89 lines
1.8 KiB
Swift
89 lines
1.8 KiB
Swift
//
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// UIBarButtonItem.swift
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// RxCocoa
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//
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// Created by Daniel Tartaglia on 5/31/15.
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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 UIKit
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#if !RX_NO_MODULE
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import RxSwift
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#endif
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extension UIBarButtonItem {
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/**
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Bindable sink for `enabled` property.
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*/
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public var rx_enabled: ObserverOf<Bool> {
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return ObserverOf { [weak self] event in
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MainScheduler.ensureExecutingOnScheduler()
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switch event {
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case .Next(let value):
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self?.enabled = value
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case .Error(let error):
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bindingErrorToInterface(error)
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break
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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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Reactive wrapper for target action pattern on `self`.
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*/
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public var rx_tap: ControlEvent<Void> {
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let source: Observable<Void> = AnonymousObservable { observer in
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let target = BarButtonItemTarget(barButtonItem: self) {
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observer.on(.Next())
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}
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return target
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}.takeUntil(rx_deallocated)
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return ControlEvent(source: source)
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}
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}
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@objc
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class BarButtonItemTarget: NSObject, Disposable {
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typealias Callback = () -> Void
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weak var barButtonItem: UIBarButtonItem?
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var callback: Callback!
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init(barButtonItem: UIBarButtonItem, callback: () -> Void) {
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self.barButtonItem = barButtonItem
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self.callback = callback
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super.init()
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barButtonItem.target = self
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barButtonItem.action = Selector("action:")
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}
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deinit {
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dispose()
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}
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func dispose() {
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MainScheduler.ensureExecutingOnScheduler()
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barButtonItem?.target = nil
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barButtonItem?.action = nil
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callback = nil
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}
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func action(sender: AnyObject) {
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callback()
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}
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}
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#endif
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