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Changeset 52744


Ignore:
Timestamp:
02/17/2022 09:02:10 AM (3 years ago)
Author:
audrasjb
Message:

Themes: Allow extending WP_Theme_JSON and WP_Theme_JSON_Resolver classes.

This change updates methods visibility from private to protected and adds late static binding.

Original PRs from Gutenberg repository:

Props oandregal, Mamaduka, kapilpaul.
Fixes #55178.
See #55179.

Location:
trunk/src/wp-includes
Files:
2 edited

Legend:

Unmodified
Added
Removed

  • trunk/src/wp-includes/class-wp-theme-json-resolver.php

    r52610 r52744  
    2626     * @var WP_Theme_JSON
    2727     */
    28     private static $core = null;
     28    protected static $core = null;
    2929
    3030    /**
    … …  
    3434     * @var WP_Theme_JSON
    3535     */
    36     private static $theme = null;
     36    protected static $theme = null;
    3737
    3838    /**
    … …  
    4242     * @var bool
    4343     */
    44     private static $theme_has_support = null;
     44    protected static $theme_has_support = null;
    4545
    4646    /**
    … …  
    5050     * @var WP_Theme_JSON
    5151     */
    52     private static $user = null;
     52    protected static $user = null;
    5353
    5454    /**
    … …  
    5959     * @var int
    6060     */
    61     private static $user_custom_post_type_id = null;
     61    protected static $user_custom_post_type_id = null;
    6262
    6363    /**
    … …  
    6868     * @var array
    6969     */
    70     private static $i18n_schema = null;
     70    protected static $i18n_schema = null;
    7171
    7272    /**
    … …  
    7979     * @return array Contents that adhere to the theme.json schema.
    8080     */
    81     private static function read_json_file( $file_path ) {
     81    protected static function read_json_file( $file_path ) {
    8282        $config = array();
    8383        if ( $file_path ) {
    … …  
    114114     * @return array Returns the modified $theme_json_structure.
    115115     */
    116     private static function translate( $theme_json, $domain = 'default' ) {
    117         if ( null === self::$i18n_schema ) {
    118             $i18n_schema       = wp_json_file_decode( __DIR__ . '/theme-i18n.json' );
    119             self::$i18n_schema = null === $i18n_schema ? array() : $i18n_schema;
    120         }
    121 
    122         return translate_settings_using_i18n_schema( self::$i18n_schema, $theme_json, $domain );
     116    protected static function translate( $theme_json, $domain = 'default' ) {
     117        if ( null === static::$i18n_schema ) {
     118            $i18n_schema         = wp_json_file_decode( __DIR__ . '/theme-i18n.json' );
     119            static::$i18n_schema = null === $i18n_schema ? array() : $i18n_schema;
     120        }
     121
     122        return translate_settings_using_i18n_schema( static::$i18n_schema, $theme_json, $domain );
    123123    }
    124124
    … …  
    131131     */
    132132    public static function get_core_data() {
    133         if ( null !== self::$core ) {
    134             return self::$core;
    135         }
    136 
    137         $config     = self::read_json_file( __DIR__ . '/theme.json' );
    138         $config     = self::translate( $config );
    139         self::$core = new WP_Theme_JSON( $config, 'default' );
    140 
    141         return self::$core;
     133        if ( null !== static::$core ) {
     134            return static::$core;
     135        }
     136
     137        $config       = static::read_json_file( __DIR__ . '/theme.json' );
     138        $config       = static::translate( $config );
     139        static::$core = new WP_Theme_JSON( $config, 'default' );
     140
     141        return static::$core;
    142142    }
    143143
    … …  
    160160            _deprecated_argument( __METHOD__, '5.9.0' );
    161161        }
    162         if ( null === self::$theme ) {
    163             $theme_json_data = self::read_json_file( self::get_file_path_from_theme( 'theme.json' ) );
    164             $theme_json_data = self::translate( $theme_json_data, wp_get_theme()->get( 'TextDomain' ) );
    165             self::$theme     = new WP_Theme_JSON( $theme_json_data );
     162        if ( null === static::$theme ) {
     163            $theme_json_data = static::read_json_file( static::get_file_path_from_theme( 'theme.json' ) );
     164            $theme_json_data = static::translate( $theme_json_data, wp_get_theme()->get( 'TextDomain' ) );
     165            static::$theme   = new WP_Theme_JSON( $theme_json_data );
    166166
    167167            if ( wp_get_theme()->parent() ) {
    168168                // Get parent theme.json.
    169                 $parent_theme_json_data = self::read_json_file( self::get_file_path_from_theme( 'theme.json', true ) );
    170                 $parent_theme_json_data = self::translate( $parent_theme_json_data, wp_get_theme()->parent()->get( 'TextDomain' ) );
     169                $parent_theme_json_data = static::read_json_file( static::get_file_path_from_theme( 'theme.json', true ) );
     170                $parent_theme_json_data = static::translate( $parent_theme_json_data, wp_get_theme()->parent()->get( 'TextDomain' ) );
    171171                $parent_theme           = new WP_Theme_JSON( $parent_theme_json_data );
    172172
    173173                // Merge the child theme.json into the parent theme.json.
    174174                // The child theme takes precedence over the parent.
