Introduce ComponentNameResolverManager and ComponentNameResolver classes

Summary:
This diff introduces the ComponentNameResolverManager and ComponentNameResolver classes. The purpose of these classes is to integrate NativeComponentRegistryBinding into RN Android

changelog: [internal] internal

Reviewed By: JoshuaGross

Differential Revision: D26716899

fbshipit-source-id: c62fb5c38ddce5325890d2506a6fb17d26043175

ReactAndroid/src/main/java/com/facebook/react/fabric/ComponentNameResolver.java

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) Facebook, Inc. and its 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.fabric;
+
+import com.facebook.proguard.annotations.DoNotStrip;
+
+@DoNotStrip
+public interface ComponentNameResolver {
+
+  /* returns a list of all the component names that are registered in React Native. */
+  String[] getComponentNames();
+}

ReactAndroid/src/main/java/com/facebook/react/fabric/ComponentNameResolverManager.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) Facebook, Inc. and its 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.fabric;
+
+import com.facebook.jni.HybridData;
+import com.facebook.proguard.annotations.DoNotStrip;
+import com.facebook.react.bridge.RuntimeExecutor;
+
+public class ComponentNameResolverManager {
+
+  static {
+    FabricSoLoader.staticInit();
+  }
+
+  @DoNotStrip
+  @SuppressWarnings("unused")
+  private final HybridData mHybridData;
+
+  public ComponentNameResolverManager(
+      RuntimeExecutor runtimeExecutor, Object componentNameResolver) {
+    mHybridData = initHybrid(runtimeExecutor, componentNameResolver);
+    installJSIBindings();
+  }
+
+  private native HybridData initHybrid(
+      RuntimeExecutor runtimeExecutor, Object componentNameResolver);
+
+  private native void installJSIBindings();
+}

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/ComponentNameResolverManager.cpp

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#include <memory>
+#include <string>
+
+#include <fbjni/fbjni.h>
+#include <jsi/jsi.h>
+
+#include "ComponentNameResolverManager.h"
+
+#include <react/renderer/componentregistry/NativeComponentRegistryBinding.h>
+
+namespace facebook {
+namespace react {
+
+ComponentNameResolverManager::ComponentNameResolverManager(
+    jni::alias_ref<ComponentNameResolverManager::javaobject> jThis,
+    RuntimeExecutor runtimeExecutor,
+    jni::alias_ref<jobject> componentNameResolver)
+    : javaPart_(jni::make_global(jThis)),
+      runtimeExecutor_(runtimeExecutor),
+      componentNameResolver_(jni::make_global(componentNameResolver)) {}
+
+jni::local_ref<ComponentNameResolverManager::jhybriddata>
+ComponentNameResolverManager::initHybrid(
+    jni::alias_ref<jhybridobject> jThis,
+    jni::alias_ref<JRuntimeExecutor::javaobject> runtimeExecutor,
+    jni::alias_ref<jobject> componentNameResolver) {
+  return makeCxxInstance(
+      jThis, runtimeExecutor->cthis()->get(), componentNameResolver);
+}
+
+void ComponentNameResolverManager::registerNatives() {
+  registerHybrid({
+      makeNativeMethod("initHybrid", ComponentNameResolverManager::initHybrid),
+      makeNativeMethod(
+          "installJSIBindings",
+          ComponentNameResolverManager::installJSIBindings),
+  });
+}
+
+void ComponentNameResolverManager::installJSIBindings() {
+  runtimeExecutor_([thizz = this](jsi::Runtime &runtime) {
+    auto viewManagerProvider = [thizz](const std::string &name) -> bool {
+      if (thizz->componentNames_.size() == 0) {
+        static auto getComponentNames =
+            jni::findClassStatic(ComponentNameResolverManager::
+                                     ComponentNameResolverJavaDescriptor)
+                ->getMethod<jni::alias_ref<jtypeArray<jstring>>()>(
+                    "getComponentNames");
+
+        auto componentNamesJArray =
+            getComponentNames(thizz->componentNameResolver_.get());
+        auto len = componentNamesJArray->size();
+        for (size_t i = 0; i < len; i++) {
+          jni::local_ref<jstring> elem = (*componentNamesJArray)[i];
+          auto componentName = elem->toStdString();
+          thizz->componentNames_.insert(componentName);
+        }
+      }
+
+      return thizz->componentNames_.find(name) != thizz->componentNames_.end();
+    };
+
+    react::NativeComponentRegistryBinding::install(
+        runtime, std::move(viewManagerProvider));
+  });
+}
+
+} // namespace react
+} // namespace facebook

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/ComponentNameResolverManager.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) Facebook, Inc. and its 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 <ReactCommon/CallInvokerHolder.h>
+#include <ReactCommon/RuntimeExecutor.h>
+#include <fbjni/fbjni.h>
+#include <jsi/jsi.h>
+#include <react/jni/JRuntimeExecutor.h>
+#include <memory>
+#include <set>
+#include <unordered_map>
+
+using namespace facebook::jni;
+using namespace facebook::jsi;
+
+namespace facebook {
+namespace react {
+
+class ComponentNameResolverManager
+    : public jni::HybridClass<ComponentNameResolverManager> {
+ public:
+  static auto constexpr kJavaDescriptor =
+      "Lcom/facebook/react/fabric/ComponentNameResolverManager;";
+
+  constexpr static auto ComponentNameResolverJavaDescriptor =
+      "com/facebook/react/fabric/ComponentNameResolver";
+
+  static jni::local_ref<jhybriddata> initHybrid(
+      jni::alias_ref<jhybridobject> jThis,
+      jni::alias_ref<JRuntimeExecutor::javaobject> runtimeExecutor,
+      jni::alias_ref<jobject> componentNameResolver);
+
+  static void registerNatives();
+
+ private:
+  friend HybridBase;
+  jni::global_ref<ComponentNameResolverManager::javaobject> javaPart_;
+  RuntimeExecutor runtimeExecutor_;
+
+  jni::global_ref<jobject> componentNameResolver_;
+
+  std::set<std::string> componentNames_;
+
+  void installJSIBindings();
+
+  explicit ComponentNameResolverManager(
+      jni::alias_ref<ComponentNameResolverManager::jhybridobject> jThis,
+      RuntimeExecutor runtimeExecutor,
+      jni::alias_ref<jobject> componentNameResolver);
+};
+
+} // namespace react
+} // namespace facebook

ReactAndroid/src/main/java/com/facebook/react/fabric/jni/OnLoad.cpp

@@ -9,6 +9,7 @@
 
 #include "Binding.h"
 #include "ComponentFactory.h"
+#include "ComponentNameResolverManager.h"
 #include "CoreComponentsRegistry.h"
 #include "EventBeatManager.h"
 #include "EventEmitterWrapper.h"
@@ -21,6 +22,7 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *) {
     facebook::react::EventEmitterWrapper::registerNatives();
     facebook::react::StateWrapperImpl::registerNatives();
     facebook::react::ComponentFactory::registerNatives();
+    facebook::react::ComponentNameResolverManager::registerNatives();
     facebook::react::CoreComponentsRegistry::registerNatives();
   });
 }