refactor(store)!: remove pinia

* replace pinia with a reactive state object and inject/provide

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

update(store)!: inject store if possible, otherwise create a new one by id

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

package.json

@@ -38,8 +38,7 @@
     "d3": "^7.1.1",
     "d3-selection": "^3.0.0",
     "d3-zoom": "^3.0.0",
-    "microdiff": "^1.2.0",
+    "microdiff": "^1.2.0"
-    "pinia": "^2.0.0-rc.10"
   },
   "devDependencies": {
     "@antfu/eslint-config": "^0.9.0",

src/components/NodesSelection/NodesSelection.vue

@@ -54,7 +54,7 @@ export default {
       @stop="onStop"
     >
       <div
-        :key="`vue-flow-nodesselection-rect-${store.$id}`"
+        :key="`vue-flow-nodesselection-rect-${store.id}`"
         class="vue-flow__nodesselection-rect"
         :style="innerStyle"
         @contextmenu="onContextMenu"

src/composables/index.ts

@@ -3,6 +3,6 @@ export { default as useHooks } from './useHooks'
 export * from './useHooks'
 export { default as useKeyPress } from './useKeyPress'
 export { default as useZoomPanHelper } from './useZoomPanHelper'
-export { default as useStore } from './useStore'
+export { default as useStore, createStore } from './useStore'
 export { default as useWindow } from './useWindow'
 export { default as useVueFlow, initFlow } from './useVueFlow'

src/composables/useHandle.ts

@@ -1,6 +1,6 @@
 import useStore from './useStore'
 import { getHostForElement } from '~/utils'
-import { Connection, ConnectionMode, ElementId, HandleType, ValidConnectionFunc } from '~/types'
+import { Connection, ConnectionMode, ElementId, HandleType, ReactiveFlowStore, ValidConnectionFunc } from '~/types'
 
 type Result = {
   elementBelow: Element | null
@@ -67,7 +67,7 @@ const resetRecentHandle = (hoveredHandle: Element): void => {
   hoveredHandle?.classList.remove('vue-flow__handle-connecting')
 }
 
-export default (store = useStore()) =>
+export default (store: ReactiveFlowStore = useStore()) =>
   (
     event: MouseEvent,
     handleId: ElementId,

src/composables/useHooks.ts

@@ -1,4 +1,4 @@
-import { EmitFunc, FlowHooks, FlowEvents, FlowStore } from '~/types'
+import { EmitFunc, FlowHooks, FlowEvents, FlowStore, ReactiveFlowStore } from '~/types'
 
 // flow event hooks
 export const createHooks = (): FlowHooks => ({
@@ -49,4 +49,4 @@ const bind = (emit: EmitFunc, hooks: FlowHooks) => {
   }
 }
 
-export default (store: FlowStore, emit: EmitFunc) => bind(emit, store.hooks)
+export default (store: ReactiveFlowStore, emit: EmitFunc) => bind(emit, store.hooks)

src/composables/useStore.ts

@@ -1,38 +1,46 @@
-import { FlowExportObject, FlowOptions, FlowState } from '~/types'
+import { FlowExportObject, FlowOptions, FlowState, ReactiveFlowStore } from '~/types'
-import { useStateStore } from '~/store'
+import { useNewStore } from '~/store'
 import { Store } from '~/context'
 import { onLoadToObject, initialState } from '~/utils'
 
 let id = 0
-export default (options?: Partial<FlowOptions>, key?: string) => {
+export const createStore = (options?: FlowOptions) => {
-  let store = inject(Store, undefined)
+  const withStorage = options?.storageKey ?? false
-  if (!store) {
+  let storedState = ref<FlowExportObject>()
-    const withStorage = options?.storageKey ?? key ?? false
+  const initial = initialState()
-    if (import.meta.env.DEV) console.warn('store context not found; creating default store')
+  const storageKey = options?.id ?? `vue-flow-${id++}`
-    let storedState = ref<FlowExportObject>()
+  const preloadedState = {
-    const initial = initialState()
+    ...initial,
-    const storageKey = key ?? `vue-flow-${id++}`
+    ...(options as FlowState),
-    const preloadedState = {
+  }
-      ...initial,
+  if (withStorage) {
-      ...(options as FlowState),
+    storedState = useStorage<FlowExportObject>(storageKey, { elements: [], position: [0, 0], zoom: 0 })
+    if (storedState.value) {
+      preloadedState.elements = storedState.value.elements ?? options?.elements ?? []
+      if (storedState.value.position && storedState.value.zoom)
+        preloadedState.transform = [storedState.value.position[0], storedState.value.position[1], storedState.value.zoom]
     }
-    if (withStorage) {
+  }
-      storedState = useStorage<FlowExportObject>(storageKey, { elements: [], position: [0, 0], zoom: 0 })
+  const store = useNewStore(storageKey, preloadedState)
-      if (storedState.value) {
+  if (withStorage && storageKey === store.id?.value) {
-        preloadedState.elements = storedState.value.elements ?? options?.elements ?? []
+    const toObject = onLoadToObject(store.state)
-        if (storedState.value.position && storedState.value.zoom)
+    watch(
-          preloadedState.transform = [storedState.value.position[0], storedState.value.position[1], storedState.value.zoom]
+      store.state,
-      }
+      () => {
-    }
-    store = useStateStore(storageKey, preloadedState)()
-    if (withStorage && storageKey === store.$id) {
-      const toObject = onLoadToObject(store)
-      store.$subscribe(() => {
         storedState.value = toObject()
-      })
+      },
-    }
+      { deep: true },
-    provide(Store, store)
+    )
   }
-
   return store
 }
+
+export default (options?: FlowOptions): ReactiveFlowStore => {
+  let store = options?.id ? createStore(options) : inject(Store, undefined)
+  if (!store) {
+    store = createStore(options)
+  }
+  provide(Store, store)
+
+  return reactive(store)
+}

src/composables/useVueFlow.ts

@@ -1,10 +1,12 @@
 import useStore from './useStore'
 import useHooks from './useHooks'
-import { EmitFunc, FlowOptions, FlowStore } from '~/types'
+import { EmitFunc, ReactiveFlowStore } from '~/types'
 
