yeet

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTAnimationDriver.h

@@ -0,0 +1,38 @@
+/*
+ * 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 <CoreGraphics/CoreGraphics.h>
+#import <Foundation/Foundation.h>
+
+#import <React/RCTBridgeModule.h>
+
+static CGFloat RCTSingleFrameInterval = (CGFloat)(1.0 / 60.0);
+
+@class RCTValueAnimatedNode;
+
+NS_ASSUME_NONNULL_BEGIN
+
+@protocol RCTAnimationDriver <NSObject>
+
+@property (nonatomic, readonly) NSNumber *animationId;
+@property (nonatomic, readonly) RCTValueAnimatedNode *valueNode;
+@property (nonatomic, readonly) BOOL animationHasBegun;
+@property (nonatomic, readonly) BOOL animationHasFinished;
+
+- (instancetype)initWithId:(NSNumber *)animationId
+                    config:(NSDictionary *)config
+                   forNode:(RCTValueAnimatedNode *)valueNode
+                  callBack:(nullable RCTResponseSenderBlock)callback;
+
+- (void)startAnimation;
+- (void)stepAnimationWithTime:(NSTimeInterval)currentTime;
+- (void)stopAnimation;
+- (void)resetAnimationConfig:(NSDictionary *)config;
+
+NS_ASSUME_NONNULL_END
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTDecayAnimation.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTAnimationDriver.h"
+
+@interface RCTDecayAnimation : NSObject<RCTAnimationDriver>
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTDecayAnimation.m

@@ -0,0 +1,128 @@
+/*
+ * 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/RCTDecayAnimation.h>
+
+#import <UIKit/UIKit.h>
+#import <React/RCTConvert.h>
+
+#import <React/RCTAnimationUtils.h>
+#import <React/RCTValueAnimatedNode.h>
+
+@interface RCTDecayAnimation ()
+
+@property (nonatomic, strong) NSNumber *animationId;
+@property (nonatomic, strong) RCTValueAnimatedNode *valueNode;
+@property (nonatomic, assign) BOOL animationHasBegun;
+@property (nonatomic, assign) BOOL animationHasFinished;
+
+@end
+
+@implementation RCTDecayAnimation
+{
+  CGFloat _velocity;
+  CGFloat _deceleration;
+  NSTimeInterval _frameStartTime;
+  CGFloat _fromValue;
+  CGFloat _lastValue;
+  NSInteger _iterations;
+  NSInteger _currentLoop;
+  RCTResponseSenderBlock _callback;
+}
+
+- (instancetype)initWithId:(NSNumber *)animationId
+                    config:(NSDictionary *)config
+                   forNode:(RCTValueAnimatedNode *)valueNode
+                  callBack:(nullable RCTResponseSenderBlock)callback
+{
+  if ((self = [super init])) {
+    _callback = [callback copy];
+    _animationId = animationId;
+    _valueNode = valueNode;
+    _fromValue = 0;
+    _lastValue = 0;
+    _velocity = [RCTConvert CGFloat:config[@"velocity"]]; // initial velocity
+    [self resetAnimationConfig:config];
+  }
+  return self;
+}
+
+- (void)resetAnimationConfig:(NSDictionary *)config
+{
+  NSNumber *iterations = [RCTConvert NSNumber:config[@"iterations"]] ?: @1;
+  _fromValue = _lastValue;
+  _deceleration = [RCTConvert CGFloat:config[@"deceleration"]];
+  _iterations = iterations.integerValue;
+  _currentLoop = 1;
+  _animationHasFinished = iterations.integerValue == 0;
+}
+
+RCT_NOT_IMPLEMENTED(- (instancetype)init)
+
+- (void)startAnimation
+{
+  _frameStartTime = -1;
+  _animationHasBegun = YES;
+}
+
+- (void)stopAnimation
+{
+  _valueNode = nil;
+  if (_callback) {
+    _callback(@[@{
+      @"finished": @(_animationHasFinished)
+    }]);
+  }
+}
+
+- (void)stepAnimationWithTime:(NSTimeInterval)currentTime
+{
+  if (!_animationHasBegun || _animationHasFinished) {
+    // Animation has not begun or animation has already finished.
+    return;
+  }
+
+  if (_frameStartTime == -1) {
+    // Since this is the first animation step, consider the start to be on the previous frame.
+    _frameStartTime = currentTime - RCTSingleFrameInterval;
+    if (_fromValue == _lastValue) {
+      // First iteration, assign _fromValue based on _valueNode.
+      _fromValue = _valueNode.value;
+    } else {
+      // Not the first iteration, reset _valueNode based on _fromValue.
+      [self updateValue:_fromValue];
+    }
+    _lastValue = _valueNode.value;
+  }
+
+  CGFloat value = _fromValue +
+    (_velocity / (1 - _deceleration)) *
+    (1 - exp(-(1 - _deceleration) * (currentTime - _frameStartTime) * 1000.0 / RCTAnimationDragCoefficient()));
+
+  [self updateValue:value];
+
+  if (fabs(_lastValue - value) < 0.1) {
+    if (_iterations == -1 || _currentLoop < _iterations) {
+      // Set _frameStartTime to -1 to reset instance variables on the next runAnimationStep.
+      _frameStartTime = -1;
+      _currentLoop++;
+    } else {
+      _animationHasFinished = true;
+      return;
+    }
+  }
+
+  _lastValue = value;
+}
+
+- (void)updateValue:(CGFloat)outputValue
+{
+  _valueNode.value = outputValue;
+  [_valueNode setNeedsUpdate];
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTEventAnimation.h

@@ -0,0 +1,21 @@
+/*
+ * 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/RCTEventDispatcher.h>
+
+#import "RCTValueAnimatedNode.h"
+
+@interface RCTEventAnimation : NSObject
+
+@property (nonatomic, readonly, weak) RCTValueAnimatedNode *valueNode;
+
+- (instancetype)initWithEventPath:(NSArray<NSString *> *)eventPath
+                        valueNode:(RCTValueAnimatedNode *)valueNode;
+
+- (void)updateWithEvent:(id<RCTEvent>)event;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTEventAnimation.m

@@ -0,0 +1,38 @@
+/*
+ * 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/RCTEventAnimation.h>
+
+@implementation RCTEventAnimation
+{
+  NSArray<NSString *> *_eventPath;
+}
+
+- (instancetype)initWithEventPath:(NSArray<NSString *> *)eventPath
+                        valueNode:(RCTValueAnimatedNode *)valueNode
+{
+  if ((self = [super init])) {
+    _eventPath = eventPath;
+    _valueNode = valueNode;
+  }
+  return self;
+}
+
+- (void)updateWithEvent:(id<RCTEvent>)event
+{
+  NSArray *args = event.arguments;
+  // Supported events args are in the following order: viewTag, eventName, eventData.
+  id currentValue = args[2];
+  for (NSString *key in _eventPath) {
+    currentValue = [currentValue valueForKey:key];
+  }
+
+  _valueNode.value = ((NSNumber *)currentValue).doubleValue;
+  [_valueNode setNeedsUpdate];
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTFrameAnimation.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTAnimationDriver.h"
+
+@interface RCTFrameAnimation : NSObject<RCTAnimationDriver>
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTFrameAnimation.m

@@ -0,0 +1,158 @@
+/*
+ * 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/RCTFrameAnimation.h>
+
+#import <UIKit/UIKit.h>
+
+#import <React/RCTConvert.h>
+#import <React/RCTDefines.h>
+
+#import <React/RCTAnimationUtils.h>
+#import <React/RCTValueAnimatedNode.h>
+
+@interface RCTFrameAnimation ()
+
+@property (nonatomic, strong) NSNumber *animationId;
+@property (nonatomic, strong) RCTValueAnimatedNode *valueNode;
+@property (nonatomic, assign) BOOL animationHasBegun;
+@property (nonatomic, assign) BOOL animationHasFinished;
+
+@end
+
+@implementation RCTFrameAnimation
+{
+  NSArray<NSNumber *> *_frames;
+  CGFloat _toValue;
+  CGFloat _fromValue;
+  CGFloat _lastPosition;
+  NSTimeInterval _animationStartTime;
+  NSTimeInterval _animationCurrentTime;
+  RCTResponseSenderBlock _callback;
+  NSInteger _iterations;
+  NSInteger _currentLoop;
+}
+
+- (instancetype)initWithId:(NSNumber *)animationId
+                    config:(NSDictionary *)config
+                   forNode:(RCTValueAnimatedNode *)valueNode
+                  callBack:(nullable RCTResponseSenderBlock)callback
+{
+  if ((self = [super init])) {
+    _animationId = animationId;
+    _lastPosition = _fromValue = valueNode.value;
+    _valueNode = valueNode;
+    _callback = [callback copy];
+    [self resetAnimationConfig:config];
+  }
+  return self;
+}
+
+- (void)resetAnimationConfig:(NSDictionary *)config
+{
+  NSNumber *toValue = [RCTConvert NSNumber:config[@"toValue"]] ?: @1;
+  NSArray<NSNumber *> *frames = [RCTConvert NSNumberArray:config[@"frames"]];
+  NSNumber *iterations = [RCTConvert NSNumber:config[@"iterations"]] ?: @1;
+
+  _fromValue = _lastPosition;
+  _toValue = toValue.floatValue;
+  _frames = [frames copy];
+  _animationStartTime = _animationCurrentTime = -1;
+  _animationHasFinished = iterations.integerValue == 0;
+  _iterations = iterations.integerValue;
+  _currentLoop = 1;
+}
+
+RCT_NOT_IMPLEMENTED(- (instancetype)init)
+
+- (void)startAnimation
+{
+  _animationStartTime = _animationCurrentTime = -1;
+  _animationHasBegun = YES;
+}
+
+- (void)stopAnimation
+{
+  _valueNode = nil;
+  if (_callback) {
+    _callback(@[@{
+      @"finished": @(_animationHasFinished)
+    }]);
+  }
+}
+
+- (void)stepAnimationWithTime:(NSTimeInterval)currentTime
+{
+  if (!_animationHasBegun || _animationHasFinished || _frames.count == 0) {
+    // Animation has not begun or animation has already finished.
+    return;
+  }
+
+  if (_animationStartTime == -1) {
+    _animationStartTime = _animationCurrentTime = currentTime;
+  }
+
+  _animationCurrentTime = currentTime;
+  NSTimeInterval currentDuration = (_animationCurrentTime - _animationStartTime) / RCTAnimationDragCoefficient();
+
+  // Determine how many frames have passed since last update.
+  // Get index of frames that surround the current interval
+  NSUInteger startIndex = floor(currentDuration / RCTSingleFrameInterval);
+  NSUInteger nextIndex = startIndex + 1;
+
+  if (nextIndex >= _frames.count) {
+    if (_iterations == -1 || _currentLoop < _iterations) {
+      // Looping, reset to the first frame value.
+      _animationStartTime = currentTime;
+      _currentLoop++;
+      NSNumber *firstValue = _frames.firstObject;
+      [self updateOutputWithFrameOutput:firstValue.doubleValue];
+    } else {
+      _animationHasFinished = YES;
+      // We are at the end of the animation
+      // Update value and flag animation has ended.
+      NSNumber *finalValue = _frames.lastObject;
+      [self updateOutputWithFrameOutput:finalValue.doubleValue];
+    }
+    return;
+  }
+
+  // Do a linear remap of the two frames to safeguard against variable framerates
+  NSNumber *fromFrameValue = _frames[startIndex];
+  NSNumber *toFrameValue = _frames[nextIndex];
+  NSTimeInterval fromInterval = startIndex * RCTSingleFrameInterval;
+  NSTimeInterval toInterval = nextIndex * RCTSingleFrameInterval;
+
+  // Interpolate between the individual frames to ensure the animations are
+  //smooth and of the proper duration regardless of the framerate.
+  CGFloat frameOutput = RCTInterpolateValue(currentDuration,
+                                            fromInterval,
+                                            toInterval,
+                                            fromFrameValue.doubleValue,
+                                            toFrameValue.doubleValue,
+                                            EXTRAPOLATE_TYPE_EXTEND,
+                                            EXTRAPOLATE_TYPE_EXTEND);
+
+  [self updateOutputWithFrameOutput:frameOutput];
+}
+
+- (void)updateOutputWithFrameOutput:(CGFloat)frameOutput
+{
+  CGFloat outputValue = RCTInterpolateValue(frameOutput,
+                                            0,
+                                            1,
+                                            _fromValue,
+                                            _toValue,
+                                            EXTRAPOLATE_TYPE_EXTEND,
+                                            EXTRAPOLATE_TYPE_EXTEND);
+
+  _lastPosition = outputValue;
+  _valueNode.value = outputValue;
+  [_valueNode setNeedsUpdate];
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTSpringAnimation.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTAnimationDriver.h"
+
+@interface RCTSpringAnimation : NSObject<RCTAnimationDriver>
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Drivers/RCTSpringAnimation.m

