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author | Heiner Lohaus <heiner@lohaus.eu> | 2023-10-28 07:21:00 +0200 |
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committer | Heiner Lohaus <heiner@lohaus.eu> | 2023-10-28 07:21:00 +0200 |
commit | dc04ca93060443a3ce6263a476f4dafc66afc6b3 (patch) | |
tree | b9c645cbe897af198ea0551509f901a249af35f2 /g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js | |
parent | Update config supports_message_history (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js b/g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js new file mode 100644 index 00000000..cd36a22f --- /dev/null +++ b/g4f/Provider/npm/node_modules/undici/lib/fileapi/filereader.js @@ -0,0 +1,344 @@ +'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 +} |