itk-viewer-material-ui/src/Images/ShadowToggle.jsx

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import React, { useEffect, useRef } from 'react'
import { useActor } from '@xstate/react'
import { Icon, ToggleButton, Tooltip } from '@mui/material'
import { shadowIconDataUri } from 'itk-viewer-icons'
import applyContrastSensitiveStyleToElement from '../applyContrastSensitiveStyleToElement'
import '../style.css'

function ShadowToggle(props) {
  const { service } = props
  const shadowButton = useRef(null)
  const [state, send] = useActor(service)
  const name = state.context.images.selectedName
  const actorContext = state.context.images.actorContext.get(name)

  useEffect(() => {
    applyContrastSensitiveStyleToElement(
      state.context,
      'invertibleButton',
      shadowButton.current
    )
    state.context.images.shadowButtonInput = shadowButton.current
  }, [])

  return (
    <Tooltip
      ref={shadowButton}
      title="Use Shadow"
      PopperProps={{
        anchorEl: shadowButton.current,
        disablePortal: true,
        keepMounted: true
      }}
    >
      <ToggleButton
        size="small"
        className="toggleButton"
        value="shadowVisible"
        selected={actorContext.shadowEnabled}
        onChange={() => {
          send({
            type: 'TOGGLE_IMAGE_SHADOW',
            data: name
          })
        }}
      >
        <Icon className="shadowButton">
          <img src={shadowIconDataUri} />
        </Icon>
      </ToggleButton>
    </Tooltip>
  )
}

export default ShadowToggle