tldraw/components/canvas/bounds/handles.tsx
2021-06-05 07:36:39 +01:00

92 lines
1.9 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'
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 isSelecting = useSelector((s) =>
s.isInAny('notPointing', 'pinching', 'translatingHandles')
)
if (!shape.handles || !isSelecting) 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 (
<StyledGroup
key={id}
className="handles"
ref={rGroup}
{...events}
pointerEvents="all"
transform={`translate(${point})`}
>
<HandleCircleOuter r={12} />
<use href="#handle" pointerEvents="none" />
</StyledGroup>
)
}
const StyledGroup = styled('g', {
'&:hover': {
cursor: 'pointer',
},
'&:active': {
cursor: 'none',
},
})
const HandleCircleOuter = styled('circle', {
fill: 'transparent',
stroke: 'none',
opacity: 0.2,
pointerEvents: 'all',
cursor: 'pointer',
transform: 'scale(var(--scale))',
'&:hover': {
fill: '$selected',
'& > *': {
stroke: '$selected',
},
},
'&:active': {
fill: '$selected',
},
})