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fd8b7dee77
- Unbreak ReactKit | Nick Lockwood - Refactor | Nick Lockwood - [ReactNative] fix touch cancel behavior | Spencer Ahrens - [ReactNative iOS] Fix responder issue with textInput | Eric Vicenti - [ReactNative] README updates - file watching troubleshooting, one-time code drop -> currently private repo | Spencer Ahrens - [ReactKit] Re-add README linebreaks | Ben Alpert
98 lines
2.5 KiB
Objective-C
98 lines
2.5 KiB
Objective-C
// Copyright 2004-present Facebook. All Rights Reserved.
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#import "RCTEventDispatcher.h"
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#import "RCTAssert.h"
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#import "RCTBridge.h"
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#import "UIView+ReactKit.h"
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@implementation RCTEventDispatcher
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{
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RCTBridge *_bridge;
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}
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- (instancetype)initWithBridge:(RCTBridge *)bridge
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{
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if ((self = [super init])) {
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_bridge = bridge;
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}
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return self;
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}
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- (void)sendEventWithName:(NSString *)name body:(NSDictionary *)body
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{
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RCTAssert([body[@"target"] isKindOfClass:[NSNumber class]],
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@"Event body dictionary must include a 'target' property containing a react tag");
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[_bridge enqueueJSCall:@"RCTEventEmitter.receiveEvent"
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args:@[body[@"target"], name, body]];
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}
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- (void)sendTextEventWithType:(RCTTextEventType)type
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reactTag:(NSNumber *)reactTag
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text:(NSString *)text
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{
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static NSString *events[] = {
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@"topFocus",
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@"topBlur",
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@"topChange",
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@"topSubmitEditing",
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@"topEndEditing",
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};
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[self sendEventWithName:events[type] body:@{
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@"text": text,
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@"target": reactTag
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}];
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}
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/**
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* TODO: throttling
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* NOTE: the old system used a per-scrollview throttling
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* which would be fairly easy to re-implement if needed,
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* but this is non-optimal as it leads to degradation in
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* scroll responsiveness. A better solution would be to
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* coalesce multiple scroll events into a single batch.
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*/
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- (void)sendScrollEventWithType:(RCTScrollEventType)type
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reactTag:(NSNumber *)reactTag
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scrollView:(UIScrollView *)scrollView
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userData:(NSDictionary *)userData
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{
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static NSString *events[] = {
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@"topScrollBeginDrag",
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@"topScroll",
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@"topScrollEndDrag",
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@"topMomentumScrollBegin",
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@"topMomentumScrollEnd",
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@"topScrollAnimationEnd",
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};
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NSDictionary *body = @{
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@"contentOffset": @{
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@"x": @(scrollView.contentOffset.x),
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@"y": @(scrollView.contentOffset.y)
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},
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@"contentSize": @{
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@"width": @(scrollView.contentSize.width),
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@"height": @(scrollView.contentSize.height)
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},
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@"layoutMeasurement": @{
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@"width": @(scrollView.frame.size.width),
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@"height": @(scrollView.frame.size.height)
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},
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@"zoomScale": @(scrollView.zoomScale ?: 1),
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@"target": reactTag
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};
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if (userData) {
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NSMutableDictionary *mutableBody = [body mutableCopy];
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[mutableBody addEntriesFromDictionary:userData];
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body = mutableBody;
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}
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[self sendEventWithName:events[type] body:body];
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}
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@end
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