-export const initFlow = (emit: EmitFunc, key?: string, store = useStore(undefined, key)) => {
+let key = 0
+export const initFlow = (emit: EmitFunc, id = `vue-flow-${key++}`): ReactiveFlowStore => {
+  const store = useStore({ id })
   useHooks(store, emit)
   return store
 }
 
-export default (options?: Partial<FlowOptions>): FlowStore => useStore(options)
+export default useStore

src/composables/useZoomPanHelper.ts

@@ -1,11 +1,11 @@
 import { zoomIdentity } from 'd3-zoom'
 import useStore from './useStore'
 import { getRectOfNodes, pointToRendererPoint, getTransformForBounds, isGraphNode } from '~/utils'
-import { FitViewParams, FlowTransform, GraphNode, Rect, UseZoomPanHelper, XYPosition } from '~/types'
+import { FitViewParams, FlowTransform, GraphNode, ReactiveFlowStore, Rect, UseZoomPanHelper, XYPosition } from '~/types'
 
 const DEFAULT_PADDING = 0.1
 
-export default (store = useStore()): UseZoomPanHelper => {
+export default (store: ReactiveFlowStore = useStore()): UseZoomPanHelper => {
   return {
     zoomIn: () => store.d3Selection && store.d3Zoom?.scaleBy(store.d3Selection, 1.2),
     zoomOut: () => store.d3Selection && store.d3Zoom?.scaleBy(store.d3Selection, 1 / 1.2),
@@ -14,7 +14,13 @@ export default (store = useStore()): UseZoomPanHelper => {
       const nextTransform = zoomIdentity.translate(transform.x, transform.y).scale(transform.zoom)
       store.d3Selection && store.d3Zoom?.transform(store.d3Selection, nextTransform)
     },
-    fitView: (options: FitViewParams = { padding: DEFAULT_PADDING, includeHiddenNodes: false, transitionDuration: 0 }) => {
+    fitView: (
+      options: FitViewParams = {
+        padding: DEFAULT_PADDING,
+        includeHiddenNodes: false,
+        transitionDuration: 0,
+      },
+    ) => {
       if (!store.getNodes.length) return
 
       let nodes: GraphNode[] = []

src/container/SelectionPane/SelectionPane.vue

@@ -70,12 +70,12 @@ export default {
 </script>
 <template>
   <slot></slot>
-  <UserSelection v-if="userSelection" id="user-selection" :key="`user-selection-${store.$id}`" />
+  <UserSelection v-if="userSelection" id="user-selection" :key="`user-selection-${store.id}`" />
   <NodesSelection
     v-if="props.nodesSelectionActive"
     id="nodes-selection"
-    :key="`nodes-selction-${store.$id}`"
+    :key="`nodes-selction-${store.id}`"
     :selected-elements="props.selectedElements"
   />
-  <div :key="`flow-pane-${store.$id}`" class="vue-flow__pane" @click="onClick" @contextmenu="onContextMenu" @wheel="onWheel" />
+  <div :key="`flow-pane-${store.id}`" class="vue-flow__pane" @click="onClick" @contextmenu="onContextMenu" @wheel="onWheel" />
 </template>

src/container/VueFlow/VueFlow.vue

@@ -1,5 +1,5 @@
 <script lang="ts" setup>
-import { CSSProperties, onBeforeUnmount } from 'vue'
+import { CSSProperties } from 'vue'
 import {
   ConnectionLineType,
   ConnectionMode,
@@ -64,6 +64,8 @@ interface FlowProps extends FlowOptions {
 
 const props = withDefaults(defineProps<FlowProps>(), {
   modelValue: () => [],
+  edgeTypes: () => [],
+  nodeTypes: () => [],
   connectionMode: ConnectionMode.Loose,
   connectionLineType: ConnectionLineType.Bezier,
   selectionKeyCode: 'Shift',
@@ -103,10 +105,9 @@ const props = withDefaults(defineProps<FlowProps>(), {
   loading: false,
 })
 const emit = defineEmits([...Object.keys(createHooks()), 'update:modelValue'])
-const store = initFlow(emit, typeof props.storageKey === 'string' ? props.storageKey : props.id)
+const store = initFlow(emit, props.id)
 const elements = useVModel(props, 'modelValue', emit)
-const options = Object.assign({}, store.$state, props)
+store.setState(props)
-store.setState(options)
 watch(
   () => props,
   () => store.setState(props),
@@ -144,22 +145,16 @@ const transitionName = computed(() => {
   }
   return name
 })
+</script>
 
