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Includes both * presets and custom filters. * * Example: * [ * 'wp-duotone-blue-orange' => [ * 'slug' => 'blue-orange', * 'colors' => [ '#0000ff', '#ffcc00' ], * ], * 'wp-duotone-000000-ffffff-2' => [ * 'slug' => '000000-ffffff-2', * 'colors' => [ '#000000', '#ffffff' ], * ], * … * ] * * @internal * * @since 6.3.0 * * @var array */ private static $used_svg_filter_data = array(); /** * All of the block CSS declarations for styles on the page. * * Example: * [ * [ * 'selector' => '.wp-duotone-000000-ffffff-2.wp-block-image img', * 'declarations' => [ * 'filter' => 'url(#wp-duotone-000000-ffffff-2)', * ], * ], * … * ] * * @internal * * @since 6.3.0 * * @var array */ private static $block_css_declarations = array(); /** * Clamps a value between an upper and lower bound. * * Direct port of colord's clamp function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/helpers.ts#L23 Sourced from colord. * * @internal * * @since 6.3.0 * * @param float $number The number to clamp. * @param float $min The minimum value. * @param float $max The maximum value. * @return float The clamped value. */ private static function colord_clamp( $number, $min = 0, $max = 1 ) { return $number > $max ? $max : ( $number > $min ? $number : $min ); } /** * Processes and clamps a degree (angle) value properly. * * Direct port of colord's clampHue function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/helpers.ts#L32 Sourced from colord. * * @internal * * @since 6.3.0 * * @param float $degrees The hue to clamp. * @return float The clamped hue. */ private static function colord_clamp_hue( $degrees ) { $degrees = is_finite( $degrees ) ? $degrees % 360 : 0; return $degrees > 0 ? $degrees : $degrees + 360; } /** * Converts a hue value to degrees from 0 to 360 inclusive. * * Direct port of colord's parseHue function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/helpers.ts#L40 Sourced from colord. * * @internal * * @since 6.3.0 * * @param float $value The hue value to parse. * @param string $unit The unit of the hue value. * @return float The parsed hue value. */ private static function colord_parse_hue( $value, $unit = 'deg' ) { $angle_units = array( 'grad' => 360 / 400, 'turn' => 360, 'rad' => 360 / ( M_PI * 2 ), ); $factor = $angle_units[ $unit ] ?? 1; return (float) $value * $factor; } /** * Parses any valid Hex3, Hex4, Hex6 or Hex8 string and converts it to an RGBA object. * * Direct port of colord's parseHex function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hex.ts#L8 Sourced from colord. * * @internal * * @since 6.3.0 * * @param string $hex The hex string to parse. * @return array|null An array of RGBA values or null if the hex string is invalid. */ private static function colord_parse_hex( $hex ) { $is_match = preg_match( '/^#([0-9a-f]{3,8})$/i', $hex, $hex_match ); if ( ! $is_match ) { return null; } $hex = $hex_match[1]; if ( 4 >= strlen( $hex ) ) { return array( 'r' => (int) base_convert( $hex[0] . $hex[0], 16, 10 ), 'g' => (int) base_convert( $hex[1] . $hex[1], 16, 10 ), 'b' => (int) base_convert( $hex[2] . $hex[2], 16, 10 ), 'a' => 4 === strlen( $hex ) ? round( (int) base_convert( $hex[3] . $hex[3], 16, 10 ) / 255, 2 ) : 1, ); } if ( 6 === strlen( $hex ) || 8 === strlen( $hex ) ) { return array( 'r' => (int) base_convert( substr( $hex, 0, 2 ), 16, 10 ), 'g' => (int) base_convert( substr( $hex, 2, 2 ), 16, 10 ), 'b' => (int) base_convert( substr( $hex, 4, 2 ), 16, 10 ), 'a' => 8 === strlen( $hex ) ? round( (int) base_convert( substr( $hex, 6, 2 ), 16, 10 ) / 255, 2 ) : 1, ); } return null; } /** * Clamps an array of RGBA values. * * Direct port of colord's clampRgba function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/rgb.ts#L5 Sourced from colord. * * @internal * * @since 6.3.0 * * @param array $rgba The RGBA array to clamp. * @return array The clamped RGBA array. */ private static function colord_clamp_rgba( $rgba ) { $rgba['r'] = self::colord_clamp( $rgba['r'], 0, 255 ); $rgba['g'] = self::colord_clamp( $rgba['g'], 0, 255 ); $rgba['b'] = self::colord_clamp( $rgba['b'], 0, 255 ); $rgba['a'] = self::colord_clamp( $rgba['a'] ); return $rgba; } /** * Parses a valid RGB[A] CSS color function/string. * * Direct port of colord's parseRgbaString function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/rgbString.ts#L18 Sourced from colord. * * @internal * * @since 6.3.0 * * @param string $input The RGBA string to parse. * @return array|null An array of RGBA values or null if the RGB string is invalid. */ private static function colord_parse_rgba_string( $input ) { // Functional syntax. $is_match = preg_match( '/^rgba?