diff --git a/examples/react/src/App/routes.ts b/examples/react/src/App/routes.ts
index 52f80979..d781ff4d 100644
--- a/examples/react/src/App/routes.ts
+++ b/examples/react/src/App/routes.ts
@@ -59,6 +59,7 @@ import DevTools from '../examples/DevTools';
import Redux from '../examples/Redux';
import MovingHandles from '../examples/MovingHandles';
import DetachedHandle from '../examples/DetachedHandle';
+import Middlewares from '../examples/Middlewares';
export interface IRoute {
name: string;
@@ -232,6 +233,11 @@ const routes: IRoute[] = [
path: 'layouting',
component: Layouting,
},
+ {
+ name: 'Middlewares',
+ path: 'middlewares',
+ component: Middlewares,
+ },
{
name: 'Multi setNodes',
path: 'multi-setnodes',
diff --git a/examples/react/src/examples/Middlewares/index.tsx b/examples/react/src/examples/Middlewares/index.tsx
new file mode 100644
index 00000000..b3950b3d
--- /dev/null
+++ b/examples/react/src/examples/Middlewares/index.tsx
@@ -0,0 +1,125 @@
+import { useCallback } from 'react';
+import {
+ ReactFlow,
+ MiniMap,
+ Background,
+ BackgroundVariant,
+ Controls,
+ ReactFlowProvider,
+ Node,
+ Edge,
+ useReactFlow,
+ Panel,
+ useNodesState,
+ useEdgesState,
+ addEdge,
+ Connection,
+ useNodeChangeMiddleware,
+ NodeChange,
+} from '@xyflow/react';
+import { initialNodes, initialEdges } from '../CancelConnection/data';
+
+const a = { id: 'a', data: { label: 'A' }, position: { x: 250, y: 5 } };
+const b = { id: 'b', data: { label: 'B' }, position: { x: 100, y: 100 } };
+const c = { id: 'c', data: { label: 'C' }, position: { x: 400, y: 100 } };
+
+function RestrictExtent({
+ minX = -Infinity,
+ minY = -Infinity,
+ maxX = Infinity,
+ maxY = Infinity,
+}: {
+ minX?: number;
+ minY?: number;
+ maxX?: number;
+ maxY?: number;
+}) {
+ useNodeChangeMiddleware(
+ useCallback(
+ (changes: NodeChange[]) => {
+ return changes.map((change) => {
+ const { type } = change;
+ if (type === 'position') {
+ const { position } = change;
+ if (position) {
+ position.x = Math.min(Math.max(position.x, minX), maxX);
+ position.y = Math.min(Math.max(position.y, minY), maxY);
+ change.position = position;
+ }
+ } else if (type === 'add' || type === 'replace') {
+ const { item } = change;
+ if (item) {
+ item.position.x = Math.min(Math.max(item.position.x, minX), maxX);
+ item.position.y = Math.min(Math.max(item.position.y, minY), maxY);
+ change.item = item;
+ }
+ }
+
+ return change;
+ });
+ },
+ [minX, minY, maxX, maxY]
+ )
+ );
+
+ return null;
+}
+
+const SetNotesBatchingFlow = () => {
+ const { setNodes, updateNode } = useReactFlow();
+
+ const [nodes, , onNodesChange] = useNodesState(initialNodes);
+ const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
+ const onConnect = useCallback((params: Connection | Edge) => setEdges((eds) => addEdge(params, eds)), [setEdges]);
+
+ const triggerMultipleSetNodes = useCallback(() => {
+ setNodes([a]);
+ setNodes((nodes) => [...nodes, b]);
+ setNodes((nodes) => [...nodes, c]);
+ setNodes((nodes) =>
+ nodes.map((node) =>
+ node.id === 'a' ? { ...node, position: { x: node.position.x + 2000, y: node.position.y + 20 } } : node
+ )
+ );
+ }, []);
+
+ const triggerMultipleUpdateNodes = useCallback(() => {
+ triggerMultipleSetNodes();
+ updateNode('a', (a) => ({ position: { x: a.position.x + 20, y: a.position.y + 20 } }));
+ updateNode('b', (b) => ({ position: { x: b.position.x + 20, y: b.position.y + 20 } }));
+ updateNode('c', (c) => ({ position: { x: c.position.x + 20, y: c.position.y + 20 } }));
+ updateNode('a', (a) => ({ data: { ...a.data, label: `A ${Date.now()}` } }));
+ updateNode('b', (b) => ({ data: { ...b.data, label: `B ${Date.now()}` } }));
+ updateNode('c', (c) => ({ data: { ...c.data, label: `C ${Date.now()}` } }));
+ }, []);
+
+ return (
+
+
+
+
+
+
+
+
+
+
+ );
+};
+
+export default function App() {
+ return (
+
+
+
+ );
+}
diff --git a/examples/react/src/examples/Overview/index.tsx b/examples/react/src/examples/Overview/index.tsx
index 8e6a3441..7add02f0 100644
--- a/examples/react/src/examples/Overview/index.tsx
+++ b/examples/react/src/examples/Overview/index.tsx
@@ -193,37 +193,6 @@ const nodeColor = (n: Node): string => {
return '#fff';
};
-function RestrictExtent({
- minX = -Infinity,
- minY = -Infinity,
- maxX = Infinity,
- maxY = Infinity,
-}: {
- minX?: number;
- minY?: number;
- maxX?: number;
- maxY?: number;
-}) {
- useNodeChangeMiddleware(
- useCallback(
- (changes: NodeChange[]) => {
- return changes.map((change) => {
- if (change.type === 'position' && change.position) {
- const { position } = change;
- position.x = Math.min(Math.max(position.x, minX), maxX);
- position.y = Math.min(Math.max(position.y, minY), maxY);
- change.position = position;
- }
- return change;
- });
- },
- [minX, minY, maxX, maxY]
- )
- );
-
- return null;
-}
-
const OverviewFlow = () => {
const [nodes, , onNodesChange] = useNodesState(initialNodes);
const [edges, setEdges, onEdgesChange] = useEdgesState(initialEdges);
@@ -267,9 +236,8 @@ const OverviewFlow = () => {
maxZoom={Infinity}
onBeforeDelete={onBeforeDelete}
onDelete={onDelete}
- // onPaneMouseMove={onPaneMouseMove}
+ onPaneMouseMove={onPaneMouseMove}
>
-
diff --git a/packages/react/src/components/BatchProvider/index.tsx b/packages/react/src/components/BatchProvider/index.tsx
index d70d6fa8..28f3aa4b 100644
--- a/packages/react/src/components/BatchProvider/index.tsx
+++ b/packages/react/src/components/BatchProvider/index.tsx
@@ -53,8 +53,6 @@ export function BatchProvider[];
- console.log('this workds');
-
for (const middleware of nodeChangeMiddleware.values()) {
changes = middleware(changes);
}