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node_modules/react-native/React/Views/RefreshControl/RCTRefreshControl.h

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+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <UIKit/UIKit.h>
+
+#import <React/RCTComponent.h>
+#import <React/RCTScrollableProtocol.h>
+
+@interface RCTRefreshControl : UIRefreshControl <RCTCustomRefreshContolProtocol>
+
+@property (nonatomic, copy) NSString *title;
+@property (nonatomic, copy) RCTDirectEventBlock onRefresh;
+
+@end

node_modules/react-native/React/Views/RefreshControl/RCTRefreshControl.m

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+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "RCTRefreshControl.h"
+#import "RCTRefreshableProtocol.h"
+
+#import "RCTUtils.h"
+
+@interface RCTRefreshControl () <RCTRefreshableProtocol>
+@end
+
+@implementation RCTRefreshControl {
+  BOOL _isInitialRender;
+  BOOL _currentRefreshingState;
+  UInt64 _currentRefreshingStateClock;
+  UInt64 _currentRefreshingStateTimestamp;
+  BOOL _refreshingProgrammatically;
+  NSString *_title;
+  UIColor *_titleColor;
+}
+
+- (instancetype)init
+{
+  if ((self = [super init])) {
+    [self addTarget:self action:@selector(refreshControlValueChanged) forControlEvents:UIControlEventValueChanged];
+    _currentRefreshingStateClock = 1;
+    _currentRefreshingStateTimestamp = 0;
+    _isInitialRender = true;
+    _currentRefreshingState = false;
+  }
+  return self;
+}
+
+RCT_NOT_IMPLEMENTED(-(instancetype)initWithCoder : (NSCoder *)aDecoder)
+
+- (void)layoutSubviews
+{
+  [super layoutSubviews];
+
+  // Fix for bug #7976
+  // TODO: Remove when updating to use iOS 10 refreshControl UIScrollView prop.
+  if (self.backgroundColor == nil) {
+    self.backgroundColor = [UIColor clearColor];
+  }
+
+  // If the control is refreshing when mounted we need to call
+  // beginRefreshing in layoutSubview or it doesn't work.
+  if (_currentRefreshingState && _isInitialRender) {
+    [self beginRefreshingProgrammatically];
+  }
+  _isInitialRender = false;
+}
+
+- (void)beginRefreshingProgrammatically
+{
+  UInt64 beginRefreshingTimestamp = _currentRefreshingStateTimestamp;
+  _refreshingProgrammatically = YES;
+  // When using begin refreshing we need to adjust the ScrollView content offset manually.
+  UIScrollView *scrollView = (UIScrollView *)self.superview;
+  // Fix for bug #24855
+  [self sizeToFit];
+  CGPoint offset = {scrollView.contentOffset.x, scrollView.contentOffset.y - self.frame.size.height};
+
+  // `beginRefreshing` must be called after the animation is done. This is why it is impossible
+  // to use `setContentOffset` with `animated:YES`.
+  [UIView animateWithDuration:0.25
+      delay:0
+      options:UIViewAnimationOptionBeginFromCurrentState
+      animations:^(void) {
+        [scrollView setContentOffset:offset];
+      }
+      completion:^(__unused BOOL finished) {
+        if (beginRefreshingTimestamp == self->_currentRefreshingStateTimestamp) {
+          [super beginRefreshing];
+          [self setCurrentRefreshingState:super.refreshing];
+        }
+      }];
+}
+
+- (void)endRefreshingProgrammatically
+{
+  // The contentOffset of the scrollview MUST be greater than the contentInset before calling
+  // endRefreshing otherwise the next pull to refresh will not work properly.
+  UIScrollView *scrollView = (UIScrollView *)self.superview;
+  if (_refreshingProgrammatically && scrollView.contentOffset.y < -scrollView.contentInset.top) {
+    UInt64 endRefreshingTimestamp = _currentRefreshingStateTimestamp;
+    CGPoint offset = {scrollView.contentOffset.x, -scrollView.contentInset.top};
+    [UIView animateWithDuration:0.25
+        delay:0
+        options:UIViewAnimationOptionBeginFromCurrentState
+        animations:^(void) {
+          [scrollView setContentOffset:offset];
+        }
+        completion:^(__unused BOOL finished) {
+          if (endRefreshingTimestamp == self->_currentRefreshingStateTimestamp) {
+            [super endRefreshing];
+            [self setCurrentRefreshingState:super.refreshing];
+          }
+        }];
+  } else {
+    [super endRefreshing];
+  }
+}
+
+- (NSString *)title
+{
+  return _title;
+}
+
+- (void)setTitle:(NSString *)title
+{
+  _title = title;
+  [self _updateTitle];
+}
+
+- (void)setTitleColor:(UIColor *)color
+{
+  _titleColor = color;
+  [self _updateTitle];
+}
+
+- (void)_updateTitle
+{
+  if (!_title) {
+    return;
+  }
+
+  NSMutableDictionary *attributes = [NSMutableDictionary dictionary];
+  if (_titleColor) {
+    attributes[NSForegroundColorAttributeName] = _titleColor;
+  }
+
+  self.attributedTitle = [[NSAttributedString alloc] initWithString:_title attributes:attributes];
+}
+
+- (void)setRefreshing:(BOOL)refreshing
+{
+  if (_currentRefreshingState != refreshing) {
+    [self setCurrentRefreshingState:refreshing];
+
+    if (refreshing) {
+      if (!_isInitialRender) {
+        [self beginRefreshingProgrammatically];
+      }
+    } else {
+      [self endRefreshingProgrammatically];
+    }
+  }
+}
+
+- (void)setCurrentRefreshingState:(BOOL)refreshing
+{
+  _currentRefreshingState = refreshing;
+  _currentRefreshingStateTimestamp = _currentRefreshingStateClock++;
+}
+
+- (void)refreshControlValueChanged
+{
+  [self setCurrentRefreshingState:super.refreshing];
+  _refreshingProgrammatically = NO;
+
+  if (_onRefresh) {
+    _onRefresh(nil);
+  }
+}
+
+@end