@@ -0,0 +1,214 @@
+/*
+ * 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/RCTSpringAnimation.h>
+
+#import <UIKit/UIKit.h>
+
+#import <React/RCTConvert.h>
+#import <React/RCTDefines.h>
+
+#import <React/RCTAnimationUtils.h>
+#import <React/RCTValueAnimatedNode.h>
+
+@interface RCTSpringAnimation ()
+
+@property (nonatomic, strong) NSNumber *animationId;
+@property (nonatomic, strong) RCTValueAnimatedNode *valueNode;
+@property (nonatomic, assign) BOOL animationHasBegun;
+@property (nonatomic, assign) BOOL animationHasFinished;
+
+@end
+
+const NSTimeInterval MAX_DELTA_TIME = 0.064;
+
+@implementation RCTSpringAnimation
+{
+  CGFloat _toValue;
+  CGFloat _fromValue;
+  BOOL _overshootClamping;
+  CGFloat _restDisplacementThreshold;
+  CGFloat _restSpeedThreshold;
+  CGFloat _stiffness;
+  CGFloat _damping;
+  CGFloat _mass;
+  CGFloat _initialVelocity;
+  NSTimeInterval _animationStartTime;
+  NSTimeInterval _animationCurrentTime;
+  RCTResponseSenderBlock _callback;
+
+  CGFloat _lastPosition;
+  CGFloat _lastVelocity;
+
+  NSInteger _iterations;
+  NSInteger _currentLoop;
+
+  NSTimeInterval _t; // Current time (startTime + dt)
+}
+
+- (instancetype)initWithId:(NSNumber *)animationId
+                    config:(NSDictionary *)config
+                   forNode:(RCTValueAnimatedNode *)valueNode
+                  callBack:(nullable RCTResponseSenderBlock)callback
+{
+  if ((self = [super init])) {
+    _animationId = animationId;
+    _lastPosition = valueNode.value;
+    _valueNode = valueNode;
+    _lastVelocity = [RCTConvert CGFloat:config[@"initialVelocity"]];
+    _callback = [callback copy];
+    [self resetAnimationConfig:config];
+  }
+  return self;
+}
+
+- (void)resetAnimationConfig:(NSDictionary *)config
+{
+  NSNumber *iterations = [RCTConvert NSNumber:config[@"iterations"]] ?: @1;
+  _toValue = [RCTConvert CGFloat:config[@"toValue"]];
+  _overshootClamping = [RCTConvert BOOL:config[@"overshootClamping"]];
+  _restDisplacementThreshold = [RCTConvert CGFloat:config[@"restDisplacementThreshold"]];
+  _restSpeedThreshold = [RCTConvert CGFloat:config[@"restSpeedThreshold"]];
+  _stiffness = [RCTConvert CGFloat:config[@"stiffness"]];
+  _damping = [RCTConvert CGFloat:config[@"damping"]];
+  _mass = [RCTConvert CGFloat:config[@"mass"]];
+  _initialVelocity = _lastVelocity;
+  _fromValue = _lastPosition;
+  _fromValue = _lastPosition;
+  _lastVelocity = _initialVelocity;
+  _animationHasFinished = iterations.integerValue == 0;
+  _iterations = iterations.integerValue;
+  _currentLoop = 1;
+  _animationStartTime = _animationCurrentTime = -1;
+  _animationHasBegun = YES;
+}
+
+RCT_NOT_IMPLEMENTED(- (instancetype)init)
+
+- (void)startAnimation
+{
+  _animationStartTime = _animationCurrentTime = -1;
+  _animationHasBegun = YES;
+}
+
+- (void)stopAnimation
+{
+  _valueNode = nil;
+  if (_callback) {
+    _callback(@[@{
+      @"finished": @(_animationHasFinished)
+    }]);
+  }
+}
+
+- (void)stepAnimationWithTime:(NSTimeInterval)currentTime
+{
+  if (!_animationHasBegun || _animationHasFinished) {
+    // Animation has not begun or animation has already finished.
+    return;
+  }
+
+  // calculate delta time
+  if(_animationStartTime == -1) {
+    _t = 0.0;
+    _animationStartTime = currentTime;
+  } else {
+    // Handle frame drops, and only advance dt by a max of MAX_DELTA_TIME
+    NSTimeInterval deltaTime = MIN(MAX_DELTA_TIME, currentTime - _animationCurrentTime);
+    _t = _t + deltaTime / RCTAnimationDragCoefficient();
+  }
+
+  // store the timestamp
+  _animationCurrentTime = currentTime;
+
+  CGFloat c = _damping;
+  CGFloat m = _mass;
+  CGFloat k = _stiffness;
+  CGFloat v0 = -_initialVelocity;
+
+  CGFloat zeta = c / (2 * sqrtf(k * m));
+  CGFloat omega0 = sqrtf(k / m);
+  CGFloat omega1 = omega0 * sqrtf(1.0 - (zeta * zeta));
+  CGFloat x0 = _toValue - _fromValue;
+
+  CGFloat position;
+  CGFloat velocity;
+  if (zeta < 1) {
+    // Under damped
+    CGFloat envelope = expf(-zeta * omega0 * _t);
+    position =
+      _toValue -
+      envelope *
+      ((v0 + zeta * omega0 * x0) / omega1 * sinf(omega1 * _t) +
+        x0 * cosf(omega1 * _t));
+    // This looks crazy -- it's actually just the derivative of the
+    // oscillation function
+    velocity =
+      zeta *
+        omega0 *
+        envelope *
+        (sinf(omega1 * _t) * (v0 + zeta * omega0 * x0) / omega1 +
+          x0 * cosf(omega1 * _t)) -
+      envelope *
+        (cosf(omega1 * _t) * (v0 + zeta * omega0 * x0) -
+          omega1 * x0 * sinf(omega1 * _t));
+  } else {
+    CGFloat envelope = expf(-omega0 * _t);
+    position = _toValue - envelope * (x0 + (v0 + omega0 * x0) * _t);
+    velocity =
+      envelope * (v0 * (_t * omega0 - 1) + _t * x0 * (omega0 * omega0));
+  }
+
+  _lastPosition = position;
+  _lastVelocity = velocity;
+
+  [self onUpdate:position];
+
+  // Conditions for stopping the spring animation
+  BOOL isOvershooting = NO;
+  if (_overshootClamping && _stiffness != 0) {
+    if (_fromValue < _toValue) {
+      isOvershooting = position > _toValue;
+    } else {
+      isOvershooting = position < _toValue;
+    }
+  }
+  BOOL isVelocity = ABS(velocity) <= _restSpeedThreshold;
+  BOOL isDisplacement = YES;
+  if (_stiffness != 0) {
+    isDisplacement = ABS(_toValue - position) <= _restDisplacementThreshold;
+  }
+
+  if (isOvershooting || (isVelocity && isDisplacement)) {
+    if (_stiffness != 0) {
+      // Ensure that we end up with a round value
+      if (_animationHasFinished) {
+        return;
+      }
+      [self onUpdate:_toValue];
+    }
+
+    if (_iterations == -1 || _currentLoop < _iterations) {
+      _lastPosition = _fromValue;
+      _lastVelocity = _initialVelocity;
+      // Set _animationStartTime to -1 to reset instance variables on the next animation step.
+      _animationStartTime = -1;
+      _currentLoop++;
+      [self onUpdate:_fromValue];
+    } else {
+      _animationHasFinished = YES;
+    }
+  }
+}
+
+- (void)onUpdate:(CGFloat)outputValue
+{
+  _valueNode.value = outputValue;
+  [_valueNode setNeedsUpdate];
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTAdditionAnimatedNode.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTAdditionAnimatedNode : RCTValueAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTAdditionAnimatedNode.m

@@ -0,0 +1,26 @@
+/*
+ * 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/RCTAdditionAnimatedNode.h>
+
+@implementation RCTAdditionAnimatedNode
+
+- (void)performUpdate
+{
+  [super performUpdate];
+  NSArray<NSNumber *> *inputNodes = self.config[@"input"];
+  if (inputNodes.count > 1) {
+    RCTValueAnimatedNode *parent1 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[0]];
+    RCTValueAnimatedNode *parent2 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[1]];
+    if ([parent1 isKindOfClass:[RCTValueAnimatedNode class]] &&
+        [parent2 isKindOfClass:[RCTValueAnimatedNode class]]) {
+      self.value = parent1.value + parent2.value;
+    }
+  }
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTAnimatedNode.h

@@ -0,0 +1,51 @@
+/*
+ * 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 <Foundation/Foundation.h>
+
+@class RCTNativeAnimatedNodesManager;
+
+@interface RCTAnimatedNode : NSObject
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config NS_DESIGNATED_INITIALIZER;
+
+@property (nonatomic, readonly) NSNumber *nodeTag;
+@property (nonatomic, weak) RCTNativeAnimatedNodesManager *manager;
+@property (nonatomic, copy, readonly) NSDictionary<NSString *, id> *config;
+
+@property (nonatomic, copy, readonly) NSMapTable<NSNumber *, RCTAnimatedNode *> *childNodes;
+@property (nonatomic, copy, readonly) NSMapTable<NSNumber *, RCTAnimatedNode *> *parentNodes;
+
+@property (nonatomic, readonly) BOOL needsUpdate;
+
+-(BOOL)isManagedByFabric;
+
+/**
+ * Marks a node and its children as needing update.
+ */
+- (void)setNeedsUpdate NS_REQUIRES_SUPER;
+
+/**
+ * The node will update its value if necessary and only after its parents have updated.
+ */
+- (void)updateNodeIfNecessary NS_REQUIRES_SUPER;
+
+/**
+ * Where the actual update code lives. Called internally from updateNodeIfNecessary
+ */
+- (void)performUpdate NS_REQUIRES_SUPER;
+
+- (void)addChild:(RCTAnimatedNode *)child NS_REQUIRES_SUPER;
+- (void)removeChild:(RCTAnimatedNode *)child NS_REQUIRES_SUPER;
+
+- (void)onAttachedToNode:(RCTAnimatedNode *)parent NS_REQUIRES_SUPER;
+- (void)onDetachedFromNode:(RCTAnimatedNode *)parent NS_REQUIRES_SUPER;
+
+- (void)detachNode NS_REQUIRES_SUPER;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTAnimatedNode.m

