| /******************************************************************************** | |
| * Copyright (c) 2015-2018 Contributors to the Eclipse Foundation | |
| * | |
| * See the NOTICE file(s) distributed with this work for additional | |
| * information regarding copyright ownership. | |
| * | |
| * This program and the accompanying materials are made available under the | |
| * terms of the Eclipse Public License v. 2.0 which is available at | |
| * http://www.eclipse.org/legal/epl-2.0. | |
| * | |
| * SPDX-License-Identifier: EPL-2.0 | |
| * | |
| ********************************************************************************/ | |
| import { Pipe, PipeTransform } from '@angular/core'; | |
| // this projects imports | |
| import { FormatSize } from '../model/file-explorer.model'; | |
| @Pipe({name: 'fileSize'}) | |
| export class FileSizePipe implements PipeTransform { | |
| constructor() {} | |
| public transform(bytes: number | string, format?: FormatSize) { | |
| let result = '-'; | |
| if (typeof(bytes) === 'string') { | |
| result = bytes; | |
| } else { | |
| if (bytes == undefined) { | |
| result = '-'; | |
| } | |
| if (format == undefined) { | |
| format = FormatSize.BINARY; | |
| } | |
| if (Math.abs(bytes) < format) { | |
| result = bytes + ' B'; | |
| } | |
| let units: string[]; | |
| switch (format) { | |
| case FormatSize.DECIMAL: | |
| units = ['kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']; | |
| break; | |
| case FormatSize.BINARY: | |
| units = ['KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']; | |
| } | |
| let u = -1; | |
| do { | |
| bytes /= format; | |
| ++u; | |
| } while (Math.abs(bytes) >= format && u < units.length - 1); | |
| result = bytes.toFixed(1) + ' ' + units[u]; | |
| } | |
| return result; | |
| } | |
| } |