\(\s*([+-]?\d*\.?\d+)(%)?\s*,\s*([+-]?\d*\.?\d+)(%)?\s*,\s*([+-]?\d*\.?\d+)(%)?\s*(?:,\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i', $input, $match ); if ( ! $is_match ) { // Whitespace syntax. $is_match = preg_match( '/^rgba?\(\s*([+-]?\d*\.?\d+)(%)?\s+([+-]?\d*\.?\d+)(%)?\s+([+-]?\d*\.?\d+)(%)?\s*(?:\/\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i', $input, $match ); } if ( ! $is_match ) { return null; } /* * For some reason, preg_match doesn't include empty matches at the end * of the array, so we add them manually to make things easier later. */ for ( $i = 1; $i <= 8; $i++ ) { if ( ! isset( $match[ $i ] ) ) { $match[ $i ] = ''; } } if ( $match[2] !== $match[4] || $match[4] !== $match[6] ) { return null; } return self::colord_clamp_rgba( array( 'r' => (float) $match[1] / ( $match[2] ? 100 / 255 : 1 ), 'g' => (float) $match[3] / ( $match[4] ? 100 / 255 : 1 ), 'b' => (float) $match[5] / ( $match[6] ? 100 / 255 : 1 ), 'a' => '' === $match[7] ? 1 : (float) $match[7] / ( $match[8] ? 100 : 1 ), ) ); } /** * Clamps an array of HSLA values. * * Direct port of colord's clampHsla function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsl.ts#L6 Sourced from colord. * * @internal * * @since 6.3.0 * * @param array $hsla The HSLA array to clamp. * @return array The clamped HSLA array. */ private static function colord_clamp_hsla( $hsla ) { $hsla['h'] = self::colord_clamp_hue( $hsla['h'] ); $hsla['s'] = self::colord_clamp( $hsla['s'], 0, 100 ); $hsla['l'] = self::colord_clamp( $hsla['l'], 0, 100 ); $hsla['a'] = self::colord_clamp( $hsla['a'] ); return $hsla; } /** * Converts an HSVA array to RGBA. * * Direct port of colord's hsvaToRgba function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsv.ts#L52 Sourced from colord. * * @internal * * @since 6.3.0 * * @param array $hsva The HSVA array to convert. * @return array The RGBA array. */ private static function colord_hsva_to_rgba( $hsva ) { $h = ( $hsva['h'] / 360 ) * 6; $s = $hsva['s'] / 100; $v = $hsva['v'] / 100; $a = $hsva['a']; $hh = floor( $h ); $b = $v * ( 1 - $s ); $c = $v * ( 1 - ( $h - $hh ) * $s ); $d = $v * ( 1 - ( 1 - $h + $hh ) * $s ); $module = $hh % 6; return array( 'r' => array( $v, $c, $b, $b, $d, $v )[ $module ] * 255, 'g' => array( $d, $v, $v, $c, $b, $b )[ $module ] * 255, 'b' => array( $b, $b, $d, $v, $v, $c )[ $module ] * 255, 'a' => $a, ); } /** * Converts an HSLA array to HSVA. * * Direct port of colord's hslaToHsva function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsl.ts#L33 Sourced from colord. * * @internal * * @since 6.3.0 * * @param array $hsla The HSLA array to convert. * @return array The HSVA array. */ private static function colord_hsla_to_hsva( $hsla ) { $h = $hsla['h']; $s = $hsla['s']; $l = $hsla['l']; $a = $hsla['a']; $s *= ( $l < 50 ? $l : 100 - $l ) / 100; return array( 'h' => $h, 's' => $s > 0 ? ( ( 2 * $s ) / ( $l + $s ) ) * 100 : 0, 'v' => $l + $s, 'a' => $a, ); } /** * Converts an HSLA array to RGBA. * * Direct port of colord's hslaToRgba function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hsl.ts#L55 Sourced from colord. * * @internal * * @since 6.3.0 * * @param array $hsla The HSLA array to convert. * @return array The RGBA array. */ private static function colord_hsla_to_rgba( $hsla ) { return self::colord_hsva_to_rgba( self::colord_hsla_to_hsva( $hsla ) ); } /** * Parses a valid HSL[A] CSS color function/string. * * Direct port of colord's parseHslaString function. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/colorModels/hslString.ts#L17 Sourced from colord. * * @internal * * @since 6.3.0 * * @param string $input The HSLA string to parse. * @return array|null An array of RGBA values or null if the RGB string is invalid. */ private static function colord_parse_hsla_string( $input ) { // Functional syntax. $is_match = preg_match( '/^hsla?