chore(examples): update nuxt example

examples/nuxt3/app.vue

@@ -3,6 +3,7 @@
 </template>
 
 <style>
+@import './style.css';
 @import '@vue-flow/core/dist/style.css';
 @import '@vue-flow/core/dist/theme-default.css';
 
@@ -18,7 +19,5 @@ body,
   font-family: 'JetBrains Mono', monospace;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
-  text-align: center;
-  color: #2c3e50;
 }
 </style>

examples/nuxt3/components/Flow.vue

@@ -0,0 +1,125 @@
+<script setup>
+import { ref } from 'vue'
+import { VueFlow, useVueFlow } from '@vue-flow/core'
+import { Background } from '@vue-flow/background'
+import { ControlButton, Controls } from '@vue-flow/controls'
+import { MiniMap } from '@vue-flow/minimap'
+import { initialEdges, initialNodes } from './initial-elements.js'
+import Icon from './Icon.vue'
+
+/**
+ * useVueFlow provides all event handlers and store properties
+ * You can pass the composable an object that has the same properties as the VueFlow component props
+ */
+const { onPaneReady, onNodeDragStop, onConnect, addEdges, setViewport, toObject } = useVueFlow()
+
+const nodes = ref(initialNodes)
+
+const edges = ref(initialEdges)
+
+// our dark mode toggle flag
+const dark = ref(false)
+
+/**
+ * This is a Vue Flow event-hook which can be listened to from anywhere you call the composable, instead of only on the main component
+ * Any event that is available as `@event-name` on the VueFlow component is also available as `onEventName` on the composable and vice versa
+ *
+ * onPaneReady is called when viewpane & nodes have visible dimensions
+ */
+onPaneReady(({ fitView }) => {
+  fitView()
+})
+
+/**
+ * onNodeDragStop is called when a node is done being dragged
+ *
+ * Node drag events provide you with:
+ * 1. the event object
+ * 2. the nodes array (if multiple nodes are dragged)
+ * 3. the node that initiated the drag
+ * 4. any intersections with other nodes
+ */
+onNodeDragStop(({ event, nodes, node, intersections }) => {
+  console.log('Node Drag Stop', { event, nodes, node, intersections })
+})
+
+/**
+ * onConnect is called when a new connection is created.
+ *
+ * You can add additional properties to your new edge (like a type or label) or block the creation altogether by not calling `addEdges`
+ */
+onConnect((connection) => {
+  addEdges(connection)
+})
+
+/**
+ * To update a node or multiple nodes, you can
+ * 1. Mutate the node objects *if* you're using `v-model`
+ * 2. Use the `updateNode` method (from `useVueFlow`) to update the node(s)
+ * 3. Create a new array of nodes and pass it to the `nodes` ref
+ */
+function updatePos() {
+  nodes.value = nodes.value.map((node) => {
+    return {
+      ...node,
+      position: {
+        x: Math.random() * 400,
+        y: Math.random() * 400,
+      },
+    }
+  })
+}
+
+/**
+ * toObject transforms your current graph data to an easily persist-able object
+ */
+function logToObject() {
+  console.log(toObject())
+}
+
+/**
+ * Resets the current viewport transformation (zoom & pan)
+ */
+function resetTransform() {
+  setViewport({ x: 0, y: 0, zoom: 1 })
+}
+
+function toggleDarkMode() {
+  dark.value = !dark.value
+}
+</script>
+
+<template>
+  <VueFlow
+    :nodes="nodes"
+    :edges="edges"
+    :class="{ dark }"
+    class="basicflow"
+    :default-viewport="{ zoom: 1.5 }"
+    :min-zoom="0.2"
+    :max-zoom="4"
+  >
+    <Background pattern-color="#aaa" :gap="16" />
+
+    <MiniMap />
+
+    <Controls position="top-right">
+      <ControlButton title="Reset Transform" @click="resetTransform">
+        <Icon name="reset" />
+      </ControlButton>
+
+      <ControlButton title="Shuffle Node Positions" @click="updatePos">
+        <Icon name="update" />
+      </ControlButton>
+
+      <ControlButton title="Toggle Dark Mode" @click="toggleDarkMode">
+        <Icon v-if="dark" name="sun" />
+        <Icon v-else name="moon" />
+      </ControlButton>
+
+      <ControlButton title="Log `toObject`" @click="logToObject">
+        <Icon name="log" />
+      </ControlButton>
+    </Controls>
+  </VueFlow>
+</template>

