import * as React from 'react'; import { cn } from '@/lib/utils'; import { CopyButton } from '~/chrome/ui/copy'; import { hexFor } from '~/chrome/lib/token-values'; import { useMessages } from '../i18n'; /** * The primitive layer, read live from the document. * * Nothing here is hardcoded: every swatch resolves its own custom property with * `getComputedStyle`, so a `figma-sync` run that rewrites `tokens.css` shows up * on this page without anyone editing it. That also makes it honest about the * dark theme — flip the toolbar and the values re-read. * * The hex beside each value is the one exception, and it is not a conversion: * `getComputedStyle` cannot see comments, so `chrome/lib/token-values.ts` reads * `tokens.css` a second time as text to recover the hex the generator recorded * from Figma. See that file for why a converted number would be the wrong one. */ const RAMPS: readonly (readonly [string, readonly (string | number)[]])[] = [ ['neutral', [0, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 950, 1000]], ['brand', [50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 950]], ['secondary', [50, 100, 200, 300, 400, 500, 600, 700, 800, 900]], ['tertiary', [50, 100, 200, 300, 400, 500, 600, 700, 800, 900]], ['red', [50, 100, 200, 300, 400, 500, 600, 700, 800, 900]], ['green', [50, 100, 200, 300, 400, 500, 600, 700, 800, 900]], ['yellow', [50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 'surface', 'ink']], ]; /** The roles theme.css maps on top of the ramps — what components actually use. */ const ROLES = [ 'background', 'foreground', 'card', 'popover', 'primary', 'secondary', 'muted', 'accent', 'destructive', 'border', 'input', 'ring', ] as const; const RADII = ['none', '2xs', 'xs', 'sm', 'md', 'lg', 'xl', '2xl', '3xl', '4xl', 'full'] as const; const SHADOWS = ['xs', 'sm', 'md', 'lg', 'xl'] as const; /** * Motion has no swatch worth drawing — a duration is a number and an easing is a * curve — so it is a table of the live values instead. * * These are the three tokens `eslint.config.js` deliberately exempts from the * "no `--ui-*` in a component" rule, along with `--ui-z-*`: nothing re-maps them * per theme, so unlike a colour they have no semantic layer above them and a * component naming one directly is correct. */ const MOTION = [ '--ui-duration-fast', '--ui-duration-base', '--ui-duration-slow', '--ui-ease-standard', '--ui-ease-emphasized', ] as const; /** * The theme is a class on ``, so that element *is* the external store the * values come from — hence `useSyncExternalStore` rather than an effect that * re-reads into state. */ function subscribeToTheme(onChange: () => void) { const observer = new MutationObserver(onChange); observer.observe(document.documentElement, { attributes: true, attributeFilter: ['class'] }); return () => observer.disconnect(); } function readVar(name: string) { return getComputedStyle(document.documentElement).getPropertyValue(name).trim(); } function useCssValue(name: string) { const read = React.useCallback(() => readVar(name), [name]); return React.useSyncExternalStore(subscribeToTheme, read, () => ''); } /** `var(--ui-color-brand-500)` → `--ui-color-brand-500`, else undefined. */ const directRef = (value: string) => /^var\(\s*(--[a-z0-9-]+)\s*\)$/.exec(value)?.[1]; function Swatch({ variable, label }: { variable: string; label: string }) { const m = useMessages(); const value = useCssValue(variable); /* Recomputed only when the value does — a theme flip moves every role at once, and painting a derived colour touches a canvas. */ const { hex, token, derived } = React.useMemo(() => hexFor(variable, value), [variable, value]); /* The source line is what turns a role from a bare colour back into a decision: `--primary` reads as an oklch triple, and `→ --ui-color-brand-500` is the part worth knowing. Suppressed when it would only repeat what the swatch already says — a ramp step resolving to itself, or a value that literally spells the token out. */ const chained = token && token !== variable && token !== directRef(value); return (
{hex ? (

{label}

{value || '—'}

{chained ? (

→ {token}

) : null} {/* Two things land here: a ramp step the kit interpolated past CBAR's 900, and a role authored with alpha, which no ramp step defines. Neither has a hex in tokens.css because neither came from Figma. */}

{hex ? `${derived ? '≈' : ''}${hex}` : '—'}

); } /** * A whole section as pasteable CSS, hex first with the authored value beside it. * A thunk, so nothing is serialised until the button is pressed — and so the * values are read at click time, which is what makes it follow the theme. */ function sectionCss(variables: readonly string[]) { return () => variables .map((variable) => { const value = readVar(variable); const { hex, derived } = hexFor(variable, value); if (!hex) return `${variable}: ${value};`; return `${variable}: ${hex};${derived ? ' /* interpolated */' : value ? ` /* ${value} */` : ''}`; }) .join('\n'); } function SectionHeading({ title, variables }: { title: string; variables: readonly string[] }) { const m = useMessages(); return (

{title}

); } /** A box wearing one radius or one shadow, with the token's live value under it. */ function ShapeSwatch({ variable, label, style, className, }: { variable: string; label: string; style: React.CSSProperties; className?: string; }) { const value = useCssValue(variable); return (

{label}

{/* Shadows are long two-layer strings; a radius is four characters. One rule for both, and the long one wraps rather than stretching the grid. */}

{value || '—'}

); } function MotionRow({ variable }: { variable: string }) { const value = useCssValue(variable); return ( {variable} {value || '—'} ); } export function TokensPage() { const m = useMessages(); return (

{m.header.foundations}

{m.tokens.title}

{m.tokens.intro}

{m.tokens.hexNote}

`--${role}`)} />
{ROLES.map((role) => ( ))}
{RAMPS.map(([name, steps]) => (
`--ui-color-${name}-${step}`)} />
{steps.map((step) => ( ))}
))}
`--ui-radius-${r}`)} />

{m.tokens.radiusNote}

{RADII.map((r) => ( ))}
`--ui-shadow-${s}`)} />

{m.tokens.elevationNote}

{/* On a tinted surface, with padding around the row. A white card carrying a 5%-alpha shadow is invisible against a white page, which makes the whole section look broken rather than subtle — and the outer padding keeps `xl`'s 25px spread from being clipped. */}
{SHADOWS.map((s) => ( ))}

{m.tokens.motionNote}

{MOTION.map((variable) => ( ))}
{m.tokens.tokenColumn} {m.tokens.valueColumn}

{m.tokens.syncTitle}

{m.tokens.syncNote}

); }