[wp-trac] [WordPress Trac] #53176: Block Editor: Backport the FSE infrastructure required to make the template editor work for classic themes.

[WordPress Trac]

#53176: Block Editor: Backport the FSE infrastructure required to make the template
editor work for classic themes.
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 Reporter:  youknowriad               |       Owner:  youknowriad
     Type:  task (blessed)            |      Status:  closed
 Priority:  normal                    |   Milestone:  5.8
Component:  Editor                    |     Version:
 Severity:  normal                    |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by westonruter):

 In [changeset:"61469" 61469]:
 {{{
 #!CommitTicketReference repository="" revision="61469"
 Themes: Use `WP_HTML_Tag_Processor` to insert the block template skip link
 instead of JavaScript.

 * The skip link now works when JavaScript is turned off.
 * By removing the script, the amount of JavaScript sent to the client is
 reduced for a very marginal performance improvement.
 * A new `wp-block-template-skip-link` stylesheet is registered, with
 minification and `path` data for inlining.
 * The CSS for the skip link now has an RTL version generated, although it
 is not yet served when the styles are inlined. See #61625.
 * The `wp_enqueue_block_template_skip_link()` function now exclusively
 enqueues the stylesheet since the script is removed.
 * For backwards-compatibility, the skip link will continue to be omitted
 if `the_block_template_skip_link()` is unhooked from the `wp_footer`
 action or `wp_enqueue_block_template_skip_link()` is unhooked from
 `wp_enqueue_scripts`.

 Developed in https://github.com/WordPress/wordpress-develop/pull/10676

 Follow-up to [56932], [51003].

 Props rutviksavsani, westonruter, dmsnell, whiteshadow01, Slieptsov.
 See #59505, #53176.
 Fixes #64361.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/53176#comment:22>
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