update: Flow instance provides update node internals func

* Rename onLoadParams to FlowInstance
* Pass update node internals to instance

examples/Basic/Basic.vue

@@ -7,7 +7,7 @@ import Flow, {
   Edge,
   Elements,
   FlowElement,
-  OnLoadParams,
+  FlowInstance,
   addEdge,
   isNode,
   removeElements,
@@ -24,11 +24,11 @@ const elements = ref<Elements>([
   { id: 'e1-2', source: '1', target: '2', animated: true },
   { id: 'e1-3', source: '1', target: '3' },
 ] as Elements)
-const rfInstance = ref<OnLoadParams | null>(null)
+const rfInstance = ref<FlowInstance | null>(null)
 const onElementsRemove = (elementsToRemove: Elements) =>
   (elements.value = removeElements(elementsToRemove, elements.value as Elements))
 const onConnect = (params: Edge | Connection) => (elements.value = addEdge(params, elements.value as Elements))
-const onLoad = (flowInstance: OnLoadParams) => {
+const onLoad = (flowInstance: FlowInstance) => {
   flowInstance.fitView({ padding: 0.1 })
   rfInstance.value = flowInstance
 }

examples/CustomNode/CustomNode.vue

@@ -8,7 +8,7 @@ import Flow, {
   Controls,
   Node,
   FlowElement,
-  OnLoadParams,
+  FlowInstance,
   Elements,
   Position,
   SnapGrid,
@@ -25,7 +25,7 @@ const nodeTypes = {
   selectorNode: ColorSelectorNode,
 }
 
-const onLoad = (flowInstance: OnLoadParams) => {
+const onLoad = (flowInstance: FlowInstance) => {
   flowInstance.fitView()
   console.log('flow loaded:', flowInstance)
 }

examples/DragNDrop/DnD.vue

@@ -1,9 +1,9 @@
 <script lang="ts" setup>
 import Sidebar from './Sidebar.vue'
-import Flow, { addEdge, removeElements, Controls, OnLoadParams, Elements, Connection, Edge, ElementId, Node } from '~/index'
+import Flow, { addEdge, removeElements, Controls, FlowInstance, Elements, Connection, Edge, ElementId, Node } from '~/index'
 import './dnd.css'
 
-const flowInstance = ref<OnLoadParams>()
+const flowInstance = ref<FlowInstance>()
 const elements = ref<Elements>([
   {
     id: '1',
@@ -26,7 +26,7 @@ const onDragOver = (event: DragEvent) => {
 const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value as Elements))
 const onElementsRemove = (elementsToRemove: Elements) =>
   (elements.value = removeElements(elementsToRemove, elements.value as Elements))
-const onLoad = (instance: OnLoadParams) => (flowInstance.value = instance)
+const onLoad = (instance: FlowInstance) => (flowInstance.value = instance)
 
 const onDrop = (event: DragEvent) => {
   event.preventDefault()

examples/EdgeTypes/EdgeTypesExample.vue

@@ -3,9 +3,9 @@
  * Example for checking the different edge types and source and target positions
  */
 import { getElements } from './utils'
-import Flow, { removeElements, addEdge, MiniMap, Controls, Background, OnLoadParams, Connection, Edge, Elements } from '~/index'
+import Flow, { removeElements, addEdge, MiniMap, Controls, Background, FlowInstance, Connection, Edge, Elements } from '~/index'
 
-const onLoad = (flowInstance: OnLoadParams) => {
+const onLoad = (flowInstance: FlowInstance) => {
   flowInstance.fitView()
   console.log(flowInstance.getElements())
 }

examples/EdgeWithButton/EdgeWithButton.vue

@@ -9,7 +9,7 @@ import Flow, {
   EdgeType,
   Elements,
   MiniMap,
-  OnLoadParams,
+  FlowInstance,
   removeElements,
 } from '~/index'
 const edgeTypes = {
@@ -32,7 +32,7 @@ const elements = ref<Elements>([
   },
 ] as Elements)
 
-const onLoad = (flowInstance: OnLoadParams) => flowInstance.fitView()
+const onLoad = (flowInstance: FlowInstance) => flowInstance.fitView()
 const onElementsRemove = (elementsToRemove: Elements) =>
   (elements.value = removeElements(elementsToRemove, elements.value as Elements))
 const onConnect = (params: Connection | Edge) =>

examples/Edges/EdgesExample.vue

@@ -7,7 +7,7 @@ import Flow, {
   Controls,
   Background,
   Elements,
-  OnLoadParams,
+  FlowInstance,
   FlowElement,
   removeElements,
   Connection,
@@ -81,7 +81,7 @@ const edgeTypes: Record<string, any> = {
 
 const elements = ref<Elements>(initialElements as Elements)
 
