feat(example): add sidebar to provider example

example/src/Provider/index.js

@@ -1,8 +1,11 @@
 import React, { useState } from 'react';
+import ReactFlow, { ReactFlowProvider, addEdge, removeElements } from 'react-flow-renderer';
 
-import ReactFlow, { addEdge, ReactFlowProvider } from 'react-flow-renderer';
+import Sidebar from './Sidebar';
 
-const onElementClick = element => console.log('click', element);
+import './provider.css';
+
+const onElementClick = (element) => console.log('click', element);
 
 const initialElements = [
   { id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },
@@ -10,22 +13,29 @@ const initialElements = [
   { id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
   { id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
   { id: 'e1-2', source: '1', target: '2', animated: true },
-  { id: 'e1-3', source: '1', target: '3' }
+  { id: 'e1-3', source: '1', target: '3' },
 ];
 
 const ProviderFlow = () => {
   const [elements, setElements] = useState(initialElements);
-  const onConnect = (params) => setElements(els => addEdge(params, els));
+  const onConnect = (params) => setElements((els) => addEdge(params, els));
+  const onElementsRemove = (elementsToRemove) => setElements((els) => removeElements(elementsToRemove, els));
 
   return (
-    <ReactFlowProvider>
-      <ReactFlow
-        elements={elements}
-        onElementClick={onElementClick}
-        onConnect={onConnect}
-      />
-    </ReactFlowProvider>
+    <div className="providerflow">
+      <ReactFlowProvider>
+        <Sidebar />
+        <div className="reactflow-wrapper">
+          <ReactFlow
+            elements={elements}
+            onElementClick={onElementClick}
+            onConnect={onConnect}
+            onElementsRemove={onElementsRemove}
+          />
+        </div>
+      </ReactFlowProvider>
+    </div>
   );
-}
+};
 
 export default ProviderFlow;