dify/web/app/components/base/search-input/index.tsx

import type { FC } from 'react'
import { useRef, useState } from 'react'
import { useTranslation } from 'react-i18next'
import { RiCloseCircleFill, RiSearchLine } from '@remixicon/react'
import cn from '@/utils/classnames'

type SearchInputProps = {
  placeholder?: string
  className?: string
  value: string
  onChange: (v: string) => void
  white?: boolean
}

const SearchInput: FC<SearchInputProps> = ({
  placeholder,
  className,
  value,
  onChange,
  white,
}) => {
  const { t } = useTranslation()
  const [focus, setFocus] = useState<boolean>(false)
  const isComposing = useRef<boolean>(false)
  const [internalValue, setInternalValue] = useState<string>(value)

  return (
    <div className={cn(
      'group flex h-8 items-center overflow-hidden rounded-lg border-none bg-components-input-bg-normal px-2 hover:bg-components-input-bg-hover',
      focus && '!bg-components-input-bg-active',
      white && '!border-gray-300 !bg-white shadow-xs hover:!border-gray-300 hover:!bg-white',
      className,
    )}>
      <div className="pointer-events-none mr-1.5 flex h-4 w-4 shrink-0 items-center justify-center">
        <RiSearchLine className="h-4 w-4 text-components-input-text-placeholder" aria-hidden="true" />
      </div>
      <input
        type="text"
        name="query"
        className={cn(
          'system-sm-regular caret-#295EFF block h-[18px] grow appearance-none border-0 bg-transparent text-components-input-text-filled outline-none placeholder:text-components-input-text-placeholder',
          white && '!bg-white placeholder:!text-gray-400 hover:!bg-white group-hover:!bg-white',
        )}
        placeholder={placeholder || t('common.operation.search')!}
        value={internalValue}
        onChange={(e) => {
          setInternalValue(e.target.value)
          if (!isComposing.current)
            onChange(e.target.value)
        }}
        onCompositionStart={() => {
          isComposing.current = true
        }}
        onCompositionEnd={(e) => {
          isComposing.current = false
          onChange(e.data)
        }}
        onFocus={() => setFocus(true)}
        onBlur={() => setFocus(false)}
        autoComplete="off"
      />
      {value && (
        <div
          className='group/clear flex h-4 w-4 shrink-0 cursor-pointer items-center justify-center'
          onClick={() => {
            onChange('')
            setInternalValue('')
          }}
        >
          <RiCloseCircleFill className='h-4 w-4 text-text-quaternary group-hover/clear:text-text-tertiary' />
        </div>
      )}
    </div>
  )
}

export default SearchInput