| 提交 | 用户 | age | ||
| ba068b | 1 | import { openWindow } from '..'; |
| 234c1d | 2 | import { dataURLtoBlob, urlToBase64 } from './base64Conver'; |
| a161bf | 3 | |
| 661db0 | 4 | /** |
| V | 5 | * Download online pictures |
| 6 | * @param url | |
| 7 | * @param filename | |
| 8 | * @param mime | |
| 9 | * @param bom | |
| 10 | */ | |
| 11 | export function downloadByOnlineUrl(url: string, filename: string, mime?: string, bom?: BlobPart) { | |
| 12 | urlToBase64(url).then((base64) => { | |
| 13 | downloadByBase64(base64, filename, mime, bom); | |
| 14 | }); | |
| 15 | } | |
| 16 | ||
| 17 | /** | |
| 18 | * Download pictures based on base64 | |
| 19 | * @param buf | |
| 20 | * @param filename | |
| 21 | * @param mime | |
| 22 | * @param bom | |
| 23 | */ | |
| a161bf | 24 | export function downloadByBase64(buf: string, filename: string, mime?: string, bom?: BlobPart) { |
| V | 25 | const base64Buf = dataURLtoBlob(buf); |
| 26 | downloadByData(base64Buf, filename, mime, bom); | |
| 27 | } | |
| 28 | ||
| 2f6253 | 29 | /** |
| a161bf | 30 | * Download according to the background interface file stream |
| 2f6253 | 31 | * @param {*} data |
| 陈 | 32 | * @param {*} filename |
| 33 | * @param {*} mime | |
| 34 | * @param {*} bom | |
| 35 | */ | |
| 36 | export function downloadByData(data: BlobPart, filename: string, mime?: string, bom?: BlobPart) { | |
| 37 | const blobData = typeof bom !== 'undefined' ? [bom, data] : [data]; | |
| 38 | const blob = new Blob(blobData, { type: mime || 'application/octet-stream' }); | |
| a248e2 | 39 | |
| V | 40 | const blobURL = window.URL.createObjectURL(blob); |
| 41 | const tempLink = document.createElement('a'); | |
| 42 | tempLink.style.display = 'none'; | |
| 43 | tempLink.href = blobURL; | |
| 44 | tempLink.setAttribute('download', filename); | |
| 45 | if (typeof tempLink.download === 'undefined') { | |
| 46 | tempLink.setAttribute('target', '_blank'); | |
| 2f6253 | 47 | } |
| a248e2 | 48 | document.body.appendChild(tempLink); |
| V | 49 | tempLink.click(); |
| 50 | document.body.removeChild(tempLink); | |
| 51 | window.URL.revokeObjectURL(blobURL); | |
| 2f6253 | 52 | } |
| db3092 | 53 | |
| 2f6253 | 54 | /** |
| a161bf | 55 | * Download file according to file address |
| 2f6253 | 56 | * @param {*} sUrl |
| 陈 | 57 | */ |
| 58 | export function downloadByUrl({ | |
| 59 | url, | |
| 60 | target = '_blank', | |
| 61 | fileName, | |
| 62 | }: { | |
| 63 | url: string; | |
| 64 | target?: TargetContext; | |
| 65 | fileName?: string; | |
| 66 | }): boolean { | |
| 67 | const isChrome = window.navigator.userAgent.toLowerCase().indexOf('chrome') > -1; | |
| 68 | const isSafari = window.navigator.userAgent.toLowerCase().indexOf('safari') > -1; | |
| 69 | ||
| 70 | if (/(iP)/g.test(window.navigator.userAgent)) { | |
| a161bf | 71 | console.error('Your browser does not support download!'); |
| 2f6253 | 72 | return false; |
| 陈 | 73 | } |
| 74 | if (isChrome || isSafari) { | |
| 75 | const link = document.createElement('a'); | |
| 76 | link.href = url; | |
| 77 | link.target = target; | |
| 78 | ||
| 79 | if (link.download !== undefined) { | |
| 80 | link.download = fileName || url.substring(url.lastIndexOf('/') + 1, url.length); | |
| 81 | } | |
| 82 | ||
| 83 | if (document.createEvent) { | |
| 84 | const e = document.createEvent('MouseEvents'); | |
| 85 | e.initEvent('click', true, true); | |
| 86 | link.dispatchEvent(e); | |
| 87 | return true; | |
| 88 | } | |
| 89 | } | |
| 90 | if (url.indexOf('?') === -1) { | |
| 91 | url += '?download'; | |
| 92 | } | |
| 93 | ||
| ba068b | 94 | openWindow(url, { target }); |
| 2f6253 | 95 | return true; |
| 陈 | 96 | } |
