chore(unity-react-core): add Table story

packages/unity-react-core/src/components/Tables/Tables.stories.tsx

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+import React, { useEffect } from "react";
+import { Table } from "./Tables";
+import type { Meta, StoryObj } from '@storybook/react';
+
+const meta: Meta<typeof Table> = {
+  title: "Components/Table",
+  component: Table,
+  decorators: [
+    Story => (
+      <div className="container">
+        <Story />
+      </div>
+    ),
+  ],
+};
+
+export const BasicTable: StoryObj<typeof Table> = {
+  args: {
+    columns: 5,
+    fixed: false
+  }
+};
+
+export const FixedTable: StoryObj<typeof Table> = {
+  args: {
+    columns: 12,
+    fixed: true
+  }
+};
+
+export default meta;

packages/unity-react-core/src/components/Tables/Tables.test.tsx

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+import { render, cleanup, RenderResult } from "@testing-library/react";
+import React from "react";
+import { expect, describe, it, afterEach, beforeEach } from 'vitest';
+import { Table } from "./Tables";
+
+describe("Table Component Tests", () => {
+  let component: RenderResult;
+  const defaultProps = {
+    columns: 5
+  };
+
+  const renderComponent = (props = defaultProps) => {
+    return render(
+      <div className="uds-table" tabIndex={0}>
+        <Table {...props} />
+      </div>
+    );
+  };
+
+  beforeEach(() => {
+    component = renderComponent();
+  });
+
+  afterEach(cleanup);
+
+  it("should render the table component", () => {
+    expect(component).toBeDefined();
+  });
+
+  it("should have correct number of columns", () => {
+    const headerCells = component.container.querySelectorAll('thead th');
+    expect(headerCells.length).toBe(defaultProps.columns + 1);
+  });
+
+  it("should display correct year range", () => {
+    const currentYear = 2024;
+    const headerCells = component.container.querySelectorAll('thead th');
+    const years = Array.from(headerCells)
+      .slice(1)
+      .map(cell => cell.textContent);
+
+    const expectedYears = new Array(defaultProps.columns)
+      .fill(null)
+      .map((_, i) => `Fall ${currentYear - (defaultProps.columns - 1) + i}`);
+
+    expect(years).toEqual(expectedYears);
+  });
+
+  it("should render all campus rows", () => {
+    const campuses = [
+      "Tempe",
+      "Downtown",
+      "Polytechnic",
+      "West",
+      "Thunderbird",
+      "Skysong Campus"
+    ];
+
+    campuses.forEach(campus => {
+      expect(component.getByText(campus)).toBeInTheDocument();
+    });
+  });
+
+  it("should have correct table structure", () => {
+    expect(component.container.querySelector('table')).toBeInTheDocument();
+    expect(component.container.querySelector('thead')).toBeInTheDocument();
+    expect(component.container.querySelector('tbody')).toBeInTheDocument();
+  });
+
+  it("should render example link in first row", () => {
+    const link = component.container.querySelector('a');
+    expect(link).toBeInTheDocument();
+    expect(link?.textContent).toBe('example link');
+  });
+
+  describe("with different column counts", () => {
+    it("should render with minimum columns", () => {
+      const minColumns = 4;
+      const minComponent = renderComponent({ columns: minColumns });
+      const headerCells = minComponent.container.querySelectorAll('thead th');
+      expect(headerCells.length).toBe(minColumns + 1);
+    });
+
+    it("should render with maximum columns", () => {
+      const maxColumns = 14;
+      const maxComponent = renderComponent({ columns: maxColumns });
+      const headerCells = maxComponent.container.querySelectorAll('thead th');
+      expect(headerCells.length).toBe(maxColumns + 1);
+    });
+  });
+
+  describe("data calculation tests", () => {
+    it("should generate numbers for each cell", () => {
+      const firstDataRow = component.container.querySelectorAll('tbody tr')[0];
+      const dataCells = firstDataRow.querySelectorAll('td');
+
+      dataCells.forEach(cell => {
+        expect(cell.textContent).toMatch(/^\d{1,3}(,\d{3})*$/); // Format like 1,234
+      });
+    });
+
+    it("should maintain consistent data structure across rows", () => {
+      const rows = component.container.querySelectorAll('tbody tr');
+      const expectedCellCount = defaultProps.columns + 1; // columns + header cell
+
+      rows.forEach(row => {
+        const cells = row.querySelectorAll('th, td');
+        expect(cells.length).toBe(expectedCellCount);
+      });
+    });
+  });
+
+  describe("accessibility tests", () => {
+    it("should have proper scope attributes on headers", () => {
+      const columnHeaders = component.container.querySelectorAll('thead th');
+      columnHeaders.forEach(header => {
+        expect(header).toHaveAttribute('scope', 'col');
+      });
+
+      const rowHeaders = component.container.querySelectorAll('tbody th');
+      rowHeaders.forEach(header => {
+        expect(header).toHaveAttribute('scope', 'row');
+      });
+    });
+
+    it("should have tabIndex on container", () => {
+      const container = component.container.querySelector('.uds-table');
+      expect(container).toHaveAttribute('tabIndex', '0');
+    });
+  });
+});

