n3tr

if ('serviceWorker' in navigator) {
  navigator.serviceWorker.register('/service-workerw.js').then(function(registration) {
    // register success
    console.log('ServiceWorker registration successful with scope: ', registration.scope);
  }).catch(function(err) {
    // registration failed :(
    console.log('ServiceWorker registration failed: ', err);
  });
}

n3tr

import React from 'react'

const Button = (props) => {
  return <button className="button" {...props} />
}

function isStateless(component) {
  return !(component.prototype && component.prototype.render);
}

n3tr

fileprivate extension NSTouchBarCustomizationIdentifier {
    static let windowBar = NSTouchBarCustomizationIdentifier("com.n3tr.countertouchbar.touchbar")
}

fileprivate extension NSTouchBarItemIdentifier {
    static let label = NSTouchBarItemIdentifier("com.n3tr.countertouchbar.label")
}

class WindowController: NSWindowController {
  // ...

n3tr

class WindowController: NSWindowController {
    // ..
    override func makeTouchBar() -> NSTouchBar? {
        let touchBar = NSTouchBar()
        touchBar.delegate = self
        touchBar.customizationIdentifier = .touchBar
        touchBar.defaultItemIdentifiers = [.label]
        return touchBar
    }
}

n3tr

extension WindowController: NSTouchBarDelegate {
    func touchBar(_ touchBar: NSTouchBar, makeItemForIdentifier identifier: NSTouchBarItemIdentifier) -> NSTouchBarItem? {
        switch identifier {
        case NSTouchBarItemIdentifier.label:
            // Create custom touch bar Item
            let custom = NSCustomTouchBarItem(identifier: identifier)
            custom.customizationLabel = "Label Title"
            
            // Create label as NSTextField
            let label = NSTextField(labelWithString: "Hello, TouchBar")

n3tr

fileprivate extension NSTouchBarCustomizationIdentifier {
    static let windowBar = NSTouchBarCustomizationIdentifier("com.n3tr.countertouchbar.touchbar")
}

fileprivate extension NSTouchBarItemIdentifier {
    static let label = NSTouchBarItemIdentifier("com.n3tr.countertouchbar.label")
}

class WindowController: NSWindowController {
  // ...

n3tr

override func makeTouchBar() -> NSTouchBar? {
    let touchBar = NSTouchBar()
    touchBar.delegate = self
    touchBar.customizationIdentifier = .touchBar
    touchBar.defaultItemIdentifiers = [.label, .fixedSpaceSmall, .otherItemsProxy]
    return touchBar
}

n3tr

// ViewController.swift
fileprivate extension NSTouchBarCustomizationIdentifier {
    static let counterTouchBar = NSTouchBarCustomizationIdentifier("com.n3tr.countertouchbar.counter")
}

fileprivate extension NSTouchBarItemIdentifier {
    static let increase = NSTouchBarItemIdentifier("com.n3tr.countertouchbar.increase")
    static let decrease = NSTouchBarItemIdentifier("com.n3tr.countertouchbar.decrease")
    static let counter = NSTouchBarItemIdentifier("com.n3tr.countertouchbar.counter")
}

n3tr

class ViewController: NSViewController {
    // ...
    override func makeTouchBar() -> NSTouchBar? {
        let touchBar = NSTouchBar()
        touchBar.delegate = self
        touchBar.customizationIdentifier = .counterTouchBar
        touchBar.defaultItemIdentifiers = [.increase, .counter, .decrease]
        return touchBar
    }    
}

n3tr

// ViewController.swift
class ViewController: NSViewController {
    // (1)
    dynamic var currentCounter = 0
    
    // ...
    
    // (2)
    func increaseCounter() {
        currentCounter += 1