/*!
 * Paradigm Framework - Angular Wrapper
 * Copyright (c) 2017 Miracle Devs, Inc
 * Licensed under MIT (https://github.com/MiracleDevs/Paradigm.Web.Shared/blob/master/LICENSE)
 */
import { ServiceBase } from './base.service';
export declare class FileService extends ServiceBase {
    /**
     * Reads a file as a blog.
     * @param file the file that needs to be read.
     * @param onProgress A progress handler to receive progress reports.
     */
    readAsBlob(file: File, onProgress?: (percentage: number) => void): Promise<Blob>;
    /**
     * Reads a file as text.
     * @param file the file that needs to be read.
     * @param onProgress A progress handler to receive progress reports.
     */
    readAsText(file: File, onProgress?: (percentage: number) => void): Promise<string>;
    /**
     * Reads a file as binary text.
     * @param file the file that needs to be read.
     * @param onProgress A progress handler to receive progress reports.
     */
    readAsBinaryString(file: File, onProgress?: (percentage: number) => void): Promise<string>;
    /**
     * Reads a file and handles all the events and event removing.
     * @param file the file to read.
     * @param action the reading action.
     * @param progress a progress handler to report progress.
     */
    private read;
}