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Block Editor: Add Global Styles support using theme.json file.

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This is the second piece of landing the theme.json processing in WordPress core. 
It includes the mechanism that outputs the CSS styles of a theme.json file.

Props nosolosw, youknowriad.
See #53175.

git-svn-id: https://develop.svn.wordpress.org/trunk@50973 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jorge Costa
2021-05-24 17:38:59 +00:00
parent 3236645ae7
commit 3d3aa3cd09
5 changed files with 1067 additions and 42 deletions
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46
src/wp-includes/script-loader.php
View File

@@ -2232,6 +2232,52 @@ function wp_common_block_scripts_and_styles() {
do_action( 'enqueue_block_assets' );
}
/**
* Enqueues the global styles defined via theme.json.
*
* @since 5.8.0
*
* @return void
*/
function wp_enqueue_global_styles() {
if ( ! WP_Theme_JSON_Resolver::theme_has_support() ) {
return;
}
$can_use_cache = (
( ! defined( 'WP_DEBUG' ) || ! WP_DEBUG ) &&
( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) &&
( ! defined( 'REST_REQUEST' ) || ! REST_REQUEST ) &&
! is_admin()
);
$stylesheet = null;
if ( $can_use_cache ) {
$cache = get_transient( 'global_styles' );
if ( $cache ) {
$stylesheet = $cache;
}
}
if ( null === $stylesheet ) {
$settings = get_default_block_editor_settings();
$theme_json = WP_Theme_JSON_Resolver::get_merged_data( $settings );
$stylesheet = $theme_json->get_stylesheet();
if ( $can_use_cache ) {
set_transient( 'global_styles', $stylesheet, MINUTE_IN_SECONDS );
}
}
if ( empty( $stylesheet ) ) {
return;
}
wp_register_style( 'global-styles', false, array(), true, true );
wp_add_inline_style( 'global-styles', $stylesheet );
wp_enqueue_style( 'global-styles' );
}
/**
* Checks if the editor scripts and styles for all registered block types
* should be enqueued on the current screen.