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class-wp-style-engine-css-declarations.php 0000644 00000012115 14721125077 0014651 0 ustar 00 <?php /** * Style Engine: WP_Style_Engine_CSS_Declarations class * * @package WordPress * @subpackage StyleEngine * @since 6.1.0 */ /** * Core class used for style engine CSS declarations. * * Holds, sanitizes, processes, and prints CSS declarations for the style engine. * * @since 6.1.0 */ #[AllowDynamicProperties] class WP_Style_Engine_CSS_Declarations { /** * An array of CSS declarations (property => value pairs). * * @since 6.1.0 * * @var string[] */ protected $declarations = array(); /** * Constructor for this object. * * If a `$declarations` array is passed, it will be used to populate * the initial `$declarations` prop of the object by calling add_declarations(). * * @since 6.1.0 * * @param string[] $declarations Optional. An associative array of CSS definitions, * e.g. `array( "$property" => "$value", "$property" => "$value" )`. * Default empty array. */ public function __construct( $declarations = array() ) { $this->add_declarations( $declarations ); } /** * Adds a single declaration. * * @since 6.1.0 * * @param string $property The CSS property. * @param string $value The CSS value. * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods. */ public function add_declaration( $property, $value ) { // Sanitizes the property. $property = $this->sanitize_property( $property ); // Bails early if the property is empty. if ( empty( $property ) ) { return $this; } // Trims the value. If empty, bail early. $value = trim( $value ); if ( '' === $value ) { return $this; } // Adds the declaration property/value pair. $this->declarations[ $property ] = $value; return $this; } /** * Removes a single declaration. * * @since 6.1.0 * * @param string $property The CSS property. * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods. */ public function remove_declaration( $property ) { unset( $this->declarations[ $property ] ); return $this; } /** * Adds multiple declarations. * * @since 6.1.0 * * @param string[] $declarations An array of declarations. * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods. */ public function add_declarations( $declarations ) { foreach ( $declarations as $property => $value ) { $this->add_declaration( $property, $value ); } return $this; } /** * Removes multiple declarations. * * @since 6.1.0 * * @param string[] $properties Optional. An array of properties. Default empty array. * @return WP_Style_Engine_CSS_Declarations Returns the object to allow chaining methods. */ public function remove_declarations( $properties = array() ) { foreach ( $properties as $property ) { $this->remove_declaration( $property ); } return $this; } /** * Gets the declarations array. * * @since 6.1.0 * * @return string[] The declarations array. */ public function get_declarations() { return $this->declarations; } /** * Filters a CSS property + value pair. * * @since 6.1.0 * * @param string $property The CSS property. * @param string $value The value to be filtered. * @param string $spacer Optional. The spacer between the colon and the value. * Default empty string. * @return string The filtered declaration or an empty string. */ protected static function filter_declaration( $property, $value, $spacer = '' ) { $filtered_value = wp_strip_all_tags( $value, true ); if ( '' !== $filtered_value ) { return safecss_filter_attr( "{$property}:{$spacer}{$filtered_value}" ); } return ''; } /** * Filters and compiles the CSS declarations. * * @since 6.1.0 * * @param bool $should_prettify Optional. Whether to add spacing, new lines and indents. * Default false. * @param int $indent_count Optional. The number of tab indents to apply to the rule. * Applies if `prettify` is `true`. Default 0. * @return string The CSS declarations. */ public function get_declarations_string( $should_prettify = false, $indent_count = 0 ) { $declarations_array = $this->get_declarations(); $declarations_output = ''; $indent = $should_prettify ? str_repeat( "\t", $indent_count ) : ''; $suffix = $should_prettify ? ' ' : ''; $suffix = $should_prettify && $indent_count > 0 ? "\n" : $suffix; $spacer = $should_prettify ? ' ' : ''; foreach ( $declarations_array as $property => $value ) { $filtered_declaration = static::filter_declaration( $property, $value, $spacer ); if ( $filtered_declaration ) { $declarations_output .