@@ -0,0 +1,128 @@
+/*
+ * 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/RCTAnimatedNode.h>
+
+#import <React/RCTDefines.h>
+
+@implementation RCTAnimatedNode
+{
+  NSMapTable<NSNumber *, RCTAnimatedNode *> *_childNodes;
+  NSMapTable<NSNumber *, RCTAnimatedNode *> *_parentNodes;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if ((self = [super init])) {
+    _nodeTag = tag;
+    _config = [config copy];
+  }
+  return self;
+}
+
+RCT_NOT_IMPLEMENTED(- (instancetype)init)
+
+- (NSMapTable<NSNumber *, RCTAnimatedNode *> *)childNodes
+{
+  return _childNodes;
+}
+
+- (NSMapTable<NSNumber *, RCTAnimatedNode *> *)parentNodes
+{
+  return _parentNodes;
+}
+
+- (void)addChild:(RCTAnimatedNode *)child
+{
+  if (!_childNodes) {
+    _childNodes = [NSMapTable strongToWeakObjectsMapTable];
+  }
+  if (child) {
+    [_childNodes setObject:child forKey:child.nodeTag];
+    [child onAttachedToNode:self];
+  }
+}
+
+- (void)removeChild:(RCTAnimatedNode *)child
+{
+  if (!_childNodes) {
+    return;
+  }
+  if (child) {
+    [_childNodes removeObjectForKey:child.nodeTag];
+    [child onDetachedFromNode:self];
+  }
+}
+
+- (void)onAttachedToNode:(RCTAnimatedNode *)parent
+{
+  if (!_parentNodes) {
+    _parentNodes = [NSMapTable strongToWeakObjectsMapTable];
+  }
+  if (parent) {
+    [_parentNodes setObject:parent forKey:parent.nodeTag];
+  }
+}
+
+- (void)onDetachedFromNode:(RCTAnimatedNode *)parent
+{
+  if (!_parentNodes) {
+    return;
+  }
+  if (parent) {
+    [_parentNodes removeObjectForKey:parent.nodeTag];
+  }
+}
+
+- (void)detachNode
+{
+  for (RCTAnimatedNode *parent in _parentNodes.objectEnumerator) {
+    [parent removeChild:self];
+  }
+  for (RCTAnimatedNode *child in _childNodes.objectEnumerator) {
+    [self removeChild:child];
+  }
+}
+
+- (void)setNeedsUpdate
+{
+  _needsUpdate = YES;
+  for (RCTAnimatedNode *child in _childNodes.objectEnumerator) {
+    [child setNeedsUpdate];
+  }
+}
+
+- (void)updateNodeIfNecessary
+{
+  if (_needsUpdate) {
+    for (RCTAnimatedNode *parent in _parentNodes.objectEnumerator) {
+      [parent updateNodeIfNecessary];
+    }
+    [self performUpdate];
+  }
+}
+
+- (void)performUpdate
+{
+  _needsUpdate = NO;
+  // To be overridden by subclasses
+  // This method is called on a node only if it has been marked for update
+  // during the current update loop
+}
+
+- (BOOL)isManagedByFabric
+{
+  for (RCTAnimatedNode *child in _childNodes.objectEnumerator) {
+    if ([child isManagedByFabric]) {
+      return YES;
+    }
+  }
+  return NO;
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTDiffClampAnimatedNode.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTDiffClampAnimatedNode : RCTValueAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTDiffClampAnimatedNode.m

@@ -0,0 +1,61 @@
+/*
+ * 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/RCTDiffClampAnimatedNode.h>
+
+#import <React/RCTLog.h>
+
+@implementation RCTDiffClampAnimatedNode
+{
+  NSNumber *_inputNodeTag;
+  CGFloat _min;
+  CGFloat _max;
+  CGFloat _lastValue;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if (self = [super initWithTag:tag config:config]) {
+    _inputNodeTag = config[@"input"];
+    _min = [config[@"min"] floatValue];
+    _max = [config[@"max"] floatValue];
+  }
+
+  return self;
+}
+
+- (void)onAttachedToNode:(RCTAnimatedNode *)parent
+{
+  [super onAttachedToNode:parent];
+
+  self.value = _lastValue = [self inputNodeValue];
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  CGFloat value = [self inputNodeValue];
+
+  CGFloat diff = value - _lastValue;
+  _lastValue = value;
+  self.value = MIN(MAX(self.value + diff, _min), _max);
+}
+
+- (CGFloat)inputNodeValue
+{
+  RCTValueAnimatedNode *inputNode = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:_inputNodeTag];
+  if (![inputNode isKindOfClass:[RCTValueAnimatedNode class]]) {
+    RCTLogError(@"Illegal node ID set as an input for Animated.DiffClamp node");
+    return 0;
+  }
+
+  return inputNode.value;
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTDivisionAnimatedNode.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTDivisionAnimatedNode : RCTValueAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTDivisionAnimatedNode.m

@@ -0,0 +1,33 @@
+/*
+ * 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/RCTDivisionAnimatedNode.h>
+
+#import <React/RCTLog.h>
+
+@implementation RCTDivisionAnimatedNode
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  NSArray<NSNumber *> *inputNodes = self.config[@"input"];
+  if (inputNodes.count > 1) {
+    RCTValueAnimatedNode *parent1 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[0]];
+    RCTValueAnimatedNode *parent2 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[1]];
+    if ([parent1 isKindOfClass:[RCTValueAnimatedNode class]] &&
+        [parent2 isKindOfClass:[RCTValueAnimatedNode class]]) {
+      if (parent2.value == 0) {
+        RCTLogError(@"Detected a division by zero in Animated.divide node");
+        return;
+      }
+      self.value = parent1.value / parent2.value;
+    }
+  }
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTInterpolationAnimatedNode.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTInterpolationAnimatedNode : RCTValueAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTInterpolationAnimatedNode.m

@@ -0,0 +1,171 @@
+/*
+ * 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/RCTInterpolationAnimatedNode.h>
+
+#import <React/RCTAnimationUtils.h>
+
+static NSRegularExpression *regex;
+
+@implementation RCTInterpolationAnimatedNode
+{
+  __weak RCTValueAnimatedNode *_parentNode;
+  NSArray<NSNumber *> *_inputRange;
+  NSArray<NSNumber *> *_outputRange;
+  NSArray<NSArray<NSNumber *> *> *_outputs;
+  NSArray<NSString *> *_soutputRange;
+  NSString *_extrapolateLeft;
+  NSString *_extrapolateRight;
+  NSUInteger _numVals;
+  bool _hasStringOutput;
+  bool _shouldRound;
+  NSArray<NSTextCheckingResult*> *_matches;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    NSString *fpRegex = @"[+-]?(\\d+\\.?\\d*|\\.\\d+)([eE][+-]?\\d+)?";
+    regex = [NSRegularExpression regularExpressionWithPattern:fpRegex options:NSRegularExpressionCaseInsensitive error:nil];
+  });
+  if ((self = [super initWithTag:tag config:config])) {
+    _inputRange = [config[@"inputRange"] copy];
+    NSMutableArray *outputRange = [NSMutableArray array];
+    NSMutableArray *soutputRange = [NSMutableArray array];
+    NSMutableArray<NSMutableArray<NSNumber *> *> *_outputRanges = [NSMutableArray array];
+
+    _hasStringOutput = NO;
+    for (id value in config[@"outputRange"]) {
+      if ([value isKindOfClass:[NSNumber class]]) {
+        [outputRange addObject:value];
+      } else if ([value isKindOfClass:[NSString class]]) {
+        /**
+         * Supports string shapes by extracting numbers so new values can be computed,
+         * and recombines those values into new strings of the same shape.  Supports
+         * things like:
+         *
+         *   rgba(123, 42, 99, 0.36) // colors
+         *   -45deg                  // values with units
+         */
+        NSMutableArray *output = [NSMutableArray array];
+        [_outputRanges addObject:output];
+        [soutputRange addObject:value];
+
+        _matches = [regex matchesInString:value options:0 range:NSMakeRange(0, [value length])];
+        for (NSTextCheckingResult *match in _matches) {
+          NSString* strNumber = [value substringWithRange:match.range];
+          [output addObject:[NSNumber numberWithDouble:strNumber.doubleValue]];
+        }
+
+        _hasStringOutput = YES;
+        [outputRange addObject:[output objectAtIndex:0]];
+      }
+    }
+    if (_hasStringOutput) {
+      // ['rgba(0, 100, 200, 0)', 'rgba(50, 150, 250, 0.5)']
+      // ->
+      // [
+      //   [0, 50],
+      //   [100, 150],
+      //   [200, 250],
+      //   [0, 0.5],
+      // ]
+      _numVals = [_matches count];
+      NSString *value = [soutputRange objectAtIndex:0];
+      _shouldRound = [value containsString:@"rgb"];
+      _matches = [regex matchesInString:value options:0 range:NSMakeRange(0, [value length])];
+      NSMutableArray<NSMutableArray<NSNumber *> *> *outputs = [NSMutableArray arrayWithCapacity:_numVals];
+      NSUInteger size = [soutputRange count];
+      for (NSUInteger j = 0; j < _numVals; j++) {
+        NSMutableArray *output = [NSMutableArray arrayWithCapacity:size];
+        [outputs addObject:output];
+        for (int i = 0; i < size; i++) {
+          [output addObject:[[_outputRanges objectAtIndex:i] objectAtIndex:j]];
+        }
+      }
+      _outputs = [outputs copy];
+    }
+    _outputRange = [outputRange copy];
+    _soutputRange = [soutputRange copy];
+    _extrapolateLeft = config[@"extrapolateLeft"];
+    _extrapolateRight = config[@"extrapolateRight"];
+  }
+  return self;
+}
+
+- (void)onAttachedToNode:(RCTAnimatedNode *)parent
+{
+  [super onAttachedToNode:parent];
+  if ([parent isKindOfClass:[RCTValueAnimatedNode class]]) {
+    _parentNode = (RCTValueAnimatedNode *)parent;
+  }
+}
+
+- (void)onDetachedFromNode:(RCTAnimatedNode *)parent
+{
+  [super onDetachedFromNode:parent];
+  if (_parentNode == parent) {
+    _parentNode = nil;
+  }
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+  if (!_parentNode) {
+    return;
+  }
+
+  CGFloat inputValue = _parentNode.value;
+
+  CGFloat interpolated = RCTInterpolateValueInRange(inputValue,
+                                                    _inputRange,
+                                                    _outputRange,
+                                                    _extrapolateLeft,
+                                                    _extrapolateRight);
+  self.value = interpolated;
+  if (_hasStringOutput) {
+    // 'rgba(0, 100, 200, 0)'
+    // ->
+    // 'rgba(${interpolations[0](input)}, ${interpolations[1](input)}, ...'
+    if (_numVals > 1) {
+      NSString *text = _soutputRange[0];
+      NSMutableString *formattedText = [NSMutableString stringWithString:text];
+      NSUInteger i = _numVals;
+      for (NSTextCheckingResult *match in [_matches reverseObjectEnumerator]) {
+        CGFloat val = RCTInterpolateValueInRange(inputValue,
+                                                          _inputRange,
+                                                          _outputs[--i],
+                                                          _extrapolateLeft,
+                                                          _extrapolateRight);
+        NSString *str;
+        if (_shouldRound) {
+          // rgba requires that the r,g,b are integers.... so we want to round them, but we *dont* want to
+          // round the opacity (4th column).
+          bool isAlpha = i == 3;
+          CGFloat rounded = isAlpha ? round(val * 1000) / 1000 : round(val);
+          str = isAlpha ? [NSString stringWithFormat:@"%1.3f", rounded] : [NSString stringWithFormat:@"%1.0f", rounded];
+        } else {
+          NSNumber *numberValue = [NSNumber numberWithDouble:val];
+          str = [numberValue stringValue];
+        }
+
+        [formattedText replaceCharactersInRange:[match range] withString:str];
+      }
+      self.animatedObject = formattedText;
+    } else {
+      self.animatedObject = [regex stringByReplacingMatchesInString:_soutputRange[0]
+                                                 options:0
+                                                   range:NSMakeRange(0, _soutputRange[0].length)
+                                            withTemplate:[NSString stringWithFormat:@"%1f", interpolated]];
+    }
+  }
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTModuloAnimatedNode.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTModuloAnimatedNode : RCTValueAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTModuloAnimatedNode.m

