import { type RefObject } from 'react';
import type { AppShellExpandFrom } from './AppShell';
export type RevealPhase = 'initial' | 'expanding' | 'revealing' | 'done';
interface UseShellAnimationOptions {
    reveal?: boolean;
    expandFrom?: AppShellExpandFrom;
    onRevealed?: () => void;
    appearedProp?: boolean;
}
export declare function useShellAnimation(shellRef: RefObject<HTMLDivElement | null>, options: UseShellAnimationOptions): {
    phase: RevealPhase;
    targetRect: {
        top: number;
        left: number;
    } | null;
    expandStyle: import("react").CSSProperties | undefined;
    appeared: boolean;
    handleRevealOverlayTransitionEnd: (e: React.TransitionEvent) => void;
    handleExpandTransitionEnd: (e: React.TransitionEvent) => void;
};
export {};