-onBeforeUnmount(() => store?.$dispose())
-</script>
-<script lang="ts">
-export default {
-  name: 'VueFlow'
-}
-</script>
 <template>
   <div class="vue-flow">
-    <Transition :key="`vue-flow-transition-${store.$id}`" :name="transitionName">
+    <Transition :key="`vue-flow-transition-${store.id}`" :name="transitionName">
       <Suspense timeout="0">
         <template #default>
-          <Renderer :key="`renderer-${store.$id}`" :elements="elements">
+          <Renderer :key="`renderer-${store.id}`" :elements="elements">
             <ZoomPane
-              :key="`zoom-pane-${store.$id}`"
+              :key="`zoom-pane-${store.id}`"
               :prevent-scrolling="store.preventScrolling"
               :selection-key-code="store.selectionKeyCode"
               :zoom-activation-key-code="store.zoomActivationKeyCode"
@@ -175,7 +170,7 @@ export default {
             >
               <template #default="zoomPaneProps">
                 <SelectionPane
-                  :key="`selection-pane-${store.$id}`"
+                  :key="`selection-pane-${store.id}`"
                   :edges="store.getEdges"
                   :selected-elements="store.selectedElements"
                   :selection-active="store.selectionActive"
@@ -186,7 +181,7 @@ export default {
                   :selection-key-code="store.selectionKeyCode"
                 >
                   <NodeRenderer
-                    :key="`node-renderer-${store.$id}`"
+                    :key="`node-renderer-${store.id}`"
                     :nodes="store.getNodes"
                     :node-types="store.getNodeTypes"
                     :snap-to-grid="store.snapToGrid"
@@ -200,13 +195,13 @@ export default {
                     <template
                       v-for="nodeName of Object.keys(store.getNodeTypes)"
                       #[`node-${nodeName}`]="nodeProps"
-                      :key="`node-${nodeName}-${store.$id}`"
+                      :key="`node-${nodeName}-${store.id}`"
                     >
                       <slot :name="`node-${nodeName}`" v-bind="nodeProps" />
                     </template>
                   </NodeRenderer>
                   <EdgeRenderer
-                    :key="`edge-renderer-${store.$id}`"
+                    :key="`edge-renderer-${store.id}`"
                     :transform="store.transform"
                     :dimensions="store.dimensions"
                     :edges="store.getEdges"
@@ -230,13 +225,13 @@ export default {
                     <template
                       v-for="edgeName of Object.keys(store.getEdgeTypes)"
                       #[`edge-${edgeName}`]="edgeProps"
-                      :key="`edge-${edgeName}-${store.$id}`"
+                      :key="`edge-${edgeName}-${store.id}`"
                     >
                       <slot :name="`edge-${edgeName}`" v-bind="edgeProps" />
                     </template>
                     <template #custom-connection-line="customConnectionLineProps">
                       <slot
-                        :key="`connection-line-${store.$id}`"
+                        :key="`connection-line-${store.id}`"
                         name="custom-connection-line"
                         v-bind="customConnectionLineProps"
                       />
@@ -249,8 +244,8 @@ export default {
           </Renderer>
         </template>
         <template v-if="store.loading" #fallback>
-          <slot :key="`loading-indicator-${store.$id}`" name="loading-indicator">
+          <slot :key="`loading-indicator-${store.id}`" name="loading-indicator">
-            <LoadingIndicator :key="`default-loading-indicator-${store.$id}`" v-bind="store.loading">
+            <LoadingIndicator :key="`default-loading-indicator-${store.id}`" v-bind="store.loading">
               <slot name="loading-label" />
             </LoadingIndicator>
           </slot>

