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https://github.com/zhigang1992/react-native.git
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1592acd4a9
Summary: Small changes to State objects to support Android. See following diffs. Reviewed By: mdvacca Differential Revision: D14663470 fbshipit-source-id: 878f4dc39265991a7b8ff54ca80bdb862f1dd3de
55 lines
1.2 KiB
C++
55 lines
1.2 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 <folly/dynamic.h>
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#include <react/core/StateCoordinator.h>
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namespace facebook {
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namespace react {
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class ShadowNode;
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/*
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* An abstract interface of State.
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* State is used to control and continuously advance a single vision of some
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* state (arbitrary data) associated with a family of shadow nodes.
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*/
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class State {
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public:
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using Shared = std::shared_ptr<const State>;
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State(StateCoordinator::Shared stateCoordinator);
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virtual ~State() = default;
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#ifdef ANDROID
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virtual const folly::dynamic getDynamic() const;
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virtual void updateState(folly::dynamic data) const;
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#endif
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protected:
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StateCoordinator::Shared stateCoordinator_;
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private:
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friend class ShadowNode;
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friend class StateCoordinator;
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/*
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* Must be used by `ShadowNode` *only*.
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*/
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void commit(const ShadowNode &shadowNode) const;
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/*
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* Must be used by `ShadowNode` *only*.
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*/
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const State::Shared &getCommitedState() const;
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};
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} // namespace react
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} // namespace facebook
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