feat(hooks): add useNodeDimensions

src/hooks/useNodeDimensions.ts

@@ -0,0 +1,31 @@
+import { useCallback } from 'react';
+import shallow from 'zustand/shallow';
+
+import { Rect } from '../types';
+import { useStore } from '../store';
+
+function useNodeDimensions(id: string): Rect | null {
+  const nodeDimensions = useStore(
+    useCallback(
+      (s) => {
+        const nodeItem = s.nodeInternals.get(id);
+
+        if (!nodeItem) {
+          return null;
+        }
+
+        return {
+          ...nodeItem.positionAbsolute,
+          width: nodeItem.width,
+          height: nodeItem.height,
+        };
+      },
+      [id]
+    ),
+    shallow
+  );
+
+  return nodeDimensions;
+}
+
+export default useNodeDimensions;