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-rw-r--r--node_modules/undici/lib/fileapi/filereader.js344
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diff --git a/node_modules/undici/lib/fileapi/filereader.js b/node_modules/undici/lib/fileapi/filereader.js
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+++ b/node_modules/undici/lib/fileapi/filereader.js
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+'use strict'
+
+const {
+ staticPropertyDescriptors,
+ readOperation,
+ fireAProgressEvent
+} = require('./util')
+const {
+ kState,
+ kError,
+ kResult,
+ kEvents,
+ kAborted
+} = require('./symbols')
+const { webidl } = require('../fetch/webidl')
+const { kEnumerableProperty } = require('../core/util')
+
+class FileReader extends EventTarget {
+ constructor () {
+ super()
+
+ this[kState] = 'empty'
+ this[kResult] = null
+ this[kError] = null
+ this[kEvents] = {
+ loadend: null,
+ error: null,
+ abort: null,
+ load: null,
+ progress: null,
+ loadstart: null
+ }
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#dfn-readAsArrayBuffer
+ * @param {import('buffer').Blob} blob
+ */
+ readAsArrayBuffer (blob) {
+ webidl.brandCheck(this, FileReader)
+
+ webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsArrayBuffer' })
+
+ blob = webidl.converters.Blob(blob, { strict: false })
+
+ // The readAsArrayBuffer(blob) method, when invoked,
+ // must initiate a read operation for blob with ArrayBuffer.
+ readOperation(this, blob, 'ArrayBuffer')
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#readAsBinaryString
+ * @param {import('buffer').Blob} blob
+ */
+ readAsBinaryString (blob) {
+ webidl.brandCheck(this, FileReader)
+
+ webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsBinaryString' })
+
+ blob = webidl.converters.Blob(blob, { strict: false })
+
+ // The readAsBinaryString(blob) method, when invoked,
+ // must initiate a read operation for blob with BinaryString.
+ readOperation(this, blob, 'BinaryString')
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#readAsDataText
+ * @param {import('buffer').Blob} blob
+ * @param {string?} encoding
+ */
+ readAsText (blob, encoding = undefined) {
+ webidl.brandCheck(this, FileReader)
+
+ webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsText' })
+
+ blob = webidl.converters.Blob(blob, { strict: false })
+
+ if (encoding !== undefined) {
+ encoding = webidl.converters.DOMString(encoding)
+ }
+
+ // The readAsText(blob, encoding) method, when invoked,
+ // must initiate a read operation for blob with Text and encoding.
+ readOperation(this, blob, 'Text', encoding)
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#dfn-readAsDataURL
+ * @param {import('buffer').Blob} blob
+ */
+ readAsDataURL (blob) {
+ webidl.brandCheck(this, FileReader)
+
+ webidl.argumentLengthCheck(arguments, 1, { header: 'FileReader.readAsDataURL' })
+
+ blob = webidl.converters.Blob(blob, { strict: false })
+
+ // The readAsDataURL(blob) method, when invoked, must
+ // initiate a read operation for blob with DataURL.
+ readOperation(this, blob, 'DataURL')
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#dfn-abort
+ */
+ abort () {
+ // 1. If this's state is "empty" or if this's state is
+ // "done" set this's result to null and terminate
+ // this algorithm.
+ if (this[kState] === 'empty' || this[kState] === 'done') {
+ this[kResult] = null
+ return
+ }
+
+ // 2. If this's state is "loading" set this's state to
+ // "done" and set this's result to null.
+ if (this[kState] === 'loading') {
+ this[kState] = 'done'
+ this[kResult] = null
+ }
+
+ // 3. If there are any tasks from this on the file reading
+ // task source in an affiliated task queue, then remove
+ // those tasks from that task queue.
+ this[kAborted] = true
+
+ // 4. Terminate the algorithm for the read method being processed.
+ // TODO
+
+ // 5. Fire a progress event called abort at this.
+ fireAProgressEvent('abort', this)
+
+ // 6. If this's state is not "loading", fire a progress
+ // event called loadend at this.
+ if (this[kState] !== 'loading') {
+ fireAProgressEvent('loadend', this)
+ }
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#dom-filereader-readystate
+ */
+ get readyState () {
+ webidl.brandCheck(this, FileReader)
+
+ switch (this[kState]) {
+ case 'empty': return this.EMPTY
+ case 'loading': return this.LOADING
+ case 'done': return this.DONE
+ }
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#dom-filereader-result
+ */
+ get result () {
+ webidl.brandCheck(this, FileReader)
+
+ // The result attribute’s getter, when invoked, must return
+ // this's result.
+ return this[kResult]
+ }
+
+ /**
+ * @see https://w3c.github.io/FileAPI/#dom-filereader-error
+ */
+ get error () {
+ webidl.brandCheck(this, FileReader)
+
+ // The error attribute’s getter, when invoked, must return
+ // this's error.
