peter
93192dadd8
The underline named `--color-chosen`, which is resolved once on :root, so it stayed the accent under `media-marks` (seen in the browser: fuchsia on Slate light); it reads `--chosen` where it is used now. An icon button pressed or with its menu open tinted its glyph with the accent; it takes the chosen colour — the accent everywhere but the player chrome, where it is the media amber.
77 lines
3.1 KiB
TypeScript
77 lines
3.1 KiB
TypeScript
// @vitest-environment jsdom
|
|
//
|
|
// The tab rail was a row of `aria-pressed` toggle buttons — every tab a Tab stop, no
|
|
// arrow keys, and nothing tying a tab to the content it shows. It is an ARIA tab list now.
|
|
import { useState } from "react";
|
|
import { afterEach, describe, expect, it } from "vitest";
|
|
import { cleanup, fireEvent, render, screen } from "@testing-library/react";
|
|
import Tabs from "./Tabs";
|
|
import { useTabPanel } from "./tabPanel";
|
|
|
|
afterEach(cleanup);
|
|
|
|
const TABS = [
|
|
{ id: "a", label: "Alpha" },
|
|
{ id: "b", label: "Beta" },
|
|
{ id: "c", label: "Gamma" },
|
|
];
|
|
|
|
function Harness() {
|
|
const [active, setActive] = useState("a");
|
|
const panel = useTabPanel();
|
|
return (
|
|
<>
|
|
<Tabs idBase={panel.idBase} tabs={TABS} active={active} onChange={setActive} label="Pick" />
|
|
<div {...panel.panelProps(active)}>content of {active}</div>
|
|
</>
|
|
);
|
|
}
|
|
|
|
const tab = (name: string) => screen.getByRole("tab", { name });
|
|
|
|
describe("Tabs", () => {
|
|
it("is a tab list with one Tab stop, the selected tab", () => {
|
|
render(<Harness />);
|
|
expect(screen.getByRole("tablist", { name: "Pick" })).toBeTruthy();
|
|
expect(tab("Alpha").getAttribute("aria-selected")).toBe("true");
|
|
expect(tab("Beta").getAttribute("aria-selected")).toBe("false");
|
|
expect(TABS.map((t) => tab(t.label).tabIndex)).toEqual([0, -1, -1]);
|
|
});
|
|
|
|
it("moves and selects with the arrows, and Home/End jump to the ends", () => {
|
|
render(<Harness />);
|
|
tab("Alpha").focus();
|
|
fireEvent.keyDown(document.activeElement!, { key: "ArrowRight" });
|
|
expect(document.activeElement).toBe(tab("Beta"));
|
|
expect(tab("Beta").getAttribute("aria-selected")).toBe("true");
|
|
fireEvent.keyDown(document.activeElement!, { key: "End" });
|
|
expect(document.activeElement).toBe(tab("Gamma"));
|
|
fireEvent.keyDown(document.activeElement!, { key: "ArrowRight" }); // wraps
|
|
expect(document.activeElement).toBe(tab("Alpha"));
|
|
fireEvent.keyDown(document.activeElement!, { key: "ArrowUp" }); // either axis
|
|
expect(document.activeElement).toBe(tab("Gamma"));
|
|
fireEvent.keyDown(document.activeElement!, { key: "Home" });
|
|
expect(tab("Alpha").getAttribute("aria-selected")).toBe("true");
|
|
});
|
|
|
|
it("ties each tab to the panel, and the panel to the selected tab", () => {
|
|
render(<Harness />);
|
|
const panel = screen.getByRole("tabpanel");
|
|
expect(tab("Beta").getAttribute("aria-controls")).toBe(panel.id);
|
|
fireEvent.click(tab("Beta"));
|
|
expect(screen.getByRole("tabpanel", { name: "Beta" })).toBe(panel);
|
|
});
|
|
|
|
it("on the media chrome marks the chosen tab in white with the chosen mark, not the accent's text", () => {
|
|
// A light theme's accent is dark on the always-dark chrome (Slate 2.84:1 as text).
|
|
render(<Tabs tabs={TABS} active="a" onChange={() => {}} label="Pick" tone="media" />);
|
|
const on = tab("Alpha").className;
|
|
expect(on).not.toMatch(/\btext-accent\b/);
|
|
expect(on).toMatch(/\btext-white\b/);
|
|
// The scope's own `--chosen`, read where it is used: `--color-chosen` is resolved once on :root
|
|
// and would stay the accent under `media-marks`.
|
|
expect(on).toMatch(/var\(--chosen,/);
|
|
expect(on).not.toMatch(/--color-chosen/);
|
|
});
|
|
});
|