export type FullscreenTarget = string | HTMLElement | null | undefined;
declare global {
    interface HTMLElement {
        webkitRequestFullscreen?: () => Promise<void>;
        mozRequestFullScreen?: () => Promise<void>;
        msRequestFullscreen?: () => Promise<void>;
    }
    interface Document {
        webkitFullscreenElement?: Element | null;
        mozFullScreenElement?: Element | null;
        msFullscreenElement?: Element | null;
        webkitExitFullscreen?: () => Promise<void>;
        mozCancelFullScreen?: () => Promise<void>;
        msExitFullscreen?: () => Promise<void>;
    }
}
/**
 * 进入全屏
 * @param target 目标元素（选择器字符串或 DOM 元素），不传则全屏 documentElement
 * @returns Promise<void>
 */
export declare function enterFullscreen(target?: FullscreenTarget): Promise<void>;
/**
 * 退出全屏
 * @returns Promise<void>
 */
export declare function exitFullscreen(): Promise<void>;
/**
 * 切换全屏状态
 * @param target 目标元素
 * @returns Promise<boolean> 切换后是否处于全屏
 */
export declare function toggleFullscreen(target?: FullscreenTarget): Promise<boolean>;
/**
 * 判断是否处于全屏状态
 * @returns boolean
 */
export declare function isFullscreen(): boolean;
/**
 * 获取当前全屏元素
 * @returns Element | null
 */
export declare function getFullscreenElement(): Element | null;
/**
 * 监听全屏变化
 * @param callback 回调函数，参数为 (isFullscreen, element)
 * @returns 取消监听的函数
 */
export declare function onFullscreenChange(callback: (isFullscreen: boolean, element: Element | null) => void): () => void;
declare const _default: {
    enter: typeof enterFullscreen;
    exit: typeof exitFullscreen;
    toggle: typeof toggleFullscreen;
    isFullscreen: typeof isFullscreen;
    getElement: typeof getFullscreenElement;
    onChange: typeof onFullscreenChange;
};
export default _default;