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RotateExample.js
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RotateExample.js
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import React, { useState, useCallback, useEffect } from 'react'
import useRotateElement from "./userRotateElement"
const RotateElement = () => {
const [explicitDegree, setExplicitDegree] = useState(null)
const [inputValue, setInputValue] = useState(null)
const [setRef, degrees] = useRotateElement(explicitDegree)
const handleInputChange = useCallback(event => {
const { value } = event.target
if(value != null && Number.isFinite(Number(value))) {
setExplicitDegree(Math.floor(value))
setInputValue(Math.floor(value))
} else {
setExplicitDegree(null)
setInputValue(null)
}
}, [])
useEffect(() => {
if(degrees != null) {
setInputValue(Math.floor(degrees))
} else {
setInputValue(null)
}
}, [degrees])
return (
<div style={{ position: 'relative'}}>
<label>Degrees:</label>
<input value={inputValue} onChange={handleInputChange} type='number' style={{ marginBottom: '2rem' }} />
<div
ref={setRef}
className='dial-circle'
style={{
width: '100px',
height: '40px',
margin: '0 auto',
background: 'aquamarine',
transform: `rotate(${Math.floor(degrees)}deg)`
}}
>
<span className='marker' />
</div>
</div>
)
}
export default RotateElement