react-native/ReactCommon/fabric/components/view/ViewShadowNode.cpp

/**
 * 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"

namespace facebook {
namespace react {

const char ViewComponentName[] = "View";

bool ViewShadowNode::isLayoutOnly() const {
#ifdef ANDROID
  // This feature is not properly tested on Android yet.
  return false;
#else
  const auto &viewProps = *std::static_pointer_cast<const ViewProps>(props_);

  return
    // Event listeners
    !viewProps.onLayout &&
    // Generic Props
    viewProps.nativeId.empty() &&
    // Accessibility Props
    !viewProps.accessible &&
    // Style Props
    viewProps.yogaStyle.overflow == YGOverflowVisible &&
    viewProps.opacity == 1.0 &&
    !viewProps.backgroundColor &&
    !viewProps.foregroundColor &&
    !viewProps.shadowColor &&
    viewProps.transform == Transform {} &&
    viewProps.zIndex == 0 &&
    // Layout Metrics
    getLayoutMetrics().borderWidth == EdgeInsets {};
#endif
}

} // namespace react
} // namespace facebook