src/store/actions.ts

@@ -0,0 +1,169 @@
+import microDiff from 'microdiff'
+import { Elements, FlowActions, FlowGetters, FlowState } from '~/types'
+import { getConnectedEdges, getNodesInside, getRectOfNodes, parseElements, processElements } from '~/utils'
+
+export default (state: FlowState, getters: FlowGetters): FlowActions => {
+  const setElements: FlowActions['setElements'] = async (elements, force = true) => {
+    const { nodes, edges } = parseElements(elements, state.elements, state.nodeExtent)
+    if (force) state.elements = []
+    await processElements([...nodes, ...edges], (processed) => {
+      state.elements = [...state.elements, ...processed]
+    })
+    state.hooks.elementsProcessed.trigger(state.elements)
+  }
+  const setUserSelection: FlowActions['setUserSelection'] = (mousePos) => {
+    state.selectionActive = true
+    state.userSelectionRect = {
+      width: 0,
+      height: 0,
+      startX: mousePos.x,
+      startY: mousePos.y,
+      x: mousePos.x,
+      y: mousePos.y,
+      draw: true,
+    }
+  }
+  const updateUserSelection: FlowActions['updateUserSelection'] = (mousePos) => {
+    const startX = state.userSelectionRect.startX
+    const startY = state.userSelectionRect.startY
+
+    const nextUserSelectRect: FlowState['userSelectionRect'] = {
+      ...state.userSelectionRect,
+      x: mousePos.x < startX ? mousePos.x : state.userSelectionRect.x,
+      y: mousePos.y < startY ? mousePos.y : state.userSelectionRect.y,
+      width: Math.abs(mousePos.x - startX),
+      height: Math.abs(mousePos.y - startY),
+    }
+    const selectedNodes = getNodesInside(getters.getNodes.value, state.userSelectionRect, state.transform)
+    const selectedEdges = getConnectedEdges(selectedNodes, getters.getEdges.value)
+
+    const nextSelectedElements = [...selectedNodes, ...selectedEdges]
+    state.userSelectionRect = nextUserSelectRect
+    state.selectedElements = nextSelectedElements
+  }
+  const unsetUserSelection: FlowActions['unsetUserSelection'] = () => {
+    state.selectionActive = false
+    state.userSelectionRect.draw = false
+
+    if (!getters.getSelectedNodes || getters.getSelectedNodes.value.length === 0) {
+      state.selectedElements = undefined
+      state.hooks.selectionChange.trigger(undefined)
+      state.nodesSelectionActive = false
+    } else {
+      state.selectedNodesBbox = getRectOfNodes(getters.getSelectedNodes.value)
+      state.nodesSelectionActive = true
+    }
+  }
+  const addSelectedElements: FlowActions['addSelectedElements'] = (elements: any) => {
+    const selectedElementsArr = Array.isArray(elements) ? elements : [elements]
+    const selectedElementsUpdated = microDiff(selectedElementsArr, state.selectedElements ?? []).length
+    state.selectedElements = selectedElementsUpdated ? selectedElementsArr : state.selectedElements
+    if (selectedElementsUpdated) state.hooks.selectionChange.trigger(selectedElementsArr)
+  }
+  const initD3Zoom: FlowActions['initD3Zoom'] = ({ d3ZoomHandler, d3Zoom, d3Selection }) => {
+    state.d3Zoom = d3Zoom
+    state.d3Selection = d3Selection
+    state.d3ZoomHandler = d3ZoomHandler
+  }
+  const setMinZoom: FlowActions['setMinZoom'] = (minZoom: any) => {
+    state.d3Zoom?.scaleExtent([minZoom, state.maxZoom])
+    state.minZoom = minZoom
+  }
+  const setMaxZoom: FlowActions['setMaxZoom'] = (maxZoom: any) => {
+    state.d3Zoom?.scaleExtent([state.minZoom, maxZoom])
+    state.maxZoom = maxZoom
+  }
+  const setTranslateExtent: FlowActions['setTranslateExtent'] = (translateExtent: any) => {
+    state.d3Zoom?.translateExtent(translateExtent)
+    state.translateExtent = translateExtent
+  }
+  const resetSelectedElements: FlowActions['resetSelectedElements'] = () => {
+    state.selectedElements = undefined
+  }
+  const unsetNodesSelection: FlowActions['unsetNodesSelection'] = () => {
+    state.nodesSelectionActive = false
+  }
+  const updateSize: FlowActions['updateSize'] = (size) => {
+    state.dimensions = size
+  }
+  const setConnectionNodeId: FlowActions['setConnectionNodeId'] = ({
+    connectionHandleId,
+    connectionHandleType,
+    connectionNodeId,
+  }) => {
+    state.connectionNodeId = connectionNodeId
+    state.connectionHandleId = connectionHandleId
+    state.connectionHandleType = connectionHandleType
+  }
+  const setInteractive: FlowActions['setInteractive'] = (isInteractive) => {
+    state.nodesDraggable = isInteractive
+    state.nodesConnectable = isInteractive
+    state.elementsSelectable = isInteractive
+  }
+  const addElements: FlowActions['addElements'] = (elements: Elements) => {
+    setElements(elements, false)
+  }
+  const setState: FlowActions['setState'] = (newState) => {
+    if (typeof newState.loading !== 'undefined') state.loading = newState.loading
+    if (typeof newState.panOnScroll !== 'undefined') state.panOnScroll = newState.panOnScroll
+    if (typeof newState.panOnScrollMode !== 'undefined') state.panOnScrollMode = newState.panOnScrollMode
+    if (typeof newState.panOnScrollSpeed !== 'undefined') state.panOnScrollSpeed = newState.panOnScrollSpeed
+    if (typeof newState.paneMoveable !== 'undefined') state.paneMoveable = newState.paneMoveable
+    if (typeof newState.zoomOnScroll !== 'undefined') state.zoomOnScroll = newState.zoomOnScroll
+    if (typeof newState.preventScrolling !== 'undefined') state.preventScrolling = newState.preventScrolling
+    if (typeof newState.zoomOnDoubleClick !== 'undefined') state.zoomOnDoubleClick = newState.zoomOnDoubleClick
+    if (typeof newState.zoomOnPinch !== 'undefined') state.zoomOnPinch = newState.zoomOnPinch
+    if (typeof newState.defaultZoom !== 'undefined') state.defaultZoom = newState.defaultZoom
+    if (typeof newState.defaultPosition !== 'undefined') state.defaultPosition = newState.defaultPosition
+    if (typeof newState.edgeTypes !== 'undefined') state.edgeTypes = newState.edgeTypes
+    if (typeof newState.nodeTypes !== 'undefined') state.nodeTypes = newState.nodeTypes
+    if (typeof newState.storageKey !== 'undefined') state.storageKey = newState.storageKey
+    if (typeof newState.edgeUpdaterRadius !== 'undefined') state.edgeUpdaterRadius = newState.edgeUpdaterRadius
+    if (typeof newState.elementsSelectable !== 'undefined') state.elementsSelectable = newState.elementsSelectable
+    if (typeof newState.onlyRenderVisibleElements !== 'undefined')
+      state.onlyRenderVisibleElements = newState.onlyRenderVisibleElements
+    if (typeof newState.edgesUpdatable !== 'undefined') state.edgesUpdatable = newState.edgesUpdatable
+    if (typeof newState.nodesConnectable !== 'undefined') state.nodesConnectable = newState.nodesConnectable
+    if (typeof newState.nodesDraggable !== 'undefined') state.nodesDraggable = newState.nodesDraggable
+    if (typeof newState.arrowHeadColor !== 'undefined') state.arrowHeadColor = newState.arrowHeadColor
+    if (typeof newState.markerEndId !== 'undefined') state.markerEndId = newState.markerEndId
+    if (typeof newState.deleteKeyCode !== 'undefined') state.deleteKeyCode = newState.deleteKeyCode
+    if (typeof newState.selectionKeyCode !== 'undefined') state.selectionKeyCode = newState.selectionKeyCode
+    if (typeof newState.zoomActivationKeyCode !== 'undefined') state.zoomActivationKeyCode = newState.zoomActivationKeyCode
+    if (typeof newState.multiSelectionKeyCode !== 'undefined') state.multiSelectionKeyCode = newState.multiSelectionKeyCode
+    if (typeof newState.snapToGrid !== 'undefined') state.snapToGrid = newState.snapToGrid
+    if (typeof newState.snapGrid !== 'undefined') state.snapGrid = newState.snapGrid
+    if (typeof newState.nodeExtent !== 'undefined') state.nodeExtent = newState.nodeExtent
+    if (!state.isReady)
+      until(() => state.d3Zoom)
+        .not.toBeUndefined()
+        .then(() => {
+          if (typeof newState.maxZoom !== 'undefined') setMaxZoom(newState.maxZoom)
+          if (typeof newState.minZoom !== 'undefined') setMinZoom(newState.minZoom)
+          if (typeof newState.translateExtent !== 'undefined') setTranslateExtent(newState.translateExtent)
+        })
+    else {
+      if (typeof newState.maxZoom !== 'undefined') setMaxZoom(newState.maxZoom)
+      if (typeof newState.minZoom !== 'undefined') setMinZoom(newState.minZoom)
+      if (typeof newState.translateExtent !== 'undefined') setTranslateExtent(newState.translateExtent)
+    }
+  }
+  return {
+    setElements,
+    setUserSelection,
+    updateUserSelection,
+    unsetUserSelection,
+    addSelectedElements,
+    initD3Zoom,
+    setMinZoom,
+    setMaxZoom,
+    setTranslateExtent,
+    resetSelectedElements,
+    unsetNodesSelection,
+    updateSize,
+    setConnectionNodeId,
+    setInteractive,
+    addElements,
+    setState,
+  }
+}

