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Pods/LookinServer/Src/Main/Server/Others/LKS_EventHandlerMaker.m
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215
Pods/LookinServer/Src/Main/Server/Others/LKS_EventHandlerMaker.m
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#ifdef SHOULD_COMPILE_LOOKIN_SERVER
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//
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// LKS_EventHandlerMaker.m
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// LookinServer
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//
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// Created by Li Kai on 2019/8/7.
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// https://lookin.work
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//
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#import "LKS_EventHandlerMaker.h"
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#import "LookinTuple.h"
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#import "LookinEventHandler.h"
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#import "LookinObject.h"
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#import "LookinWeakContainer.h"
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#import "LookinIvarTrace.h"
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#import "LookinServerDefines.h"
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#import "LKS_GestureTargetActionsSearcher.h"
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#import "LKS_MultiplatformAdapter.h"
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@implementation LKS_EventHandlerMaker
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+ (NSArray<LookinEventHandler *> *)makeForView:(UIView *)view {
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if (!view) {
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return nil;
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}
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NSMutableArray<LookinEventHandler *> *allHandlers = nil;
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if ([view isKindOfClass:[UIControl class]]) {
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NSArray<LookinEventHandler *> *targetActionHandlers = [self _targetActionHandlersForControl:(UIControl *)view];
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if (targetActionHandlers.count) {
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if (!allHandlers) {
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allHandlers = [NSMutableArray array];
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}
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[allHandlers addObjectsFromArray:targetActionHandlers];
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}
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}
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NSArray<LookinEventHandler *> *gestureHandlers = [self _gestureHandlersForView:view];
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if (gestureHandlers.count) {
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if (!allHandlers) {
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allHandlers = [NSMutableArray array];
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}
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[allHandlers addObjectsFromArray:gestureHandlers];
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}
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return allHandlers.copy;
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}
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+ (NSArray<LookinEventHandler *> *)_gestureHandlersForView:(UIView *)view {
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if (view.gestureRecognizers.count == 0) {
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return nil;
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}
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NSArray<LookinEventHandler *> *handlers = [view.gestureRecognizers lookin_map:^id(NSUInteger idx, __kindof UIGestureRecognizer *recognizer) {
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LookinEventHandler *handler = [LookinEventHandler new];
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handler.handlerType = LookinEventHandlerTypeGesture;
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handler.eventName = NSStringFromClass([recognizer class]);
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NSArray<LookinTwoTuple *> *targetActionInfos = [LKS_GestureTargetActionsSearcher getTargetActionsFromRecognizer:recognizer];
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handler.targetActions = [targetActionInfos lookin_map:^id(NSUInteger idx, LookinTwoTuple *rawTuple) {
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NSObject *target = ((LookinWeakContainer *)rawTuple.first).object;
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if (!target) {
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// 该 target 已被释放
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return nil;
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}
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LookinStringTwoTuple *newTuple = [LookinStringTwoTuple new];
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newTuple.first = [LKS_Helper descriptionOfObject:target];
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newTuple.second = (NSString *)rawTuple.second;
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return newTuple;
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}];
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handler.inheritedRecognizerName = [self _inheritedRecognizerNameForRecognizer:recognizer];
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handler.gestureRecognizerIsEnabled = recognizer.enabled;
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if (recognizer.delegate) {
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handler.gestureRecognizerDelegator = [LKS_Helper descriptionOfObject:recognizer.delegate];
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}
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handler.recognizerIvarTraces = [recognizer.lks_ivarTraces lookin_map:^id(NSUInteger idx, LookinIvarTrace *trace) {
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return [NSString stringWithFormat:@"(%@ *) -> %@", trace.hostClassName, trace.ivarName];
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}];
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handler.recognizerOid = [recognizer lks_registerOid];
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return handler;
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}];
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return handlers;
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}
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+ (NSString *)_inheritedRecognizerNameForRecognizer:(UIGestureRecognizer *)recognizer {
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if (!recognizer) {
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NSAssert(NO, @"");
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return nil;
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}
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static NSArray<Class> *baseRecognizers;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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// 注意这里 UIScreenEdgePanGestureRecognizer 在 UIPanGestureRecognizer 前面，因为 UIScreenEdgePanGestureRecognizer 继承于 UIPanGestureRecognizer
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#if TARGET_OS_TV
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baseRecognizers = @[[UILongPressGestureRecognizer class],
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[UIPanGestureRecognizer class],
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[UISwipeGestureRecognizer class],
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[UITapGestureRecognizer class]];
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#elif TARGET_OS_VISION
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baseRecognizers = @[[UILongPressGestureRecognizer class],
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[UIPanGestureRecognizer class],
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[UISwipeGestureRecognizer class],
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[UIRotationGestureRecognizer class],
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[UIPinchGestureRecognizer class],
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[UITapGestureRecognizer class]];
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#else
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baseRecognizers = @[[UILongPressGestureRecognizer class],
