import "intersection-observer";
import type { PositioningOptions } from "./positioning-options.interface";
/**
 * This class follows a singleton pattern where you can create an instance by calling
 * `new PositioningService()` if you wish, but all instance methods pass through to
 * static methods, so there's really only one set of elements being positioned that's
 * shared between all instances and static usages of PositioningService.
 */
export declare class PositioningService {
    static elements: Map<HTMLElement, PositioningOptions>;
    private static registeredScrollParents;
    private static events;
    private static viewportObserver;
    static on(eventName: any, handler: any): void;
    static off(eventName: any, handler: any): void;
    static once(eventName: any, handler: any): void;
    static checkCollisions(element: HTMLElement, otherElements?: HTMLElement[]): void;
    /**
     * Returns `true` if the element is currently being positioned by the service
     * and `false` otherwise.
     */
    static isPositioned(element: HTMLElement): boolean;
    /**
     * Returns the options currently beinng used for positioning the element,
     * if it is indeed being positioned by the service.
     */
    static getPositioningOptions(element: HTMLElement): PositioningOptions | null;
    /** PositioningService will start controlling the position of the given element. */
    static position(element: HTMLElement, options?: PositioningOptions): void;
    /** PositioningService will stop controlling the position of the given element. */
    static release(element: HTMLElement): void;
    static releaseAll(): void;
    /** PositioningService will refresh the positioning of the given element */
    static refresh(element: HTMLElement): void;
    static refreshAll(): void;
    /** Update the positioning options of a currently positioned element */
    static reposition(element: HTMLElement, newOptions: PositioningOptions): void;
    private static onViewportIntersection;
    private static onElementIntersection;
    private static getRootBounds;
    private static clearStyles;
    private static fixElementPosition;
    private static update;
    on(eventName: any, handler: any): void;
    off(eventName: any, handler: any): void;
    once(eventName: any, handler: any): void;
    isPositioned(element: HTMLElement): boolean;
    getPositioningOptions(element: HTMLElement): PositioningOptions | null;
    position(element: HTMLElement, options?: PositioningOptions): void;
    release(element: HTMLElement): void;
    releaseAll(): void;
    refresh(element: HTMLElement): void;
    refreshAll(): void;
    reposition(element: HTMLElement, newOptions: PositioningOptions): void;
}