import { Data } from "josm";
import { ScrollAnimationOptions } from "../types";
import "xrray";
import "xtring";
type ReadonlyData<T> = Omit<Data<T>, "set">;
export declare class ScrollData extends Data<number> {
    constructor(scrollPos?: number);
    scrollTrigger(at: number | ReadonlyData<number>, margin?: number | ReadonlyData<number>): ScrollTrigger;
    tunnel<Ret, Dat extends Data<Ret>>(func: (val: number) => Ret, init: boolean | undefined, useThisConstructor: {
        new (...a: any[]): Dat;
    }): Dat;
    tunnel<Ret>(func: (val: number) => Ret, init: boolean | undefined, useThisConstructor: true): this extends Data<Ret> ? this : Data<Ret>;
    tunnel<Ret>(func: (val: number) => Ret, init?: boolean, useThisConstructor?: boolean): Data<Ret>;
}
declare class InnerElemScrollData extends ScrollData {
    constructor(elem: Element | Window, usePageEndAsReference?: boolean, _direction?: "x" | "y" | "one", notifyOnAllChanges?: boolean);
    tunnel<Ret>(func: (val: number) => Ret, init?: boolean): this extends Data<Ret> ? this : Data<Ret>;
    tunnel<Ret>(func: (val: number) => Ret, init: boolean | undefined): Data<number>;
}
export type ElemScrollData = InnerElemScrollData & {
    set(prog: number, animOptions?: ScrollAnimationOptions, dontTriggerScrollEvent?: boolean): number;
};
export declare const ElemScrollData: new (elem: Element | Window, usePageEndAsReference?: boolean, direction?: "x" | "y" | "one", notifyOnAllChanges?: boolean) => ElemScrollData;
export declare class ScrollTrigger {
    private scrollData;
    protected listener: {
        forward: ((currentPos: number) => void)[];
        backward: ((currentPos: number) => void)[];
    };
    constructor(scrollData: ReadonlyData<number>, at: number | ReadonlyData<number>, margin?: number | ReadonlyData<number>);
    currentState: ReadonlyData<keyof typeof this.listener>;
    on(direction: keyof typeof this.listener, listener: (currentPos: number) => void): this;
    off(direction: keyof typeof this.listener, listener: (currentPos: number) => void): this;
}
export {};