feat(player): clip mode - mark a range of what is playing and cut it into a download

Both players get a scissors in their control row (Plex: the control row; YouTube: the actions and
the docked bar), `c`, and `[` / `]` to mark at the playhead. The clip panel lives in the player, so
the watched video is the preview: an overview of the whole item and a zoomed strip around the
selection whose ends are sliders (arrows step a tenth, Shift a second), Start / End fields with
nudges and "to the playhead", the length, a looping Play selection, a name, Cut. Escape closes the
panel before the player and the focus goes back to the scissors. A cut is a toast with a Downloads
link plus the usual Ready notification.

- ui/RangeTrack + RulerTicks: the shared, domain-free time track (regions, keyboard-steppable
  handles with a 1.5rem hit area, a playhead, a background slot, over a window of the item). The
  Downloads editor's cuts moved onto it, so they are keyboard-steppable now.
- lib/clipRange holds the marking rules (1 s to 10 min, the server's), lib/timecode the editing
  timecode the editor's private tc/parseTc became.
- keymap: a symbol typed through AltGr answers its bare-symbol row - on the HU layout `[` is
  AltGr+F, which arrives as Ctrl+Alt; letter and Mod rows still never match Ctrl+Alt.
- The YouTube stage sits in a wrapper with the panel, so the maximised stage's blur escape matches
  at any depth.
- media-scope: fields on the always-dark player chrome read white in a light theme too.
This commit is contained in:
2026-10-10 03:58:27 +02:00
parent f221c1962a
commit 50157cc2fd
28 changed files with 2121 additions and 602 deletions
@@ -0,0 +1,157 @@
// @vitest-environment jsdom
//
// The shared time track: a handle is a slider the keyboard steps (and the step stops at its range),
// a drag reports its moves as not-final and its release as final, a press on the bare track seeks,
// and the window decides what is drawn. jsdom lays nothing out, so the track's box is stubbed.
import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
import { cleanup, fireEvent, render, screen } from "@testing-library/react";
import { RangeTrack, RulerTicks, type TrackHandle } from "./RangeTrack";
afterEach(cleanup);
beforeAll(() => {
// jsdom has no PointerEvent: a MouseEvent carries the button and clientX a drag reads.
class PointerEventStub extends MouseEvent {
pointerId: number;
constructor(type: string, init: PointerEventInit = {}) {
super(type, init);
this.pointerId = init.pointerId ?? 1;
}
}
globalThis.PointerEvent ??= PointerEventStub as unknown as typeof PointerEvent;
});
function box(el: Element, left = 0, width = 1000) {
el.getBoundingClientRect = () =>
({
left,
width,
top: 0,
height: 40,
right: left + width,
bottom: 40,
x: left,
y: 0,
}) as DOMRect;
}
function handle(over: Partial<TrackHandle> = {}): TrackHandle {
return {
id: "in",
time: 50,
min: 10,
max: 90,
label: "In",
valueText: "0:50.0",
step: 0.1,
bigStep: 1,
onChange: vi.fn(),
...over,
};
}
describe("RangeTrack", () => {
it("draws a handle as a slider with its time as the value", () => {
render(<RangeTrack duration={100} label="Clip" handles={[handle()]} />);
const s = screen.getByRole("slider", { name: "In" });
expect(s.getAttribute("aria-valuenow")).toBe("50");
expect(s.getAttribute("aria-valuetext")).toBe("0:50.0");
expect(s.style.left).toBe("50%");
});
it("steps a focused handle with the arrows, Shift for the big step, and takes the key", () => {
const h = handle();
render(<RangeTrack duration={100} label="Clip" handles={[h]} />);
