[wp-trac] [WordPress Trac] #37383: Theme browser keyboard traps

[WordPress Trac]

#37383: Theme browser keyboard traps
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 Reporter:  afercia                  |      Owner:
     Type:  defect (bug)             |     Status:  new
 Priority:  normal                   |  Milestone:  Awaiting Review
Component:  Themes                   |    Version:
 Severity:  normal                   |   Keywords:  has-screenshots needs-
  Focuses:  ui, accessibility,       |  patch
  javascript                         |
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 In the installed themes screen, clicking on a theme details opens the
 "theme browser" where users can navigate through all the installed themes,
 get the detailed information, and perform some actions.

 When using the keyboard to navigate through the modal dialog content,
 keyboard navigation is correctly constrained within the modal but I've
 noticed there are a couple of issues, not sure when they were introduced
 but if I remember correctly this was working nicely at some point.

 [[Image(https://cldup.com/dRP85ds70I.png)]]

 1
 When navigating forwards pressing `Tab`, it's impossible to reach the
 "Delete" button

 2
 When navigating backwards pressing `Shift+Tab`, at some point you're
 trapped! Upon each `Shift+Tab` press, focus will move to the "Delete"
 button and then to the "Back" button and then to the "Delete" button
 again, etc. in an infinite loop and ignoring any other focusable control
 (see screenshot).

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Ticket URL: <https://core.trac.wordpress.org/ticket/37383>
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