tldraw/components/canvas/bounds/handles.tsx
2021-05-31 21:44:21 +01:00

76 lines
1.6 KiB
TypeScript

import useHandleEvents from 'hooks/useHandleEvents'
import { getShapeUtils } from 'lib/shape-utils'
import { useRef } from 'react'
import { useSelector } from 'state'
import styled from 'styles'
import { deepCompareArrays, getPage } from 'utils/utils'
import * as vec from 'utils/vec'
import { DotCircle } from '../misc'
export default function Handles() {
const selectedIds = useSelector(
(s) => Array.from(s.values.selectedIds.values()),
deepCompareArrays
)
const shape = useSelector(
({ data }) =>
selectedIds.length === 1 && getPage(data).shapes[selectedIds[0]]
)
const isTranslatingHandles = useSelector((s) => s.isIn('translatingHandles'))
if (!shape.handles || isTranslatingHandles) return null
return (
<g>
{Object.values(shape.handles).map((handle) => (
<Handle
key={handle.id}
shapeId={shape.id}
id={handle.id}
point={vec.add(handle.point, shape.point)}
/>
))}
</g>
)
}
function Handle({
shapeId,
id,
point,
}: {
shapeId: string
id: string
point: number[]
}) {
const rGroup = useRef<SVGGElement>(null)
const events = useHandleEvents(id, rGroup)
return (
<g
key={id}
ref={rGroup}
{...events}
pointerEvents="all"
transform={`translate(${point})`}
>
<HandleCircleOuter r={8} />
<DotCircle r={4} />
</g>
)
}
const HandleCircleOuter = styled('circle', {
fill: 'transparent',
pointerEvents: 'all',
cursor: 'pointer',
})
const HandleCircle = styled('circle', {
zStrokeWidth: 2,
stroke: '$text',
fill: '$panel',
pointerEvents: 'none',
})