src/store/getters.ts

@@ -0,0 +1,73 @@
+import { FlowGetters, FlowState, GraphEdge, GraphNode } from '~/types'
+import { defaultEdgeTypes, defaultNodeTypes, getNodesInside, getSourceTargetNodes, isEdge, isGraphNode } from '~/utils'
+
+export default (state: FlowState): FlowGetters => {
+  const getEdgeTypes = computed(() => {
+    const edgeTypes: Record<string, any> = {
+      ...defaultEdgeTypes,
+    }
+    state.edgeTypes?.forEach((n) => (edgeTypes[n] = n))
+    return edgeTypes
+  })
+
+  const getNodeTypes = computed(() => {
+    const nodeTypes: Record<string, any> = {
+      ...defaultNodeTypes,
+    }
+    state.nodeTypes?.forEach((n) => (nodeTypes[n] = n))
+    return nodeTypes
+  })
+
+  const getNodes = computed<GraphNode[]>(() => {
+    if (state.isReady) {
+      const nodes = state.elements.filter((n) => isGraphNode(n) && !n.isHidden) as GraphNode[]
+      return state.onlyRenderVisibleElements
+        ? nodes &&
+            getNodesInside(
+              nodes,
+              {
+                x: 0,
+                y: 0,
+                width: state.dimensions.width,
+                height: state.dimensions.height,
+              },
+              state.transform,
+              true,
+            )
+        : nodes ?? []
+    }
+    return []
+  })
+
+  const getEdges = computed<GraphEdge[]>(() => {
+    const edges = state.elements.filter((e) => isEdge(e) && !e.isHidden) as GraphEdge[]
+    if (state.isReady) {
+      return (
+        edges
+          .map((edge) => {
+            const { sourceNode, targetNode } = getSourceTargetNodes(edge, getNodes.value)
+            if (!sourceNode) console.warn(`couldn't create edge for source id: ${edge.source}; edge id: ${edge.id}`)
+            if (!targetNode) console.warn(`couldn't create edge for target id: ${edge.target}; edge id: ${edge.id}`)
+
+            return {
+              ...edge,
+              sourceNode,
+              targetNode,
+            }
+          })
+          .filter(({ sourceNode, targetNode }) => !!(sourceNode && targetNode)) ?? []
+      )
+    }
+    return []
+  })
+
+  const getSelectedNodes = computed<GraphNode[]>(() => state.selectedElements?.filter(isGraphNode) ?? [])
+
+  return {
+    getEdgeTypes,
+    getNodeTypes,
+    getEdges,
+    getNodes,
+    getSelectedNodes,
+  }
+}

src/store/index.ts

@@ -1 +1 @@
-export { default as useStateStore } from './stateStore'
+export { default as useNewStore } from './store'

src/store/state.ts

@@ -0,0 +1,5 @@
+import { FlowState } from '~/types'
+
+export default (preloadedState: FlowState) => ({
+  ...preloadedState,
+})

