import { Viewer } from "../viewer/viewer";
export type MsgFunc = (message: string | undefined) => void;
export interface LogRef {
    enable: boolean;
}
/**
 * API for the UltraViewer component.
 * Wraps calls to update the viewer and display messages.
 */
export declare class ComponentRef {
    private _viewer;
    private _message;
    readonly logs: LogRef;
    constructor(viewer: Viewer, message: MsgFunc, logs: LogRef);
    get viewer(): Viewer;
    /**
     * Display a message in the react ui.
     * @param message message to display. Undefined to clear the message.
     */
    message(message: string | undefined): void;
    /**
     * Load a vim file from a url or local path on the server.
     * @param url url or local path to the vim file.
     * @returns a request object that can be used to wait for the load to complete.
     */
    load(url: string): import("../viewer/loadRequest").ILoadRequest;
}