overleaf/services/web/frontend/js/features/pdf-preview/components/switch-to-editor-button.tsx

import { useTranslation } from 'react-i18next'
import Icon from '../../../shared/components/icon'
import MaterialIcon from '@/shared/components/material-icon'
import OLButton from '@/features/ui/components/ol/ol-button'
import BootstrapVersionSwitcher from '@/features/ui/components/bootstrap-5/bootstrap-version-switcher'
import { useLayoutContext } from '../../../shared/context/layout-context'

function SwitchToEditorButton() {
  const { pdfLayout, setView, detachRole } = useLayoutContext()

  const { t } = useTranslation()

  if (detachRole) {
    return null
  }

  if (pdfLayout === 'sideBySide') {
    return null
  }

  function handleClick() {
    setView('editor')
  }

  return (
    <OLButton
      variant="secondary"
      size="sm"
      onClick={handleClick}
      bs3Props={{
        bsSize: 'xsmall',
        className: 'switch-to-editor-btn toolbar-btn-secondary',
      }}
    >
      <BootstrapVersionSwitcher
        bs3={<Icon type="code" className="toolbar-btn-secondary-icon" />}
        bs5={<MaterialIcon type="code" />}
      />
      {t('switch_to_editor')}
    </OLButton>
  )
}

export default SwitchToEditorButton