amis-rpc-design/node_modules/react-native/ReactCommon/react/renderer/scheduler/SurfaceManager.h
2023-10-07 19:42:30 +08:00

69 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 <butter/map.h>
#include <mutex>
#include <shared_mutex>
#include <react/renderer/core/LayoutConstraints.h>
#include <react/renderer/mounting/MountingCoordinator.h>
#include <react/renderer/scheduler/SurfaceHandler.h>
namespace facebook {
namespace react {
/*
* `SurfaceManager` allows controlling React Native Surfaces via
* `SurfaceHandler` without using `SurfaceHandler` directly. `SurfaceManager`
* maintains a registry of `SurfaceHandler`s and allows to reference to them via
* a `SurfaceId`.
* The is supposed to be used during the transition period only.
*/
class SurfaceManager final {
public:
explicit SurfaceManager(Scheduler const &scheduler) noexcept;
#pragma mark - Surface Management
void startSurface(
SurfaceId surfaceId,
std::string const &moduleName,
folly::dynamic const &props,
LayoutConstraints const &layoutConstraints = {},
LayoutContext const &layoutContext = {}) const noexcept;
void stopSurface(SurfaceId surfaceId) const noexcept;
Size measureSurface(
SurfaceId surfaceId,
LayoutConstraints const &layoutConstraints,
LayoutContext const &layoutContext) const noexcept;
void constraintSurfaceLayout(
SurfaceId surfaceId,
LayoutConstraints const &layoutConstraints,
LayoutContext const &layoutContext) const noexcept;
MountingCoordinator::Shared findMountingCoordinator(
SurfaceId surfaceId) const noexcept;
private:
void visit(
SurfaceId surfaceId,
std::function<void(SurfaceHandler const &surfaceHandler)> const &callback)
const noexcept;
Scheduler const &scheduler_;
mutable std::shared_mutex mutex_; // Protects `registry_`.
mutable butter::map<SurfaceId, SurfaceHandler> registry_{};
};
} // namespace react
} // namespace facebook