import React from "react";
import type { ScreenViewport, Viewport } from "@itwin/core-frontend";
import type { MapLayerDragStateProps, MapLayerState } from "./types";
/**
 * Manages map-layer drag-and-drop interactions.
 *
 * The hook keeps optimistic local ordering during drag, tracks current drop target,
 * restores state when leaving valid targets, and commits/reloads viewport state
 * after drop completion.
 */
export declare function useMapLayerDrag(args: {
    activeViewport: ScreenViewport;
    loadMapLayerSettingsFromViewport: (viewport: Viewport) => void;
    mapLayers: MapLayerState;
    setMapLayers: React.Dispatch<React.SetStateAction<MapLayerState>>;
    suppressReloadRef: React.MutableRefObject<boolean>;
}): MapLayerDragStateProps;
//# sourceMappingURL=useMapLayerDrag.d.ts.map