fix(TextInput/isFocused): correctly handle null focused input (#13219)

* Change files

* fix(TextInput/isFocused): correctly handle null focused input

Signed-off-by: Nathanael Bracy <nate@bracy.dev>

* fix

---------

Signed-off-by: Nathanael Bracy <nate@bracy.dev>
Co-authored-by: Andrew Coates <30809111+acoates-ms@users.noreply.github.com>

change/@office-iss-react-native-win32-153ff284-0e4b-42da-8d03-d6585a865cf4.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "fix(TextInput/isFocused): correctly handle null focused input",
+  "packageName": "@office-iss/react-native-win32",
+  "email": "nate@bracy.dev",
+  "dependentChangeType": "none"
+}

change/react-native-windows-f51acce3-f93a-49cb-955a-38ff1bef4726.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "fix(TextInput/isFocused): correctly handle null focused input",
+  "packageName": "react-native-windows",
+  "email": "nate@bracy.dev",
+  "dependentChangeType": "none"
+}

package.json

@@ -65,5 +65,6 @@
   },
   "resolutions.justification": {
     "z-schema": "CVE-2021-3765 in validator. z-schema is used by rush which is a dependency of lage so should not be executed in this repo"
-  }
-}
+  },
+  "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
+}

packages/@office-iss/react-native-win32/src-win/Libraries/Components/TextInput/TextInput.win32.js

@@ -1278,9 +1278,9 @@ function InternalTextInput(props: Props): React.Node {
               );
             }
           },
-          // TODO: Fix this returning true on null === null, when no input is focused
           isFocused(): boolean {
-            return TextInputState.currentlyFocusedInput() === inputRef.current;
+            const currentlyFocusedInput = TextInputState.currentlyFocusedInput();
+            return currentlyFocusedInput !== null && currentlyFocusedInput === inputRef.current;
           },
           getNativeRef(): ?React.ElementRef<HostComponent<mixed>> {
             return inputRef.current;

vnext/src-win/Libraries/Components/TextInput/TextInput.windows.js

@@ -1310,9 +1310,9 @@ function InternalTextInput(props: Props): React.Node {
               );
             }
           },
-          // TODO: Fix this returning true on null === null, when no input is focused
           isFocused(): boolean {
-            return TextInputState.currentlyFocusedInput() === inputRef.current;
+            const currentlyFocusedInput = TextInputState.currentlyFocusedInput();
+            return currentlyFocusedInput !== null && currentlyFocusedInput === inputRef.current;
           },
           getNativeRef(): ?React.ElementRef<HostComponent<mixed>> {
             return inputRef.current;