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[UIScreenEdgePanGestureRecognizer class],
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[UIPanGestureRecognizer class],
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[UISwipeGestureRecognizer class],
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[UIRotationGestureRecognizer class],
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[UIPinchGestureRecognizer class],
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[UITapGestureRecognizer class]];
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#endif
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});
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__block NSString *result = @"UIGestureRecognizer";
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[baseRecognizers enumerateObjectsUsingBlock:^(Class _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
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if ([recognizer isMemberOfClass:obj]) {
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// 自身就是基本款，则直接置为 nil
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result = nil;
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*stop = YES;
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return;
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}
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if ([recognizer isKindOfClass:obj]) {
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result = NSStringFromClass(obj);
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*stop = YES;
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return;
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}
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}];
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return result;
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}
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+ (NSArray<LookinEventHandler *> *)_targetActionHandlersForControl:(UIControl *)control {
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static dispatch_once_t onceToken;
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static NSArray<NSNumber *> *allEvents = nil;
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dispatch_once(&onceToken,^{
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allEvents = @[@(UIControlEventTouchDown), @(UIControlEventTouchDownRepeat), @(UIControlEventTouchDragInside), @(UIControlEventTouchDragOutside), @(UIControlEventTouchDragEnter), @(UIControlEventTouchDragExit), @(UIControlEventTouchUpInside), @(UIControlEventTouchUpOutside), @(UIControlEventTouchCancel), @(UIControlEventValueChanged), @(UIControlEventEditingDidBegin), @(UIControlEventEditingChanged), @(UIControlEventEditingDidEnd), @(UIControlEventEditingDidEndOnExit)];
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if (@available(iOS 9.0, *)) {
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allEvents = [allEvents arrayByAddingObject:@(UIControlEventPrimaryActionTriggered)];
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}
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});
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NSSet *allTargets = control.allTargets;
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if (!allTargets.count) {
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return nil;
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}
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NSMutableArray<LookinEventHandler *> *handlers = [NSMutableArray array];
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[allEvents enumerateObjectsUsingBlock:^(NSNumber * _Nonnull eventNum, NSUInteger idx, BOOL * _Nonnull stop) {
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UIControlEvents event = [eventNum unsignedIntegerValue];
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NSMutableArray<LookinStringTwoTuple *> *targetActions = [NSMutableArray array];
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[allTargets enumerateObjectsUsingBlock:^(id _Nonnull target, BOOL * _Nonnull stop) {
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NSArray<NSString *> *actions = [control actionsForTarget:target forControlEvent:event];
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[actions enumerateObjectsUsingBlock:^(NSString * _Nonnull action, NSUInteger idx, BOOL * _Nonnull stop) {
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LookinStringTwoTuple *tuple = [LookinStringTwoTuple new];
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tuple.first = [LKS_Helper descriptionOfObject:target];
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tuple.second = action;
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[targetActions addObject:tuple];
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}];
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}];
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if (targetActions.count) {
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LookinEventHandler *handler = [LookinEventHandler new];
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handler.handlerType = LookinEventHandlerTypeTargetAction;
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handler.eventName = [self _nameFromControlEvent:event];
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handler.targetActions = targetActions.copy;
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[handlers addObject:handler];
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}
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}];
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return handlers;
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}
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+ (NSString *)_nameFromControlEvent:(UIControlEvents)event {
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static dispatch_once_t onceToken;
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static NSDictionary<NSNumber *, NSString *> *eventsAndNames = nil;
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dispatch_once(&onceToken,^{
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NSMutableDictionary<NSNumber *, NSString *> *eventsAndNames_m = @{
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@(UIControlEventTouchDown): @"UIControlEventTouchDown",
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@(UIControlEventTouchDownRepeat): @"UIControlEventTouchDownRepeat",
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@(UIControlEventTouchDragInside): @"UIControlEventTouchDragInside",
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@(UIControlEventTouchDragOutside): @"UIControlEventTouchDragOutside",
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@(UIControlEventTouchDragEnter): @"UIControlEventTouchDragEnter",
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@(UIControlEventTouchDragExit): @"UIControlEventTouchDragExit",
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@(UIControlEventTouchUpInside): @"UIControlEventTouchUpInside",
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@(UIControlEventTouchUpOutside): @"UIControlEventTouchUpOutside",
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@(UIControlEventTouchCancel): @"UIControlEventTouchCancel",
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@(UIControlEventValueChanged): @"UIControlEventValueChanged",
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@(UIControlEventEditingDidBegin): @"UIControlEventEditingDidBegin",
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@(UIControlEventEditingChanged): @"UIControlEventEditingChanged",
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@(UIControlEventEditingDidEnd): @"UIControlEventEditingDidEnd",
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@(UIControlEventEditingDidEndOnExit): @"UIControlEventEditingDidEndOnExit",
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}.mutableCopy;
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if (@available(iOS 9.0, *)) {
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eventsAndNames_m[@(UIControlEventPrimaryActionTriggered)] = @"UIControlEventPrimaryActionTriggered";
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}
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eventsAndNames = eventsAndNames_m.copy;
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});
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NSString *name = eventsAndNames[@(event)];
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return name;
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}
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@end
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#endif /* SHOULD_COMPILE_LOOKIN_SERVER */
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