Variable: GtkPopoverMenuBar
constGtkPopoverMenuBar:"GtkPopoverMenuBar"
Defined in: generated/jsx.ts:18587
Presents a horizontal bar of items that pop up menus when clicked.

The only way to create instances of GtkPopoverMenuBar is
from a GMenuModel.
CSS nodes
menubar
├── item[.active]
┊ ╰── popover
╰── item
╰── popover
GtkPopoverMenuBar has a single CSS node with name menubar, below which
each item has its CSS node, and below that the corresponding popover.
The item whose popover is currently open gets the .active style class.
Accessibility
GtkPopoverMenuBar uses the Gtk.AccessibleRole.menu_bar role,
the menu items use the Gtk.AccessibleRole.menu_item role and
the menus use the Gtk.AccessibleRole.menu role.