ui / makeup-listbox
Listbox is headless UI widget and does not come bundled with any CSS.
The listbox class is consumed by the following modules: listbox-button, combobox.
Automatic Selection (default)
ARROW keys move the active descendant and automatically updated the selected state. This behaviour is similar to a radio button group.
Unselected
Selected
Manual Selection
ARROW keys move the active descendant. SPACEBAR key is required to manually change the selected state.