    175                 $parent_theme->merge( self::$theme );
    176                 self::$theme = $parent_theme;
     175                $parent_theme->merge( static::$theme );
     176                static::$theme = $parent_theme;
    177177            }
    178178        }
    … …  
    182182         * to override the ones declared via theme supports.
    183183         * So we take theme supports, transform it to theme.json shape
    184          * and merge the self::$theme upon that.
     184         * and merge the static::$theme upon that.
    185185         */
    186186        $theme_support_data = WP_Theme_JSON::get_from_editor_settings( get_default_block_editor_settings() );
    187         if ( ! self::theme_has_support() ) {
     187        if ( ! static::theme_has_support() ) {
    188188            if ( ! isset( $theme_support_data['settings']['color'] ) ) {
    189189                $theme_support_data['settings']['color'] = array();
    … …  
    211211        }
    212212        $with_theme_supports = new WP_Theme_JSON( $theme_support_data );
    213         $with_theme_supports->merge( self::$theme );
     213        $with_theme_supports->merge( static::$theme );
    214214
    215215        return $with_theme_supports;
    … …  
    300300     */
    301301    public static function get_user_data() {
    302         if ( null !== self::$user ) {
    303             return self::$user;
     302        if ( null !== static::$user ) {
     303            return static::$user;
    304304        }
    305305
    306306        $config   = array();
    307         $user_cpt = self::get_user_data_from_wp_global_styles( wp_get_theme() );
     307        $user_cpt = static::get_user_data_from_wp_global_styles( wp_get_theme() );
    308308
    309309        if ( array_key_exists( 'post_content', $user_cpt ) ) {
    … …  
    327327            }
    328328        }
    329         self::$user = new WP_Theme_JSON( $config, 'custom' );
    330 
    331         return self::$user;
     329        static::$user = new WP_Theme_JSON( $config, 'custom' );
     330
     331        return static::$user;
    332332    }
    333333
    … …  
    364364
    365365        $result = new WP_Theme_JSON();
    366         $result->merge( self::get_core_data() );
    367         $result->merge( self::get_theme_data() );
     366        $result->merge( static::get_core_data() );
     367        $result->merge( static::get_theme_data() );
    368368
    369369        if ( 'custom' === $origin ) {
    370             $result->merge( self::get_user_data() );
     370            $result->merge( static::get_user_data() );
    371371        }
    372372
    … …  
    383383     */
    384384    public static function get_user_global_styles_post_id() {
    385         if ( null !== self::$user_custom_post_type_id ) {
    386             return self::$user_custom_post_type_id;
    387         }
    388 
    389         $user_cpt = self::get_user_data_from_wp_global_styles( wp_get_theme(), true );
     385        if ( null !== static::$user_custom_post_type_id ) {
     386            return static::$user_custom_post_type_id;
     387        }
     388
     389        $user_cpt = static::get_user_data_from_wp_global_styles( wp_get_theme(), true );
    390390
    391391        if ( array_key_exists( 'ID', $user_cpt ) ) {
    392             self::$user_custom_post_type_id = $user_cpt['ID'];
    393         }
    394 
    395         return self::$user_custom_post_type_id;
     392            static::$user_custom_post_type_id = $user_cpt['ID'];
     393        }
     394
     395        return static::$user_custom_post_type_id;
    396396    }
    397397
    … …  
    405405     */
    406406    public static function theme_has_support() {
    407         if ( ! isset( self::$theme_has_support ) ) {
    408             self::$theme_has_support = (
    409                 is_readable( self::get_file_path_from_theme( 'theme.json' ) ) ||
    410                 is_readable( self::get_file_path_from_theme( 'theme.json', true ) )
     407        if ( ! isset( static::$theme_has_support ) ) {
     408            static::$theme_has_support = (
     409                is_readable( static::get_file_path_from_theme( 'theme.json' ) ) ||
     410                is_readable( static::get_file_path_from_theme( 'theme.json', true ) )
    411411            );
    412412        }
    413413
    414         return self::$theme_has_support;
     414        return static::$theme_has_support;
    415415    }
    416416
    … …  
    427427     * @return string The whole file path or empty if the file doesn't exist.
