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node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaShadowView.h

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+/*
+ * 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.
+ */
+
+#import <React/RCTShadowView.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTSafeAreaShadowView : RCTShadowView
+
+@end
+
+NS_ASSUME_NONNULL_END

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaShadowView.m

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+/*
+ * 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.
+ */
+
+#import "RCTSafeAreaShadowView.h"
+
+#import <React/RCTAssert.h>
+#import <yoga/Yoga.h>
+
+#import "RCTSafeAreaViewLocalData.h"
+
+@implementation RCTSafeAreaShadowView
+
+- (void)setLocalData:(RCTSafeAreaViewLocalData *)localData
+{
+  RCTAssert(
+      [localData isKindOfClass:[RCTSafeAreaViewLocalData class]],
+      @"Local data object for `RCTSafeAreaShadowView` must be `RCTSafeAreaViewLocalData` instance.");
+
+  UIEdgeInsets insets = localData.insets;
+
+  super.paddingLeft = (YGValue){insets.left, YGUnitPoint};
+  super.paddingRight = (YGValue){insets.right, YGUnitPoint};
+  super.paddingTop = (YGValue){insets.top, YGUnitPoint};
+  super.paddingBottom = (YGValue){insets.bottom, YGUnitPoint};
+
+  [self didSetProps:@[ @"paddingLeft", @"paddingRight", @"paddingTop", @"paddingBottom" ]];
+}
+
+/**
+ * Removing support for setting padding from any outside code
+ * to prevent interferring this with local data.
+ */
+- (void)setPadding:(__unused YGValue)value
+{
+}
+- (void)setPaddingLeft:(__unused YGValue)value
+{
+}
+- (void)setPaddingRight:(__unused YGValue)value
+{
+}
+- (void)setPaddingTop:(__unused YGValue)value
+{
+}
+- (void)setPaddingBottom:(__unused YGValue)value
+{
+}
+
+@end

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaView.h

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+/*
+ * 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.
+ */
+
+#import <UIKit/UIKit.h>
+
+#import <React/RCTView.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class RCTBridge;
+
+@interface RCTSafeAreaView : RCTView
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge;
+
+@property (nonatomic, assign) BOOL emulateUnlessSupported;
+
+@end
+
+NS_ASSUME_NONNULL_END

