Prevent the done button from dismissing automatically the popover

[josselin-oudry]

Hi there,

Thanks for making this great pod. We have a use case where we set the very first item of the popover datasource with an empty row because we do not want to have a default selected row. This is to make sure that the user consciously picks an option. Now if the Done button is tapped while the first row is selected we just want to display an error banner on top of the screen but NOT dismiss the popover.

I could not find a way to override the behaviour of setDoneButton so that on a particular condition is does NOT dismiss the popover. So for now even though this is not ideal because of the induced flickering effect I am doing this:

myPickerPopover
        .setSelectedRow(0)
        .setDoneButton(title: "OK"),
                       action: { popover, selectedRow, selectedID in

            if selectedRow == 0 {

                self.presentToast("Please select an option")

                popover
                .disappear(completion: {
                    popover.appear(originView: originView, baseViewController: self)
                })

            } else {

                self.pushSomeViewController(
                    with: selecteID)
            }
        })