71 lines
1.9 KiB
Swift
71 lines
1.9 KiB
Swift
//
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// UIScrollView+Rx.swift
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// RxCocoa
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//
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// Created by Krunoslav Zaher on 4/3/15.
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// Copyright (c) 2015 Krunoslav Zaher. All rights reserved.
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//
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#if os(iOS) || os(tvOS)
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import Foundation
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#if !RX_NO_MODULE
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import RxSwift
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#endif
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import UIKit
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extension UIScrollView {
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/**
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Factory method that enables subclasses to implement their own `rx_delegate`.
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- returns: Instance of delegate proxy that wraps `delegate`.
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*/
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func rx_createDelegateProxy() -> RxScrollViewDelegateProxy {
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return RxScrollViewDelegateProxy(parentObject: self)
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}
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/**
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Reactive wrapper for `delegate`.
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For more information take a look at `DelegateProxyType` protocol documentation.
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*/
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public var rx_delegate: DelegateProxy {
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return proxyForObject(self) as RxScrollViewDelegateProxy
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}
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/**
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Reactive wrapper for `contentOffset`.
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*/
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public var rx_contentOffset: ControlProperty<CGPoint> {
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let proxy = proxyForObject(self) as RxScrollViewDelegateProxy
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return ControlProperty(source: proxy.contentOffsetSubject, observer: ObserverOf { [weak self] event in
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switch event {
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case .Next(let value):
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self?.contentOffset = value
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case .Error(let error):
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bindingErrorToInterface(error)
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case .Completed:
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break
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}
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})
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}
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/**
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Installs delegate as forwarding delegate on `rx_delegate`.
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It enables using normal delegate mechanism with reactive delegate mechanism.
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- parameter delegate: Delegate object.
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- returns: Disposable object that can be used to unbind the delegate.
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*/
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public func rx_setDelegate(delegate: UIScrollViewDelegate)
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-> Disposable {
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let proxy: RxScrollViewDelegateProxy = proxyForObject(self)
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return installDelegate(proxy, delegate: delegate, retainDelegate: false, onProxyForObject: self)
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}
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}
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#endif
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