import type { Friction } from './Friction';
import type { Spring } from './Spring';
export interface ScrollerOptions {
    itemSize?: number;
    scrollWidth?: number;
    scrollHeight?: number;
    friction?: Friction;
    spring?: Spring;
    onSnap: (index: number) => void;
    onTap?: (event: TouchEvent) => void;
}
/**
 * 触摸滚动器，负责处理触摸/鼠标滚动交互、惯性滚动、越界回弹和 snap 对齐。
 */
export declare function useScroller(options: ScrollerOptions): {
    position: import("vue").ComputedRef<number>;
    update: (height: number, _itemSize: number, containerHeight: number, contentHeight: number) => void;
    scrollTo: (_position: number, time?: number) => Promise<void>;
    isIdle: () => boolean;
    handleTouchStart: (event: TouchEvent) => void;
    handleTouchMove: (event: TouchEvent) => void;
    handleTouchEnd: (event: TouchEvent) => void;
};