43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
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/*
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* Copyright (c) Meta Platforms, Inc. and 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 <react/renderer/components/root/RootShadowNode.h>
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namespace facebook::react {
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class ShadowTree;
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class UIManager;
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/*
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* Implementing a commit hook allows to observe and alter Shadow Tree commits.
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*/
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class UIManagerCommitHook {
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public:
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/*
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* Called right after the commit hook is registered or unregistered.
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*/
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virtual void commitHookWasRegistered(const UIManager& uiManager) noexcept = 0;
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virtual void commitHookWasUnregistered(
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const UIManager& uiManager) noexcept = 0;
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/*
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* Called right before a `ShadowTree` commits a new tree.
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* The semantic of the method corresponds to a method of the same name
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* from `ShadowTreeDelegate`.
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*/
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virtual RootShadowNode::Unshared shadowTreeWillCommit(
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const ShadowTree& shadowTree,
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const RootShadowNode::Shared& oldRootShadowNode,
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const RootShadowNode::Unshared& newRootShadowNode) noexcept = 0;
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virtual ~UIManagerCommitHook() noexcept = default;
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};
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} // namespace facebook::react
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