import { AfterViewInit, ChangeDetectorRef, OnChanges, OnDestroy, SimpleChanges } from '@angular/core';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import { DokuFormFieldAccessor, DokuFormFieldAccessorValidateState, DokuFormFieldAccessorValidateValue, DokuFormFieldOptions } from '../form-field';
import * as i0 from "@angular/core";
export declare class DokuInputFileUpload implements DokuFormFieldAccessor, ControlValueAccessor, AfterViewInit, OnChanges, OnDestroy {
    private cdr;
    private ngControl?;
    onChange?: (value: File) => void;
    onTouched?: () => void;
    onDisable?: (value: boolean) => void;
    onValidate?: (value?: DokuFormFieldAccessorValidateValue, state?: DokuFormFieldAccessorValidateState) => void;
    value?: File | string;
    fieldOptions?: DokuFormFieldOptions;
    private loadingChanges$;
    private destroy$;
    protected imagePreviewSrc?: string;
    /**
     * Text that is shown as an input title.
     */
    title: string;
    /**
     * Text that is shown as an input subtitle.
     */
    subtitle: string;
    /**
     * Text that is shown in loading state.
     */
    loadingText: string;
    /**
     * Comma-separated list of one or more file types, or unique file type specifiers,
     * describing which file types to allow. The default is "*".
     */
    accept: string;
    /**
     * Whether input file upload should be on disabled state. The default is `false`.
     */
    get disabled(): boolean;
    set disabled(val: boolean);
    private _disabled;
    /**
     * Whether input file upload should be on loading state. The default is `false`.
     */
    get loading(): unknown;
    set loading(val: unknown);
    private _loading;
    constructor(cdr: ChangeDetectorRef, ngControl?: NgControl | undefined);
    ngAfterViewInit(): void;
    onFileSelected(e: Event): void;
    ngOnChanges(changes: SimpleChanges): void;
    setDisabledState?(isDisabled: boolean): void;
    /**
     * Listen and assign NgControl status to `doku-form-field`
     * to complete behavior and functionality of the field
     * (hint, error, success message, and styling).
     */
    private _listenNgControlStatus;
    private _showImagePreview;
    private _checkFileIsImage;
    private _checkStringIsImage;
    ngOnDestroy(): void;
    writeValue(value: File | string): void;
    registerOnTouched(fn: () => void): void;
    registerOnDisable(fn: (value: boolean) => void): void;
    registerOnChange(fn: (value: File) => void): void;
    registerOnValidate(fn: (value?: DokuFormFieldAccessorValidateValue) => void): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DokuInputFileUpload, [null, { optional: true; self: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<DokuInputFileUpload, "doku-input-file-upload", ["dokuInputFileUpload"], { "title": "title"; "subtitle": "subtitle"; "loadingText": "loadingText"; "accept": "accept"; "disabled": "disabled"; "loading": "loading"; }, {}, never, never, true>;
}