fix(core): use noop viewport operations instead of waiting for promise

packages/core/src/composables/useViewport.ts

@@ -36,14 +36,7 @@ export function useViewport(state: State, getters: ComputedGetters) {
     nodesInitialized.value = true
   })
 
-  const isReady = computed(
-    () =>
-      !!d3Zoom &&
-      !!d3Selection &&
-      !!dimensions.width &&
-      !!dimensions.height &&
-      (getNodes.value.length ? nodesInitialized.value : true),
-  )
+  const isReady = computed(() => !!d3Zoom && !!d3Selection && !!dimensions.width && !!dimensions.height && nodesInitialized.value)
 
   function zoom(scale: number, duration?: number) {
     if (d3Selection && d3Zoom) {

packages/core/src/composables/useVueFlow.ts

@@ -39,13 +39,6 @@ export class Storage {
 
     const reactiveState = reactive(state)
 
-    const nodeIds = computed(() => reactiveState.nodes.map((n) => n.id))
-    const edgeIds = computed(() => reactiveState.edges.map((e) => e.id))
-
-    const getters = useGetters(reactiveState, nodeIds, edgeIds)
-
-    const actions = useActions(reactiveState, getters, nodeIds, edgeIds)
-
     const hooksOn = <any>{}
     Object.entries(reactiveState.hooks).forEach(([n, h]) => {
       const name = `on${n.charAt(0).toUpperCase() + n.slice(1)}`
@@ -57,6 +50,13 @@ export class Storage {
       emits[n] = h.trigger
     })
 
+    const nodeIds = computed(() => reactiveState.nodes.map((n) => n.id))
+    const edgeIds = computed(() => reactiveState.edges.map((e) => e.id))
+
+    const getters = useGetters(reactiveState, nodeIds, edgeIds)
+
+    const actions = useActions(id, emits, hooksOn, reactiveState, getters, nodeIds, edgeIds)
+
     actions.setState(reactiveState)
 
     const flow: VueFlowStore = {

packages/core/src/container/Viewport/Transform.vue

@@ -5,27 +5,16 @@ import { useVueFlow } from '../../composables'
 import NodeRenderer from '../NodeRenderer/NodeRenderer.vue'
 import EdgeRenderer from '../EdgeRenderer/EdgeRenderer.vue'
 
-const { id, viewport, emits, d3Zoom, d3Selection, dimensions, ...rest } = useVueFlow()
+const { id, viewport, d3Zoom, d3Selection, dimensions } = useVueFlow()
 
 const viewportReady = ref(!isClient)
 
 until(() => d3Zoom.value && d3Selection.value && dimensions.value.width > 0 && dimensions.value.height > 0)
-  .toBeTruthy()
+  .toBe(true)
   .then(() => {
-    // emit pane ready event
-    emits.paneReady({
-      id,
-      viewport,
-      emits,
-      d3Zoom,
-      d3Selection,
-      dimensions,
-      ...rest,
-    })
-
     setTimeout(() => {
       viewportReady.value = true
-    }, 0)
+    }, 1)
   })
 </script>
 

packages/core/src/store/actions.ts

@@ -48,14 +48,15 @@ import {
 } from '~/utils'
 
 export function useActions(
+  id: string,
+  emits: any,
+  hooksOn: any,
   state: State,
   getters: ComputedGetters,
   nodeIds: ComputedRef<string[]>,
   edgeIds: ComputedRef<string[]>,
 ): Actions {
-  let fitViewOnInitDone = false
-
-  const viewportHelper = $(useViewport(state, getters))
+  const viewportHelper = useViewport(state, getters)
 
   const updateNodeInternals: Actions['updateNodeInternals'] = (ids) => {
     const updateIds = ids ?? nodeIds.value ?? []
@@ -190,16 +191,6 @@ export function useActions(
       return res
     }, [])
 