examples/nuxt3/components/Icon.vue

@@ -0,0 +1,38 @@
+<script setup>
+defineProps({
+  name: {
+    type: String,
+    required: true,
+  },
+})
+</script>
+
+<template>
+  <svg v-if="name === 'reset'" width="16" height="16" viewBox="0 0 32 32">
+    <path d="M18 28A12 12 0 1 0 6 16v6.2l-3.6-3.6L1 20l6 6l6-6l-1.4-1.4L8 22.2V16a10 10 0 1 1 10 10Z" />
+  </svg>
+
+  <svg v-if="name === 'update'" width="16" height="16" viewBox="0 0 24 24">
+    <path
+      d="M14 20v-2h2.6l-3.2-3.2l1.425-1.425L18 16.55V14h2v6Zm-8.6 0L4 18.6L16.6 6H14V4h6v6h-2V7.4Zm3.775-9.425L4 5.4L5.4 4l5.175 5.175Z"
+    />
+  </svg>
+
+  <svg v-if="name === 'sun'" width="16" height="16" viewBox="0 0 24 24">
+    <path
+      d="M12 17q-2.075 0-3.537-1.463Q7 14.075 7 12t1.463-3.538Q9.925 7 12 7t3.538 1.462Q17 9.925 17 12q0 2.075-1.462 3.537Q14.075 17 12 17ZM2 13q-.425 0-.712-.288Q1 12.425 1 12t.288-.713Q1.575 11 2 11h2q.425 0 .713.287Q5 11.575 5 12t-.287.712Q4.425 13 4 13Zm18 0q-.425 0-.712-.288Q19 12.425 19 12t.288-.713Q19.575 11 20 11h2q.425 0 .712.287q.288.288.288.713t-.288.712Q22.425 13 22 13Zm-8-8q-.425 0-.712-.288Q11 4.425 11 4V2q0-.425.288-.713Q11.575 1 12 1t.713.287Q13 1.575 13 2v2q0 .425-.287.712Q12.425 5 12 5Zm0 18q-.425 0-.712-.288Q11 22.425 11 22v-2q0-.425.288-.712Q11.575 19 12 19t.713.288Q13 19.575 13 20v2q0 .425-.287.712Q12.425 23 12 23ZM5.65 7.05L4.575 6q-.3-.275-.288-.7q.013-.425.288-.725q.3-.3.725-.3t.7.3L7.05 5.65q.275.3.275.7q0 .4-.275.7q-.275.3-.687.287q-.413-.012-.713-.287ZM18 19.425l-1.05-1.075q-.275-.3-.275-.712q0-.413.275-.688q.275-.3.688-.287q.412.012.712.287L19.425 18q.3.275.288.7q-.013.425-.288.725q-.3.3-.725.3t-.7-.3ZM16.95 7.05q-.3-.275-.287-.688q.012-.412.287-.712L18 4.575q.275-.3.7-.288q.425.013.725.288q.3.3.3.725t-.3.7L18.35 7.05q-.3.275-.7.275q-.4 0-.7-.275ZM4.575 19.425q-.3-.3-.3-.725t.3-.7l1.075-1.05q.3-.275.713-.275q.412 0 .687.275q.3.275.288.688q-.013.412-.288.712L6 19.425q-.275.3-.7.287q-.425-.012-.725-.287Z"
+    />
+  </svg>
+
+  <svg v-if="name === 'moon'" width="16" height="16" viewBox="0 0 24 24">
+    <path
+      d="M12 21q-3.75 0-6.375-2.625T3 12q0-3.75 2.625-6.375T12 3q.35 0 .688.025q.337.025.662.075q-1.025.725-1.637 1.887Q11.1 6.15 11.1 7.5q0 2.25 1.575 3.825Q14.25 12.9 16.5 12.9q1.375 0 2.525-.613q1.15-.612 1.875-1.637q.05.325.075.662Q21 11.65 21 12q0 3.75-2.625 6.375T12 21Z"
+    />
+  </svg>
+
+  <svg v-if="name === 'log'" width="16" height="16" viewBox="0 0 24 24">
+    <path
+      d="M20 19V7H4v12h16m0-16a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h16m-7 14v-2h5v2h-5m-3.42-4L5.57 9H8.4l3.3 3.3c.39.39.39 1.03 0 1.42L8.42 17H5.59l3.99-4Z"
+    />
+  </svg>
+</template>

