[wp-trac] [WordPress Trac] #31295: Programmatically changing sidebars_widgets Customizer settings causes unexpected widget control focus

[WordPress Trac]

#31295: Programmatically changing sidebars_widgets Customizer settings causes
unexpected widget control focus
--------------------------+-----------------
 Reporter:  westonruter   |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  4.2
Component:  Customize     |    Version:  4.1
 Severity:  normal        |   Keywords:
  Focuses:  javascript    |
--------------------------+-----------------
 Normally when adding a new widget to a sidebar in the Customizer, the
 expected UI is for the newly-added widget to receive keyboard focus for
 editing. However, this is currently happening regardless of whether or not
 a `sidebars_widgets` setting was updated via this Add Widget UI
 interaction, or if it was done programmatically. If, in the latter case, a
 widget was added to a `sidebars_widgets[...]` setting, it is not expected
 that this should cause the control to be focused. Any such focus should be
 done programmatically instead.

 To reproduce the issue, enter the following commands in the JS console
 while in the Customizer with a populated `sidebar-1`:

 {{{#!js
 wp.customize.section( 'sidebar-widgets-sidebar-1' ).expand()
 var widgetIds = wp.customize( 'sidebars_widgets[sidebar-1]' ).get().slice(
 0 );
 var firstWidgetId = widgetIds.shift();
 wp.customize('sidebars_widgets[sidebar-1]').set( widgetIds );

 var newWidgetIds = widgetIds.slice( 0 );
 newWidgetIds.push( firstWidgetId );
 wp.customize('sidebars_widgets[sidebar-1]').set( newWidgetIds );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/31295>
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