Global public interface method to generate styles from a single style object, e.g., the value of a block’s attributes.style object or the top level styles in theme.json.

See: https://developer.wordpress.org/block-editor/reference-guides/theme-json-reference/theme-json-living/#styles and https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/

Example usage:

$styles = wp_style_engine_get_styles( array( ‘color’ => array( ‘text’ => ‘#cccccc’ ) ) ); // Returns array( 'css' => 'color: #cccccc', 'declarations' => array( 'color' => '#cccccc' ), 'classnames' => 'has-color' ).

$block_styles array Required

The style object.

$options array Optional

An array of options.

• contextstring|null
  An identifier describing the origin of the style object, e.g., 'block-supports' or 'global-styles'. Default is null.
  When set, the style engine will attempt to store the CSS rules, where a selector is also passed.
• convert_vars_to_classnamesbool
  Whether to skip converting incoming CSS var patterns, e.g., var:preset|<PRESET_TYPE>|<PRESET_SLUG>, to var( --wp--preset--* ) values. Default false.
• selectorstring
  Optional. When a selector is passed, the value of $css in the return value will comprise a full CSS rule $selector { ...$css_declarations }, otherwise, the value will be a concatenated string of CSS declarations.

Default: array()

array

• cssstring
  A CSS ruleset or declarations block formatted to be placed in an HTML style attribute or tag.
• declarationsstring[]
  An associative array of CSS definitions, e.g., array( "$property" => "$value", "$property" => "$value" ).
• classnamesstring
  Classnames separated by a space.

File: wp-includes/style-engine.php. View all references

function wp_style_engine_get_styles( $block_styles, $options = array() ) {
	$options = wp_parse_args(
		$options,
		array(
			'selector'                   => null,
			'context'                    => null,
			'convert_vars_to_classnames' => false,
		)
	);

	$parsed_styles = WP_Style_Engine::parse_block_styles( $block_styles, $options );

	// Output.
	$styles_output = array();

	if ( ! empty( $parsed_styles['declarations'] ) ) {
		$styles_output['css']          = WP_Style_Engine::compile_css( $parsed_styles['declarations'], $options['selector'] );
		$styles_output['declarations'] = $parsed_styles['declarations'];
		if ( ! empty( $options['context'] ) ) {
			WP_Style_Engine::store_css_rule( $options['context'], $options['selector'], $parsed_styles['declarations'] );
		}
	}

	if ( ! empty( $parsed_styles['classnames'] ) ) {
		$styles_output['classnames'] = implode( ' ', array_unique( $parsed_styles['classnames'] ) );
	}

	return array_filter( $styles_output );
}