packages/unity-react-core/src/components/Tables/Tables.tsx

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+import React, { useEffect } from "react";
+import { initializeFixedTable } from "./fixedTable";
+
+const makingUpFakeNumbers = (a, b, c) =>
+  Math.round(a * (b + c)).toLocaleString("en-US");
+
+interface TableProps {
+  columns: number;
+  fixed?: boolean;
+}
+
+const BaseTable = ({ columns }) => {
+  let year = 2024;
+  const arr = new Array(columns)
+    .fill(null)
+    .map((v, i) => year - i)
+    .reverse();
+  return (
+    <table>
+      <thead>
+        <tr>
+          <th scope="col">Enrollment</th>
+          {arr.map((v, i) => (
+            <th scope="col" key={i}>
+              Fall {v}
+            </th>
+          ))}
+        </tr>
+      </thead>
+      <tbody>
+        <tr>
+          <th scope="row">
+            <p>
+              use of <code>&lt;a&gt;</code> in cells{" "}
+              <a href="#">example link</a>
+            </p>
+            Metropolitan campus population
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 35, i)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row" className="indent">
+            Tempe
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 25, i)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row" className="indent">
+            Downtown
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 7, i)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row" className="indent">
+            Polytechnic
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 1.6, i / 2)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row" className="indent">
+            West
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 0.8, i / 4)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row" className="indent">
+            Thunderbird
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 0.1, i / 10)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row" className="normal">
+            Skysong Campus
+          </th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 5, i / 5)}</td>
+          ))}
+        </tr>
+        <tr>
+          <th scope="row">Total</th>
+          {arr.map((v, i) => (
+            <td key={i}>{makingUpFakeNumbers(v, 50, i)}</td>
+          ))}
+        </tr>
+      </tbody>
+    </table>
+  );
+};
+
+export const Table: React.FC<TableProps> = ({ columns, fixed = false }) => {
+  useEffect(() => {
+    if (fixed) {
+      initializeFixedTable();
+    }
+  }, []);
+
+  if (!fixed) {
+    return (
+      <div className="uds-table" tabIndex={0}>
+        <BaseTable columns={columns} />
+      </div>
+    );
+  }
+  return (
+    <div className="uds-table-fixed-wrapper">
+      <div className="scroll-control previous">
+        <button type="button" className="btn btn-circle btn-circle-alt-gray">
+          <i className="fas fa-chevron-left"></i>
+          <span className="visually-hidden">Previous</span>
+        </button>
+      </div>
+
+      <div className="scroll-control next">
+        <button type="button" className="btn btn-circle btn-circle-alt-gray">
+          <i className="fas fa-chevron-right"></i>
+          <span className="visually-hidden">Next</span>
+        </button>
+      </div>
+
+      <div className="uds-table uds-table-fixed" tabIndex={0}>
+        <BaseTable columns={columns} />
+      </div>
+    </div>
+  );
+};

packages/unity-react-core/src/components/Tables/fixedTable.js

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+function initializeFixedTable() {
+  function setPreButtonPosition() {
+    const wrapperSelector = '.uds-table-fixed-wrapper';
+    const tableSelector = '.uds-table.uds-table-fixed table';
+    const prevScrollSelector = '.scroll-control.previous';
+
+    const wrappers = document.querySelectorAll(wrapperSelector);
+    wrappers.forEach((wrapper, index) => {
+      /** @type {HTMLTableElement} */
+      const table = wrapper.querySelector(tableSelector);
+      table.setAttribute('id', 'uds-table-' + index);
+      /** @type {HTMLTableCellElement} */
+      const firstCol = table.querySelector('tbody tr > *');
+      /** @type {HTMLElement} */
+      const prevButton = wrapper.querySelector(prevScrollSelector);
+      prevButton.style.left = firstCol.offsetWidth + 'px';
+    });
+  }
+
+  function setButtonLiListeners() {
+    const containerSelector = '.uds-table-fixed';
+    const wrapperSelector = '.uds-table-fixed-wrapper';
+    const prevScrollSelector = '.scroll-control.previous';
+    const nextScrollSelector = '.scroll-control.next';
+
+    const wrappers = document.querySelectorAll(wrapperSelector);
+    wrappers.forEach((wrapper, index) => {
+      const container = wrapper.querySelector(containerSelector);
+      const prevButton = wrapper.querySelector(prevScrollSelector);
+      const nextButton = wrapper.querySelector(nextScrollSelector);
+
+      ['click', 'focus'].forEach((eventName) => {
+        prevButton.addEventListener(eventName, function () {
+          /* Scroll can't go beyond it's bounds, it won't go lower than 0 */
+          container.scrollLeft -= 100;
+        });
+
+        nextButton.addEventListener(eventName, function () {
+          container.scrollLeft += 100;
+        });
+      });
+    });
+  }
+
+  function debounce(func, timeout) {
+    let timerId;
+    return (...args) => {
+      clearTimeout(timerId);
+      timerId = setTimeout(() => {
+        func.apply(this, args);
+      }, timeout);
+    };
+  }
+  setPreButtonPosition();
+  setButtonLiListeners();
+  window.addEventListener('resize', function () {
+    debounce(setPreButtonPosition, 100)();
+  });
+};
+
+export { initializeFixedTable };