import { EventEmitter, OnInit, TrackByFunction, OnDestroy } from '@angular/core';
import { UntypedFormArray, UntypedFormBuilder, UntypedFormGroup, ValidatorFn } from '@angular/forms';
import { Observable } from 'rxjs';
import { HttpEvent } from '@angular/common/http';
import { UploadedFile, FileUploadEvent, FileProgressEvent, FileErrorEvent, UploadResponse } from './gps-file-upload.model';
import * as i0 from "@angular/core";
export declare class GpsFileUploadComponent implements OnInit, OnDestroy {
    private formBuilder;
    acceptedMimeTypes: string[];
    maxFiles: number;
    maxFileSizeInKB: number;
    autoUploadFiles: boolean;
    showPreview: boolean;
    allowDragDrop: boolean;
    uploadFunction?: (file: File) => Observable<HttpEvent<UploadResponse>>;
    dragAndDropText: string;
    orText: string;
    browseForFileText: string;
    maxFileSizeInstructionText: string;
    maxFilesText: string;
    deleteSelectedFileText: string;
    maxFileSizeErrorText: string;
    invalidFileTypesErrorText: string;
    uploadButtonText: string;
    cancelButtonText: string;
    showUploadButtons: boolean;
    filesSelected: EventEmitter<UploadedFile[]>;
    fileUploaded: EventEmitter<FileUploadEvent>;
    uploadProgress: EventEmitter<FileProgressEvent>;
    uploadError: EventEmitter<FileErrorEvent>;
    fileError: EventEmitter<FileErrorEvent>;
    fileRemoved: EventEmitter<File>;
    uploadCancelled: EventEmitter<void>;
    private readonly imageTypes;
    private readonly textTypes;
    readonly trackByIndex: TrackByFunction<any>;
    allowedFiles: string;
    fileTypeExts: string;
    maxFileSizeInBytes: number;
    form: UntypedFormGroup;
    private subscriptions;
    constructor(formBuilder: UntypedFormBuilder);
    ngOnInit(): void;
    get formFiles(): UntypedFormArray;
    private getFileExtension;
    private isImageFile;
    requiredFileType(types: string[]): ValidatorFn;
    validateMaxFileSize(size: number): ValidatorFn;
    canUploadFiles(): boolean;
    onDragOver(event: DragEvent): void;
    onDrop(event: DragEvent): void;
    onFileChange(event: Event): void;
    getControlValue(control: any, key: string): any;
    addFiles(files: FileList): void;
    startUpload(): void;
    private getEventMessage;
    private fileUploadProgress;
    private handleError;
    createFormGroup(data: UploadedFile): UntypedFormGroup;
    deleteFile(index: number): void;
    hasFilesToUpload(): boolean;
    cancelUpload(): void;
    ngOnDestroy(): void;
    formatBytes(bytes: number, decimals?: number): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<GpsFileUploadComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<GpsFileUploadComponent, "gps-file-upload", never, { "acceptedMimeTypes": { "alias": "acceptedMimeTypes"; "required": false; }; "maxFiles": { "alias": "maxFiles"; "required": false; }; "maxFileSizeInKB": { "alias": "maxFileSizeInKB"; "required": false; }; "autoUploadFiles": { "alias": "autoUploadFiles"; "required": false; }; "showPreview": { "alias": "showPreview"; "required": false; }; "allowDragDrop": { "alias": "allowDragDrop"; "required": false; }; "uploadFunction": { "alias": "uploadFunction"; "required": false; }; "dragAndDropText": { "alias": "dragAndDropText"; "required": false; }; "orText": { "alias": "orText"; "required": false; }; "browseForFileText": { "alias": "browseForFileText"; "required": false; }; "maxFileSizeInstructionText": { "alias": "maxFileSizeInstructionText"; "required": false; }; "maxFilesText": { "alias": "maxFilesText"; "required": false; }; "deleteSelectedFileText": { "alias": "deleteSelectedFileText"; "required": false; }; "maxFileSizeErrorText": { "alias": "maxFileSizeErrorText"; "required": false; }; "invalidFileTypesErrorText": { "alias": "invalidFileTypesErrorText"; "required": false; }; "uploadButtonText": { "alias": "uploadButtonText"; "required": false; }; "cancelButtonText": { "alias": "cancelButtonText"; "required": false; }; "showUploadButtons": { "alias": "showUploadButtons"; "required": false; }; }, { "filesSelected": "filesSelected"; "fileUploaded": "fileUploaded"; "uploadProgress": "uploadProgress"; "uploadError": "uploadError"; "fileError": "fileError"; "fileRemoved": "fileRemoved"; "uploadCancelled": "uploadCancelled"; }, never, never, false, never>;
}