128 lines
3.0 KiB
TypeScript
128 lines
3.0 KiB
TypeScript
// TODO @芋艿：需要优化下每个方法
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// TODO @芋艿：是不是可以共用么？
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// 后续使用 packages/core/base/shared/src/utils/download.ts 下的方法
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import { dataURLtoBlob, urlToBase64 } from './base64Conver';
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/**
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* Download online pictures
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* @param url
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* @param filename
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* @param mime
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* @param bom
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*/
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export function downloadByOnlineUrl(
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url: string,
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filename: string,
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mime?: string,
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bom?: BlobPart,
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) {
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urlToBase64(url).then((base64) => {
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downloadByBase64(base64, filename, mime, bom);
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});
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}
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/**
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* Download pictures based on base64
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* @param buf
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* @param filename
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* @param mime
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* @param bom
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*/
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export function downloadByBase64(
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buf: string,
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filename: string,
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mime?: string,
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bom?: BlobPart,
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) {
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const base64Buf = dataURLtoBlob(buf);
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downloadByData(base64Buf, filename, mime, bom);
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}
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/**
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* Download according to the background interface file stream
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* @param {*} data
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* @param {*} filename
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* @param {*} mime
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* @param {*} bom
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*/
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export function downloadByData(
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data: BlobPart,
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filename: string,
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mime?: string,
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bom?: BlobPart,
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) {
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const blobData = bom === undefined ? [data] : [bom, data];
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const blob = new Blob(blobData, { type: mime || 'application/octet-stream' });
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const blobURL = window.URL.createObjectURL(blob);
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const tempLink = document.createElement('a');
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tempLink.style.display = 'none';
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tempLink.href = blobURL;
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tempLink.setAttribute('download', filename);
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if (tempLink.download === undefined)
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tempLink.setAttribute('target', '_blank');
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document.body.append(tempLink);
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tempLink.click();
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tempLink.remove();
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window.URL.revokeObjectURL(blobURL);
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}
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/**
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* Download file according to file address
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* @param {*} sUrl
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*/
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export function downloadByUrl({
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url,
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target = '_blank',
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fileName,
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}: {
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fileName?: string;
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target?: '_blank' | '_self';
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url: string;
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}): boolean {
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const isChrome = window.navigator.userAgent.toLowerCase().includes('chrome');
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const isSafari = window.navigator.userAgent.toLowerCase().includes('safari');
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if (/iP/.test(window.navigator.userAgent)) {
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console.error('Your browser does not support download!');
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return false;
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}
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if (isChrome || isSafari) {
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const link = document.createElement('a');
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link.href = url;
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link.target = target;
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if (link.download !== undefined)
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link.download = fileName || url.slice(url.lastIndexOf('/') + 1);
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if (document.createEvent) {
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const e = document.createEvent('MouseEvents');
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e.initEvent('click', true, true);
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link.dispatchEvent(e);
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return true;
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}
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}
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if (!url.includes('?')) url += '?download';
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openWindow(url, { target });
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return true;
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}
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export function openWindow(
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url: string,
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opt?: {
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noopener?: boolean;
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noreferrer?: boolean;
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target?: '_blank' | '_self' | string;
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},
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) {
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const { noopener = true, noreferrer = true, target = '__blank' } = opt || {};
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const feature: string[] = [];
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noopener && feature.push('noopener=yes');
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noreferrer && feature.push('noreferrer=yes');
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window.open(url, target, feature.join(','));
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}
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