Migrate RCTEventEmitter to Kotlin (#48467)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/48467

# Changelog:
[Internal] -

As in the title.

Reviewed By: christophpurrer

Differential Revision: D67793304

fbshipit-source-id: 39bbdebf8434ad57bab3e1d309915a8132033f5b

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/interop/InteropEventEmitter.kt

@@ -31,12 +31,12 @@ public class InteropEventEmitter(private val reactContext: ReactContext) : RCTEv
   private var eventDispatcherOverride: EventDispatcher? = null
 
   @Deprecated("Deprecated in Java")
-  override fun receiveEvent(targetReactTag: Int, eventName: String, eventData: WritableMap?) {
+  override fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?) {
     val dispatcher: EventDispatcher? =
         eventDispatcherOverride
-            ?: UIManagerHelper.getEventDispatcherForReactTag(reactContext, targetReactTag)
+            ?: UIManagerHelper.getEventDispatcherForReactTag(reactContext, targetTag)
     val surfaceId = UIManagerHelper.getSurfaceId(reactContext)
-    dispatcher?.dispatchEvent(InteropEvent(eventName, eventData, surfaceId, targetReactTag))
+    dispatcher?.dispatchEvent(InteropEvent(eventName, params, surfaceId, targetTag))
   }
 
   @Deprecated("Deprecated in Java")

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

@@ -1,43 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-package com.facebook.react.uimanager.events;
-
-import androidx.annotation.Nullable;
-import com.facebook.proguard.annotations.DoNotStrip;
-import com.facebook.react.bridge.JavaScriptModule;
-import com.facebook.react.bridge.WritableArray;
-import com.facebook.react.bridge.WritableMap;
-
-/**
- * Paper JS interface to emit events from native to JS.
- *
- * <p>Deprecated in favor of RCTModernEventEmitter, which works with both the old and new renderer.
- */
-@DoNotStrip
-@Deprecated
-public interface RCTEventEmitter extends JavaScriptModule {
-  /**
-   * @param targetReactTag react tag of the view that receives the event
-   * @param eventName name of event
-   * @param event event params
-   * @deprecated Use RCTModernEventEmitter.receiveEvent instead
-   */
-  @Deprecated
-  void receiveEvent(int targetReactTag, String eventName, @Nullable WritableMap event);
-
-  /**
-   * Receive and process touches
-   *
-   * @param eventName JS event name
-   * @param touches active pointers data
-   * @param changedIndices indices of changed pointers
-   * @deprecated Dispatch the TouchEvent using {@link EventDispatcher} instead
-   */
-  @Deprecated
-  void receiveTouches(String eventName, WritableArray touches, WritableArray changedIndices);
-}

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/RCTEventEmitter.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.uimanager.events
+
+import com.facebook.proguard.annotations.DoNotStripAny
+import com.facebook.react.bridge.JavaScriptModule
+import com.facebook.react.bridge.WritableArray
+import com.facebook.react.bridge.WritableMap
+
+/**
+ * Paper JS interface to emit events from native to JS.
+ *
+ * Deprecated in favor of [RCTModernEventEmitter], which works with both the old and new renderer.
+ */
+@DoNotStripAny
+@Deprecated("Use [RCTModernEventEmitter] instead")
+public interface RCTEventEmitter : JavaScriptModule {
+  /**
+   * @param targetTag react tag of the view that receives the event
+   * @param eventName name of event
+   * @param params event params
+   */
+  @Deprecated("Use [RCTModernEventEmitter.receiveEvent] instead")
+  public fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?)
+
+  /**
+   * Receive and process touches
+   *
+   * @param eventName JS event name
+   * @param touches active pointers data
+   * @param changedIndices indices of changed pointers
+   */
+  @Deprecated("Dispatch the TouchEvent using [EventDispatcher] instead")
+  public fun receiveTouches(
+      eventName: String,
+      touches: WritableArray,
+      changedIndices: WritableArray
+  )
+}

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/uimanager/events/ReactEventEmitter.kt

@@ -45,8 +45,8 @@ internal class ReactEventEmitter(private val reactContext: ReactApplicationConte
   }
 
   @Deprecated("Please use RCTModernEventEmitter")
-  override fun receiveEvent(targetReactTag: Int, eventName: String, params: WritableMap?) {
-    receiveEvent(-1, targetReactTag, eventName, params)
+  override fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?) {
+    receiveEvent(-1, targetTag, eventName, params)
   }
 
   override fun receiveEvent(

packages/react-native/ReactAndroid/src/test/java/com/facebook/react/bridge/interop/FakeRCTEventEmitter.kt

@@ -18,7 +18,7 @@ import com.facebook.react.uimanager.events.RCTEventEmitter
 class FakeRCTEventEmitter : RCTEventEmitter {
 
   @Deprecated("Deprecated in Java")
-  override fun receiveEvent(targetReactTag: Int, eventName: String, event: WritableMap?) = Unit
+  override fun receiveEvent(targetTag: Int, eventName: String, params: WritableMap?) = Unit
 
   @Deprecated("Deprecated in Java")
   override fun receiveTouches(