\(\s*([+-]?\d*\.?\d+)(deg|rad|grad|turn)?\s*,\s*([+-]?\d*\.?\d+)%\s*,\s*([+-]?\d*\.?\d+)%\s*(?:,\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i', $input, $match ); if ( ! $is_match ) { // Whitespace syntax. $is_match = preg_match( '/^hsla?\(\s*([+-]?\d*\.?\d+)(deg|rad|grad|turn)?\s+([+-]?\d*\.?\d+)%\s+([+-]?\d*\.?\d+)%\s*(?:\/\s*([+-]?\d*\.?\d+)(%)?\s*)?\)$/i', $input, $match ); } if ( ! $is_match ) { return null; } /* * For some reason, preg_match doesn't include empty matches at the end * of the array, so we add them manually to make things easier later. */ for ( $i = 1; $i <= 6; $i++ ) { if ( ! isset( $match[ $i ] ) ) { $match[ $i ] = ''; } } $hsla = self::colord_clamp_hsla( array( 'h' => self::colord_parse_hue( $match[1], $match[2] ), 's' => (float) $match[3], 'l' => (float) $match[4], 'a' => '' === $match[5] ? 1 : (float) $match[5] / ( $match[6] ? 100 : 1 ), ) ); return self::colord_hsla_to_rgba( $hsla ); } /** * Tries to convert an incoming string into RGBA values. * * Direct port of colord's parse function simplified for our use case. This * version only supports string parsing and only returns RGBA values. * * @link https://github.com/omgovich/colord/blob/3f859e03b0ca622eb15480f611371a0f15c9427f/src/parse.ts#L37 Sourced from colord. * * @internal * * @since 6.3.0 * * @param string $input The string to parse. * @return array|null An array of RGBA values or null if the string is invalid. */ private static function colord_parse( $input ) { $result = self::colord_parse_hex( $input ); if ( ! $result ) { $result = self::colord_parse_rgba_string( $input ); } if ( ! $result ) { $result = self::colord_parse_hsla_string( $input ); } return $result; } /** * Takes the inline CSS duotone variable from a block and return the slug. * * Handles styles slugs like: * var:preset|duotone|blue-orange * var(--wp--preset--duotone--blue-orange) * * @internal * * @since 6.3.0 * * @param string|string[] $duotone_attr The duotone attribute from a block. * @return string The slug of the duotone preset or an empty string if no slug is found (including when an array was passed). */ private static function get_slug_from_attribute( $duotone_attr ) { if ( ! is_string( $duotone_attr ) ) { return ''; } // Uses Branch Reset Groups `(?|…)` to return one capture group. preg_match( '/(?|var:preset\|duotone\|(\S+)|var\(--wp--preset--duotone--(\S+)\))/', $duotone_attr, $matches ); return ! empty( $matches[1] ) ? $matches[1] : ''; } /** * Checks if we have a valid duotone preset. * * Valid presets are defined in the $global_styles_presets array. * * @internal * * @since 6.3.0 * * @param string $duotone_attr The duotone attribute from a block. * @param string|string[] $duotone_attr The duotone attribute from a block. */ private static function is_preset( $duotone_attr ) { if ( ! is_string( $duotone_attr ) ) { return false; } $slug = self::get_slug_from_attribute( $duotone_attr ); $filter_id = self::get_filter_id( $slug ); return array_key_exists( $filter_id, self::get_all_global_styles_presets() ); } /** * Gets the CSS variable name for a duotone preset. * * Example output: * --wp--preset--duotone--blue-orange * * @internal * * @since 6.3.0 * * @param string $slug The slug of the duotone preset. * @return string The CSS variable name. */ private static function get_css_custom_property_name( $slug ) { return "--wp--preset--duotone--$slug"; } /** * Get the ID of the duotone filter. * * Example output: * wp-duotone-blue-orange * * @internal * * @since 6.3.0 * * @param string $slug The slug of the duotone preset. * @return string The ID of the duotone filter. */ private static function get_filter_id( $slug ) { return "wp-duotone-$slug"; } /** * Get the CSS variable for a duotone preset. * * Example output: * var(--wp--preset--duotone--blue-orange) * * @internal * * @since 6.3.0 * * @param string $slug The slug of the duotone preset. * @return string The CSS variable. */ private static function get_css_var( $slug ) { $name = self::get_css_custom_property_name( $slug ); return "var($name)"; } /** * Get the URL for a duotone filter. * * Example output: * url(#wp-duotone-blue-orange) * * @internal * * @since 6.3.0 * * @param string $filter_id The ID of the filter. * @return string The URL for the duotone filter. */ private static function get_filter_url( $filter_id ) { return "url(#$filter_id)"; } /** * Gets the SVG for the duotone filter definition. * * Whitespace is removed when SCRIPT_DEBUG is not enabled. * * @internal * * @since 6.3.0 * * @param string $filter_id The ID of the filter. * @param array $colors An array of color strings. * @return string An SVG with a duotone filter definition. */ private static function get_filter_svg( $filter_id, $colors ) { $duotone_values = array( 'r' => array(), 'g' => array(), 'b' => array(), 'a' => array(), ); foreach ( $colors as $color_str ) { $color = self::colord_parse( $color_str ); if ( null === $color ) { $error_message = sprintf( /* translators: 1: Duotone colors, 2: theme.json, 3: settings.color.duotone */ __( '"%1$s" in %2$s %3$s is not a hex or rgb string.' ), $color_str, 'theme.json', 'settings.color.duotone' ); _doing_it_wrong( __METHOD__, $error_message, '6.3.0' ); } else { $duotone_values['r'][] = $color['r'] / 255; $duotone_values['g'][] = $color['g'] / 255; $duotone_values['b'][] = $color['b'] / 255; $duotone_values['a'][] = $color['a']; } } ob_start(); ?> <', '><', $svg ); $svg = trim( $svg ); } return $svg; } /** * Returns the prefixed id for the duotone filter for use as a CSS id. * * Exported for the deprecated function wp_get_duotone_filter_id(). * * @internal * * @since 6.3.0 * @deprecated 6.3.0 * * @param array $preset Duotone preset value as seen in theme.json. * @return string Duotone filter CSS id. */ public static function get_filter_id_from_preset( $preset ) { _deprecated_function( __FUNCTION__, '6.3.0' ); $filter_id = ''; if ( isset( $preset['slug'] ) ) { $filter_id = self::get_filter_id( $preset['slug'] ); } return $filter_id; } /** * Gets the SVG for the duotone filter definition from a preset. * * Exported for the deprecated function wp_get_duotone_filter_property(). * * @internal * * @since 6.3.0 * @deprecated 6.3.0 * * @param array $preset The duotone preset. * @return string The SVG for the filter definition. */ public static function get_filter_svg_from_preset( $preset ) { _deprecated_function( __FUNCTION__, '6.3.0' ); $filter_id = self::get_filter_id_from_preset( $preset ); return self::get_filter_svg( $filter_id, $preset['colors'] ); } /** * Get the SVGs for the duotone filters. * * Example output: * …… * * @internal * * @since 6.3.0 * * @param array $sources The duotone presets. * @return string The SVGs for the duotone filters. */ private static function get_svg_definitions( $sources ) { $svgs = ''; foreach ( $sources as $filter_id => $filter_data ) { $colors = $filter_data['colors']; $svgs .= self::get_filter_svg( $filter_id, $colors ); } return $svgs; } /** * Get the CSS for global styles. * * Example output: * body{--wp--preset--duotone--blue-orange:url('#wp-duotone-blue-orange');} * * @internal * * @since 6.3.0 * @since 6.6.0 Replaced body selector with `WP_Theme_JSON::ROOT_CSS_PROPERTIES_SELECTOR`. * * @param array $sources The duotone presets. * @return string The CSS for global styles. */ private static function get_global_styles_presets( $sources ) { $css = WP_Theme_JSON::ROOT_CSS_PROPERTIES_SELECTOR . '{'; foreach ( $sources as $filter_id => $filter_data ) { $slug = $filter_data['slug']; $colors = $filter_data['colors']; $css_property_name = self::get_css_custom_property_name( $slug ); $declaration_value = is_string( $colors ) ? $colors : self::get_filter_url( $filter_id ); $css .= "$css_property_name:$declaration_value;"; } $css .= '}'; return $css; } /** * Enqueue a block CSS declaration for the page. * * This does not include any SVGs. * * @internal * * @since 6.3.0 * * @param string $filter_id The filter ID. e.g. 'wp-duotone-000000-ffffff-2'. * @param string $duotone_selector The block's duotone selector. e.g. '.wp-block-image img'. * @param string $filter_value The filter CSS value. e.g. 