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import { useLoadGraph, useRegisterEvents, useSetSettings, useSigma } from '@react-sigma/core'
// import { useLayoutCircular } from '@react-sigma/layout-circular'
import { useLayoutForceAtlas2 } from '@react-sigma/layout-forceatlas2'
import { useEffect } from 'react'
// import useRandomGraph, { EdgeType, NodeType } from '@/hooks/useRandomGraph'
import useLightragGraph, { EdgeType, NodeType } from '@/hooks/useLightragGraph'
import useTheme from '@/hooks/useTheme'
import * as Constants from '@/lib/constants'
import { useSettingsStore } from '@/stores/settings'
import { useGraphStore } from '@/stores/graph'
const isButtonPressed = (ev: MouseEvent | TouchEvent) => {
if (ev.type.startsWith('mouse')) {
if ((ev as MouseEvent).buttons !== 0) {
return true
}
}
return false
}
const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean }) => {
const { lightrageGraph } = useLightragGraph()
const sigma = useSigma<NodeType, EdgeType>()
const registerEvents = useRegisterEvents<NodeType, EdgeType>()
const setSettings = useSetSettings<NodeType, EdgeType>()
const loadGraph = useLoadGraph<NodeType, EdgeType>()
const { assign: assignLayout } = useLayoutForceAtlas2({
iterations: 20
})
const { theme } = useTheme()
const hideUnselectedEdges = useSettingsStore.use.enableHideUnselectedEdges()
const selectedNode = useGraphStore.use.selectedNode()
const focusedNode = useGraphStore.use.focusedNode()
const selectedEdge = useGraphStore.use.selectedEdge()
const focusedEdge = useGraphStore.use.focusedEdge()
/**
* When component mount
* => load the graph
*/
useEffect(() => {
// Create & load the graph
const graph = lightrageGraph()
loadGraph(graph)
if (!(graph as any).__force_applied) {
assignLayout()
Object.assign(graph, { __force_applied: true })
}
const { setFocusedNode, setSelectedNode, setFocusedEdge, setSelectedEdge, clearSelection } =
useGraphStore.getState()
// Register the events
registerEvents({
enterNode: (event) => {
if (!isButtonPressed(event.event.original)) {
setFocusedNode(event.node)
}
},
leaveNode: (event) => {
if (!isButtonPressed(event.event.original)) {
setFocusedNode(null)
}
},
clickNode: (event) => {
setSelectedNode(event.node)
setSelectedEdge(null)
},
clickEdge: (event) => {
setSelectedEdge(event.edge)
setSelectedNode(null)
},
enterEdge: (event) => {
if (!isButtonPressed(event.event.original)) {
setFocusedEdge(event.edge)
}
},
leaveEdge: (event) => {
if (!isButtonPressed(event.event.original)) {
setFocusedEdge(null)
}
},
clickStage: () => clearSelection()
})
}, [assignLayout, loadGraph, registerEvents, lightrageGraph])
/**
* When component mount or hovered node change
* => Setting the sigma reducers
*/
useEffect(() => {
const isDarkTheme = theme === 'dark'
const labelColor = isDarkTheme ? Constants.labelColorDarkTheme : undefined
const edgeColor = isDarkTheme ? Constants.edgeColorDarkTheme : undefined
setSettings({
nodeReducer: (node, data) => {
const graph = sigma.getGraph()
const newData: NodeType & {
labelColor?: string
borderColor?: string
} = { ...data, highlighted: data.highlighted || false, labelColor }
if (!disableHoverEffect) {
newData.highlighted = false
const _focusedNode = focusedNode || selectedNode
const _focusedEdge = focusedEdge || selectedEdge
if (_focusedNode) {
if (node === _focusedNode || graph.neighbors(_focusedNode).includes(node)) {
newData.highlighted = true
if (node === selectedNode) {
newData.borderColor = Constants.nodeBorderColorSelected
}
}
} else if (_focusedEdge) {
if (graph.extremities(_focusedEdge).includes(node)) {
newData.highlighted = true
newData.size = 3
}
} else {
return newData
}
if (newData.highlighted) {
if (isDarkTheme) {
newData.labelColor = Constants.LabelColorHighlightedDarkTheme
}
} else {
newData.color = Constants.nodeColorDisabled
}
}
return newData
},
edgeReducer: (edge, data) => {
const graph = sigma.getGraph()
const newData = { ...data, hidden: false, labelColor, color: edgeColor }
if (!disableHoverEffect) {
const _focusedNode = focusedNode || selectedNode
if (_focusedNode) {
if (hideUnselectedEdges) {
if (!graph.extremities(edge).includes(_focusedNode)) {
newData.hidden = true
}
} else {
if (graph.extremities(edge).includes(_focusedNode)) {
newData.color = Constants.edgeColorHighlighted
}
}
} else {
if (focusedEdge || selectedEdge) {
if (edge === selectedEdge) {
newData.color = Constants.edgeColorSelected
} else if (edge === focusedEdge) {
newData.color = Constants.edgeColorHighlighted
} else if (hideUnselectedEdges) {
newData.hidden = true
}
}
}
}
return newData
}
})
}, [
selectedNode,
focusedNode,
selectedEdge,
focusedEdge,
setSettings,
sigma,
disableHoverEffect,
theme,
hideUnselectedEdges
])
return null
}
export default GraphControl
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