    428428     */
    429     private static function get_file_path_from_theme( $file_name, $template = false ) {
     429    protected static function get_file_path_from_theme( $file_name, $template = false ) {
    430430        $path      = $template ? get_template_directory() : get_stylesheet_directory();
    431431        $candidate = $path . '/' . $file_name;
    … …  
    442442     */
    443443    public static function clean_cached_data() {
    444         self::$core                     = null;
    445         self::$theme                    = null;
    446         self::$user                     = null;
    447         self::$user_custom_post_type_id = null;
    448         self::$theme_has_support        = null;
    449         self::$i18n_schema              = null;
     444        static::$core                     = null;
     445        static::$theme                    = null;
     446        static::$user                     = null;
     447        static::$user_custom_post_type_id = null;
     448        static::$theme_has_support        = null;
     449        static::$i18n_schema              = null;
    450450    }
    451451

  • trunk/src/wp-includes/class-wp-theme-json.php

    r52692 r52744  
    2525     * @var array
    2626     */
    27     private $theme_json = null;
     27    protected $theme_json = null;
    2828
    2929    /**
    … …  
    3535     * @var array
    3636     */
    37     private static $blocks_metadata = null;
     37    protected static $blocks_metadata = null;
    3838
    3939    /**
    … …  
    367367     */
    368368    public function __construct( $theme_json = array(), $origin = 'theme' ) {
    369         if ( ! in_array( $origin, self::VALID_ORIGINS, true ) ) {
     369        if ( ! in_array( $origin, static::VALID_ORIGINS, true ) ) {
    370370            $origin = 'theme';
    371371        }
    372372
    373373        $this->theme_json    = WP_Theme_JSON_Schema::migrate( $theme_json );
    374         $valid_block_names   = array_keys( self::get_blocks_metadata() );
    375         $valid_element_names = array_keys( self::ELEMENTS );
    376         $theme_json          = self::sanitize( $this->theme_json, $valid_block_names, $valid_element_names );
    377         $this->theme_json    = self::maybe_opt_in_into_settings( $theme_json );
     374        $valid_block_names   = array_keys( static::get_blocks_metadata() );
     375        $valid_element_names = array_keys( static::ELEMENTS );
     376        $theme_json          = static::sanitize( $this->theme_json, $valid_block_names, $valid_element_names );
     377        $this->theme_json    = static::maybe_opt_in_into_settings( $theme_json );
    378378
    379379        // Internally, presets are keyed by origin.
    380         $nodes = self::get_setting_nodes( $this->theme_json );
     380        $nodes = static::get_setting_nodes( $this->theme_json );
    381381        foreach ( $nodes as $node ) {
    382             foreach ( self::PRESETS_METADATA as $preset_metadata ) {
     382            foreach ( static::PRESETS_METADATA as $preset_metadata ) {
    383383                $path   = array_merge( $node['path'], $preset_metadata['path'] );
    384384                $preset = _wp_array_get( $this->theme_json, $path, null );
    … …  
    401401     * @return array The modified theme.json structure.
    402402     */
    403     private static function maybe_opt_in_into_settings( $theme_json ) {
     403    protected static function maybe_opt_in_into_settings( $theme_json ) {
    404404        $new_theme_json = $theme_json;
    405405
    … …  
    408408            true === $new_theme_json['settings']['appearanceTools']
    409409        ) {
    410             self::do_opt_in_into_settings( $new_theme_json['settings'] );
     410            static::do_opt_in_into_settings( $new_theme_json['settings'] );
    411411        }
    412412
    … …  
    414414            foreach ( $new_theme_json['settings']['blocks'] as &$block ) {
    415415                if ( isset( $block['appearanceTools'] ) && ( true === $block['appearanceTools'] ) ) {
    416                     self::do_opt_in_into_settings( $block );
     416                    static::do_opt_in_into_settings( $block );
    417417                }
    418418            }
    … …  
    429429     * @param array $context The context to which the settings belong.
    430430     */
    431     private static function do_opt_in_into_settings( &$context ) {
     431    protected static function do_opt_in_into_settings( &$context ) {
    432432        $to_opt_in = array(
    433433            array( 'border', 'color' ),
    … …  
    464464     * @return array The sanitized output.
    465465     */
    466     private static function sanitize( $input, $valid_block_names, $valid_element_names ) {
     466    protected static function sanitize( $input, $valid_block_names, $valid_element_names ) {
    467467        $output = array();
    468468
    … …  
    471471        }
    472472
    473         $output = array_intersect_key( $input, array_flip( self::VALID_TOP_LEVEL_KEYS ) );
     473        $output = array_intersect_key( $input, array_flip( static::VALID_TOP_LEVEL_KEYS ) );
    474474
    475475        // Some styles are only meant to be available at the top-level (e.g.: blockGap),
    476476        // hence, the schema for blocks & elements should not have them.
    477         $styles_non_top_level = self::VALID_STYLES;
     477        $styles_non_top_level = static::VALID_STYLES;
    478478        foreach ( array_keys( $styles_non_top_level ) as $section ) {
    479479            foreach ( array_keys( $styles_non_top_level[ $section ] ) as $prop ) {
    … …  
    493493        $schema_settings_blocks = array();
    494494        foreach ( $valid_block_names as $block ) {
    495             $schema_settings_blocks[ $block ]           = self::VALID_SETTINGS;
     495            $schema_settings_blocks[ $block ]           = static::VALID_SETTINGS;
    496496            $schema_styles_blocks[ $block ]             = $styles_non_top_level;
    497497            $schema_styles_blocks[ $block ]['elements'] = $schema_styles_elements;
    498498        }
    499         $schema['styles']             = self::VALID_STYLES;
     499        $schema['styles']             = static::VALID_STYLES;
    500500        $schema['styles']['blocks']   = $schema_styles_blocks;
    501501        $schema['styles']['elements'] = $schema_styles_elements;
    502         $schema['settings']           = self::VALID_SETTINGS;
     502        $schema['settings']           = static::VALID_SETTINGS;
    503503        $schema['settings']['blocks'] = $schema_settings_blocks;
    504504
    … …  
    514514            }
    515515
    516             $result = self::remove_keys_not_in_schema( $input[ $subtree ], $schema[ $subtree ] );
     516            $result = static::remove_keys_not_in_schema( $input[ $subtree ], $schema[ $subtree ] );
    517517
    518518            if ( empty( $result ) ) {
    … …  
    555555     * @return array Block metadata.
