[wp-trac] [WordPress Trac] #27705: Keyboard navigation should be constrained to the theme installer overlay

[WordPress Trac]

#27705: Keyboard navigation should be constrained to the theme installer overlay
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 Reporter:  nacin         |       Owner:  afercia
     Type:  defect (bug)  |      Status:  closed
 Priority:  low           |   Milestone:  4.7
Component:  Themes        |     Version:  3.4
 Severity:  normal        |  Resolution:  fixed
 Keywords:                |     Focuses:  accessibility, administration
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Changes (by afercia):

 * owner:   => afercia
 * status:  new => closed
 * resolution:   => fixed


Comment:

 In [changeset:"38520"]:
 {{{
 #!CommitTicketReference repository="" revision="38520"
 Accessibility: Improve the Customizer and Theme Installer initial focus.

 The Customizer and Theme Installer open in full overlays that need to
 receive
 focus. Also, keyboard navigation should be constrained within the
 overlays. Using
 CSS `visibility` to hide all the content except the overlays, makes them
 the only
 available and focusable content and allows browsers to handle focus
 natively.

 See #29158.
 Fixes #33228, #27705.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/27705#comment:10>
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