[wp-trac] [WordPress Trac] #55595: Consider only registering widgets on themes that supports widgets

[WordPress Trac]

#55595: Consider only registering widgets on themes that supports widgets
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 Reporter:  spacedmonkey  |      Owner:  (none)
     Type:  enhancement   |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Widgets       |    Version:
 Severity:  normal        |   Keywords:  needs-patch
  Focuses:  performance   |
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 The `wp_widgets_init` function is run all init and is run on every
 request. This is wasteful for a number of reasons. Register a widget can
 result in a get_option lookup. Also, if the theme does not support
 widgets, then this is wasteful. Consider adding a simple check at the
 start of `wp_widgets_init` to check if the current theme supports widgets,
 before registering.

 This is specially good, considering that more and more themes are now
 block based and do not use widgets at all.

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Ticket URL: <https://core.trac.wordpress.org/ticket/55595>
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