Files
xyflow/example/src_oldapi/SaveRestore/index.tsx
T

38 lines
1.1 KiB
TypeScript

import React, { useState } from 'react';
import ReactFlow, {
ReactFlowProvider,
removeElements,
addEdge,
Elements,
Connection,
Edge,
OnLoadParams,
} from 'react-flow-renderer';
import Controls from './Controls';
import './save.css';
const initialElements: Elements = [
{ id: '1', data: { label: 'Node 1' }, position: { x: 100, y: 100 } },
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 200 } },
{ id: 'e1-2', source: '1', target: '2' },
];
const SaveRestore = () => {
const [rfInstance, setRfInstance] = useState<OnLoadParams>();
const [elements, setElements] = useState<Elements>(initialElements);
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
return (
<ReactFlowProvider>
<ReactFlow elements={elements} onElementsRemove={onElementsRemove} onConnect={onConnect} onLoad={setRfInstance}>
<Controls rfInstance={rfInstance} setElements={setElements} />
</ReactFlow>
</ReactFlowProvider>
);
};
export default SaveRestore;