macOS NSPopover Appear from Menubar

[AppleDev879]

I'm developing a simple menu bar app in which an icon in the menu bar should show an NSPopover. How can I get the popover to display based on the icon's position in the menubar?

The popular calendar app, Fantastical, is a good example of this behavior.

Thanks.

 

[jiminaus]

The trick seems be to set a custom view in the status item and use the custom view when sending showRelativeToRect:ofView:preferredEdge: to the NSPopover. But you'll need to custom draw the view and handle mouseDown in the view.

 

[Catfish_Man]

Note that NSPopover has some pretty serious issues with control focus when used from the menubar. Fantastical's popover is a custom version, I believe.