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feat: 保存预览图

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奔跑的面条
2022-05-28 11:50:17 +08:00
parent bfe5039a1c
commit fea583eb5b
2 changed files with 18 additions and 7 deletions
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src/utils/file.ts
+4 -4
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@@ -12,11 +12,11 @@ import { Buffer } from "buffer"
/**
* * url转file
*/
export const urlToFile = (fileUrl: string, fileName = new Date().getTime()): File => {
export const urlToFile = (fileUrl: string, fileName = `${new Date().getTime()}`): File => {
const dataArr = fileUrl.split(',')
const mime = (dataArr as any[])[0].match(/:(.*);/)[1]
const originStr = atob(dataArr[1])
return new File([originStr], `${fileName}`, { type: mime })
return new File([originStr], `${fileName}.png`, { type: mime })
}
/**
@@ -39,9 +39,9 @@ export const fileTobase64 = (file: File, callback: Function) => {
* * canvas转file
* @param canvas
*/
export const canvastoFile = (canvas: HTMLCanvasElement) => {
export const canvastoFile = (canvas: HTMLCanvasElement, name?: string) => {
const dataurl = canvas.toDataURL('image/png')
return urlToFile(dataurl)
return urlToFile(dataurl, name)
}
/**