kopia lustrzana https://github.com/Tldraw/Tldraw
34 wiersze
922 B
TypeScript
34 wiersze
922 B
TypeScript
import { useSelector } from 'state'
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import Shape from './shape'
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import HoveredShape from './hovered-shape'
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import usePageShapes from 'hooks/usePageShapes'
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/*
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On each state change, compare node ids of all shapes
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on the current page. Kind of expensive but only happens
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here; and still cheaper than any other pattern I've found.
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*/
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export default function Page(): JSX.Element {
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const showHovers = useSelector((s) =>
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s.isInAny('selecting', 'text', 'editingShape')
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)
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const visiblePageShapeIds = usePageShapes()
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const hoveredShapeId = useSelector((s) => {
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return visiblePageShapeIds.find((id) => id === s.data.hoveredId)
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})
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return (
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<g pointerEvents={showHovers ? 'all' : 'none'}>
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{showHovers && hoveredShapeId && (
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<HoveredShape key={hoveredShapeId} id={hoveredShapeId} />
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)}
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{visiblePageShapeIds.map((id) => (
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<Shape key={id} id={id} />
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))}
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</g>
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)
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}
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