react-native/React/Views/ScrollView/RCTScrollViewManager.m

209 lines
7.8 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import "RCTScrollViewManager.h"
#import "RCTBridge.h"
#import "RCTScrollView.h"
#import "RCTShadowView.h"
#import "RCTUIManager.h"
@interface RCTScrollView (Private)
- (NSArray<NSDictionary *> *)calculateChildFramesData;
@end
@implementation RCTConvert (UIScrollView)
RCT_ENUM_CONVERTER(UIScrollViewKeyboardDismissMode, (@{
@"none": @(UIScrollViewKeyboardDismissModeNone),
@"on-drag": @(UIScrollViewKeyboardDismissModeOnDrag),
@"interactive": @(UIScrollViewKeyboardDismissModeInteractive),
// Backwards compatibility
@"onDrag": @(UIScrollViewKeyboardDismissModeOnDrag),
}), UIScrollViewKeyboardDismissModeNone, integerValue)
RCT_ENUM_CONVERTER(UIScrollViewIndicatorStyle, (@{
@"default": @(UIScrollViewIndicatorStyleDefault),
@"black": @(UIScrollViewIndicatorStyleBlack),
@"white": @(UIScrollViewIndicatorStyleWhite),
}), UIScrollViewIndicatorStyleDefault, integerValue)
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
RCT_ENUM_CONVERTER(UIScrollViewContentInsetAdjustmentBehavior, (@{
@"automatic": @(UIScrollViewContentInsetAdjustmentAutomatic),
@"scrollableAxes": @(UIScrollViewContentInsetAdjustmentScrollableAxes),
@"never": @(UIScrollViewContentInsetAdjustmentNever),
@"always": @(UIScrollViewContentInsetAdjustmentAlways),
}), UIScrollViewContentInsetAdjustmentNever, integerValue)
#endif
@end
@implementation RCTScrollViewManager
RCT_EXPORT_MODULE()
- (UIView *)view
{
return [[RCTScrollView alloc] initWithEventDispatcher:self.bridge.eventDispatcher];
}
RCT_EXPORT_VIEW_PROPERTY(alwaysBounceHorizontal, BOOL)
RCT_EXPORT_VIEW_PROPERTY(alwaysBounceVertical, BOOL)
RCT_EXPORT_VIEW_PROPERTY(bounces, BOOL)
RCT_EXPORT_VIEW_PROPERTY(bouncesZoom, BOOL)
RCT_EXPORT_VIEW_PROPERTY(canCancelContentTouches, BOOL)
RCT_EXPORT_VIEW_PROPERTY(centerContent, BOOL)
RCT_EXPORT_VIEW_PROPERTY(maintainVisibleContentPosition, NSDictionary)
RCT_EXPORT_VIEW_PROPERTY(automaticallyAdjustContentInsets, BOOL)
RCT_EXPORT_VIEW_PROPERTY(decelerationRate, CGFloat)
RCT_EXPORT_VIEW_PROPERTY(directionalLockEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(indicatorStyle, UIScrollViewIndicatorStyle)
RCT_EXPORT_VIEW_PROPERTY(keyboardDismissMode, UIScrollViewKeyboardDismissMode)
RCT_EXPORT_VIEW_PROPERTY(maximumZoomScale, CGFloat)
RCT_EXPORT_VIEW_PROPERTY(minimumZoomScale, CGFloat)
RCT_EXPORT_VIEW_PROPERTY(scrollEnabled, BOOL)
#if !TARGET_OS_TV
RCT_EXPORT_VIEW_PROPERTY(pagingEnabled, BOOL)
RCT_REMAP_VIEW_PROPERTY(pinchGestureEnabled, scrollView.pinchGestureEnabled, BOOL)
RCT_EXPORT_VIEW_PROPERTY(scrollsToTop, BOOL)
#endif
RCT_EXPORT_VIEW_PROPERTY(showsHorizontalScrollIndicator, BOOL)
RCT_EXPORT_VIEW_PROPERTY(showsVerticalScrollIndicator, BOOL)
RCT_EXPORT_VIEW_PROPERTY(scrollEventThrottle, NSTimeInterval)
RCT_EXPORT_VIEW_PROPERTY(zoomScale, CGFloat)
RCT_EXPORT_VIEW_PROPERTY(contentInset, UIEdgeInsets)
RCT_EXPORT_VIEW_PROPERTY(scrollIndicatorInsets, UIEdgeInsets)
RCT_EXPORT_VIEW_PROPERTY(snapToInterval, int)
RCT_EXPORT_VIEW_PROPERTY(snapToAlignment, NSString)
RCT_REMAP_VIEW_PROPERTY(contentOffset, scrollView.contentOffset, CGPoint)
RCT_EXPORT_VIEW_PROPERTY(onScrollBeginDrag, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onScroll, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onScrollEndDrag, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onMomentumScrollBegin, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(onMomentumScrollEnd, RCTDirectEventBlock)
RCT_EXPORT_VIEW_PROPERTY(DEPRECATED_sendUpdatedChildFrames, BOOL)
#if defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000 /* __IPHONE_11_0 */
RCT_EXPORT_VIEW_PROPERTY(contentInsetAdjustmentBehavior, UIScrollViewContentInsetAdjustmentBehavior)
#endif
// overflow is used both in css-layout as well as by react-native. In css-layout
// we always want to treat overflow as scroll but depending on what the overflow
// is set to from js we want to clip drawing or not. This piece of code ensures
// that css-layout is always treating the contents of a scroll container as
// overflow: 'scroll'.
