import { type MutableRefObject, type RefObject } from "react";
import type { CollectionItem } from "./collectionTypes";
export interface ViewportTrackingProps<Item> {
    containerRef: RefObject<HTMLElement>;
    contentRef?: RefObject<HTMLElement>;
    highlightedIdx?: number;
    indexPositions: CollectionItem<Item>[];
    stickyHeaders?: boolean;
}
export interface ViewportTrackingResult<Item> {
    isScrolling: MutableRefObject<boolean>;
    scrollIntoView: (item: CollectionItem<Item>) => void;
}
export declare const useViewportTracking: <Item>({ containerRef, contentRef, highlightedIdx, indexPositions, stickyHeaders, }: ViewportTrackingProps<Item>) => ViewportTrackingResult<Item>;