import * as React from "react";
export declare function enablePointerOnIFrames(enable: boolean, currentDocument: Document): void;
export declare function getElementsByTagName(tag: string, currentDocument: Document): Element[];
export declare let Utils_dragging: boolean;
export declare function startDrag(doc: Document, event: React.PointerEvent<HTMLElement>, drag: (x: number, y: number) => void, dragEnd: () => void, dragCancel: () => void): void;
export declare function copyInlineStyles(source: HTMLElement, target: HTMLElement): boolean;
export declare function isSafari(): boolean;
export declare function getPageMetrics(win?: Window): {
    scrollTop: number;
    scrollLeft: number;
    fullHeight: number;
    fullWidth: number;
    viewportHeight: number;
    viewportWidth: number;
};