owenzhao

@IBAction func printHello(_ sender: Any) {
    // 队列，以消息绑定为例
    if shouldWaitSwitch.isOn {
        while true {
            let isSuccess = WaitingTaskQueue.append(task: "你好！")
            if isSuccess { break } else { continue }
        }
        
        if let _ = shouldWaitSwitch.actions(forTarget: WaitingTaskQueue.self, forControlEvent: .valueChanged) { // already set
            return

owenzhao

@IBAction func printHello(_ sender: Any) {
    // 消息绑定
    if shouldWaitSwitch.isOn {
        if let _ = shouldWaitSwitch.actions(forTarget: self, forControlEvent: .valueChanged) { // already set
            return
        }
        
        shouldWaitSwitch.addTarget(self, action: #selector(printHello(_:)), for: .valueChanged)
    }
    else {

owenzhao

@IBAction func printHello(_ sender: Any) {
    // 延迟
    if shouldWaitSwitch.isOn {
        Timer.scheduledTimer(withTimeInterval: 0.5, repeats: true, block: { [unowned self] (timer) in
            if self.shouldWaitSwitch.isOn { return }
            
            print("你好！")
            timer.invalidate()
        })
    }

owenzhao

@IBAction func printHello(_ sender: Any) {
    // 忙等待
    DispatchQueue(label: "default").async {
        while true {
            if self.shouldWaitSwitch.isOn { continue }
            
            print("你好！")
            break
        }
    }

owenzhao

//MARK: - Help Menu
extension NSApplication {
    @IBAction func contactDeveloper(_ sender: Any) {
        let mailAddress = "your email address"
        let mailBody = NSLocalizedString("Please use Chinese or English in your mail, if you can.", comment: "mail body")
        let service = NSSharingService(named: NSSharingServiceNameComposeEmail)!
        service.recipients = [mailAddress]
        service.perform(withItems: [mailBody])
    }
}

owenzhao

func userDefaultsDidChange() {
    guard let controller = tableViewController else { return }
    
    let progressIndicator = { () -> NSProgressIndicator in
        let frame = view.frame
        let x = (frame.width - 50) / 2
        let y = (frame.height - 50) / 2
        let piFrame = NSMakeRect(x, y, 50, 50)
        let pi = NSProgressIndicator(frame: piFrame)
        pi.style = .spinningStyle

owenzhao

var rawFilenames = [String]()
// instance counter
var timer:NSTimer! = nil

func application(sender: NSApplication, openFiles filenames: [String]) {
    if shouldQuitAppAfterConvert == nil {
        shouldQuitAppAfterConvert = true
    }
    if timer != nil {
        timer.invalidate()

owenzhao

class TableViewController: NSViewController, NSTableViewDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        run()
        DispatchQueue.main.asyncAfter(wallDeadline: .now() + .milliseconds(100)) { [unowned self] () -> () in
            NotificationCenter.default.post(name: TableViewControllerDidAppear, object: self)
        }
    }
    

owenzhao

class TableViewController: NSViewController, NSTableViewDelegate {
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        run()
        Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(sendNotification), userInfo: nil, repeats: false)
    }

    func sendNotification() {
        NotificationCenter.default.post(name: TableViewControllerDidAppear, object: self)

owenzhao

// in AppDelegate.swift
let TableViewControllerDidAppear = NSNotification.Name("TableViewController did Appear")
// in PreferencesViewController.swift
class PreferencesViewController: NSViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        NotificationCenter.default.addObserver(self, selector: #selector(userDefaultsDidChange), name: UserDefaults.didChangeNotification, object: UserDefaults.standard)
        NotificationCenter.default.addObserver(self, selector: #selector(tableViewDidAppear(noti:)), name: TableViewControllerDidAppear, object: nil)