@@ -0,0 +1,22 @@
+/*
+ * 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/RCTModuloAnimatedNode.h>
+
+@implementation RCTModuloAnimatedNode
+
+- (void)performUpdate
+{
+  [super performUpdate];
+  NSNumber *inputNode = self.config[@"input"];
+  NSNumber *modulus = self.config[@"modulus"];
+  RCTValueAnimatedNode *parent = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNode];
+  const float m = modulus.floatValue;
+  self.value = fmodf(fmodf(parent.value, m) + m, m);
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTMultiplicationAnimatedNode.h

@@ -0,0 +1,12 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTMultiplicationAnimatedNode : RCTValueAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTMultiplicationAnimatedNode.m

@@ -0,0 +1,27 @@
+/*
+ * 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/RCTMultiplicationAnimatedNode.h>
+
+@implementation RCTMultiplicationAnimatedNode
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  NSArray<NSNumber *> *inputNodes = self.config[@"input"];
+  if (inputNodes.count > 1) {
+    RCTValueAnimatedNode *parent1 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[0]];
+    RCTValueAnimatedNode *parent2 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[1]];
+    if ([parent1 isKindOfClass:[RCTValueAnimatedNode class]] &&
+        [parent2 isKindOfClass:[RCTValueAnimatedNode class]]) {
+      self.value = parent1.value * parent2.value;
+    }
+  }
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTPropsAnimatedNode.h

@@ -0,0 +1,23 @@
+/*
+ * 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 "RCTAnimatedNode.h"
+
+@class RCTBridge;
+@class RCTViewPropertyMapper;
+
+@interface RCTPropsAnimatedNode : RCTAnimatedNode
+
+- (void)connectToView:(NSNumber *)viewTag
+             viewName:(NSString *)viewName
+               bridge:(RCTBridge *)bridge;
+
+- (void)disconnectFromView:(NSNumber *)viewTag;
+
+- (void)restoreDefaultValues;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTPropsAnimatedNode.m

@@ -0,0 +1,133 @@
+/*
+ * 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/RCTPropsAnimatedNode.h>
+
+#import <React/RCTLog.h>
+#import <React/RCTSurfacePresenterStub.h>
+#import <React/RCTUIManager.h>
+
+#import <React/RCTAnimationUtils.h>
+#import <React/RCTStyleAnimatedNode.h>
+#import <React/RCTValueAnimatedNode.h>
+
+
+
+@implementation RCTPropsAnimatedNode
+{
+  NSNumber *_connectedViewTag;
+  NSNumber *_rootTag;
+  NSString *_connectedViewName;
+  __weak RCTBridge *_bridge;
+  NSMutableDictionary<NSString *, NSObject *> *_propsDictionary; // TODO: use RawProps or folly::dynamic directly
+  BOOL _managedByFabric;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if (self = [super initWithTag:tag config:config]) {
+    _propsDictionary = [NSMutableDictionary new];
+  }
+  return self;
+}
+
+- (BOOL)isManagedByFabric
+{
+  return _managedByFabric;
+}
+
+- (void)connectToView:(NSNumber *)viewTag
+             viewName:(NSString *)viewName
+               bridge:(RCTBridge *)bridge
+{
+  _bridge = bridge;
+  _connectedViewTag = viewTag;
+  _connectedViewName = viewName;
+  _managedByFabric = RCTUIManagerTypeForTagIsFabric(viewTag);
+  _rootTag = nil;
+}
+
+- (void)disconnectFromView:(NSNumber *)viewTag
+{
+  _bridge = nil;
+  _connectedViewTag = nil;
+  _connectedViewName = nil;
+  _managedByFabric = NO;
+  _rootTag = nil;
+}
+
+- (void)updateView
+{
+  if (_managedByFabric) {
+    [_bridge.surfacePresenter synchronouslyUpdateViewOnUIThread:_connectedViewTag
+                                                          props:_propsDictionary];
+  } else {
+    [_bridge.uiManager synchronouslyUpdateViewOnUIThread:_connectedViewTag
+                                                viewName:_connectedViewName
+                                                   props:_propsDictionary];
+  }
+}
+
+- (void)restoreDefaultValues
+{
+  // Restore the default value for all props that were modified by this node.
+  for (NSString *key in _propsDictionary.allKeys) {
+    _propsDictionary[key] = [NSNull null];
+  }
+
+  if (_propsDictionary.count) {
+    [self updateView];
+  }
+}
+
+- (NSString *)propertyNameForParentTag:(NSNumber *)parentTag
+{
+  __block NSString *propertyName;
+  [self.config[@"props"] enumerateKeysAndObjectsUsingBlock:^(NSString *_Nonnull property, NSNumber *_Nonnull tag, BOOL *_Nonnull stop) {
+    if ([tag isEqualToNumber:parentTag]) {
+      propertyName = property;
+      *stop = YES;
+    }
+  }];
+  return propertyName;
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  // Since we are updating nodes after detaching them from views there is a time where it's
+  // possible that the view was disconnected and still receive an update, this is normal and we can
+  // simply skip that update.
+  if (!_connectedViewTag) {
+    return;
+  }
+
+  for (NSNumber *parentTag in self.parentNodes.keyEnumerator) {
+    RCTAnimatedNode *parentNode = [self.parentNodes objectForKey:parentTag];
+    if ([parentNode isKindOfClass:[RCTStyleAnimatedNode class]]) {
+      [self->_propsDictionary addEntriesFromDictionary:[(RCTStyleAnimatedNode *)parentNode propsDictionary]];
+
+    } else if ([parentNode isKindOfClass:[RCTValueAnimatedNode class]]) {
+      NSString *property = [self propertyNameForParentTag:parentTag];
+      id animatedObject = [(RCTValueAnimatedNode *)parentNode animatedObject];
+      if (animatedObject) {
+        self->_propsDictionary[property] = animatedObject;
+      } else {
+        CGFloat value = [(RCTValueAnimatedNode *)parentNode value];
+        self->_propsDictionary[property] = @(value);
+      }
+    }
+  }
+
+  if (_propsDictionary.count) {
+    [self updateView];
+  }
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTStyleAnimatedNode.h

@@ -0,0 +1,14 @@
+/*
+ * 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 "RCTAnimatedNode.h"
+
+@interface RCTStyleAnimatedNode : RCTAnimatedNode
+
+- (NSDictionary<NSString *, NSObject *> *)propsDictionary;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTStyleAnimatedNode.m

@@ -0,0 +1,51 @@
+/*
+ * 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/RCTStyleAnimatedNode.h>
+#import <React/RCTAnimationUtils.h>
+#import <React/RCTValueAnimatedNode.h>
+#import <React/RCTTransformAnimatedNode.h>
+
+@implementation RCTStyleAnimatedNode
+{
+  NSMutableDictionary<NSString *, NSObject *> *_propsDictionary;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if ((self = [super initWithTag:tag config:config])) {
+    _propsDictionary = [NSMutableDictionary new];
+  }
+  return self;
+}
+
+- (NSDictionary *)propsDictionary
+{
+  return _propsDictionary;
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  NSDictionary<NSString *, NSNumber *> *style = self.config[@"style"];
+  [style enumerateKeysAndObjectsUsingBlock:^(NSString *property, NSNumber *nodeTag, __unused BOOL *stop) {
+    RCTAnimatedNode *node = [self.parentNodes objectForKey:nodeTag];
+    if (node) {
+      if ([node isKindOfClass:[RCTValueAnimatedNode class]]) {
+        RCTValueAnimatedNode *parentNode = (RCTValueAnimatedNode *)node;
+        [self->_propsDictionary setObject:@(parentNode.value) forKey:property];
+      } else if ([node isKindOfClass:[RCTTransformAnimatedNode class]]) {
+        RCTTransformAnimatedNode *parentNode = (RCTTransformAnimatedNode *)node;
+        [self->_propsDictionary addEntriesFromDictionary:parentNode.propsDictionary];
+      }
+    }
+  }];
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTSubtractionAnimatedNode.h

@@ -0,0 +1,13 @@
+/*
+ * 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 "RCTValueAnimatedNode.h"
+
+@interface RCTSubtractionAnimatedNode : RCTValueAnimatedNode
+
+@end
+

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTSubtractionAnimatedNode.m

@@ -0,0 +1,27 @@
+/*
+ * 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/RCTSubtractionAnimatedNode.h>
+
+@implementation RCTSubtractionAnimatedNode
+
+- (void)performUpdate
+{
+  [super performUpdate];
+  NSArray<NSNumber *> *inputNodes = self.config[@"input"];
+  if (inputNodes.count > 1) {
+    RCTValueAnimatedNode *parent1 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[0]];
+    RCTValueAnimatedNode *parent2 = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:inputNodes[1]];
+    if ([parent1 isKindOfClass:[RCTValueAnimatedNode class]] &&
+        [parent2 isKindOfClass:[RCTValueAnimatedNode class]]) {
+      self.value = parent1.value - parent2.value;
+    }
+  }
+}
+
+@end
+

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTTrackingAnimatedNode.h

@@ -0,0 +1,13 @@
+/*
+ * 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 "RCTAnimatedNode.h"
+
+
+@interface RCTTrackingAnimatedNode : RCTAnimatedNode
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTTrackingAnimatedNode.m

@@ -0,0 +1,52 @@
+/*
+ * 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/RCTTrackingAnimatedNode.h>
+#import <React/RCTValueAnimatedNode.h>
+#import <React/RCTNativeAnimatedNodesManager.h>
+
+@implementation RCTTrackingAnimatedNode {
+  NSNumber *_animationId;
+  NSNumber *_toValueNodeTag;
+  NSNumber *_valueNodeTag;
+  NSMutableDictionary *_animationConfig;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if ((self = [super initWithTag:tag config:config])) {
+    _animationId = config[@"animationId"];
+    _toValueNodeTag = config[@"toValue"];
+    _valueNodeTag = config[@"value"];
+    _animationConfig = [NSMutableDictionary dictionaryWithDictionary:config[@"animationConfig"]];
+  }
+  return self;
+}
+
+- (void)onDetachedFromNode:(RCTAnimatedNode *)parent
+{
+  [self.manager stopAnimation:_animationId];
+  [super onDetachedFromNode:parent];
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  // change animation config's "toValue" to reflect updated value of the parent node
+  RCTValueAnimatedNode *node = (RCTValueAnimatedNode *)[self.parentNodes objectForKey:_toValueNodeTag];
+  _animationConfig[@"toValue"] = @(node.value);
+
+  [self.manager startAnimatingNode:_animationId
+                           nodeTag:_valueNodeTag
+                            config:_animationConfig
+                       endCallback:nil];
+}
+
+@end
+

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTTransformAnimatedNode.h

@@ -0,0 +1,14 @@
+/*
+ * 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 "RCTAnimatedNode.h"
+
+@interface RCTTransformAnimatedNode : RCTAnimatedNode
+
+- (NSDictionary<NSString *, NSObject *> *)propsDictionary;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTTransformAnimatedNode.m

