tldraw/components/tools-panel/undo-redo.tsx

import { IconButton } from 'components/shared'
import { RotateCcw, RotateCw, Trash2 } from 'react-feather'
import state, { useSelector } from 'state'
import styled from 'styles'

const undo = () => state.send('UNDO')
const redo = () => state.send('REDO')
const clear = () => state.send('CLEARED_PAGE')

export default function UndoRedo() {
  return (
    <Container size={{ '@sm': 'small' }}>
      <IconButton onClick={undo}>
        <RotateCcw />
      </IconButton>
      <IconButton onClick={redo}>
        <RotateCw />
      </IconButton>
      <IconButton onClick={clear}>
        <Trash2 />
      </IconButton>
    </Container>
  )
}

const Container = styled('div', {
  position: 'absolute',
  bottom: 64,
  right: 12,
  backgroundColor: '$panel',
  borderRadius: '4px',
  overflow: 'hidden',
  alignSelf: 'flex-end',
  border: '1px solid $border',
  pointerEvents: 'all',
  userSelect: 'none',
  zIndex: 200,
  boxShadow: '0px 2px 12px rgba(0,0,0,.08)',
  display: 'flex',
  padding: 4,

  '& svg': {
    height: 13,
    width: 13,
  },

  variants: {
    size: {
      small: {
        bottom: 12,
      },
    },
  },
})