= "{$indent}{$filtered_declaration};$suffix"; } } return rtrim( $declarations_output ); } /** * Sanitizes property names. * * @since 6.1.0 * * @param string $property The CSS property. * @return string The sanitized property name. */ protected function sanitize_property( $property ) { return sanitize_key( $property ); } } class-wp-style-engine-processor.php 0000644 00000012416 14721125077 0013436 0 ustar 00 <?php /** * Style Engine: WP_Style_Engine_Processor class * * @package WordPress * @subpackage StyleEngine * @since 6.1.0 */ /** * Core class used to compile styles from stores or collection of CSS rules. * * @since 6.1.0 */ #[AllowDynamicProperties] class WP_Style_Engine_Processor { /** * A collection of Style Engine Store objects. * * @since 6.1.0 * @var WP_Style_Engine_CSS_Rules_Store[] */ protected $stores = array(); /** * The set of CSS rules that this processor will work on. * * @since 6.1.0 * @var WP_Style_Engine_CSS_Rule[] */ protected $css_rules = array(); /** * Adds a store to the processor. * * @since 6.1.0 * * @param WP_Style_Engine_CSS_Rules_Store $store The store to add. * @return WP_Style_Engine_Processor Returns the object to allow chaining methods. */ public function add_store( $store ) { if ( ! $store instanceof WP_Style_Engine_CSS_Rules_Store ) { _doing_it_wrong( __METHOD__, __( '$store must be an instance of WP_Style_Engine_CSS_Rules_Store' ), '6.1.0' ); return $this; } $this->stores[ $store->get_name() ] = $store; return $this; } /** * Adds rules to be processed. * * @since 6.1.0 * @since 6.6.0 Added support for rules_group. * * @param WP_Style_Engine_CSS_Rule|WP_Style_Engine_CSS_Rule[] $css_rules A single, or an array of, * WP_Style_Engine_CSS_Rule objects * from a store or otherwise. * @return WP_Style_Engine_Processor Returns the object to allow chaining methods. */ public function add_rules( $css_rules ) { if ( ! is_array( $css_rules ) ) { $css_rules = array( $css_rules ); } foreach ( $css_rules as $rule ) { $selector = $rule->get_selector(); $rules_group = $rule->get_rules_group(); /** * If there is a rules_group and it already exists in the css_rules array, * add the rule to it. * Otherwise, create a new entry for the rules_group. */ if ( ! empty( $rules_group ) ) { if ( isset( $this->css_rules[ "$rules_group $selector" ] ) ) { $this->css_rules[ "$rules_group $selector" ]->add_declarations( $rule->get_declarations() ); continue; } $this->css_rules[ "$rules_group $selector" ] = $rule; continue; } // If the selector already exists, add the declarations to it. if ( isset( $this->css_rules[ $selector ] ) ) { $this->css_rules[ $selector ]->add_declarations( $rule->get_declarations() ); continue; } $this->css_rules[ $rule->get_selector() ] = $rule; } return $this; } /** * Gets the CSS rules as a string. * * @since 6.1.0 * @since 6.4.0 The Optimization is no longer the default. * * @param array $options { * Optional. An array of options. Default empty array. * * @type bool $optimize Whether to optimize the CSS output, e.g. combine rules. * Default false. * @type bool $prettify Whether to add new lines and indents to output. * Defaults to whether the `SCRIPT_DEBUG` constant is defined. * } * @return string The computed CSS. */ public function get_css( $options = array() ) { $defaults = array( 'optimize' => false, 'prettify' => defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG, ); $options = wp_parse_args( $options, $defaults ); // If we have stores, get the rules from them. foreach ( $this->stores as $store ) { $this->add_rules( $store->get_all_rules() ); } // Combine CSS selectors that have identical declarations. if ( true === $options['optimize'] ) { $this->combine_rules_selectors(); } // Build the CSS. $css = ''; foreach ( $this->css_rules as $rule ) { // See class WP_Style_Engine_CSS_Rule for the get_css method. $css .= $rule->get_css( $options['prettify'] ); $css .= $options['prettify'] ? "\n" : ''; } return $css; } /** * Combines selectors from the rules store when they have the same styles. * * @since 6.1.0 */ private function combine_rules_selectors() { // Build an array of selectors along with the JSON-ified styles to make comparisons easier. $selectors_json = array(); foreach ( $this->css_rules as $rule ) { $declarations = $rule->get_declarations()->get_declarations(); ksort( $declarations ); $selectors_json[ $rule->get_selector() ] = wp_json_encode( $declarations ); } // Combine selectors that have the same styles. foreach ( $selectors_json as $selector => $json ) { // Get selectors that use the same styles. $duplicates = array_keys( $selectors_json, $json, true ); // Skip if there are no duplicates. if ( 1 >= count( $duplicates ) ) { continue; } $declarations = $this->css_rules[ $selector ]->get_declarations(); foreach ( $duplicates as $key ) { // Unset the duplicates from the $selectors_json array to avoid looping through them as well. unset( $selectors_json[ $key ] ); // Remove the rules from the rules collection. unset( $this->css_rules[ $key ] ); } // Create a new rule with the combined selectors. $duplicate_selectors = implode( ',', $duplicates ); $this->css_rules[ $duplicate_selectors ] = new WP_Style_Engine_CSS_Rule( $duplicate_selectors, $declarations ); } } } class-wp-style-engine-css-rule.php 0000644 00000013656 14721125077 0013163 0 ustar 00 <?php /** * Style Engine: WP_Style_Engine_CSS_Rule class * * @package WordPress * @subpackage StyleEngine * @since 6.1.0 */ /** * Core class used for style engine CSS rules. * * Holds, sanitizes, processes, and prints CSS declarations for the style engine. * * @since 6.1.0 */ #[AllowDynamicProperties] class WP_Style_Engine_CSS_Rule { /** * The selector. * * @since 6.1.0 * @var string */ protected $selector; /** * The selector declarations. * * Contains a WP_Style_Engine_CSS_Declarations object. * * @since 6.1.0 * @var WP_Style_Engine_CSS_Declarations */ protected $declarations; /** * A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. * * @since 