react-native/ReactCommon/cxxreact/JSExecutor.h

85 lines
2.5 KiB
C++

// Copyright 2004-present Facebook. All Rights Reserved.
#pragma once
#include <memory>
#include <string>
#include <cxxreact/NativeModule.h>
#include <folly/dynamic.h>
namespace facebook {
namespace react {
class JSBigString;
class JSExecutor;
class JSModulesUnbundle;
class MessageQueueThread;
class ModuleRegistry;
// This interface describes the delegate interface required by
// Executor implementations to call from JS into native code.
class ExecutorDelegate {
public:
virtual ~ExecutorDelegate() {}
virtual std::shared_ptr<ModuleRegistry> getModuleRegistry() = 0;
virtual void callNativeModules(
JSExecutor& executor, folly::dynamic&& calls, bool isEndOfBatch) = 0;
virtual MethodCallResult callSerializableNativeHook(
JSExecutor& executor, unsigned int moduleId, unsigned int methodId, folly::dynamic&& args) = 0;
};
class JSExecutorFactory {
public:
virtual std::unique_ptr<JSExecutor> createJSExecutor(
std::shared_ptr<ExecutorDelegate> delegate,
std::shared_ptr<MessageQueueThread> jsQueue) = 0;
virtual ~JSExecutorFactory() {}
};
class JSExecutor {
public:
/**
* Execute an application script bundle in the JS context.
*/
virtual void loadApplicationScript(std::unique_ptr<const JSBigString> script,
std::string sourceURL) = 0;
/**
* Add an application "unbundle" file
*/
virtual void setJSModulesUnbundle(std::unique_ptr<JSModulesUnbundle> bundle) = 0;
/**
* Executes BatchedBridge.callFunctionReturnFlushedQueue with the module ID,
* method ID and optional additional arguments in JS. The executor is responsible
* for using Bridge->callNativeModules to invoke any necessary native modules methods.
*/
virtual void callFunction(const std::string& moduleId, const std::string& methodId, const folly::dynamic& arguments) = 0;
/**
* Executes BatchedBridge.invokeCallbackAndReturnFlushedQueue with the cbID,
* and optional additional arguments in JS and returns the next queue. The executor
* is responsible for using Bridge->callNativeModules to invoke any necessary
* native modules methods.
*/
virtual void invokeCallback(const double callbackId, const folly::dynamic& arguments) = 0;
virtual void setGlobalVariable(std::string propName,
std::unique_ptr<const JSBigString> jsonValue) = 0;
virtual void* getJavaScriptContext() {
return nullptr;
}
#ifdef WITH_JSC_MEMORY_PRESSURE
virtual void handleMemoryPressure(int pressureLevel) {}
#endif
virtual void destroy() {}
virtual ~JSExecutor() {}
};
} }