refactor(examples): switch examples from cra to nextjs

2022-07-19 17:23:26 +02:00
parent 62c417263c
commit be4dd6f1fa
86 changed files with 755 additions and 45859 deletions
@@ -0,0 +1,119 @@
+import React, { MouseEvent } from 'react';
+
+import ReactFlow, {
+  ReactFlowProvider,
+  Background,
+  BackgroundVariant,
+  Node,
+  Edge,
+  useReactFlow,
+} from '@react-flow/core';
+
+const onNodeDrag = (_: MouseEvent, node: Node) => console.log('drag', node);
+const onNodeDragStop = (_: MouseEvent, node: Node) =>
+  console.log('drag stop', node);
+const onNodeClick = (_: MouseEvent, node: Node) => console.log('click', node);
+
+const initialNodes: Node[] = [
+  {
+    id: '1',
+    type: 'input',
+    data: { label: 'Node 1' },
+    position: { x: 250, y: 5 },
+    className: 'light',
+  },
+  {
+    id: '2',
+    data: { label: 'Node 2' },
+    position: { x: 100, y: 100 },
+    className: 'light',
+  },
+  {
+    id: '3',
+    data: { label: 'Node 3' },
+    position: { x: 400, y: 100 },
+    className: 'light',
+  },
+  {
+    id: '4',
+    data: { label: 'Node 4' },
+    position: { x: 400, y: 200 },
+    className: 'light',
+  },
+];
+
+const initialEdges: Edge[] = [
+  { id: 'e1-2', source: '1', target: '2', animated: true },
+  { id: 'e1-3', source: '1', target: '3' },
+];
+
+const defaultEdgeOptions = { zIndex: 0 };
+
+const BasicFlow = () => {
+  const instance = useReactFlow();
+
+  const updatePos = () => {
+    instance.setNodes((nodes) =>
+      nodes.map((node) => {
+        node.position = {
+          x: Math.random() * 400,
+          y: Math.random() * 400,
+        };
+
+        return node;
+      })
+    );
+  };
+
+  const logToObject = () => console.log(instance.toObject());
+  const resetTransform = () => instance.setViewport({ x: 0, y: 0, zoom: 1 });
+
+  const toggleClassnames = () => {
+    instance.setNodes((nodes) =>
+      nodes.map((node) => {
+        node.className = node.className === 'light' ? 'dark' : 'light';
+
+        return node;
+      })
+    );
+  };
+
+  return (
+    <ReactFlow
+      defaultNodes={initialNodes}
+      defaultEdges={initialEdges}
+      onNodeClick={onNodeClick}
+      onNodeDragStop={onNodeDragStop}
+      onNodeDrag={onNodeDrag}
+      className='react-flow-basic-example'
+      minZoom={0.2}
+      maxZoom={4}
+      fitView
+      defaultEdgeOptions={defaultEdgeOptions}
+      selectNodesOnDrag={false}
+    >
+      <Background variant={BackgroundVariant.Lines} />
+
+      <div style={{ position: 'absolute', right: 10, top: 10, zIndex: 4 }}>
+        <button onClick={resetTransform} style={{ marginRight: 5 }}>
+          reset transform
+        </button>
+        <button onClick={updatePos} style={{ marginRight: 5 }}>
+          change pos
+        </button>
+        <button onClick={toggleClassnames} style={{ marginRight: 5 }}>
+          toggle classnames
+        </button>
+        <button onClick={logToObject}>toObject</button>
+      </div>
+    </ReactFlow>
+  );
+};
+
+export default function App() {
+  return (
+    <ReactFlowProvider>
+      <BasicFlow />
+    </ReactFlowProvider>
+  );
+}