feat(panzoom): add paneClickDistance prop

examples/react/src/App/routes.ts

@@ -1,6 +1,7 @@
 import Basic from '../examples/Basic';
 import Backgrounds from '../examples/Backgrounds';
 import ColorMode from '../examples/ColorMode';
+import ClickDistance from '../examples/ClickDistance';
 import ControlledUncontrolled from '../examples/ControlledUncontrolled';
 import ControlledViewport from '../examples/ControlledViewport';
 import CustomConnectionLine from '../examples/CustomConnectionLine';
@@ -85,6 +86,11 @@ const routes: IRoute[] = [
     path: 'cancel-connection',
     component: CancelConnection,
   },
+  {
+    name: 'Click Distance',
+    path: 'click-distance',
+    component: ClickDistance,
+  },
   {
     name: 'Controlled/Uncontrolled',
     path: 'controlled-uncontrolled',

examples/react/src/examples/ClickDistance/index.tsx

@@ -0,0 +1,72 @@
+import { useCallback, useState } from 'react';
+import { ReactFlow, addEdge, Node, Connection, Edge, useNodesState, useEdgesState, Panel } from '@xyflow/react';
+
+const initNodes: Node[] = [
+  {
+    id: '1a',
+    type: 'input',
+    data: { label: 'Node 1' },
+    position: { x: 250, y: 5 },
+    className: 'light',
+    ariaLabel: 'Input Node 1',
+  },
+  {
+    id: '2a',
+    data: { label: 'Node 2' },
+    position: { x: 100, y: 100 },
+    className: 'light',
+    ariaLabel: 'Default Node 2',
+  },
+  {
+    id: '3a',
+    data: { label: 'Node 3' },
+    position: { x: 400, y: 100 },
+    className: 'light',
+  },
+  {
+    id: '4a',
+    data: { label: 'Node 4' },
+    position: { x: 400, y: 200 },
+    className: 'light',
+  },
+];
+
+const initEdges: Edge[] = [
+  { id: 'e1-2', source: '1a', target: '2a', ariaLabel: undefined },
+  { id: 'e1-3', source: '1a', target: '3a' },
+];
+
+const onPaneClick = () => console.log('pane click');
+
+const BasicFlow = () => {
+  const [nodes, setNodes, onNodesChange] = useNodesState(initNodes);
+  const [edges, setEdges, onEdgesChange] = useEdgesState(initEdges);
+  const [paneClickDistance, setPaneClickDistance] = useState(0);
+
+  const onConnect = useCallback((params: Connection | Edge) => setEdges((eds) => addEdge(params, eds)), [setEdges]);
+
+  return (
+    <ReactFlow
+      nodes={nodes}
+      edges={edges}
+      onNodesChange={onNodesChange}
+      onEdgesChange={onEdgesChange}
+      onConnect={onConnect}
+      paneClickDistance={paneClickDistance}
+      onPaneClick={onPaneClick}
+    >
+      <Panel position="top-right">
+        <input
+          type="range"
+          min={0}
+          max={100}
+          value={paneClickDistance}
+          onChange={(evt) => setPaneClickDistance(+evt.target.value)}
+        />
+        click distance: {paneClickDistance}
+      </Panel>
+    </ReactFlow>
+  );
+};
+
+export default BasicFlow;