6.6.0 * @var string */ protected $rules_group; /** * Constructor. * * @since 6.1.0 * @since 6.6.0 Added the `$rules_group` parameter. * * @param string $selector Optional. The CSS selector. Default empty string. * @param string[]|WP_Style_Engine_CSS_Declarations $declarations Optional. An associative array of CSS definitions, * e.g. `array( "$property" => "$value", "$property" => "$value" )`, * or a WP_Style_Engine_CSS_Declarations object. * Default empty array. * @param string $rules_group A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. */ public function __construct( $selector = '', $declarations = array(), $rules_group = '' ) { $this->set_selector( $selector ); $this->add_declarations( $declarations ); $this->set_rules_group( $rules_group ); } /** * Sets the selector. * * @since 6.1.0 * * @param string $selector The CSS selector. * @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods. */ public function set_selector( $selector ) { $this->selector = $selector; return $this; } /** * Sets the declarations. * * @since 6.1.0 * * @param string[]|WP_Style_Engine_CSS_Declarations $declarations An array of declarations (property => value pairs), * or a WP_Style_Engine_CSS_Declarations object. * @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods. */ public function add_declarations( $declarations ) { $is_declarations_object = ! is_array( $declarations ); $declarations_array = $is_declarations_object ? $declarations->get_declarations() : $declarations; if ( null === $this->declarations ) { if ( $is_declarations_object ) { $this->declarations = $declarations; return $this; } $this->declarations = new WP_Style_Engine_CSS_Declarations( $declarations_array ); } $this->declarations->add_declarations( $declarations_array ); return $this; } /** * Sets the rules group. * * @since 6.6.0 * * @param string $rules_group A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. * @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods. */ public function set_rules_group( $rules_group ) { $this->rules_group = $rules_group; return $this; } /** * Gets the rules group. * * @since 6.6.0 * * @return string */ public function get_rules_group() { return $this->rules_group; } /** * Gets the declarations object. * * @since 6.1.0 * * @return WP_Style_Engine_CSS_Declarations The declarations object. */ public function get_declarations() { return $this->declarations; } /** * Gets the full selector. * * @since 6.1.0 * * @return string */ public function get_selector() { return $this->selector; } /** * Gets the CSS. * * @since 6.1.0 * @since 6.6.0 Added support for nested CSS with rules groups. * * @param bool $should_prettify Optional. Whether to add spacing, new lines and indents. * Default false. * @param int $indent_count Optional. The number of tab indents to apply to the rule. * Applies if `prettify` is `true`. Default 0. * @return string */ public function get_css( $should_prettify = false, $indent_count = 0 ) { $rule_indent = $should_prettify ? str_repeat( "\t", $indent_count ) : ''; $nested_rule_indent = $should_prettify ? str_repeat( "\t", $indent_count + 1 ) : ''; $declarations_indent = $should_prettify ? $indent_count + 1 : 0; $nested_declarations_indent = $should_prettify ? $indent_count + 2 : 0; $suffix = $should_prettify ? "\n" : ''; $spacer = $should_prettify ? ' ' : ''; // Trims any multiple selectors strings. $selector = $should_prettify ? implode( ',', array_map( 'trim', explode( ',', $this->get_selector() ) ) ) : $this->get_selector(); $selector = $should_prettify ? str_replace( array( ',' ), ",\n", $selector ) : $selector; $rules_group = $this->get_rules_group(); $has_rules_group = ! empty( $rules_group ); $css_declarations = $this->declarations->get_declarations_string( $should_prettify, $has_rules_group ? $nested_declarations_indent : $declarations_indent ); if ( empty( $css_declarations ) ) { return ''; } if ( $has_rules_group ) { $selector = "{$rule_indent}{$rules_group}{$spacer}{{$suffix}{$nested_rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$nested_rule_indent}}{$suffix}{$rule_indent}}"; return $selector; } return "{$rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$rule_indent}}"; } } class-wp-style-engine-css-rules-store.php 0000644 00000007216 14721125077 0014473 0 ustar 00 <?php /** * Style Engine: WP_Style_Engine_CSS_Rules_Store class * * @package WordPress * @subpackage StyleEngine * @since 6.1.0 */ /** * Core class used as a store for WP_Style_Engine_CSS_Rule objects. * * Holds, sanitizes, processes, and prints CSS declarations for the style engine. * * @since 6.1.0 */ #[AllowDynamicProperties] class WP_Style_Engine_CSS_Rules_Store { /** * An array of named WP_Style_Engine_CSS_Rules_Store objects. * * @static * * @since 6.1.0 * @var WP_Style_Engine_CSS_Rules_Store[] */ protected static $stores = array(); /** * The store name. * * @since 6.1.0 * @var string */ protected $name = ''; /** * An array of CSS Rules objects assigned to the store. * * @since 6.1.0 * @var WP_Style_Engine_CSS_Rule[] */ protected $rules = array(); /** * Gets an instance of the store. * * @since 6.1.0 * * @param string $store_name The name of the store. * @return WP_Style_Engine_CSS_Rules_Store|void */ public static function get_store( $store_name = 'default' ) { if ( ! is_string( $store_name ) || empty( $store_name ) ) { return; } if ( ! isset( static::$stores[ $store_name ] ) ) { static::$stores[ $store_name ] = new static(); // Set the store name. static::$stores[ $store_name ]->set_name( $store_name ); } return static::$stores[ $store_name ]; } /** * Gets an array of all available stores. * * @since 6.1.0 * * @return WP_Style_Engine_CSS_Rules_Store[] */ public static function get_stores() { return static::$stores; } /** * Clears all stores from static::$stores. * * @since 6.1.0 */ public static function remove_all_stores() { static::$stores = array(); } /** * Sets the store name. * * @since 6.1.0 * * @param string $name The store name. */ public function set_name( $name ) { $this->name = $name; } /** * Gets the store name. * * @since 6.1.0 * * @return string */ public function get_name() { return $this->name; } /** * Gets an array of all rules. * * @since 6.1.0 * * @return WP_Style_Engine_CSS_Rule[] */ public function get_all_rules() { return $this->rules; } /** * Gets a WP_Style_Engine_CSS_Rule object by its selector. * If the rule does not exist, it will be created. * * @since 6.1.0 * @since 6.6.0 Added the $rules_group parameter. * * @param string $selector The CSS selector. * @param string $rules_group A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. * @return WP_Style_Engine_CSS_Rule|void Returns a WP_Style_Engine_CSS_Rule object, * or void if the selector is empty. */ public function add_rule( $selector, $rules_group = '' ) { $selector = $selector ? trim( $selector ) : ''; $rules_group = $rules_group ? trim( $rules_group ) : ''; // Bail early if there is no selector. if ( empty( $selector ) ) { return; } if ( ! empty( $rules_group ) ) { if ( empty( $this->rules[ "$rules_group $selector" ] ) ) { $this->rules[ "$rules_group $selector" ] = new WP_Style_Engine_CSS_Rule( $selector, array(), $rules_group ); } return $this->rules[ "$rules_group $selector" ]; } // Create the rule if it doesn't exist. if ( empty( $this->rules[ $selector ] ) ) { $this->rules[ $selector ] = new WP_Style_Engine_CSS_Rule( $selector ); } return $this->rules[ $selector ]; } /** * Removes a selector from the store. * * @since 6.1.0 * * @param string $selector The CSS selector. */ public function remove_rule( $selector ) { unset( $this->rules[ $selector ] ); } } class-wp-style-engine.php 0000644 00000065673 14721125077 0011436 0 ustar 00 <?php /** * Style Engine: WP_Style_Engine class * * @package WordPress * @subpackage StyleEngine * @since 6.1.0 */ /** * The main class integrating all other WP_Style_Engine_* classes. * * The Style Engine aims to provide a consistent API for rendering styling for blocks * across both client-side and server-side applications. * * This class is final and should not be extended. * * This class is for internal Core usage and is not supposed to be used by extenders * (plugins and/or themes). This is a low-level API that may need to do breaking changes. * Please, use wp_style_engine_get_styles() instead. * * @access private * @since 6.1.0 * @since 6.3.0 Added support for text-columns. * @since 6.4.0 Added support for background.backgroundImage. * @since 6.5.0 Added support for background.backgroundPosition, * background.backgroundRepeat and dimensions.aspectRatio. * @since 6.7.0 Added support for typography.writingMode. */ #[AllowDynamicProperties] final class WP_Style_Engine { /** * Style definitions that contain the instructions to parse/output valid Gutenberg styles from a block's attributes. * * For every style definition, the following properties are valid: * * - classnames => (array) an array of classnames to be returned for block styles. The key is a classname or pattern. * A value of `true` means the classname should be applied always. Otherwise, a valid CSS property (string) * to match the incoming value, e.g., "color" to match var:preset|color|somePresetSlug. * - css_vars => (array) an array of key value pairs used to generate CSS var values. * The key should be the CSS property name that matches the second element of the preset string value, * i.e., "color" in var:preset|color|somePresetSlug. The value is a CSS var pattern (e.g. `--wp--preset--color--$slug`), * whose `$slug` fragment will be replaced with the preset slug, which is the third element of the preset string value, * i.e., `somePresetSlug` in var:preset|color|somePresetSlug. * - property_keys => (array) array of keys whose values represent a valid CSS property, e.g., "margin" or "border". * - path => (array) a path that accesses the corresponding style value in the block style object. * - value_func => (string) the name of a function to generate a CSS definition array for a particular style object. The output of this function should be `array( "$property" => "$value", ... )`. * * @since 6.1.0 * @var array */ const BLOCK_STYLE_DEFINITIONS_METADATA = array( 'background' => array( 'backgroundImage' => array( 'property_keys' => array( 'default' => 'background-image', ), 'value_func' => array( self::class, 'get_url_or_value_css_declaration' ), 'path' => array( 'background', 