Sets the preferred position for @popover to appear. If the @popover
is currently visible, it will be immediately updated.
This preference will be respected where possible, although
on lack of space (eg. if close to the window edges), the
#GtkPopover may choose to appear on the opposite side
Sets the preferred position for @popover to appear. If the @popover is currently visible, it will be immediately updated.
This preference will be respected where possible, although on lack of space (eg. if close to the window edges), the #GtkPopover may choose to appear on the opposite side