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c69313fc52
Summary: There is no need to make JS calls to start or stop React Native apps; Scheduler does it automatically. Yay! With this change (because we have to change Scheduler API) we are starting slow process migrating away from using term `reactRootTag` when we refer to running a ReactNative app (aka Surface). We will use `surfaceId` instead. We plan to slowly and gracefully retire `reactTag` term entity replacing it with several appropriate entities specific for particular usage, e.g. `viewId` (some id which makes sense for mounting), `surfaceId`, `nodeId` (unique id representing nodes which were cloned from the original one), or `eventTarget`. Reviewed By: mdvacca Differential Revision: D9999336 fbshipit-source-id: bbc7303c195b070b8c235c9ca35546d1dc693e98
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates.
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// This source code is licensed under the MIT license found in the
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// LICENSE file in the root directory of this source tree.
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#pragma once
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#include <memory>
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#include <mutex>
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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/ContextContainer.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/uimanager/ShadowTree.h>
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#include <fabric/uimanager/ShadowTreeDelegate.h>
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namespace facebook {
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namespace react {
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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 final:
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public UIManagerDelegate,
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public ShadowTreeDelegate {
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public:
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Scheduler(const SharedContextContainer &contextContainer);
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~Scheduler();
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#pragma mark - Surface Management
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void startSurface(
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SurfaceId surfaceId,
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const std::string &moduleName,
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const folly::dynamic &initialProps
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) const;
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void stopSurface(SurfaceId surfaceId) const;
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Size measureSurface(
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SurfaceId surfaceId,
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const LayoutConstraints &layoutConstraints,
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const LayoutContext &layoutContext
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) const;
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void constraintSurfaceLayout(
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SurfaceId surfaceId,
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const LayoutConstraints &layoutConstraints,
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const LayoutContext &layoutContext
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) const;
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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() const;
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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 - ShadowTreeDelegate
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void shadowTreeDidCommit(const ShadowTree &shadowTree, const ShadowViewMutationList &mutations) const 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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mutable std::mutex mutex_;
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mutable std::unordered_map<SurfaceId, std::unique_ptr<ShadowTree>> shadowTreeRegistry_; // Protected by `mutex_`.
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SharedEventDispatcher eventDispatcher_;
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SharedContextContainer contextContainer_;
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};
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} // namespace react
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} // namespace facebook
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