HTMLTableRowElement-impl.js
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"use strict";
const DOMException = require("domexception");
const HTMLElementImpl = require("./HTMLElement-impl").implementation;
const HTMLCollection = require("../generated/HTMLCollection");
const { HTML_NS } = require("../helpers/namespaces");
const { childrenByHTMLLocalNames } = require("../helpers/traversal");
const { domSymbolTree } = require("../helpers/internal-constants");
const cellLocalNames = new Set(["td", "th"]);
class HTMLTableRowElementImpl extends HTMLElementImpl {
get cells() {
if (!this._cells) {
this._cells = HTMLCollection.createImpl([], {
element: this,
query: () => childrenByHTMLLocalNames(this, cellLocalNames)
});
}
return this._cells;
}
get rowIndex() {
const parent = this.parentElement;
if (parent === null || parent.namespaceURI !== HTML_NS) {
return -1;
}
let tableElement = parent;
if (parent.localName === "thead" || parent.localName === "tbody" || parent.localName === "tfoot") {
tableElement = parent.parentElement;
}
if (tableElement === null || tableElement.namespaceURI !== HTML_NS || tableElement.localName !== "table") {
return -1;
}
return tableElement.rows.indexOf(this);
}
get sectionRowIndex() {
const parent = domSymbolTree.parent(this);
if (parent === null) {
return -1;
}
const { rows } = parent;
if (!rows) {
return -1;
}
return rows.indexOf(this);
}
insertCell(index) {
const td = this._ownerDocument.createElement("TD");
const { cells } = this;
if (index < -1 || index > cells.length) {
throw new DOMException("The index is not in the allowed range.", "IndexSizeError");
}
if (index === -1 || index === cells.length) {
this.appendChild(td);
} else {
const ref = cells.item(index);
this.insertBefore(td, ref);
}
return td;
}
deleteCell(index) {
const { cells } = this;
if (index < -1 || index >= cells.length) {
throw new DOMException("The index is not in the allowed range.", "IndexSizeError");
}
if (index === -1) {
if (cells.length === 0) {
return;
}
index = cells.length - 1;
}
const td = cells.item(index);
this.removeChild(td);
}
}
module.exports = {
implementation: HTMLTableRowElementImpl
};