[wp-trac] [WordPress Trac] #49406: Introduce register_theme_support method

WordPress Trac noreply at wordpress.org
Tue Feb 11 15:08:54 UTC 2020

#49406: Introduce register_theme_support method
 Reporter:  kadamwhite   |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Themes       |    Version:  trunk
 Severity:  normal       |   Keywords:
  Focuses:  rest-api     |
 In #49037 support was added to list support for core theme features in the
 `/themes` endpoint. This patch was fairly conservative and manually
 safelisted specific theme supports by manually enumerating their expected
 schema in the controller.

 Custom theme support values introduced by non-core plugins are not yet
 supported due to the lack of a safe way to validate the shape and content
 of their associated values. Several major plugins like
 handbook/#section-5 WooCommerce] and [https://jetpack.com/support
 /infinite-scroll/ jetpack] do implement their own theme-support features.
 While we can theoretically write out the schema for all high-profile
 plugins manually, this approach is both inequitable (what is "high-
 profile?") and would be unsustainably difficult to maintain.

 The way that we're able to surface metadata to the API is by explicitly
 registering it using `register_post_meta` (and related functions). In
 #49037 therefore, @spacedmonkey
 proposed] introducing a new `register_theme_support` method which core &
 third-party themes can use to describe the details of their features. This
 method could be used by plugins to describe the theme features they
 introduce, and the values used in that registration could then be used to
 safely populate theme support details in this endpoint.

Ticket URL: <https://core.trac.wordpress.org/ticket/49406>
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