75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#pragma once
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#include <memory>
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#include <fabric/core/ComponentDescriptor.h>
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#include <fabric/core/LayoutConstraints.h>
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#include <fabric/uimanager/SchedulerDelegate.h>
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#include <fabric/uimanager/UIManagerDelegate.h>
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#include <fabric/view/ViewShadowNode.h>
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namespace facebook {
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namespace react {
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/*
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* We expect having a dedicated subclass for root shadow node.
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*/
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using SharedRootShadowNode = SharedViewShadowNode;
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using RootShadowNode = ViewShadowNode;
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class FabricUIManager;
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/*
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* Scheduler coordinates Shadow Tree updates and event flows.
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*/
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class Scheduler:
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public UIManagerDelegate {
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public:
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Scheduler();
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virtual ~Scheduler();
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#pragma mark - Root Nodes Managerment
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void registerRootTag(Tag rootTag);
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void unregisterRootTag(Tag rootTag);
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void setLayoutConstraints(Tag rootTag, LayoutConstraints layoutConstraints);
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#pragma mark - Delegate
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/*
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* Sets and gets the Scheduler's delegate.
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* The delegate is stored as a raw pointer, so the owner must null
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* the pointer before being destroyed.
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*/
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void setDelegate(SchedulerDelegate *delegate);
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SchedulerDelegate *getDelegate();
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#pragma mark - UIManagerDelegate
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void uiManagerDidFinishTransaction(Tag rootTag, const SharedShadowNodeUnsharedList &rootChildNodes) override;
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void uiManagerDidCreateShadowNode(const SharedShadowNode &shadowNode) override;
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#pragma mark - Deprecated
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/*
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* UIManager instance must be temporarily exposed for registration purposes.
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*/
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std::shared_ptr<FabricUIManager> getUIManager_DO_NOT_USE();
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private:
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SchedulerDelegate *delegate_;
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std::shared_ptr<FabricUIManager> uiManager_;
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/*
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* All commited `RootShadowNode` instances to differentiate against.
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*/
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std::unordered_map<Tag, SharedRootShadowNode> rootNodeRegistry_;
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};
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} // namespace react
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} // namespace facebook
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