import { EventEmitter, AfterViewInit } from '@angular/core';
import { ButtonComponent } from './button.component';
export declare class FileObject {
    filesize: string;
    filetype: string;
    filename: string;
    base64: string;
}
export declare class ButtonFileOpenerComponent extends ButtonComponent implements AfterViewInit {
    extensions: string;
    fileUpload: EventEmitter<any>;
    true: any;
    allowedExtensions: string;
    private fileObject;
    constructor();
    ngAfterViewInit(): void;
    onFileSelectaa(event: any): void;
    onFileSelect(e: any): void;
    private _handleReaderLoaded(e);
}