[wp-trac] [WordPress Trac] #33754: Post meta box toggles accessibility improvements

[WordPress Trac]

#33754: Post meta box toggles accessibility improvements
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 Reporter:  afercia         |       Owner:
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  4.4
Component:  Administration  |     Version:  trunk
 Severity:  normal          |  Resolution:
 Keywords:  has-patch       |     Focuses:  ui, accessibility, javascript
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Changes (by afercia):

 * keywords:   => has-patch


Comment:

 First pass.

 - set proper `aria-expanded` initial attribute value on page load
 - toggle the buttons `aria-expanded` also when clicking on the headings
 - avoid setting `aria-expanded` on the headings
 - add `type="button"` attribute on the buttons, no need for
 `preventDefault()`
 - remove the title attribute
 - maybe better translatable string (paired with the ones used in the
 Customizer), open to suggestions
 - fix for a [http://community.nvda-project.org/ticket/5247 Firefox + NVDA
 bug] as already done in the Customizer
 - completely hide the buttons when JS is off
 - minor CSS adjustments

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Ticket URL: <https://core.trac.wordpress.org/ticket/33754#comment:1>
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