RCTObjcExecutor.mm
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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 "RCTObjcExecutor.h"
#import <React/RCTCxxUtils.h>
#import <React/RCTFollyConvert.h>
#import <React/RCTJavaScriptExecutor.h>
#import <React/RCTLog.h>
#import <React/RCTProfile.h>
#import <React/RCTUtils.h>
#import <cxxreact/JSBigString.h>
#import <cxxreact/JSExecutor.h>
#import <cxxreact/MessageQueueThread.h>
#import <cxxreact/ModuleRegistry.h>
#import <folly/json.h>
namespace facebook {
namespace react {
namespace {
class JSEException : public std::runtime_error {
public:
JSEException(NSError *error)
: runtime_error([[error description] UTF8String]) {}
};
class RCTObjcExecutor : public JSExecutor {
public:
RCTObjcExecutor(id<RCTJavaScriptExecutor> jse,
RCTJavaScriptCompleteBlock errorBlock,
std::shared_ptr<MessageQueueThread> jsThread,
std::shared_ptr<ExecutorDelegate> delegate)
: m_jse(jse)
, m_errorBlock(errorBlock)
, m_jsThread(std::move(jsThread))
, m_delegate(std::move(delegate))
{
m_jsCallback = ^(id json, NSError *error) {
if (error) {
// Do not use "m_errorBlock" here as the bridge might be in the middle
// of invalidation as a result of error handling and "this" can be
// already deallocated.
errorBlock(error);
return;
}
m_jsThread->runOnQueue([this, json]{
m_delegate->callNativeModules(*this, convertIdToFollyDynamic(json), true);
});
};
// Synchronously initialize the executor
[jse setUp];
folly::dynamic nativeModuleConfig = folly::dynamic::array;
auto moduleRegistry = m_delegate->getModuleRegistry();
for (const auto &name : moduleRegistry->moduleNames()) {
auto config = moduleRegistry->getConfig(name);
nativeModuleConfig.push_back(config ? config->config : nullptr);
}
folly::dynamic config =
folly::dynamic::object("remoteModuleConfig", std::move(nativeModuleConfig));
setGlobalVariable(
"__fbBatchedBridgeConfig",
std::make_unique<JSBigStdString>(folly::toJson(config)));
}
void loadApplicationScript(
std::unique_ptr<const JSBigString> script,
std::string sourceURL) override {
RCTProfileBeginFlowEvent();
[m_jse executeApplicationScript:[NSData dataWithBytes:script->c_str() length:script->size()]
sourceURL:[[NSURL alloc]
initWithString:@(sourceURL.c_str())]
onComplete:^(NSError *error) {
RCTProfileEndFlowEvent();
if (error) {
m_errorBlock(error);
return;
}
[m_jse flushedQueue:m_jsCallback];
}];
}
void setBundleRegistry(std::unique_ptr<RAMBundleRegistry>) override {
RCTAssert(NO, @"RAM bundles are not supported in RCTObjcExecutor");
}
void registerBundle(uint32_t bundleId, const std::string &bundlePath) override {
RCTAssert(NO, @"RAM bundles are not supported in RCTObjcExecutor");
}
void callFunction(const std::string &module, const std::string &method,
const folly::dynamic &arguments) override {
[m_jse callFunctionOnModule:@(module.c_str())
method:@(method.c_str())
arguments:convertFollyDynamicToId(arguments)
callback:m_jsCallback];
}
void invokeCallback(double callbackId, const folly::dynamic &arguments) override {
[m_jse invokeCallbackID:@(callbackId)
arguments:convertFollyDynamicToId(arguments)
callback:m_jsCallback];
}
virtual void setGlobalVariable(
std::string propName,
std::unique_ptr<const JSBigString> jsonValue) override {
[m_jse injectJSONText:@(jsonValue->c_str())
asGlobalObjectNamed:@(propName.c_str())
callback:m_errorBlock];
}
virtual std::string getDescription() override {
return [NSStringFromClass([m_jse class]) UTF8String];
}
private:
id<RCTJavaScriptExecutor> m_jse;
RCTJavaScriptCompleteBlock m_errorBlock;
std::shared_ptr<ExecutorDelegate> m_delegate;
std::shared_ptr<MessageQueueThread> m_jsThread;
RCTJavaScriptCallback m_jsCallback;
};
}
RCTObjcExecutorFactory::RCTObjcExecutorFactory(
id<RCTJavaScriptExecutor> jse, RCTJavaScriptCompleteBlock errorBlock)
: m_jse(jse)
, m_errorBlock(errorBlock) {}
std::unique_ptr<JSExecutor> RCTObjcExecutorFactory::createJSExecutor(
std::shared_ptr<ExecutorDelegate> delegate,
std::shared_ptr<MessageQueueThread> jsQueue) {
return std::unique_ptr<JSExecutor>(
new RCTObjcExecutor(m_jse, m_errorBlock, jsQueue, delegate));
}
}
}