79 lines
2.1 KiB
Swift
79 lines
2.1 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 © 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 `delegate`.
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- returns: Instance of delegate proxy that wraps `delegate`.
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*/
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public func createRxDelegateProxy() -> RxScrollViewDelegateProxy {
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return RxScrollViewDelegateProxy(parentObject: self)
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}
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}
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extension Reactive where Base: UIScrollView {
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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 delegate: DelegateProxy {
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return RxScrollViewDelegateProxy.proxyForObject(base)
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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 contentOffset: ControlProperty<CGPoint> {
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let proxy = RxScrollViewDelegateProxy.proxyForObject(base)
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let bindingObserver = UIBindingObserver(UIElement: self.base) { scrollView, contentOffset in
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scrollView.contentOffset = contentOffset
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}
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return ControlProperty(values: proxy.contentOffsetSubject, valueSink: bindingObserver)
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}
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/**
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Bindable sink for `scrollEnabled` property.
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*/
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public var scrollEnabled: AnyObserver<Bool> {
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return UIBindingObserver(UIElement: self.base) { scrollView, scrollEnabled in
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scrollView.isScrollEnabled = scrollEnabled
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}.asObserver()
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}
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/**
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Installs delegate as forwarding delegate on `delegate`.
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Delegate won't be retained.
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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 setDelegate(_ delegate: UIScrollViewDelegate)
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-> Disposable {
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return RxScrollViewDelegateProxy.installForwardDelegate(delegate, retainDelegate: false, onProxyForObject: self.base)
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}
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}
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#endif
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