    556556     */
    557     private static function get_blocks_metadata() {
    558         if ( null !== self::$blocks_metadata ) {
    559             return self::$blocks_metadata;
    560         }
    561 
    562         self::$blocks_metadata = array();
     557    protected static function get_blocks_metadata() {
     558        if ( null !== static::$blocks_metadata ) {
     559            return static::$blocks_metadata;
     560        }
     561
     562        static::$blocks_metadata = array();
    563563
    564564        $registry = WP_Block_Type_Registry::get_instance();
    … …  
    569569                is_string( $block_type->supports['__experimentalSelector'] )
    570570            ) {
    571                 self::$blocks_metadata[ $block_name ]['selector'] = $block_type->supports['__experimentalSelector'];
     571                static::$blocks_metadata[ $block_name ]['selector'] = $block_type->supports['__experimentalSelector'];
    572572            } else {
    573                 self::$blocks_metadata[ $block_name ]['selector'] = '.wp-block-' . str_replace( '/', '-', str_replace( 'core/', '', $block_name ) );
     573                static::$blocks_metadata[ $block_name ]['selector'] = '.wp-block-' . str_replace( '/', '-', str_replace( 'core/', '', $block_name ) );
    574574            }
    575575
    … …  
    578578                is_string( $block_type->supports['color']['__experimentalDuotone'] )
    579579            ) {
    580                 self::$blocks_metadata[ $block_name ]['duotone'] = $block_type->supports['color']['__experimentalDuotone'];
     580                static::$blocks_metadata[ $block_name ]['duotone'] = $block_type->supports['color']['__experimentalDuotone'];
    581581            }
    582582
    … …  
    584584            // If the block selector is compounded, will append the element to each
    585585            // individual block selector.
    586             $block_selectors = explode( ',', self::$blocks_metadata[ $block_name ]['selector'] );
    587             foreach ( self::ELEMENTS as $el_name => $el_selector ) {
     586            $block_selectors = explode( ',', static::$blocks_metadata[ $block_name ]['selector'] );
     587            foreach ( static::ELEMENTS as $el_name => $el_selector ) {
    588588                $element_selector = array();
    589589                foreach ( $block_selectors as $selector ) {
    590590                    $element_selector[] = $selector . ' ' . $el_selector;
    591591                }
    592                 self::$blocks_metadata[ $block_name ]['elements'][ $el_name ] = implode( ',', $element_selector );
    593             }
    594         }
    595 
    596         return self::$blocks_metadata;
     592                static::$blocks_metadata[ $block_name ]['elements'][ $el_name ] = implode( ',', $element_selector );
     593            }
     594        }
     595
     596        return static::$blocks_metadata;
    597597    }
    598598
    … …  
    608608     * @return array Returns the modified $tree.
    609609     */
    610     private static function remove_keys_not_in_schema( $tree, $schema ) {
     610    protected static function remove_keys_not_in_schema( $tree, $schema ) {
    611611        $tree = array_intersect_key( $tree, $schema );
    612612
    … …  
    617617
    618618            if ( is_array( $schema[ $key ] ) && is_array( $tree[ $key ] ) ) {
    619                 $tree[ $key ] = self::remove_keys_not_in_schema( $tree[ $key ], $schema[ $key ] );
     619                $tree[ $key ] = static::remove_keys_not_in_schema( $tree[ $key ], $schema[ $key ] );
    620620
    621621                if ( empty( $tree[ $key ] ) ) {
    … …  
    671671     *                       - `styles`: only the styles section in theme.json.
    672672     *                       - `presets`: only the classes for the presets.
    673      * @param array $origins A list of origins to include. By default it includes `self::VALID_ORIGINS`.
     673     * @param array $origins A list of origins to include. By default it includes VALID_ORIGINS.
    674674     * @return string Stylesheet.
    675675     */
    676     public function get_stylesheet( $types = array( 'variables', 'styles', 'presets' ), $origins = self::VALID_ORIGINS ) {
     676    public function get_stylesheet( $types = array( 'variables', 'styles', 'presets' ), $origins = null ) {
     677        if ( null === $origins ) {
     678            $origins = static::VALID_ORIGINS;
     679        }
     680
    677681        if ( is_string( $types ) ) {
    678682            // Dispatch error and map old arguments to new ones.
    … …  
    687691        }
    688692
    689         $blocks_metadata = self::get_blocks_metadata();
    690         $style_nodes     = self::get_style_nodes( $this->theme_json, $blocks_metadata );
    691         $setting_nodes   = self::get_setting_nodes( $this->theme_json, $blocks_metadata );
     693        $blocks_metadata = static::get_blocks_metadata();
     694        $style_nodes     = static::get_style_nodes( $this->theme_json, $blocks_metadata );
     695        $setting_nodes   = static::get_setting_nodes( $this->theme_json, $blocks_metadata );
    692696
    693697        $stylesheet = '';
    … …  
    776780     * @return string The new stylesheet.
