import { HttpClient } from '@angular/common/http';
import { ElementRef, OnDestroy } from '@angular/core';
import { Subscription } from 'rxjs';
import { VtsUploadFile, ZipButtonOptions } from './interface';
import * as i0 from "@angular/core";
export declare class VtsUploadBtnComponent implements OnDestroy {
    private http;
    reqs: {
        [key: string]: Subscription;
    };
    private destroy;
    file: ElementRef;
    options: ZipButtonOptions;
    onClick(): void;
    onKeyDown(e: KeyboardEvent): void;
    onFileDrop(e: DragEvent): void;
    onChange(e: Event): void;
    private traverseFileTree;
    openDialog(): void;
    private attrAccept;
    private attachUid;
    uploadFiles(fileList: FileList | File[]): void;
    upload(file: VtsUploadFile, fileList: VtsUploadFile[]): void;
    private post;
    private xhr;
    private clean;
    abort(file?: VtsUploadFile): void;
    constructor(http: HttpClient);
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<VtsUploadBtnComponent, [{ optional: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<VtsUploadBtnComponent, "[vts-upload-btn]", ["vtsUploadBtn"], { "options": { "alias": "options"; "required": false; }; }, {}, never, ["*"], false, never>;
}