react-native-macos/ReactCommon/fabric/uimanager/Scheduler.h

94 строки
2.5 KiB
C++

// Copyright (c) Facebook, Inc. and its 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 <mutex>
#include <fabric/core/ComponentDescriptor.h>
#include <fabric/core/LayoutConstraints.h>
#include <fabric/uimanager/ContextContainer.h>
#include <fabric/uimanager/SchedulerDelegate.h>
#include <fabric/uimanager/UIManagerDelegate.h>
#include <fabric/uimanager/ShadowTree.h>
#include <fabric/uimanager/ShadowTreeDelegate.h>
namespace facebook {
namespace react {
class FabricUIManager;
/*
* Scheduler coordinates Shadow Tree updates and event flows.
*/
class Scheduler final:
public UIManagerDelegate,
public ShadowTreeDelegate {
public:
Scheduler(const SharedContextContainer &contextContainer);
~Scheduler();
#pragma mark - Surface Management
void startSurface(
SurfaceId surfaceId,
const std::string &moduleName,
const folly::dynamic &initialProps
) const;
void stopSurface(SurfaceId surfaceId) const;
Size measureSurface(
SurfaceId surfaceId,
const LayoutConstraints &layoutConstraints,
const LayoutContext &layoutContext
) const;
void constraintSurfaceLayout(
SurfaceId surfaceId,
const LayoutConstraints &layoutConstraints,
const LayoutContext &layoutContext
) const;
#pragma mark - Delegate
/*
* Sets and gets the Scheduler's delegate.
* The delegate is stored as a raw pointer, so the owner must null
* the pointer before being destroyed.
*/
void setDelegate(SchedulerDelegate *delegate);
SchedulerDelegate *getDelegate() const;
#pragma mark - UIManagerDelegate
void uiManagerDidFinishTransaction(Tag rootTag, const SharedShadowNodeUnsharedList &rootChildNodes) override;
void uiManagerDidCreateShadowNode(const SharedShadowNode &shadowNode) override;
#pragma mark - ShadowTreeDelegate
void shadowTreeDidCommit(const ShadowTree &shadowTree, const ShadowViewMutationList &mutations) const override;
#pragma mark - Deprecated
/*
* UIManager instance must be temporarily exposed for registration purposes.
*/
std::shared_ptr<FabricUIManager> getUIManager_DO_NOT_USE();
private:
SchedulerDelegate *delegate_;
std::shared_ptr<FabricUIManager> uiManager_;
mutable std::mutex mutex_;
mutable std::unordered_map<SurfaceId, std::unique_ptr<ShadowTree>> shadowTreeRegistry_; // Protected by `mutex_`.
SharedEventDispatcher eventDispatcher_;
SharedContextContainer contextContainer_;
};
} // namespace react
} // namespace facebook