76 lines
2.9 KiB
JavaScript
76 lines
2.9 KiB
JavaScript
import React, { useState } from 'react';
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import ReactFlow, { removeElements, addEdge, MiniMap, Controls, Background } from 'react-flow-renderer';
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import CustomEdge from './CustomEdge';
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const onNodeDragStop = (node) => console.log('drag stop', node);
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const onElementClick = (element) => console.log('click', element);
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const onLoad = (reactFlowInstance) => reactFlowInstance.fitView();
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const initialElements = [
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{ id: '1', type: 'input', data: { label: 'Input 1' }, position: { x: 250, y: 0 } },
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{ id: '2', data: { label: 'Node 2' }, position: { x: 150, y: 100 } },
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{ id: '2a', data: { label: 'Node 2a' }, position: { x: 0, y: 180 } },
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{ id: '3', data: { label: 'Node 3' }, position: { x: 250, y: 200 } },
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{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 300 } },
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{ id: '3a', data: { label: 'Node 3a' }, position: { x: 150, y: 300 } },
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{ id: '5', data: { label: 'Node 5' }, position: { x: 250, y: 400 } },
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{ id: '6', type: 'output', data: { label: 'Output 6' }, position: { x: 50, y: 550 } },
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{ id: '7', type: 'output', data: { label: 'Output 7' }, position: { x: 250, y: 550 } },
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{ id: '8', type: 'output', data: { label: 'Output 8' }, position: { x: 525, y: 600 } },
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{ id: 'e1-2', source: '1', target: '2', label: 'bezier edge (default)' },
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{ id: 'e2-2a', source: '2', target: '2a', type: 'smoothstep', label: 'smoothstep edge' },
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{ id: 'e2-3', source: '2', target: '3', type: 'step', label: 'step edge' },
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{ id: 'e3-4', source: '3', target: '4', type: 'straight', label: 'straight edge' },
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{ id: 'e3-3a', source: '3', target: '3a', type: 'straight', label: 'label only edge', style: { stroke: 'none' } },
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{ id: 'e3-5', source: '4', target: '5', animated: true, label: 'animated styled edge', style: { stroke: 'red' } },
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{
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id: 'e5-6',
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source: '5',
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target: '6',
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label: 'styled label',
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labelStyle: { fill: 'red', fontWeight: 700 },
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arrowHeadType: 'arrow',
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},
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{
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id: 'e5-7',
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source: '5',
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target: '7',
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label: 'label with styled bg',
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labelBgStyle: { fill: '#eee', fillOpacity: 0.7 },
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arrowHeadType: 'arrowclosed',
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},
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{ id: 'e5-8', source: '5', target: '8', type: 'custom', data: { text: 'custom edge' } },
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];
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const edgeTypes = {
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custom: CustomEdge,
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};
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const EdgesFlow = () => {
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const [elements, setElements] = useState(initialElements);
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const onElementsRemove = (elementsToRemove) => setElements((els) => removeElements(elementsToRemove, els));
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const onConnect = (params) => setElements((els) => addEdge(params, els));
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return (
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<ReactFlow
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elements={elements}
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onElementClick={onElementClick}
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onElementsRemove={onElementsRemove}
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onConnect={onConnect}
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onNodeDragStop={onNodeDragStop}
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onLoad={onLoad}
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snapToGrid={true}
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edgeTypes={edgeTypes}
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>
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<MiniMap />
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<Controls />
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<Background />
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</ReactFlow>
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);
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};
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export default EdgesFlow;
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