slate/site/examples/ts/components/index.tsx

import { css, cx } from '@emotion/css'
import React, { PropsWithChildren, ReactNode, Ref } from 'react'
import ReactDOM from 'react-dom'

interface BaseProps {
  className: string
  [key: string]: unknown
}

export const Button = React.forwardRef(
  (
    {
      className,
      active,
      reversed,
      ...props
    }: PropsWithChildren<
      {
        active: boolean
        reversed: boolean
      } & BaseProps
    >,
    ref: Ref<HTMLSpanElement>
  ) => (
    <span
      {...props}
      ref={ref}
      className={cx(
        className,
        css`
          cursor: pointer;
          color: ${reversed
            ? active
              ? 'white'
              : '#aaa'
            : active
            ? 'black'
            : '#ccc'};
        `
      )}
    />
  )
)

export const Icon = React.forwardRef(
  (
    { className, ...props }: PropsWithChildren<BaseProps>,
    ref: Ref<HTMLSpanElement>
  ) => (
    <span
      {...props}
      ref={ref}
      className={cx(
        'material-icons',
        className,
        css`
          font-size: 18px;
          vertical-align: text-bottom;
        `
      )}
    />
  )
)

export const Instruction = React.forwardRef(
  (
    { className, ...props }: PropsWithChildren<BaseProps>,
    ref: Ref<HTMLDivElement>
  ) => (
    <div
      {...props}
      ref={ref}
      className={cx(
        className,
        css`
          white-space: pre-wrap;
          margin: 0 -20px 10px;
          padding: 10px 20px;
          font-size: 14px;
          background: #f8f8e8;
        `
      )}
    />
  )
)

export const Menu = React.forwardRef(
  (
    { className, ...props }: PropsWithChildren<BaseProps>,
    ref: Ref<HTMLDivElement>
  ) => (
    <div
      {...props}
      data-test-id="menu"
      ref={ref}
      className={cx(
        className,
        css`
          & > * {
            display: inline-block;
          }

          & > * + * {
            margin-left: 15px;
          }
        `
      )}
    />
  )
)

export const Portal = ({ children }: { children?: ReactNode }) => {
  return typeof document === 'object'
    ? ReactDOM.createPortal(children, document.body)
    : null
}

export const Toolbar = React.forwardRef(
  (
    { className, ...props }: PropsWithChildren<BaseProps>,
    ref: Ref<HTMLDivElement>
  ) => (
    <Menu
      {...props}
      ref={ref}
      className={cx(
        className,
        css`
          position: relative;
          padding: 1px 18px 17px;
          margin: 0 -20px;
          border-bottom: 2px solid #eee;
          margin-bottom: 20px;
        `
      )}
    />
  )
)