'url(#wp-duotone-000000-ffffff-2)' or 'unset'. */ private static function enqueue_block_css( $filter_id, $duotone_selector, $filter_value ) { // Build the CSS selectors to which the filter will be applied. $selectors = explode( ',', $duotone_selector ); $selectors_scoped = array(); foreach ( $selectors as $selector_part ) { /* * Assuming the selector part is a subclass selector (not a tag name) * so we can prepend the filter id class. If we want to support elements * such as `img` or namespaces, we'll need to add a case for that here. */ $selectors_scoped[] = '.' . $filter_id . trim( $selector_part ); } $selector = implode( ', ', $selectors_scoped ); self::$block_css_declarations[] = array( 'selector' => $selector, 'declarations' => array( 'filter' => $filter_value, ), ); } /** * Enqueue custom filter assets for the page. * * Includes an SVG filter and block CSS declaration. * * @internal * * @since 6.3.0 * * @param string $filter_id The filter ID. e.g. 'wp-duotone-000000-ffffff-2'. * @param string $duotone_selector The block's duotone selector. e.g. '.wp-block-image img'. * @param string $filter_value The filter CSS value. e.g. 'url(#wp-duotone-000000-ffffff-2)' or 'unset'. * @param array $filter_data Duotone filter data with 'slug' and 'colors' keys. */ private static function enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $filter_data ) { self::$used_svg_filter_data[ $filter_id ] = $filter_data; self::enqueue_block_css( $filter_id, $duotone_selector, $filter_value ); } /** * Enqueue preset assets for the page. * * Includes a CSS custom property, SVG filter, and block CSS declaration. * * @internal * * @since 6.3.0 * * @param string $filter_id The filter ID. e.g. 'wp-duotone-blue-orange'. * @param string $duotone_selector The block's duotone selector. e.g. '.wp-block-image img'. * @param string $filter_value The filter CSS value. e.g. 'url(#wp-duotone-blue-orange)' or 'unset'. */ private static function enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value ) { $global_styles_presets = self::get_all_global_styles_presets(); if ( ! array_key_exists( $filter_id, $global_styles_presets ) ) { $error_message = sprintf( /* translators: 1: Duotone filter ID, 2: theme.json */ __( 'The duotone id "%1$s" is not registered in %2$s settings' ), $filter_id, 'theme.json' ); _doing_it_wrong( __METHOD__, $error_message, '6.3.0' ); return; } self::$used_global_styles_presets[ $filter_id ] = $global_styles_presets[ $filter_id ]; self::enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $global_styles_presets[ $filter_id ] ); } /** * Registers the style and colors block attributes for block types that support it. * * Block support is added with `supports.filter.duotone` in block.json. * * @since 6.3.0 * * @param WP_Block_Type $block_type Block Type. */ public static function register_duotone_support( $block_type ) { /* * Previous `color.__experimentalDuotone` support flag is migrated * to `filter.duotone` via `block_type_metadata_settings` filter. */ if ( block_has_support( $block_type, array( 'filter', 'duotone' ), null ) ) { if ( ! $block_type->attributes ) { $block_type->attributes = array(); } if ( ! array_key_exists( 'style', $block_type->attributes ) ) { $block_type->attributes['style'] = array( 'type' => 'object', ); } } } /** * Get the CSS selector for a block type. * * This handles selectors defined in `color.__experimentalDuotone` support * if `filter.duotone` support is not defined. * * @internal * @since 6.3.0 * * @param WP_Block_Type $block_type Block type to check for support. * @return string|null The CSS selector or null if there is no support. */ private static function get_selector( $block_type ) { if ( ! ( $block_type instanceof WP_Block_Type ) ) { return null; } /* * Backward compatibility with `supports.color.