deckhearth/components/ui/GlassSurface.js
Randall Stillwell 032b86b232 feat(GlassSurface): add cornerLights prop (subtle | chrome | none)
Brief 1 of unify-glass-panel-surfaces convoy. Adds a `cornerLights`
prop to the <GlassSurface> primitive so corner catch-lights compose
into every consumer (<Modal>, <StatCard>, landing feature cards) by
default — no per-consumer migration needed.

API:
  cornerLights: 'subtle' (default) | 'chrome' | 'none'

  'subtle' → 4-layer background using --corner-light-warm-subtle /
              --corner-light-cool-subtle (matches .glass-panel-strong
              post-PR #118; appropriate for most data surfaces).
  'chrome' → same recipe with the full-intensity
              --corner-light-warm / --corner-light-cool tokens
              (matches the Layout sidebar nav-chip and TopSearchBar
              header treatments).
  'none'   → today's pre-Brief-1 behavior. Single-layer background:
              var(--glass-surface-{tint}); no transparent border, no
              corner radials. Escape hatch for GPU-budget-constrained
              tiles that legitimately must skip the gradient-border
              treatment.

Composition recipe (verbatim mirror of styles/globals.css's
.glass-panel-strong block post-PR #118):

  linear-gradient(<fill>, <fill>) padding-box,
  radial-gradient(at 0% 100%, <warm> 0%, transparent 42%) border-box,
  radial-gradient(at 100% 0%, <cool> 0%, transparent 42%) border-box,
  var(--chip-border-base) border-box

Paired with `border: 1px solid transparent` so the border-box
gradients render through the border. For cornerLights='none', the
border declaration is omitted entirely — preserves today's box-model
exactly.

Other props (`tint`, `blur`, `rim`, `elevation`, `as`, `style`,
`className`) and the `...style` LAST-wins merge order are unchanged.

Test additions (test/components/ui-primitives.test.js, +49 lines):
  - cornerLights='subtle' (default): asserts --corner-light-*-subtle
    tokens, padding-box/border-box layers, --chip-border-base, and
    `border: 1px solid transparent` all present in the rendered
    inline style attribute.
  - cornerLights='chrome': asserts the full-intensity tokens
    (NOT the -subtle variants); same border declaration.
  - cornerLights='none': asserts single-layer
    `background: var(--glass-surface-mid)`, no corner-light tokens,
    no padding-box, no --chip-border-base, no border declaration.

Verification:
  - npm run lint passes (1 pre-existing unrelated warning).
  - npm run test:run: 116/116 tests pass (was 113; +3 GlassSurface
    assertions).

Ripple effect (intentional, per architect plan):
  <Modal>, <StatCard>, and the landing-page feature cards all
  delegate to <GlassSurface>. Defaulting to cornerLights='subtle'
  means each of them now renders with corner catch-lights without
  any per-consumer edit. The visual-diff baseline refresh is the
  expected side effect; queue on Linux per AGENTS.md § Testing
  before Brief 3 + Brief 4 dispatch.

Acceptance criteria from
.convoys/unify-glass-panel-surfaces/brief-1-upgrade-glass-surface-primitive.md
all met. No consumer migrations in this PR.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-04 14:16:36 -05:00

78 lines
2.1 KiB
JavaScript

import { forwardRef } from 'react';
const RIM_SHADOWS = {
none: [],
subtle: ['var(--rim-light-inner)', 'var(--rim-light-outer)'],
pronounced: ['var(--rim-light-inner)', 'var(--rim-light-outer)'],
'ember-subtle': ['var(--rim-light-inner)', 'var(--ember-rim-subtle)'],
'ember-pronounced': ['var(--rim-light-inner)', 'var(--ember-rim-pronounced)'],
};
const ELEVATION_SHADOWS = {
flat: [],
ambient: ['var(--elevation-ambient)'],
pronounced: ['var(--elevation-pronounced)'],
};
const CORNER_LIGHT_TOKENS = {
subtle: {
warm: 'var(--corner-light-warm-subtle)',
cool: 'var(--corner-light-cool-subtle)',
},
chrome: {
warm: 'var(--corner-light-warm)',
cool: 'var(--corner-light-cool)',
},
};
function composeBackground(tint, cornerLights) {
const fill = `var(--glass-surface-${tint})`;
if (cornerLights === 'none') {
return fill;
}
const tokens =
CORNER_LIGHT_TOKENS[cornerLights] ?? CORNER_LIGHT_TOKENS.subtle;
return [
`linear-gradient(${fill}, ${fill}) padding-box`,
`radial-gradient(at 0% 100%, ${tokens.warm} 0%, transparent 42%) border-box`,
`radial-gradient(at 100% 0%, ${tokens.cool} 0%, transparent 42%) border-box`,
'var(--chip-border-base) border-box',
].join(', ');
}
const GlassSurface = forwardRef(function GlassSurface(
{
as: As = 'div',
tint = 'mid',
rim = 'subtle',
elevation = 'flat',
blur = 'mid',
cornerLights = 'subtle',
className,
style,
children,
...rest
},
ref
) {
const shadowParts = [
...(RIM_SHADOWS[rim] ?? []),
...(ELEVATION_SHADOWS[elevation] ?? []),
];
const composedStyle = {
background: composeBackground(tint, cornerLights),
backdropFilter: `blur(var(--glass-blur-${blur})) saturate(var(--glass-saturate))`,
WebkitBackdropFilter: `blur(var(--glass-blur-${blur})) saturate(var(--glass-saturate))`,
boxShadow: shadowParts.length > 0 ? shadowParts.join(', ') : undefined,
...(cornerLights !== 'none' ? { border: '1px solid transparent' } : {}),
...style,
};
return (
<As ref={ref} className={className} style={composedStyle} {...rest}>
{children}
</As>
);
});
export default GlassSurface;