/// <reference types="@dq-next/types" />
export interface ViewportOffsetResult {
    left: number;
    top: number;
    right: number;
    bottom: number;
    rightIncludeBody: number;
    bottomIncludeBody: number;
}
export declare function hasClass(el: Element, cls: string): boolean;
export declare function addClass(el: Element, cls: string): void;
export declare function removeClass(el: Element, cls: string): void;
export declare function getViewportOffset(element: Element): ViewportOffsetResult;
export declare function hackCss(attr: string, value: string): any;
export declare const domEvent: {
    on: typeof on;
    off: typeof off;
    once: typeof once;
};
export declare function on(element: Element | HTMLElement | Document | Window, event: string, handler: EventListenerOrEventListenerObject): void;
declare function off(element: Element | HTMLElement | Document | Window, event: string, handler: Fn): void;
declare function once(el: HTMLElement, event: string, fn: EventListener): void;
export declare enum fileType {
    BLOB = "blob",
    FILE = "file"
}
export interface dom2imgFileParams {
    dom: HTMLElement;
    fileName?: string;
    type: fileType | 'base64';
    scale?: number;
}
export declare function dom2imgFile<T extends File | Blob | string>({ dom, fileName, type, scale, }: dom2imgFileParams): Promise<T>;
export declare function setRem(baseSize?: number): void;
export declare function getRem(): number;
interface coordinateInfo {
    x: number;
    y: number;
}
export declare function checkInDOM(target: HTMLElement, dom: HTMLElement | coordinateInfo): boolean | undefined;
type domCallbackType = (ele: Element) => void;
export declare function domForeach(doms: HTMLCollectionOf<Element>, callback: domCallbackType): void;
export {};