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9842e39019
Summary: Our long-term plan is to completely illuminate `jsi::Value`-to-`folly::dynamic` serialization step in prop parsing process improving performance and memory pressure. At the same time, we don't want to introduce a hard dependency in application code to JSI because it exposes direct access to VM and prevents parsing some data that come *NOT* from JSVM. RawValue is an extremely light-weight (hopefully fully optimized-out) abstraction that provides limited JSON-like and C++-idiomatic interface. The current particular implementation is still using `folly::dynamic` inside, but I have fully JSI-powered one which will replace the current one right after we figure out how to deal with folly::dynamic-specific callsites. Or we can implement RawValue in a hybrid manner if a code-size implication of that will be minimal. Reviewed By: JoshuaGross, mdvacca Differential Revision: D13962466 fbshipit-source-id: e848522fd242f21e9e771773f2103f1c1d9d7f21
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#pragma once
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#include <folly/Optional.h>
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#include <folly/dynamic.h>
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#include <jsi/jsi.h>
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#include <react/core/ShadowNode.h>
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#include <react/uimanager/ComponentDescriptorRegistry.h>
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#include <react/uimanager/ShadowTreeRegistry.h>
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#include <react/uimanager/UIManagerDelegate.h>
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namespace facebook {
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namespace react {
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class UIManager {
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public:
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void setShadowTreeRegistry(ShadowTreeRegistry *shadowTreeRegistry);
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void setComponentDescriptorRegistry(
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const SharedComponentDescriptorRegistry &componentDescriptorRegistry);
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/*
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* Sets and gets the UIManager'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(UIManagerDelegate *delegate);
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UIManagerDelegate *getDelegate();
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private:
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friend class UIManagerBinding;
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SharedShadowNode createNode(
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Tag tag,
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const std::string &name,
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SurfaceId surfaceId,
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const RawProps &props,
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SharedEventTarget eventTarget) const;
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SharedShadowNode cloneNode(
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const SharedShadowNode &shadowNode,
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const SharedShadowNodeSharedList &children = nullptr,
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const RawProps *rawProps = nullptr) const;
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void appendChild(
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const SharedShadowNode &parentShadowNode,
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const SharedShadowNode &childShadowNode) const;
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void completeSurface(
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SurfaceId surfaceId,
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const SharedShadowNodeUnsharedList &rootChildren) const;
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void setNativeProps(
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const SharedShadowNode &shadowNode,
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const RawProps &rawProps) const;
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/*
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* Returns layout metrics of given `shadowNode` relative to
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* `ancestorShadowNode` (relative to the root node in case if provided
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* `ancestorShadowNode` is nullptr).
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*/
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LayoutMetrics getRelativeLayoutMetrics(
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const ShadowNode &shadowNode,
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const ShadowNode *ancestorShadowNode) const;
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ShadowTreeRegistry *shadowTreeRegistry_;
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SharedComponentDescriptorRegistry componentDescriptorRegistry_;
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UIManagerDelegate *delegate_;
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};
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} // namespace react
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} // namespace facebook
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