mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
b2f267ac3b
Summary: This implements propagation of ScrollView's contentOffset value on Android. That allows `LayoutableShadowNode::getRelativeLayoutMetrics` (and some measure functions) return values that take that info into account. Changelog: [Internal] Fabric-specific internal change. Reviewed By: mdvacca Differential Revision: D19027433 fbshipit-source-id: 023ff9642d023971b3d24d5cc5f7c2f4b443031e
46 lines
1.0 KiB
C++
46 lines
1.0 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/graphics/Geometry.h>
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#include <folly/dynamic.h>
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namespace facebook {
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namespace react {
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/*
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* State for <ScrollView> component.
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*/
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class ScrollViewState final {
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public:
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Point contentOffset;
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Rect contentBoundingRect;
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/*
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* Returns size of scrollable area.
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*/
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Size getContentSize() const;
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#ifdef ANDROID
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ScrollViewState() = default;
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ScrollViewState(ScrollViewState const &previousState, folly::dynamic data)
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: contentOffset({(Float)data["contentOffsetLeft"].getDouble(),
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(Float)data["contentOffsetTop"].getDouble()}),
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contentBoundingRect({}){};
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folly::dynamic getDynamic() const {
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return folly::dynamic::object("contentOffsetLeft", contentOffset.x)(
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"contentOffsetTop", contentOffset.y);
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};
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#endif
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};
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} // namespace react
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} // namespace facebook
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