Получает готовый CSS-код из смерженных данных theme.json, вариаций стилей и кастомных настроек пользователя.
Функция собирает пресеты (палитры, масштабы, границы и т. д.), переменные и другие объявления из theme.json, учитывает кастомные правки в панели «Глобальные стили», а затем превращает их в CSS строку.
Результат кэшируется в object-cache (группа theme_json) и не кэшируется при включённом dev-режиме theme.
Resolves relative paths in theme.json styles to theme absolute paths.
С версии 7.0.0
Deprecated 'base-layout-styles' type; classic themes now receive full styles with layout-specific alignment rules skipped via base_layout_styles option.
Код wp_get_global_stylesheet() wp get global stylesheet WP 7.0
function wp_get_global_stylesheet( $types = array() ) {
/*
* Ignore cache when the development mode is set to 'theme', so it doesn't interfere with the theme
* developer's workflow.
*/
$can_use_cached = empty( $types ) && ! wp_is_development_mode( 'theme' );
/*
* By using the 'theme_json' group, this data is marked to be non-persistent across requests.
* @see `wp_cache_add_non_persistent_groups()`.
*
* The rationale for this is to make sure derived data from theme.json
* is always fresh from the potential modifications done via hooks
* that can use dynamic data (modify the stylesheet depending on some option,
* settings depending on user permissions, etc.).
* See some of the existing hooks to modify theme.json behavior:
* @see https://make.wordpress.org/core/2022/10/10/filters-for-theme-json-data/
*
* A different alternative considered was to invalidate the cache upon certain
* events such as options add/update/delete, user meta, etc.
* It was judged not enough, hence this approach.
* @see https://github.com/WordPress/gutenberg/pull/45372
*/
$cache_group = 'theme_json';
$cache_key = 'wp_get_global_stylesheet';
if ( $can_use_cached ) {
$cached = wp_cache_get( $cache_key, $cache_group );
if ( $cached ) {
return $cached;
}
}
$tree = WP_Theme_JSON_Resolver::resolve_theme_file_uris( WP_Theme_JSON_Resolver::get_merged_data() );
if ( empty( $types ) ) {
$types = array( 'variables', 'styles', 'presets' );
}
/*
* Enable base layout styles only mode for classic themes without theme.json.
* This skips alignment styles that target .wp-site-blocks which is only used by block themes.
*/
$options = array();
if ( ! wp_is_block_theme() && ! wp_theme_has_theme_json() ) {
$options['base_layout_styles'] = true;
}
/*
* If variables are part of the stylesheet, then add them.
* This is so themes without a theme.json still work as before 5.9:
* they can override the default presets.
* See https://core.trac.wordpress.org/ticket/54782
*/
$styles_variables = '';
if ( in_array( 'variables', $types, true ) ) {
/*
* Only use the default, theme, and custom origins. Why?
* Because styles for `blocks` origin are added at a later phase
* (i.e. in the render cycle). Here, only the ones in use are rendered.
* @see wp_add_global_styles_for_blocks
*/
$origins = array( 'default', 'theme', 'custom' );
$styles_variables = $tree->get_stylesheet( array( 'variables' ), $origins, $options );
$types = array_diff( $types, array( 'variables' ) );
}
/*
* For the remaining types (presets, styles), we do consider origins:
*
* - themes without theme.json: only the classes for the presets defined by core
* - themes with theme.json: the presets and styles classes, both from core and the theme
*/
$styles_rest = '';
if ( ! empty( $types ) ) {
/*
* Only use the default, theme, and custom origins. Why?
* Because styles for `blocks` origin are added at a later phase
* (i.e. in the render cycle). Here, only the ones in use are rendered.
* @see wp_add_global_styles_for_blocks
*/
$origins = array( 'default', 'theme', 'custom' );
$styles_rest = $tree->get_stylesheet( $types, $origins, $options );
}
$stylesheet = $styles_variables . $styles_rest;
if ( $can_use_cached ) {
wp_cache_set( $cache_key, $stylesheet, $cache_group );
}
return $stylesheet;
}
