Overleaf/services/web/frontend/js/features/ui/components/bootstrap-5/button.tsx

import { Button as BS5Button, Spinner } from 'react-bootstrap-5'
import type { ButtonProps } from '@/features/ui/components/types/button-props'
import classNames from 'classnames'
import { useTranslation } from 'react-i18next'
import MaterialIcon from '@/shared/components/material-icon'

const sizeClasses = new Map<ButtonProps['size'], string>([
  ['small', 'btn-sm'],
  ['default', ''],
  ['large', 'btn-lg'],
])

export default function Button({
  children,
  className,
  leadingIcon,
  isLoading = false,
  loadingLabel,
  size = 'default',
  trailingIcon,
  variant = 'primary',
  ...props
}: ButtonProps) {
  const { t } = useTranslation()

  const sizeClass = sizeClasses.get(size)
  const buttonClassName = classNames('d-inline-grid', sizeClass, className, {
    'button-loading': isLoading,
  })
  const loadingSpinnerClassName =
    size === 'large' ? 'loading-spinner-large' : 'loading-spinner-small'
  const materialIconClassName = size === 'large' ? 'icon-large' : 'icon-small'

  return (
    <BS5Button className={buttonClassName} variant={variant} {...props}>
      {isLoading && (
        <span className="spinner-container">
          <Spinner
            animation="border"
            aria-hidden="true"
            as="span"
            className={loadingSpinnerClassName}
            role="status"
          />
          <span className="visually-hidden">
            {loadingLabel ?? t('loading')}
          </span>
        </span>
      )}
      <span className="button-content" aria-hidden={isLoading}>
        {leadingIcon && (
          <MaterialIcon type={leadingIcon} className={materialIconClassName} />
        )}
        {children}
        {trailingIcon && (
          <MaterialIcon type={trailingIcon} className={materialIconClassName} />
        )}
      </span>
    </BS5Button>
  )
}