update(examples): Add stress example

examples/Stress/StressExample.vue

@@ -0,0 +1,61 @@
+<script lang="ts" setup>
+import { CSSProperties } from 'vue'
+import { getElements } from './utils'
+import Flow, {
+  removeElements,
+  addEdge,
+  MiniMap,
+  isNode,
+  Controls,
+  Background,
+  OnLoadParams,
+  Elements,
+  Connection,
+  Edge,
+} from '~/index'
+
+const buttonWrapperStyles: CSSProperties = { position: 'absolute', right: 10, top: 10, zIndex: 4 }
+
+const onLoad = (flowInstance: OnLoadParams) => {
+  flowInstance.fitView()
+  console.log(flowInstance.getElements())
+}
+
+const initialElements: Elements = getElements(30, 30)
+const elements = ref(initialElements)
+
+const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value))
+const onElementsRemove = (elementsToRemove: Elements) => (elements.value = removeElements(elementsToRemove, elements.value))
+const updatePos = () => {
+  elements.value = elements.value.map((el) => {
+    if (isNode(el)) {
+      return {
+        ...el,
+        position: {
+          x: Math.random() * window.innerWidth,
+          y: Math.random() * window.innerHeight,
+        },
+      }
+    }
+
+    return el
+  })
+}
+
+const updateElements = () => {
+  const grid = Math.ceil(Math.random() * 10)
+  elements.value = getElements(grid, grid)
+}
+</script>
+<template>
+  <Flow :elements="elements" @load="onLoad" @elementsRemove="onElementsRemove" @connect="onConnect">
+    <MiniMap />
+    <Controls />
+    <Background />
+
+    <div :style="buttonWrapperStyles">
+      <button style="margin-right: 5px" @click="updatePos">change pos</button>
+      <button @click="updateElements">update elements</button>
+    </div>
+  </Flow>
+</template>

examples/Stress/utils.ts

@@ -0,0 +1,30 @@
+import { Elements } from '~/index'
+
+export function getElements(xElements = 10, yElements = 10): Elements {
+  const initialElements = []
+  let nodeId = 1
+  let recentNodeId = null
+
+  for (let y = 0; y < yElements; y++) {
+    for (let x = 0; x < xElements; x++) {
+      const position = { x: x * 100, y: y * 50 }
+      const data = { label: `Node ${nodeId}` }
+      const node = {
+        id: nodeId.toString(),
+        style: { width: 50, fontSize: 11 },
+        data,
+        position,
+      }
+      initialElements.push(node)
+
+      if (recentNodeId && nodeId <= xElements * yElements) {
+        initialElements.push({ id: `${x}-${y}`, source: recentNodeId.toString(), target: nodeId.toString() })
+      }
+
+      recentNodeId = nodeId
+      nodeId++
+    }
+  }
+
+  return initialElements as Elements
+}

examples/router.ts

@@ -73,6 +73,10 @@ export const routes: RouterOptions['routes'] = [
     path: '/save-restore',
     component: () => import('./SaveRestore/SaveRestoreExample.vue'),
   },
+  {
+    path: '/stress',
+    component: () => import('./Stress/StressExample.vue'),
+  },
 ]
 
 export const router = createRouter({