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaView.m

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+/*
+ * 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.
+ */
+
+#import "RCTSafeAreaView.h"
+
+#import <React/RCTBridge.h>
+#import <React/RCTUIManager.h>
+
+#import "RCTSafeAreaViewLocalData.h"
+
+@implementation RCTSafeAreaView {
+  __weak RCTBridge *_bridge;
+  UIEdgeInsets _currentSafeAreaInsets;
+}
+
+- (instancetype)initWithBridge:(RCTBridge *)bridge
+{
+  if (self = [super initWithFrame:CGRectZero]) {
+    _bridge = bridge;
+    _emulateUnlessSupported = YES; // The default.
+  }
+
+  return self;
+}
+
+RCT_NOT_IMPLEMENTED(-(instancetype)initWithCoder : (NSCoder *)decoder)
+RCT_NOT_IMPLEMENTED(-(instancetype)initWithFrame : (CGRect)frame)
+
+- (NSString *)description
+{
+  NSString *superDescription = [super description];
+
+  // Cutting the last `>` character.
+  if (superDescription.length > 0 && [superDescription characterAtIndex:superDescription.length - 1] == '>') {
+    superDescription = [superDescription substringToIndex:superDescription.length - 1];
+  }
+
+  return [NSString stringWithFormat:@"%@; safeAreaInsets = %@; appliedSafeAreaInsets = %@>",
+                                    superDescription,
+                                    NSStringFromUIEdgeInsets([self safeAreaInsetsIfSupportedAndEnabled]),
+                                    NSStringFromUIEdgeInsets(_currentSafeAreaInsets)];
+}
+
+- (BOOL)isSupportedByOS
+{
+  return [self respondsToSelector:@selector(safeAreaInsets)];
+}
+
+- (UIEdgeInsets)safeAreaInsetsIfSupportedAndEnabled
+{
+#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
+  if (self.isSupportedByOS) {
+    if (@available(iOS 11.0, *)) {
+      return self.safeAreaInsets;
+    }
+  }
+#endif
+  return self.emulateUnlessSupported ? self.emulatedSafeAreaInsets : UIEdgeInsetsZero;
+}
+
+- (UIEdgeInsets)emulatedSafeAreaInsets
+{
+  UIViewController *vc = self.reactViewController;
+
+  if (!vc) {
+    return UIEdgeInsetsZero;
+  }
+
+  CGFloat topLayoutOffset = vc.topLayoutGuide.length;
+  CGFloat bottomLayoutOffset = vc.bottomLayoutGuide.length;
+  CGRect safeArea = vc.view.bounds;
+  safeArea.origin.y += topLayoutOffset;
+  safeArea.size.height -= topLayoutOffset + bottomLayoutOffset;
+  CGRect localSafeArea = [vc.view convertRect:safeArea toView:self];
+  UIEdgeInsets safeAreaInsets = UIEdgeInsetsMake(0, 0, 0, 0);
+  if (CGRectGetMinY(localSafeArea) > CGRectGetMinY(self.bounds)) {
+    safeAreaInsets.top = CGRectGetMinY(localSafeArea) - CGRectGetMinY(self.bounds);
+  }
+  if (CGRectGetMaxY(localSafeArea) < CGRectGetMaxY(self.bounds)) {
+    safeAreaInsets.bottom = CGRectGetMaxY(self.bounds) - CGRectGetMaxY(localSafeArea);
+  }
+
+  return safeAreaInsets;
+}
+
+static BOOL UIEdgeInsetsEqualToEdgeInsetsWithThreshold(UIEdgeInsets insets1, UIEdgeInsets insets2, CGFloat threshold)
+{
+  return ABS(insets1.left - insets2.left) <= threshold && ABS(insets1.right - insets2.right) <= threshold &&
+      ABS(insets1.top - insets2.top) <= threshold && ABS(insets1.bottom - insets2.bottom) <= threshold;
+}
+
+- (void)safeAreaInsetsDidChange
+{
+  [self invalidateSafeAreaInsets];
+}
+
+- (void)invalidateSafeAreaInsets
+{
+  [self setSafeAreaInsets:self.safeAreaInsetsIfSupportedAndEnabled];
+}
+
+- (void)layoutSubviews
+{
+  [super layoutSubviews];
+
+  if (!self.isSupportedByOS && self.emulateUnlessSupported) {
+    [self invalidateSafeAreaInsets];
+  }
+}
+
+- (void)setSafeAreaInsets:(UIEdgeInsets)safeAreaInsets
+{
+  if (UIEdgeInsetsEqualToEdgeInsetsWithThreshold(safeAreaInsets, _currentSafeAreaInsets, 1.0 / RCTScreenScale())) {
+    return;
+  }
+
+  _currentSafeAreaInsets = safeAreaInsets;
+
+  RCTSafeAreaViewLocalData *localData = [[RCTSafeAreaViewLocalData alloc] initWithInsets:safeAreaInsets];
+  [_bridge.uiManager setLocalData:localData forView:self];
+}
+
+- (void)setEmulateUnlessSupported:(BOOL)emulateUnlessSupported
+{
+  if (_emulateUnlessSupported == emulateUnlessSupported) {
+    return;
+  }
+
+  _emulateUnlessSupported = emulateUnlessSupported;
+
+  if ([self isSupportedByOS]) {
+    return;
+  }
+
+  [self invalidateSafeAreaInsets];
+}
+
+@end

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaViewLocalData.h

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+/*
+ * 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.
+ */
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTSafeAreaViewLocalData : NSObject
+
+- (instancetype)initWithInsets:(UIEdgeInsets)insets;
+
+@property (atomic, readonly) UIEdgeInsets insets;
+
+@end
+
+NS_ASSUME_NONNULL_END

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaViewLocalData.m

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+/*
+ * 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.
+ */
+
+#import "RCTSafeAreaViewLocalData.h"
+
+@implementation RCTSafeAreaViewLocalData
+
+- (instancetype)initWithInsets:(UIEdgeInsets)insets
+{
+  if (self = [super init]) {
+    _insets = insets;
+  }
+
+  return self;
+}
+
+@end

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaViewManager.h

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+/*
+ * 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.
+ */
+
+#import <React/RCTViewManager.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface RCTSafeAreaViewManager : RCTViewManager
+
+@end
+
+NS_ASSUME_NONNULL_END

node_modules/react-native/React/Views/SafeAreaView/RCTSafeAreaViewManager.m

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+/*
+ * 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.
+ */
+
+#import "RCTSafeAreaViewManager.h"
+
+#import "RCTSafeAreaShadowView.h"
+#import "RCTSafeAreaView.h"
+#import "RCTUIManager.h"
+
+@implementation RCTSafeAreaViewManager
+
+RCT_EXPORT_MODULE()
+
+RCT_EXPORT_VIEW_PROPERTY(emulateUnlessSupported, BOOL)
+
+- (UIView *)view
+{
+  return [[RCTSafeAreaView alloc] initWithBridge:self.bridge];
+}
+
+- (RCTSafeAreaShadowView *)shadowView
+{
+  return [RCTSafeAreaShadowView new];
+}
+
+@end