[wp-trac] [WordPress Trac] #47124: Admin menu: restore "Add New" in the Themes section

[WordPress Trac]

#47124: Admin menu: restore "Add New" in the Themes section
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 Reporter:  afercia                    |       Owner:  (none)
     Type:  feature request            |      Status:  new
 Priority:  normal                     |   Milestone:  Awaiting Review
Component:  Themes                     |     Version:  3.8
 Severity:  normal                     |  Resolution:
 Keywords:  has-screenshots has-patch  |     Focuses:  ui, administration
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Changes (by afercia):

 * keywords:  has-screenshots => has-screenshots has-patch


Comment:

 [attachment:"47124.diff"] adds the 'Add New' sub-menu item:

 - The new item is added at position 6 `['themes.php'][6]`. 'Customize' and
 'Widgets' are moved to position 7 and 8 respectively. 'Menus' is unchanged
 at position 10, and so on. These positions can't be overridden by plugins
 when using the correct way to add sub-menu items, which is by the means of
 `add_submenu_page()`. There's a remote chance that plugins that are using
 non-standard ways to add sub-items may be impacted but I'd say WordPress
 can't guarantee non-standard code to not be impacted. A quick dev note
 would be good anyways.
 - Given the Theme install page works only with JavaScript on, the new menu
 item uses a CSS class `hide-if-no-js` so it will not be displayed when
 JavaScript is disabled.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47124#comment:4>
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