# CodeField

> An editable, syntax-highlighted code textarea. Forms with the wiring documented, not guessed. Catalog id code-field.

Language: en
Canonical: https://texuli.com/component-pages/code-field/
Markdown: https://texuli.com/component-pages/code-field.md (this page). Every texuli.com page has a Markdown twin at its URL plus `.md` (the home page is https://texuli.com/index.md), and any page URL answers `Accept: text/markdown` with its twin instead of HTML.
Last Updated: 2026-11-13

---

[Components](https://texuli.com/component-pages/) CodeField

forms @texuli/blocks not agent-emittable app

`code-field`

An editable, syntax-highlighted code textarea.

**Forms with the wiring documented, not guessed.** Form controls take labels, descriptions and error text through props, and their keyboard and screen-reader behavior is documented in the accessibility notes below — generated from the manifest, not hand-maintained. The repository’s behavior suite holds the underlying patterns on Chromium, WebKit and a Pixel 7.

## Live examples

### SQL

### SQL

Loading demo…

## In your theme

This page renders in the site theme, `enterprise-neutral`. Every one of the **210** library themes re-colors every component through the `--tx-*` contract. The three below carry real token values from the library, rendered at build — no island, no extra requests.

- Violetlight mode · AA contrast`background`
- `surface`
- `primary`
- `accent`
- `border`

[Open Theme Studio](https://texuli.com/theme-studio/)
- Monochromelight mode · AA contrast`background`
- `surface`
- `primary`
- `accent`
- `border`

[Open Theme Studio](https://texuli.com/theme-studio/)
- Accessible Dark Contrastdark mode · AAA contrast`background`
- `surface`
- `primary`
- `accent`
- `border`

[Open Theme Studio](https://texuli.com/theme-studio/)

## Props

Public props for CodeField

| Name | Kind | Required | Default | Description |
| --- | --- | --- | --- | --- |
| `value` | `string` | no | — | — |
| `language` | `string` | no | — | ts, python, yml… |
| `label` | `string` | no | — | — |
| `labels` | `object` | no | — | — |
| `placeholder` | `string` | no | — | — |
| `name` | `string` | no | — | — |
| `readonly` | `boolean` | no | `false` | — |
| `disabled` | `boolean` | no | `false` | — |
| `rows` | `number` | no | `4` | — |
| `wrap` | `boolean` | no | `false` | — |
| `tabSize` | `number` | no | `2` | — |
| `indentWith` | `enum` (spaces, tab) | no | `"spaces"` | — |
| `lineNumbers` | `boolean` | no | `false` | — |
| `highlightLimit` | `number` | no | — | — |
| `showKeyboardHint` | `boolean` | no | `false` | — |
| `onValueChange` | `event` | no | — | — |
| `class` | `string` | no | — | — |

## Keyboard

Keyboard behavior for CodeField

| Key | Action |
| --- | --- |
| `A, Tab, Escape` | A real textarea; Tab indents, Escape then Tab leaves. |

## Accessibility

- A real textarea; Tab indents, Escape then Tab leaves.

## Evidence for code-field

Latest committed gates for `code-field` (as of 2026-10-23). Static snapshot — not live CI.

### Behavior

n/a no behavior scenario

No dedicated behavior scenario for this catalog id (a styled or display surface, covered by its unit and axe tests).

### Size (gzip)

`@texuli/blocks/code-field · budget 20.0 KiB`

Budget from texuli.budgets.json; re-measure with `pnpm size --filter <entry>`.

### Axe

documented

- `tests/e2e/site-component-pages.spec.ts`
- `docs/quality (a11y-*)`

Site component pages axe gate; package-level a11y docs under docs/quality when present.

### Browsers

- `chromium`
- `webkit`
- `mobile`

Playwright projects: Desktop Chrome, Desktop Safari, Pixel 7. Firefox is a known gap on this host.

## When to use

### Use when

- Edit a snippet or query

### Don’t use when

Prefer another component

- Read-only code (use blocks-code)

## For agents

The live preview, prop editor and copyable code run in the browser. The component manifest holds the same props, events, examples and guidance as data. The live parts run in the browser and are not in this Markdown; the operations below do the same work through the read-only MCP server at https://texuli.com/mcp (no sign-in; see https://texuli.com/auth.md).

MCP operations ([reference](https://github.com/DailybotHQ/texuli/blob/main/packages/tools/docs/ops.md#operations)):

- `component.get`: Read a component manifest with `{"id":"code-field"}`.
- `example.search`: Find component examples.
- `catalog.search`: Search the component catalog.

Docs:

- [code-field component doc (Markdown)](https://texuli.com/llms/components/code-field.md)
- [Component docs for agents (llms.txt)](https://texuli.com/llms/llms.txt)
- [Catalog manifest snapshot (JSON)](https://texuli.com/catalog/catalog.json)
- [texuli README](https://github.com/DailybotHQ/texuli/blob/main/packages/texuli/README.md)
- [@texuli/catalog README](https://github.com/DailybotHQ/texuli/blob/main/packages/catalog/README.md)