Expandable Control
A compact pill that stretches open into a slider on hover or focus. Drag it, scroll over it or use the arrow keys, and it tucks away again when you leave.
- Category: React Input Components
- Licence: Charcoal UI Pro
- Built with: React 19, Tailwind CSS 4, Motion
- Dependencies: motion, clsx, tailwind-merge
Examples
Expandable Control
API reference
| Prop | Type | Default | Description |
|---|---|---|---|
value / defaultValue | number | 60 | |
onValueChange | (v: number) => void | — | |
label | string | "Volume" | |
icon | ReactNode | — | |
className | string | — |
About Expandable Control
Expandable Control sits as a small pill and stretches open into a slider on hover or focus. Drag it, scroll over it or use the arrow keys, and it tucks away again when you leave.
Expandable Control is an input component for React 19, styled with Tailwind CSS 4 and animated with Motion. It drops into Next.js, Vite, Remix or Astro through the shadcn CLI as a single file you own.
When to use Expandable Control
- Video and audio players.
- Compact toolbars.
- Smart home and IoT dashboards.
- Mobile layouts short on space.
How it works
Width animates on a spring, and the wheel listener is non-passive only on the control so the page does not scroll while you adjust. It is a slider role, and the icon reflects the level.
It is a real form control: it has an accessible name, works with the keyboard alone, shows a visible focus ring and announces its state to screen readers. With prefers-reduced-motion on, it holds still or settles instantly instead of animating.
Customizing Expandable Control
Every prop is documented in the API reference above with its type and default. The ones you will reach for first are listed here.
The Customize panel next to the preview lets you change defaultValue live, and the Code tab updates to match, so the snippet you copy already carries your values.
- value / defaultValue (number, default 60).
- label (string, default "Volume").
- icon (ReactNode).
Goes well with Expandable Control
These inputs pieces share its tokens and motion language, so they sit together on one page without clashing.
- Magnetic: Make any React element lean toward the pointer and spring home: a magnetic hover in one wrapper
- Color Picker: An animated React swatch colour picker with a ring that glides to the selection
- Rating: An animated React star rating with hover preview and a ripple of popping stars
- File Dropzone: An animated React file dropzone that lifts on hover and lists uploads with progress
- Like Button: An animated React like button: the heart pops, sparks burst and the count rolls
Install Expandable Control
npx shadcn@latest add @charcoal/expandable-controlExpandable Control is part of Charcoal UI Pro. One seat unlocks all 393 Pro components, 112 landing-page sections and 100 full templates, for every personal and client project, with updates included. Add the @charcoal registry once with your access token, then the command above copies expandable-control.tsx into components/ui and installs clsx, tailwind-merge.
You own the file you install: no runtime package, no lock-in, nothing to keep in sync. Change it however your product needs.
See Charcoal UI Pro pricing · Pro setup
Frequently asked questions
- How do I install Expandable Control?
- Expandable Control is part of Charcoal UI Pro. Add the @charcoal registry to components.json with your access token, then run npx shadcn@latest add @charcoal/expandable-control. It copies expandable-control.tsx into components/ui and installs motion, clsx, tailwind-merge.
- Is Expandable Control free for commercial use?
- Expandable Control needs a Charcoal UI Pro seat, monthly or a one-time lifetime price. A seat covers unlimited personal and commercial projects, including client work, and every future Pro component.
- Does Expandable Control work with Next.js?
- Yes. It is a client component for React 19 styled with Tailwind CSS 4, so it works in the Next.js App Router and Pages Router, Vite, Remix and Astro.
- Can an AI coding agent install Expandable Control?
- Yes. Connect the Charcoal UI MCP server (https://charcoalui.com/mcp) to Claude Code, Cursor or any MCP client; get_component returns Expandable Control's props and get_install_command returns the exact command.