import { type RefObject } from 'react';
export interface PresentationThumbnailWindow {
    bottomSpacerHeight: number;
    end: number;
    requestFocus: (index: number) => void;
    requestFocusById: (slideId: string) => void;
    start: number;
    topSpacerHeight: number;
    windowed: boolean;
}
export declare function usePresentationThumbnailWindow({ slideIds, selectedSlideId, viewMode, viewportRef, zoom, }: {
    slideIds: readonly string[];
    selectedSlideId: string;
    viewMode: 'normal' | 'sorter';
    viewportRef: RefObject<HTMLElement | null>;
    zoom: number;
}): PresentationThumbnailWindow;