examples/nuxt3/components/initial-elements.js

@@ -1,41 +1,16 @@
 import { MarkerType } from '@vue-flow/core'
 
-/**
- * You can pass elements together as a v-model value
- * or split them up into nodes and edges and pass them to the `nodes` and `edges` props of Vue Flow (or useVueFlow composable)
- */
-export const initialElements = [
-  {
-    id: '1',
-    type: 'input',
-    label: 'Node 1',
-    position: { x: 250, y: 5 },
-    class: 'light',
-  },
-  {
-    id: '2',
-    type: 'output',
-    label: 'Node 2',
-    position: { x: 100, y: 100 },
-    class: 'light',
-  },
+export const initialNodes = [
+  { id: '1', type: 'input', label: 'Node 1', position: { x: 250, y: 0 }, class: 'light' },
+  { id: '2', type: 'output', label: 'Node 2', position: { x: 100, y: 100 }, class: 'light' },
   { id: '3', label: 'Node 3', position: { x: 400, y: 100 }, class: 'light' },
   { id: '4', label: 'Node 4', position: { x: 150, y: 200 }, class: 'light' },
-  {
-    id: '5',
-    type: 'output',
-    label: 'Node 5',
-    position: { x: 300, y: 300 },
-    class: 'light',
-  },
+  { id: '5', type: 'output', label: 'Node 5', position: { x: 300, y: 300 }, class: 'light' },
+]
+
+export const initialEdges = [
   { id: 'e1-2', source: '1', target: '2', animated: true },
-  {
-    id: 'e1-3',
-    label: 'edge with arrowhead',
-    source: '1',
-    target: '3',
-    markerEnd: MarkerType.Arrow,
-  },
+  { id: 'e1-3', label: 'edge with arrowhead', source: '1', target: '3', markerEnd: MarkerType.ArrowClosed },
   {
     id: 'e4-5',
     type: 'step',
@@ -45,11 +20,5 @@ export const initialElements = [
     style: { stroke: 'orange' },
     labelBgStyle: { fill: 'orange' },
   },
-  {
-    id: 'e3-4',
-    type: 'smoothstep',
-    label: 'smoothstep-edge',
-    source: '3',
-    target: '4',
-  },
+  { id: 'e3-4', type: 'smoothstep', label: 'smoothstep-edge', source: '3', target: '4' },
 ]

examples/nuxt3/package.json

@@ -14,6 +14,6 @@
   },
   "devDependencies": {
     "@tooling/eslint-config": "workspace:*",
-    "nuxt": "^3.7.4"
+    "nuxt": "^3.10.2"
   }
 }

examples/nuxt3/pages/index.vue

@@ -1,5 +1,5 @@
 <template>
   <div style="height: 100%">
-    <BasicFlow />
+    <Flow />
   </div>
 </template>