Compute the content bounds only of nodes whose children changed

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlags.kt

@@ -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.
  *
- * @generated SignedSource<<c65f172e91f823049cf508cc70663c64>>
+ * @generated SignedSource<<d8800bc1ed4391e9333258dd7c99f412>>
  */
 
 /**
@@ -522,6 +522,12 @@ public object ReactNativeFeatureFlags {
   @JvmStatic
   public fun skipUnchangedChildrenInDifferentiator(): Boolean = accessor.skipUnchangedChildrenInDifferentiator()
 
+  /**
+   * Layout keeps the overflowInset of a node from its previous revision, instead of computing it again from its children, when neither the node nor its children changed.
+   */
+  @JvmStatic
+  public fun skipUnchangedOverflowInsetInLayout(): Boolean = accessor.skipUnchangedOverflowInsetInLayout()
+
   /**
    * Override getClipBounds on Android views to return the padding box when overflow is hidden
    */

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxAccessor.kt

@@ -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.
  *
- * @generated SignedSource<<4bcfd7705680a00615bddc6ffeccfe4b>>
+ * @generated SignedSource<<eb7f9c0f5213ff5cba49495c83438914>>
  */
 
 /**
@@ -102,6 +102,7 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
   private var shouldTriggerResponderTransferOnScrollAndroidCache: Boolean? = null
   private var skipActivityIdentityAssertionOnHostPauseCache: Boolean? = null
   private var skipUnchangedChildrenInDifferentiatorCache: Boolean? = null
+  private var skipUnchangedOverflowInsetInLayoutCache: Boolean? = null
   private var syncAndroidClipBoundsWithOverflowCache: Boolean? = null
   private var traceTurboModulePromiseRejectionsOnAndroidCache: Boolean? = null
   private var updateRuntimeShadowNodeReferencesOnCommitCache: Boolean? = null
@@ -857,6 +858,15 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
     return cached
   }
 
+  override fun skipUnchangedOverflowInsetInLayout(): Boolean {
+    var cached = skipUnchangedOverflowInsetInLayoutCache
+    if (cached == null) {
+      cached = ReactNativeFeatureFlagsCxxInterop.skipUnchangedOverflowInsetInLayout()
+      skipUnchangedOverflowInsetInLayoutCache = cached
+    }
+    return cached
+  }
+
   override fun syncAndroidClipBoundsWithOverflow(): Boolean {
     var cached = syncAndroidClipBoundsWithOverflowCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxInterop.kt

@@ -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.
  *
- * @generated SignedSource<<f7a31d0435905a87a8ce08a517f9e17d>>
+ * @generated SignedSource<<358f98df922b0d9dbd89d8f8e903ac29>>
  */
 
 /**
@@ -192,6 +192,8 @@ public object ReactNativeFeatureFlagsCxxInterop {
 
   @DoNotStrip @JvmStatic public external fun skipUnchangedChildrenInDifferentiator(): Boolean
 
+  @DoNotStrip @JvmStatic public external fun skipUnchangedOverflowInsetInLayout(): Boolean
+
   @DoNotStrip @JvmStatic public external fun syncAndroidClipBoundsWithOverflow(): Boolean
 
   @DoNotStrip @JvmStatic public external fun traceTurboModulePromiseRejectionsOnAndroid(): Boolean

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsDefaults.kt

@@ -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.
  *
- * @generated SignedSource<<db85f9c22970c773cc95ab6bf72d9871>>
+ * @generated SignedSource<<97ba66f8a849c88d77ee4b65a1997129>>
  */
 
 /**
@@ -187,6 +187,8 @@ public open class ReactNativeFeatureFlagsDefaults : ReactNativeFeatureFlagsProvi
 
   override fun skipUnchangedChildrenInDifferentiator(): Boolean = false
 
+  override fun skipUnchangedOverflowInsetInLayout(): Boolean = false
+
   override fun syncAndroidClipBoundsWithOverflow(): Boolean = false
 
   override fun traceTurboModulePromiseRejectionsOnAndroid(): Boolean = false

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsLocalAccessor.kt

@@ -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.
  *
- * @generated SignedSource<<4e53ce712d5e472d8a9dfa673a108aa5>>
+ * @generated SignedSource<<ced701930d55c03e9b35b2e886a95846>>
  */
 
 /**
@@ -106,6 +106,7 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
   private var shouldTriggerResponderTransferOnScrollAndroidCache: Boolean? = null
   private var skipActivityIdentityAssertionOnHostPauseCache: Boolean? = null
   private var skipUnchangedChildrenInDifferentiatorCache: Boolean? = null
+  private var skipUnchangedOverflowInsetInLayoutCache: Boolean? = null
   private var syncAndroidClipBoundsWithOverflowCache: Boolean? = null
   private var traceTurboModulePromiseRejectionsOnAndroidCache: Boolean? = null
   private var updateRuntimeShadowNodeReferencesOnCommitCache: Boolean? = null
@@ -943,6 +944,16 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
     return cached
   }
 
+  override fun skipUnchangedOverflowInsetInLayout(): Boolean {
+    var cached = skipUnchangedOverflowInsetInLayoutCache
+    if (cached == null) {
+      cached = currentProvider.skipUnchangedOverflowInsetInLayout()
+      accessedFeatureFlags.add("skipUnchangedOverflowInsetInLayout")
+      skipUnchangedOverflowInsetInLayoutCache = cached
+    }
+    return cached
+  }
+
   override fun syncAndroidClipBoundsWithOverflow(): Boolean {
     var cached = syncAndroidClipBoundsWithOverflowCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsProvider.kt

