/** onComplete function type */
export type onCompleteFunctionType = (status: boolean, reason?: string) => void;
/** addEventListner function type */
export type addEventListnerFunctionType = (message: any) => void;
/** Represents a window or frame within the host app. */
export interface IAppWindow {
    /**
     * Send a message to the AppWindow.
     *
     * @param message - The message to send
     * @param onComplete - The callback to know if the postMessage has been success/failed.
     */
    postMessage(message: any, onComplete?: onCompleteFunctionType): void;
    /**
     * Add a listener that will be called when an event is received from this AppWindow.
     *
     * @param type - The event to listen to. Currently the only supported type is 'message'.
     * @param listener - The listener that will be called
     */
    addEventListener(type: string, listener: Function): void;
}
/**
 * An object that application can utilize to establish communication
 * with the child window it opened, which contains the corresponding task.
 */
export declare class ChildAppWindow implements IAppWindow {
    /**
     * Send a message to the ChildAppWindow.
     *
     * @param message - The message to send
     * @param onComplete - The callback to know if the postMessage has been success/failed.
     */
    postMessage(message: any, onComplete?: onCompleteFunctionType): void;
    /**
     * Add a listener that will be called when an event is received from the ChildAppWindow.
     *
     * @param type - The event to listen to. Currently the only supported type is 'message'.
     * @param listener - The listener that will be called
     */
    addEventListener(type: string, listener: addEventListnerFunctionType): void;
}
/**
 * An object that is utilized to facilitate communication with a parent window
 * that initiated the opening of current window. For instance, a dialog or task
 * module would utilize it to transmit messages to the application that launched it.
 */
export declare class ParentAppWindow implements IAppWindow {
    /** Represents a parent window or frame. */
    private static _instance;
    /** Get the parent window instance. */
    static get Instance(): IAppWindow;
    /**
     * Send a message to the ParentAppWindow.
     *
     * @param message - The message to send
     * @param onComplete - The callback to know if the postMessage has been success/failed.
     */
    postMessage(message: any, onComplete?: onCompleteFunctionType): void;
    /**
     * Add a listener that will be called when an event is received from the ParentAppWindow.
     *
     * @param type - The event to listen to. Currently the only supported type is 'message'.
     * @param listener - The listener that will be called
     */
    addEventListener(type: string, listener: addEventListnerFunctionType): void;
}