    777781     */
    778     private function get_block_classes( $style_nodes ) {
     782    protected function get_block_classes( $style_nodes ) {
    779783        $block_rules = '';
    780784
    … …  
    787791            $selector     = $metadata['selector'];
    788792            $settings     = _wp_array_get( $this->theme_json, array( 'settings' ) );
    789             $declarations = self::compute_style_properties( $node, $settings );
     793            $declarations = static::compute_style_properties( $node, $settings );
    790794
    791795            // 1. Separate the ones who use the general selector
    … …  
    807811             * @link https://github.com/WordPress/gutenberg/issues/36147.
    808812             */
    809             if ( self::ROOT_BLOCK_SELECTOR === $selector ) {
     813            if ( static::ROOT_BLOCK_SELECTOR === $selector ) {
    810814                $block_rules .= 'body { margin: 0; }';
    811815            }
    812816
    813817            // 2. Generate the rules that use the general selector.
    814             $block_rules .= self::to_ruleset( $selector, $declarations );
     818            $block_rules .= static::to_ruleset( $selector, $declarations );
    815819
    816820            // 3. Generate the rules that use the duotone selector.
    817821            if ( isset( $metadata['duotone'] ) && ! empty( $declarations_duotone ) ) {
    818                 $selector_duotone = self::scope_selector( $metadata['selector'], $metadata['duotone'] );
    819                 $block_rules     .= self::to_ruleset( $selector_duotone, $declarations_duotone );
    820             }
    821 
    822             if ( self::ROOT_BLOCK_SELECTOR === $selector ) {
     822                $selector_duotone = static::scope_selector( $metadata['selector'], $metadata['duotone'] );
     823                $block_rules     .= static::to_ruleset( $selector_duotone, $declarations_duotone );
     824            }
     825
     826            if ( static::ROOT_BLOCK_SELECTOR === $selector ) {
    823827                $block_rules .= '.wp-site-blocks > .alignleft { float: left; margin-right: 2em; }';
    824828                $block_rules .= '.wp-site-blocks > .alignright { float: right; margin-left: 2em; }';
    … …  
    865869     * @return string The new stylesheet.
    866870     */
    867     private function get_preset_classes( $setting_nodes, $origins ) {
     871    protected function get_preset_classes( $setting_nodes, $origins ) {
    868872        $preset_rules = '';
    869873
    … …  
    875879            $selector      = $metadata['selector'];
    876880            $node          = _wp_array_get( $this->theme_json, $metadata['path'], array() );
    877             $preset_rules .= self::compute_preset_classes( $node, $selector, $origins );
     881            $preset_rules .= static::compute_preset_classes( $node, $selector, $origins );
    878882        }
    879883
    … …  
    902906     * @return string The new stylesheet.
    903907     */
    904     private function get_css_variables( $nodes, $origins ) {
     908    protected function get_css_variables( $nodes, $origins ) {
    905909        $stylesheet = '';
    906910        foreach ( $nodes as $metadata ) {
    … …  
    912916
    913917            $node         = _wp_array_get( $this->theme_json, $metadata['path'], array() );
    914             $declarations = array_merge( self::compute_preset_vars( $node, $origins ), self::compute_theme_vars( $node ) );
    915 
    916             $stylesheet .= self::to_ruleset( $selector, $declarations );
     918            $declarations = array_merge( static::compute_preset_vars( $node, $origins ), static::compute_theme_vars( $node ) );
     919
     920            $stylesheet .= static::to_ruleset( $selector, $declarations );
    917921        }
    918922
    … …  
    930934     * @return string CSS ruleset.
    931935     */
    932     private static function to_ruleset( $selector, $declarations ) {
     936    protected static function to_ruleset( $selector, $declarations ) {
    933937        if ( empty( $declarations ) ) {
    934938            return '';
    … …  
    958962     * @return string
    959963     */
    960     private static function append_to_selector( $selector, $to_append ) {
     964    protected static function append_to_selector( $selector, $to_append ) {
    961965        $new_selectors = array();
    962966        $selectors     = explode( ',', $selector );
    … …  
    980984     * @return string The result of processing the presets.
    981985     */
    982     private static function compute_preset_classes( $settings, $selector, $origins ) {
    983         if ( self::ROOT_BLOCK_SELECTOR === $selector ) {
     986    protected static function compute_preset_classes( $settings, $selector, $origins ) {
     987        if ( static::ROOT_BLOCK_SELECTOR === $selector ) {
    984988            // Classes at the global level do not need any CSS prefixed,
    985989            // and we don't want to increase its specificity.
    … …  
    988992
    989993        $stylesheet = '';
    990         foreach ( self::PRESETS_METADATA as $preset_metadata ) {
    991             $slugs = self::get_settings_slugs( $settings, $preset_metadata, $origins );
     994        foreach ( static::PRESETS_METADATA as $preset_metadata ) {
     995            $slugs = static::get_settings_slugs( $settings, $preset_metadata, $origins );
    992996            foreach ( $preset_metadata['classes'] as $class => $property ) {
    993997                foreach ( $slugs as $slug ) {
    994                     $css_var     = self::replace_slug_in_string( $preset_metadata['css_vars'], $slug );
    995                     $class_name  = self::replace_slug_in_string( $class, $slug );
    996                     $stylesheet .= self::to_ruleset(
    997                         self::append_to_selector( $selector, $class_name ),
     998                    $css_var     = static::replace_slug_in_string( $preset_metadata['css_vars'], $slug );
     999                    $class_name  = static::replace_slug_in_string( $class, $slug );
     1000                    $stylesheet .= static::to_ruleset(
     1001                        static::append_to_selector( $selector, $class_name ),
    9981002                        array(
    9991003                            array(
    … …  
    10271031     * @return string Scoped selector.
