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[MERGE] LoginViewController MVVM-C로 변경 (#162)
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LionHeart-iOS/LionHeart-iOS/Global/Extensions/Combine+.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // | ||
| // Combine+.swift | ||
| // LionHeart-iOS | ||
| // | ||
| // Created by 김민재 on 11/6/23. | ||
| // | ||
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| import Combine | ||
| import UIKit | ||
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| extension UIControl { | ||
| func controlPublisher(for event: UIControl.Event) -> UIControl.EventPublisher { | ||
| return UIControl.EventPublisher(control: self, event: event) | ||
| } | ||
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| // Publisher | ||
| struct EventPublisher: Publisher { | ||
| typealias Output = UIControl | ||
| typealias Failure = Never | ||
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| let control: UIControl | ||
| let event: UIControl.Event | ||
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| func receive<S>(subscriber: S) | ||
| where S: Subscriber, Never == S.Failure, UIControl == S.Input { | ||
| let subscription = EventSubscription( | ||
| control: control, | ||
| subscriber: subscriber, | ||
| event: event | ||
| ) | ||
| subscriber.receive(subscription: subscription) | ||
| } | ||
| } | ||
|
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| // Subscription | ||
| fileprivate class EventSubscription<EventSubscriber: Subscriber>: Subscription | ||
| where EventSubscriber.Input == UIControl, EventSubscriber.Failure == Never { | ||
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| let control: UIControl | ||
| let event: UIControl.Event | ||
| var subscriber: EventSubscriber? | ||
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| init(control: UIControl, subscriber: EventSubscriber, event: UIControl.Event) { | ||
| self.control = control | ||
| self.subscriber = subscriber | ||
| self.event = event | ||
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| control.addTarget(self, action: #selector(eventDidOccur), for: event) | ||
| } | ||
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| func request(_ demand: Subscribers.Demand) {} | ||
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| func cancel() { | ||
| subscriber = nil | ||
| control.removeTarget(self, action: #selector(eventDidOccur), for: event) | ||
| } | ||
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| @objc func eventDidOccur() { | ||
| _ = subscriber?.receive(control) | ||
| } | ||
| } | ||
| } | ||
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| extension UITextField { | ||
| var textPublisher: AnyPublisher<String, Never> { | ||
| controlPublisher(for: .editingChanged) | ||
| .map { $0 as! UITextField } | ||
| .map { $0.text! } | ||
| .eraseToAnyPublisher() | ||
| } | ||
| } | ||
|
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| extension UIButton { | ||
| var tapPublisher: AnyPublisher<Void, Never> { | ||
| controlPublisher(for: .touchUpInside) | ||
| .map { _ in } | ||
| .eraseToAnyPublisher() | ||
| } | ||
| } | ||
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| extension Publisher { | ||
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| func tryAwaitMap<T>(_ transform: @escaping (Self.Output) async throws -> T) -> Publishers.FlatMap<Future<T, NetworkError>, Self> { | ||
| flatMap { value in | ||
| Future { promise in | ||
| Task { | ||
| do { | ||
| let result = try await transform(value) | ||
| promise(.success(result)) | ||
| } | ||
| catch { | ||
| promise(.failure(error as! NetworkError)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| func task<T>(maxPublishers: Subscribers.Demand = .unlimited, _ transform: @escaping (Output) async -> T) | ||
| -> Publishers.FlatMap<Deferred<Future<T, Never>>, Self> { | ||
| flatMap(maxPublishers: maxPublishers) { value in | ||
| Deferred { | ||
| Future { promise in | ||
| Task { | ||
| let output = await transform(value) | ||
| promise(.success(output)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| func errorTask<T>(maxPublishers: Subscribers.Demand = .unlimited, _ transform: @escaping (Output) async throws -> T) | ||
| -> Publishers.FlatMap<Deferred<Future<T, Never>>, Self> { | ||
| flatMap(maxPublishers: maxPublishers) { value in | ||
| Deferred { | ||
| Future { promise in | ||
| Task { | ||
| let output = try await transform(value) | ||
| promise(.success(output)) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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