number-box

React text input with draggable number value.

demo

Install

npm i @lokua/number-box

Usage

import NumberBox from '@lokua/number-box'

// Values below represent the default values
const numberBox = (
  <NumberBox
    value={value}
    min={0}
    max={100}
    step={1}
    // General amount of pixels it takes to drag from min to max
    pixelRange={150}
    onChange={(value) => {
      // store value
    }}
  />
)

UX Notes

Manual Input

To edit the value manually you need to double click the input which will automatically put the input in focus and allow typing as implementation-wise having to guess if a single click is to enter a value or begin dragging is a bit tricky.

Step Precision

The step prop represents what value the result of a drag operation will be quantized or "snapped" to, otherwise if we strictly only allowed moving by step, then for example a range of 100_000 and a step of 1 would take about 53 average computer screen's worth of dragging to get from min to max - not a great user experience! Fortunately for precision - besides typing into the input manually - you can hold shift while dragging to force moving exactly by step increments.

Styles

NumberBox does not ship with any styles in order to make customization as easy as possible

Prior Art

Implementation is loosely based on Dat GUI's NumberControllerBox and NexusUI's Number.

License

MIT