    10281032     */
    1029     private static function scope_selector( $scope, $selector ) {
     1033    protected static function scope_selector( $scope, $selector ) {
    10301034        $scopes    = explode( ',', $scope );
    10311035        $selectors = explode( ',', $selector );
    … …  
    10771081     * @return array Array of presets where each key is a slug and each value is the preset value.
    10781082     */
    1079     private static function get_settings_values_by_slug( $settings, $preset_metadata, $origins ) {
     1083    protected static function get_settings_values_by_slug( $settings, $preset_metadata, $origins ) {
    10801084        $preset_per_origin = _wp_array_get( $settings, $preset_metadata['path'], array() );
    10811085
    … …  
    11191123     * @return array Array of presets where the key and value are both the slug.
    11201124     */
    1121     private static function get_settings_slugs( $settings, $preset_metadata, $origins = self::VALID_ORIGINS ) {
     1125    protected static function get_settings_slugs( $settings, $preset_metadata, $origins = null ) {
     1126        if ( null === $origins ) {
     1127            $origins = static::VALID_ORIGINS;
     1128        }
     1129
    11221130        $preset_per_origin = _wp_array_get( $settings, $preset_metadata['path'], array() );
    11231131
    … …  
    11461154     * @return string The CSS Custom Property. Something along the lines of `--wp--preset--color--black`.
    11471155     */
    1148     private static function replace_slug_in_string( $input, $slug ) {
     1156    protected static function replace_slug_in_string( $input, $slug ) {
    11491157        return strtr( $input, array( '$slug' => $slug ) );
    11501158    }
    … …  
    11671175     * @return array Returns the modified $declarations.
    11681176     */
    1169     private static function compute_preset_vars( $settings, $origins ) {
     1177    protected static function compute_preset_vars( $settings, $origins ) {
    11701178        $declarations = array();
    1171         foreach ( self::PRESETS_METADATA as $preset_metadata ) {
    1172             $values_by_slug = self::get_settings_values_by_slug( $settings, $preset_metadata, $origins );
     1179        foreach ( static::PRESETS_METADATA as $preset_metadata ) {
     1180            $values_by_slug = static::get_settings_values_by_slug( $settings, $preset_metadata, $origins );
    11731181            foreach ( $values_by_slug as $slug => $value ) {
    11741182                $declarations[] = array(
    1175                     'name'  => self::replace_slug_in_string( $preset_metadata['css_vars'], $slug ),
     1183                    'name'  => static::replace_slug_in_string( $preset_metadata['css_vars'], $slug ),
    11761184                    'value' => $value,
    11771185                );
    … …  
    11971205     * @return array Returns the modified $declarations.
    11981206     */
    1199     private static function compute_theme_vars( $settings ) {
     1207    protected static function compute_theme_vars( $settings ) {
    12001208        $declarations  = array();
    12011209        $custom_values = _wp_array_get( $settings, array( 'custom' ), array() );
    1202         $css_vars      = self::flatten_tree( $custom_values );
     1210        $css_vars      = static::flatten_tree( $custom_values );
    12031211        foreach ( $css_vars as $key => $value ) {
    12041212            $declarations[] = array(
    … …  
    12481256     * @return array The flattened tree.
    12491257     */
    1250     private static function flatten_tree( $tree, $prefix = '', $token = '--' ) {
     1258    protected static function flatten_tree( $tree, $prefix = '', $token = '--' ) {
    12511259        $result = array();
    12521260        foreach ( $tree as $property => $value ) {
    … …  
    12611269                $result     = array_merge(
    12621270                    $result,
    1263                     self::flatten_tree( $value, $new_prefix, $token )
     1271                    static::flatten_tree( $value, $new_prefix, $token )
    12641272                );
    12651273            } else {
    … …  
    12871295     * @return array Returns the modified $declarations.
    12881296     */
    1289     private static function compute_style_properties( $styles, $settings = array(), $properties = self::PROPERTIES_METADATA ) {
     1297    protected static function compute_style_properties( $styles, $settings = array(), $properties = null ) {
     1298        if ( null === $properties ) {
     1299            $properties = static::PROPERTIES_METADATA;
     1300        }
     1301
    12901302        $declarations = array();
    12911303        if ( empty( $styles ) ) {
    … …  
    12941306
    12951307        foreach ( $properties as $css_property => $value_path ) {
    1296             $value = self::get_property_value( $styles, $value_path );
     1308            $value = static::get_property_value( $styles, $value_path );
    12971309
    12981310            // Look up protected properties, keyed by value path.
