projectblacklight/blacklight — pull request #893 by mejackreed (2014-04-30 00:06:22+00:00)
Title: adds role="menu" to button dropdowns for keyboard accessibility

Per Jennifer Vine's comments about some accessibility issues in Blacklight. This patch enables down arrow to navigate search widget dropdown lists (sort-dropdown and per_page_dropdown).

http://www.w3.org/TR/wai-aria/roles#listbox