node_modules/react-native/React/Views/RefreshControl/RCTRefreshControlManager.h

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+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTViewManager.h>
+
+@interface RCTRefreshControlManager : RCTViewManager
+
+@end

node_modules/react-native/React/Views/RefreshControl/RCTRefreshControlManager.m

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+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTUIManager.h>
+
+#import "RCTRefreshControl.h"
+#import "RCTRefreshControlManager.h"
+#import "RCTRefreshableProtocol.h"
+
+@implementation RCTRefreshControlManager
+
+RCT_EXPORT_MODULE()
+
+- (UIView *)view
+{
+  return [RCTRefreshControl new];
+}
+
+RCT_EXPORT_VIEW_PROPERTY(onRefresh, RCTDirectEventBlock)
+RCT_EXPORT_VIEW_PROPERTY(refreshing, BOOL)
+RCT_EXPORT_VIEW_PROPERTY(tintColor, UIColor)
+RCT_EXPORT_VIEW_PROPERTY(title, NSString)
+RCT_EXPORT_VIEW_PROPERTY(titleColor, UIColor)
+
+RCT_EXPORT_METHOD(setNativeRefreshing : (nonnull NSNumber *)viewTag toRefreshing : (BOOL)refreshing)
+{
+  [self.bridge.uiManager addUIBlock:^(RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry) {
+    UIView *view = viewRegistry[viewTag];
+
+    if ([view conformsToProtocol:@protocol(RCTRefreshableProtocol)]) {
+      [(id<RCTRefreshableProtocol>)view setRefreshing:refreshing];
+    } else {
+      RCTLogError(@"view must conform to protocol RCTRefreshableProtocol");
+    }
+  }];
+}
+
+@end

node_modules/react-native/React/Views/RefreshControl/RCTRefreshableProtocol.h

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+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <React/RCTComponent.h>
+#import <UIKit/UIKit.h>
+
+/**
+ * Protocol used to dispatch commands in `RCTRefreshControlManager.h`.
+ * This is in order to support commands for both Paper and Fabric components
+ * during migration.
+ */
+@protocol RCTRefreshableProtocol
+
+- (void)setRefreshing:(BOOL)refreshing;
+
+@end