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15cb6540c1
Summary: Note: not all scrollview props and features (especially event listeners and imperative calls) are supported yet. Reviewed By: fkgozali Differential Revision: D7961868 fbshipit-source-id: 5277674fe976e089fd963066f78e705ad846d78d
123 lines
4.3 KiB
Plaintext
123 lines
4.3 KiB
Plaintext
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "RCTScrollViewComponentView.h"
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#import <React/RCTAssert.h>
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#import <fabric/graphics/Geometry.h>
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#import <fabric/scrollview/ScrollViewLocalData.h>
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#import <fabric/scrollview/ScrollViewProps.h>
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#import "RCTConversions.h"
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#import "RCTEnhancedScrollView.h"
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using namespace facebook::react;
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@interface RCTScrollViewComponentView () <UIScrollViewDelegate>
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@property (nonatomic, assign) CGFloat scrollEventThrottle;
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@end
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@implementation RCTScrollViewComponentView {
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RCTEnhancedScrollView *_Nonnull _scrollView;
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UIView *_Nonnull _contentView;
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SharedScrollViewLocalData _scrollViewLocalData;
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}
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- (instancetype)initWithFrame:(CGRect)frame
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{
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if (self = [super initWithFrame:frame]) {
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_scrollView = [[RCTEnhancedScrollView alloc] initWithFrame:self.bounds];
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_scrollView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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_scrollView.delegate = self;
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_scrollView.delaysContentTouches = NO;
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_contentView = [[UIView alloc] initWithFrame:_scrollView.bounds];
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[_scrollView addSubview:_contentView];
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[self addSubview:_scrollView];
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}
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return self;
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}
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- (void)updateProps:(SharedProps)props oldProps:(SharedProps)oldProps
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{
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[super updateProps:props oldProps:oldProps];
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if (!oldProps) {
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oldProps = _props ?: std::make_shared<ScrollViewProps>();
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}
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_props = props;
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auto oldScrollViewProps = *std::dynamic_pointer_cast<const ScrollViewProps>(oldProps);
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auto newScrollViewProps = *std::dynamic_pointer_cast<const ScrollViewProps>(props);
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#define REMAP_PROP(reactName, localName, target) \
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if (oldScrollViewProps.reactName != newScrollViewProps.reactName) { \
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target.localName = newScrollViewProps.reactName; \
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}
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#define REMAP_VIEW_PROP(reactName, localName) REMAP_PROP(reactName, localName, self)
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#define MAP_VIEW_PROP(name) REMAP_VIEW_PROP(name, name)
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#define REMAP_SCROLL_VIEW_PROP(reactName, localName) REMAP_PROP(reactName, localName, _scrollView)
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#define MAP_SCROLL_VIEW_PROP(name) REMAP_SCROLL_VIEW_PROP(name, name)
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// FIXME: Commented props are not supported yet.
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MAP_SCROLL_VIEW_PROP(alwaysBounceHorizontal);
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MAP_SCROLL_VIEW_PROP(alwaysBounceVertical);
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MAP_SCROLL_VIEW_PROP(bounces);
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MAP_SCROLL_VIEW_PROP(bouncesZoom);
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MAP_SCROLL_VIEW_PROP(canCancelContentTouches);
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MAP_SCROLL_VIEW_PROP(centerContent);
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//MAP_SCROLL_VIEW_PROP(automaticallyAdjustContentInsets);
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MAP_SCROLL_VIEW_PROP(decelerationRate);
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MAP_SCROLL_VIEW_PROP(directionalLockEnabled);
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//MAP_SCROLL_VIEW_PROP(indicatorStyle);
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//MAP_SCROLL_VIEW_PROP(keyboardDismissMode);
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MAP_SCROLL_VIEW_PROP(maximumZoomScale);
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MAP_SCROLL_VIEW_PROP(minimumZoomScale);
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MAP_SCROLL_VIEW_PROP(scrollEnabled);
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MAP_SCROLL_VIEW_PROP(pagingEnabled);
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MAP_SCROLL_VIEW_PROP(pinchGestureEnabled);
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MAP_SCROLL_VIEW_PROP(scrollsToTop);
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MAP_SCROLL_VIEW_PROP(showsHorizontalScrollIndicator);
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MAP_SCROLL_VIEW_PROP(showsVerticalScrollIndicator);
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MAP_VIEW_PROP(scrollEventThrottle);
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MAP_SCROLL_VIEW_PROP(zoomScale);
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//MAP_SCROLL_VIEW_PROP(contentInset);
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//MAP_SCROLL_VIEW_PROP(scrollIndicatorInsets);
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//MAP_SCROLL_VIEW_PROP(snapToInterval);
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//MAP_SCROLL_VIEW_PROP(snapToAlignment);
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}
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- (void)updateLocalData:(SharedLocalData)localData
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oldLocalData:(SharedLocalData)oldLocalData
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{
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assert(std::dynamic_pointer_cast<const ScrollViewLocalData>(localData));
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_scrollViewLocalData = std::static_pointer_cast<const ScrollViewLocalData>(localData);
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CGSize contentSize = RCTCGSizeFromSize(_scrollViewLocalData->getContentSize());
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_contentView.frame = CGRect {CGPointZero, contentSize};
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_scrollView.contentSize = contentSize;
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}
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#pragma mark - ComponentViewProtocol
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- (void)mountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView
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index:(NSInteger)index
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{
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[_contentView insertSubview:childComponentView atIndex:index];
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}
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- (void)unmountChildComponentView:(UIView<RCTComponentViewProtocol> *)childComponentView
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index:(NSInteger)index
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{
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RCTAssert(childComponentView.superview == _contentView, @"Attempt to unmount improperly mounted component view.");
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[childComponentView removeFromSuperview];
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}
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@end
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