'backgroundImage' ), ), 'backgroundPosition' => array( 'property_keys' => array( 'default' => 'background-position', ), 'path' => array( 'background', 'backgroundPosition' ), ), 'backgroundRepeat' => array( 'property_keys' => array( 'default' => 'background-repeat', ), 'path' => array( 'background', 'backgroundRepeat' ), ), 'backgroundSize' => array( 'property_keys' => array( 'default' => 'background-size', ), 'path' => array( 'background', 'backgroundSize' ), ), 'backgroundAttachment' => array( 'property_keys' => array( 'default' => 'background-attachment', ), 'path' => array( 'background', 'backgroundAttachment' ), ), ), 'color' => array( 'text' => array( 'property_keys' => array( 'default' => 'color', ), 'path' => array( 'color', 'text' ), 'css_vars' => array( 'color' => '--wp--preset--color--$slug', ), 'classnames' => array( 'has-text-color' => true, 'has-$slug-color' => 'color', ), ), 'background' => array( 'property_keys' => array( 'default' => 'background-color', ), 'path' => array( 'color', 'background' ), 'css_vars' => array( 'color' => '--wp--preset--color--$slug', ), 'classnames' => array( 'has-background' => true, 'has-$slug-background-color' => 'color', ), ), 'gradient' => array( 'property_keys' => array( 'default' => 'background', ), 'path' => array( 'color', 'gradient' ), 'css_vars' => array( 'gradient' => '--wp--preset--gradient--$slug', ), 'classnames' => array( 'has-background' => true, 'has-$slug-gradient-background' => 'gradient', ), ), ), 'border' => array( 'color' => array( 'property_keys' => array( 'default' => 'border-color', 'individual' => 'border-%s-color', ), 'path' => array( 'border', 'color' ), 'classnames' => array( 'has-border-color' => true, 'has-$slug-border-color' => 'color', ), ), 'radius' => array( 'property_keys' => array( 'default' => 'border-radius', 'individual' => 'border-%s-radius', ), 'path' => array( 'border', 'radius' ), ), 'style' => array( 'property_keys' => array( 'default' => 'border-style', 'individual' => 'border-%s-style', ), 'path' => array( 'border', 'style' ), ), 'width' => array( 'property_keys' => array( 'default' => 'border-width', 'individual' => 'border-%s-width', ), 'path' => array( 'border', 'width' ), ), 'top' => array( 'value_func' => array( self::class, 'get_individual_property_css_declarations' ), 'path' => array( 'border', 'top' ), 'css_vars' => array( 'color' => '--wp--preset--color--$slug', ), ), 'right' => array( 'value_func' => array( self::class, 'get_individual_property_css_declarations' ), 'path' => array( 'border', 'right' ), 'css_vars' => array( 'color' => '--wp--preset--color--$slug', ), ), 'bottom' => array( 'value_func' => array( self::class, 'get_individual_property_css_declarations' ), 'path' => array( 'border', 'bottom' ), 'css_vars' => array( 'color' => '--wp--preset--color--$slug', ), ), 'left' => array( 'value_func' => array( self::class, 'get_individual_property_css_declarations' ), 'path' => array( 'border', 'left' ), 'css_vars' => array( 'color' => '--wp--preset--color--$slug', ), ), ), 'shadow' => array( 'shadow' => array( 'property_keys' => array( 'default' => 'box-shadow', ), 'path' => array( 'shadow' ), 'css_vars' => array( 'shadow' => '--wp--preset--shadow--$slug', ), ), ), 'dimensions' => array( 'aspectRatio' => array( 'property_keys' => array( 'default' => 'aspect-ratio', ), 'path' => array( 'dimensions', 'aspectRatio' ), 'classnames' => array( 'has-aspect-ratio' => true, ), ), 'minHeight' => array( 'property_keys' => array( 'default' => 'min-height', ), 'path' => array( 'dimensions', 'minHeight' ), 'css_vars' => array( 'spacing' => '--wp--preset--spacing--$slug', ), ), ), 'spacing' => array( 'padding' => array( 'property_keys' => array( 'default' => 'padding', 'individual' => 'padding-%s', ), 'path' => array( 'spacing', 'padding' ), 'css_vars' => array( 'spacing' => '--wp--preset--spacing--$slug', ), ), 'margin' => array( 'property_keys' => array( 'default' => 'margin', 'individual' => 'margin-%s', ), 'path' => array( 'spacing', 'margin' ), 'css_vars' => array( 'spacing' => '--wp--preset--spacing--$slug', ), ), ), 'typography' => array( 'fontSize' => array( 'property_keys' => array( 'default' => 'font-size', ), 'path' => array( 'typography', 'fontSize' ), 'css_vars' => array( 'font-size' => '--wp--preset--font-size--$slug', ), 'classnames' => array( 'has-$slug-font-size' => 'font-size', ), ), 'fontFamily' => array( 'property_keys' => array( 'default' => 'font-family', ), 'css_vars' => array( 'font-family' => '--wp--preset--font-family--$slug', ), 'path' => array( 'typography', 'fontFamily' ), 'classnames' => array( 'has-$slug-font-family' => 'font-family', ), ), 'fontStyle' => array( 'property_keys' => array( 'default' => 'font-style', ), 'path' => array( 'typography', 'fontStyle' ), ), 'fontWeight' => array( 'property_keys' => array( 'default' => 'font-weight', ), 'path' => array( 'typography', 'fontWeight' ), ), 'lineHeight' => array( 'property_keys' => array( 'default' => 'line-height', ), 'path' => array( 'typography', 'lineHeight' ), ), 'textColumns' => array( 'property_keys' => array( 'default' => 'column-count', ), 'path' => array( 'typography', 'textColumns' ), ), 'textDecoration' => array( 