RCT_CUSTOM_SHADOW_PROPERTY(overflow, YGOverflow, RCTShadowView) {
#pragma unused (json)
view.overflow = YGOverflowScroll;
}
RCT_EXPORT_METHOD(getContentSize:(nonnull NSNumber *)reactTag
callback:(RCTResponseSenderBlock)callback)
{
[self.bridge.uiManager addUIBlock:
^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTScrollView *> *viewRegistry) {
RCTScrollView *view = viewRegistry[reactTag];
if (!view || ![view isKindOfClass:[RCTScrollView class]]) {
RCTLogError(@"Cannot find RCTScrollView with tag #%@", reactTag);
return;
}
CGSize size = view.scrollView.contentSize;
callback(@[@{
@"width" : @(size.width),
@"height" : @(size.height)
}]);
}];
}
RCT_EXPORT_METHOD(calculateChildFrames:(nonnull NSNumber *)reactTag
callback:(RCTResponseSenderBlock)callback)
{
[self.bridge.uiManager addUIBlock:
^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTScrollView *> *viewRegistry) {
RCTScrollView *view = viewRegistry[reactTag];
if (!view || ![view isKindOfClass:[RCTScrollView class]]) {
RCTLogError(@"Cannot find RCTScrollView with tag #%@", reactTag);
return;
}
NSArray<NSDictionary *> *childFrames = [view calculateChildFramesData];
if (childFrames) {
callback(@[childFrames]);
}
}];
}
RCT_EXPORT_METHOD(scrollTo:(nonnull NSNumber *)reactTag
offsetX:(CGFloat)x
offsetY:(CGFloat)y
animated:(BOOL)animated)
{
[self.bridge.uiManager addUIBlock:
^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry){
UIView *view = viewRegistry[reactTag];
if ([view conformsToProtocol:@protocol(RCTScrollableProtocol)]) {
[(id<RCTScrollableProtocol>)view scrollToOffset:(CGPoint){x, y} animated:animated];
} else {
RCTLogError(@"tried to scrollTo: on non-RCTScrollableProtocol view %@ "
"with tag #%@", view, reactTag);
}
}];
}
RCT_EXPORT_METHOD(scrollToEnd:(nonnull NSNumber *)reactTag
animated:(BOOL)animated)
{
[self.bridge.uiManager addUIBlock:
^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry){
UIView *view = viewRegistry[reactTag];
if ([view conformsToProtocol:@protocol(RCTScrollableProtocol)]) {
[(id<RCTScrollableProtocol>)view scrollToEnd:animated];
} else {
RCTLogError(@"tried to scrollTo: on non-RCTScrollableProtocol view %@ "
"with tag #%@", view, reactTag);
}
}];
}
RCT_EXPORT_METHOD(zoomToRect:(nonnull NSNumber *)reactTag
withRect:(CGRect)rect
animated:(BOOL)animated)
{
[self.bridge.uiManager addUIBlock:
^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, UIView *> *viewRegistry){
UIView *view = viewRegistry[reactTag];
if ([view conformsToProtocol:@protocol(RCTScrollableProtocol)]) {
[(id<RCTScrollableProtocol>)view zoomToRect:rect animated:animated];
} else {
RCTLogError(@"tried to zoomToRect: on non-RCTScrollableProtocol view %@ "
"with tag #%@", view, reactTag);
}
}];
}
RCT_EXPORT_METHOD(flashScrollIndicators:(nonnull NSNumber *)reactTag)
{
[self.bridge.uiManager addUIBlock:
^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, RCTScrollView *> *viewRegistry){
RCTScrollView *view = viewRegistry[reactTag];
if (!view || ![view isKindOfClass:[RCTScrollView class]]) {
RCTLogError(@"Cannot find RCTScrollView with tag #%@", reactTag);
return;
}
[view.scrollView flashScrollIndicators];
}];
}
@end