@@ -0,0 +1,57 @@
+/*
+ * 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/RCTTransformAnimatedNode.h>
+#import <React/RCTValueAnimatedNode.h>
+
+@implementation RCTTransformAnimatedNode
+{
+  NSMutableDictionary<NSString *, NSObject *> *_propsDictionary;
+}
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if ((self = [super initWithTag:tag config:config])) {
+    _propsDictionary = [NSMutableDictionary new];
+  }
+  return self;
+}
+
+- (NSDictionary *)propsDictionary
+{
+  return _propsDictionary;
+}
+
+- (void)performUpdate
+{
+  [super performUpdate];
+
+  NSArray<NSDictionary *> *transformConfigs = self.config[@"transforms"];
+  NSMutableArray<NSDictionary *> *transform = [NSMutableArray arrayWithCapacity:transformConfigs.count];
+  for (NSDictionary *transformConfig in transformConfigs) {
+    NSString *type = transformConfig[@"type"];
+    NSString *property = transformConfig[@"property"];
+    NSNumber *value;
+    if ([type isEqualToString: @"animated"]) {
+      NSNumber *nodeTag = transformConfig[@"nodeTag"];
+      RCTAnimatedNode *node = [self.parentNodes objectForKey:nodeTag];
+      if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
+        continue;
+      }
+      RCTValueAnimatedNode *parentNode = (RCTValueAnimatedNode *)node;
+      value = @(parentNode.value);
+    } else {
+      value = transformConfig[@"value"];
+    }
+    [transform addObject:@{property: value}];
+  }
+
+  _propsDictionary[@"transform"] = transform;
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTValueAnimatedNode.h

@@ -0,0 +1,30 @@
+/*
+ * 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 "RCTAnimatedNode.h"
+
+@class RCTValueAnimatedNode;
+
+@protocol RCTValueAnimatedNodeObserver <NSObject>
+
+- (void)animatedNode:(RCTValueAnimatedNode *)node didUpdateValue:(CGFloat)value;
+
+@end
+
+@interface RCTValueAnimatedNode : RCTAnimatedNode
+
+- (void)setOffset:(CGFloat)offset;
+- (void)flattenOffset;
+- (void)extractOffset;
+
+@property (nonatomic, assign) CGFloat value;
+@property (nonatomic, strong) id animatedObject;
+@property (nonatomic, weak) id<RCTValueAnimatedNodeObserver> valueObserver;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/Nodes/RCTValueAnimatedNode.m

@@ -0,0 +1,56 @@
+/*
+ * 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/RCTValueAnimatedNode.h>
+
+@interface RCTValueAnimatedNode ()
+
+@property (nonatomic, assign) CGFloat offset;
+
+@end
+
+@implementation RCTValueAnimatedNode
+
+@synthesize value = _value;
+
+- (instancetype)initWithTag:(NSNumber *)tag
+                     config:(NSDictionary<NSString *, id> *)config
+{
+  if (self = [super initWithTag:tag config:config]) {
+    _offset = [self.config[@"offset"] floatValue];
+    _value = [self.config[@"value"] floatValue];
+  }
+  return self;
+}
+
+- (void)flattenOffset
+{
+  _value += _offset;
+  _offset = 0;
+}
+
+- (void)extractOffset
+{
+  _offset += _value;
+  _value = 0;
+}
+
+- (CGFloat)value
+{
+  return _value + _offset;
+}
+
+- (void)setValue:(CGFloat)value
+{
+  _value = value;
+
+  if (_valueObserver) {
+    [_valueObserver animatedNode:self didUpdateValue:_value];
+  }
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/RCTAnimationPlugins.h

@@ -0,0 +1,40 @@
+/**
+ * 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.
+ *
+ * @generated by an internal plugin build system
+ */
+
+#ifdef RN_DISABLE_OSS_PLUGIN_HEADER
+
+// FB Internal: FBRCTAnimationPlugins.h is autogenerated by the build system.
+#import <React/FBRCTAnimationPlugins.h>
+
+#else
+
+// OSS-compatibility layer
+
+#import <Foundation/Foundation.h>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wreturn-type-c-linkage"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// RCTTurboModuleManagerDelegate should call this to resolve module classes.
+Class RCTAnimationClassProvider(const char *name);
+
+// Lookup functions
+Class RCTNativeAnimatedModuleCls(void) __attribute__((used));
+
+#ifdef __cplusplus
+}
+#endif
+
+#pragma GCC diagnostic pop
+
+#endif // RN_DISABLE_OSS_PLUGIN_HEADER

node_modules/react-native/Libraries/NativeAnimation/RCTAnimationPlugins.mm

@@ -0,0 +1,32 @@
+/**
+ * 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.
+ *
+ * @generated by an internal plugin build system
+ */
+
+#ifndef RN_DISABLE_OSS_PLUGIN_HEADER
+
+// OSS-compatibility layer
+
+#import "RCTAnimationPlugins.h"
+
+#import <string>
+#import <unordered_map>
+
+Class RCTAnimationClassProvider(const char *name) {
+  static std::unordered_map<std::string, Class (*)(void)> sCoreModuleClassMap = {
+    {"NativeAnimatedModule", RCTNativeAnimatedModuleCls},
+  };
+
+  auto p = sCoreModuleClassMap.find(name);
+  if (p != sCoreModuleClassMap.end()) {
+    auto classFunc = p->second;
+    return classFunc();
+  }
+  return nil;
+}
+
+#endif // RN_DISABLE_OSS_PLUGIN_HEADER

node_modules/react-native/Libraries/NativeAnimation/RCTAnimationUtils.h

@@ -0,0 +1,38 @@
+/*
+ * 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 <CoreGraphics/CoreGraphics.h>
+#import <Foundation/Foundation.h>
+
+#import <React/RCTDefines.h>
+
+static NSString *const EXTRAPOLATE_TYPE_IDENTITY = @"identity";
+static NSString *const EXTRAPOLATE_TYPE_CLAMP = @"clamp";
+static NSString *const EXTRAPOLATE_TYPE_EXTEND = @"extend";
+
+RCT_EXTERN CGFloat RCTInterpolateValueInRange(CGFloat value,
+                                              NSArray<NSNumber *> *inputRange,
+                                              NSArray<NSNumber *> *outputRange,
+                                              NSString *extrapolateLeft,
+                                              NSString *extrapolateRight);
+
+RCT_EXTERN CGFloat RCTInterpolateValue(CGFloat value,
+                                       CGFloat inputMin,
+                                       CGFloat inputMax,
+                                       CGFloat outputMin,
+                                       CGFloat outputMax,
+                                       NSString *extrapolateLeft,
+                                       NSString *extrapolateRight);
+
+RCT_EXTERN CGFloat RCTRadiansToDegrees(CGFloat radians);
+RCT_EXTERN CGFloat RCTDegreesToRadians(CGFloat degrees);
+
+/**
+ * Coefficient to slow down animations, respects the ios
+ * simulator `Slow Animations (⌘T)` option.
+ */
+RCT_EXTERN CGFloat RCTAnimationDragCoefficient(void);

node_modules/react-native/Libraries/NativeAnimation/RCTAnimationUtils.m

@@ -0,0 +1,115 @@
+/*
+ * 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/RCTAnimationUtils.h>
+
+#import <React/RCTLog.h>
+
+static NSUInteger _RCTFindIndexOfNearestValue(CGFloat value, NSArray<NSNumber *> *range)
+{
+  NSUInteger index;
+  NSUInteger rangeCount = range.count;
+  for (index = 1; index < rangeCount - 1; index++) {
+    NSNumber *inputValue = range[index];
+    if (inputValue.doubleValue >= value) {
+      break;
+    }
+  }
+  return index - 1;
+}
+
+/**
+ * Interpolates value by remapping it linearly fromMin->fromMax to toMin->toMax
+ */
+CGFloat RCTInterpolateValue(CGFloat value,
+                            CGFloat inputMin,
+                            CGFloat inputMax,
+                            CGFloat outputMin,
+                            CGFloat outputMax,
+                            NSString *extrapolateLeft,
+                            NSString *extrapolateRight)
+{
+  if (value < inputMin) {
+    if ([extrapolateLeft isEqualToString:EXTRAPOLATE_TYPE_IDENTITY]) {
+      return value;
+    } else if ([extrapolateLeft isEqualToString:EXTRAPOLATE_TYPE_CLAMP]) {
+      value = inputMin;
+    } else if ([extrapolateLeft isEqualToString:EXTRAPOLATE_TYPE_EXTEND]) {
+      // noop
+    } else {
+      RCTLogError(@"Invalid extrapolation type %@ for left extrapolation", extrapolateLeft);
+    }
+  }
+
+  if (value > inputMax) {
+    if ([extrapolateRight isEqualToString:EXTRAPOLATE_TYPE_IDENTITY]) {
+      return value;
+    } else if ([extrapolateRight isEqualToString:EXTRAPOLATE_TYPE_CLAMP]) {
+      value = inputMax;
+    } else if ([extrapolateRight isEqualToString:EXTRAPOLATE_TYPE_EXTEND]) {
+      // noop
+    } else {
+      RCTLogError(@"Invalid extrapolation type %@ for right extrapolation", extrapolateRight);
+    }
+  }
+
+  return outputMin + (value - inputMin) * (outputMax - outputMin) / (inputMax - inputMin);
+}
+
+/**
+ * Interpolates value by mapping it from the inputRange to the outputRange.
+ */
+CGFloat RCTInterpolateValueInRange(CGFloat value,
+                                   NSArray<NSNumber *> *inputRange,
+                                   NSArray<NSNumber *> *outputRange,
+                                   NSString *extrapolateLeft,
+                                   NSString *extrapolateRight)
+{
+  NSUInteger rangeIndex = _RCTFindIndexOfNearestValue(value, inputRange);
+  CGFloat inputMin = inputRange[rangeIndex].doubleValue;
+  CGFloat inputMax = inputRange[rangeIndex + 1].doubleValue;
+  CGFloat outputMin = outputRange[rangeIndex].doubleValue;
+  CGFloat outputMax = outputRange[rangeIndex + 1].doubleValue;
+
+  return RCTInterpolateValue(value,
+                             inputMin,
+                             inputMax,
+                             outputMin,
+                             outputMax,
+                             extrapolateLeft,
+                             extrapolateRight);
+}
+
+CGFloat RCTRadiansToDegrees(CGFloat radians)
+{
+  return radians * 180.0 / M_PI;
+}
+
+CGFloat RCTDegreesToRadians(CGFloat degrees)
+{
+  return degrees / 180.0 * M_PI;
+}
+
+#if TARGET_IPHONE_SIMULATOR
+// Based on https://stackoverflow.com/a/13307674
+float UIAnimationDragCoefficient(void);
+#endif
+
+CGFloat RCTAnimationDragCoefficient()
+{
+#if TARGET_IPHONE_SIMULATOR
+  if (NSClassFromString(@"XCTest") != nil) {
+    // UIAnimationDragCoefficient is 10.0 in tests for some reason, but
+    // we need it to be 1.0. Fixes T34233294
+    return 1.0;
+  } else {
+    return (CGFloat)UIAnimationDragCoefficient();
+  }
+#else
+  return 1.0;
+#endif
+}

node_modules/react-native/Libraries/NativeAnimation/RCTNativeAnimatedModule.h

@@ -0,0 +1,20 @@
+/*
+ * 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/RCTBridgeModule.h>
+#import <React/RCTEventDispatcher.h>
+#import <React/RCTEventEmitter.h>
+#import <React/RCTSurfacePresenterStub.h>
+#import <React/RCTUIManager.h>
+#import <React/RCTUIManagerObserverCoordinator.h>
+#import <React/RCTUIManagerUtils.h>
+
+#import "RCTValueAnimatedNode.h"
+
+@interface RCTNativeAnimatedModule : RCTEventEmitter <RCTBridgeModule, RCTValueAnimatedNodeObserver, RCTEventDispatcherObserver, RCTUIManagerObserver, RCTSurfacePresenterObserver>
+
+@end

