Files
xyflow/example/src/Provider/index.js

46 lines
1.5 KiB
JavaScript

import React, { useState } from 'react';
import ReactFlow, { ReactFlowProvider, addEdge, removeElements, Controls } from 'react-flow-renderer';
import Sidebar from './Sidebar';
import './provider.css';
const onElementClick = (event, element) => console.log('click', element);
const onLoad = (reactFlowInstance) => console.log('flow loaded:', reactFlowInstance);
const initialElements = [
{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 } },
{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
{ id: 'e1-2', source: '1', target: '2', animated: true },
{ id: 'e1-3', source: '1', target: '3' },
];
const ProviderFlow = () => {
const [elements, setElements] = useState(initialElements);
const onConnect = (params) => setElements((els) => addEdge(params, els));
const onElementsRemove = (elementsToRemove) => setElements((els) => removeElements(elementsToRemove, els));
return (
<div className="providerflow">
<ReactFlowProvider>
<Sidebar />
<div className="reactflow-wrapper">
<ReactFlow
elements={elements}
onElementClick={onElementClick}
onConnect={onConnect}
onElementsRemove={onElementsRemove}
onLoad={onLoad}
>
<Controls />
</ReactFlow>
</div>
</ReactFlowProvider>
</div>
);
};
export default ProviderFlow;