WP_Duotone::render_duotone_support( string $block_content, array $block, WP_Block $wp_block ): string

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

$block_contentstring

Rendered block content.

$blockarray

Block object.

$wp_blockWP_Block

The block instance.

Return value

string

Filtered block content.

Performance profile

How much work a call to WP_Duotone::render_duotone_support() 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

6–83

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 139.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• hookthird-party callbacksapply_filters()one call below WP_Duotone::render_duotone_support()

What one call costs · 21 distinct outcomes

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

Uses · 13

• wp_unique_id()Gets unique ID.
• sanitize_key()Sanitizes a string key.
• WP_Duotone::get_selector()Get the CSS selector for a block type.
• WP_Duotone::get_all_global_style_block_names()Scrape all block names from global styles and store in self::$global_styles_block_names.
• WP_Duotone::is_preset()Checks if we have a valid duotone preset.
• WP_Duotone::get_slug_from_attribute()Takes the inline CSS duotone variable from a block and return the slug.
• WP_Duotone::get_filter_id()Get the ID of the duotone filter.
• WP_Duotone::get_css_var()Get the CSS variable for a duotone preset.
• WP_Duotone::enqueue_global_styles_preset()Enqueue preset assets for the page.
• WP_Duotone::enqueue_block_css()Enqueue a block CSS declaration for the page.
• WP_Duotone::get_filter_url()Get the URL for a duotone filter.
• WP_Duotone::enqueue_custom_filter()Enqueue custom filter assets for the page.

Used by · 1

• wp_render_duotone_support()Renders out the duotone stylesheet and SVG.

Source code

View on Trac ↗View on GitHub ↗

1088	public static function render_duotone_support( $block_content, $block, $wp_block ) {1089		if ( ! $block['blockName'] ) {1090			return $block_content;1091		}1092		$duotone_selector = self::get_selector( $wp_block->block_type );1093 1094		if ( ! $duotone_selector ) {1095			return $block_content;1096		}1097 1098		$global_styles_block_names = self::get_all_global_style_block_names();1099 1100		// The block should have a duotone attribute or have duotone defined in its theme.json to be processed.1101		$has_duotone_attribute     = isset( $block['attrs']['style']['color']['duotone'] );1102		$has_global_styles_duotone = array_key_exists( $block['blockName'], $global_styles_block_names );1103 1104		if ( ! $has_duotone_attribute && ! $has_global_styles_duotone ) {1105			return $block_content;1106		}1107 1108		// Generate the pieces needed for rendering a duotone to the page.1109		if ( $has_duotone_attribute ) {1110 1111			/*1112			 * Possible values for duotone attribute:1113			 * 1. Array of colors - e.g. array('#000000', '#ffffff').1114			 * 2. Variable for an existing Duotone preset - e.g. 'var:preset|duotone|blue-orange' or 'var(--wp--preset--duotone--blue-orange)''1115			 * 3. A CSS string - e.g. 'unset' to remove globally applied duotone.1116			 */1117 1118			$duotone_attr = $block['attrs']['style']['color']['duotone'];1119			$is_preset    = is_string( $duotone_attr ) && self::is_preset( $duotone_attr );1120			$is_css       = is_string( $duotone_attr ) && ! $is_preset;1121			$is_custom    = is_array( $duotone_attr );1122 1123			if ( $is_preset ) {1124 1125				$slug         = self::get_slug_from_attribute( $duotone_attr ); // e.g. 'blue-orange'.1126				$filter_id    = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-blue-orange'.1127				$filter_value = self::get_css_var( $slug ); // e.g. 'var(--wp--preset--duotone--blue-orange)'.1128 1129				// CSS custom property, SVG filter, and block CSS.1130				self::enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value );1131 1132			} elseif ( $is_css ) {1133				$slug         = wp_unique_id( sanitize_key( $duotone_attr . '-' ) ); // e.g. 'unset-1'.1134				$filter_id    = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-unset-1'.1135				$filter_value = $duotone_attr; // e.g. 'unset'.1136 1137				// Just block CSS.1138				self::enqueue_block_css( $filter_id, $duotone_selector, $filter_value );1139			} elseif ( $is_custom ) {1140				$slug         = wp_unique_id( sanitize_key( implode( '-', $duotone_attr ) . '-' ) ); // e.g. '000000-ffffff-2'.1141				$filter_id    = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-000000-ffffff-2'.1142				$filter_value = self::get_filter_url( $filter_id ); // e.g. 'url(#wp-duotone-filter-000000-ffffff-2)'.1143				$filter_data  = array(1144					'slug'   => $slug,1145					'colors' => $duotone_attr,1146				);1147 1148				// SVG filter and block CSS.1149				self::enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $filter_data );1150			}1151		} elseif ( $has_global_styles_duotone ) {1152			$slug         = $global_styles_block_names[ $block['blockName'] ]; // e.g. 'blue-orange'.1153			$filter_id    = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-blue-orange'.1154			$filter_value = self::get_css_var( $slug ); // e.g. 'var(--wp--preset--duotone--blue-orange)'.1155 1156			// CSS custom property, SVG filter, and block CSS.1157			self::enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value );1158		}1159 1160		// Like the layout hook, this assumes the hook only applies to blocks with a single wrapper.1161		$tags = new WP_HTML_Tag_Processor( $block_content );1162		if ( $tags->next_tag() ) {1163			$tags->add_class( $filter_id );1164		}1165		return $tags->get_updated_html();1166	}

Changelog

Introduced in 6.3.0. 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-duotone.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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