node_modules/react-native/Libraries/NativeAnimation/RCTNativeAnimatedModule.mm

@@ -0,0 +1,350 @@
+/*
+ * 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 <FBReactNativeSpec/FBReactNativeSpec.h>
+#import <React/RCTNativeAnimatedModule.h>
+#import <React/RCTNativeAnimatedNodesManager.h>
+
+#import <RCTTypeSafety/RCTConvertHelpers.h>
+
+#import "RCTAnimationPlugins.h"
+
+typedef void (^AnimatedOperation)(RCTNativeAnimatedNodesManager *nodesManager);
+
+@interface RCTNativeAnimatedModule() <NativeAnimatedModuleSpec>
+@end
+
+@implementation RCTNativeAnimatedModule
+{
+  RCTNativeAnimatedNodesManager *_nodesManager;
+
+  // Operations called after views have been updated.
+  NSMutableArray<AnimatedOperation> *_operations;
+  // Operations called before views have been updated.
+  NSMutableArray<AnimatedOperation> *_preOperations;
+  NSMutableDictionary<NSNumber *, NSNumber *> *_animIdIsManagedByFabric;
+}
+
+RCT_EXPORT_MODULE();
+
+- (void)invalidate
+{
+  [_nodesManager stopAnimationLoop];
+  [self.bridge.eventDispatcher removeDispatchObserver:self];
+  [self.bridge.uiManager.observerCoordinator removeObserver:self];
+  [self.bridge.surfacePresenter removeObserver:self];
+}
+
+- (dispatch_queue_t)methodQueue
+{
+  // This module needs to be on the same queue as the UIManager to avoid
+  // having to lock `_operations` and `_preOperations` since `uiManagerWillPerformMounting`
+  // will be called from that queue.
+  return RCTGetUIManagerQueue();
+}
+
+- (void)setBridge:(RCTBridge *)bridge
+{
+  [super setBridge:bridge];
+
+  _nodesManager = [[RCTNativeAnimatedNodesManager alloc] initWithBridge:self.bridge];
+  _operations = [NSMutableArray new];
+  _preOperations = [NSMutableArray new];
+  _animIdIsManagedByFabric = [NSMutableDictionary new];
+
+  [bridge.eventDispatcher addDispatchObserver:self];
+  [bridge.uiManager.observerCoordinator addObserver:self];
+  [bridge.surfacePresenter addObserver:self];
+}
+
+#pragma mark -- API
+
+RCT_EXPORT_METHOD(createAnimatedNode:(double)tag
+                  config:(NSDictionary<NSString *, id> *)config)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager createAnimatedNode:[NSNumber numberWithDouble:tag] config:config];
+  }];
+}
+
+RCT_EXPORT_METHOD(connectAnimatedNodes:(double)parentTag
+                  childTag:(double)childTag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager connectAnimatedNodes:[NSNumber numberWithDouble:parentTag] childTag:[NSNumber numberWithDouble:childTag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(disconnectAnimatedNodes:(double)parentTag
+                  childTag:(double)childTag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager disconnectAnimatedNodes:[NSNumber numberWithDouble:parentTag] childTag:[NSNumber numberWithDouble:childTag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(startAnimatingNode:(double)animationId
+                  nodeTag:(double)nodeTag
+                  config:(NSDictionary<NSString *, id> *)config
+                  endCallback:(RCTResponseSenderBlock)callBack)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager startAnimatingNode:[NSNumber numberWithDouble:animationId] nodeTag:[NSNumber numberWithDouble:nodeTag] config:config endCallback:callBack];
+  }];
+
+  RCTExecuteOnMainQueue(^{
+    if (![self->_nodesManager isNodeManagedByFabric:[NSNumber numberWithDouble:nodeTag]]) {
+      return;
+    }
+
+    RCTExecuteOnUIManagerQueue(^{
+      self->_animIdIsManagedByFabric[[NSNumber numberWithDouble:animationId]] = @YES;
+      [self flushOperationQueues];
+    });
+  });
+}
+
+RCT_EXPORT_METHOD(stopAnimation:(double)animationId)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager stopAnimation:[NSNumber numberWithDouble:animationId]];
+  }];
+  if ([_animIdIsManagedByFabric[[NSNumber numberWithDouble:animationId]] boolValue]) {
+    [self flushOperationQueues];
+  }
+}
+
+RCT_EXPORT_METHOD(setAnimatedNodeValue:(double)nodeTag
+                  value:(double)value)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager setAnimatedNodeValue:[NSNumber numberWithDouble:nodeTag] value:[NSNumber numberWithDouble:value]];
+  }];
+}
+
+RCT_EXPORT_METHOD(setAnimatedNodeOffset:(double)nodeTag
+                  offset:(double)offset)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager setAnimatedNodeOffset:[NSNumber numberWithDouble:nodeTag] offset:[NSNumber numberWithDouble:offset]];
+  }];
+}
+
+RCT_EXPORT_METHOD(flattenAnimatedNodeOffset:(double)nodeTag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager flattenAnimatedNodeOffset:[NSNumber numberWithDouble:nodeTag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(extractAnimatedNodeOffset:(double)nodeTag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager extractAnimatedNodeOffset:[NSNumber numberWithDouble:nodeTag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(connectAnimatedNodeToView:(double)nodeTag
+                  viewTag:(double)viewTag)
+{
+  NSString *viewName = [self.bridge.uiManager viewNameForReactTag:[NSNumber numberWithDouble:viewTag]];
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager connectAnimatedNodeToView:[NSNumber numberWithDouble:nodeTag] viewTag:[NSNumber numberWithDouble:viewTag] viewName:viewName];
+  }];
+}
+
+RCT_EXPORT_METHOD(disconnectAnimatedNodeFromView:(double)nodeTag
+                  viewTag:(double)viewTag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager disconnectAnimatedNodeFromView:[NSNumber numberWithDouble:nodeTag] viewTag:[NSNumber numberWithDouble:viewTag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(restoreDefaultValues:(double)nodeTag)
+{
+  [self addPreOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager restoreDefaultValues:[NSNumber numberWithDouble:nodeTag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(dropAnimatedNode:(double)tag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager dropAnimatedNode:[NSNumber numberWithDouble:tag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(startListeningToAnimatedNodeValue:(double)tag)
+{
+  __weak id<RCTValueAnimatedNodeObserver> valueObserver = self;
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager startListeningToAnimatedNodeValue:[NSNumber numberWithDouble:tag] valueObserver:valueObserver];
+  }];
+}
+
+RCT_EXPORT_METHOD(stopListeningToAnimatedNodeValue:(double)tag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager stopListeningToAnimatedNodeValue:[NSNumber numberWithDouble:tag]];
+  }];
+}
+
+RCT_EXPORT_METHOD(addAnimatedEventToView:(double)viewTag
+                  eventName:(nonnull NSString *)eventName
+                  eventMapping:(JS::NativeAnimatedModule::EventMapping &)eventMapping)
+{
+  NSMutableDictionary *eventMappingDict = [NSMutableDictionary new];
+  eventMappingDict[@"nativeEventPath"] = RCTConvertVecToArray(eventMapping.nativeEventPath());
+
+  if (eventMapping.animatedValueTag()) {
+    eventMappingDict[@"animatedValueTag"] = @(*eventMapping.animatedValueTag());
+  }
+
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager addAnimatedEventToView:[NSNumber numberWithDouble:viewTag] eventName:eventName eventMapping:eventMappingDict];
+  }];
+}
+
+RCT_EXPORT_METHOD(removeAnimatedEventFromView:(double)viewTag
+                  eventName:(nonnull NSString *)eventName
+            animatedNodeTag:(double)animatedNodeTag)
+{
+  [self addOperationBlock:^(RCTNativeAnimatedNodesManager *nodesManager) {
+    [nodesManager removeAnimatedEventFromView:[NSNumber numberWithDouble:viewTag] eventName:eventName animatedNodeTag:[NSNumber numberWithDouble:animatedNodeTag]];
+  }];
+}
+
+#pragma mark -- Batch handling
+
+- (void)addOperationBlock:(AnimatedOperation)operation
+{
+  [_operations addObject:operation];
+}
+
+- (void)addPreOperationBlock:(AnimatedOperation)operation
+{
+  [_preOperations addObject:operation];
+}
+
+- (void)flushOperationQueues
+{
+  if (_preOperations.count == 0 && _operations.count == 0) {
+    return;
+  }
+  NSArray<AnimatedOperation> *preOperations = _preOperations;
+  NSArray<AnimatedOperation> *operations = _operations;
+  _preOperations = [NSMutableArray new];
+  _operations = [NSMutableArray new];
+
+
+  RCTExecuteOnMainQueue(^{
+    for (AnimatedOperation operation in preOperations) {
+      operation(self->_nodesManager);
+    }
+    for (AnimatedOperation operation in operations) {
+      operation(self->_nodesManager);
+    }
+    [self->_nodesManager updateAnimations];
+  });
+}
+
+#pragma mark - RCTSurfacePresenterObserver
+
+- (void)willMountComponentsWithRootTag:(NSInteger)rootTag
+{
+  RCTAssertMainQueue();
+  RCTExecuteOnUIManagerQueue(^{
+    NSArray<AnimatedOperation> *preOperations = self->_preOperations;
+    self->_preOperations = [NSMutableArray new];
+
+    RCTExecuteOnMainQueue(^{
+      for (AnimatedOperation preOperation in preOperations) {
+        preOperation(self->_nodesManager);
+      }
+    });
+  });
+}
+
+- (void)didMountComponentsWithRootTag:(NSInteger)rootTag
+{
+  RCTAssertMainQueue();
+  RCTExecuteOnUIManagerQueue(^{
+    NSArray<AnimatedOperation> *operations = self->_operations;
+    self->_operations = [NSMutableArray new];
+
+    RCTExecuteOnMainQueue(^{
+      for (AnimatedOperation operation in operations) {
+        operation(self->_nodesManager);
+      }
+    });
+  });
+}
+
+#pragma mark - RCTUIManagerObserver
+
+- (void)uiManagerWillPerformMounting:(RCTUIManager *)uiManager
+{
+  if (_preOperations.count == 0 && _operations.count == 0) {
+    return;
+  }
+
+  NSArray<AnimatedOperation> *preOperations = _preOperations;
+  NSArray<AnimatedOperation> *operations = _operations;
+  _preOperations = [NSMutableArray new];
+  _operations = [NSMutableArray new];
+
+  [uiManager prependUIBlock:^(__unused RCTUIManager *manager, __unused NSDictionary<NSNumber *, UIView *> *viewRegistry) {
+    for (AnimatedOperation operation in preOperations) {
+      operation(self->_nodesManager);
+    }
+  }];
+
+  [uiManager addUIBlock:^(__unused RCTUIManager *manager, __unused NSDictionary<NSNumber *, UIView *> *viewRegistry) {
+    for (AnimatedOperation operation in operations) {
+      operation(self->_nodesManager);
+    }
+
+    [self->_nodesManager updateAnimations];
+  }];
+}
+
+#pragma mark -- Events
+
+- (NSArray<NSString *> *)supportedEvents
+{
+  return @[@"onAnimatedValueUpdate"];
+}
+
+- (void)animatedNode:(RCTValueAnimatedNode *)node didUpdateValue:(CGFloat)value
+{
+  [self sendEventWithName:@"onAnimatedValueUpdate"
+                     body:@{@"tag": node.nodeTag, @"value": @(value)}];
+}
+
+- (void)eventDispatcherWillDispatchEvent:(id<RCTEvent>)event
+{
+  // Events can be dispatched from any queue so we have to make sure handleAnimatedEvent
+  // is run from the main queue.
+  RCTExecuteOnMainQueue(^{
+    [self->_nodesManager handleAnimatedEvent:event];
+  });
+}
+
+- (std::shared_ptr<facebook::react::TurboModule>)
+  getTurboModuleWithJsInvoker:(std::shared_ptr<facebook::react::CallInvoker>)jsInvoker
+                nativeInvoker:(std::shared_ptr<facebook::react::CallInvoker>)nativeInvoker
+                   perfLogger:(id<RCTTurboModulePerformanceLogger>)perfLogger
+{
+  return std::make_shared<facebook::react::NativeAnimatedModuleSpecJSI>(self, jsInvoker, nativeInvoker, perfLogger);
+}
+
+@end
+
+Class RCTNativeAnimatedModuleCls(void) {
+  return RCTNativeAnimatedModule.class;
+}

node_modules/react-native/Libraries/NativeAnimation/RCTNativeAnimatedNodesManager.h

