NSPopover not closing

Question

Im trying to make so if the user clicks on the menu icon to show the popover that the popover closes if the user clicks anywhere but popover. I set the behavior to transient but thats not doing what I thought.

Now if the user clicks somewhere on the popover bringing focus to it, then the user can click somewhere else on the screen and the popover will close. If I could force a focus to the popover I think that would fix my problem as well. Unfortunately I dont know how to do that either.

class AppDelegate: NSObject, NSApplicationDelegate {

    let view : NSView!
    let statusItem: NSStatusItem
    let popover: NSPopover
    let button : NSButton!

    override init() {

        statusItem = NSStatusBar.systemStatusBar().statusItemWithLength(-1)
        if let statusButton = statusItem.button {
            appStatusButton = statusButton
            statusButton.image = NSImage(named: "icon128off")
            statusButton.alternateImage = NSImage(named: "icon128")
            statusButton.action = "onPress:"
        }

        popover = NSPopover()
        popover.animates = false
        popover.contentViewController = ViewController()
        popover.behavior = .Transient
    }


}

Here is the view controller

class ViewController: NSViewController, WKNavigationDelegate{

   var webView : WKWebView!

   override func loadView() {
      view = NSView()
      view.translatesAutoresizingMaskIntoConstraints = false
      view.addConstraint(NSLayoutConstraint(
        item: view, attribute: .Width, relatedBy: .Equal,
        toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 580))
      view.addConstraint(NSLayoutConstraint(
        item: view, attribute: .Height, relatedBy: .Equal,
        toItem: nil, attribute: .NotAnAttribute, multiplier: 1.0, constant: 425))

    }
}

Answer 1

Swift 5:

NSApplication.shared.activate(ignoringOtherApps: true)

Add this right before you open the popup

NSApplication.sharedApplication().activateIgnoringOtherApps(true)

Thanks to this guy!

Answer 2

Swift 5.1

Problem is that the PopOver's Window is not becoming key, to fix this just force it to become key just after showing it. For example supposing pop is a NSPopOver :

pop.show(relativeTo: button.bounds, of: button, preferredEdge: .minY)
pop.contentViewController?.view.window?.makeKey()

Answer 3

I have faced with the exact same issue, none of the answers works for me. But i tried a combination of showing below which works flawlessly

        self.popover.behavior = NSPopover.Behavior.transient
        NSApp.activate(ignoringOtherApps: true)
        self.popover.show(relativeTo: button.bounds, of: button, preferredEdge: NSRectEdge.minY)

Answer 4

I do not recommend to use behaviour property of the popover. It is better to handle it in your application. see how it is done in this link I answered almost same problem. Xcode Swift OS X popover behavior

Answer 5

With addition to John Pollard's answer

If you're using Swift 4+, Add this code before showing the popup:

NSApplication.shared.activate(ignoringOtherApps: true)