mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
6a10feacda
Summary: Storing a strong shared pointer to `ComponentDescriptor` can cause a memory leak. Therefore we enforce all call sides and params to be weak pointers. The only Scheduler preserves a retaining pointer to it (to prevent preliminary deallocation). Reviewed By: sammy-SC Differential Revision: D17115540 fbshipit-source-id: fdea7d19f742ff04d5ba5470dd9748a5b226aa7c
56 lines
1.6 KiB
C++
56 lines
1.6 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 <glog/logging.h>
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#include <react/components/modal/ModalHostViewShadowNode.h>
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#include <react/core/ConcreteComponentDescriptor.h>
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namespace facebook {
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namespace react {
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/*
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* Descriptor for <BottomSheet> component.
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*/
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class ModalHostViewComponentDescriptor final
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: public ConcreteComponentDescriptor<ModalHostViewShadowNode> {
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public:
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#ifdef ANDROID
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ModalHostViewComponentDescriptor(EventDispatcher::Weak eventDispatcher)
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: ConcreteComponentDescriptor(eventDispatcher) {}
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#else
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using ConcreteComponentDescriptor::ConcreteComponentDescriptor;
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#endif
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void adopt(UnsharedShadowNode shadowNode) const override {
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assert(std::dynamic_pointer_cast<ModalHostViewShadowNode>(shadowNode));
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auto modalShadowNode =
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std::static_pointer_cast<ModalHostViewShadowNode>(shadowNode);
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assert(
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std::dynamic_pointer_cast<YogaLayoutableShadowNode>(modalShadowNode));
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auto layoutableShadowNode =
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std::static_pointer_cast<YogaLayoutableShadowNode>(modalShadowNode);
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auto state =
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std::static_pointer_cast<const ModalHostViewShadowNode::ConcreteState>(
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shadowNode->getState());
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auto stateData = state->getData();
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layoutableShadowNode->setSize(
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Size{stateData.screenSize.width, stateData.screenSize.height});
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layoutableShadowNode->setPositionType(YGPositionTypeAbsolute);
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ConcreteComponentDescriptor::adopt(shadowNode);
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}
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};
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} // namespace react
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} // namespace facebook
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