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31bb85a210
Summary:A need for sending a scroll events outside of scrollview made D3092854 a bit clunky. This diff kinda fixes it by tightening up emitting of fake scroll events just to the only usecase we have right now. Why not just simply construct the event in `RCTNavigator`, so we can drop the code from `RCTScrollView` altogether? `RCTScrollEvent` is private to `RCTScrollView`, and that's good. We don't want anyone have an ability to make up scroll events. Even this existing functionality should be sunset one day when we better integrate with native gesture recognizers. Depends on D3092867. Reviewed By: javache Differential Revision: D3120751 fb-gh-sync-id: 6519c055b983cfd48c4b4a9d619c4452e12efda1 fbshipit-source-id: 6519c055b983cfd48c4b4a9d619c4452e12efda1
64 lines
2.0 KiB
Objective-C
64 lines
2.0 KiB
Objective-C
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <UIKit/UIScrollView.h>
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#import "RCTAutoInsetsProtocol.h"
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#import "RCTEventDispatcher.h"
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#import "RCTScrollableProtocol.h"
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#import "RCTView.h"
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@protocol UIScrollViewDelegate;
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@interface RCTScrollView : RCTView <UIScrollViewDelegate, RCTScrollableProtocol, RCTAutoInsetsProtocol>
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- (instancetype)initWithEventDispatcher:(RCTEventDispatcher *)eventDispatcher NS_DESIGNATED_INITIALIZER;
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/**
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* The `RCTScrollView` may have at most one single subview. This will ensure
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* that the scroll view's `contentSize` will be efficiently set to the size of
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* the single subview's frame. That frame size will be determined somewhat
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* efficiently since it will have already been computed by the off-main-thread
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* layout system.
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*/
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@property (nonatomic, readonly) UIView *contentView;
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/**
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* If the `contentSize` is not specified (or is specified as {0, 0}, then the
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* `contentSize` will automatically be determined by the size of the subview.
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*/
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@property (nonatomic, assign) CGSize contentSize;
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/**
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* The underlying scrollView (TODO: can we remove this?)
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*/
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@property (nonatomic, readonly) UIScrollView *scrollView;
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@property (nonatomic, assign) UIEdgeInsets contentInset;
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@property (nonatomic, assign) BOOL automaticallyAdjustContentInsets;
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@property (nonatomic, assign) NSTimeInterval scrollEventThrottle;
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@property (nonatomic, assign) BOOL centerContent;
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@property (nonatomic, assign) int snapToInterval;
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@property (nonatomic, copy) NSString *snapToAlignment;
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@property (nonatomic, copy) NSIndexSet *stickyHeaderIndices;
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@property (nonatomic, copy) RCTDirectEventBlock onRefreshStart;
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- (void)endRefreshing;
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@end
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@interface RCTEventDispatcher (RCTScrollView)
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/**
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* Send a fake scroll event.
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*/
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- (void)sendFakeScrollEvent:(NSNumber *)reactTag;
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@end
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