Text Area

Preview

Installation

pnpm add @oshon-ai/components @oshon-ai/tokens @oshon-ai/primitives

pnpm dlx @oshon-ai/cli add textarea

Wire the tokens into your Tailwind v4 stylesheet:

/* app/globals.css */
@import 'tailwindcss';
@import '@oshon-ai/tokens/css';
@import '@oshon-ai/tokens/tailwind';

New here? Walk through the full setup — prereqs, theming, your first render.

Usage

Import the component and render it. Every component supports the standard tier, size, and disabled props where applicable.

'use client';
import { TextArea } from '@oshon-ai/components';

export default function Example() {
  return <TextArea />;
}

<BasicField />

<div style={stackCol}>
      <p style={sectionHeading}>Enabled</p>
      <TextArea label="Label" required tooltip description="Optional Description" maxLength={200} />

      <p style={sectionHeading}>Filled</p>
      <TextArea label="Label" required tooltip description="Optional Description" defaultValue="User entered text spanning several words." maxLength={200} />

      <p style={sectionHeading}>ErrorEmpty</p>
      <TextArea label="Label" required tooltip error="Mandatory Error Description" maxLength={200} />

      <p style={sectionHeading}>ErrorFilled</p>
      <TextArea label="Label" required tooltip defaultValue="User entered text" error="Mandatory Error Description" maxLength={200} />

      <p style={sectionHeading}>DisabledEmpty</p>
      <TextArea label="Label" required tooltip description="Optional Description" disabled maxLength={200} />

      <p style={sectionHeading}>DisabledFilled</p>
      <TextArea label="Label" required tooltip description="Optional Description" defaultValue="User entered text" disabled maxLength={200} />
    </div>

<div style={stackCol}>
      <p style={sectionHeading}>Enabled</p>
      <TextArea size="mobile" label="Label" required tooltip description="Optional Description" maxLength={200} />
      <p style={sectionHeading}>Filled</p>
      <TextArea size="mobile" label="Label" required tooltip description="Optional Description" defaultValue="User entered text" maxLength={200} />
      <p style={sectionHeading}>ErrorFilled</p>
      <TextArea size="mobile" label="Label" required tooltip defaultValue="User entered text" error="Mandatory Error Description" maxLength={200} />
    </div>

<SizeLadderPlayground />

Styling

Three layers of customization, in order of escape-hatch strength: className overrides → data-attribute targeting → CSS custom properties.

Passing Tailwind classes

Every Oshon component accepts a className prop merged AFTER the component's default classes. Use it to override spacing, color, or size without forking the component.

<TextArea
  className="ring-2 ring-offset-2 ring-blue-500"
/>

Data attributes

Oshon components expose their internal state as data-oshon-* attributes so you can target them from CSS without coupling to internal class names. The most common attributes are listed below — see the component's source for the full set.

/* Target the secondary tier specifically */
[data-oshon-tier="secondary"] {
  --oshon-color-primary-700: var(--my-brand-color);
}

Interactive states

Every interactive component supports the standard CSS pseudo- classes plus Tailwind's state variants. Focus rings always use :focus-visible so keyboard users see them but mouse users don't.

• :hover / hover:* — pointer hover
• :focus-visible / focus-visible:* — keyboard focus
• :active / active:* — pressed
• :disabled / disabled:* — set via the disabled prop

Anatomy

The named regions a consumer composes when rendering this component. Each is documented separately so you can target keyboard nav, ARIA labels, and slot props with precision.

Keyboard

Accessibility

Every Oshon component ships axe-clean. We test in CI on every PR and publish the audit log per component.

WCAG level

2.2 AA

Screen readers tested

VoiceOver (macOS), NVDA (Windows)

Last axe audit

2026-04-21

Do / Don't

<TextArea label="Notes" placeholder="Add a note…" />

<TextArea label="Bio" maxLength={200} description="Keep it short." />

<TextArea label="Summary" required error="Required." />

<TextArea size="mobile" label="Message" maxLength={200} />

<textarea />

<TextArea label="X" required aria-required />

<TextArea label="X" description="Help" error="Bad" />

Related

• @oshon-ai/components/text-field
• @oshon-ai/components/input

Design rationale

Phase 4e.3 visual fidelity refit. Pixel-literal port of Figma DS 3.1 TextArea component set (node 5984:15699) — all 16 variants. Min-height per size roughly matches the Figma 3-line depth (72px at m desktop, 96px at mobile). Counter is the only divergence from TextField: right-justified with typography-color split per Figma (current in neutral-900, "/max" in neutral-600). Native `resize-y` is allowed on enabled states and disabled on disabled.