'property_keys' => array( 'default' => 'text-decoration', ), 'path' => array( 'typography', 'textDecoration' ), ), 'textTransform' => array( 'property_keys' => array( 'default' => 'text-transform', ), 'path' => array( 'typography', 'textTransform' ), ), 'letterSpacing' => array( 'property_keys' => array( 'default' => 'letter-spacing', ), 'path' => array( 'typography', 'letterSpacing' ), ), 'writingMode' => array( 'property_keys' => array( 'default' => 'writing-mode', ), 'path' => array( 'typography', 'writingMode' ), ), ), ); /** * Util: Extracts the slug in kebab case from a preset string, * e.g. `heavenly-blue` from `var:preset|color|heavenlyBlue`. * * @since 6.1.0 * * @param string $style_value A single CSS preset value. * @param string $property_key The CSS property that is the second element of the preset string. * Used for matching. * @return string The slug, or empty string if not found. */ protected static function get_slug_from_preset_value( $style_value, $property_key ) { if ( is_string( $style_value ) && is_string( $property_key ) && str_contains( $style_value, "var:preset|{$property_key}|" ) ) { $index_to_splice = strrpos( $style_value, '|' ) + 1; return _wp_to_kebab_case( substr( $style_value, $index_to_splice ) ); } return ''; } /** * Util: Generates a CSS var string, e.g. `var(--wp--preset--color--background)` * from a preset string such as `var:preset|space|50`. * * @since 6.1.0 * * @param string $style_value A single CSS preset value. * @param string[] $css_vars An associate array of CSS var patterns * used to generate the var string. * @return string The CSS var, or an empty string if no match for slug found. */ protected static function get_css_var_value( $style_value, $css_vars ) { foreach ( $css_vars as $property_key => $css_var_pattern ) { $slug = static::get_slug_from_preset_value( $style_value, $property_key ); if ( static::is_valid_style_value( $slug ) ) { $var = strtr( $css_var_pattern, array( '$slug' => $slug ) ); return "var($var)"; } } return ''; } /** * Util: Checks whether an incoming block style value is valid. * * @since 6.1.0 * * @param string $style_value A single CSS preset value. * @return bool */ protected static function is_valid_style_value( $style_value ) { return '0' === $style_value || ! empty( $style_value ); } /** * Stores a CSS rule using the provided CSS selector and CSS declarations. * * @since 6.1.0 * @since 6.6.0 Added the `$rules_group` parameter. * * @param string $store_name A valid store key. * @param string $css_selector When a selector is passed, the function will return * a full CSS rule `$selector { ...rules }` * otherwise a concatenated string of properties and values. * @param string[] $css_declarations An associative array of CSS definitions, * e.g. `array( "$property" => "$value", "$property" => "$value" )`. * @param string $rules_group Optional. A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. */ public static function store_css_rule( $store_name, $css_selector, $css_declarations, $rules_group = '' ) { if ( empty( $store_name ) || empty( $css_selector ) || empty( $css_declarations ) ) { return; } static::get_store( $store_name )->add_rule( $css_selector, $rules_group )->add_declarations( $css_declarations ); } /** * Returns a store by store key. * * @since 6.1.0 * * @param string $store_name A store key. * @return WP_Style_Engine_CSS_Rules_Store|null */ public static function get_store( $store_name ) { return WP_Style_Engine_CSS_Rules_Store::get_store( $store_name ); } /** * Returns classnames and CSS based on the values in a styles object. * * Return values are parsed based on the instructions in BLOCK_STYLE_DEFINITIONS_METADATA. * * @since 6.1.0 * * @param array $block_styles The style object. * @param array $options { * Optional. An array of options. Default empty array. * * @type bool $convert_vars_to_classnames Whether to skip converting incoming CSS var patterns, * e.g. `var:preset|<PRESET_TYPE>|<PRESET_SLUG>`, * to `var( --wp--preset--* )` values. Default false. * @type string $selector Optional. When a selector is passed, * the value of `$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. * } * @return array { * @type string[] $classnames Array of class names. * @type string[] $declarations An associative array of CSS definitions, * e.g. `array( "$property" => "$value", "$property" => "$value" )`. * } */ public static function parse_block_styles( $block_styles, $options ) { $parsed_styles = array( 'classnames' => array(), 'declarations' => array(), ); if ( empty( $block_styles ) || ! is_array( $block_styles ) ) { return $parsed_styles; } // Collect CSS and classnames. foreach ( static::BLOCK_STYLE_DEFINITIONS_METADATA as $definition_group_key => $definition_group_style ) { if ( empty( $block_styles[ $definition_group_key ] ) ) { continue; } foreach ( $definition_group_style as $style_definition ) { $style_value = _wp_array_get( $block_styles, $style_definition['path'], null ); if ( ! static::is_valid_style_value( $style_value ) ) { continue; } $parsed_styles['classnames'] = array_merge( $parsed_styles['classnames'], static::get_classnames( $style_value, $style_definition ) ); $parsed_styles['declarations'] = array_merge( $parsed_styles['declarations'], static::get_css_declarations( $style_value, $style_definition, $options ) ); } } return $parsed_styles; } /** * Returns classnames, and generates classname(s) from a CSS preset property pattern, * e.g. `var:preset|<PRESET_TYPE>|<PRESET_SLUG>`. * * @since 6.1.0 * * @param string $style_value A single raw style value or CSS preset property * from the `$block_styles` array. * @param array $style_definition A single style definition from BLOCK_STYLE_DEFINITIONS_METADATA. * @return string[] An array of CSS classnames, or empty array if there are none. */ protected static function get_classnames( $style_value, $style_definition ) { if ( empty( $style_value ) ) { return array(); } $classnames = array(); if ( ! empty( $style_definition['classnames'] ) ) { foreach ( $style_definition['classnames'] as $classname => $property_key ) { if ( true === $property_key ) { $classnames[] = $classname; continue; } $slug = static::get_slug_from_preset_value( $style_value, $property_key ); if ( $slug ) { /* * Right now we expect a classname pattern to be stored in BLOCK_STYLE_DEFINITIONS_METADATA. * One day, if there are no stored schemata, we could allow custom patterns or * generate classnames based on other properties * such as a path or a value or a prefix passed in options. */ $classnames[] = strtr( $classname, array( '$slug' => $slug ) ); } } } return $classnames; } /** * Returns an array of CSS declarations based on valid block style values. * * @since 6.1.0 * * @param mixed $style_value A single raw style value from $block_styles array. * @param array $style_definition A single style definition from BLOCK_STYLE_DEFINITIONS_METADATA. * @param array $options { * Optional. An array of options. Default empty array. * * @type bool $convert_vars_to_classnames Whether to skip converting incoming CSS var patterns, * e.g. `var:preset|<PRESET_TYPE>|<PRESET_SLUG>`, * to `var( --wp--preset--* )` values. Default false. * } * @return string[] An associative array of CSS definitions, e.g. `array( "$property" => "$value", "$property" => "$value" )`. */ protected static function get_css_declarations( $style_value, $style_definition, $options = array() ) { if ( isset( $style_definition['value_func'] ) && is_callable( $style_definition['value_func'] ) ) { return call_user_func( $style_definition['value_func'], $style_value, $style_definition, $options ); } $css_declarations = array(); $style_property_keys = $style_definition['property_keys']; $should_skip_css_vars = isset( $options['convert_vars_to_classnames'] ) && true === $options['convert_vars_to_classnames']; /* * Build CSS var values from `var:preset|<PRESET_TYPE>|<PRESET_SLUG>` values, e.g, `var(--wp--css--rule-slug )`. * Check if the value is a CSS preset and there's a corresponding css_var pattern in the style definition. */ if ( is_string( $style_value ) && str_contains( $style_value, 'var:' ) ) { if ( ! $should_skip_css_vars && ! empty( $style_definition['css_vars'] ) ) { $css_var = static::get_css_var_value( $style_value, $style_definition['css_vars'] ); if ( static::is_valid_style_value( $css_var ) ) { $css_declarations[ $style_property_keys['default'] ] = $css_var; } } return $css_declarations; } /* * Default rule builder. * If the input contains an array, assume box model-like properties * for styles such as margins and padding. */ if ( is_array( $style_value ) ) { // Bail out early if the `'individual'` property is not defined. if ( ! isset( $style_property_keys['individual'] ) ) { return $css_declarations; } foreach ( $style_value as $key => $value ) { if ( is_string( $value ) && str_contains( $value, 'var:' ) && ! $should_skip_css_vars && ! empty( $style_definition['css_vars'] ) ) { $value = static::get_css_var_value( $value, $style_definition['css_vars'] ); } $individual_property = sprintf( $style_property_keys['individual'], _wp_to_kebab_case( $key ) ); if ( $individual_property && static::is_valid_style_value( $value ) ) { $css_declarations[ $individual_property ] = $value; } } return $css_declarations; } $css_declarations[ $style_property_keys['default'] ] = $style_value; return $css_declarations; } /** * Style value parser that returns a CSS definition array comprising style properties * that have keys representing individual style properties, otherwise known as longhand CSS properties. * * Example: * * "$style_property-$individual_feature: $value;" * * Which could represent the following: * * "border-{top|right|bottom|left}-{color|width|style}: {value};" * * or: * * "border-image-{outset|source|width|repeat|slice}: {value};" * * @since 6.1.0 * * @param array $style_value A single raw style value from `$block_styles` array. * @param array $individual_property_definition A single style definition from BLOCK_STYLE_DEFINITIONS_METADATA * representing an individual property of a CSS property, * e.g. 