jquery/jquery-ui — pull request #755 by robertbeuligmann (2012-10-16 13:16:52+00:00)
Title: Selectmenu: ARIA tweaks for keyboard events and closed menu operation

1) The combobox (the a.ui-button element) is now set to refer to the same label as the base select using ARIA labelledby.

2) Set the combobox to update its aria-activedependent attribute from the focus callback of the internal menu instance. Does the aria-activedependent attribute need to be cleared when the menu instance is closed?

3) The Space key will now active/deactivate the menu.