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* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
#import "AppDelegate.h"
#import "RCTRootView.h"
#import "RCTEventDispatcher.h"
#import "ABYServer.h"
#import "ABYContextManager.h"
#import "RCTContextExecutor.h"
This class exists so that a client-created `JSGlobalContextRef`
instance and optional JavaScript thread can be injected
into an `RCTContextExecutor`.
@interface ABYContextExecutor : RCTContextExecutor
Sets the JavaScript thread that will be used when `init`ing
an instance of this class. If not set, `[NSThread mainThread]`
will be used.
@param thread the thread
+(void) setJavaScriptThread:(NSThread*)thread;
Sets the context that will be used when `init`ing an instance
of this class.
@param context the context
+(void) setContext:(JSGlobalContextRef)context;
static NSThread* staticJavaScriptThread = nil;
static JSGlobalContextRef staticContext;
@implementation ABYContextExecutor
- (instancetype)init
id me = [self initWithJavaScriptThread:(staticJavaScriptThread ? staticJavaScriptThread : [NSThread mainThread])
staticJavaScriptThread = nil;
return me;
+(void) setJavaScriptThread:(NSThread*)thread
staticJavaScriptThread = thread;
+(void) setContext:(JSGlobalContextRef)context
staticContext = JSGlobalContextRetain(context);
@interface AppDelegate()
@property (strong, nonatomic) ABYServer* replServer;
@property (strong, nonatomic) ABYContextManager* contextManager;
@property (strong, nonatomic) NSURL* compilerOutputDirectory;
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
NSURL *jsCodeLocation;
* Loading JavaScript code - uncomment the one you want.
* Load from development server. Start the server from the repository root:
* $ npm start
* To run on device, change `localhost` to the IP address of your computer
* (you can get this by typing `ifconfig` into the terminal and selecting the
* `inet` value under `en0:`) and make sure your computer and iOS device are
* on the same Wi-Fi network.
jsCodeLocation = [NSURL URLWithString:@"http://localhost:8081/index.ios.bundle"];
* Load from pre-bundled file on disk. To re-generate the static bundle
* from the root of your project directory, run
* $ react-native bundle --minify
* see
// jsCodeLocation = [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
// Set up the ClojureScript compiler output directory
self.compilerOutputDirectory = [[self privateDocumentsDirectory] URLByAppendingPathComponent:@"cljs-out"];
// Set up our context manager
self.contextManager = [[ABYContextManager alloc] initWithContext:JSGlobalContextCreate(NULL)
// Inject our context using ABYContextExecutor
[ABYContextExecutor setContext:self.contextManager.context];
// Set React Native to intstantiate our ABYContextExecutor, doing this by slipping the executorClass
// assignement between alloc and initWithBundleURL:moduleProvider:launchOptions:
RCTBridge *bridge = [RCTBridge alloc];
bridge.executorClass = [ABYContextExecutor class];
bridge = [bridge initWithBundleURL:jsCodeLocation
// Set up a root view using the bridge defined above
RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
// Set up to be notified when the React Native UI is up
[[NSNotificationCenter defaultCenter] addObserver:self
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
UIViewController *rootViewController = [[UIViewController alloc] init];
rootViewController.view = rootView;
self.window.rootViewController = rootViewController;
[self.window makeKeyAndVisible];
return YES;
- (NSURL *)privateDocumentsDirectory
NSURL *libraryDirectory = [[[NSFileManager defaultManager] URLsForDirectory:NSLibraryDirectory inDomains:NSUserDomainMask] lastObject];
return [libraryDirectory URLByAppendingPathComponent:@"Private Documents"];
- (void)createDirectoriesUpTo:(NSURL*)directory
if (![[NSFileManager defaultManager] fileExistsAtPath:[directory path]]) {
NSError *error = nil;
if (![[NSFileManager defaultManager] createDirectoryAtPath:[directory path]
error:&error]) {
NSLog(@"Can't create directory %@ [%@]", [directory path], error);
[context evaluateScript:[NSString stringWithFormat:@"goog.require('%@');", [self munge:@"giiv.core"]]];
- (JSValue*)getValue:(NSString*)name inNamespace:(NSString*)namespace fromContext:(JSContext*)context
JSValue* namespaceValue = nil;
for (NSString* namespaceElement in [namespace componentsSeparatedByString: @"."]) {
if (namespaceValue) {
namespaceValue = namespaceValue[[self munge:namespaceElement]];
} else {
namespaceValue = context[[self munge:namespaceElement]];
return namespaceValue[[self munge:name]];
- (NSString*)munge:(NSString*)s
return [[[s stringByReplacingOccurrencesOfString:@"-" withString:@"_"]
stringByReplacingOccurrencesOfString:@"!" withString:@"_BANG_"]
stringByReplacingOccurrencesOfString:@"?" withString:@"_QMARK_"];
- (void)contentDidAppear
// Ensure private documents directory exists
[self createDirectoriesUpTo:[self privateDocumentsDirectory]];
// Copy resources from bundle "out" to compilerOutputDirectory
NSFileManager* fileManager = [NSFileManager defaultManager];
fileManager.delegate = self;
// First blow away old compiler output directory
[fileManager removeItemAtPath:self.compilerOutputDirectory.path error:nil];
// Copy files from bundle to compiler output driectory
NSString *outPath = [[NSBundle mainBundle] pathForResource:@"out" ofType:nil];
[fileManager copyItemAtPath:outPath toPath:self.compilerOutputDirectory.path error:nil];
[self.contextManager setUpAmblyImportScript];
NSString* mainJsFilePath = [[self.compilerOutputDirectory URLByAppendingPathComponent:@"main" isDirectory:NO] URLByAppendingPathExtension:@"js"].path;
NSURL* googDirectory = [self.compilerOutputDirectory URLByAppendingPathComponent:@"goog"];
[self.contextManager bootstrapWithDepsFilePath:mainJsFilePath
googBasePath:[[googDirectory URLByAppendingPathComponent:@"base" isDirectory:NO] URLByAppendingPathExtension:@"js"].path];
JSContext* context = [JSContext contextWithJSGlobalContextRef:self.contextManager.context];
[self requireAppNamespaces:context];
JSValue* initFn = [self getValue:@"init" inNamespace:@"giiv.core" fromContext:context];
NSAssert(!initFn.isUndefined, @"Could not find the app init function");
[initFn callWithArguments:@[]];
// Send a nonsense UI event to cause React Native to load our Om UI
RCTRootView* rootView = (RCTRootView*)self.window.rootViewController.view;
[rootView.bridge.modules[@"RCTEventDispatcher"] sendInputEventWithName:@"dummy" body:@{@"target": @1}];
// Now that React Native has been initialized, fire up our REPL server
self.replServer = [[ABYServer alloc] initWithContext:self.contextManager.context
[self.replServer startListening];
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