import type { LocationTracking, StringPluginArgChoices } from './types';
import { type BaseElem, type SelectorRoot } from "base-elem-js";
export interface IScrollSpyDefaults extends LocationTracking {
    observerOptions: IntersectionObserverInit;
    cssPrefix: string;
    spyNavElems: 'a' | 'button';
    setActiveCssToLi: boolean;
    scrollBehavior: ScrollOptions["behavior"];
    scrollDuration: number;
    spyBody: SelectorRoot | string;
    spyElems: string;
    callback?: ScrollSpyCallBack;
}
export interface IScrollSpyOptions extends Partial<IScrollSpyDefaults> {
    spyBody: SelectorRoot | string;
}
type ScrollSpyCallBack = (topMostEntries: HTMLElement[], navEntries: HTMLElement[]) => void;
export default class ScrollSpy {
    #private;
    inViewEntries: Set<HTMLElement>;
    backUpInViewEntry: HTMLElement;
    params: IScrollSpyOptions;
    element: HTMLElement;
    $spyBody: BaseElem;
    spyContents: HTMLElement[];
    static defaults: IScrollSpyOptions;
    static version: string;
    static pluginName: string;
    constructor(element: HTMLElement, options: IScrollSpyOptions);
    scrollToElement(elemId: string, behavior: ScrollOptions["behavior"]): BaseElem;
    static remove(element: BaseElem, plugin?: ScrollSpy): void;
}
export interface ScrollSpyPlugin {
    scrollSpy(options?: IScrollSpyOptions | StringPluginArgChoices): BaseElem;
}
declare module 'base-elem-js' {
    interface BaseElem extends ScrollSpyPlugin {
    }
}
export {};