import { nothing, type TemplateResult } from 'lit';
import type { NuiType } from '../../types/nui-type.js';
import type { ScrollTopBehavior, ScrollTopTarget } from './types.js';
export declare const DEFAULT_SCROLL_TOP_ICON = "mdi:chevron-up";
export interface NuiScrollTopViewState {
    visible: boolean;
    target: ScrollTopTarget;
    threshold: number;
    icon: string;
    behavior: ScrollTopBehavior | string;
    rounded: boolean;
    nuiType: NuiType;
    scrollTopClass: string;
    scrollContainer: string;
}
export declare function getScrollTopClass(scrollTopClass: string): string;
export declare function getWindowScrollTop(): number;
export declare function shouldShowScrollTop(scrollTop: number, threshold: number): boolean;
export declare function getScrollParent(element: HTMLElement, target: ScrollTopTarget, scrollContainer?: string): Window | HTMLElement | null;
export declare function getScrollTopIcon(icon: string): string;
export declare function renderScrollTop(state: NuiScrollTopViewState, onClick: () => void): TemplateResult | typeof nothing;
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