[wp-trac] [WordPress Trac] #31336: Customizer: separate navigation from options UI for better UX by removing accordion behavior

[WordPress Trac]

#31336: Customizer: separate navigation from options UI for better UX by removing
accordion behavior
--------------------------+------------------------------------------------
 Reporter:                |       Owner:  ocean90
  celloexpressions        |      Status:  assigned
     Type:  enhancement   |   Milestone:  4.3
 Priority:  normal        |     Version:  4.0
Component:  Customize     |  Resolution:
 Severity:  normal        |     Focuses:  ui, accessibility, administration
 Keywords:                |
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Comment (by westonruter):

 I found a couple regressions since this was introduced:

  * The `completeCallback` is not always called when
 `section.onChangeExpanded()` fires.
  * When a section becomes inactive (`active` state goes to `false) and it
 is currently expanded, the Customizer panel then becomes blank as the
 section is hidden; it needs to collapse the section first before hiding
 the element.

 I have fixes in [attachment:customize-controls.js.regressions.diff] which
 is part of a [https://github.com/xwp/wordpress-develop/pull/91 PR] I have
 open for work being done on Menu Customizer.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31336#comment:110>
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