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_wp_add_block_level_preset_styles is private and should not be used in themes or plugins directly.
_wp_add_block_level_preset_styles › WordPress Function
Since6.2.0
Deprecatedn/a
› _wp_add_block_level_preset_styles ( $pre_render, $block )
Access: |
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Parameters: (2) |
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Returns: |
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Defined at: |
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Render the block level presets stylesheet.
Source
function _wp_add_block_level_preset_styles( $pre_render, $block ) {
// Return early if the block has not support for descendent block styles.
$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
if ( ! block_has_support( $block_type, '__experimentalSettings', false ) ) {
return null;
}
// return early if no settings are found on the block attributes.
$block_settings = isset( $block['attrs']['settings'] ) ? $block['attrs']['settings'] : null;
if ( empty( $block_settings ) ) {
return null;
}
$class_name = '.' . _wp_get_presets_class_name( $block );
// the root selector for preset variables needs to target every possible block selector
// in order for the general setting to override any bock specific setting of a parent block or
// the site root.
$variables_root_selector = '*,[class*="wp-block"]';
$registry = WP_Block_Type_Registry::get_instance();
$blocks = $registry->get_all_registered();
foreach ( $blocks as $block_type ) {
/*
* We only want to append selectors for blocks using custom selectors
* i.e. not `wp-block-<name>`.
*/
$has_custom_selector =
( isset( $block_type->supports['__experimentalSelector'] ) && is_string( $block_type->supports['__experimentalSelector'] ) ) ||
( isset( $block_type->selectors['root'] ) && is_string( $block_type->selectors['root'] ) );
if ( $has_custom_selector ) {
$variables_root_selector .= ',' . wp_get_block_css_selector( $block_type );
}
}
$variables_root_selector = WP_Theme_JSON::scope_selector( $class_name, $variables_root_selector );
// Remove any potentially unsafe styles.
$theme_json_shape = WP_Theme_JSON::remove_insecure_properties(
array(
'version' => WP_Theme_JSON::LATEST_SCHEMA,
'settings' => $block_settings,
)
);
$theme_json_object = new WP_Theme_JSON( $theme_json_shape );
$styles = '';
// include preset css variables declaration on the stylesheet.
$styles .= $theme_json_object->get_stylesheet(
array( 'variables' ),
null,
array(
'root_selector' => $variables_root_selector,
'scope' => $class_name,
)
);
// include preset css classes on the the stylesheet.
$styles .= $theme_json_object->get_stylesheet(
array( 'presets' ),
null,
array(
'root_selector' => $class_name . ',' . $class_name . ' *',
'scope' => $class_name,
)
);
if ( ! empty( $styles ) ) {
wp_enqueue_block_support_styles( $styles );
}
return null;
}