react-native-get-pixel_edit/node_modules/react-native/ReactCommon/react/renderer/timeline/TimelineController.h
2025-07-09 11:41:52 +09:00

76 lines
2.0 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <memory>
#include <shared_mutex>
#include <unordered_map>
#include <react/renderer/core/ReactPrimitives.h>
#include <react/renderer/timeline/Timeline.h>
#include <react/renderer/timeline/TimelineHandler.h>
#include <react/renderer/uimanager/UIManagerCommitHook.h>
namespace facebook::react {
/*
* Provides tools for introspecting the series of commits and associated
* side-effects, allowing to "rewind" UI to any particular commit from the past.
*/
class TimelineController final : public UIManagerCommitHook {
public:
using Shared = std::shared_ptr<const TimelineController>;
/*
* Creates a `TimelineHandler` associated with given `SurfaceId` and starts
* the introspection process.
*/
TimelineHandler enable(SurfaceId surfaceId) const;
/*
* Consumes and destroys a `TimelineHandler` instance triggering the
* destruction of all associated resources and stopping the introspection
* process.
*/
void disable(TimelineHandler&& handler) const;
/*
* TO BE DELETED.
*/
SurfaceId lastUpdatedSurface() const {
return lastUpdatedSurface_;
}
#pragma mark - UIManagerCommitHook
RootShadowNode::Unshared shadowTreeWillCommit(
const ShadowTree& shadowTree,
const RootShadowNode::Shared& oldRootShadowNode,
const RootShadowNode::Unshared& newRootShadowNode) noexcept override;
void commitHookWasRegistered(const UIManager& uiManager) noexcept override;
void commitHookWasUnregistered(const UIManager& uiManager) noexcept override;
private:
/*
* Protects all the data members.
*/
mutable std::shared_mutex timelinesMutex_;
/*
* Owning collection of all running `Timeline` instances.
*/
mutable std::unordered_map<SurfaceId, std::unique_ptr<Timeline>> timelines_;
mutable const UIManager* uiManager_;
mutable SurfaceId lastUpdatedSurface_;
};
} // namespace facebook::react