mirror of
https://github.com/status-im/react-native.git
synced 2025-01-17 21:11:45 +00:00
2a3025da97
Summary: This implements `EventHandlers` abstract class (aka "Events Guy") which encapsulates `eventDispatcher` and `instanceHandle` (and ownership of future `eventTarget`), all of this as part of existing {ShadowNode + Props + LayoutMetrics + LocalData + Descriptor + (and now) EventHandlers} infra. (We don't plan to add anything else to this model. Ever.)
Reviewed By: fkgozali
Differential Revision: D8053351
fbshipit-source-id: 1dd9ccbcbe5a2eb284b59ea351dc8beca645e8bf
78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include <memory>
|
|
|
|
#include <fabric/core/ComponentDescriptor.h>
|
|
#include <fabric/core/LayoutConstraints.h>
|
|
#include <fabric/uimanager/SchedulerDelegate.h>
|
|
#include <fabric/uimanager/SchedulerEventDispatcher.h>
|
|
#include <fabric/uimanager/UIManagerDelegate.h>
|
|
#include <fabric/uimanager/ShadowTree.h>
|
|
#include <fabric/uimanager/ShadowTreeDelegate.h>
|
|
#include <fabric/view/ViewShadowNode.h>
|
|
#include <fabric/view/RootShadowNode.h>
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
class FabricUIManager;
|
|
|
|
/*
|
|
* Scheduler coordinates Shadow Tree updates and event flows.
|
|
*/
|
|
class Scheduler final:
|
|
public UIManagerDelegate,
|
|
public ShadowTreeDelegate {
|
|
|
|
public:
|
|
|
|
Scheduler();
|
|
~Scheduler();
|
|
|
|
#pragma mark - Shadow Tree Management
|
|
|
|
void registerRootTag(Tag rootTag);
|
|
void unregisterRootTag(Tag rootTag);
|
|
|
|
Size measure(const Tag &rootTag, const LayoutConstraints &layoutConstraints, const LayoutContext &layoutContext) const;
|
|
void constraintLayout(const Tag &rootTag, const LayoutConstraints &layoutConstraints, const LayoutContext &layoutContext);
|
|
|
|
#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 SharedShadowTree &shadowTree, const TreeMutationInstructionList &instructions) 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_;
|
|
std::unordered_map<Tag, SharedShadowTree> shadowTreeRegistry_;
|
|
std::shared_ptr<SchedulerEventDispatcher> eventDispatcher_;
|
|
};
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|