"use strict";
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const idlUtils = require("../generated/utils");
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const { closest } = require("../helpers/traversal");
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const { isDisabled, isSubmittable, isButton, normalizeToCRLF } = require("../helpers/form-controls");
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const Blob = require("../generated/Blob.js");
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const File = require("../generated/File.js");
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const conversions = require("webidl-conversions");
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exports.implementation = class FormDataImpl {
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constructor(args) {
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this._entries = [];
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if (args[0] !== undefined) {
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this._entries = constructTheFormDataSet(args[0]);
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}
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}
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append(name, value, filename) {
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const entry = createAnEntry(name, value, filename);
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this._entries.push(entry);
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}
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delete(name) {
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this._entries = this._entries.filter(entry => entry.name !== name);
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}
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get(name) {
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const foundEntry = this._entries.find(entry => entry.name === name);
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return foundEntry !== undefined ? foundEntry.value : null;
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}
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getAll(name) {
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return this._entries.filter(entry => entry.name === name).map(entry => entry.value);
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}
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has(name) {
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return this._entries.findIndex(entry => entry.name === name) !== -1;
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}
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set(name, value, filename) {
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const entry = createAnEntry(name, value, filename);
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const foundIndex = this._entries.findIndex(e => e.name === name);
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if (foundIndex !== -1) {
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this._entries[foundIndex] = entry;
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this._entries = this._entries.filter((e, i) => e.name !== name || i === foundIndex);
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} else {
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this._entries.push(entry);
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}
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}
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* [Symbol.iterator]() {
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for (const entry of this._entries) {
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yield [entry.name, idlUtils.tryWrapperForImpl(entry.value)];
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}
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}
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};
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function createAnEntry(name, value, filename) {
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const entry = { name };
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// https://github.com/whatwg/xhr/issues/75
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if (Blob.isImpl(value) && !File.isImpl(value)) {
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const oldValue = value;
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value = File.createImpl([
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[],
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"blob",
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{ type: oldValue.type }
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]);
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// "representing the same bytes"
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value._buffer = oldValue._buffer;
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}
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if (File.isImpl(value) && filename !== undefined) {
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const oldValue = value;
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value = File.createImpl([
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[],
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filename,
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// spec makes no mention of `lastModified`; assume it is inherited
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// (Chrome's behavior)
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{ type: oldValue.type, lastModified: oldValue.lastModified }
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]);
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// "representing the same bytes"
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value._buffer = oldValue._buffer;
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}
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entry.value = value;
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return entry;
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}
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function constructTheFormDataSet(form, submitter) {
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// https://html.spec.whatwg.org/multipage/forms.html#constructing-form-data-set
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const controls = form.elements.filter(isSubmittable); // submittable is a subset of listed
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const formDataSet = [];
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for (const fieldWrapper of controls) {
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const field = fieldWrapper;
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if (closest(field, "datalist") !== null) {
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continue;
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}
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if (isDisabled(field)) {
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continue;
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}
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if (isButton(field) && field !== submitter) {
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continue;
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}
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if (field.type === "checkbox" && field._checkedness === false) {
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continue;
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}
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if (field.type === "radio" && field._checkedness === false) {
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continue;
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}
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if (field.type !== "image" && (!field.hasAttribute("name") || field.getAttribute("name") === "")) {
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continue;
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}
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if (field.localName === "object") { // in jsdom, no objects are "using a plugin"
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continue;
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}
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const { type } = field;
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// Omit special processing of <input type="image"> since so far we don't actually ever pass submitter
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const nameAttr = field.getAttribute("name");
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const name = nameAttr === null ? "" : nameAttr;
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if (field.localName === "select") {
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for (const option of field.options) {
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if (option._selectedness === true && !isDisabled(field)) {
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formDataSet.push({ name, value: option.value, type });
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}
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}
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} else if (field.localName === "input" && (type === "checkbox" || type === "radio")) {
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const value = field.hasAttribute("value") ? field.getAttribute("value") : "on";
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formDataSet.push({ name, value, type });
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} else if (type === "file") {
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for (let i = 0; i < field.files.length; ++i) {
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formDataSet.push({ name, value: field.files.item(i), type });
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}
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if (field.files.length === 0) {
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formDataSet.push({ name, value: "", type: "application/octet-stream" });
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}
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} /* skip plugins */ else {
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formDataSet.push({ name, value: field._getValue(), type });
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}
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const dirname = field.getAttribute("dirname");
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if (dirname !== null && dirname !== "") {
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const dir = "ltr"; // jsdom does not (yet?) implement actual directionality
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formDataSet.push({ name: dirname, value: dir, type: "direction" });
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}
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}
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for (const entry of formDataSet) {
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entry.name = conversions.USVString(normalizeToCRLF(entry.name));
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if (entry.type !== "file" && entry.type !== "textarea") {
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entry.value = normalizeToCRLF(entry.value);
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}
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if (entry.type !== "file") {
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entry.value = conversions.USVString(entry.value);
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}
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}
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return formDataSet;
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}
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