--- /dev/null
+/*
+ * FileSaver.js A saveAs() FileSaver implementation.
+ *
+ * Originally by Eli Grey, adapted as an ESM module by Eduardo San Martin
+ * Morote.
+ *
+ * License : MIT
+ */
+
+import { IS_CLIENT } from '../env'
+
+// The one and only way of getting global scope in all environments
+// https://stackoverflow.com/q/3277182/1008999
+const _global = /*#__PURE__*/ (() =>
+ typeof window === 'object' && window.window === window
+ ? window
+ : typeof self === 'object' && self.self === self
+ ? self
+ : typeof global === 'object' && global.global === global
+ ? global
+ : typeof globalThis === 'object'
+ ? globalThis
+ : { HTMLElement: null })()
+
+export interface Options {
+ autoBom?: boolean
+}
+
+function bom(blob: Blob, { autoBom = false }: Options = {}) {
+ // prepend BOM for UTF-8 XML and text/* types (including HTML)
+ // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
+ if (
+ autoBom &&
+ /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(
+ blob.type
+ )
+ ) {
+ return new Blob([String.fromCharCode(0xfeff), blob], { type: blob.type })
+ }
+ return blob
+}
+
+function download(url: string, name: string, opts?: Options) {
+ const xhr = new XMLHttpRequest()
+ xhr.open('GET', url)
+ xhr.responseType = 'blob'
+ xhr.onload = function () {
+ saveAs(xhr.response, name, opts)
+ }
+ xhr.onerror = function () {
+ console.error('could not download file')
+ }
+ xhr.send()
+}
+
+function corsEnabled(url: string) {
+ const xhr = new XMLHttpRequest()
+ // use sync to avoid popup blocker
+ xhr.open('HEAD', url, false)
+ try {
+ xhr.send()
+ } catch (e) {}
+ return xhr.status >= 200 && xhr.status <= 299
+}
+
+// `a.click()` doesn't work for all browsers (#465)
+function click(node: Element) {
+ try {
+ node.dispatchEvent(new MouseEvent('click'))
+ } catch (e) {
+ const evt = document.createEvent('MouseEvents')
+ evt.initMouseEvent(
+ 'click',
+ true,
+ true,
+ window,
+ 0,
+ 0,
+ 0,
+ 80,
+ 20,
+ false,
+ false,
+ false,
+ false,
+ 0,
+ null
+ )
+ node.dispatchEvent(evt)
+ }
+}
+
+// Detect WebView inside a native macOS app by ruling out all browsers
+// We just need to check for 'Safari' because all other browsers (besides Firefox) include that too
+// https://www.whatismybrowser.com/guides/the-latest-user-agent/macos
+const isMacOSWebView = /*#__PURE__*/ (() =>
+ /Macintosh/.test(navigator.userAgent) &&
+ /AppleWebKit/.test(navigator.userAgent) &&
+ !/Safari/.test(navigator.userAgent))()
+
+export type SaveAs =
+ | ((blob: Blob, name?: string, opts?: Options) => void)
+ | ((
+ blob: Blob,
+ name: string,
+ opts?: Options | undefined,
+ popup?: Window | null | undefined
+ ) => void)
+
+export const saveAs: SaveAs = !IS_CLIENT
+ ? () => {} // noop
+ : // Use download attribute first if possible (#193 Lumia mobile) unless this is a macOS WebView
+ 'download' in HTMLAnchorElement.prototype && !isMacOSWebView
+ ? downloadSaveAs
+ : // Use msSaveOrOpenBlob as a second approach
+ 'msSaveOrOpenBlob' in navigator
+ ? msSaveAs
+ : // Fallback to using FileReader and a popup
+ fileSaverSaveAs
+
+function downloadSaveAs(blob: Blob, name: string = 'download', opts?: Options) {
+ const a = document.createElement('a')
+
+ a.download = name
+ a.rel = 'noopener' // tabnabbing
+
+ // TODO: detect chrome extensions & packaged apps
+ // a.target = '_blank'
+
+ if (typeof blob === 'string') {
+ // Support regular links
+ a.href = blob
+ if (a.origin !== location.origin) {
+ if (corsEnabled(a.href)) {
+ download(blob, name, opts)
+ } else {
+ a.target = '_blank'
+ click(a)
+ }
+ } else {
+ click(a)
+ }
+ } else {
+ // Support blobs
+ a.href = URL.createObjectURL(blob)
+ setTimeout(function () {
+ URL.revokeObjectURL(a.href)
+ }, 4e4) // 40s
+ setTimeout(function () {
+ click(a)
+ }, 0)
+ }
+}
+
+function msSaveAs(blob: Blob, name: string = 'download', opts?: Options) {
+ if (typeof blob === 'string') {
+ if (corsEnabled(blob)) {
+ download(blob, name, opts)
+ } else {
+ const a = document.createElement('a')
+ a.href = blob
+ a.target = '_blank'
+ setTimeout(function () {
+ click(a)
+ })
+ }
+ } else {
+ navigator.msSaveOrOpenBlob(bom(blob, opts), name)
+ }
+}
+
+function fileSaverSaveAs(
+ blob: Blob,
+ name: string,
+ opts?: Options,
+ popup?: Window | null
+) {
+ // Open a popup immediately do go around popup blocker
+ // Mostly only available on user interaction and the fileReader is async so...
+ popup = popup || open('', '_blank')
+ if (popup) {
+ popup.document.title = popup.document.body.innerText = 'downloading...'
+ }
+
+ if (typeof blob === 'string') return download(blob, name, opts)
+
+ const force = blob.type === 'application/octet-stream'
+ const isSafari =
+ /constructor/i.test(String(_global.HTMLElement)) || 'safari' in _global
+ const isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent)
+
+ if (
+ (isChromeIOS || (force && isSafari) || isMacOSWebView) &&
+ typeof FileReader !== 'undefined'
+ ) {
+ // Safari doesn't allow downloading of blob URLs
+ const reader = new FileReader()
+ reader.onloadend = function () {
+ let url = reader.result
+ if (typeof url !== 'string') {
+ popup = null
+ throw new Error('Wrong reader.result type')
+ }
+ url = isChromeIOS
+ ? url
+ : url.replace(/^data:[^;]*;/, 'data:attachment/file;')
+ if (popup) {
+ popup.location.href = url
+ } else {
+ location.assign(url)
+ }
+ popup = null // reverse-tabnabbing #460
+ }
+ reader.readAsDataURL(blob)
+ } else {
+ const url = URL.createObjectURL(blob)
+ if (popup) popup.location.assign(url)
+ else location.href = url
+ popup = null // reverse-tabnabbing #460
+ setTimeout(function () {
+ URL.revokeObjectURL(url)
+ }, 4e4) // 40s
+ }
+}
projects / thirdparty / vuejs / pinia.git / commitdiff
