import { Visibility } from '../Route';
export type VisibilityEventListener = (visibility: Visibility) => void;
export type GlobalVisibilityEventListener = (sceneId: string, visibility: Visibility) => void;
export default class VisibilityEventHandler {
    private listeners;
    private globalListeners;
    constructor();
    handleComponentVisibility(): void;
    addGlobalVisibilityEventListener(listener: GlobalVisibilityEventListener): void;
    removeGlobalVisibilityEventListener(listener: GlobalVisibilityEventListener): void;
    addVisibilityEventListener(sceneId: string, listener: VisibilityEventListener): void;
    removeVisibilityEventListener(sceneId: string, listener: VisibilityEventListener): void;
}