-    if (state.fitViewOnInit && !fitViewOnInitDone) {
-      until(() => viewportHelper.initialized)
-        .toBe(true)
-        .then(() => {
-          viewportHelper.fitView()
-        })
-
-      fitViewOnInitDone = true
-    }
-
     if (changes.length) {
       state.hooks.nodesChange.trigger(changes)
     }
@@ -783,45 +774,6 @@ export function useActions(
     }
   }
 
-  const fitView: Actions['fitView'] = async (params = { padding: 0.1 }) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.fitView(params)
-  }
-
-  const zoomIn: Actions['zoomIn'] = async (options) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.zoomIn(options)
-  }
-
-  const zoomOut: Actions['zoomOut'] = async (options) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.zoomOut(options)
-  }
-
-  const zoomTo: Actions['zoomTo'] = async (zoomLevel, options) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.zoomTo(zoomLevel, options)
-  }
-
-  const setTransform: Actions['setTransform'] = async (transform, options) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.setTransform(transform, options)
-  }
-
-  const getTransform: Actions['getTransform'] = () => viewportHelper.getTransform()
-
-  const setCenter: Actions['setCenter'] = async (x, y, options) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.setCenter(x, y, options)
-  }
-
-  const fitBounds: Actions['fitBounds'] = async (bounds, options) => {
-    await until(() => viewportHelper.initialized).toBe(true)
-    viewportHelper.fitBounds(bounds, options)
-  }
-
-  const project: Actions['project'] = (position) => viewportHelper.project(position)
-
   const toObject: Actions['toObject'] = () => {
     // we have to stringify/parse so objects containing refs (like nodes and edges) can potentially be saved in a storage
     return JSON.parse(
@@ -866,7 +818,7 @@ export function useActions(
     }
 
     if (position) {
-      setTransform({ x: position[0], y: position[1], zoom: zoom || 1 })
+      viewportHelper.value.setTransform({ x: position[0], y: position[1], zoom: zoom || 1 })
     }
   }
 
@@ -896,7 +848,7 @@ export function useActions(
     setState(resetState)
   }
 
-  return {
+  const actions: Actions = {
     updateNodePositions,
     updateNodeDimensions,
     setElements,
@@ -929,19 +881,39 @@ export function useActions(
     getIntersectingNodes,
     isNodeIntersecting,
     panBy,
-    fitView,
-    zoomIn,
-    zoomOut,
-    zoomTo,
-    setTransform,
-    getTransform,
-    setCenter,
-    fitBounds,
-    project,
+    fitView: (params) => viewportHelper.value.fitView(params),
+    zoomIn: (transitionOpts) => viewportHelper.value.zoomIn(transitionOpts),
+    zoomOut: (transitionOpts) => viewportHelper.value.zoomOut(transitionOpts),
+    zoomTo: (zoomLevel, transitionOpts) => viewportHelper.value.zoomTo(zoomLevel, transitionOpts),
+    setTransform: (params, transitionOpts) => viewportHelper.value.setTransform(params, transitionOpts),
+    getTransform: () => viewportHelper.value.getTransform(),
+    setCenter: (x, y, opts) => viewportHelper.value.setCenter(x, y, opts),
+    fitBounds: (params, opts) => viewportHelper.value.fitBounds(params, opts),
+    project: (params) => viewportHelper.value.project(params),
     toObject,
     fromObject,
     updateNodeInternals,
     $reset,
     $destroy: () => {},
   }
+
+  until(() => viewportHelper.value.initialized)
+    .toBe(true, { flush: 'pre' })
+    .then(() => {
+      if (state.fitViewOnInit) {
+        viewportHelper.value.fitView()
+      }
+
+      state.hooks.paneReady.trigger({
+        id,
+        emits,
+        vueFlowVersion: typeof __VUE_FLOW_VERSION__ !== 'undefined' ? __VUE_FLOW_VERSION__ : 'UNKNOWN',
+        ...hooksOn,
+        ...state,
+        ...getters,
+        ...actions,
+      })
+    })
+
+  return actions
 }