gtk:popover-cascade-popdown (object)

object -- a gtk:popover widget
setting -- a boolean whether the popover should follow a child closing

Accessor of the cascade-popdown slot of the gtk:popover class. The gtk:popover-cascade-popdown function returns whether the popover will close after a modal child is closed. If true, the popover will be closed when a child modal popover is closed. If false, the popover will stay visible.