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31 lines
751 B
31 lines
751 B
//
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// Promise+Progress.swift
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// then
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//
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// Created by Sacha Durand Saint Omer on 20/02/2017.
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// Copyright © 2017 s4cha. All rights reserved.
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//
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import Foundation
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public extension Promise {
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@discardableResult public func progress(_ block: @escaping (Float) -> Void) -> Promise<T> {
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tryStartInitialPromiseAndStartIfneeded()
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let p = newLinkedPromise()
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syncStateWithCallBacks(
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success: p.fulfill,
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failure: p.reject,
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progress: { f in
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block(f)
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p.setProgress(f)
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}
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)
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p.start()
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return p
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}
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internal func setProgress(_ value: Float) {
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updateState(PromiseState<T>.pending(progress: value))
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}
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}
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