feat(popover): fullscreen-aware portal + migrate the hover surfaces (R8 S4a)

The platform's FloatingPortal targeted <body>, which is painted UNDERNEATH whatever
holds the fullscreen lock. That is why the player's in-bar menus were either
non-portaled (and clipped) or, for add-to-playlist / download, disabled outright in
fullscreen. PopoverSurface now portals into `document.fullscreenElement` while one
exists, via a new reactive `useFullscreenElement()` on the existing WebKit-aware
fullscreen lib.

Two floating-ui details this had to work around: a null `root` means "the container
does not exist yet" (no portal node is created at all), so the no-fullscreen case must
pass undefined; and the portal node is built once and ignores a later root change, so
the portal is keyed on the fullscreen state to remount on a transition.

Migrated the three hand-rolled hover engines onto the platform:
- Tooltip: kept as a passive caption via a new `passthrough` prop on PopoverSurface,
  so it cannot swallow a click aimed at a control it overlaps during the close delay.
  Gains aria-describedby wiring it never had.
- AboutCell: the 160 ms hide-timer hover bridge is now safePolygon; the close-on-page-
  scroll is now hide-and-follow, so the card reappears when the row scrolls back.
- TagManager: same bridge removal; the scroll-fade moves to an inner scroller so the
  mask rides the scrolling box rather than the glass panel.

Verified in-browser: tooltip flip + centering + pointer-transparency, About card flip-
above with the measured height, tag popover right-start anchoring, and the portal
round-trip body -> fullscreen element -> body on a live fullscreenchange.
This commit is contained in:
2026-07-30 23:49:29 +02:00
parent 7ed98956cc
commit 2756c21dbd
5 changed files with 137 additions and 227 deletions
+27 -73
View File
@@ -1,16 +1,13 @@
import { useLayoutEffect, useRef, useState, useSyncExternalStore } from "react";
import { createPortal } from "react-dom";
import { useState, useSyncExternalStore } from "react";
import { PopoverSurface, useAnchoredPopover } from "./AnchoredPopover";
import { hintsEnabled, subscribeHints } from "../lib/hints";
type Side = "top" | "bottom";
type Coords = { left: number; top: number; placement: Side };
const MARGIN = 8;
const MAX_HALF = 120; // half of the tooltip's max-w-[240px] — the widest it can get
/** Wrap any element to show a short glass hint caption on hover — but only while the
* app-wide hints toggle (Settings → Appearance) is on. Rendered in a portal with
* fixed positioning so it is never clipped by an overflow/stacking ancestor. */
* app-wide hints toggle (Settings → Appearance) is on. Anchored by the R8 popover platform, so it
* is never clipped by an overflow/stacking ancestor, flips when the preferred side runs out of room
* and slides back inside the viewport near an edge. */
export default function Tooltip({
hint,
side = "top",
@@ -21,74 +18,31 @@ export default function Tooltip({
children: React.ReactNode;
}) {
const enabled = useSyncExternalStore(subscribeHints, hintsEnabled, hintsEnabled);
const ref = useRef<HTMLSpanElement>(null);
const tipRef = useRef<HTMLDivElement>(null);
const [coords, setCoords] = useState<Coords | null>(null);
function show() {
const el = ref.current;
if (!el) return;
const r = el.getBoundingClientRect();
// Prefer the requested side; flip to bottom if there's no room above.
const placement: Side = side === "bottom" || r.top < 90 ? "bottom" : "top";
const center = r.left + r.width / 2;
// Clamp using the MAX half-width so the caption can never overflow the viewport, even on the
// first paint (before we know its real width). A left-edge anchor near x=0 would otherwise push
// the centered box off-screen. The layout effect below refines this to the actual width.
setCoords({
left: Math.min(Math.max(center, MAX_HALF + MARGIN), window.innerWidth - MAX_HALF - MARGIN),
top: placement === "top" ? r.top - 8 : r.bottom + 8,
placement,
});
}
function hide() {
setCoords(null);
}
// Once rendered, re-center on the anchor using the caption's ACTUAL width (a short hint doesn't
// need the full 240px reservation), still clamped inside the viewport.
useLayoutEffect(() => {
const tip = tipRef.current;
const el = ref.current;
if (!coords || !tip || !el) return;
const r = el.getBoundingClientRect();
const half = tip.offsetWidth / 2;
const left = Math.min(
Math.max(r.left + r.width / 2, half + MARGIN),
window.innerWidth - half - MARGIN,
);
if (Math.abs(left - coords.left) > 0.5) setCoords((c) => (c ? { ...c, left } : c));
}, [coords]);
const [open, setOpen] = useState(false);
const pop = useAnchoredPopover({
open: open && enabled && !!hint,
onOpenChange: setOpen,
mode: "hover",
placement: side,
offset: 8,
});
if (!enabled || !hint) return <>{children}</>;
return (
<span
ref={ref}
onMouseEnter={show}
onMouseLeave={hide}
onFocus={show}
onBlur={hide}
className="inline-flex"
>
{children}
{coords &&
createPortal(
<div
ref={tipRef}
role="tooltip"
style={{
position: "fixed",
left: coords.left,
top: coords.top,
transform: `translateX(-50%) translateY(${coords.placement === "top" ? "-100%" : "0"})`,
}}
className="glass pointer-events-none z-tooltip w-max max-w-[240px] px-2.5 py-1.5 rounded-lg text-xs leading-snug text-fg font-normal normal-case tracking-normal animate-[fadeIn_0.12s_ease]"
>
{hint}
</div>,
document.body,
)}
</span>
<>
<span ref={pop.refs.setReference} {...pop.getReferenceProps()} className="inline-flex">
{children}
</span>
{/* Passive caption: it must not swallow a click aimed at a neighbouring control that it
overlaps while the hover-close delay runs out. */}
<PopoverSurface
popover={pop}
passthrough
className="glass w-max max-w-[240px] px-2.5 py-1.5 rounded-lg text-xs leading-snug text-fg font-normal normal-case tracking-normal animate-[fadeIn_0.12s_ease]"
>
{hint}
</PopoverSurface>
</>
);
}