-const onLoad = (flowInstance: OnLoadParams) => flowInstance.fitView()
+const onLoad = (flowInstance: FlowInstance) => flowInstance.fitView()
 const onNodeDragStop = (node: Node) => console.log('drag stop', node)
 const onElementClick = (element: FlowElement) => console.log('click', element)
 const onElementsRemove = (elementsToRemove: Elements) => (elements.value = removeElements(elementsToRemove, elements.value))

examples/Empty/EmptyExample.vue

@@ -11,7 +11,7 @@ import Flow, {
   Elements,
   FlowElement,
   Node,
-  OnLoadParams,
+  FlowInstance,
   addEdge,
   removeElements,
 } from '~/index'
@@ -20,7 +20,7 @@ const elements = ref<Elements>([])
 const onElementsRemove = (elementsToRemove: Elements) => (elements.value = removeElements(elementsToRemove, elements.value))
 const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value))
 
-const onLoad = (flowInstance: OnLoadParams) => console.log('flow loaded:', flowInstance)
+const onLoad = (flowInstance: FlowInstance) => console.log('flow loaded:', flowInstance)
 const onElementClick = (element: FlowElement) => console.log('click', element)
 const onNodeDragStop = (node: Node) => console.log('drag stop', node)
 

examples/NodeTypeChange/NodeTypeChangeExample.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import { CSSProperties } from 'vue'
-import Flow, { addEdge, Connection, Edge, Elements, isEdge, OnLoadParams, Position } from '~/index'
+import Flow, { addEdge, Connection, Edge, Elements, isEdge, FlowInstance, Position } from '~/index'
 
 const initialElements: Elements = [
   {
@@ -27,7 +27,7 @@ const elements = ref<Elements>(initialElements)
 
 const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value))
 
-const onLoad = (flowInstance: OnLoadParams) => flowInstance.fitView()
+const onLoad = (flowInstance: FlowInstance) => flowInstance.fitView()
 
 const changeType = () => {
   elements.value = elements.value.map((el) => {

examples/Overview/Overview.vue

@@ -10,7 +10,7 @@ import Flow, {
   Node,
   Elements,
   FlowElement,
-  OnLoadParams,
+  FlowInstance,
   FlowTransform,
   SnapGrid,
   ArrowHeadType,
@@ -35,7 +35,7 @@ const onSelectionContextMenu = (event: MouseEvent, nodes: Node[]) => {
 const onElementClick = (_: MouseEvent, element: FlowElement) =>
   console.log(`${isNode(element) ? 'node' : 'edge'} click:`, element)
 const onSelectionChange = (elements: Elements | null) => console.log('selection change', elements)
-const onLoad = (flowInstance: OnLoadParams) => {
+const onLoad = (flowInstance: FlowInstance) => {
   console.log('flow loaded:', flowInstance)
   flowInstance.fitView()
 }

examples/Provider/ProviderExample.vue

@@ -4,7 +4,7 @@ import Flow, {
   addEdge,
   removeElements,
   Controls,
-  OnLoadParams,
+  FlowInstance,
   FlowElement,
   Connection,
   Edge,
@@ -16,7 +16,7 @@ import Flow, {
 import './provider.css'
 
 const onElementClick = (element: FlowElement) => console.log('click', element)
-const onLoad = (flowInstance: OnLoadParams) => console.log('flow loaded:', flowInstance)
+const onLoad = (flowInstance: FlowInstance) => console.log('flow loaded:', flowInstance)
 
 const initialElements: Elements = [
   { id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },

examples/SaveRestore/Controls.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import localforage from 'localforage'
-import { useZoomPanHelper, OnLoadParams, FlowExportObject, Node } from '~/index'
+import { useZoomPanHelper, FlowInstance, FlowExportObject, Node } from '~/index'
 
 localforage.config({
   name: 'vue-flow',
@@ -14,7 +14,7 @@ const getNodeId = () => `randomnode_${+new Date()}`
 const { transform } = useZoomPanHelper()
 
 type ControlsProps = {
-  flowInstance?: OnLoadParams
+  flowInstance?: FlowInstance
 }
 
 const props = defineProps<ControlsProps>()

examples/SaveRestore/SaveRestoreExample.vue

@@ -1,6 +1,6 @@
 <script lang="ts" setup>
 import Controls from './Controls.vue'
-import Flow, { addEdge, Connection, Node, Edge, Elements, OnLoadParams, removeElements } from '~/index'
+import Flow, { addEdge, Connection, Node, Edge, Elements, FlowInstance, removeElements } from '~/index'
 
 import './save.css'
 
@@ -15,7 +15,7 @@ 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: OnLoadParams) => (flowInstance.value = instance)
+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>

examples/Stress/StressExample.vue

@@ -8,7 +8,7 @@ import Flow, {
   isNode,
   Controls,
   Background,
-  OnLoadParams,
+  FlowInstance,
   Elements,
   Connection,
   Edge,
@@ -16,7 +16,7 @@ import Flow, {
 
 const buttonWrapperStyles: CSSProperties = { position: 'absolute', right: 10, top: 10, zIndex: 4 }
 
