react-native/React/CoreModules/RCTPlatform.mm

/*
 * 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.
 */

#import "RCTPlatform.h"

#import <UIKit/UIKit.h>

#import <FBReactNativeSpec/FBReactNativeSpec.h>
#import <React/RCTUtils.h>
#import <React/RCTVersion.h>

#import "CoreModulesPlugins.h"

#import <optional>

using namespace facebook::react;

static NSString *interfaceIdiom(UIUserInterfaceIdiom idiom)
{
  switch (idiom) {
    case UIUserInterfaceIdiomPhone:
      return @"phone";
    case UIUserInterfaceIdiomPad:
      return @"pad";
    case UIUserInterfaceIdiomTV:
      return @"tv";
    case UIUserInterfaceIdiomCarPlay:
      return @"carplay";
    default:
      return @"unknown";
  }
}

@interface RCTPlatform () <NativePlatformConstantsIOSSpec>
@end

@implementation RCTPlatform

RCT_EXPORT_MODULE(PlatformConstants)

+ (BOOL)requiresMainQueueSetup
{
  return YES;
}

- (dispatch_queue_t)methodQueue
{
  return dispatch_get_main_queue();
}

// TODO: Use the generated struct return type.
- (ModuleConstants<JS::NativePlatformConstantsIOS::Constants>)constantsToExport
{
  return (ModuleConstants<JS::NativePlatformConstantsIOS::Constants>)[self getConstants];
}

- (ModuleConstants<JS::NativePlatformConstantsIOS::Constants>)getConstants
{
  __block ModuleConstants<JS::NativePlatformConstantsIOS::Constants> constants;
  RCTUnsafeExecuteOnMainQueueSync(^{
    UIDevice *device = [UIDevice currentDevice];
    auto versions = RCTGetReactNativeVersion();
    constants = typedConstants<JS::NativePlatformConstantsIOS::Constants>({
        .forceTouchAvailable = RCTForceTouchAvailable() ? true : false,
        .osVersion = [device systemVersion],
        .systemName = [device systemName],
        .interfaceIdiom = interfaceIdiom([device userInterfaceIdiom]),
        .isTesting = RCTRunningInTestEnvironment() ? true : false,
        .reactNativeVersion = JS::NativePlatformConstantsIOS::ConstantsReactNativeVersion::Builder(
            {.minor = [versions[@"minor"] doubleValue],
             .major = [versions[@"major"] doubleValue],
             .patch = [versions[@"patch"] doubleValue],
             .prerelease = [versions[@"prerelease"] isKindOfClass:[NSNull class]]
                 ? std::optional<double>{}
                 : [versions[@"prerelease"] doubleValue]}),
    });
  });

  return constants;
}

- (std::shared_ptr<TurboModule>)getTurboModule:(const ObjCTurboModule::InitParams &)params
{
  return std::make_shared<NativePlatformConstantsIOSSpecJSI>(params);
}

@end

Class RCTPlatformCls(void)
{
  return RCTPlatform.class;
}