src/store/stateStore.ts

@@ -1,241 +0,0 @@
-import microDiff from 'microdiff'
-import { setActivePinia, createPinia, defineStore, StoreDefinition, acceptHMRUpdate, getActivePinia } from 'pinia'
-import { FlowState, FlowActions, Elements, FlowGetters, GraphNode, GraphEdge } from '~/types'
-import {
-  getConnectedEdges,
-  getNodesInside,
-  getRectOfNodes,
-  defaultNodeTypes,
-  defaultEdgeTypes,
-  isGraphNode,
-  getSourceTargetNodes,
-  isEdge,
-  parseElements,
-  processElements,
-} from '~/utils'
-
-const pinia = createPinia()
-
-export default (id: string, preloadedState: FlowState) => {
-  setActivePinia(getActivePinia() ?? pinia)
-
-  const store: StoreDefinition<string, FlowState, FlowGetters, FlowActions> = defineStore({
-    id: id ?? 'vue-flow',
-    state: () => ({
-      ...preloadedState,
-    }),
-    getters: {
-      getEdgeTypes() {
-        const edgeTypes: Record<string, any> = {
-          ...defaultEdgeTypes,
-        }
-        this.edgeTypes?.forEach((n) => (edgeTypes[n] = n))
-        return edgeTypes
-      },
-      getNodeTypes() {
-        const nodeTypes: Record<string, any> = {
-          ...defaultNodeTypes,
-        }
-        this.nodeTypes?.forEach((n) => (nodeTypes[n] = n))
-        return nodeTypes
-      },
-      getNodes(): GraphNode[] {
-        if (this.isReady) {
-          const nodes = this.elements.filter((n) => isGraphNode(n) && !n.isHidden) as GraphNode[]
-          return this.onlyRenderVisibleElements
-            ? nodes &&
-                getNodesInside(
-                  nodes,
-                  {
-                    x: 0,
-                    y: 0,
-                    width: this.dimensions.width,
-                    height: this.dimensions.height,
-                  },
-                  this.transform,
-                  true,
-                )
-            : nodes ?? []
-        }
-        return []
-      },
-      getEdges(): GraphEdge[] {
-        const edges = this.elements.filter((e) => isEdge(e) && !e.isHidden) as GraphEdge[]
-        if (this.isReady) {
-          return (
-            edges
-              .map((edge) => {
-                const { sourceNode, targetNode } = getSourceTargetNodes(edge, this.getNodes)
-                if (!sourceNode) console.warn(`couldn't create edge for source id: ${edge.source}; edge id: ${edge.id}`)
-                if (!targetNode) console.warn(`couldn't create edge for target id: ${edge.target}; edge id: ${edge.id}`)
-
-                return {
-                  ...edge,
-                  sourceNode,
-                  targetNode,
-                }
-              })
-              .filter(({ sourceNode, targetNode }) => !!(sourceNode && targetNode)) ?? []
-          )
-        }
-        return []
-      },
-      getSelectedNodes(): GraphNode[] {
-        return this.selectedElements?.filter(isGraphNode) ?? []
-      },
-    },
-    actions: {
-      async setElements(elements, force = true) {
-        const { nodes, edges } = parseElements(elements, this.elements, this.nodeExtent)
-        if (force) this.elements = []
-        await processElements([...nodes, ...edges], (processed) => {
-          this.elements = [...this.elements, ...processed]
-        })
-        this.hooks.elementsProcessed.trigger(this.elements)
-      },
-      setUserSelection(mousePos) {
-        this.selectionActive = true
-        this.userSelectionRect = {
-          width: 0,
-          height: 0,
-          startX: mousePos.x,
-          startY: mousePos.y,
-          x: mousePos.x,
-          y: mousePos.y,
-          draw: true,
-        }
-      },
-      updateUserSelection(mousePos) {
-        const startX = this.userSelectionRect.startX
-        const startY = this.userSelectionRect.startY
-
-        const nextUserSelectRect: FlowState['userSelectionRect'] = {
-          ...this.userSelectionRect,
-          x: mousePos.x < startX ? mousePos.x : this.userSelectionRect.x,
-          y: mousePos.y < startY ? mousePos.y : this.userSelectionRect.y,
-          width: Math.abs(mousePos.x - startX),
-          height: Math.abs(mousePos.y - startY),
-        }
-        const selectedNodes = getNodesInside(this.getNodes, this.userSelectionRect, this.transform)
-        const selectedEdges = getConnectedEdges(selectedNodes, this.getEdges)
-
-        const nextSelectedElements = [...selectedNodes, ...selectedEdges]
-        this.userSelectionRect = nextUserSelectRect
-        this.selectedElements = nextSelectedElements
-      },
-      unsetUserSelection() {
-        this.selectionActive = false
-        this.userSelectionRect.draw = false
-
-        if (!this.getSelectedNodes || this.getSelectedNodes.length === 0) {
-          this.selectedElements = undefined
-          this.hooks.selectionChange.trigger(undefined)
-          this.nodesSelectionActive = false
-        } else {
-          this.selectedNodesBbox = getRectOfNodes(this.getSelectedNodes)
-          this.nodesSelectionActive = true
-        }
-      },
-      addSelectedElements(elements) {
-        const selectedElementsArr = Array.isArray(elements) ? elements : [elements]
-        const selectedElementsUpdated = microDiff(selectedElementsArr, this.selectedElements ?? []).length
-        this.selectedElements = selectedElementsUpdated ? selectedElementsArr : this.selectedElements
-        if (selectedElementsUpdated) this.hooks.selectionChange.trigger(selectedElementsArr)
-      },
-      initD3Zoom({ d3ZoomHandler, d3Zoom, d3Selection }) {
-        this.d3Zoom = d3Zoom
-        this.d3Selection = d3Selection
-        this.d3ZoomHandler = d3ZoomHandler
-      },
-      setMinZoom(minZoom) {
-        this.d3Zoom?.scaleExtent([minZoom, this.maxZoom])
-        this.minZoom = minZoom
-      },
-      setMaxZoom(maxZoom) {
-        this.d3Zoom?.scaleExtent([this.minZoom, maxZoom])
-        this.maxZoom = maxZoom
-      },
-      setTranslateExtent(translateExtent) {
-        this.d3Zoom?.translateExtent(translateExtent)
-        this.translateExtent = translateExtent
-      },
-      setNodeExtent(nodeExtent) {
-        this.nodeExtent = nodeExtent
-      },
-      resetSelectedElements() {
-        this.selectedElements = undefined
-      },
-      unsetNodesSelection() {
-        this.nodesSelectionActive = false
-      },
-      updateSize(size) {
-        this.dimensions = size
-      },
-      setConnectionNodeId({ connectionHandleId, connectionHandleType, connectionNodeId }) {
-        this.connectionNodeId = connectionNodeId
-        this.connectionHandleId = connectionHandleId
-        this.connectionHandleType = connectionHandleType
-      },
-      setInteractive(isInteractive) {
-        this.nodesDraggable = isInteractive
-        this.nodesConnectable = isInteractive
-        this.elementsSelectable = isInteractive
-      },
-      addElements(elements: Elements) {
-        this.setElements(elements, false)
-      },
-      setState(state) {
-        if (typeof state.loading !== 'undefined') this.loading = state.loading
-        if (typeof state.panOnScroll !== 'undefined') this.panOnScroll = state.panOnScroll
-        if (typeof state.panOnScrollMode !== 'undefined') this.panOnScrollMode = state.panOnScrollMode
-        if (typeof state.panOnScrollSpeed !== 'undefined') this.panOnScrollSpeed = state.panOnScrollSpeed
-        if (typeof state.paneMoveable !== 'undefined') this.paneMoveable = state.paneMoveable
-        if (typeof state.zoomOnScroll !== 'undefined') this.zoomOnScroll = state.zoomOnScroll
-        if (typeof state.preventScrolling !== 'undefined') this.preventScrolling = state.preventScrolling
-        if (typeof state.zoomOnDoubleClick !== 'undefined') this.zoomOnDoubleClick = state.zoomOnDoubleClick
-        if (typeof state.zoomOnPinch !== 'undefined') this.zoomOnPinch = state.zoomOnPinch
-        if (typeof state.defaultZoom !== 'undefined') this.defaultZoom = state.defaultZoom
-        if (typeof state.defaultPosition !== 'undefined') this.defaultPosition = state.defaultPosition
-        if (typeof state.edgeTypes !== 'undefined') this.edgeTypes = state.edgeTypes
-        if (typeof state.nodeTypes !== 'undefined') this.nodeTypes = state.nodeTypes
-        if (typeof state.storageKey !== 'undefined') this.storageKey = state.storageKey
-        if (typeof state.edgeUpdaterRadius !== 'undefined') this.edgeUpdaterRadius = state.edgeUpdaterRadius
-        if (typeof state.elementsSelectable !== 'undefined') this.elementsSelectable = state.elementsSelectable
-        if (typeof state.onlyRenderVisibleElements !== 'undefined')
-          this.onlyRenderVisibleElements = state.onlyRenderVisibleElements
-        if (typeof state.edgesUpdatable !== 'undefined') this.edgesUpdatable = state.edgesUpdatable
-        if (typeof state.nodesConnectable !== 'undefined') this.nodesConnectable = state.nodesConnectable
-        if (typeof state.nodesDraggable !== 'undefined') this.nodesDraggable = state.nodesDraggable
-        if (typeof state.arrowHeadColor !== 'undefined') this.arrowHeadColor = state.arrowHeadColor
-        if (typeof state.markerEndId !== 'undefined') this.markerEndId = state.markerEndId
-        if (typeof state.deleteKeyCode !== 'undefined') this.deleteKeyCode = state.deleteKeyCode
-        if (typeof state.selectionKeyCode !== 'undefined') this.selectionKeyCode = state.selectionKeyCode
-        if (typeof state.zoomActivationKeyCode !== 'undefined') this.zoomActivationKeyCode = state.zoomActivationKeyCode
-        if (typeof state.multiSelectionKeyCode !== 'undefined') this.multiSelectionKeyCode = state.multiSelectionKeyCode
-        if (typeof state.snapToGrid !== 'undefined') this.snapToGrid = state.snapToGrid
-        if (typeof state.snapGrid !== 'undefined') this.snapGrid = state.snapGrid
-        if (!this.isReady)
-          until(() => this.d3Zoom)
-            .not.toBeUndefined()
-            .then(() => {
-              if (typeof state.maxZoom !== 'undefined') this.setMaxZoom(state.maxZoom)
-              if (typeof state.minZoom !== 'undefined') this.setMinZoom(state.minZoom)
-              if (typeof state.translateExtent !== 'undefined') this.setTranslateExtent(state.translateExtent)
-              if (typeof state.nodeExtent !== 'undefined') this.setNodeExtent(state.nodeExtent)
-            })
-        else {
-          if (typeof state.maxZoom !== 'undefined') this.setMaxZoom(state.maxZoom)
-          if (typeof state.minZoom !== 'undefined') this.setMinZoom(state.minZoom)
-          if (typeof state.translateExtent !== 'undefined') this.setTranslateExtent(state.translateExtent)
-          if (typeof state.nodeExtent !== 'undefined') this.setNodeExtent(state.nodeExtent)
-        }
-      },
-    },
-  })
-
-  if (import.meta.hot) {
-    import.meta.hot.accept(acceptHMRUpdate(store, import.meta.hot))
-  }
-
-  return store
-}

