refactor(web-antd): 修正 Tinyflow 组件中的导入路径
- 将 './ui/typing' 修改为 './ui/typeing'(可能是原代码中的拼写错误) - 将 './ui/typing' 修改为 './ui/index',以符合常见的模块入口文件结构
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98
apps/web-antd/src/utils/download.ts
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98
apps/web-antd/src/utils/download.ts
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const download0 = (data: Blob, fileName: string, mineType: string) => {
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// 创建 blob
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const blob = new Blob([data], { type: mineType });
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// 创建 href 超链接,点击进行下载
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window.URL = window.URL || window.webkitURL;
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const href = URL.createObjectURL(blob);
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const downA = document.createElement('a');
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downA.href = href;
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downA.download = fileName;
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downA.click();
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// 销毁超连接
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window.URL.revokeObjectURL(href);
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};
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export const download = {
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// 下载 Excel 方法
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excel: (data: Blob, fileName: string) => {
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download0(data, fileName, 'application/vnd.ms-excel');
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},
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// 下载 Word 方法
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word: (data: Blob, fileName: string) => {
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download0(data, fileName, 'application/msword');
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},
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// 下载 Zip 方法
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zip: (data: Blob, fileName: string) => {
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download0(data, fileName, 'application/zip');
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},
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// 下载 Html 方法
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html: (data: Blob, fileName: string) => {
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download0(data, fileName, 'text/html');
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},
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// 下载 Markdown 方法
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markdown: (data: Blob, fileName: string) => {
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download0(data, fileName, 'text/markdown');
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},
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// 下载 Json 方法
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json: (data: Blob, fileName: string) => {
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download0(data, fileName, 'application/json');
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},
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// 下载图片(允许跨域)
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image: ({
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url,
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canvasWidth,
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canvasHeight,
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drawWithImageSize = true,
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}: {
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canvasHeight?: number; // 指定画布高度
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canvasWidth?: number; // 指定画布宽度
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drawWithImageSize?: boolean; // 将图片绘制在画布上时带上图片的宽高值, 默认是要带上的
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url: string;
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}) => {
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const image = new Image();
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// image.setAttribute('crossOrigin', 'anonymous')
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image.src = url;
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image.addEventListener('load', () => {
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const canvas = document.createElement('canvas');
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canvas.width = canvasWidth || image.width;
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canvas.height = canvasHeight || image.height;
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const ctx = canvas.getContext('2d') as CanvasRenderingContext2D;
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ctx?.clearRect(0, 0, canvas.width, canvas.height);
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if (drawWithImageSize) {
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ctx.drawImage(image, 0, 0, image.width, image.height);
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} else {
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ctx.drawImage(image, 0, 0);
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}
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const url = canvas.toDataURL('image/png');
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const a = document.createElement('a');
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a.href = url;
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a.download = 'image.png';
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a.click();
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});
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},
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base64ToFile: (base64: any, fileName: string) => {
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// 将base64按照 , 进行分割 将前缀 与后续内容分隔开
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const data = base64.split(',');
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// 利用正则表达式 从前缀中获取图片的类型信息(image/png、image/jpeg、image/webp等)
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const type = data[0].match(/:(.*?);/)[1];
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// 从图片的类型信息中 获取具体的文件格式后缀(png、jpeg、webp)
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const suffix = type.split('/')[1];
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// 使用atob()对base64数据进行解码 结果是一个文件数据流 以字符串的格式输出
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const bstr = window.atob(data[1]);
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// 获取解码结果字符串的长度
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let n = bstr.length;
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// 根据解码结果字符串的长度创建一个等长的整形数字数组
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// 但在创建时 所有元素初始值都为 0
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const u8arr = new Uint8Array(n);
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// 将整形数组的每个元素填充为解码结果字符串对应位置字符的UTF-16 编码单元
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while (n--) {
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// charCodeAt():获取给定索引处字符对应的 UTF-16 代码单元
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u8arr[n] = bstr.charCodeAt(n);
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}
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// 将File文件对象返回给方法的调用者
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return new File([u8arr], `${fileName}.${suffix}`, {
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type,
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});
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},
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};
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