refactor(examples): rename graph to flow

2020-05-14 10:57:08 +02:00
parent 267187b8d1
commit 0b7354610e
7 changed files with 42 additions and 21 deletions
@@ -0,0 +1,85 @@
+import React, { useState } from 'react';
+
+import ReactFlow, { removeElements, addEdge, MiniMap, Controls } from 'react-flow-renderer';
+
+const onNodeDragStop = node => console.log('drag stop', node);
+const onElementClick = element => console.log('click', element);
+const onLoad = (graph) => {
+  console.log('graph loaded:', graph);
+  graph.fitView();
+};
+
+const initialElements = [
+  { id: '1', type: 'input', data: { label: <>Welcome to <strong>React Flow!</strong></> }, position: { x: 250, y: 0 } },
+  { id: '2', data: { label: <>This is a <strong>default node</strong></> }, position: { x: 100, y: 100 } },
+  {
+    id: '3', data: { label: <>This one has a <strong>custom style</strong></> }, position: { x: 400, y: 100 },
+    style: { background: '#eee', color: '#222', border: '1px solid #bbb', width: 180 },
+  },
+  {
+    id: '4', position: { x: 250, y: 200 },
+    data: { label: <>You can find the docs on <a href="https://github.com/wbkd/react-flow" target="_blank" rel="noopener noreferrer">Github</a></> }
+  },
+  { id: '5', data: { label: <>Or check out the other <strong>examples</strong></> }, position: { x: 250, y: 300 } },
+  { id: '6', type: 'output', data: { label: <>An <strong>output node</strong></> }, position: { x: 100, y: 450 } },
+  { id: '7', type: 'output', data: { label: 'Another output node' }, position: { x: 400, y: 450 } },
+  { id: 'e1-2', source: '1', target: '2', label: 'this is an edge label' },
+  { id: 'e1-3', source: '1', target: '3' },
+  { id: 'e3-4', source: '3', target: '4', animated: true, label: 'animated edge' },
+  { id: 'e4-5', source: '4', target: '5', },
+  { id: 'e5-6', source: '5', target: '6', },
+  { id: 'e5-7', source: '5', target: '7', type: 'step', label: 'a step edge', labelStyle: { fill: 'red', fontWeight: 700 } },
+];
+
+const OverviewFlow = () => {
+  const [elements, setElements] = useState(initialElements);
+
+  const addRandomNode = () => {
+    setElements(els => els.concat({
+      id: (els.length + 1).toString(),
+      data: { label: 'Added node' },
+      position: { x: Math.random() * window.innerWidth, y: Math.random() * window.innerHeight }
+    }));
+  };
+  const onElementsRemove = (elementsToRemove) => setElements(els => removeElements(elementsToRemove, els));
+  const onConnect = (params) => setElements(els => addEdge(params, els));
+
+  return (
+    <ReactFlow
+      elements={elements}
+      onElementClick={onElementClick}
+      onElementsRemove={onElementsRemove}
+      onConnect={onConnect}
+      onNodeDragStop={onNodeDragStop}
+      style={{ width: '100%', height: '100%' }}
+      onLoad={onLoad}
+      connectionLineStyle={{ stroke: '#ddd', strokeWidth: 2 }}
+      connectionLineType="bezier"
+      backgroundColor="#888"
+      backgroundGap={16}
+      snapToGrid={true}
+      snapGrid={[16, 16]}
+    >
+      <MiniMap
+        nodeColor={n => {
+          if (n.type === 'input') return 'blue';
+          if (n.type === 'output') return 'green';
+          if (n.type === 'default') return 'red';
+
+          return '#FFCC00';
+        }}
+      />
+      <Controls />
+      <button
+        type="button"
+        onClick={addRandomNode}
+        style={{ position: 'absolute', right: 10, top: 30, zIndex: 4 }}
+        className="richexample__add"
+      >
+        add node
+      </button>
+    </ReactFlow>
+  );
+}
+
+export default OverviewFlow;