[wp-trac] [WordPress Trac] #42049: Customize Themes: extensibility improvements

[WordPress Trac]

#42049: Customize Themes: extensibility improvements
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 Reporter:  celloexpressions  |      Owner:
     Type:  enhancement       |     Status:  new
 Priority:  normal            |  Milestone:  4.9
Component:  Customize         |    Version:  trunk
 Severity:  normal            |   Keywords:  needs-patch
  Focuses:                    |
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 Extensiblility was a goal of #37661. Now that the initial framework is in
 core, let's audit the potential to extend the core functionality.

 In particular, `WP_Customize_Themes_Section` should make it as easy as
 possible for developers to add theme sections for browsing themes from
 external sources. One initial improvement would be an instance parameter
 that determines whether searching and filtering is done locally on the
 loaded themes (like the installed section) or remotely through a theme
 directory API (like the wporg section) rather than using hardcoded checks
 for `installed` and `wporg`. We could also use filters in the load themes
 action to minimize the need for changes in themes section subclasses.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42049>
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