WP_Theme_JSON::get_styles_for_block( array $block_metadata ): string

Compatibility

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

Parameters

$block_metadataarray

Metadata about the block to get styles for.

Return value

string

Styles for the block.

Performance profile

How much work a call to WP_Theme_JSON::get_styles_for_block() 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

Trivial

Touches nothing outside its own arguments.

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

11

Executed per call on PHP 8.5. The body compiles to 674.

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 one call costs · 1 distinct outcome

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

Uses · 16

• _wp_array_get()Accesses an array in depth based on a path of keys.
• array_last()Polyfill for `array_last()` function added in PHP 8.5.
• static::get_feature_declarations_for_node()
• static::get_viewport_media_queries()
• static::update_paragraph_text_indent_selector()
• static::update_button_width_declarations()
• static::get_block_style_variation_feature_selector()
• static::compute_style_properties()
• static::get_block_name_from_metadata_path()
• WP_Theme_JSON::process_pseudo_selectors()Processes pseudo-selectors for any node (block or variation).
• WP_Theme_JSON::process_blocks_custom_css()Processes the CSS, to apply nesting.
• static::to_ruleset()

Source code

View on Trac ↗View on GitHub ↗

3815	public function get_styles_for_block( $block_metadata ) {3816		$node                     = _wp_array_get( $this->theme_json, $block_metadata['path'], array() );3817		$use_root_padding         = isset( $this->theme_json['settings']['useRootPaddingAwareAlignments'] ) && true === $this->theme_json['settings']['useRootPaddingAwareAlignments'];3818		$selector                 = $block_metadata['selector'];3819		$settings                 = $this->theme_json['settings'] ?? array();3820		$feature_declarations     = static::get_feature_declarations_for_node( $block_metadata, $node );3821		$is_root_selector         = static::ROOT_BLOCK_SELECTOR === $selector;3822		$media_query              = $block_metadata['media_query'] ?? null;3823		$responsive_media_queries = static::get_viewport_media_queries( $settings['viewport'] ?? null );3824 3825		// Update text indent selector for paragraph blocks based on the textIndent setting.3826		$block_name           = $block_metadata['name'] ?? null;3827		$feature_declarations = static::update_paragraph_text_indent_selector( $feature_declarations, $settings, $block_name );3828		$block_elements       = $block_metadata['elements'] ?? array();3829 3830		// Update button width declarations for percentage values to use calc() with block gap.3831		$feature_declarations = static::update_button_width_declarations( $feature_declarations, $settings );3832 3833		// If there are style variations, generate the declarations for them, including any feature selectors the block may have.3834		$style_variation_declarations          = array();3835		$style_variation_custom_css            = array();3836		$style_variation_responsive_css        = array();3837		$style_variation_responsive_pseudo_css = array();3838		$style_variation_layout_metadata       = array();3839		if ( ! $media_query && ! empty( $block_metadata['variations'] ) ) {3840			foreach ( $block_metadata['variations'] as $style_variation ) {3841				$style_variation_node = _wp_array_get( $this->theme_json, $style_variation['path'], array() );3842 3843				// Generate any feature/subfeature style declarations for the current style variation.3844				$variation_declarations = static::get_feature_declarations_for_node( $block_metadata, $style_variation_node );3845 3846				// Update text indent selector for paragraph blocks based on the textIndent setting.3847				$variation_declarations = static::update_paragraph_text_indent_selector( $variation_declarations, $settings, $block_name );3848 3849				// Update button width declarations for percentage values to use calc() with block gap.3850				$variation_declarations = static::update_button_width_declarations( $variation_declarations, $settings );3851 3852				// Combine selectors with style variation's selector and add to overall style variation declarations.3853				foreach ( $variation_declarations as $current_selector => $new_declarations ) {3854					$combined_selectors = static::get_block_style_variation_feature_selector( $style_variation, $current_selector );3855 3856					// Add the new declarations to the overall results under the modified selector.3857					$style_variation_declarations[ $combined_selectors ] = $new_declarations;3858				}3859 3860				// Compute declarations for remaining styles not covered by feature level selectors.3861				$style_variation_declarations[ $style_variation['selector'] ] = static::compute_style_properties( $style_variation_node, $settings, null, $this->theme_json );3862 3863				// Process pseudo-selectors for this variation (e.g., :hover, :focus)3864				if ( isset( $block_metadata['name'] ) ) {3865					$block_name = $block_metadata['name'];3866				} elseif ( in_array( 'blocks', $block_metadata['path'], true ) && count( $block_metadata['path'] ) >= 3 ) {3867					$block_name = static::get_block_name_from_metadata_path( $block_metadata );3868				} else {3869					$block_name = null;3870				}3871				$variation_pseudo_declarations = $this->process_pseudo_selectors( $style_variation_node, $style_variation['selector'], $settings, $block_name, $block_metadata, $style_variation );3872				$style_variation_declarations  = array_merge( $style_variation_declarations, $variation_pseudo_declarations );3873 3874				// Store custom CSS for the style variation.3875				if ( isset( $style_variation_node['css'] ) ) {3876					$style_variation_custom_css[ $style_variation['selector'] ] = $this->process_blocks_custom_css( $style_variation_node['css'], $style_variation['selector'] );3877				}3878 3879				// Store variation metadata and node for layout styles generation.3880				// Only store if the variation has blockGap defined.3881				if ( isset( $style_variation_node['spacing']['blockGap'] ) ) {3882					// Append block selector to the variation selector for proper targeting.3883					$variation_metadata_with_selector                                = $style_variation;3884					$variation_metadata_with_selector['selector']                    = $style_variation['selector'] . $block_metadata['css'];3885					$style_variation_layout_metadata[ $style_variation['selector'] ] = array(3886						'metadata' => $variation_metadata_with_selector,3887						'node'     => $style_variation_node,3888					);3889				}3890 3891				// Store responsive breakpoint CSS for the style variation.3892				// This includes both base properties and feature-level selectors.3893				$variation_responsive_css        = '';3894				$variation_responsive_pseudo_css = '';

Changelog

Introduced in 6.1.0. 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/class-wp-theme-json.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

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