+ return this[kError]
+ }
+
+ get onloadend () {
+ webidl.brandCheck(this, FileReader)
+
+ return this[kEvents].loadend
+ }
+
+ set onloadend (fn) {
+ webidl.brandCheck(this, FileReader)
+
+ if (this[kEvents].loadend) {
+ this.removeEventListener('loadend', this[kEvents].loadend)
+ }
+
+ if (typeof fn === 'function') {
+ this[kEvents].loadend = fn
+ this.addEventListener('loadend', fn)
+ } else {
+ this[kEvents].loadend = null
+ }
+ }
+
+ get onerror () {
+ webidl.brandCheck(this, FileReader)
+
+ return this[kEvents].error
+ }
+
+ set onerror (fn) {
+ webidl.brandCheck(this, FileReader)
+
+ if (this[kEvents].error) {
+ this.removeEventListener('error', this[kEvents].error)
+ }
+
+ if (typeof fn === 'function') {
+ this[kEvents].error = fn
+ this.addEventListener('error', fn)
+ } else {
+ this[kEvents].error = null
+ }
+ }
+
+ get onloadstart () {
+ webidl.brandCheck(this, FileReader)
+
+ return this[kEvents].loadstart
+ }
+
+ set onloadstart (fn) {
+ webidl.brandCheck(this, FileReader)
+
+ if (this[kEvents].loadstart) {
+ this.removeEventListener('loadstart', this[kEvents].loadstart)
+ }
+
+ if (typeof fn === 'function') {
+ this[kEvents].loadstart = fn
+ this.addEventListener('loadstart', fn)
+ } else {
+ this[kEvents].loadstart = null
+ }
+ }
+
+ get onprogress () {
+ webidl.brandCheck(this, FileReader)
+
+ return this[kEvents].progress
+ }
+
+ set onprogress (fn) {
+ webidl.brandCheck(this, FileReader)
+
+ if (this[kEvents].progress) {
+ this.removeEventListener('progress', this[kEvents].progress)
+ }
+
+ if (typeof fn === 'function') {
+ this[kEvents].progress = fn
+ this.addEventListener('progress', fn)
+ } else {
+ this[kEvents].progress = null
+ }
+ }
+
+ get onload () {
+ webidl.brandCheck(this, FileReader)
+
+ return this[kEvents].load
+ }
+
+ set onload (fn) {
+ webidl.brandCheck(this, FileReader)
+
+ if (this[kEvents].load) {
+ this.removeEventListener('load', this[kEvents].load)
+ }
+
+ if (typeof fn === 'function') {
+ this[kEvents].load = fn
+ this.addEventListener('load', fn)
+ } else {
+ this[kEvents].load = null
+ }
+ }
+
+ get onabort () {
+ webidl.brandCheck(this, FileReader)
+
+ return this[kEvents].abort
+ }
+
+ set onabort (fn) {
+ webidl.brandCheck(this, FileReader)
+
+ if (this[kEvents].abort) {
+ this.removeEventListener('abort', this[kEvents].abort)
+ }
+
+ if (typeof fn === 'function') {
+ this[kEvents].abort = fn
+ this.addEventListener('abort', fn)
+ } else {
+ this[kEvents].abort = null
+ }
+ }
+}
+
+// https://w3c.github.io/FileAPI/#dom-filereader-empty
+FileReader.EMPTY = FileReader.prototype.EMPTY = 0
+// https://w3c.github.io/FileAPI/#dom-filereader-loading
+FileReader.LOADING = FileReader.prototype.LOADING = 1
+// https://w3c.github.io/FileAPI/#dom-filereader-done
+FileReader.DONE = FileReader.prototype.DONE = 2
+
+Object.defineProperties(FileReader.prototype, {
+ EMPTY: staticPropertyDescriptors,
+ LOADING: staticPropertyDescriptors,
+ DONE: staticPropertyDescriptors,
+ readAsArrayBuffer: kEnumerableProperty,
+ readAsBinaryString: kEnumerableProperty,
+ readAsText: kEnumerableProperty,
+ readAsDataURL: kEnumerableProperty,
+ abort: kEnumerableProperty,
+ readyState: kEnumerableProperty,
+ result: kEnumerableProperty,
+ error: kEnumerableProperty,
+ onloadstart: kEnumerableProperty,
+ onprogress: kEnumerableProperty,
+ onload: kEnumerableProperty,
+ onabort: kEnumerableProperty,
+ onerror: kEnumerableProperty,
+ onloadend: kEnumerableProperty,
+ [Symbol.toStringTag]: {
+ value: 'FileReader',
+ writable: false,
+ enumerable: false,
+ configurable: true
+ }
+})
+
+Object.defineProperties(FileReader, {
+ EMPTY: staticPropertyDescriptors,
+ LOADING: staticPropertyDescriptors,
+ DONE: staticPropertyDescriptors
+})
+
+module.exports = {
+ FileReader
+}