src/store/store.ts

@@ -0,0 +1,16 @@
+import useState from './state'
+import useActions from './actions'
+import useGetters from './getters'
+import { FlowState, FlowStore } from '~/types'
+
+export default (id: string, preloadedState: FlowState): FlowStore => {
+  const state = reactive(useState(preloadedState))
+  const getters = useGetters(state)
+  const actions = useActions(state, getters)
+  return {
+    state,
+    ...toRefs(state),
+    ...getters,
+    ...actions,
+  }
+}

src/types/connection.ts

@@ -32,9 +32,6 @@ export type OnConnectStartParams = {
   handleId?: ElementId
   handleType?: HandleType
 }
-export type OnConnectStartFunc = (event: MouseEvent, params: OnConnectStartParams) => void
-export type OnConnectStopFunc = (event: MouseEvent) => void
-export type OnConnectEndFunc = (event: MouseEvent) => void
 
 export enum ConnectionMode {
   Strict = 'strict',

src/types/store.ts

@@ -1,4 +1,5 @@
-import { Store } from 'pinia'
+import { ComputedRef, ToRefs } from 'vue'
+import { UnwrapNestedRefs } from '@vue/reactivity'
 import {
   Dimensions,
   ElementId,
@@ -13,14 +14,7 @@ import {
   XYPosition,
 } from './flow'
 import { HandleType, EdgeComponent, NodeComponent } from './components'
-import {
+import { ConnectionMode, SetConnectionId } from './connection'
-  ConnectionMode,
-  OnConnectEndFunc,
-  OnConnectFunc,
-  OnConnectStartFunc,
-  OnConnectStopFunc,
-  SetConnectionId,
-} from './connection'
 import { GraphEdge } from './edge'
 import { NodeExtent, GraphNode, TranslateExtent } from './node'
 import { D3Selection, D3Zoom, D3ZoomHandler, InitD3ZoomPayload } from './zoom'
@@ -28,13 +22,13 @@ import { FlowHooks } from './hooks'
 
 export interface FlowState extends Omit<FlowOptions, 'elements'> {
   hooks: FlowHooks
-  instance?: FlowInstance
+  instance: FlowInstance | undefined
 
   elements: FlowElements
 
-  d3Zoom?: D3Zoom
+  d3Zoom: D3Zoom | undefined
-  d3Selection?: D3Selection
+  d3Selection: D3Selection | undefined
-  d3ZoomHandler?: D3ZoomHandler
+  d3ZoomHandler: D3ZoomHandler | undefined
   minZoom: number
   maxZoom: number
   translateExtent: TranslateExtent
@@ -42,16 +36,16 @@ export interface FlowState extends Omit<FlowOptions, 'elements'> {
   dimensions: Dimensions
   transform: Transform
 
-  selectedElements?: FlowElements
+  selectedElements: FlowElements | undefined
-  selectedNodesBbox?: Rect
+  selectedNodesBbox: Rect | undefined
   nodesSelectionActive: boolean
   selectionActive: boolean
   userSelectionRect: SelectionRect
   multiSelectionActive: boolean
 
-  connectionNodeId?: ElementId
+  connectionNodeId: ElementId | undefined
-  connectionHandleId?: ElementId
+  connectionHandleId: ElementId | undefined
-  connectionHandleType?: HandleType
+  connectionHandleType: HandleType | undefined
   connectionPosition: XYPosition
   connectionMode: ConnectionMode
 
@@ -63,11 +57,6 @@ export interface FlowState extends Omit<FlowOptions, 'elements'> {
   nodesConnectable: boolean
   elementsSelectable: boolean
 
