update(examples): Use vmodel for custom node

* use v-model for save & restore example

Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>

examples/SaveRestore/Controls.vue

@@ -1,5 +1,5 @@
 <script lang="ts" setup>
-import { useZoomPanHelper, FlowInstance, FlowExportObject, Node } from '~/index'
+import { useZoomPanHelper, FlowExportObject, Node, useVueFlow } from '~/index'
 
 const flowKey = 'example-flow'
 const state = useStorage(flowKey, {
@@ -12,15 +12,11 @@ const getNodeId = () => `randomnode_${+new Date()}`
 
 const { transform } = useZoomPanHelper()
 
-type ControlsProps = {
-  flowInstance?: FlowInstance
-}
-
-const props = defineProps<ControlsProps>()
+const flow = useVueFlow()
 const emit = defineEmits(['restore', 'add'])
 
 const onSave = () => {
-  if (props.flowInstance) state.value = props.flowInstance.toObject()
+  if (flow.instance) state.value = flow.instance.toObject()
 }
 
 const onRestore = () => {
@@ -39,7 +35,7 @@ const onAdd = () => {
     data: { label: 'Added node' },
     position: { x: Math.random() * window.innerWidth - 100, y: Math.random() * window.innerHeight },
   } as Node
-  emit('add', newNode)
+  flow.addElements([newNode])
 }
 </script>
 <template>

examples/SaveRestore/SaveRestoreExample.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import Controls from './Controls.vue'
-import { VueFlow, addEdge, Connection, Node, Edge, Elements, FlowInstance, removeElements } from '~/index'
+import { VueFlow, addEdge, Connection, Edge, Elements, removeElements } from '~/index'
 
 import './save.css'
 
@@ -11,16 +11,13 @@ const initialElements: Elements = [
 ]
 
 const elements = ref(initialElements)
-const flowInstance = ref()
 
 const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value))
 const onElementsRemove = (elementsToRemove: Elements) => (elements.value = removeElements(elementsToRemove, elements.value))
-const onLoad = (instance: FlowInstance) => (flowInstance.value = instance)
 const onRestore = (els: Elements) => (elements.value = els)
-const onAdd = (el: Node) => (elements.value = elements.value.concat(el))
 </script>
 <template>
-  <VueFlow :elements="elements" @elements-remove="onElementsRemove" @connect="onConnect" @load="onLoad">
-    <Controls :flow-instance="flowInstance" @restore="onRestore" @add="onAdd" />
+  <VueFlow v-model="elements" storage-key="vue-flow-123" @elements-remove="onElementsRemove" @connect="onConnect">
+    <Controls @restore="onRestore" />
   </VueFlow>
 </template>