import type { RefObject } from "react";
import type { ResolvedConfig } from "./types";
export declare const usePanelHeight: (panelRef: RefObject<HTMLDivElement | null>, hasSnapPoints: boolean) => number;
export declare const useViewportHeight: (active: boolean) => number;
/**
 * Height (px) the on-screen keyboard occupies while a field inside `containerRef`
 * is focused, else `0`. Derived from the gap between the layout viewport and the
 * (keyboard-shrunk, possibly panned) visual viewport.
 *
 * Focus-gated to fields *inside the container* so unrelated `visualViewport`
 * changes — Android URL-bar collapse, or typing into the page behind a
 * non-modal sheet — don't move the sheet, and zero while pinch-zoomed since a
 * shrunk visual viewport then isn't a keyboard. rAF-throttled because iOS
 * fires many resize events over the keyboard's open animation.
 */
export declare const useKeyboardInset: (active: boolean, containerRef: RefObject<HTMLElement | null>) => number;
export declare const useBodyScale: (config: ResolvedConfig, isOpen: boolean, prefersReducedMotion: boolean) => void;
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