added parentLookup

packages/svelte/src/lib/store/initial-store.ts

@@ -81,7 +81,8 @@ export const getInitialStore = ({
   fitView?: boolean;
 }) => {
   const nodeLookup: NodeLookup = new Map();
-  adoptUserNodes(nodes, nodeLookup, {
+  const parentLookup = new Map();
+  adoptUserNodes(nodes, nodeLookup, parentLookup, {
     nodeOrigin: [0, 0],
     elevateNodesOnSelect: false,
     checkEquality: false
@@ -104,8 +105,9 @@ export const getInitialStore = ({
 
   return {
     flowId: writable<string | null>(null),
-    nodes: createNodesStore(nodes, nodeLookup),
+    nodes: createNodesStore(nodes, nodeLookup, parentLookup),
     nodeLookup: readable<NodeLookup<InternalNode>>(nodeLookup),
+    parentLookup: readable<Map<string, InternalNode[]>>(parentLookup),
     edgeLookup: readable<EdgeLookup<Edge>>(edgeLookup),
     visibleNodes: readable<InternalNode[]>([]),
     edges: createEdgesStore(edges, connectionLookup, edgeLookup),

packages/svelte/src/lib/store/utils.ts

@@ -127,7 +127,8 @@ export type NodeStoreOptions = {
 // The user only passes in relative positions, so we need to calculate the absolute positions based on the parent nodes.
 export const createNodesStore = (
   nodes: Node[],
-  nodeLookup: NodeLookup<InternalNode>
+  nodeLookup: NodeLookup<InternalNode>,
+  parentLookup: Map<string, InternalNode[]>
 ): {
   subscribe: (this: void, run: Subscriber<Node[]>) => Unsubscriber;
   update: (this: void, updater: Updater<Node[]>) => void;
@@ -141,7 +142,7 @@ export const createNodesStore = (
   let elevateNodesOnSelect = true;
 
   const _set = (nds: Node[]): Node[] => {
-    adoptUserNodes(nds, nodeLookup, {
+    adoptUserNodes(nds, nodeLookup, parentLookup, {
       elevateNodesOnSelect,
       defaults,
       checkEquality: false