    … …  
    13011313                $path_string = implode( '.', $value_path );
    13021314                if (
    1303                     array_key_exists( $path_string, self::PROTECTED_PROPERTIES ) &&
    1304                     _wp_array_get( $settings, self::PROTECTED_PROPERTIES[ $path_string ], null ) === null
     1315                    array_key_exists( $path_string, static::PROTECTED_PROPERTIES ) &&
     1316                    _wp_array_get( $settings, static::PROTECTED_PROPERTIES[ $path_string ], null ) === null
    13051317                ) {
    13061318                    continue;
    … …  
    13371349     * @return string|array Style property value.
    13381350     */
    1339     private static function get_property_value( $styles, $path ) {
     1351    protected static function get_property_value( $styles, $path ) {
    13401352        $value = _wp_array_get( $styles, $path, '' );
    13411353
    … …  
    13801392     * @return array
    13811393     */
    1382     private static function get_setting_nodes( $theme_json, $selectors = array() ) {
     1394    protected static function get_setting_nodes( $theme_json, $selectors = array() ) {
    13831395        $nodes = array();
    13841396        if ( ! isset( $theme_json['settings'] ) ) {
    … …  
    13891401        $nodes[] = array(
    13901402            'path'     => array( 'settings' ),
    1391             'selector' => self::ROOT_BLOCK_SELECTOR,
     1403            'selector' => static::ROOT_BLOCK_SELECTOR,
    13921404        );
    13931405
    … …  
    14341446     * @return array
    14351447     */
    1436     private static function get_style_nodes( $theme_json, $selectors = array() ) {
     1448    protected static function get_style_nodes( $theme_json, $selectors = array() ) {
    14371449        $nodes = array();
    14381450        if ( ! isset( $theme_json['styles'] ) ) {
    … …  
    14431455        $nodes[] = array(
    14441456            'path'     => array( 'styles' ),
    1445             'selector' => self::ROOT_BLOCK_SELECTOR,
     1457            'selector' => static::ROOT_BLOCK_SELECTOR,
    14461458        );
    14471459
    … …  
    14501462                $nodes[] = array(
    14511463                    'path'     => array( 'styles', 'elements', $element ),
    1452                     'selector' => self::ELEMENTS[ $element ],
     1464                    'selector' => static::ELEMENTS[ $element ],
    14531465                );
    14541466            }
    … …  
    15241536         * we remove it from the theme presets.
    15251537         */
    1526         $nodes        = self::get_setting_nodes( $incoming_data );
    1527         $slugs_global = self::get_default_slugs( $this->theme_json, array( 'settings' ) );
     1538        $nodes        = static::get_setting_nodes( $incoming_data );
     1539        $slugs_global = static::get_default_slugs( $this->theme_json, array( 'settings' ) );
    15281540        foreach ( $nodes as $node ) {
    1529             $slugs_node = self::get_default_slugs( $this->theme_json, $node['path'] );
     1541            $slugs_node = static::get_default_slugs( $this->theme_json, $node['path'] );
    15301542            $slugs      = array_merge_recursive( $slugs_global, $slugs_node );
    15311543
    … …  
    15381550
    15391551            // Replace the presets.
    1540             foreach ( self::PRESETS_METADATA as $preset ) {
    1541                 $override_preset = self::should_override_preset( $this->theme_json, $node['path'], $preset['override'] );
    1542 
    1543                 foreach ( self::VALID_ORIGINS as $origin ) {
     1552            foreach ( static::PRESETS_METADATA as $preset ) {
     1553                $override_preset = static::should_override_preset( $this->theme_json, $node['path'], $preset['override'] );
     1554
     1555                foreach ( static::VALID_ORIGINS as $origin ) {
    15441556                    $base_path = array_merge( $node['path'], $preset['path'] );
    15451557                    $path      = array_merge( $base_path, array( $origin ) );
    … …  
    15521564                        foreach ( $content as &$item ) {
    15531565                            if ( ! array_key_exists( 'name', $item ) ) {
    1554                                 $name = self::get_name_from_defaults( $item['slug'], $base_path );
     1566                                $name = static::get_name_from_defaults( $item['slug'], $base_path );
    15551567                                if ( null !== $name ) {
    15561568                                    $item['name'] = $name;
    … …  
    15671579                    } else {
    15681580                        $slugs_for_preset = _wp_array_get( $slugs, $preset['path'], array() );
    1569                         $content          = self::filter_slugs( $content, $slugs_for_preset );
     1581                        $content          = static::filter_slugs( $content, $slugs_for_preset );
    15701582                        _wp_array_set( $this->theme_json, $path, $content );
    15711583                    }
    … …  
    15851597     * @return boolean
    15861598     */
    1587     private static function should_override_preset( $theme_json, $path, $override ) {
     1599    protected static function should_override_preset( $theme_json, $path, $override ) {
    15881600        if ( is_bool( $override ) ) {
    15891601            return $override;
    … …  
    16371649     * @return array
    16381650     */
    1639     private static function get_default_slugs( $data, $node_path ) {
     1651    protected static function get_default_slugs( $data, $node_path ) {
    16401652        $slugs = array();
    16411653
    1642         foreach ( self::PRESETS_METADATA as $metadata ) {
     1654        foreach ( static::PRESETS_METADATA as $metadata ) {
    16431655            $path   = array_merge( $node_path, $metadata['path'], array( 'default' ) );
    16441656            $preset = _wp_array_get( $data, $path, null );
    … …  
    16691681     * @return string|null
    16701682     */
    1671     private function get_name_from_defaults( $slug, $base_path ) {
     1683    protected function get_name_from_defaults( $slug, $base_path ) {
    16721684        $path            = array_merge( $base_path, array( 'default' ) );
    16731685        $default_content = _wp_array_get( $this->theme_json, $path, null );
    … …  
    16921704     * @return array The new node.
