React Knob (for web)

🦚 Demo: Donut | Silver | White | HighContrast | Basic

Mouse/touch/keyboard-friendly, accessible, knob component for the web.

Based on pure HTML/SVG elements without dependencies.

Implemented in TypeScript. Treeshakable with minimal footprint (core around 2kb).

📈 Performance

~10% scripting time while interacting, 90% Idle

🧩 Installing

npm install --save-dev react-dial-knob

UMD module

https://unpkg.com/react-dial-knob/dist/react-dial-knob.umd.js

🦚 Skins & Demo

The package comes with five configurable skins - Donut | Silver | White | HighContrast | Basic

A short tutorial on how to "Create skin component" can be found in the storybook and CodePen. Essentially drop an SVG with few lines of code.

✔ Usage

You have to store value and update the component (controlled component).

See at CodePen

import React, { useState } from 'react'
import { Donut } from 'react-dial-knob'

export default function MyPage() {
    const [value, setValue] = useState(0)
    return <Donut
        diameter={200}
        min={0}
        max={100}
        step={1}
        value={value}
        theme={{
            donutColor: 'blue'
        }}
        onValueChange={setValue}
        ariaLabelledBy={'my-label'}
    >
        <label id={'my-label'}>Some label</label>
    </Donut>
}

Props

• value: number
• min: number
• max: number
• step: number
• ariaLabelledBy?: string
• onValueChange?: (value: number) => void
• and few more...

🧾 Notes

sideEffects is set to false - tree shaking will remove all unused parts and will further reduce the size of your final bundle.

Skins are independent of each other. The final bundle size is a sum of common dependencies plus skin size (typically around ~2.5kb with a single skin). Indicative stats on sizes can be found in "stats.html"

** Core-only UMD build is available **

https://unpkg.com/react-dial-knob/dist/react-dial-knob.umd.core-only.min.js

• NPM - https://www.npmjs.com/package/react-dial-knob
• GitHub - https://github.com/pavelkukov/react-dial-knob
• Storybook - https://pavelkukov.github.io/react-dial-knob/?path=/story/knob-read-me--readme

👋 Author

Pavel Kukov pavelkukov@gmail.com

© LICENSE (MIT)

See LICENSE.txt in the root directory

🙌 Acknowledgments

• Repo structure and tooling are inspired by: https://github.com/danilowoz/react-content-loader
• Silver theme is based on https://codepen.io/simurai/pen/DwJdq
• Donut theme is based on https://codepen.io/Hyungsub08/pen/yLBPJKW