react-resizable-layout

Lightweight, accessible headless React component and hook for drag-and-drop resizable layouts.

Storybook Demo

Features

• 📦 Lightweight
• 🕳 Headless
• 🫶🏽 Accessible
• 🤏 Drag and Drop Support
• ⌨️ Keyboard Support
• 🫙 Zero Dependencies

Installation

Install from npm:

# Using npm
npm install react-resizable-layout

# Using Yarn
yarn add react-resizable-layout

Usage

Resizable component

import Resizable from 'react-resizable-layout';

<Resizable axis={'x'}>
  {({ position, separatorProps }) => (
    <div className="wrapper">
      <div className="left-block" style={{ width: position }} />
      <YourSeparatorComponent {...separatorProps} />
      <div className="right-block" />
    </div>
  )}
</Resizable>

useResizable hook

import { useResizable } from 'react-resizable-layout';

const Component = () => {
  const { position, separatorProps } = useResizable({
    axis: 'x',
  })

  return (
    <div className="wrapper">
      <div className="left-block" style={{ width: position }} />
      <YourSeparatorComponent {...separatorProps} />
      <div className="right-block" />
    </div>
  )
}

Aria Props

The following attributes have been added to separatorProps in accordance with W3C.
https://www.w3.org/TR/wai-aria-1.2/#separator

| Attribute | Value | |------------------|--------------------------------| | role | 'separator' | | aria-valuenow | position | | aria-valuemin | props.min | | aria-valuemax | props.max | | aria-orientation | 'vertical' or 'horizontal' | | aria-disabled | props.disabled |

Configuration

Common Props

| Name | Type | Default | Required | Description | |---------------|-------------------------|----------|----------|---------------------------------------------------------------------------| | axis | 'x' or 'y' | - | ◯ | Resize direction | | disabled | boolean | false | - | Disable resize | | initial | number | 0 | - | Initial size | | min | number | 0 | - | Minimum size | | max | number | Infinity | - | Maximum size | | reverse | boolean | false | - | If true, returns position of the opposite side | | step | number | 10 | - | Pixel steps when operating with keyboard | | shiftStep | number | 50 | - | Pixel steps when operating with keyboard while holding down the shift key | | onResizeStart | function | - | - | Callback on resize start | | onResizeEnd | function | - | - | Callback on resize end | | containerRef | ReactRef | - | - | Reference to container for calculating position |

Resizable component children args

useResizable hook returns same.

| Name | Type | Description | |----------------|---------|----------------------------------------------------------------| | position | number | Separator's position (Width for 'x' axis, height for 'y' axis) | | isDragging | boolean | If dragging then true | | separatorProps | object | Separator's props like onMouseDown |

About keyboard support

The following keyboard operations are supported.

| Key | Operation | |-----------------------------------|---------------------------------------------| | Arrow (↑,→,↓,←) | Move the separator by 10px (default) | | Shift + Arrow (↑,→,↓,←) | Move the separator by 50px (default) | | Enter | Reset the separator to the initial position |

About mouse support

Double-click on the separator to return it to its initial position.

Contribution

Please feel free to open an issue or make a pull request.

License

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