import { NgZone, OnDestroy, OnChanges, SimpleChanges } from '@angular/core';
import { DomSanitizer, SafeResourceUrl } from '@angular/platform-browser';
import { EventEmitter } from '@angular/core';
export declare class NgxDocViewerComponent implements OnChanges, OnDestroy {
    private domSanitizer;
    private ngZone;
    fullUrl: SafeResourceUrl;
    private checkIFrameSubscription;
    private configuredViewer;
    constructor(domSanitizer: DomSanitizer, ngZone: NgZone);
    loaded: EventEmitter<any>;
    url: string;
    googleCheckInterval: number;
    viewer: string;
    ngOnDestroy(): void;
    ngOnChanges(changes: SimpleChanges): void;
    checkIFrame(iframe: HTMLIFrameElement): void;
    reloadIFrame(iframe: HTMLIFrameElement): void;
}