import type { Dimensions, MutableRef } from "../types.js";
/**
 * List-nav / grid-nav math. Ported 1:1 from the React source with only
 * framework-specific substitutions:
 *
 * - `React.KeyboardEvent` → native `KeyboardEvent`. Solid hands handlers
 *   the raw event, and `.key` / `.preventDefault` are identical.
 * - `React.RefObject<T[]>` → our `MutableRef<T[]>` (see `../types.ts`),
 *   whose `.current` is a mutable slot.
 *
 * Everything else — `isElementVisible`, grid cell layout, disabled-index
 * probing — is pure data/DOM work.
 */
type DisabledIndices = ReadonlyArray<number> | ((index: number) => boolean);
export declare function isDifferentGridRow(index: number, cols: number, prevRow: number): boolean;
export declare function isIndexOutOfListBounds(list: Array<HTMLElement | null>, index: number): boolean;
export declare function getMinListIndex(listRef: MutableRef<ReadonlyArray<HTMLElement | null>>, disabledIndices?: DisabledIndices | undefined): number;
export declare function getMaxListIndex(listRef: MutableRef<Array<HTMLElement | null>>, disabledIndices?: DisabledIndices | undefined): number;
export declare function findNonDisabledListIndex(list: ReadonlyArray<HTMLElement | null>, { startingIndex, decrement, disabledIndices, amount, }?: {
    startingIndex?: number | undefined;
    decrement?: boolean | undefined;
    disabledIndices?: DisabledIndices | undefined;
    amount?: number | undefined;
}): number;
export declare function getGridNavigatedIndex(list: Array<HTMLElement | null>, { event, orientation, loopFocus, onLoop, rtl, cols, disabledIndices, minIndex, maxIndex, prevIndex, stopEvent: stop, }: {
    event: KeyboardEvent;
    orientation: "horizontal" | "vertical" | "both";
    loopFocus: boolean;
    onLoop?: ((event: KeyboardEvent, prevIndex: number, nextIndex: number) => number) | undefined;
    rtl: boolean;
    cols: number;
    disabledIndices: DisabledIndices | undefined;
    minIndex: number;
    maxIndex: number;
    prevIndex: number;
    stopEvent?: boolean | undefined;
}): number;
/** For each cell index, gets the item index that occupies that cell. */
export declare function createGridCellMap(sizes: Dimensions[], cols: number, dense: boolean): (number | undefined)[];
/** Gets cell index of an item's corner, or -1 when index is -1. */
export declare function getGridCellIndexOfCorner(index: number, sizes: Dimensions[], cellMap: (number | undefined)[], cols: number, corner: "tl" | "tr" | "bl" | "br"): number;
/** Gets all cell indices that correspond to the specified indices. */
export declare function getGridCellIndices(indices: (number | undefined)[], cellMap: (number | undefined)[]): number[];
export declare function isListIndexDisabled(list: ReadonlyArray<HTMLElement | null>, index: number, disabledIndices?: DisabledIndices): boolean;
export declare function isElementVisible(element: Element): boolean;
export {};
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