131 lines
2.5 KiB
TypeScript
131 lines
2.5 KiB
TypeScript
import { useCallback } from 'react';
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import {
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ReactFlow,
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addEdge,
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useEdgesState,
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useNodesState,
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Background,
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Controls,
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type Connection,
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type Edge,
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type Node,
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Position,
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} from '@xyflow/react';
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import CustomNode from './CustomNode';
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import '@xyflow/react/dist/style.css';
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const nodeSize = {
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width: 100,
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height: 40,
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};
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const initialNodes: Node[] = [
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{
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id: '1',
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type: 'input',
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data: { label: 'Node 1' },
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position: { x: 250, y: 5 },
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size: nodeSize,
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handles: [
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{
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type: 'source',
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position: Position.Bottom,
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x: nodeSize.width * 0.5,
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y: nodeSize.height,
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},
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],
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},
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{
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id: '2',
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data: { label: 'Node 2' },
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position: { x: 100, y: 100 },
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size: nodeSize,
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handles: [
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{
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type: 'source',
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position: Position.Bottom,
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x: nodeSize.width * 0.5,
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y: nodeSize.height,
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width: 1,
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height: 1,
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},
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{
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type: 'target',
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position: Position.Top,
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x: nodeSize.width * 0.5,
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y: 0,
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width: 1,
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height: 1,
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},
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],
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},
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{
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id: '3',
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data: { label: 'Node 3' },
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position: { x: 400, y: 100 },
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size: nodeSize,
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handles: [
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{
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type: 'source',
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position: Position.Bottom,
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x: nodeSize.width * 0.5,
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y: nodeSize.height,
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width: 1,
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height: 1,
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},
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{
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type: 'target',
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position: Position.Top,
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x: nodeSize.width * 0.5,
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y: 0,
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width: 1,
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height: 1,
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},
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],
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},
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{
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id: '4',
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data: { label: 'Node 4' },
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position: { x: 400, y: 200 },
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type: 'custom',
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},
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];
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const initialEdges: Edge[] = [
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{ id: 'e1-2', source: '1', target: '2', animated: true },
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{ id: 'e1-3', source: '1', target: '3', animated: true },
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];
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const nodeTypes = {
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custom: CustomNode,
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};
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function Flow() {
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const [nodes, , onNodesChange] = useNodesState(initialNodes);
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const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
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const onConnect = useCallback((params: Connection | Edge) => setEdges((eds) => addEdge(params, eds)), [setEdges]);
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return (
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<div style={{ width: 700, height: 400 }}>
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<ReactFlow
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nodes={nodes}
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onNodesChange={onNodesChange}
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edges={edges}
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onEdgesChange={onEdgesChange}
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onConnect={onConnect}
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nodeTypes={nodeTypes}
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fitView
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width={700}
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height={400}
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>
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<Background />
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<Controls />
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</ReactFlow>
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</div>
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);
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}
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export default Flow;
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