__experimentalDuotone` * is provided via the `block_type_metadata_settings` filter. If * `supports.filter.duotone` has not been set and the experimental * property has been, the experimental property value is copied into * `supports.filter.duotone`. */ $duotone_support = block_has_support( $block_type, array( 'filter', 'duotone' ) ); if ( ! $duotone_support ) { return null; } /* * If the experimental duotone support was set, that value is to be * treated as a selector and requires scoping. */ $experimental_duotone = $block_type->supports['color']['__experimentalDuotone'] ?? false; if ( $experimental_duotone ) { $root_selector = wp_get_block_css_selector( $block_type ); return is_string( $experimental_duotone ) ? WP_Theme_JSON::scope_selector( $root_selector, $experimental_duotone ) : $root_selector; } // Regular filter.duotone support uses filter.duotone selectors with fallbacks. return wp_get_block_css_selector( $block_type, array( 'filter', 'duotone' ), true ); } /** * Scrape all possible duotone presets from global and theme styles and * store them in self::$global_styles_presets. * * Used in conjunction with self::render_duotone_support for blocks that * use duotone preset filters. * * @since 6.3.0 * * @return array An array of global styles presets, keyed on the filter ID. */ private static function get_all_global_styles_presets() { if ( isset( self::$global_styles_presets ) ) { return self::$global_styles_presets; } // Get the per block settings from the theme.json. $tree = wp_get_global_settings(); $presets_by_origin = $tree['color']['duotone'] ?? array(); self::$global_styles_presets = array(); foreach ( $presets_by_origin as $presets ) { foreach ( $presets as $preset ) { $filter_id = self::get_filter_id( _wp_to_kebab_case( $preset['slug'] ) ); self::$global_styles_presets[ $filter_id ] = $preset; } } return self::$global_styles_presets; } /** * Scrape all block names from global styles and store in self::$global_styles_block_names. * * Used in conjunction with self::render_duotone_support to output the * duotone filters defined in the theme.json global styles. * * @since 6.3.0 * * @return string[] An array of global style block slugs, keyed on the block name. */ private static function get_all_global_style_block_names() { if ( isset( self::$global_styles_block_names ) ) { return self::$global_styles_block_names; } // Get the per block settings from the theme.json. $tree = WP_Theme_JSON_Resolver::get_merged_data(); $block_nodes = $tree->get_styles_block_nodes(); $theme_json = $tree->get_raw_data(); self::$global_styles_block_names = array(); foreach ( $block_nodes as $block_node ) { // This block definition doesn't include any duotone settings. Skip it. if ( empty( $block_node['duotone'] ) ) { continue; } // Value looks like this: 'var(--wp--preset--duotone--blue-orange)' or 'var:preset|duotone|blue-orange'. $duotone_attr_path = array_merge( $block_node['path'], array( 'filter', 'duotone' ) ); $duotone_attr = _wp_array_get( $theme_json, $duotone_attr_path, array() ); if ( empty( $duotone_attr ) ) { continue; } // If it has a duotone filter preset, save the block name and the preset slug. // Only process if it's a string (preset reference), not an array (custom colors). if ( ! is_string( $duotone_attr ) ) { continue; } $slug = self::get_slug_from_attribute( $duotone_attr ); if ( $slug && $slug !== $duotone_attr ) { self::$global_styles_block_names[ $block_node['name'] ] = $slug; } } return self::$global_styles_block_names; } /** * Render out the duotone CSS styles and SVG. * * The hooks self::set_global_style_block_names and self::set_global_styles_presets * must be called before this function. * * @since 6.3.0 * * @param string $block_content Rendered block content. * @param array $block Block object. * @param WP_Block $wp_block The block instance. * @return string Filtered block content. */ public static function render_duotone_support( $block_content, $block, $wp_block ) { if ( ! $block['blockName'] ) { return $block_content; } $duotone_selector = self::get_selector( $wp_block->block_type ); if ( ! $duotone_selector ) { return $block_content; } $global_styles_block_names = self::get_all_global_style_block_names(); // The block should have a duotone attribute or have duotone defined in its theme.json to be processed. $has_duotone_attribute = isset( $block['attrs']['style']['color']['duotone'] ); $has_global_styles_duotone = array_key_exists( $block['blockName'], $global_styles_block_names ); if ( ! $has_duotone_attribute && ! $has_global_styles_duotone ) { return $block_content; } // Generate the pieces needed for rendering a duotone to the page. if ( $has_duotone_attribute ) { /* * Possible values for duotone attribute: * 1. Array of colors - e.g. array('#000000', '#ffffff'). * 2. Variable for an existing Duotone preset - e.g. 