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Viewing file:     HTMLTableRowElement-impl.js (2.35 KB)      -rw-r--r--

"use strict";

const DOMException = require("../generated/DOMException");
const HTMLElementImpl = require("./HTMLElement-impl").implementation;
const HTMLCollection = require("../generated/HTMLCollection");
const { HTML_NS } = require("../helpers/namespaces");
const { childrenByLocalNames } = 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(this._globalObject, [], {
        element: this,
        query: () => childrenByLocalNames(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 DOMException.create(this._globalObject, ["The index is not in the allowed range.", "IndexSizeError"]);
    }
    if (index === -1 || index === cells.length) {
      this._append(td);
    } else {
      const ref = cells.item(index);
      this._insert(td, ref);
    }
    return td;
  }

  deleteCell(index) {
    const { cells } = this;
    if (index < -1 || index >= cells.length) {
      throw DOMException.create(this._globalObject, ["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._remove(td);
  }
}

module.exports = {
  implementation: HTMLTableRowElementImpl
};