const s = screen.getByRole("slider", { name: "In" });
const right = new KeyboardEvent("keydown", {
key: "ArrowRight",
bubbles: true,
cancelable: true,
});
s.dispatchEvent(right);
expect(h.onChange).toHaveBeenLastCalledWith(50.1, true);
expect(right.defaultPrevented).toBe(true);
fireEvent.keyDown(s, { key: "ArrowLeft", shiftKey: true });
expect(h.onChange).toHaveBeenLastCalledWith(49, true);
});
it("stops a step at the handle's range", () => {
const h = handle({ time: 89.95 });
render(<RangeTrack duration={100} label="Clip" handles={[h]} />);
const s = screen.getByRole("slider", { name: "In" });
fireEvent.keyDown(s, { key: "ArrowRight", shiftKey: true });
expect(h.onChange).toHaveBeenLastCalledWith(90, true);
fireEvent.keyDown(s, { key: "Home" });
expect(h.onChange).toHaveBeenLastCalledWith(10, true);
});
it("leaves a modified arrow to the page", () => {
const h = handle();
render(<RangeTrack duration={100} label="Clip" handles={[h]} />);
fireEvent.keyDown(screen.getByRole("slider", { name: "In" }), {
key: "ArrowRight",
ctrlKey: true,
});
expect(h.onChange).not.toHaveBeenCalled();
});
it("reports a drag's moves as not final and its release as final, clamped to the range", () => {
const h = handle();
const onSeek = vi.fn();
render(<RangeTrack duration={100} label="Clip" handles={[h]} onSeek={onSeek} />);
box(screen.getByRole("group", { name: "Clip" }));
const s = screen.getByRole("slider", { name: "In" });
fireEvent.pointerDown(s, { button: 0, clientX: 500, pointerId: 1 });
fireEvent.pointerMove(s, { clientX: 700, pointerId: 1 });
expect(h.onChange).toHaveBeenLastCalledWith(70, false);
fireEvent.pointerUp(s, { clientX: 990, pointerId: 1 });
expect(h.onChange).toHaveBeenLastCalledWith(90, true);
// The handle's press is not a seek of the track under it.
expect(onSeek).not.toHaveBeenCalled();
});
it("seeks on a press of the bare track, following the drag, final on release", () => {
const onSeek = vi.fn();
render(<RangeTrack duration={200} label="Clip" onSeek={onSeek} />);
const track = screen.getByRole("group", { name: "Clip" });
box(track);
fireEvent.pointerDown(track, { button: 0, clientX: 250, pointerId: 1 });
expect(onSeek).toHaveBeenLastCalledWith(50, false);
fireEvent.pointerMove(track, { clientX: 500, pointerId: 1 });
expect(onSeek).toHaveBeenLastCalledWith(100, false);
fireEvent.pointerUp(track, { clientX: 500, pointerId: 1 });
expect(onSeek).toHaveBeenLastCalledWith(100, true);
});
it("maps time through its window, and draws nothing that falls outside it", () => {
const onSeek = vi.fn();
render(
<RangeTrack
duration={3600}
view={{ from: 600, to: 700 }}
label="Zoom"
playhead={50}
onSeek={onSeek}
handles={[
handle({ id: "in", label: "In", time: 650, min: 0, max: 3600 }),
handle({ id: "out", label: "Out", time: 800, min: 0, max: 3600 }),
]}
/>,
);
const track = screen.getByRole("group", { name: "Zoom" });
box(track);
expect(screen.getByRole("slider", { name: "In" }).style.left).toBe("50%");
expect(screen.queryByRole("slider", { name: "Out" })).toBeNull();
expect(screen.queryByTestId("range-playhead")).toBeNull();
fireEvent.pointerDown(track, { button: 0, clientX: 100, pointerId: 1 });
expect(onSeek).toHaveBeenLastCalledWith(610, false);
});
});
describe("RulerTicks", () => {
it("picks a step that keeps the window to a handful of ticks", () => {
const { container } = render(<RulerTicks view={{ from: 0, to: 60 }} format={(t) => `${t}s`} />);
const labels = [...container.querySelectorAll("span")].map((s) => s.textContent);
expect(labels).toEqual(["0s", "10s", "20s", "30s", "40s", "50s", "60s"]);
});
});