import type { RefObject } from "react";
import type { DragConfig, DragState } from "./drag-types";
/**
 * Hook that manages drag gestures that can dismiss a sheet panel.
 *
 * Gesture pipeline:
 * 1. Dead zone (10px) — ignores micro-movements
 * 2. Angle check (35°) — must be roughly aligned with dismiss axis
 * 3. Scroll conflict — yields to scrollable containers not at edge
 * 4. Commit — drag is active, applies offset via `onDragUpdate`
 * 5. Release — velocity + threshold determine close/snap/bounce-back
 *
 * Opposite-direction drag uses √(offset) damping for elastic
 * rubber-band resistance (same physics as iOS over-scroll).
 *
 * When `snapHeights` is provided, release targeting uses
 * `findSnapTarget()` instead of the simple threshold check.
 */
export declare const useDrag: (panelRef: RefObject<HTMLDivElement | null>, config: DragConfig, onDragUpdate: (state: DragState) => void) => void;
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