'var:preset|duotone|blue-orange' or 'var(--wp--preset--duotone--blue-orange)'' * 3. A CSS string - e.g. 'unset' to remove globally applied duotone. */ $duotone_attr = $block['attrs']['style']['color']['duotone']; $is_preset = is_string( $duotone_attr ) && self::is_preset( $duotone_attr ); $is_css = is_string( $duotone_attr ) && ! $is_preset; $is_custom = is_array( $duotone_attr ); if ( $is_preset ) { $slug = self::get_slug_from_attribute( $duotone_attr ); // e.g. 'blue-orange'. $filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-blue-orange'. $filter_value = self::get_css_var( $slug ); // e.g. 'var(--wp--preset--duotone--blue-orange)'. // CSS custom property, SVG filter, and block CSS. self::enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value ); } elseif ( $is_css ) { $slug = wp_unique_id( sanitize_key( $duotone_attr . '-' ) ); // e.g. 'unset-1'. $filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-unset-1'. $filter_value = $duotone_attr; // e.g. 'unset'. // Just block CSS. self::enqueue_block_css( $filter_id, $duotone_selector, $filter_value ); } elseif ( $is_custom ) { $slug = wp_unique_id( sanitize_key( implode( '-', $duotone_attr ) . '-' ) ); // e.g. '000000-ffffff-2'. $filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-000000-ffffff-2'. $filter_value = self::get_filter_url( $filter_id ); // e.g. 'url(#wp-duotone-filter-000000-ffffff-2)'. $filter_data = array( 'slug' => $slug, 'colors' => $duotone_attr, ); // SVG filter and block CSS. self::enqueue_custom_filter( $filter_id, $duotone_selector, $filter_value, $filter_data ); } } elseif ( $has_global_styles_duotone ) { $slug = $global_styles_block_names[ $block['blockName'] ]; // e.g. 'blue-orange'. $filter_id = self::get_filter_id( $slug ); // e.g. 'wp-duotone-filter-blue-orange'. $filter_value = self::get_css_var( $slug ); // e.g. 'var(--wp--preset--duotone--blue-orange)'. // CSS custom property, SVG filter, and block CSS. self::enqueue_global_styles_preset( $filter_id, $duotone_selector, $filter_value ); } // Like the layout hook, this assumes the hook only applies to blocks with a single wrapper. $tags = new WP_HTML_Tag_Processor( $block_content ); if ( $tags->next_tag() ) { $tags->add_class( $filter_id ); } return $tags->get_updated_html(); } /** * Fixes the issue with our generated class name not being added to the block's outer container * in classic themes due to gutenberg_restore_image_outer_container from layout block supports. * * @since 6.6.0 * * @param string $block_content Rendered block content. * @return string Filtered block content. */ public static function restore_image_outer_container( $block_content ) { if ( wp_theme_has_theme_json() ) { return $block_content; } $tags = new WP_HTML_Tag_Processor( $block_content ); $wrapper_query = array( 'tag_name' => 'div', 'class_name' => 'wp-block-image', ); if ( ! $tags->next_tag( $wrapper_query ) ) { return $block_content; } $tags->set_bookmark( 'wrapper-div' ); $tags->next_tag(); $inner_classnames = explode( ' ', $tags->get_attribute( 'class' ) ); foreach ( $inner_classnames as $classname ) { if ( str_starts_with( $classname, 'wp-duotone' ) ) { $tags->remove_class( $classname ); $tags->seek( 'wrapper-div' ); $tags->add_class( $classname ); break; } } return $tags->get_updated_html(); } /** * Appends the used block duotone filter declarations to the inline block supports CSS. * * Uses the declarations saved in earlier calls to self::enqueue_block_css. * * @since 6.3.0 */ public static function output_block_styles() { if ( ! empty( self::$block_css_declarations ) ) { wp_style_engine_get_stylesheet_from_css_rules( self::$block_css_declarations, array( 'context' => 'block-supports', ) ); } } /** * Appends the used global style duotone filter presets (CSS custom * properties) to the inline global styles CSS. * * Uses the declarations saved in earlier calls to