Swift Snippets

• https://stackoverflow.com/questions/59635971/show-nsmenu-only-on-nsstatusbarbutton-right-click

func applicationDidFinishLaunching(_ aNotification: Notification) {
        statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
        statusItem.button?.action = #selector(onClick)
        statusItem.button?.sendAction(on: [.leftMouseUp, .rightMouseUp])
        
        menu = NSMenu()
        menu.addItem(NSMenuItem(title: "Quit", action: #selector(NSApplication.terminate(_:)), keyEquivalent: "q"))
        menu.delegate = self
        
    }
    
    @objc func onClick(sender: NSStatusItem) {
        
        let event = NSApp.currentEvent!
       
        if event.type == NSEvent.EventType.rightMouseUp {
            // right click, show quit menu
            statusItem.menu = menu;
            menu.popUp(positioning: nil, 
                at: NSPoint(x: 0, y: statusItem.statusBar!.thickness),
                in: statusItem.button)
        } else {
           // main click 
        }
    }
    @objc func menuDidClose(_ menu: NSMenu) {
        // remove menu when closed so we can override left click behavior
        statusItem.menu = nil
    }

OK Got exercise working but status bar truncates length of time. Setting a length of 53 seems to be th e max - any larger an the display fails. Have not worked out how to user a smaller font so it will not overflow the space available.

Mouse Location

From 2015...

• https://stackoverflow.com/questions/31931403/getting-mouse-coordinates-in-swift

If you would like to monitor events on any window when your app is active, you can add a LocalMonitorForEvents matching mouseMoved mask and if it is not active a GlobalMonitorForEvents. Note that you need set to your window property acceptsMouseMovedEvents to true

import Cocoa

class ViewController: NSViewController {

   lazy var window: NSWindow = self.view.window!
   var mouseLocation: NSPoint { NSEvent.mouseLocation }
   var location: NSPoint { window.mouseLocationOutsideOfEventStream }
   override func viewDidLoad() {
       super.viewDidLoad()
       NSEvent.addLocalMonitorForEvents(matching: [.mouseMoved]) {
           print("mouseLocation:", String(format: "%.1f, %.1f", self.mouseLocation.x, self.mouseLocation.y))
           print("windowLocation:", String(format: "%.1f, %.1f", self.location.x, self.location.y))
           return $0
       }
       NSEvent.addGlobalMonitorForEvents(matching: [.mouseMoved]) { _ in
           print(String(format: "%.0f, %.0f", self.mouseLocation.x, self.mouseLocation.y))
       }
   }
   override func viewWillAppear() {
       super.viewWillAppear()
       window.acceptsMouseMovedEvents = true
   }

}

You can get the current mouse location in this way:

Declare this in your view controller class:

var mouseLocation: NSPoint? { self.view.window?.mouseLocationOutsideOfEventStream }

Then, you can get the current mouse location and convert in your desired view coordinates:

if let currentMouseLocation = self.mouseLocation{

     let pointInTargetView = self.**targetView**.convert(currentMouseLocation, from: self.view)

}