mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
832164169d
Summary: Registries, providers, providers of registries, registres of providers. All that can be really confusing, but that represents best the constraints and desires that we have: * We need to be able to register components on-the-fly (so we need a mechanism that will propagate changes); * We don't want to register ComponentDescriptors separately from ComponentView classes; * C++ not always gives us abstractions that we want (e.g. pointers to constructors). After the change, we can remove the whole Buck target that has a bunch of handwritten boilerplate code. There is a still room for polish and removing some concepts, types or classes but this diff is already huge. Reviewed By: JoshuaGross Differential Revision: D14983906 fbshipit-source-id: ce536ebea0c905059c7a4d644dc25233e2809761
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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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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*/
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#pragma once
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#include <better/mutex.h>
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#include <react/core/ComponentDescriptor.h>
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#include <react/uimanager/ComponentDescriptorProvider.h>
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#include <react/uimanager/ComponentDescriptorRegistry.h>
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namespace facebook {
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namespace react {
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/*
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* Registry of `ComponentDescriptorProvider`s (and managed
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* `ComponentDescriptorRegistry`s). The class maintains a list of
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* `ComponentDescriptorRegistry`s (retaining pointers weakly) and update them
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* accordingly to changes in the provider registry.
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*/
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class ComponentDescriptorProviderRegistry final {
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public:
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/*
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* Adds (or removes) a `ComponentDescriptorProvider`s and update the managed
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* `ComponentDescriptorRegistry`s accordingly.
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*/
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void add(ComponentDescriptorProvider provider) const;
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void remove(ComponentDescriptorProvider provider) const;
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/*
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* Creates managed `ComponentDescriptorRegistry` based on a stored list of
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* `ComponentDescriptorProvider`s and given `ComponentDescriptorParameters`.
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*/
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ComponentDescriptorRegistry::Shared createComponentDescriptorRegistry(
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ComponentDescriptorParameters const ¶meters) const;
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private:
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mutable better::shared_mutex mutex_;
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mutable std::vector<std::weak_ptr<ComponentDescriptorRegistry const>>
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componentDescriptorRegistries_;
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mutable better::map<ComponentHandle, ComponentDescriptorProvider const>
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componentDescriptorProviders_;
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};
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} // namespace react
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} // namespace facebook
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