npm i react-hotkeys-hook

A React hook for using keyboard shortcuts in components in a declarative way.

Quick Start

The easiest way to use the hook.

import { useHotkeys } from 'react-hotkeys-hook'

export const ExampleComponent = () => {
  const [count, setCount] = useState(0)
  useHotkeys('ctrl+k', () => setCount(count + 1), [count])

  return (
    <p>
      Pressed {count} times.
    </p>
  )
}

Scopes

Scopes allow you to group hotkeys together. You can use scopes to prevent hotkeys from colliding with each other.

const App = () => {
  return (
    <HotkeysProvider initiallyActiveScopes={['settings']}>
      <ExampleComponent />
    </HotkeysProvider>
  )
}

export const ExampleComponent = () => {
  const [count, setCount] = useState(0)
  useHotkeys('ctrl+k', () => setCount(prevCount => prevCount + 1), { scopes: ['settings'] })

  return (
    <p>
      Pressed {count} times.
    </p>
  )
}

Changing a scope's active state

You can change the active state of a scope using the disableScope, enableScope and toggleScope functions returned by the useHotkeysContext() hook. Note that you have to have your app wrapped in a <HotkeysProvider> component.

const App = () => {
  return (
    <HotkeysProvider initiallyActiveScopes={['settings']}>
      <ExampleComponent />
    </HotkeysProvider>
  )
}

export const ExampleComponent = () => {
  const { toggleScope } = useHotkeysContext()

  return (
    <button onClick={() => toggleScope('settings')}>
      Change scope active state
    </button>
  )
}

Focus trap

This will only trigger the hotkey if the component is focused.

export const ExampleComponent = () => {
  const [count, setCount] = useState(0)
  const ref = useHotkeys<HTMLParagraphElement>('ctrl+k', () => setCount(prevCount => prevCount + 1))

  return (
    <p tabIndex={-1} ref={ref}>
      Pressed {count} times.
    </p>
  )
}

Documentation & Live Examples

• Quick Start
• Documentation
• API

API

useHotkeys(keys, callback)

useHotkeys(keys: string | string[], callback: (event: KeyboardEvent, handler: HotkeysEvent) => void, options: Options = {}, deps: DependencyList = [])

Options

All options are optional and have a default value which you can override to change the behavior of the hook.

Overloads

The hooks call signature is very flexible. For example if you don't need to set any special options you can use the dependency array as your third parameter:

useHotkeys('ctrl+k', () => console.log(counter + 1), [counter])

isHotkeyPressed(keys: string | string[], splitKey?: string = ',')

This function allows us to check if the user is currently pressing down a key.

import { isHotkeyPressed } from 'react-hotkeys-hook'

isHotkeyPressed('esc') // Returns true if Escape key is pressed down.

You can also check for multiple keys at the same time:

isHotkeyPressed(['esc', 'ctrl+s']) // Returns true if Escape or Ctrl+S are pressed down.

Support

• Ask your question in the Github Discussions
• Ask your question on StackOverflow

Found an issue or have a feature request?

Open up an issue or pull request and participate.

Local Development

Checkout this repo, run yarn or npm i and then run the test script to test the behavior of the hook.

Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License

Distributed under the MIT License. See LICENSE for more information.

Contact

Johannes Klauss - @JohannesKlauss - [email protected]

Project Link: https://github.com/JohannesKlauss/react-hotkeys-hook

Contributors