wp_render_elements_support_styles( array $parsed_block ): array

Description

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$parsed_blockarray

The parsed block.

Return value

array

The same parsed block with elements classname added if appropriate.

Performance profile

How much work a call to wp_render_elements_support_styles() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Light

Touches nothing outside its own arguments.

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

13–119

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 175.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksdo_action()one call below wp_render_elements_support_styles()

Further down the call graph this can also reach query, option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 8 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_render_elements_support_styles() can have, taken from its control-flow graph on PHP 8.5.

Uses · 9

• _deprecated_argument()Marks a function argument as deprecated and inform when it has been used.
• __()Retrieves the translation of $text.
• wp_should_skip_block_supports_serialization()Checks whether serialization of the current block's supported properties should occur.
• wp_should_add_elements_class_name()Determines whether an elements class name should be added to the block.
• wp_get_elements_class_name()Gets the elements class names.
• _wp_array_set()Sets an array in depth based on a path of keys.
• wp_style_engine_get_styles()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.
• WP_Block_Type_Registry::get_instance()::get_registered()
• WP_Block_Type_Registry::get_instance()Utility method to retrieve the main instance of the class.

Source code

View on Trac ↗View on GitHub ↗

135function wp_render_elements_support_styles( $parsed_block ) {136	/*137	 * The generation of element styles and classname were moved to the138	 * `render_block_data` filter in 6.6.0 to avoid filtered attributes139	 * breaking the application of the elements CSS class.140	 *141	 * @link https://github.com/WordPress/gutenberg/pull/59535142	 *143	 * The change in filter means, the argument types for this function144	 * have changed and require deprecating.145	 */146	if ( is_string( $parsed_block ) ) {147		_deprecated_argument(148			__FUNCTION__,149			'6.6.0',150			__( 'Use as a `pre_render_block` filter is deprecated. Use with `render_block_data` instead.' )151		);152	}153 154	$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $parsed_block['blockName'] );155	if ( ! $block_type ) {156		return $parsed_block;157	}158 159	$element_block_styles = $parsed_block['attrs']['style']['elements'] ?? null;160	if ( ! $element_block_styles ) {161		return $parsed_block;162	}163 164	$skip_link_color_serialization         = wp_should_skip_block_supports_serialization( $block_type, 'color', 'link' );165	$skip_heading_color_serialization      = wp_should_skip_block_supports_serialization( $block_type, 'color', 'heading' );166	$skip_button_color_serialization       = wp_should_skip_block_supports_serialization( $block_type, 'color', 'button' );167	$skips_all_element_color_serialization = $skip_link_color_serialization &&168		$skip_heading_color_serialization &&169		$skip_button_color_serialization;170 171	if ( $skips_all_element_color_serialization ) {172		return $parsed_block;173	}174 175	$options = array(176		'button'  => array( 'skip' => $skip_button_color_serialization ),177		'link'    => array( 'skip' => $skip_link_color_serialization ),178		'heading' => array( 'skip' => $skip_heading_color_serialization ),179	);180 181	if ( ! wp_should_add_elements_class_name( $parsed_block, $options ) ) {182		return $parsed_block;183	}184 185	$class_name         = wp_get_elements_class_name();186	$updated_class_name = isset( $parsed_block['attrs']['className'] ) ? $parsed_block['attrs']['className'] . " $class_name" : $class_name;187 188	_wp_array_set( $parsed_block, array( 'attrs', 'className' ), $updated_class_name );189 190	// Generate element styles based on selector and store in style engine for enqueuing.191	$element_types = array(192		'button'  => array(193			'selector' => ".$class_name .wp-element-button, .$class_name .wp-block-button__link",194			'skip'     => $skip_button_color_serialization,195		),196		'link'    => array(197			'selector'       => ".$class_name a:where(:not(.wp-element-button))",198			'hover_selector' => ".$class_name a:where(:not(.wp-element-button)):hover",199			'skip'           => $skip_link_color_serialization,200		),201		'heading' => array(202			'selector' => ".$class_name h1, .$class_name h2, .$class_name h3, .$class_name h4, .$class_name h5, .$class_name h6",203			'skip'     => $skip_heading_color_serialization,204			'elements' => array( 'h1', 'h2', 'h3', 'h4', 'h5', 'h6' ),205		),206	);207 208	foreach ( $element_types as $element_type => $element_config ) {209		if ( $element_config['skip'] ) {210			continue;211		}212 213		$element_style_object = $element_block_styles[ $element_type ] ?? null;214

Changelog

Introduced in 6.0.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/block-supports/elements.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

Something wrong on this page? Report it and it gets fixed in the next regeneration.