@@ -0,0 +1,88 @@
+/*
+ * 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 <Foundation/Foundation.h>
+#import <React/RCTBridgeModule.h>
+#import <React/RCTUIManager.h>
+
+@protocol RCTValueAnimatedNodeObserver;
+
+@interface RCTNativeAnimatedNodesManager : NSObject
+
+- (nonnull instancetype)initWithBridge:(nonnull RCTBridge *)bridge;
+
+- (void)updateAnimations;
+
+- (void)stepAnimations:(nonnull CADisplayLink *)displaylink;
+
+- (BOOL)isNodeManagedByFabric:(nonnull NSNumber *)tag;
+
+// graph
+
+- (void)createAnimatedNode:(nonnull NSNumber *)tag
+                    config:(NSDictionary<NSString *, id> *__nonnull)config;
+
+- (void)connectAnimatedNodes:(nonnull NSNumber *)parentTag
+                    childTag:(nonnull NSNumber *)childTag;
+
+- (void)disconnectAnimatedNodes:(nonnull NSNumber *)parentTag
+                       childTag:(nonnull NSNumber *)childTag;
+
+- (void)connectAnimatedNodeToView:(nonnull NSNumber *)nodeTag
+                          viewTag:(nonnull NSNumber *)viewTag
+                         viewName:(nonnull NSString *)viewName;
+
+- (void)restoreDefaultValues:(nonnull NSNumber *)nodeTag;
+
+- (void)disconnectAnimatedNodeFromView:(nonnull NSNumber *)nodeTag
+                               viewTag:(nonnull NSNumber *)viewTag;
+
+- (void)dropAnimatedNode:(nonnull NSNumber *)tag;
+
+// mutations
+
+- (void)setAnimatedNodeValue:(nonnull NSNumber *)nodeTag
+                       value:(nonnull NSNumber *)value;
+
+- (void)setAnimatedNodeOffset:(nonnull NSNumber *)nodeTag
+                       offset:(nonnull NSNumber *)offset;
+
+- (void)flattenAnimatedNodeOffset:(nonnull NSNumber *)nodeTag;
+
+- (void)extractAnimatedNodeOffset:(nonnull NSNumber *)nodeTag;
+
+// drivers
+
+- (void)startAnimatingNode:(nonnull NSNumber *)animationId
+                   nodeTag:(nonnull NSNumber *)nodeTag
+                    config:(NSDictionary<NSString *, id> *__nonnull)config
+               endCallback:(nullable RCTResponseSenderBlock)callBack;
+
+- (void)stopAnimation:(nonnull NSNumber *)animationId;
+
+- (void)stopAnimationLoop;
+
+// events
+
+- (void)addAnimatedEventToView:(nonnull NSNumber *)viewTag
+                     eventName:(nonnull NSString *)eventName
+                  eventMapping:(NSDictionary<NSString *, id> *__nonnull)eventMapping;
+
+- (void)removeAnimatedEventFromView:(nonnull NSNumber *)viewTag
+                          eventName:(nonnull NSString *)eventName
+                    animatedNodeTag:(nonnull NSNumber *)animatedNodeTag;
+
+- (void)handleAnimatedEvent:(nonnull id<RCTEvent>)event;
+
+// listeners
+
+- (void)startListeningToAnimatedNodeValue:(nonnull NSNumber *)tag
+                            valueObserver:(nonnull id<RCTValueAnimatedNodeObserver>)valueObserver;
+
+- (void)stopListeningToAnimatedNodeValue:(nonnull NSNumber *)tag;
+
+@end

node_modules/react-native/Libraries/NativeAnimation/RCTNativeAnimatedNodesManager.m