'top' in 'border-top'. * @param array $options { * Optional. An array of options. Default empty array. * * @type bool $convert_vars_to_classnames Whether to skip converting incoming CSS var patterns, * e.g. `var:preset|<PRESET_TYPE>|<PRESET_SLUG>`, * to `var( --wp--preset--* )` values. Default false. * } * @return string[] An associative array of CSS definitions, e.g. `array( "$property" => "$value", "$property" => "$value" )`. */ protected static function get_individual_property_css_declarations( $style_value, $individual_property_definition, $options = array() ) { if ( ! is_array( $style_value ) || empty( $style_value ) || empty( $individual_property_definition['path'] ) ) { return array(); } /* * The first item in $individual_property_definition['path'] array * tells us the style property, e.g. "border". We use this to get a corresponding * CSS style definition such as "color" or "width" from the same group. * * The second item in $individual_property_definition['path'] array * refers to the individual property marker, e.g. "top". */ $definition_group_key = $individual_property_definition['path'][0]; $individual_property_key = $individual_property_definition['path'][1]; $should_skip_css_vars = isset( $options['convert_vars_to_classnames'] ) && true === $options['convert_vars_to_classnames']; $css_declarations = array(); foreach ( $style_value as $css_property => $value ) { if ( empty( $value ) ) { continue; } // Build a path to the individual rules in definitions. $style_definition_path = array( $definition_group_key, $css_property ); $style_definition = _wp_array_get( static::BLOCK_STYLE_DEFINITIONS_METADATA, $style_definition_path, null ); if ( $style_definition && isset( $style_definition['property_keys']['individual'] ) ) { // Set a CSS var if there is a valid preset value. if ( is_string( $value ) && str_contains( $value, 'var:' ) && ! $should_skip_css_vars && ! empty( $individual_property_definition['css_vars'] ) ) { $value = static::get_css_var_value( $value, $individual_property_definition['css_vars'] ); } $individual_css_property = sprintf( $style_definition['property_keys']['individual'], $individual_property_key ); $css_declarations[ $individual_css_property ] = $value; } } return $css_declarations; } /** * Style value parser that constructs a CSS definition array comprising a single CSS property and value. * If the provided value is an array containing a `url` property, the function will return a CSS definition array * with a single property and value, with `url` escaped and injected into a CSS `url()` function, * e.g., array( 'background-image' => "url( '...' )" ). * * @since 6.4.0 * * @param array $style_value A single raw style value from $block_styles array. * @param array $style_definition A single style definition from BLOCK_STYLE_DEFINITIONS_METADATA. * @return string[] An associative array of CSS definitions, e.g., array( "$property" => "$value", "$property" => "$value" ). */ protected static function get_url_or_value_css_declaration( $style_value, $style_definition ) { if ( empty( $style_value ) ) { return array(); } $css_declarations = array(); if ( isset( $style_definition['property_keys']['default'] ) ) { $value = null; if ( ! empty( $style_value['url'] ) ) { $value = "url('" . $style_value['url'] . "')"; } elseif ( is_string( $style_value ) ) { $value = $style_value; } if ( null !== $value ) { $css_declarations[ $style_definition['property_keys']['default'] ] = $value; } } return $css_declarations; } /** * Returns compiled CSS from CSS declarations. * * @since 6.1.0 * * @param string[] $css_declarations An associative array of CSS definitions, * e.g. `array( "$property" => "$value", "$property" => "$value" )`. * @param string $css_selector When a selector is passed, the function will return * a full CSS rule `$selector { ...rules }`, * otherwise a concatenated string of properties and values. * @return string A compiled CSS string. */ public static function compile_css( $css_declarations, $css_selector ) { if ( empty( $css_declarations ) || ! is_array( $css_declarations ) ) { return ''; } // Return an entire rule if there is a selector. if ( $css_selector ) { $css_rule = new WP_Style_Engine_CSS_Rule( $css_selector, $css_declarations ); return $css_rule->get_css(); } $css_declarations = new WP_Style_Engine_CSS_Declarations( $css_declarations ); return $css_declarations->get_declarations_string(); } /** * Returns a compiled stylesheet from stored CSS rules. * * @since 6.1.0 * * @param WP_Style_Engine_CSS_Rule[] $css_rules An array of WP_Style_Engine_CSS_Rule objects * from a store or otherwise. * @param array $options { * Optional. An array of options. Default empty array. * * @type string|null $context An identifier describing the origin of the style object, * e.g. 'block-supports' or 'global-styles'. Default 'block-supports'. * When set, the style engine will attempt to store the CSS rules. * @type bool $optimize Whether to optimize the CSS output, e.g. combine rules. * Default false. * @type bool $prettify Whether to add new lines and indents to output. * Defaults to whether the `SCRIPT_DEBUG` constant is defined. * } * @return string A compiled stylesheet from stored CSS rules. */ public static function compile_stylesheet_from_css_rules( $css_rules, $options = array() ) { $processor = new WP_Style_Engine_Processor(); $processor->add_rules( $css_rules ); return $processor->get_css( $options ); } }
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