Introduce experimental image prefetching API

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -2760,6 +2760,7 @@ public class com/facebook/react/fabric/mounting/MountingManager {
 	public fun attachRootView (ILandroid/view/View;Lcom/facebook/react/uimanager/ThemedReactContext;)V
 	public fun clearJSResponder ()V
 	public fun enqueuePendingEvent (IILjava/lang/String;ZLcom/facebook/react/bridge/WritableMap;I)V
+	public fun experimental_prefetchResource (Lcom/facebook/react/bridge/ReactContext;Ljava/lang/String;IILcom/facebook/react/common/mapbuffer/MapBuffer;)V
 	public fun getEventEmitter (II)Lcom/facebook/react/fabric/events/EventEmitterWrapper;
 	public fun getSurfaceManager (I)Lcom/facebook/react/fabric/mounting/SurfaceMountingManager;
 	public fun getSurfaceManagerEnforced (ILjava/lang/String;)Lcom/facebook/react/fabric/mounting/SurfaceMountingManager;
@@ -5281,6 +5282,8 @@ public abstract class com/facebook/react/uimanager/ViewManager : com/facebook/re
 	public fun createView (ILcom/facebook/react/uimanager/ThemedReactContext;Lcom/facebook/react/uimanager/ReactStylesDiffMap;Lcom/facebook/react/uimanager/StateWrapper;Lcom/facebook/react/touch/JSResponderHandler;)Landroid/view/View;
 	protected fun createViewInstance (ILcom/facebook/react/uimanager/ThemedReactContext;Lcom/facebook/react/uimanager/ReactStylesDiffMap;Lcom/facebook/react/uimanager/StateWrapper;)Landroid/view/View;
 	protected abstract fun createViewInstance (Lcom/facebook/react/uimanager/ThemedReactContext;)Landroid/view/View;
+	protected fun experimental_isPrefetchingEnabled ()Z
+	public fun experimental_prefetchResource (Lcom/facebook/react/bridge/ReactContext;IILcom/facebook/react/common/mapbuffer/MapBuffer;)V
 	public fun getCommandsMap ()Ljava/util/Map;
 	protected fun getDelegate ()Lcom/facebook/react/uimanager/ViewManagerDelegate;
 	public fun getExportedCustomBubblingEventTypeConstants ()Ljava/util/Map;

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/MountingManager.java

@@ -427,6 +427,28 @@ public long measureMapBuffer(
             attachmentsPositions);
   }
 
+  /**
+   * @deprecated THIS PREFETCH METHOD IS EXPERIMENTAL, DO NOT USE IT FOR PRODUCTION CODE. IT WILL
+   *     MOST LIKELY CHANGE OR BE REMOVED IN THE FUTURE.
+   * @param reactContext
+   * @param componentName
+   * @param surfaceId {@link int} surface ID
+   * @param reactTag reactTag that should be set as ID of the view instance
+   * @param params {@link MapBuffer} prefetch request params defined in C++
+   */
+  @AnyThread
+  @Deprecated
+  public void experimental_prefetchResource(
+      ReactContext reactContext,
+      String componentName,
+      int surfaceId,
+      int reactTag,
+      MapBuffer params) {
+    mViewManagerRegistry
+        .get(componentName)
+        .experimental_prefetchResource(reactContext, surfaceId, reactTag, params);
+  }
+
   public void enqueuePendingEvent(
       int surfaceId,
       int reactTag,

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<<b1ad8179cf22c2e97f623435bf152aab>>
+ * @generated SignedSource<<6d8d8f4b81d7be882b315d0960499dcb>>
  */
 
 /**
@@ -130,6 +130,12 @@ public object ReactNativeFeatureFlags {
   @JvmStatic
   public fun enableIOSViewClipToPaddingBox(): Boolean = accessor.enableIOSViewClipToPaddingBox()
 
+  /**
+   * When enabled, Andoid will build and initiate image prefetch requests on ImageShadowNode::layout
+   */
+  @JvmStatic
+  public fun enableImagePrefetchingAndroid(): Boolean = accessor.enableImagePrefetchingAndroid()
+
   /**
    * When enabled, LayoutAnimations API will animate state changes on Android.
    */

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<<7dd21b62dfe429aecdbd179cb482fb26>>
+ * @generated SignedSource<<031fce8e8b4c20a3e3d6dbecf94d138a>>
  */
 
 /**
@@ -37,6 +37,7 @@ public class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAccesso
   private var enableFixForViewCommandRaceCache: Boolean? = null
   private var enableGranularShadowTreeStateReconciliationCache: Boolean? = null
   private var enableIOSViewClipToPaddingBoxCache: Boolean? = null
+  private var enableImagePrefetchingAndroidCache: Boolean? = null
   private var enableLayoutAnimationsOnAndroidCache: Boolean? = null
   private var enableLayoutAnimationsOnIOSCache: Boolean? = null
   private var enableLongTaskAPICache: Boolean? = null
@@ -219,6 +220,15 @@ public class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAccesso
     return cached
   }
 
