73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
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// This source code is licensed under the MIT license found in the
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// LICENSE file in the root directory of this source tree.
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#pragma once
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#include <memory>
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#include <unordered_set>
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#include <vector>
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#include <cxxreact/JSExecutor.h>
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#include <folly/Optional.h>
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#include <folly/dynamic.h>
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#ifndef RN_EXPORT
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#define RN_EXPORT __attribute__((visibility("default")))
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#endif
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namespace facebook {
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namespace react {
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class NativeModule;
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struct ModuleConfig {
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size_t index;
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folly::dynamic config;
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};
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class RN_EXPORT ModuleRegistry {
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public:
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// not implemented:
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// onBatchComplete: see https://our.intern.facebook.com/intern/tasks/?t=5279396
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// getModule: only used by views
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// getAllModules: only used for cleanup; use RAII instead
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// notifyCatalystInstanceInitialized: this is really only used by view-related code
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// notifyCatalystInstanceDestroy: use RAII instead
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using ModuleNotFoundCallback = std::function<bool(const std::string &name)>;
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ModuleRegistry(std::vector<std::unique_ptr<NativeModule>> modules, ModuleNotFoundCallback callback = nullptr);
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void registerModules(std::vector<std::unique_ptr<NativeModule>> modules);
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std::vector<std::string> moduleNames();
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folly::Optional<ModuleConfig> getConfig(const std::string& name);
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void callNativeMethod(unsigned int moduleId, unsigned int methodId, folly::dynamic&& params, int callId);
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MethodCallResult callSerializableNativeHook(unsigned int moduleId, unsigned int methodId, folly::dynamic&& args);
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private:
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// This is always populated
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std::vector<std::unique_ptr<NativeModule>> modules_;
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// This is used to extend the population of modulesByName_ if registerModules is called after moduleNames
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void updateModuleNamesFromIndex(size_t size);
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// This is only populated if moduleNames() is called. Values are indices into modules_.
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std::unordered_map<std::string, size_t> modulesByName_;
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// This is populated with modules that are requested via getConfig but are unknown.
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// An error will be thrown if they are subsequently added to the registry.
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std::unordered_set<std::string> unknownModules_;
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// Function will be called if a module was requested but was not found.
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// If the function returns true, ModuleRegistry will try to find the module again (assuming it's registered)
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// If the functon returns false, ModuleRegistry will not try to find the module and return nullptr instead.
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ModuleNotFoundCallback moduleNotFoundCallback_;
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};
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}
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}
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