Move Reanimated availability check to JS side

packages/react-native-gesture-handler/android/noreanimated/src/main/java/com/swmansion/gesturehandler/ReanimatedProxy.kt

@@ -9,8 +9,4 @@ class ReanimatedProxy {
   fun <T : Event<T>> sendEvent(event: T, reactApplicationContext: ReactContext) {
     // no-op
   }
-
-  companion object {
-    const val REANIMATED_INSTALLED = false
-  }
 }

packages/react-native-gesture-handler/android/reanimated/src/main/java/com/swmansion/gesturehandler/ReanimatedProxy.kt

@@ -14,8 +14,4 @@ class ReanimatedProxy {
 
     reanimatedModule?.nodesManager?.onEventDispatch(event)
   }
-
-  companion object {
-    const val REANIMATED_INSTALLED = true
-  }
 }

packages/react-native-gesture-handler/android/src/main/java/com/swmansion/gesturehandler/react/RNGestureHandlerModule.kt

@@ -12,7 +12,6 @@ import com.facebook.react.turbomodule.core.interfaces.BindingsInstallerHolder
 import com.facebook.react.turbomodule.core.interfaces.TurboModuleWithJSIBindings
 import com.facebook.soloader.SoLoader
 import com.swmansion.gesturehandler.NativeRNGestureHandlerModuleSpec
-import com.swmansion.gesturehandler.ReanimatedProxy
 import com.swmansion.gesturehandler.core.GestureHandler
 import com.swmansion.gesturehandler.react.events.RNGestureHandlerEventDispatcher
 
@@ -29,6 +28,7 @@ class RNGestureHandlerModule(reactContext: ReactApplicationContext?) :
   @DoNotStrip
   @Suppress("unused")
   private var mHybridData: HybridData = initHybrid()
+  private var isReanimatedAvailable = false
   private var uiRuntimeDecorated = false
   private val registry: RNGestureHandlerRegistry
     get() = registries[moduleId]!!
@@ -62,7 +62,7 @@ class RNGestureHandlerModule(reactContext: ReactApplicationContext?) :
 
   @ReactMethod
   override fun createGestureHandler(handlerName: String, handlerTagDouble: Double, config: ReadableMap): Boolean {
-    if (ReanimatedProxy.REANIMATED_INSTALLED && !uiRuntimeDecorated) {
+    if (isReanimatedAvailable && !uiRuntimeDecorated) {
       uiRuntimeDecorated = decorateUIRuntime()
     }
 
@@ -124,6 +124,11 @@ class RNGestureHandlerModule(reactContext: ReactApplicationContext?) :
   @ReactMethod
   override fun flushOperations() = Unit
 
+  @ReactMethod
+  override fun setReanimatedAvailability() {
+    isReanimatedAvailable = true
+  }
+
   @DoNotStrip
   @Suppress("unused")
   fun setGestureHandlerState(handlerTag: Int, newState: Int) {

packages/react-native-gesture-handler/apple/RNGestureHandlerModule.mm

@@ -42,7 +42,6 @@ @implementation RNGestureHandlerModule {
   jsi::Runtime *_rnRuntime;
   int _moduleId;
 
-  bool _checkedIfReanimatedIsAvailable;
   bool _isReanimatedAvailable;
   bool _uiRuntimeDecorated;
 }
@@ -121,10 +120,6 @@ - (bool)installUIRuntimeBindings
 
 - (NSNumber *)createGestureHandler:(NSString *)handlerName handlerTag:(double)handlerTag config:(NSDictionary *)config
 {
-  if (!_checkedIfReanimatedIsAvailable) {
-    _isReanimatedAvailable = [self.moduleRegistry moduleForName:"ReanimatedModule"] != nil;
-  }
-
   if (_isReanimatedAvailable && !_uiRuntimeDecorated) {
     _uiRuntimeDecorated = [self installUIRuntimeBindings];
   }
@@ -191,6 +186,11 @@ - (void)flushOperations
   }];
 }
 
+- (void)setReanimatedAvailability
+{
+  _isReanimatedAvailable = YES;
+}
+
 - (void)setGestureState:(int)state forHandler:(int)handlerTag
 {
   if (RCTIsMainQueue()) {

packages/react-native-gesture-handler/src/handlers/gestures/reanimatedWrapper.ts

@@ -5,6 +5,7 @@ import {
   GestureUpdateEventWithHandlerData,
   SharedValue,
 } from '../../v3/types';
+import { NativeProxy } from '../../v3/NativeProxy';
 
 export type ReanimatedContext<THandlerData> = {
   lastUpdateEvent: GestureUpdateEventWithHandlerData<THandlerData> | undefined;
@@ -80,6 +81,7 @@ let Reanimated:
 
 try {
   Reanimated = require('react-native-reanimated');
+  NativeProxy.setReanimatedAvailability();
 } catch (e) {
   // When 'react-native-reanimated' is not available we want to quietly continue
   // @ts-ignore TS demands the variable to be initialized

packages/react-native-gesture-handler/src/specs/NativeRNGestureHandlerModule.ts

@@ -24,6 +24,7 @@ export interface Spec extends TurboModule {
   configureRelations: (handlerTag: Double, relations: Object) => void;
   dropGestureHandler: (handlerTag: Double) => void;
   flushOperations: () => void;
+  setReanimatedAvailability: () => void;
 }
 
 export default TurboModuleRegistry.getEnforcing<Spec>('RNGestureHandlerModule');

packages/react-native-gesture-handler/src/v3/NativeProxy.ts

@@ -51,4 +51,7 @@ export const NativeProxy = {
       RNGestureHandlerModule.configureRelations(handlerTag, relations);
     });
   },
+  setReanimatedAvailability: () => {
+    RNGestureHandlerModule.setReanimatedAvailability();
+  },
 } as const;