initial commit taken from gitlab.lrz.de

node_modules/react-native/Libraries/Text/VirtualText/RCTVirtualTextShadowView.h

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+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTBaseTextShadowView.h"
+
+@interface RCTVirtualTextShadowView : RCTBaseTextShadowView
+
+@end

node_modules/react-native/Libraries/Text/VirtualText/RCTVirtualTextShadowView.m

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+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTVirtualTextShadowView.h"
+
+#import <React/RCTShadowView+Layout.h>
+#import <yoga/Yoga.h>
+
+#import "RCTRawTextShadowView.h"
+
+@implementation RCTVirtualTextShadowView {
+  BOOL _isLayoutDirty;
+}
+
+#pragma mark - Life Cycle
+
+- (void)insertReactSubview:(RCTShadowView *)subview atIndex:(NSInteger)index
+{
+  [super insertReactSubview:subview atIndex:index];
+
+  [self dirtyLayout];
+
+  if (![subview isKindOfClass:[RCTVirtualTextShadowView class]]) {
+    YGNodeSetDirtiedFunc(subview.yogaNode, RCTVirtualTextShadowViewYogaNodeDirtied);
+  }
+
+}
+
+- (void)removeReactSubview:(RCTShadowView *)subview
+{
+  if (![subview isKindOfClass:[RCTVirtualTextShadowView class]]) {
+    YGNodeSetDirtiedFunc(subview.yogaNode, NULL);
+  }
+
+  [self dirtyLayout];
+
+  [super removeReactSubview:subview];
+}
+
+#pragma mark - Layout
+
+- (void)dirtyLayout
+{
+  [super dirtyLayout];
+
+  if (_isLayoutDirty) {
+    return;
+  }
+  _isLayoutDirty = YES;
+
+  [self.superview dirtyLayout];
+}
+
+- (void)clearLayout
+{
+  _isLayoutDirty = NO;
+}
+
+static void RCTVirtualTextShadowViewYogaNodeDirtied(YGNodeRef node)
+{
+  RCTShadowView *shadowView = (__bridge RCTShadowView *)YGNodeGetContext(node);
+
+  RCTVirtualTextShadowView *virtualTextShadowView =
+    (RCTVirtualTextShadowView *)shadowView.reactSuperview;
+
+  [virtualTextShadowView dirtyLayout];
+}
+
+@end

node_modules/react-native/Libraries/Text/VirtualText/RCTVirtualTextViewManager.h

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+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTBaseTextViewManager.h"
+
+@interface RCTVirtualTextViewManager : RCTBaseTextViewManager
+
+@end

node_modules/react-native/Libraries/Text/VirtualText/RCTVirtualTextViewManager.m

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+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTVirtualTextViewManager.h"
+
+#import "RCTVirtualTextShadowView.h"
+
+@implementation RCTVirtualTextViewManager
+
+RCT_EXPORT_MODULE(RCTVirtualText)
+
+- (UIView *)view
+{
+  return [UIView new];
+}
+
+- (RCTShadowView *)shadowView
+{
+  return [RCTVirtualTextShadowView new];
+}
+
+@end