feat: Create PlatformContext TurboModule

android/CMakeLists.txt

@@ -9,7 +9,6 @@ add_library(
  react-native-mmkv
  SHARED
  src/main/cpp/AndroidLogger.cpp
- src/main/cpp/AndroidMmkvPlatformContext.cpp
  src/main/cpp/cpp-adapter.cpp
  ../cpp/MmkvHostObject.cpp
  ../cpp/NativeMmkvModule.cpp

android/src/main/java/com/mrousavy/mmkv/MmkvPackage.java

@@ -1,5 +1,6 @@
 package com.mrousavy.mmkv;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.facebook.react.bridge.NativeModule;
@@ -12,15 +13,32 @@
 import java.util.Map;
 
 public class MmkvPackage extends TurboReactPackage {
-
  @Nullable
  @Override
- public NativeModule getModule(String name, ReactApplicationContext reactContext) {
- return null;
+ public NativeModule getModule(String name, @NonNull ReactApplicationContext reactContext) {
+ if (name.equals(MmkvPlatformContextModule.NAME)) {
+ return new MmkvPlatformContextModule(reactContext);
+ } else {
+ return null;
+ }
  }
 
  @Override
  public ReactModuleInfoProvider getReactModuleInfoProvider() {
- return HashMap::new;
+ return () -> {
+ final Map<String, ReactModuleInfo> moduleInfos = new HashMap<>();
+ moduleInfos.put(
+ MmkvPlatformContextModule.NAME,
+ new ReactModuleInfo(
+ MmkvPlatformContextModule.NAME,
+ MmkvPlatformContextModule.NAME,
+ false, // canOverrideExistingModule
+ false, // needsEagerInit
+ true, // hasConstants
+ false, // isCxxModule
+ true // isTurboModule
+ ));
+ return moduleInfos;
+ };
  }
 }

android/src/main/java/com/mrousavy/mmkv/MmkvPlatformContextModule.java

@@ -0,0 +1,17 @@
+package com.mrousavy.mmkv;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+
+public class MmkvPlatformContextModule extends NativeMmkvPlatformContextSpec {
+ private final ReactApplicationContext context;
+
+ public MmkvPlatformContextModule(ReactApplicationContext reactContext) {
+ super(reactContext);
+ context = reactContext;
+ }
+
+ @Override
+ public String getBaseDirectory() {
+ return context.getFilesDir().getAbsolutePath() + "/mmkv";
+ }
+}

cpp/NativeMmkvModule.cpp

@@ -8,7 +8,6 @@
 #include "NativeMmkvModule.h"
 #include "Logger.h"
 #include "MmkvHostObject.h"
-#include "MmkvPlatformContext.h"
 
 #if __has_include("MMKV.h")
 #include "MMKV.h"
@@ -22,14 +21,7 @@ NativeMmkvModule::NativeMmkvModule(std::shared_ptr<CallInvoker> jsInvoker)
  : NativeMmkvCxxSpec(jsInvoker) {}
 
 bool NativeMmkvModule::initialize(jsi::Runtime& runtime,
- std::optional<std::string> customBasePath) {
- std::string basePath = MmkvPlatformContext::getDefaultBasePath();
- if (customBasePath.has_value()) {
- Logger::log("RNMMKV", "Default path is %s, but user specified a custom path: %s",
- basePath.c_str(), customBasePath.value().c_str());
- basePath = customBasePath.value();
- }
-
+ std::string basePath) {
  if (basePath.size() < 1) {
  throw jsi::JSError(runtime, "Path cannot be empty!");
  }

cpp/NativeMmkvModule.h

@@ -30,7 +30,7 @@ class NativeMmkvModule : public NativeMmkvCxxSpec<NativeMmkvModule> {
  NativeMmkvModule(std::shared_ptr<CallInvoker> jsInvoker);
  ~NativeMmkvModule();
 
- bool initialize(jsi::Runtime& runtime, std::optional<std::string> basePath);
+ bool initialize(jsi::Runtime& runtime, std::string basePath);
  jsi::Object createMMKV(jsi::Runtime& runtime, MMKVConfig config);
 };
 

src/NativeMmkv.ts

@@ -1,6 +1,7 @@
 import { NativeModules, Platform, TurboModule } from 'react-native';
 import { TurboModuleRegistry } from 'react-native';
 import { UnsafeObject } from 'react-native/Libraries/Types/CodegenTypes';
+import { PlatformContext } from './NativeMmkvPlatformContext';
 
 /**
  * Configures the mode of the MMKV instance.
@@ -71,11 +72,12 @@ export interface Configuration {
 }
 
 export interface Spec extends TurboModule {
- initialize(basePath: string | undefined): boolean;
+ initialize(basePath: string): boolean;
  createMMKV(configuration: Configuration): UnsafeObject;
 }
 
 let module: Spec | null = null;
+let basePath: string | null = null;
 
 /**
  * Get the MMKV TurboModule, and initialize it if this is the first time calling.
@@ -117,9 +119,13 @@ export function getMMKVTurboModule(): Spec {
  throw new Error(message);
  }
 
+ if (basePath == null) {
+ // Get base path from platform specific context
+ basePath = PlatformContext.getBaseDirectory();
+ }
+
  // Initialize MMKV
- const BASE_PATH: string | undefined = undefined;
- module.initialize(BASE_PATH);
+ module.initialize(basePath);
  }
 
  return module;

src/NativeMmkvPlatformContext.ts

@@ -0,0 +1,12 @@
+import { TurboModule, TurboModuleRegistry } from 'react-native';
+
+export interface Spec extends TurboModule {
+ /**
+ * Gets the base directory of the documents storage
+ */
+ getBaseDirectory(): string;
+}
+
+export const PlatformContext = TurboModuleRegistry.getEnforcing<Spec>(
+ 'MmkvPlatformContext'
+);