import { type RefObject } from "react";
type WidgetDisplayMode = "inline" | "pip" | "fullscreen";
/** Native Fullscreen API first; CSS overlay only when `requestFullscreen` fails. */
export declare function useWidgetDisplayModeControls({ containerRef, displayMode, setDisplayMode, }: {
    /** Shell that includes exit chrome + widget; promoted via `requestFullscreen`. */
    containerRef: RefObject<HTMLElement | null>;
    displayMode: WidgetDisplayMode;
    setDisplayMode: (mode: WidgetDisplayMode) => void;
}): {
    handleDisplayModeChange: (mode: WidgetDisplayMode) => Promise<void>;
    fullscreenShellClassName: string | undefined;
    pipShellClassName: string | undefined;
    isFullscreen: boolean;
    isPip: boolean;
};
export {};
//# sourceMappingURL=widget-fullscreen.d.ts.map