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https://github.com/status-im/react-native.git
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34ea65e3d9
Summary: shergin mentioned that he'd like to move away from RTTI a bit and use explicit key strings for context container instances rather than relying on the `typeid`, so this does this. We also fatal with a useful error message if we get a collision, rather than failing silently. Reviewed By: shergin Differential Revision: D13384308 fbshipit-source-id: 0b06d7555b082be89e8f130c23e94be99749a7a3
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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 <react/components/image/ImageShadowNode.h>
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#include <react/core/ConcreteComponentDescriptor.h>
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#include <react/imagemanager/ImageManager.h>
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#include <react/uimanager/ContextContainer.h>
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namespace facebook {
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namespace react {
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/*
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* Descriptor for <Image> component.
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*/
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class ImageComponentDescriptor final
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: public ConcreteComponentDescriptor<ImageShadowNode> {
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public:
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ImageComponentDescriptor(
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SharedEventDispatcher eventDispatcher,
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const SharedContextContainer &contextContainer)
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: ConcreteComponentDescriptor(eventDispatcher),
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imageManager_(
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contextContainer
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? contextContainer->getInstance<SharedImageManager>(
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"ImageManager")
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: nullptr) {}
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void adopt(UnsharedShadowNode shadowNode) const override {
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ConcreteComponentDescriptor::adopt(shadowNode);
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assert(std::dynamic_pointer_cast<ImageShadowNode>(shadowNode));
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auto imageShadowNode =
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std::static_pointer_cast<ImageShadowNode>(shadowNode);
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// `ImageShadowNode` uses `ImageManager` to initiate image loading and
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// communicate the loading state and results to mounting layer.
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imageShadowNode->setImageManager(imageManager_);
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}
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private:
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const SharedImageManager imageManager_;
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};
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} // namespace react
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} // namespace facebook
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