From a6dd18c2a6936b658016372ddb323f4be30cabc0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rub=C3=A9n=20Norte?= <rubennorte@meta.com>
Date: Thu, 27 Feb 2025 03:07:54 -0800
Subject: [PATCH] Expose new DOM classes in the global scope (#49697)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/49697

Changelog: [internal]

These classes cannot be instantiated directly, but having access to them allows users to do `instanceof` checks, e.g.:

```
if (ref.current instanceof Element) {
  ref.current.getBoundingClientRect();
}
```

Reviewed By: yungsters

Differential Revision: D70244966

fbshipit-source-id: 3c1e3698b8851ef9ce3c2865e7435b000984c8f0
---
 .../src/private/setup/setUpDOM.js             | 37 ++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/packages/react-native/src/private/setup/setUpDOM.js b/packages/react-native/src/private/setup/setUpDOM.js
index a0bf36b1c45..a506401440c 100644
--- a/packages/react-native/src/private/setup/setUpDOM.js
+++ b/packages/react-native/src/private/setup/setUpDOM.js
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @flow strict
+ * @flow strict-local
  * @format
  */
 
@@ -29,6 +29,11 @@ export default function setUpDOM() {
     () => require('../webapis/geometry/DOMRectReadOnly').default,
   );
 
+  polyfillGlobal(
+    'DOMRectList',
+    () => require('../webapis/geometry/DOMRectList').default,
+  );
+
   polyfillGlobal(
     'HTMLCollection',
     () => require('../webapis/dom/oldstylecollections/HTMLCollection').default,
@@ -38,4 +43,34 @@ export default function setUpDOM() {
     'NodeList',
     () => require('../webapis/dom/oldstylecollections/NodeList').default,
   );
+
+  polyfillGlobal(
+    'Node',
+    () => require('../webapis/dom/nodes/ReadOnlyNode').default,
+  );
+
+  polyfillGlobal(
+    'Document',
+    () => require('../webapis/dom/nodes/ReactNativeDocument').default,
+  );
+
+  polyfillGlobal(
+    'CharacterData',
+    () => require('../webapis/dom/nodes/ReadOnlyCharacterData').default,
+  );
+
+  polyfillGlobal(
+    'Text',
+    () => require('../webapis/dom/nodes/ReadOnlyText').default,
+  );
+
+  polyfillGlobal(
+    'Element',
+    () => require('../webapis/dom/nodes/ReadOnlyElement').default,
+  );
+
+  polyfillGlobal(
+    'HTMLElement',
+    () => require('../webapis/dom/nodes/ReactNativeElement').default,
+  );
 }