feat: add zoomTarget support to zoom-image action

web/src/lib/actions/zoom-image.ts

@@ -1,8 +1,12 @@
 import { assetViewerManager } from '$lib/managers/asset-viewer-manager.svelte';
 import { createZoomImageWheel } from '@zoom-image/core';
 
-export const zoomImageAction = (node: HTMLElement, options?: { disabled?: boolean }) => {
-  const zoomInstance = createZoomImageWheel(node, { maxZoom: 10, initialState: assetViewerManager.zoomState });
+export const zoomImageAction = (node: HTMLElement, options?: { disabled?: boolean; zoomTarget?: HTMLElement }) => {
+  const zoomInstance = createZoomImageWheel(node, {
+    maxZoom: 10,
+    initialState: assetViewerManager.zoomState,
+    zoomTarget: options?.zoomTarget,
+  });
 
   const unsubscribes = [
     assetViewerManager.on({ ZoomChange: (state) => zoomInstance.setState(state) }),
@@ -20,8 +24,11 @@ export const zoomImageAction = (node: HTMLElement, options?: { disabled?: boolea
 
   node.style.overflow = 'visible';
   return {
-    update(newOptions?: { disabled?: boolean }) {
+    update(newOptions?: { disabled?: boolean; zoomTarget?: HTMLElement }) {
       options = newOptions;
+      if (newOptions?.zoomTarget !== undefined) {
+        zoomInstance.setState({ zoomTarget: newOptions.zoomTarget });
+      }
     },
     destroy() {
       for (const unsubscribe of unsubscribes) {