import type { DragMoveEvent, DragOverEvent } from "@dnd-kit/react";
import type { MapLayerDroppableId } from "../widget/MapLayerDragModel";
import type { MapLayerState } from "../hooks/map-layer/types";
/**
 * Pure projection helpers for in-progress map-layer dragging.
 *
 * This module decides how React should optimistically render hover state while a
 * drag is active. The final display-style mutation stays in MapLayerDragModel.
 */
export type MapLayerDragProjection = {
    kind: "restore";
} | {
    kind: "unchanged";
    targetId: MapLayerDroppableId;
} | {
    kind: "project";
    targetId: MapLayerDroppableId;
    mapLayers: MapLayerState;
};
export declare function getMapLayerDragMoveTarget(event: DragMoveEvent): MapLayerDroppableId | undefined;
export declare function projectMapLayerDragOver(mapLayers: MapLayerState, event: DragOverEvent): MapLayerDragProjection;
export declare function refreshCommittedMapLayerIndices(mapLayers: MapLayerState): MapLayerState;
//# sourceMappingURL=MapLayerDragProjection.d.ts.map