1 == Angular navbar keyboard navigation ==
3 Adds basic keyboard navigation support to the Angular web client navbar as follows:
5 * Use the Tab key to move between the top-level menu items.
6 * Press Enter, Space, or the down arrow on a top-level item to open its submenu. Pressing Esc will close it.
7 * Shift-tab from the first submenu item back to the top level, and use Enter or Space to toggle the button again and close the submenu.
8 * Within the submenu, use either Tab and shift-Tab to move up and down, or the up/down arrow keys.