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94 lines
2.2 KiB
94 lines
2.2 KiB
//
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// ControlTarget.swift
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// RxCocoa
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//
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// Created by Krunoslav Zaher on 2/21/15.
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// Copyright © 2015 Krunoslav Zaher. All rights reserved.
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//
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#if os(iOS) || os(tvOS) || os(macOS)
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import RxSwift
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#if os(iOS) || os(tvOS)
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import UIKit
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typealias Control = UIKit.UIControl
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#if swift(>=4.2)
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public typealias ControlEvents = UIKit.UIControl.Event
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#else
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public typealias ControlEvents = UIKit.UIControlEvents
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#endif
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#elseif os(macOS)
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import Cocoa
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typealias Control = Cocoa.NSControl
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#endif
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// This should be only used from `MainScheduler`
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final class ControlTarget: RxTarget {
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typealias Callback = (Control) -> Void
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let selector: Selector = #selector(ControlTarget.eventHandler(_:))
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weak var control: Control?
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#if os(iOS) || os(tvOS)
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let controlEvents: UIControlEvents
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#endif
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var callback: Callback?
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#if os(iOS) || os(tvOS)
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init(control: Control, controlEvents: UIControlEvents, callback: @escaping Callback) {
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MainScheduler.ensureRunningOnMainThread()
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self.control = control
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self.controlEvents = controlEvents
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self.callback = callback
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super.init()
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control.addTarget(self, action: selector, for: controlEvents)
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let method = self.method(for: selector)
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if method == nil {
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rxFatalError("Can't find method")
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}
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}
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#elseif os(macOS)
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init(control: Control, callback: @escaping Callback) {
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MainScheduler.ensureRunningOnMainThread()
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self.control = control
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self.callback = callback
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super.init()
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control.target = self
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control.action = self.selector
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let method = self.method(for: self.selector)
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if method == nil {
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rxFatalError("Can't find method")
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}
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}
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#endif
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@objc func eventHandler(_ sender: Control!) {
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if let callback = self.callback, let control = self.control {
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callback(control)
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}
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}
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override func dispose() {
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super.dispose()
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#if os(iOS) || os(tvOS)
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self.control?.removeTarget(self, action: self.selector, for: self.controlEvents)
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#elseif os(macOS)
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self.control?.target = nil
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self.control?.action = nil
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#endif
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self.callback = nil
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}
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}
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#endif
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