+  override fun enableImagePrefetchingAndroid(): Boolean {
+    var cached = enableImagePrefetchingAndroidCache
+    if (cached == null) {
+      cached = ReactNativeFeatureFlagsCxxInterop.enableImagePrefetchingAndroid()
+      enableImagePrefetchingAndroidCache = cached
+    }
+    return cached
+  }
+
   override fun enableLayoutAnimationsOnAndroid(): Boolean {
     var cached = enableLayoutAnimationsOnAndroidCache
     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<<fcfded14a5fe05501892993c1f58f3ed>>
+ * @generated SignedSource<<35811667ac2543e1f64e27bbdb483ec1>>
  */
 
 /**
@@ -62,6 +62,8 @@ public object ReactNativeFeatureFlagsCxxInterop {
 
   @DoNotStrip @JvmStatic public external fun enableIOSViewClipToPaddingBox(): Boolean
 
+  @DoNotStrip @JvmStatic public external fun enableImagePrefetchingAndroid(): Boolean
+
   @DoNotStrip @JvmStatic public external fun enableLayoutAnimationsOnAndroid(): Boolean
 
   @DoNotStrip @JvmStatic public external fun enableLayoutAnimationsOnIOS(): 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<<86d8dd894e80a788af7f47172d30d33c>>
+ * @generated SignedSource<<9d829c58e49164a0b2b6b66bc0ce088a>>
  */
 
 /**
@@ -57,6 +57,8 @@ public open class ReactNativeFeatureFlagsDefaults : ReactNativeFeatureFlagsProvi
 
   override fun enableIOSViewClipToPaddingBox(): Boolean = false
 
+  override fun enableImagePrefetchingAndroid(): Boolean = false
+
   override fun enableLayoutAnimationsOnAndroid(): Boolean = false
 
   override fun enableLayoutAnimationsOnIOS(): Boolean = true

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<<4bb5173b9ba1d3e620f3a7d613b27ac7>>
+ * @generated SignedSource<<0121e113410a5b0e14eaf74a3076df2f>>
  */
 
 /**
@@ -41,6 +41,7 @@ public class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcces
   private var enableFixForViewCommandRaceCache: Boolean? = null
   private var enableGranularShadowTreeStateReconciliationCache: Boolean? = null
   private var enableIOSViewClipToPaddingBoxCache: Boolean? = null
+  private var enableImagePrefetchingAndroidCache: Boolean? = null
   private var enableLayoutAnimationsOnAndroidCache: Boolean? = null
   private var enableLayoutAnimationsOnIOSCache: Boolean? = null
   private var enableLongTaskAPICache: Boolean? = null
@@ -240,6 +241,16 @@ public class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcces
     return cached
   }
 
+  override fun enableImagePrefetchingAndroid(): Boolean {
+    var cached = enableImagePrefetchingAndroidCache
+    if (cached == null) {
+      cached = currentProvider.enableImagePrefetchingAndroid()
+      accessedFeatureFlags.add("enableImagePrefetchingAndroid")
+      enableImagePrefetchingAndroidCache = cached
+    }
+    return cached
+  }
+
   override fun enableLayoutAnimationsOnAndroid(): Boolean {
     var cached = enableLayoutAnimationsOnAndroidCache
     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<<2217f2b9992c9424c3d1d221bdfa2236>>
+ * @generated SignedSource<<2787d9027695dd14ec6b917a32a1a6de>>
  */
 
 /**
@@ -57,6 +57,8 @@ public interface ReactNativeFeatureFlagsProvider {
 
   @DoNotStrip public fun enableIOSViewClipToPaddingBox(): Boolean
 
+  @DoNotStrip public fun enableImagePrefetchingAndroid(): Boolean
+
   @DoNotStrip public fun enableLayoutAnimationsOnAndroid(): Boolean
 
