Code Window
macOS-style window chrome for wrapping editor, terminal, or code-preview content: a bordered `bg-card` box plus an optional title bar with the three traffic-light dots, a centred monospace filename, and an actions slot.
Preview
Rendered from the story the storybook (a11y) CI gate runs axe against — the preview can't show something that hasn't been verified.
Install
Two equivalent paths — the URL works in any shadcn-CLI setup; the alias works once you've registered @interlace in your components.json.
npx shadcn@latest add https://ds.interlace.tools/r/code-window.jsonnpx shadcn@latest add @interlace/code-windowBehavior
What this component does — the keyboard path, the measured colour, the text equivalent and the states it can be in. Every figure below is read out of the test or the source that enforces it by scripts/build-behavior-map.mjs, so nothing here can outlive the gate that keeps it true.
Measured contrast
packages/ui/__tests__/theme-contract-lock.test.ts ↗Every semantic colour pair this component's own source uses, measured against the shipped hexes in all 4 theme × scheme combinations. The tightest is muted-foreground on muted at 7.34:1 (harbor · light), against a floor of 4.5:1.
| Pair | interlacelight | interlacedark | harborlight | harbordark | Floor |
|---|---|---|---|---|---|
| muted-foreground on mutedcopy on a muted surface | 8.81:1 | 10.48:1 | 7.34:1 | 8.64:1 | 4.5:1SC 1.4.3 |
| muted-foreground on backgroundsecondary copy | 9.41:1 | 11.32:1 | 7.82:1 | 9.52:1 | 4.5:1SC 1.4.3 |
| muted-foreground on cardsecondary copy in a card | 9.41:1 | 10.48:1 | 8.25:1 | 8.64:1 | 4.5:1SC 1.4.3 |
Text pairs are held to 4.5:1 (WCAG 2.2 SC 1.4.3); borders, rings and chart axes to 3:1 (SC 1.4.11 non-text). Bold is the worst cell in the row — the one a brand fork has to keep an eye on.
Runtime contract
packages/ui/vitest.config.ts ↗Where it renders, how narrow it survives, and whether its lines are inside the coverage gate — three answers a consumer needs before the paste, not after the bug.
- Render boundary
'use client'Hydrates. It brings JavaScript to any route that imports it — put the boundary here, not at the page.
- Minimum viewport
none declaredNo width floor: it takes the width it is given. Its container owns the layout question.
- Coverage gate
not in the gateThe 100% gate currently covers
src/charts/**/*.{ts,tsx}andsrc/lib/**/*.{ts,tsx}andsrc/primitives/{button-variants,data-state-model,meter-scale,skeleton-variants}.tsandsrc/primitives/{alert,aspect-ratio,avatar,badge,box,breadcrumb,button,callout,card,checkbox,container,data-state,focus-ring,grade-badge,grid,input,label,meter,pagination,published-date,reading-time,section,section-boundary,separator,skip-link,stack,stat-strip,tag,textarea,typography,visually-hidden}.tsx. This file is outside it — the glob widens in phase 7.2.
History
This component is at v1.2.0, first shipped in @interlace/ui 1.0.0. The version is stamped as a banner into the file the install writes, so the copy in your tree says which one you have — compare it with the number above before deciding whether to re-run the install.
@interlace/ui 1.1.01 entry
- Changedpatch
The fourteen
blocks/*re-export aliases now name the release they disappear in. They previously said "removal scheduled for one release cycle after the architecture PR lands", which is not a date anyone can plan around — so the aliases were, in practice, permanent. They are now@deprecated since 1.0.0 — removed in 2.0.0, and removal will land as a breaking change with a migration note.Components
Import
2 named exports — pull the parts you need.
import { CodeWindow, CodeWindowTitleBar } from '@/components/ui/patterns/code-window';Anatomy
Extracted from the primitive's JSDoc header. The source is the only documentation that can't drift.
CodeWindow (div — data-slot="code-window")
├─ CodeWindowTitleBar (div — data-slot="code-window-title-bar")
│ ├─ span aria-hidden (data-slot="code-window-traffic-lights")
│ │ └─ 3 × span size-3 (bg-window-control-close/-minimize/-zoom)
│ ├─ span (title — centred, font-mono text-xs)
│ └─ span (actions — ml-auto)
└─ children (the body: editor, <pre>, anything)API reference
Parsed from the type declarations in the source — the same file the install writes into your tree, so this table can't drift from the component you get.
CodeWindowTitleBarProps
Also accepts every <div> attribute.
| Prop | Type | Description |
|---|---|---|
| title | React.ReactNode | Optional title to display in the bar (typically a filename or rule id). If omitted, the bar renders just the traffic-light dots — leaner for cases where a separate header already names the content. Typed as `ReactNode` (not the native HTML `title` attribute) so callers can pass JSX such as a styled filename. |
| actions | React.ReactNode | Optional trailing slot (right-aligned). Useful for a "copy" button or a status indicator. Renders inside the title-bar row. |
Accessibility
Every story for this component is rendered headlessly and checked with axe-core (wcag2aa, wcag22aa, best-practice, ACT) on every PR. That gate has no continue-on-error, so what ships has zero known violations.
What follows is what static analysis can see. Axe cannot press a key and never sees an overlay open, so the operable-without-a-mouse claim lives in Behavior instead, where the keyboard path is replayed step by step.
- Focus + keyboard behaviour
- Native element semantics — no interaction layer to get wrong.
- Focus ring (WCAG 2.2 SC 2.4.13)
- Not focusable — no focus indicator required.
- Reduced motion
- No animation to gate.
- ARIA in the source
- None — semantics come from the element or the Base UI primitive rather than hand-written ARIA.
Examples
3 more states from the same story file.
R-rule compliance
Every primitive in @interlace/ui models to the portable 26-rule floor enforced by the componentApi ESLint preset. The cells below pin exactly where each rule applies in this file.
| Rule | Concept | Where |
|---|---|---|
| R4 | Extends native el | `React.ComponentProps<'div'>` on both parts |
| R6 | data-slot per part | `code-window` / `-title-bar` / `-traffic-lights` |
| R7 | className merged + ...rest | `cn(BASE, className)` + `{...props}` |
| R10 | Composition seams | `title` and `actions` are `ReactNode`, not strings |
| R18 | Tailwind only | zero inline `style` |
| R19 | Tokens only | dots use `--window-control-*`, not the macOS hex literals |
| R25 | Client directive | `'use client'` is declared although neither part uses a hook |
Dependencies
- Base UI primitive
- Native / no Base UI dependency
- Lucide icons
- none
- NPM dependencies
- none
- Registry dependencies
Source
The full implementation — components/ui/patterns/code-window.tsx once installed.
'use client';
import * as React from 'react';
// @interlace/code-window v1.2.0 — Interlace design system.
// Docs, props and live preview: https://ds.interlace.tools/c/code-window
// What changed since: https://ds.interlace.tools/c/code-window#history
// Generated banner — keep it, the upgrade diff reads this version.
/**
* @interlace/ui — CodeWindow + CodeWindowTitleBar
*
* macOS-style window chrome for wrapping editor, terminal, or code-preview
* content: a bordered `bg-card` box plus an optional title bar with the three
* traffic-light dots, a centred monospace filename, and an actions slot.
*
* It is chrome only — it renders whatever you nest inside it and has no
* opinion about the content.
*
* Modeled on MagicUI's `Terminal` chrome (the dots + bar layout convention)
…122 more lines…Registry JSON
The raw registry record — what the shadcn CLI fetches.