97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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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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*/
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#pragma once
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#include <memory>
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#include <vector>
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#include <yoga/YGNode.h>
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#include <fabric/core/LayoutableShadowNode.h>
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#include <fabric/core/Sealable.h>
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#include <fabric/core/ShadowNode.h>
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#include <fabric/debug/DebugStringConvertible.h>
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#include <fabric/view/YogaStylableProps.h>
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namespace facebook {
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namespace react {
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class YogaLayoutableShadowNode;
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// We accept that Yoga node is highly mutable thing and we don't try to enforce immutability,
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// so it does not have `const` qualifier (and we mark it as `mutable` in the class).
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using SharedYogaNode = std::shared_ptr<YGNode>;
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using SharedYogaConfig = std::shared_ptr<YGConfig>;
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using SharedYogaLayoutableShadowNode = std::shared_ptr<const YogaLayoutableShadowNode>;
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using SharedYogaLayoutableShadowNodeList = std::vector<const SharedYogaLayoutableShadowNode>;
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using SharedYogaLayoutableShadowNodeSharedList = std::shared_ptr<const SharedYogaLayoutableShadowNodeList>;
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class YogaLayoutableShadowNode:
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public LayoutableShadowNode,
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public virtual DebugStringConvertible,
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public virtual Sealable {
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public:
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#pragma mark - Constructors
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YogaLayoutableShadowNode(
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const SharedYogaStylableProps &props,
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const SharedShadowNodeSharedList &children
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);
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YogaLayoutableShadowNode(
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const SharedYogaLayoutableShadowNode &shadowNode,
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const SharedYogaStylableProps &props = nullptr,
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const SharedShadowNodeSharedList &children = nullptr
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);
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#pragma mark - Mutating Methods
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/*
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* Connects `measureFunc` function of Yoga node with
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* `LayoutableShadowNode::measure()` method.
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*/
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void enableMeasurement();
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/*
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* Appends `child`'s Yoga node to the own Yoga node.
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* So, it complements `ShadowNode::appendChild(...)` functionality from Yoga
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* perspective.
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*/
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void appendChild(SharedYogaLayoutableShadowNode child);
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void cleanLayout() override;
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void dirtyLayout() override;
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bool getIsLayoutClean() const override;
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void setHasNewLayout(bool hasNewLayout) override;
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bool getHasNewLayout() const override;
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/*
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* Computes layout using Yoga layout engine.
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* See `LayoutableShadowNode` for more details.
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*/
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void layout(LayoutContext layoutContext) override;
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void layoutChildren(LayoutContext layoutContext) override;
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protected:
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mutable SharedYogaNode yogaNode_;
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private:
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static SharedYogaConfig suitableYogaConfig();
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static void setYogaNodeChildrenBasedOnShadowNodeChildren(YGNode &yogaNode, const SharedShadowNodeSharedList &children);
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static YGNode *yogaNodeCloneCallbackConnector(YGNode *oldYogaNode, YGNode *parentYogaNode, int childIndex);
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static YGSize yogaNodeMeasureCallbackConnector(YGNode *yogaNode, float width, YGMeasureMode widthMode, float height, YGMeasureMode heightMode);
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};
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} // namespace react
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} // namespace facebook
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