import { ElementRef, EventEmitter, ChangeDetectorRef, OnDestroy } from '@angular/core';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import { FormControlInput, FormControlHost, FormControlErrorStateAgent } from '../form-control-group/index';
export declare class FileInputComponent implements ControlValueAccessor, FormControlInput, OnDestroy {
    private cdRef;
    ngControl?: NgControl;
    private formControlHost?;
    private _errorStateAgent?;
    constructor(cdRef: ChangeDetectorRef, ngControl?: NgControl, formControlHost?: FormControlHost, _errorStateAgent?: FormControlErrorStateAgent);
    _hostClasses: boolean;
    _hostAttrRole: string;
    private stateChangedEmitter;
    stateChanged: import("rxjs").Observable<void>;
    controlType: string;
    private _disabled;
    private generatedId;
    id?: string;
    readonly elementId: string;
    valueChange: EventEmitter<any>;
    disabled: boolean;
    errorStateAgent?: FormControlErrorStateAgent;
    readonly hasError: boolean;
    accept?: string;
    multiple: boolean;
    value: FileList | undefined;
    files: EventEmitter<FileList>;
    tabindex: number;
    readonly isDisabled: boolean;
    invalidFiles: boolean;
    isDragging: boolean;
    isFocused: boolean;
    input: ElementRef;
    filename: string | undefined;
    readonly fileInput: HTMLInputElement | undefined;
    onFocus(): void;
    onBlur(): void;
    onLabelClick(event: Event): void;
    onInputChange(): void;
    checkFiles(files: FileList): void;
    keydown(ev: any): void;
    onClick(value: any): void;
    onDragOver(e: any): void;
    onDragLeave(e: any): void;
    onDrop(e: any): void;
    updateFiles(files: FileList): void;
    ngOnDestroy(): void;
    /**
     * things needed for ControlValueAccessor-Interface
     */
    private onChange;
    private onTouched;
    writeValue(files: FileList): void;
    registerOnChange(fn: any): void;
    registerOnTouched(fn: any): void;
    setDisabledState(isDisabled: boolean): void;
}