[wp-trac] [WordPress Trac] #41589: Add aria-current="page" to the admin menu current item

[WordPress Trac]

#41589: Add aria-current="page" to the admin menu current item
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 Reporter:  afercia         |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Administration  |    Version:
 Severity:  normal          |   Keywords:  aria-current
  Focuses:  accessibility   |
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 See also #40833.

 The `aria-current` attribute is a simple, effective way to communicate to
 assistive technologies users which is the current item within a set of
 items. It can take different kind of values, depending on the nature of
 the set of items. Reference: https://www.w3.org/TR/wai-aria-1.1/#aria-
 current

 For a navigation menu, the appropriate value is `page`. All the major
 screen readers support it in their latest versions. Code examples, support
 table, and demo videos by Léonie Watson: http://design-patterns.tink.uk
 /aria-current/

 I'd propose to add `aria-current="page"` to the current item in the admin
 menu. The only issue there is that the top-level item is repeated also as
 a sub-item:

 [[Image(https://cldup.com/k_GYp6VZ03.png)]]

 In this case, I'd propose to add `aria-current="page"` to the sub-item, so
 it's on the same item that has the `current` CSS class. This would work
 well also in the responsive view, where the active group of items is
 always expanded. Worth noting the menu in the responsive view could be
 further improved for accessibility, but that's a bit out of the scope of
 this ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/41589>
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