/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
/**
 * Represents a window in a possible chain of iframes
 */
export interface IWindowChainElement {
    /**
     * The window object for it
     */
    window: Window;
    /**
     * The iframe element inside the window.parent corresponding to window
     */
    iframeElement: Element | null;
}
export declare class IframeUtils {
    /**
     * Returns a chain of embedded windows with the same origin (which can be accessed programmatically).
     * Having a chain of length 1 might mean that the current execution environment is running outside of an iframe or inside an iframe embedded in a window with a different origin.
     * To distinguish if at one point the current execution environment is running inside a window with a different origin, see hasDifferentOriginAncestor()
     */
    static getSameOriginWindowChain(): IWindowChainElement[];
    /**
     * Returns true if the current execution environment is chained in a list of iframes which at one point ends in a window with a different origin.
     * Returns false if the current execution environment is not running inside an iframe or if the entire chain of iframes have the same origin.
     */
    static hasDifferentOriginAncestor(): boolean;
    /**
     * Returns the position of `childWindow` relative to `ancestorWindow`
     */
    static getPositionOfChildWindowRelativeToAncestorWindow(childWindow: Window, ancestorWindow: Window | null): {
        top: number;
        left: number;
    };
}