import { ElementRef } from '@angular/core';
import { TriggerOnViewportService } from '../services/trigger-on-viewport.service';
import { ImgService } from '../services/img.service';
import { SafeUrl } from '@angular/platform-browser';
declare type status = 'loading' | 'loaded' | 'error';
export declare class ImgDirective {
    elementRef: ElementRef<HTMLImageElement>;
    triggerOnViewportService: TriggerOnViewportService;
    imgService: ImgService;
    constructor(elementRef: ElementRef<HTMLImageElement>, triggerOnViewportService: TriggerOnViewportService, imgService: ImgService);
    status: status;
    private originalSrc;
    private image;
    src: any;
    loadingStrategy: 'lazy' | 'eager';
    thumbnailSrcValue: SafeUrl | string;
    set thumbnailSrc(src: string | SafeUrl);
    get thumbnailSrc(): string | SafeUrl;
    errorSrcValue: SafeUrl | string;
    set errorSrc(src: string | SafeUrl);
    get errorSrc(): string | SafeUrl;
    set source(src: any);
}
export {};