Ian Oxley 5753d3e648 Improve a11y for the dropdown menu ...

Add role="button" to make the component report itself as a button.

Add tabindex so the menu toggle can receive keyboard focus.

Add keydown handlers for `<Enter>` and `<Space>` so the dropdown menu
toggle responds to keyboard input.

Set the aria-pressed attribute to true if the menu is open, or false if
it is closed.

2018-11-23 22:44:30 +00:00

2.1 KiB

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