/**
 * @license
 *-------------------------------------------------------------------------------------------
 * Copyright © 2026 Progress Software Corporation. All rights reserved.
 * Licensed under commercial license. See LICENSE.md in the package root for more information
 *-------------------------------------------------------------------------------------------
 */
import { Page } from './settings';
/**
 * @hidden
 */
export interface ComponentState {
    skip?: number;
    selectedIndex?: number;
    opened?: boolean;
    event?: any;
}
/**
 * @hidden
 */
export default class VirtualScroll {
    container: HTMLDivElement | null;
    scrollElement: HTMLDivElement | null;
    list: any;
    containerHeight: number;
    skip: number;
    total: number;
    enabled: boolean;
    pageSize: number;
    itemHeight: number;
    PageChange: (event: Page, syntheticEvent: any) => void;
    ScrollChange: (Event: any) => void;
    private prevScrollPos;
    private listTranslate;
    private scrollSyncing;
    constructor();
    get translate(): number;
    scrollerRef: (element: HTMLDivElement | null) => void;
    calcScrollElementHeight: () => boolean;
    changePage(skip: number, e: any): void;
    translateTo(dY: number): void;
    reset(): void;
    scrollToEnd(): void;
    localScrollUp(e: any): void;
    localScrollDown(e: any): void;
    scrollNonStrict(e: any): void;
    scrollHandler(this: any, e: any): void;
    validateTranslate(translate: number): number;
}