Create option for out-of-tree platforms to customize ViewEventEmitter (…

…facebook#38582)

Summary:
Pull Request resolved: facebook#38582

Some out of tree platforms may have extra events (e.g., events for different input modalities) that don't exist on other platforms.

For example, react-native-windows and react-native-macos have `onKeyUp` and `onKeyDown` that can be emitted from any native component.

This change provides a hook for out of platforms to customize which events can be emitted from all native components.

## Changelog:
[General] [Added] - Support additional View events in out of tree platform Fabric implementations

Reviewed By: christophpurrer

Differential Revision: D47721603

fbshipit-source-id: 8ac5b4c26d738bf47c57cce6e1a437454de4253d

packages/react-native/ReactCommon/react/renderer/components/view/ViewEventEmitter.cpp → packages/react-native/ReactCommon/react/renderer/components/view/BaseViewEventEmitter.cpp

@@ -5,35 +5,36 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-#include "ViewEventEmitter.h"
+#include "BaseViewEventEmitter.h"
 
 namespace facebook::react {
 
 #pragma mark - Accessibility
 
-void ViewEventEmitter::onAccessibilityAction(std::string const &name) const {
+void BaseViewEventEmitter::onAccessibilityAction(
+    std::string const &name) const {
   dispatchEvent("accessibilityAction", [name](jsi::Runtime &runtime) {
     auto payload = jsi::Object(runtime);
     payload.setProperty(runtime, "actionName", name);
     return payload;
   });
 }
 
-void ViewEventEmitter::onAccessibilityTap() const {
+void BaseViewEventEmitter::onAccessibilityTap() const {
   dispatchEvent("accessibilityTap");
 }
 
-void ViewEventEmitter::onAccessibilityMagicTap() const {
+void BaseViewEventEmitter::onAccessibilityMagicTap() const {
   dispatchEvent("magicTap");
 }
 
-void ViewEventEmitter::onAccessibilityEscape() const {
+void BaseViewEventEmitter::onAccessibilityEscape() const {
   dispatchEvent("accessibilityEscape");
 }
 
 #pragma mark - Layout
 
-void ViewEventEmitter::onLayout(const LayoutMetrics &layoutMetrics) const {
+void BaseViewEventEmitter::onLayout(const LayoutMetrics &layoutMetrics) const {
   // A copy of a shared pointer (`layoutEventState_`) establishes shared
   // ownership that will be captured by lambda.
   auto layoutEventState = layoutEventState_;

packages/react-native/ReactCommon/react/renderer/components/view/ViewEventEmitter.h → packages/react-native/ReactCommon/react/renderer/components/view/BaseViewEventEmitter.h

@@ -17,11 +17,7 @@
 
 namespace facebook::react {
 
-class ViewEventEmitter;
-
-using SharedViewEventEmitter = std::shared_ptr<const ViewEventEmitter>;
-
-class ViewEventEmitter : public TouchEventEmitter {
+class BaseViewEventEmitter : public TouchEventEmitter {
  public:
   using TouchEventEmitter::TouchEventEmitter;
 

packages/react-native/ReactCommon/react/renderer/components/view/platform/android/react/renderer/components/view/ViewEventEmitter.h

@@ -0,0 +1,15 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <react/renderer/components/view/BaseViewEventEmitter.h>
+
+namespace facebook::react {
+using ViewEventEmitter = BaseViewEventEmitter;
+using SharedViewEventEmitter = std::shared_ptr<const ViewEventEmitter>;
+} // namespace facebook::react

packages/react-native/ReactCommon/react/renderer/components/view/platform/common/react/renderer/components/view/ViewEventEmitter.h

@@ -0,0 +1,15 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <react/renderer/components/view/BaseViewEventEmitter.h>
+
+namespace facebook::react {
+using ViewEventEmitter = BaseViewEventEmitter;
+using SharedViewEventEmitter = std::shared_ptr<const ViewEventEmitter>;
+} // namespace facebook::react