {
    checked: boolean;
    showLoading: boolean;
    asyncLoading: boolean;
}
export declare class Switch extends Component<SwitchProps, SwitchState> {
    static displayName: string;
    static defaultProps: {
        className: string;
        defaultChecked: boolean;
        loadingDelay: number;
    };
    static contextType: import("react").Context<import("@befe/brick-core").ConfigContextValue>;
    static getDerivedStateFromProps(nextProps: SwitchProps): Partial<SwitchProps> | null;
    refButton: import("react").RefObject<HTMLButtonElement>;
    context: ContextType<typeof ConfigContext>;
    state: SwitchState;
    showLoadingHandler: import("@befe/brick-utils").DelayHandler<[], void>;
    get className(): string;
    get size(): "xs" | "sm" | "md";
    get checkedLabel(): {} | null;
    get uncheckedLabel(): {} | null;
    get isUncontrolledLoading(): boolean;
    get isClickDisabled(): boolean;
    handlerClick: (e: MouseEvent<HTMLButtonElement>) => void;
    handleKeyDown: KeyboardEventHandler<HTMLButtonElement>;
    changeChecked(checked: boolean, e?: MouseEvent<HTMLButtonElement> | KeyboardEvent<HTMLButtonElement>): void;
    setAsyncLoading(loading: boolean): void;
    setShowLoading(showLoading: boolean): void;
    renderLabel(): import("react/jsx-runtime").JSX.Element | null;
    renderLoading(): import("react/jsx-runtime").JSX.Element | null;
    componentDidUpdate(prevProps: Readonly<SwitchProps>): void;
    componentWillUnmount(): void;
    render(): import("react/jsx-runtime").JSX.Element;
}
export {};