self::enqueue_global_styles_preset. * * @since 6.3.0 */ public static function output_global_styles() { if ( ! empty( self::$used_global_styles_presets ) ) { wp_add_inline_style( 'global-styles', self::get_global_styles_presets( self::$used_global_styles_presets ) ); } } /** * Outputs all necessary SVG for duotone filters, CSS for classic themes. * * Uses the declarations saved in earlier calls to self::enqueue_global_styles_preset * and self::enqueue_custom_filter. * * @since 6.3.0 */ public static function output_footer_assets() { if ( ! empty( self::$used_svg_filter_data ) ) { echo self::get_svg_definitions( self::$used_svg_filter_data ); } // In block themes, the CSS is added in the head via wp_add_inline_style in the wp_enqueue_scripts action. if ( ! wp_is_block_theme() ) { $style_tag_id = 'core-block-supports-duotone'; wp_register_style( $style_tag_id, false ); if ( ! empty( self::$used_global_styles_presets ) ) { wp_add_inline_style( $style_tag_id, self::get_global_styles_presets( self::$used_global_styles_presets ) ); } if ( ! empty( self::$block_css_declarations ) ) { wp_add_inline_style( $style_tag_id, wp_style_engine_get_stylesheet_from_css_rules( self::$block_css_declarations ) ); } wp_enqueue_style( $style_tag_id ); } } /** * Adds the duotone SVGs and CSS custom properties to the editor settings. * * This allows the properties to be pulled in by the EditorStyles component * in JS and rendered in the post editor. * * @since 6.3.0 * * @param array $settings The block editor settings from the `block_editor_settings_all` filter. * @return array The editor settings with duotone SVGs and CSS custom properties. */ public static function add_editor_settings( $settings ) { $global_styles_presets = self::get_all_global_styles_presets(); if ( ! empty( $global_styles_presets ) ) { if ( ! isset( $settings['styles'] ) ) { $settings['styles'] = array(); } $settings['styles'][] = array( // For the editor we can add all of the presets by default. 'assets' => self::get_svg_definitions( $global_styles_presets ), // The 'svgs' type is new in 6.3 and requires the corresponding JS changes in the EditorStyles component to work. '__unstableType' => 'svgs', // These styles not generated by global styles, so this must be false or they will be stripped out in wp_get_block_editor_settings. 'isGlobalStyles' => false, ); $settings['styles'][] = array( // For the editor we can add all of the presets by default. 'css' => self::get_global_styles_presets( $global_styles_presets ), // This must be set and must be something other than 'theme' or they will be stripped out in the post editor component. '__unstableType' => 'presets', // These styles are no longer generated by global styles, so this must be false or they will be stripped out in wp_get_block_editor_settings. 'isGlobalStyles' => false, ); } return $settings; } /** * Migrates the experimental duotone support flag to the stabilized location. * * This moves `supports.color.__experimentalDuotone` to `supports.filter.duotone`. * * @since 6.3.0 * * @param array $settings Current block type settings. * @param array $metadata Block metadata as read in via block.json. * @return array Filtered block type settings. */ public static function migrate_experimental_duotone_support_flag( $settings, $metadata ) { $duotone_support = $metadata['supports']['color']['__experimentalDuotone'] ?? null; if ( ! isset( $settings['supports']['filter']['duotone'] ) && null !== $duotone_support ) { _wp_array_set( $settings, array( 'supports', 'filter', 'duotone' ), (bool) $duotone_support ); } return $settings; } /** * Gets the CSS filter property value from a preset. * * Exported for the deprecated function wp_get_duotone_filter_id(). * * @internal * * @since 6.3.0 * @deprecated 6.3.0 * * @param array $preset The duotone preset. * @return string The CSS filter property value. */ public static function get_filter_css_property_value_from_preset( $preset ) { _deprecated_function( __FUNCTION__, '6.3.0' ); if ( isset( $preset['colors'] ) && is_string( $preset['colors'] ) ) { return $preset['colors']; } $filter_id = self::get_filter_id_from_preset( $preset ); return 'url(#' . $filter_id . ')'; } }