NSStatusItem fullscreen issues

I’m making a statusbar app that displays an NSPopover when the NSStatusItem is clicked, like this:

enter image description here

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  • I have added the ability to resize the popover by dragging on the edges, by subclassing the popover’s view like this:

    class CMView: NSView {
        let tolerance : CGFloat = 10
        var state = false
        override func mouseDown(theEvent: NSEvent) {
            let point = self.convertPoint(theEvent.locationInWindow, fromView: nil)
            if (point.y <= tolerance) {
                state = true
        override func mouseDragged(theEvent: NSEvent) {
            if (state) {
                let point = self.convertPoint(theEvent.locationInWindow, fromView: nil)
                self.frame = NSRect(
                    x: self.frame.origin.x,
                    y: self.frame.origin.y,
                    width: self.frame.size.width,
                    height: self.frame.size.height-point.y)
                popover.contentSize = self.frame.size
        override func mouseUp(theEvent: NSEvent) {
            state = false

    This only works if the desktop isn’t in full screen. If I try to resize it in fullscreen, it simply doesn’t work, and the popover arrow disappears mysteriously.

    It seems like the popover isn’t redrawing when invoked in a fullscreen environment. Is there any way around this problem?

    Solutions Collect From Internet About “NSStatusItem fullscreen issues”

    Here at WWDC. Asking the same question. You have to have an app that’s an UIElement app – meaning no dock icon, no main menu.