-const onLoad = (flowInstance: OnLoadParams) => {
+const onLoad = (flowInstance: FlowInstance) => {
   flowInstance.fitView()
   console.log(flowInstance.getElements())
 }

examples/UpdatableEdge/UpdatableEdgeExample.vue

@@ -4,7 +4,7 @@ import Flow, {
   updateEdge,
   addEdge,
   Elements,
-  OnLoadParams,
+  FlowInstance,
   Connection,
   Edge,
   removeElements,
@@ -40,7 +40,7 @@ const initialElements: Elements = [
 ] as Elements
 
 const elements = ref(initialElements)
-const onLoad = (flowInstance: OnLoadParams) => flowInstance.fitView()
+const onLoad = (flowInstance: FlowInstance) => flowInstance.fitView()
 const onEdgeUpdateStart = (edge: Edge) => console.log('start update', edge)
 const onEdgeUpdateEnd = (edge: Edge) => console.log('end update', edge)
 const onEdgeUpdate = ({ edge, connection }: FlowEvents['edgeUpdate']) =>

examples/UpdateNodeInternals/CustomNode.vue

@@ -0,0 +1,25 @@
+<script lang="ts" setup>
+import { CSSProperties } from 'vue'
+import { Handle, Position, NodeProps } from '~/index'
+
+interface CustomNodeProps extends NodeProps {
+  data: any
+}
+const nodeStyles: CSSProperties = { padding: 10, border: '1px solid #ddd' }
+
+const props = defineProps<CustomNodeProps>()
+</script>
+<template>
+  <div :style="nodeStyles">
+    <Handle type="target" :position="Position.Left" />
+    <div>output handle count: {{ props.data.handleCount }}</div>
+    <Handle
+      v-for="i of props.data.handleCount"
+      :id="`handle-${i}`"
+      :key="`handle-${i}`"
+      type="source"
+      :position="Position.Right"
+      :style="{ top: 10 * i + props.data.handlePosition * 10 }"
+    />
+  </div>
+</template>

examples/UpdateNodeInternals/UpdateNodeInternalsExample.vue

@@ -0,0 +1,77 @@
+<script lang="ts" setup>
+import { CSSProperties } from 'vue'
+import CustomNode from './CustomNode.vue'
+import Flow, {
+  NodeType,
+  addEdge,
+  useZoomPanHelper,
+  Node,
+  Elements,
+  Connection,
+  Edge,
+  ElementId,
+  Position,
+  isEdge,
+  FlowInstance,
+} from '~/index'
+
+const initialHandleCount = 1
+
+const initialElements: Elements = [
+  {
+    id: '1',
+    type: 'custom',
+    data: { label: 'Node 1', handleCount: initialHandleCount, handlePosition: 0 },
+    position: { x: 250, y: 5 },
+  },
+] as Elements
+
+const buttonWrapperStyles: CSSProperties = { position: 'absolute', right: 10, top: 10, zIndex: 10 }
+
+const nodeTypes: Record<string, NodeType> = {
+  custom: CustomNode as NodeType,
+}
+
+let id = 5
+const getId = (): ElementId => `${id++}`
+
+const elements = ref<Elements>(initialElements)
+const flowInstance = ref<FlowInstance>()
+const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value))
+const { project } = useZoomPanHelper()
+
+const onPaneClick = (evt: MouseEvent) =>
+  (elements.value = elements.value.concat({
+    id: getId(),
+    position: project({ x: evt.clientX, y: evt.clientY - 40 }),
+    data: { label: 'new node' },
+    targetPosition: Position.Left,
+    sourcePosition: Position.Right,
+  } as Node))
+
+const toggleHandleCount = () =>
+  (elements.value = elements.value.map((el) => {
+    if (isEdge(el)) {
+      return el
+    }
+
+    return { ...el, data: { ...el.data, handleCount: el.data?.handleCount === 1 ? 2 : 1 } }
+  }))
+
+const toggleHandlePosition = () =>
+  (elements.value = elements.value.map((el) => {
+    if (isEdge(el)) return el
+    return { ...el, data: { ...el.data, handlePosition: el.data?.handlePosition === 0 ? 1 : 0 } }
+  }))
+
+const onLoad = (instance: FlowInstance) => (flowInstance.value = instance)
+</script>
+<template>
+  <Flow :elements="elements" :node-types="nodeTypes" @connect="onConnect" @pane-click="onPaneClick" @load="onLoad">
+    <div :style="buttonWrapperStyles">
+      <button @click="toggleHandleCount">toggle handle count</button>
+      <button @click="toggleHandlePosition">toggle handle position</button>
+      <button @click="() => flowInstance.updateNodeInternals('1')">update node internals</button>
+    </div>
+  </Flow>
+</template>

examples/router.ts

@@ -93,6 +93,10 @@ export const routes: RouterOptions['routes'] = [
     path: '/update-node',
     component: () => import('./UpdateNode/UpdateNodeExample.vue'),
   },
+  {
+    path: '/update-node-internals',
+    component: () => import('./UpdateNodeInternals/UpdateNodeInternalsExample.vue'),
+  },
 ]
 
 export const router = createRouter({