feat(nodes): connect on touch device

example/src/TouchDevice/index.tsx

@@ -0,0 +1,49 @@
+import { useCallback } from 'react';
+import ReactFlow, {
+  Node,
+  Edge,
+  useNodesState,
+  useEdgesState,
+  Position,
+  Connection,
+  addEdge,
+} from 'react-flow-renderer';
+
+import './touch-device.css';
+
+const initialNodes: Node[] = [
+  {
+    id: '1',
+    data: { label: 'Node 1' },
+    position: { x: 100, y: 100 },
+    sourcePosition: Position.Right,
+    targetPosition: Position.Left,
+  },
+  {
+    id: '2',
+    data: { label: 'Node 2' },
+    position: { x: 300, y: 100 },
+    sourcePosition: Position.Right,
+    targetPosition: Position.Left,
+  },
+];
+
+const initialEdges: Edge[] = [];
+
+const TouchDeviceFlow = () => {
+  const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
+  const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
+  const onConnect = useCallback((connection: Connection) => setEdges((eds) => addEdge(connection, eds)), []);
+
+  return (
+    <ReactFlow
+      nodes={nodes}
+      edges={edges}
+      onConnect={onConnect}
+      onNodesChange={onNodesChange}
+      onEdgesChange={onEdgesChange}
+    />
+  );
+};
+
+export default TouchDeviceFlow;

example/src/TouchDevice/touch-device.css

@@ -0,0 +1,19 @@
+.react-flow .react-flow__handle {
+  width: 20px;
+  height: 20px;
+  border-radius: 3px;
+  background-color: #9f7aea;
+}
+
+.react-flow__handle.connecting {
+  animation: bounce 1600ms infinite ease-out;
+}
+
+@keyframes bounce {
+  0% {
+    transform: translate(0, -50%) scale(1);
+  }
+  50% {
+    transform: translate(0, -50%) scale(1.1);
+  }
+}

example/src/index.tsx

@@ -11,6 +11,7 @@ import Layouting from './Layouting';
 import NestedNodes from './NestedNodes';
 import Hidden from './Hidden';
 import UpdatableEdge from './UpdatableEdge';
+import TouchDevice from './TouchDevice';
 
 import './index.css';
 
@@ -51,6 +52,10 @@ const routes = [
     path: '/updatable-edge',
     component: UpdatableEdge,
   },
+  {
+    path: '/touch-device',
+    component: TouchDevice,
+  },
 ];
 
 const Header = withRouter(({ history, location }) => {