/* * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ #pragma once #include #include #include namespace facebook { namespace react { /* * Descriptor for component. */ class SliderComponentDescriptor final : public ConcreteComponentDescriptor { public: SliderComponentDescriptor(ComponentDescriptorParameters const ¶meters) : ConcreteComponentDescriptor(parameters), imageManager_(std::make_shared(contextContainer_)), measurementsManager_( SliderMeasurementsManager::shouldMeasureSlider() ? std::make_shared(contextContainer_) : nullptr) {} void adopt(ShadowNode::Unshared const &shadowNode) const override { ConcreteComponentDescriptor::adopt(shadowNode); auto sliderShadowNode = std::static_pointer_cast(shadowNode); // `SliderShadowNode` uses `ImageManager` to initiate image loading and // communicate the loading state and results to mounting layer. sliderShadowNode->setImageManager(imageManager_); if (measurementsManager_) { // `SliderShadowNode` uses `SliderMeasurementsManager` to // provide measurements to Yoga. sliderShadowNode->setSliderMeasurementsManager(measurementsManager_); // All `SliderShadowNode`s must have leaf Yoga nodes with properly // setup measure function. sliderShadowNode->enableMeasurement(); } } private: const SharedImageManager imageManager_; const std::shared_ptr measurementsManager_; }; } // namespace react } // namespace facebook