export declare const DOCUMENT_COMMENT_WINDOW_THRESHOLD = 48;
export declare const DOCUMENT_COMMENT_WINDOW_LIMIT = 32;
export declare const DOCUMENT_COMMENT_WINDOW_OVERSCAN = 4;
export interface DocumentCommentWindowRange {
    end: number;
    start: number;
    windowed: boolean;
}
export declare function useDocumentCommentWindow({ keys, onRovingKeyChange, pinnedKeys, rovingKey, }: {
    keys: readonly string[];
    onRovingKeyChange: (key: string) => void;
    pinnedKeys?: readonly (string | null | undefined)[];
    rovingKey: string | null;
}): {
    focusAt: (requestedIndex: number) => void;
    mountedIndices: number[];
    onItemFocus: (index: number) => void;
    onViewportAnchorChange: (index: number) => void;
    range: DocumentCommentWindowRange;
    registerItem: (key: string, element: HTMLElement | null) => void;
    rovingIndex: number;
};
export declare function calculateDocumentCommentWindowRange({ anchorIndex, itemCount, limit, overscan, threshold, }: {
    anchorIndex: number;
    itemCount: number;
    limit?: number;
    overscan?: number;
    threshold?: number;
}): DocumentCommentWindowRange;
export declare function documentCommentWindowIndices({ itemCount, pinnedIndices, range, }: {
    itemCount: number;
    pinnedIndices: readonly number[];
    range: DocumentCommentWindowRange;
}): number[];
export declare function documentCommentKeyboardDestination(key: string, index: number, itemCount: number): number | null;
export declare function focusDocumentCommentItem(element: HTMLElement): void;
export declare function scrollDocumentCommentItemIntoView(element: HTMLElement): void;