   @DoNotStrip public fun enableLayoutAnimationsOnIOS(): Boolean

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/ViewManager.java

@@ -14,6 +14,7 @@
 import com.facebook.common.logging.FLog;
 import com.facebook.react.bridge.BaseJavaModule;
 import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContext;
 import com.facebook.react.bridge.ReadableArray;
 import com.facebook.react.bridge.ReadableMap;
 import com.facebook.react.common.mapbuffer.MapBuffer;
@@ -488,4 +489,25 @@ public void onSurfaceStopped(int surfaceId) {
       mRecyclableViews = new HashMap<>();
     }
   }
+
+  /**
+   * @deprecated THIS PREFETCH METHOD IS EXPERIMENTAL, DO NOT USE IT FOR PRODUCTION CODE, MOST
+   *     LIKELY IT WILL CHANGE OR BE REMOVED IN THE FUTURE.
+   *     <p>Subclasses can override this method to implement custom resource prefetching for the
+   *     ViewManager.
+   * @param reactContext {@link com.facebook.react.bridge.ReactContext} used for the view.
+   * @param surfaceId {@link int} surface ID
+   * @param reactTag reactTag that should be set as ID of the view instance
+   * @param params {@link MapBuffer} prefetch request params defined in C++
+   */
+  @Deprecated
+  public void experimental_prefetchResource(
+      ReactContext reactContext, int surfaceId, int reactTag, MapBuffer params) {
+    return;
+  }
+
+  @Deprecated
+  protected boolean experimental_isPrefetchingEnabled() {
+    return ReactNativeFeatureFlags.enableImagePrefetchingAndroid();
+  }
 }

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<<d5ccaecdf8cc2cf6144409658d9076ae>>
+ * @generated SignedSource<<902b269e45fcb4970c6f8a86818e1940>>
  */
 
 /**
@@ -141,6 +141,12 @@ class ReactNativeFeatureFlagsProviderHolder
     return method(javaProvider_);
   }
 
+  bool enableImagePrefetchingAndroid() override {
+    static const auto method =
+        getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("enableImagePrefetchingAndroid");
+    return method(javaProvider_);
+  }
+
   bool enableLayoutAnimationsOnAndroid() override {
     static const auto method =
         getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("enableLayoutAnimationsOnAndroid");
@@ -398,6 +404,11 @@ bool JReactNativeFeatureFlagsCxxInterop::enableIOSViewClipToPaddingBox(
   return ReactNativeFeatureFlags::enableIOSViewClipToPaddingBox();
 }
 
+bool JReactNativeFeatureFlagsCxxInterop::enableImagePrefetchingAndroid(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
+  return ReactNativeFeatureFlags::enableImagePrefetchingAndroid();
+}
+
 bool JReactNativeFeatureFlagsCxxInterop::enableLayoutAnimationsOnAndroid(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
   return ReactNativeFeatureFlags::enableLayoutAnimationsOnAndroid();
@@ -620,6 +631,9 @@ void JReactNativeFeatureFlagsCxxInterop::registerNatives() {
       makeNativeMethod(
         "enableIOSViewClipToPaddingBox",
         JReactNativeFeatureFlagsCxxInterop::enableIOSViewClipToPaddingBox),
+      makeNativeMethod(
+        "enableImagePrefetchingAndroid",
+        JReactNativeFeatureFlagsCxxInterop::enableImagePrefetchingAndroid),
       makeNativeMethod(
         "enableLayoutAnimationsOnAndroid",
         JReactNativeFeatureFlagsCxxInterop::enableLayoutAnimationsOnAndroid),

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<<0b07eaeba8112f65ecb18d53b7b893af>>
+ * @generated SignedSource<<17da0d7937c5c0c533293b86c8cdc9be>>
  */
 
 /**
@@ -81,6 +81,9 @@ class JReactNativeFeatureFlagsCxxInterop
   static bool enableIOSViewClipToPaddingBox(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 
+  static bool enableImagePrefetchingAndroid(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
+
   static bool enableLayoutAnimationsOnAndroid(
     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<<90e3ea3abb6f13c711aec3754ab03126>>
+ * @generated SignedSource<<ef215623465d45c563030d724287b1c9>>
  */
 
 /**
@@ -94,6 +94,10 @@ bool ReactNativeFeatureFlags::enableIOSViewClipToPaddingBox() {
   return getAccessor().enableIOSViewClipToPaddingBox();
 }
 
+bool ReactNativeFeatureFlags::enableImagePrefetchingAndroid() {
+  return getAccessor().enableImagePrefetchingAndroid();
+}
+
 bool ReactNativeFeatureFlags::enableLayoutAnimationsOnAndroid() {
   return getAccessor().enableLayoutAnimationsOnAndroid();
 }

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<<4544b1e206765808859ef84c2e6333a9>>
+ * @generated SignedSource<<f741660e4cf2528defe0ab1f61858aab>>
  */
 
 /**
@@ -124,6 +124,11 @@ class ReactNativeFeatureFlags {
    */
   RN_EXPORT static bool enableIOSViewClipToPaddingBox();
 
+  /**
+   * When enabled, Andoid will build and initiate image prefetch requests on ImageShadowNode::layout
+   */
+  RN_EXPORT static bool enableImagePrefetchingAndroid();
+
   /**
    * When enabled, LayoutAnimations API will animate state changes on Android.
    */