    16931705     */
    1694     private static function filter_slugs( $node, $slugs ) {
     1706    protected static function filter_slugs( $node, $slugs ) {
    16951707        if ( empty( $slugs ) ) {
    16961708            return $node;
    … …  
    17201732        $theme_json = WP_Theme_JSON_Schema::migrate( $theme_json );
    17211733
    1722         $valid_block_names   = array_keys( self::get_blocks_metadata() );
    1723         $valid_element_names = array_keys( self::ELEMENTS );
    1724         $theme_json          = self::sanitize( $theme_json, $valid_block_names, $valid_element_names );
    1725 
    1726         $blocks_metadata = self::get_blocks_metadata();
    1727         $style_nodes     = self::get_style_nodes( $theme_json, $blocks_metadata );
     1734        $valid_block_names   = array_keys( static::get_blocks_metadata() );
     1735        $valid_element_names = array_keys( static::ELEMENTS );
     1736        $theme_json          = static::sanitize( $theme_json, $valid_block_names, $valid_element_names );
     1737
     1738        $blocks_metadata = static::get_blocks_metadata();
     1739        $style_nodes     = static::get_style_nodes( $theme_json, $blocks_metadata );
    17281740        foreach ( $style_nodes as $metadata ) {
    17291741            $input = _wp_array_get( $theme_json, $metadata['path'], array() );
    … …  
    17321744            }
    17331745
    1734             $output = self::remove_insecure_styles( $input );
     1746            $output = static::remove_insecure_styles( $input );
    17351747            if ( ! empty( $output ) ) {
    17361748                _wp_array_set( $sanitized, $metadata['path'], $output );
    … …  
    17381750        }
    17391751
    1740         $setting_nodes = self::get_setting_nodes( $theme_json );
     1752        $setting_nodes = static::get_setting_nodes( $theme_json );
    17411753        foreach ( $setting_nodes as $metadata ) {
    17421754            $input = _wp_array_get( $theme_json, $metadata['path'], array() );
    … …  
    17451757            }
    17461758
    1747             $output = self::remove_insecure_settings( $input );
     1759            $output = static::remove_insecure_settings( $input );
    17481760            if ( ! empty( $output ) ) {
    17491761                _wp_array_set( $sanitized, $metadata['path'], $output );
    … …  
    17751787     * @return array
    17761788     */
    1777     private static function remove_insecure_settings( $input ) {
     1789    protected static function remove_insecure_settings( $input ) {
    17781790        $output = array();
    1779         foreach ( self::PRESETS_METADATA as $preset_metadata ) {
    1780             foreach ( self::VALID_ORIGINS as $origin ) {
     1791        foreach ( static::PRESETS_METADATA as $preset_metadata ) {
     1792            foreach ( static::VALID_ORIGINS as $origin ) {
    17811793                $path_with_origin = array_merge( $preset_metadata['path'], array( $origin ) );
    17821794                $presets          = _wp_array_get( $input, $path_with_origin, null );
    … …  
    18031815                        $preset_is_valid = true;
    18041816                        foreach ( $preset_metadata['properties'] as $property ) {
    1805                             if ( ! self::is_safe_css_declaration( $property, $value ) ) {
     1817                            if ( ! static::is_safe_css_declaration( $property, $value ) ) {
    18061818                                $preset_is_valid = false;
    18071819                                break;
    … …  
    18321844     * @return array
    18331845     */
    1834     private static function remove_insecure_styles( $input ) {
     1846    protected static function remove_insecure_styles( $input ) {
    18351847        $output       = array();
    1836         $declarations = self::compute_style_properties( $input );
     1848        $declarations = static::compute_style_properties( $input );
    18371849
    18381850        foreach ( $declarations as $declaration ) {
    1839             if ( self::is_safe_css_declaration( $declaration['name'], $declaration['value'] ) ) {
    1840                 $path = self::PROPERTIES_METADATA[ $declaration['name'] ];
     1851            if ( static::is_safe_css_declaration( $declaration['name'], $declaration['value'] ) ) {
     1852                $path = static::PROPERTIES_METADATA[ $declaration['name'] ];
    18411853
    18421854                // Check the value isn't an array before adding so as to not
    … …  
    18601872     * @return bool
    18611873     */
    1862     private static function is_safe_css_declaration( $property_name, $property_value ) {
     1874    protected static function is_safe_css_declaration( $property_name, $property_value ) {
    18631875        $style_to_validate = $property_name . ': ' . $property_value;
    18641876        $filtered          = esc_html( safecss_filter_attr( $style_to_validate ) );
    … …  
    18881900    public static function get_from_editor_settings( $settings ) {
    18891901        $theme_settings = array(
    1890             'version'  => self::LATEST_SCHEMA,
     1902            'version'  => static::LATEST_SCHEMA,
    18911903            'settings' => array(),
    18921904        );
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