mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
f8e5423c89
Summary: `accessibilityElementsHidden` property hides a subtree starting from the node with this prop from VoiceOver and TalkBack, so the node with this prop should form the stacking context (otherwise the children will mount as siblings and the property will not have an effect). Changelog: [Internal] Fabric-specific internal change. Reviewed By: JoshuaGross Differential Revision: D23202220 fbshipit-source-id: d87dfab5f791219551c1eb90cdf3b3fa86f9c51f
83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
#include "ViewShadowNode.h"
|
|
#include <react/renderer/components/view/primitives.h>
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
char const ViewComponentName[] = "View";
|
|
|
|
ViewShadowNode::ViewShadowNode(
|
|
ShadowNodeFragment const &fragment,
|
|
ShadowNodeFamily::Shared const &family,
|
|
ShadowNodeTraits traits)
|
|
: ConcreteViewShadowNode(fragment, family, traits) {
|
|
initialize();
|
|
}
|
|
|
|
ViewShadowNode::ViewShadowNode(
|
|
ShadowNode const &sourceShadowNode,
|
|
ShadowNodeFragment const &fragment)
|
|
: ConcreteViewShadowNode(sourceShadowNode, fragment) {
|
|
initialize();
|
|
}
|
|
|
|
static bool isColorMeaningful(SharedColor const &color) noexcept {
|
|
if (!color) {
|
|
return false;
|
|
}
|
|
|
|
return colorComponentsFromColor(color).alpha > 0;
|
|
}
|
|
|
|
void ViewShadowNode::initialize() noexcept {
|
|
auto &viewProps = static_cast<ViewProps const &>(*props_);
|
|
|
|
bool formsStackingContext = !viewProps.collapsable ||
|
|
viewProps.pointerEvents == PointerEventsMode::None ||
|
|
!viewProps.nativeId.empty() || viewProps.accessible ||
|
|
viewProps.opacity != 1.0 || viewProps.transform != Transform{} ||
|
|
viewProps.elevation != 0 ||
|
|
(viewProps.zIndex.has_value() &&
|
|
viewProps.yogaStyle.positionType() == YGPositionTypeAbsolute) ||
|
|
viewProps.yogaStyle.display() == YGDisplayNone ||
|
|
viewProps.getClipsContentToBounds() ||
|
|
isColorMeaningful(viewProps.shadowColor) ||
|
|
viewProps.accessibilityElementsHidden ||
|
|
viewProps.importantForAccessibility != ImportantForAccessibility::Auto;
|
|
|
|
bool formsView = isColorMeaningful(viewProps.backgroundColor) ||
|
|
isColorMeaningful(viewProps.foregroundColor) ||
|
|
!(viewProps.yogaStyle.border() == YGStyle::Edges{});
|
|
|
|
formsView = formsView || formsStackingContext;
|
|
|
|
#ifdef ANDROID
|
|
// Force `formsStackingContext` trait for nodes which have `formsView`.
|
|
// TODO: T63560216 Investigate why/how `formsView` entangled with
|
|
// `formsStackingContext`.
|
|
formsStackingContext = formsStackingContext || formsView;
|
|
#endif
|
|
|
|
if (formsView) {
|
|
traits_.set(ShadowNodeTraits::Trait::FormsView);
|
|
} else {
|
|
traits_.unset(ShadowNodeTraits::Trait::FormsView);
|
|
}
|
|
|
|
if (formsStackingContext) {
|
|
traits_.set(ShadowNodeTraits::Trait::FormsStackingContext);
|
|
} else {
|
|
traits_.unset(ShadowNodeTraits::Trait::FormsStackingContext);
|
|
}
|
|
}
|
|
|
|
} // namespace react
|
|
} // namespace facebook
|