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refactor: Split up drawing component into sub-component files
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| import React, { useEffect, useState } from "react"; | ||
| import { DrawingMode } from "../graph"; | ||
| import AddNodeIcon from "../../assets/add-node-icon.svg"; | ||
| import AddEdgeIcon from "../../assets/add-edge-icon.svg"; | ||
| import DeleteIcon from "../../assets/delete-icon.svg"; | ||
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| export const DragIcon = ({ drawingMode }: { drawingMode: DrawingMode; }) => { | ||
| const [style, setStyle] = useState<React.CSSProperties>({}); | ||
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| useEffect(() => { | ||
| const mouseHandler = (e: MouseEvent) => setStyle({ left: e.clientX - 20, top: e.clientY - 20 }); | ||
| window.addEventListener("mousemove", mouseHandler); | ||
| return () => window.removeEventListener("mousemove", mouseHandler); | ||
| }, []); | ||
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| if (drawingMode === "addEdge") { | ||
| return <div className="dragIcon" style={style}><AddEdgeIcon /></div>; | ||
| } | ||
| if (drawingMode === "addNode") { | ||
| return <div className="dragIcon" style={style}><AddNodeIcon /></div>; | ||
| } | ||
| if (drawingMode === "delete") { | ||
| return <div className="dragIcon" style={style}><DeleteIcon /></div>; | ||
| } | ||
| return null; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| import React, { useCallback, useEffect, useMemo, useState } from "react"; | ||
| import { ProbabilitySelector, percentage, reduceToSum } from "./probability-selector"; | ||
| import { Node, Edge, GraphData } from "../../type"; | ||
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| export interface NodeModalProps { | ||
| node?: Node, | ||
| graph: GraphData; | ||
| onChange: (id: string, newNode: Node, newEdge: Edge[]) => void, | ||
| onCancel: () => void | ||
| } | ||
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| export const NodeModal = ({ node, graph, onChange, onCancel }: NodeModalProps) => { | ||
| const [label, setLabel] = useState(node?.label || ""); | ||
| const [exactPercentages, _setExactPercentages] = useState<number[]>([]); | ||
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| const setExactPercentages = useCallback((percentages: number[]) => { | ||
| // make sure percentages add up to exactly 100% | ||
| const allButLastSum = reduceToSum(percentages.slice(0, -1)); | ||
| percentages[percentages.length - 1] = 100 - allButLastSum; | ||
| _setExactPercentages(percentages); | ||
| }, [_setExactPercentages]); | ||
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| const fromEdges = useMemo(() => { | ||
| return node ? graph.edges.filter(e => e.from === node.id) : []; | ||
| }, [node, graph.edges]); | ||
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| const edgeLabels = useMemo(() => { | ||
| const labels = graph.nodes.reduce<Record<string, string>>((acc, cur) => { | ||
| acc[cur.id] = cur.label; | ||
| return acc; | ||
| }, {}); | ||
| return fromEdges.map(e => labels[e.to]); | ||
| }, [graph.nodes, fromEdges]); | ||
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| const edgeValues = useMemo(() => fromEdges.map(e => e.value), [fromEdges]); | ||
| const sum = useMemo(() => reduceToSum(edgeValues), [edgeValues]); | ||
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| useEffect(() => { | ||
| const percentages = edgeValues.map(edgeValue => percentage(edgeValue / sum)); | ||
| setExactPercentages(percentages); | ||
| }, [edgeValues, sum, setExactPercentages]); | ||
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| useEffect(() => { | ||
| setLabel(node?.label || ""); | ||
| }, [node, setLabel]); | ||
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| const handleSubmit = useCallback((e: React.FormEvent) => { | ||
| e.preventDefault(); | ||
| if (node) { | ||
| let valueIndex = 0; | ||
| const newEdges = graph.edges.map(edge => { | ||
| if (edge.from === node.id) { | ||
| const value = sum * exactPercentages[valueIndex++]; | ||
| return { ...edge, value }; | ||
| } else { | ||
| return edge; | ||
| } | ||
| }); | ||
| onChange(node.id, { ...node, label: label.trim() }, newEdges); | ||
| } | ||
| }, [label, node, exactPercentages, graph.edges, sum, onChange]); | ||
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| const handleChangeLabel = (e: React.ChangeEvent<HTMLInputElement>) => { | ||
| setLabel(e.target.value); | ||
| }; | ||
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| if (!node) { | ||
| return null; | ||
| } | ||
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| return ( | ||
| <> | ||
| <div className="nodeModalBackground" /> | ||
| <div className="nodeModal"> | ||
| <div className="nodeModalContent"> | ||
| <div className="nodeModalTitle">Update State</div> | ||
| <form onSubmit={handleSubmit}> | ||
| <input type="text" value={label} onChange={handleChangeLabel} autoFocus={true} /> | ||
| <ProbabilitySelector | ||
| exactPercentages={exactPercentages} | ||
| edgeLabels={edgeLabels} | ||
| onChange={setExactPercentages} /> | ||
| <div className="nodeModalButtons"> | ||
| <button type="submit">Save</button> | ||
| <button onClick={onCancel}>Cancel</button> | ||
| </div> | ||
| </form> | ||
| </div> | ||
| </div> | ||
| </> | ||
| ); | ||
| }; |
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