import { ApplicationRef, ComponentFactoryResolver, Injector } from '@angular/core';
import { Observable } from 'rxjs';
import { PopupInterface } from './popup.interface';
import * as i0 from "@angular/core";
export declare class PopupService {
    private document;
    private platformId;
    private injector;
    private applicationRef;
    private componentFactoryResolver;
    private keyupSub;
    opened: boolean;
    constructor(document: any, platformId: any, injector: Injector, applicationRef: ApplicationRef, componentFactoryResolver: ComponentFactoryResolver);
    showPopup(options?: PopupInterface): Observable<boolean>;
    static ɵfac: i0.ɵɵFactoryDeclaration<PopupService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PopupService>;
}