port more updates

packages/svelte/src/lib/hooks/useNodesEdgesViewport.svelte.ts

@@ -4,7 +4,7 @@ import { useStore } from '$lib/store';
  * Hook for getting the current nodes from the store.
  *
  * @public
- * @returns store with an array of nodes
+ * @returns reactive signal of the current edges
  */
 export function useNodes() {
   const { nodes } = $derived(useStore());
@@ -19,7 +19,7 @@ export function useNodes() {
  * Hook for getting the current edges from the store.
  *
  * @public
- * @returns store with an array of edges
+ * @returns reactive signal of the current edges
  */
 export function useEdges() {
   const { edges } = $derived(useStore());
@@ -29,3 +29,18 @@ export function useEdges() {
     }
   };
 }
+
+/**
+ * Hook for getting the current viewport from the store.
+ *
+ * @public
+ * @returns reactive signal of the current viewport
+ */
+export function useViewport() {
+  const { viewport } = $derived(useStore());
+  return {
+    get current() {
+      return viewport;
+    }
+  };
+}

packages/svelte/src/lib/hooks/useSvelteFlow.svelte.ts

@@ -370,7 +370,7 @@ export function useSvelteFlow(): {
 
       return Promise.resolve(true);
     },
-    getViewport: () => store.viewport,
+    getViewport: () => $state.snapshot(store.viewport),
     setCenter: async (x, y, options) => {
       const nextZoom = typeof options?.zoom !== 'undefined' ? options.zoom : store.maxZoom;
       const currentPanZoom = store.panZoom;

packages/svelte/src/lib/hooks/useUpdateNodeInternals.svelte.ts

@@ -1,4 +1,3 @@
-import { get } from 'svelte/store';
 import type { UpdateNodeInternals } from '@xyflow/system';
 
 import { useStore } from '$lib/store';
@@ -10,7 +9,7 @@ import { useStore } from '$lib/store';
  * @returns function for updating node internals
  */
 export function useUpdateNodeInternals(): UpdateNodeInternals {
-  const { domNode, updateNodeInternals } = useStore();
+  const { domNode, updateNodeInternals } = $derived(useStore());
 
   // @todo: do we want to add this to system?
   const updateInternals = (id: string | string[]) => {
@@ -18,7 +17,7 @@ export function useUpdateNodeInternals(): UpdateNodeInternals {
     const updates = new Map();
 
     updateIds.forEach((updateId) => {
-      const nodeElement = get(domNode)?.querySelector(
+      const nodeElement = domNode?.querySelector(
         `.svelte-flow__node[data-id="${updateId}"]`
       ) as HTMLDivElement;