136 lines
4.0 KiB
TypeScript
136 lines
4.0 KiB
TypeScript
import { MouseEvent } from 'react';
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import ReactFlow, {
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addEdge,
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MiniMap,
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Controls,
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Background,
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ReactFlowInstance,
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EdgeTypes,
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Connection,
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Edge,
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MarkerType,
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Node,
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useNodesState,
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useEdgesState,
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} from 'react-flow-renderer';
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import CustomEdge from './CustomEdge';
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import CustomEdge2 from './CustomEdge2';
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const onInit = (reactFlowInstance: ReactFlowInstance) => reactFlowInstance.fitView();
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const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
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const onNodeClick = (_: MouseEvent, node: Node) => console.log('click', node);
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const initialNodes: Node[] = [
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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: '9', type: 'output', data: { label: 'Output 9' }, position: { x: 675, y: 500 } },
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];
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const initialEdges: Edge[] = [
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{ id: 'e1-2', source: '1', target: '2', label: 'bezier edge (default)', className: 'normal-edge' },
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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: 'e5-7',
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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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labelBgPadding: [8, 4],
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labelBgBorderRadius: 4,
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labelBgStyle: { fill: '#FFCC00', color: '#fff', fillOpacity: 0.7 },
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markerEnd: {
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type: MarkerType.ArrowClosed,
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},
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},
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{
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id: 'e5-8',
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source: '5',
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target: '8',
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type: 'custom',
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data: { text: 'custom edge' },
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},
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{
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id: 'e5-9',
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source: '5',
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target: '9',
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type: 'custom2',
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data: { text: 'custom edge 2' },
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},
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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: (
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<>
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<tspan>i am using</tspan>
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<tspan dy={10} x={0}>
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{'<tspan>'}
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</tspan>
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</>
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),
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labelStyle: { fill: 'red', fontWeight: 700 },
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style: { stroke: '#ffcc00' },
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markerEnd: {
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type: MarkerType.Arrow,
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color: '#FFCC00',
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markerUnits: 'userSpaceOnUse',
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width: 20,
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height: 20,
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strokeWidth: 2,
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},
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markerStart: {
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type: MarkerType.ArrowClosed,
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color: '#FFCC00',
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orient: 'auto-start-reverse',
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markerUnits: 'userSpaceOnUse',
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width: 20,
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height: 20,
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},
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},
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];
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const edgeTypes: EdgeTypes = {
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custom: CustomEdge,
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custom2: CustomEdge2,
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};
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const EdgesFlow = () => {
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const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
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const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
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const onConnect = (params: Connection | Edge) => setEdges((eds) => addEdge(params, eds));
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return (
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<ReactFlow
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nodes={nodes}
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edges={edges}
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onNodesChange={onNodesChange}
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onEdgesChange={onEdgesChange}
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onNodeClick={onNodeClick}
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onConnect={onConnect}
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onNodeDragStop={onNodeDragStop}
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onInit={onInit}
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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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