From 08759121cda3785e4d7ee1f1c82011a3e3a955a9 Mon Sep 17 00:00:00 2001
From: Zeya Peng <zeyap@meta.com>
Date: Wed, 13 Nov 2024 11:38:02 -0800
Subject: [PATCH] validate input before calling `setSelection` to restore
 selection range (#47577)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/47577

Changelog: [Android][Fixed] ensure setSelection in onAttachedToWindow is within text range

Reviewed By: javache

Differential Revision: D65824906

fbshipit-source-id: 3dc7d27bf4f9a10762f11fa4a0bcae8af13c7db7
---
 .../facebook/react/views/textinput/ReactEditText.java    | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.java
index c7506b7dfc9..56a10692cf1 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/views/textinput/ReactEditText.java
@@ -408,6 +408,10 @@ public class ReactEditText extends AppCompatEditText {
       return;
     }
 
+    maybeSetSelection(start, end);
+  }
+
+  private void maybeSetSelection(int start, int end) {
     if (start != ReactConstants.UNSET && end != ReactConstants.UNSET) {
       // clamp selection values for safety
       start = clampToTextLength(start);
@@ -534,7 +538,8 @@ public class ReactEditText extends AppCompatEditText {
       int selectionStart = getSelectionStart();
       int selectionEnd = getSelectionEnd();
       setInputType(mStagedInputType);
-      setSelection(selectionStart, selectionEnd);
+      // Restore the selection
+      maybeSetSelection(selectionStart, selectionEnd);
     }
   }
 
@@ -1071,7 +1076,7 @@ public class ReactEditText extends AppCompatEditText {
     super.setTextIsSelectable(true);
 
     // Restore the selection since `setTextIsSelectable` changed it.
-    setSelection(selectionStart, selectionEnd);
+    maybeSetSelection(selectionStart, selectionEnd);
 
     if (mContainsImages) {
       Spanned text = getText();