@@ -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.
  *
- * @generated SignedSource<<dcfcca254ea381db5ac0cc2ea2a6a66b>>
+ * @generated SignedSource<<44add928aa34871a70b7f35524ddfd97>>
  */
 
 /**
@@ -187,6 +187,8 @@ public interface ReactNativeFeatureFlagsProvider {
 
   @DoNotStrip public fun skipUnchangedChildrenInDifferentiator(): Boolean
 
+  @DoNotStrip public fun skipUnchangedOverflowInsetInLayout(): Boolean
+
   @DoNotStrip public fun syncAndroidClipBoundsWithOverflow(): Boolean
 
   @DoNotStrip public fun traceTurboModulePromiseRejectionsOnAndroid(): Boolean

packages/react-native/ReactAndroid/src/main/jni/react/featureflags/JReactNativeFeatureFlagsCxxInterop.cpp

@@ -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.
  *
- * @generated SignedSource<<80dd5355f9f95d594f04d6b41fc785f5>>
+ * @generated SignedSource<<f116ba3a2ab7741055c233f754e114b7>>
  */
 
 /**
@@ -531,6 +531,12 @@ class ReactNativeFeatureFlagsJavaProvider
     return method(javaProvider_);
   }
 
+  bool skipUnchangedOverflowInsetInLayout() override {
+    static const auto method =
+        getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("skipUnchangedOverflowInsetInLayout");
+    return method(javaProvider_);
+  }
+
   bool syncAndroidClipBoundsWithOverflow() override {
     static const auto method =
         getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("syncAndroidClipBoundsWithOverflow");
@@ -1041,6 +1047,11 @@ bool JReactNativeFeatureFlagsCxxInterop::skipUnchangedChildrenInDifferentiator(
   return ReactNativeFeatureFlags::skipUnchangedChildrenInDifferentiator();
 }
 
+bool JReactNativeFeatureFlagsCxxInterop::skipUnchangedOverflowInsetInLayout(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
+  return ReactNativeFeatureFlags::skipUnchangedOverflowInsetInLayout();
+}
+
 bool JReactNativeFeatureFlagsCxxInterop::syncAndroidClipBoundsWithOverflow(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
   return ReactNativeFeatureFlags::syncAndroidClipBoundsWithOverflow();
@@ -1398,6 +1409,9 @@ void JReactNativeFeatureFlagsCxxInterop::registerNatives() {
       makeNativeMethod(
         "skipUnchangedChildrenInDifferentiator",
         JReactNativeFeatureFlagsCxxInterop::skipUnchangedChildrenInDifferentiator),
+      makeNativeMethod(
+        "skipUnchangedOverflowInsetInLayout",
+        JReactNativeFeatureFlagsCxxInterop::skipUnchangedOverflowInsetInLayout),
       makeNativeMethod(
         "syncAndroidClipBoundsWithOverflow",
         JReactNativeFeatureFlagsCxxInterop::syncAndroidClipBoundsWithOverflow),

packages/react-native/ReactAndroid/src/main/jni/react/featureflags/JReactNativeFeatureFlagsCxxInterop.h

@@ -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.
  *
- * @generated SignedSource<<5fcb0abec30cc84df7a627d008f6c92a>>
+ * @generated SignedSource<<6d35a981b8b0d5c65c478e80ae6cca93>>
  */
 
 /**
@@ -276,6 +276,9 @@ class JReactNativeFeatureFlagsCxxInterop
   static bool skipUnchangedChildrenInDifferentiator(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 
+  static bool skipUnchangedOverflowInsetInLayout(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
+
   static bool syncAndroidClipBoundsWithOverflow(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.cpp

@@ -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.
  *
- * @generated SignedSource<<9b64fa4c8329098d9c2977ad2a162fbf>>
+ * @generated SignedSource<<2f8d7b1943ee966572fa7e0ab4354680>>
  */
 
 /**
@@ -354,6 +354,10 @@ bool ReactNativeFeatureFlags::skipUnchangedChildrenInDifferentiator() {
   return getAccessor().skipUnchangedChildrenInDifferentiator();
 }
 
+bool ReactNativeFeatureFlags::skipUnchangedOverflowInsetInLayout() {
+  return getAccessor().skipUnchangedOverflowInsetInLayout();
+}
+
 bool ReactNativeFeatureFlags::syncAndroidClipBoundsWithOverflow() {
   return getAccessor().syncAndroidClipBoundsWithOverflow();
 }

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.h

@@ -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.
  *
- * @generated SignedSource<<0a8759cd09aa452417aaa3720da346ae>>
+ * @generated SignedSource<<2e63151422c43c51fe760dec4379bb73>>
  */
 
 /**
@@ -451,6 +451,11 @@ class ReactNativeFeatureFlags {
    */
   RN_EXPORT static bool skipUnchangedChildrenInDifferentiator();
 
+  /**
+   * Layout keeps the overflowInset of a node from its previous revision, instead of computing it again from its children, when neither the node nor its children changed.
+   */
+  RN_EXPORT static bool skipUnchangedOverflowInsetInLayout();
+
   /**
    * Override getClipBounds on Android views to return the padding box when overflow is hidden
    */