[wp-trac] [WordPress Trac] #60572: block_core_navigation_render_inner_blocks loses caret for parent items

[WordPress Trac]

#60572: block_core_navigation_render_inner_blocks loses caret for parent items
--------------------------+-----------------------------
 Reporter:  anaid         |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  6.4.3
 Severity:  minor         |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 When we build a menu via the blocks editor the regular way, and create a
 parent menu items with a submenu, the parent menu item is (somehow) marked
 as a parent. It receives a caret automatically in Twenty Twenty Four
 theme.

 When programmatically creating a menu via
 `block_core_navigation_render_inner_blocks`, the parent-child relationship
 is not marked automatically. There is no dropdown caret in the parent menu
 item.

 Reproduction scenario:
 - Twenty Twenty Four theme
 - Go to Editor and manually create Navigation
 - Parent item "Post A"
 - Add a submenu
 - Child item "Post B"
 - View the website. Post A is parent, has a dropdown caret and Post B is
 below it

 Now, do it programmatically via block_core_navigation_render_inner_blocks:

 {{{
         function block_core_navigation_render_inner_blocks($items)
         {
                 return new WP_Block_List(array(
                         new WP_Block([
                                 'blockName'    => 'core/navigation-link',
                                 'attrs'        => ["label" => "Post A"],
                                 'innerBlocks'  => array(new WP_Block([
                                         'blockName'    => 'core
 /navigation-link',
                                         'attrs'        => ["label" =>
 "Post B"],
                                         'innerBlocks'  => [],
                                         'innerHTML'    => '',
                                         'innerContent' => [],
                                 ])),
                                 'innerHTML'    => '',
                                 'innerContent' => [],
                         ])
                 ));
         }
 }}}

 View the website. There is no dropdown caret applied to the parent post
 (Post A)

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Ticket URL: <https://core.trac.wordpress.org/ticket/60572>
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