-  onConnect?: OnConnectFunc
-  onConnectStart?: OnConnectStartFunc
-  onConnectStop?: OnConnectStopFunc
-  onConnectEnd?: OnConnectEndFunc
-
   isReady: boolean
 
   vueFlowVersion: string
@@ -83,22 +72,22 @@ export interface FlowActions {
   setMinZoom: (zoom: number) => void
   setMaxZoom: (zoom: number) => void
   setTranslateExtent: (translateExtent: TranslateExtent) => void
-  setNodeExtent: (nodeExtent: NodeExtent) => void
   resetSelectedElements: () => void
   unsetNodesSelection: () => void
   updateSize: (size: Dimensions) => void
   setConnectionNodeId: (payload: SetConnectionId) => void
   setInteractive: (isInteractive: boolean) => void
   addElements: (elements: Elements) => void
-  setState: (state: FlowOptions) => void
+  setState: (state: Partial<FlowOptions>) => void
 }
 
 export interface FlowGetters {
-  getEdgeTypes: () => Record<string, EdgeComponent>
+  getEdgeTypes: ComputedRef<Record<string, EdgeComponent>>
-  getNodeTypes: () => Record<string, NodeComponent>
+  getNodeTypes: ComputedRef<Record<string, NodeComponent>>
-  getNodes: () => GraphNode[]
+  getNodes: ComputedRef<GraphNode[]>
-  getEdges: () => GraphEdge[]
+  getEdges: ComputedRef<GraphEdge[]>
-  getSelectedNodes: () => GraphNode[]
+  getSelectedNodes: ComputedRef<GraphNode[]>
 }
 
-export type FlowStore = Store<string, FlowState, FlowGetters, FlowActions>
+export type FlowStore = { state: FlowState } & ToRefs<FlowState> & FlowActions & FlowGetters
+export type ReactiveFlowStore = UnwrapNestedRefs<FlowStore>

src/utils/edge.ts

@@ -15,8 +15,8 @@ import {
 export function getHandlePosition(position: Position, node: GraphNode, handle?: HandleElement): XYPosition {
   const x = (handle?.x ?? 0) + node.position.x
   const y = (handle?.y ?? 0) + node.position.y
-  const width = handle?.width || node.__vf.width
+  const width = handle?.width ?? node.__vf.width
-  const height = handle?.height || node.__vf.height
+  const height = handle?.height ?? node.__vf.height
 
   switch (position) {
     case Position.Top:
@@ -48,7 +48,7 @@ export function getHandle(bounds: HandleElement[], handleId?: ElementId): Handle
   // there is no handleId when there are no multiple handles/ handles with ids
   // so we just pick the first one
   let handle
-  if (bounds.length === 1 || !handleId) {
+  if (bounds.length === 1 ?? !handleId) {
     handle = bounds[0]
   } else if (handleId) {
     handle = bounds.find((d) => d.id === handleId)

src/utils/graph.ts

@@ -16,6 +16,8 @@ import {
   FlowElements,
   GraphEdge,
   NextElements,
+  ReactiveFlowStore,
+  FlowState,
 } from '~/types'
 import { useWindow } from '~/composables'
 import { getSourceTargetNodes } from '~/utils/edge'
@@ -161,7 +163,7 @@ export const pointToRendererPoint = (
   return position
 }
 
-export const onLoadProject = (currentStore: FlowStore) => (position: XYPosition) =>
+export const onLoadProject = (currentStore: ReactiveFlowStore) => (position: XYPosition) =>
   pointToRendererPoint(position, currentStore.transform, currentStore.snapToGrid, currentStore.snapGrid)
 
 export const parseNode = (node: Node, nodeExtent: NodeExtent): GraphNode => ({
@@ -276,9 +278,9 @@ export const getConnectedEdges = (nodes: GraphNode[], edges: GraphEdge[]) => {
   return edges.filter((edge) => nodeIds.includes(edge.source) || nodeIds.includes(edge.target))
 }
 
-export const onLoadGetElements = (currentStore: FlowStore) => (): FlowElements => currentStore.elements
+export const onLoadGetElements = (currentStore: ReactiveFlowStore) => (): FlowElements => currentStore.elements
 
-export const onLoadToObject = (currentStore: FlowStore) => (): FlowExportObject => {
+export const onLoadToObject = (currentStore: FlowState) => (): FlowExportObject => {
   // we have to stringify/parse so objects containing refs (like nodes and edges) can potentially be saved in a storage
   return JSON.parse(
     JSON.stringify({

src/utils/store.ts

@@ -16,6 +16,8 @@ export const defaultEdgeTypes: DefaultEdgeTypes = {
 }
 
 export const initialState = (): FlowState => ({
+  isReady: false,
+  instance: undefined,
   dimensions: {
     width: 0,
     height: 0,
@@ -50,6 +52,9 @@ export const initialState = (): FlowState => ({
   panOnScrollMode: PanOnScrollMode.Free,
   paneMoveable: true,
   edgeUpdaterRadius: 10,
+  onlyRenderVisibleElements: undefined,
+  defaultZoom: undefined,
+  defaultPosition: undefined,
 
   nodesSelectionActive: false,
   selectionActive: false,
@@ -65,6 +70,8 @@ export const initialState = (): FlowState => ({
   },
 
   arrowHeadColor: '#b1b1b7',
+  connectionLineStyle: {},
+  connectionLineType: undefined,
   connectionNodeId: undefined,
   connectionHandleId: undefined,
   connectionHandleType: 'source',
@@ -78,12 +85,18 @@ export const initialState = (): FlowState => ({
   nodesDraggable: true,
   nodesConnectable: true,
   elementsSelectable: true,
-
+  selectNodesOnDrag: undefined,
   multiSelectionActive: false,
+  deleteKeyCode: undefined,
+  selectionKeyCode: undefined,
+  multiSelectionKeyCode: undefined,
+  zoomActivationKeyCode: undefined,
 
-  isReady: false,
   hooks: createHooks(),
   loading: false,
 
+  markerEndId: undefined,
+  storageKey: undefined,
+
   vueFlowVersion: typeof __VUE_FLOW_VERSION__ !== 'undefined' ? __VUE_FLOW_VERSION__ : '-',
 })