[wp-trac] [WordPress Trac] #25698: Speed up slow Menus Panel for menus with many items

[WordPress Trac]

#25698: Speed up slow Menus Panel for menus with many items
-------------------------------------+-------------------------------------
 Reporter:  sevenspark               |       Owner:  helen
     Type:  enhancement              |      Status:  closed
 Priority:  normal                   |   Milestone:  4.2
Component:  Menus                    |     Version:  3.6
 Severity:  normal                   |  Resolution:  fixed
 Keywords:  has-patch 2nd-opinion    |     Focuses:  accessibility,
  commit                             |  javascript
-------------------------------------+-------------------------------------
Changes (by helen):

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


Comment:

 In [changeset:"31604"]:
 {{{
 #!CommitTicketReference repository="" revision="31604"
 Nav menus: Better JS performance on initial load of edit screen.

 The accessibility helpers previously processed all items when editing a
 menu, which was quite slow to the point of being unresponsive for large
 menus. They now only process items when they are expanded or a user comes
 near them in some way, such as hover or focus.

 Also simplifies a redundant set of click event handlers down to one, which
 further enhances performance.

 props atimmer, sevenspark.
 fixes #25698.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/25698#comment:23>
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