import { ElementRef } from '@angular/core';
import { ControlValueAccessor, Validator, AbstractControl, ValidationErrors } from '@angular/forms';
export declare class FileUploadComponent implements ControlValueAccessor, Validator {
    private el;
    accept: string;
    placeholder: string;
    get required(): any;
    set required(value: any);
    _disabled: boolean;
    _path: string;
    private file;
    private changeCallback;
    private touchedCallback;
    constructor(el: ElementRef);
    _onFileChange(event: any): void;
    _onInputClick(realFileInputRef: any): void;
    _onOpenDialogClick(realFileInputRef: any): void;
    writeValue(value: any): void;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    setDisabledState?(isDisabled: boolean): void;
    validate(c: AbstractControl): ValidationErrors;
    registerOnValidatorChange?(fn: () => void): void;
}