@@ -0,0 +1,466 @@
+/*
+ * 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/RCTNativeAnimatedNodesManager.h>
+
+#import <React/RCTConvert.h>
+
+#import <React/RCTAdditionAnimatedNode.h>
+#import <React/RCTAnimatedNode.h>
+#import <React/RCTAnimationDriver.h>
+#import <React/RCTDiffClampAnimatedNode.h>
+#import <React/RCTDivisionAnimatedNode.h>
+#import <React/RCTEventAnimation.h>
+#import <React/RCTFrameAnimation.h>
+#import <React/RCTDecayAnimation.h>
+#import <React/RCTInterpolationAnimatedNode.h>
+#import <React/RCTModuloAnimatedNode.h>
+#import <React/RCTMultiplicationAnimatedNode.h>
+#import <React/RCTPropsAnimatedNode.h>
+#import <React/RCTSpringAnimation.h>
+#import <React/RCTStyleAnimatedNode.h>
+#import <React/RCTSubtractionAnimatedNode.h>
+#import <React/RCTTransformAnimatedNode.h>
+#import <React/RCTValueAnimatedNode.h>
+#import <React/RCTTrackingAnimatedNode.h>
+
+// We do some normalizing of the event names in RCTEventDispatcher#RCTNormalizeInputEventName.
+// To make things simpler just get rid of the parts we change in the event names we use here.
+// This is a lot easier than trying to denormalize because there would be multiple possible
+// denormalized forms for a single input.
+static NSString *RCTNormalizeAnimatedEventName(NSString *eventName)
+{
+  if ([eventName hasPrefix:@"on"]) {
+    return [eventName substringFromIndex:2];
+  }
+  if ([eventName hasPrefix:@"top"]) {
+    return [eventName substringFromIndex:3];
+  }
+  return eventName;
+}
+
+@implementation RCTNativeAnimatedNodesManager
+{
+  __weak RCTBridge *_bridge;
+  NSMutableDictionary<NSNumber *, RCTAnimatedNode *> *_animationNodes;
+  // Mapping of a view tag and an event name to a list of event animation drivers. 99% of the time
+  // there will be only one driver per mapping so all code code should be optimized around that.
+  NSMutableDictionary<NSString *, NSMutableArray<RCTEventAnimation *> *> *_eventDrivers;
+  NSMutableSet<id<RCTAnimationDriver>> *_activeAnimations;
+  CADisplayLink *_displayLink;
+}
+
+- (instancetype)initWithBridge:(nonnull RCTBridge *)bridge
+{
+  if ((self = [super init])) {
+    _bridge = bridge;
+    _animationNodes = [NSMutableDictionary new];
+    _eventDrivers = [NSMutableDictionary new];
+    _activeAnimations = [NSMutableSet new];
+  }
+  return self;
+}
+
+- (BOOL)isNodeManagedByFabric:(nonnull NSNumber *)tag
+{
+  RCTAnimatedNode *node = _animationNodes[tag];
+  if (node) {
+    return [node isManagedByFabric];
+  }
+  return false;
+}
+
+#pragma mark -- Graph
+
+- (void)createAnimatedNode:(nonnull NSNumber *)tag
+                    config:(NSDictionary<NSString *, id> *)config
+{
+  static NSDictionary *map;
+  static dispatch_once_t mapToken;
+  dispatch_once(&mapToken, ^{
+    map = @{@"style" : [RCTStyleAnimatedNode class],
+            @"value" : [RCTValueAnimatedNode class],
+            @"props" : [RCTPropsAnimatedNode class],
+            @"interpolation" : [RCTInterpolationAnimatedNode class],
+            @"addition" : [RCTAdditionAnimatedNode class],
+            @"diffclamp": [RCTDiffClampAnimatedNode class],
+            @"division" : [RCTDivisionAnimatedNode class],
+            @"multiplication" : [RCTMultiplicationAnimatedNode class],
+            @"modulus" : [RCTModuloAnimatedNode class],
+            @"subtraction" : [RCTSubtractionAnimatedNode class],
+            @"transform" : [RCTTransformAnimatedNode class],
+            @"tracking" : [RCTTrackingAnimatedNode class]};
+  });
+
+  NSString *nodeType = [RCTConvert NSString:config[@"type"]];
+
+  Class nodeClass = map[nodeType];
+  if (!nodeClass) {
+    RCTLogError(@"Animated node type %@ not supported natively", nodeType);
+    return;
+  }
+
+  RCTAnimatedNode *node = [[nodeClass alloc] initWithTag:tag config:config];
+  node.manager = self;
+  _animationNodes[tag] = node;
+  [node setNeedsUpdate];
+}
+
+- (void)connectAnimatedNodes:(nonnull NSNumber *)parentTag
+                    childTag:(nonnull NSNumber *)childTag
+{
+  RCTAssertParam(parentTag);
+  RCTAssertParam(childTag);
+
+  RCTAnimatedNode *parentNode = _animationNodes[parentTag];
+  RCTAnimatedNode *childNode = _animationNodes[childTag];
+
+  RCTAssertParam(parentNode);
+  RCTAssertParam(childNode);
+
+  [parentNode addChild:childNode];
+  [childNode setNeedsUpdate];
+}
+
+- (void)disconnectAnimatedNodes:(nonnull NSNumber *)parentTag
+                       childTag:(nonnull NSNumber *)childTag
+{
+  RCTAssertParam(parentTag);
+  RCTAssertParam(childTag);
+
+  RCTAnimatedNode *parentNode = _animationNodes[parentTag];
+  RCTAnimatedNode *childNode = _animationNodes[childTag];
+
+  RCTAssertParam(parentNode);
+  RCTAssertParam(childNode);
+
+  [parentNode removeChild:childNode];
+  [childNode setNeedsUpdate];
+}
+
+- (void)connectAnimatedNodeToView:(nonnull NSNumber *)nodeTag
+                          viewTag:(nonnull NSNumber *)viewTag
+                         viewName:(nonnull NSString *)viewName
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  if ([node isKindOfClass:[RCTPropsAnimatedNode class]]) {
+    [(RCTPropsAnimatedNode *)node connectToView:viewTag viewName:viewName bridge:_bridge];
+  }
+  [node setNeedsUpdate];
+}
+
+- (void)disconnectAnimatedNodeFromView:(nonnull NSNumber *)nodeTag
+                               viewTag:(nonnull NSNumber *)viewTag
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  if ([node isKindOfClass:[RCTPropsAnimatedNode class]]) {
+    [(RCTPropsAnimatedNode *)node disconnectFromView:viewTag];
+  }
+}
+
+- (void)restoreDefaultValues:(nonnull NSNumber *)nodeTag
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  // Restoring default values needs to happen before UIManager operations so it is
+  // possible the node hasn't been created yet if it is being connected and
+  // disconnected in the same batch. In that case we don't need to restore
+  // default values since it will never actually update the view.
+  if (node == nil) {
+    return;
+  }
+  if (![node isKindOfClass:[RCTPropsAnimatedNode class]]) {
+    RCTLogError(@"Not a props node.");
+  }
+  [(RCTPropsAnimatedNode *)node restoreDefaultValues];
+}
+
+- (void)dropAnimatedNode:(nonnull NSNumber *)tag
+{
+  RCTAnimatedNode *node = _animationNodes[tag];
+  if (node) {
+    [node detachNode];
+    [_animationNodes removeObjectForKey:tag];
+  }
+}
+
+#pragma mark -- Mutations
+
+- (void)setAnimatedNodeValue:(nonnull NSNumber *)nodeTag
+                       value:(nonnull NSNumber *)value
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    RCTLogError(@"Not a value node.");
+    return;
+  }
+  [self stopAnimationsForNode:node];
+
+  RCTValueAnimatedNode *valueNode = (RCTValueAnimatedNode *)node;
+  valueNode.value = value.floatValue;
+  [valueNode setNeedsUpdate];
+}
+
+- (void)setAnimatedNodeOffset:(nonnull NSNumber *)nodeTag
+                       offset:(nonnull NSNumber *)offset
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    RCTLogError(@"Not a value node.");
+    return;
+  }
+
+  RCTValueAnimatedNode *valueNode = (RCTValueAnimatedNode *)node;
+  [valueNode setOffset:offset.floatValue];
+  [valueNode setNeedsUpdate];
+}
+
+- (void)flattenAnimatedNodeOffset:(nonnull NSNumber *)nodeTag
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    RCTLogError(@"Not a value node.");
+    return;
+  }
+
+  RCTValueAnimatedNode *valueNode = (RCTValueAnimatedNode *)node;
+  [valueNode flattenOffset];
+}
+
+- (void)extractAnimatedNodeOffset:(nonnull NSNumber *)nodeTag
+{
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+  if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    RCTLogError(@"Not a value node.");
+    return;
+  }
+
+  RCTValueAnimatedNode *valueNode = (RCTValueAnimatedNode *)node;
+  [valueNode extractOffset];
+}
+
+#pragma mark -- Drivers
+
+- (void)startAnimatingNode:(nonnull NSNumber *)animationId
+                   nodeTag:(nonnull NSNumber *)nodeTag
+                    config:(NSDictionary<NSString *, id> *)config
+               endCallback:(RCTResponseSenderBlock)callBack
+{
+  // check if the animation has already started
+  for (id<RCTAnimationDriver> driver in _activeAnimations) {
+    if ([driver.animationId isEqual:animationId]) {
+      // if the animation is running, we restart it with an updated configuration
+      [driver resetAnimationConfig:config];
+      return;
+    }
+  }
+
+  RCTValueAnimatedNode *valueNode = (RCTValueAnimatedNode *)_animationNodes[nodeTag];
+
+  NSString *type = config[@"type"];
+  id<RCTAnimationDriver> animationDriver;
+
+  if ([type isEqual:@"frames"]) {
+    animationDriver = [[RCTFrameAnimation alloc] initWithId:animationId
+                                                     config:config
+                                                    forNode:valueNode
+                                                   callBack:callBack];
+
+  } else if ([type isEqual:@"spring"]) {
+    animationDriver = [[RCTSpringAnimation alloc] initWithId:animationId
+                                                      config:config
+                                                     forNode:valueNode
+                                                    callBack:callBack];
+
+  } else if ([type isEqual:@"decay"]) {
+    animationDriver = [[RCTDecayAnimation alloc] initWithId:animationId
+                                                     config:config
+                                                    forNode:valueNode
+                                                   callBack:callBack];
+  } else {
+    RCTLogError(@"Unsupported animation type: %@", config[@"type"]);
+    return;
+  }
+
+  [_activeAnimations addObject:animationDriver];
+  [animationDriver startAnimation];
+  [self startAnimationLoopIfNeeded];
+}
+
+- (void)stopAnimation:(nonnull NSNumber *)animationId
+{
+  for (id<RCTAnimationDriver> driver in _activeAnimations) {
+    if ([driver.animationId isEqual:animationId]) {
+      [driver stopAnimation];
+      [_activeAnimations removeObject:driver];
+      break;
+    }
+  }
+}
+
+- (void)stopAnimationsForNode:(nonnull RCTAnimatedNode *)node
+{
+    NSMutableArray<id<RCTAnimationDriver>> *discarded = [NSMutableArray new];
+    for (id<RCTAnimationDriver> driver in _activeAnimations) {
+        if ([driver.valueNode isEqual:node]) {
+            [discarded addObject:driver];
+        }
+    }
+    for (id<RCTAnimationDriver> driver in discarded) {
+        [driver stopAnimation];
+        [_activeAnimations removeObject:driver];
+    }
+}
+
+#pragma mark -- Events
+
+- (void)addAnimatedEventToView:(nonnull NSNumber *)viewTag
+                     eventName:(nonnull NSString *)eventName
+                  eventMapping:(NSDictionary<NSString *, id> *)eventMapping
+{
+  NSNumber *nodeTag = [RCTConvert NSNumber:eventMapping[@"animatedValueTag"]];
+  RCTAnimatedNode *node = _animationNodes[nodeTag];
+
+  if (!node) {
+    RCTLogError(@"Animated node with tag %@ does not exists", nodeTag);
+    return;
+  }
+
+  if (![node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    RCTLogError(@"Animated node connected to event should be of type RCTValueAnimatedNode");
+    return;
+  }
+
+  NSArray<NSString *> *eventPath = [RCTConvert NSStringArray:eventMapping[@"nativeEventPath"]];
+
+  RCTEventAnimation *driver =
+    [[RCTEventAnimation alloc] initWithEventPath:eventPath valueNode:(RCTValueAnimatedNode *)node];
+
+  NSString *key = [NSString stringWithFormat:@"%@%@", viewTag, RCTNormalizeAnimatedEventName(eventName)];
+  if (_eventDrivers[key] != nil) {
+    [_eventDrivers[key] addObject:driver];
+  } else {
+    NSMutableArray<RCTEventAnimation *> *drivers = [NSMutableArray new];
+    [drivers addObject:driver];
+    _eventDrivers[key] = drivers;
+  }
+}
+
+- (void)removeAnimatedEventFromView:(nonnull NSNumber *)viewTag
+                          eventName:(nonnull NSString *)eventName
+                    animatedNodeTag:(nonnull NSNumber *)animatedNodeTag
+{
+  NSString *key = [NSString stringWithFormat:@"%@%@", viewTag, RCTNormalizeAnimatedEventName(eventName)];
+  if (_eventDrivers[key] != nil) {
+    if (_eventDrivers[key].count == 1) {
+      [_eventDrivers removeObjectForKey:key];
+    } else {
+      NSMutableArray<RCTEventAnimation *> *driversForKey = _eventDrivers[key];
+      for (NSUInteger i = 0; i < driversForKey.count; i++) {
+        if (driversForKey[i].valueNode.nodeTag == animatedNodeTag) {
+          [driversForKey removeObjectAtIndex:i];
+          break;
+        }
+      }
+    }
+  }
+}
+
+- (void)handleAnimatedEvent:(id<RCTEvent>)event
+{
+  if (_eventDrivers.count == 0) {
+    return;
+  }
+
+  NSString *key = [NSString stringWithFormat:@"%@%@", event.viewTag, RCTNormalizeAnimatedEventName(event.eventName)];
+  NSMutableArray<RCTEventAnimation *> *driversForKey = _eventDrivers[key];
+  if (driversForKey) {
+    for (RCTEventAnimation *driver in driversForKey) {
+      [self stopAnimationsForNode:driver.valueNode];
+      [driver updateWithEvent:event];
+    }
+
+    [self updateAnimations];
+  }
+}
+
+#pragma mark -- Listeners
+
+- (void)startListeningToAnimatedNodeValue:(nonnull NSNumber *)tag
+                            valueObserver:(id<RCTValueAnimatedNodeObserver>)valueObserver
+{
+  RCTAnimatedNode *node = _animationNodes[tag];
+  if ([node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    ((RCTValueAnimatedNode *)node).valueObserver = valueObserver;
+  }
+}
+
+- (void)stopListeningToAnimatedNodeValue:(nonnull NSNumber *)tag
+{
+  RCTAnimatedNode *node = _animationNodes[tag];
+  if ([node isKindOfClass:[RCTValueAnimatedNode class]]) {
+    ((RCTValueAnimatedNode *)node).valueObserver = nil;
+  }
+}
+
+
+#pragma mark -- Animation Loop
+
+- (void)startAnimationLoopIfNeeded
+{
+  if (!_displayLink && _activeAnimations.count > 0) {
+    _displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(stepAnimations:)];
+    [_displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
+  }
+}
+
+- (void)stopAnimationLoopIfNeeded
+{
+  if (_activeAnimations.count == 0) {
+    [self stopAnimationLoop];
+  }
+}
+
+- (void)stopAnimationLoop
+{
+  if (_displayLink) {
+    [_displayLink invalidate];
+    _displayLink = nil;
+  }
+}
+
+- (void)stepAnimations:(CADisplayLink *)displaylink
+{
+  NSTimeInterval time = displaylink.timestamp;
+  for (id<RCTAnimationDriver> animationDriver in _activeAnimations) {
+    [animationDriver stepAnimationWithTime:time];
+  }
+
+  [self updateAnimations];
+
+  for (id<RCTAnimationDriver> animationDriver in [_activeAnimations copy]) {
+    if (animationDriver.animationHasFinished) {
+      [animationDriver stopAnimation];
+      [_activeAnimations removeObject:animationDriver];
+    }
+  }
+
+  [self stopAnimationLoopIfNeeded];
+}
+
+
+#pragma mark -- Updates
+
+- (void)updateAnimations
+{
+  [_animationNodes enumerateKeysAndObjectsUsingBlock:^(NSNumber *key, RCTAnimatedNode *node, BOOL *stop) {
+    if (node.needsUpdate) {
+      [node updateNodeIfNecessary];
+    }
+  }];
+}
+
+@end

node_modules/react-native/Libraries/NativeAnimation/React-RCTAnimation.podspec

@@ -0,0 +1,47 @@
+# 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.
+
+require "json"
+
+package = JSON.parse(File.read(File.join(__dir__, "..", "..", "package.json")))
+version = package['version']
+
+source = { :git => 'https://github.com/facebook/react-native.git' }
+if version == '1000.0.0'
+  # This is an unpublished version, use the latest commit hash of the react-native repo, which we’re presumably in.
+  source[:commit] = `git rev-parse HEAD`.strip
+else
+  source[:tag] = "v#{version}"
+end
+
+folly_compiler_flags = '-DFOLLY_NO_CONFIG -DFOLLY_MOBILE=1 -DFOLLY_USE_LIBCPP=1 -Wno-comma -Wno-shorten-64-to-32'
+folly_version = '2020.01.13.00'
+
+Pod::Spec.new do |s|
+  s.name                   = "React-RCTAnimation"
+  s.version                = version
+  s.summary                = "A native driver for the Animated API."
+  s.homepage               = "https://reactnative.dev/"
+  s.license                = package["license"]
+  s.author                 = "Facebook, Inc. and its affiliates"
+  s.platforms              = { :ios => "10.0", :tvos => "10.0" }
+  s.compiler_flags         = folly_compiler_flags + ' -Wno-nullability-completeness'
+  s.source                 = source
+  s.source_files           = "{Drivers/*,Nodes/*,*}.{m,mm}"
+  s.preserve_paths         = "package.json", "LICENSE", "LICENSE-docs"
+  s.header_dir             = "RCTAnimation"
+  s.pod_target_xcconfig    = {
+                               "USE_HEADERMAP" => "YES",
+                               "CLANG_CXX_LANGUAGE_STANDARD" => "c++14",
+                               "HEADER_SEARCH_PATHS" => "\"$(PODS_ROOT)/Folly\""
+                             }
+
+  s.dependency "Folly", folly_version
+  s.dependency "RCTTypeSafety", version
+  s.dependency "ReactCommon/turbomodule/core", version
+  s.dependency "React-jsi", version
+  s.dependency "FBReactNativeSpec", version
+  s.dependency "React-Core/RCTAnimationHeaders", version
+end