import { HttpClient } from '@angular/common/http';
import { MatDialogRef } from '@angular/material/dialog';
import { DomSanitizer, SafeResourceUrl } from '@angular/platform-browser';
import * as i0 from "@angular/core";
export declare class PreviewDialogComponent {
    dialogRef: MatDialogRef<PreviewDialogComponent>;
    data: any;
    private sanitizer;
    private http;
    previewUrl?: SafeResourceUrl;
    extension: any;
    previewAvailable: boolean;
    constructor(dialogRef: MatDialogRef<PreviewDialogComponent>, data: any, sanitizer: DomSanitizer, http: HttpClient);
    ngOnInit(): void;
    getFileExtension(url: string): string;
    loadFile(url: string, fileType: string): void;
    getMimeType(fileType: string): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<PreviewDialogComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<PreviewDialogComponent, "lib-preview-dialog", never, {}, {}, never, never>;
}