import { useEffect, useRef } from 'react'
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import cn from '@/utils/classnames'
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type AutoHeightTextareaProps =
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& React.DetailedHTMLProps<React.TextareaHTMLAttributes<HTMLTextAreaElement>, HTMLTextAreaElement>
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& { outerClassName?: string }
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const AutoHeightTextarea = (
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{
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ref: outRef,
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outerClassName,
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value,
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className,
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placeholder,
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autoFocus,
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disabled,
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...rest
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}: AutoHeightTextareaProps & {
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ref: React.RefObject<HTMLTextAreaElement>;
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},
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) => {
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const innerRef = useRef<HTMLTextAreaElement>(null)
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const ref = outRef || innerRef
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useEffect(() => {
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if (autoFocus && !disabled && value) {
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if (typeof ref !== 'function') {
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ref.current?.setSelectionRange(`${value}`.length, `${value}`.length)
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ref.current?.focus()
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}
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}
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}, [autoFocus, disabled, ref])
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return (
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(<div className={outerClassName}>
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<div className='relative'>
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<div className={cn(className, 'invisible whitespace-pre-wrap break-all')}>
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{!value ? placeholder : `${value}`.replace(/\n$/, '\n ')}
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</div>
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<textarea
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ref={ref}
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placeholder={placeholder}
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className={cn(className, 'absolute inset-0 h-full w-full resize-none appearance-none border-none outline-none disabled:bg-transparent')}
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value={value}
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disabled={disabled}
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{...rest}
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/>
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</div>
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</div>)
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)
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}
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AutoHeightTextarea.displayName = 'AutoHeightTextarea'
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export default AutoHeightTextarea
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