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87 lines
2.5 KiB
87 lines
2.5 KiB
1 year ago
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import { openWindow } from '..'
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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(url: string, filename: string, mime?: string, bom?: BlobPart) {
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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(buf: string, filename: string, mime?: string, bom?: BlobPart) {
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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(data: BlobPart, filename: string, mime?: string, bom?: BlobPart) {
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const blobData = typeof bom !== 'undefined' ? [bom, data] : [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 (typeof tempLink.download === 'undefined')
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tempLink.setAttribute('target', '_blank')
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document.body.appendChild(tempLink)
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tempLink.click()
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document.body.removeChild(tempLink)
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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({ url, target = '_blank', fileName }: { url: string, target?: TargetContext, fileName?: string }): 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)/g.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.substring(url.lastIndexOf('/') + 1, url.length)
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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('?'))
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url += '?download'
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openWindow(url, { target })
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return true
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}
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