363 lines
11 KiB
PHP
363 lines
11 KiB
PHP
<?php
|
|
/**
|
|
* Process the different data sources for site-level
|
|
* config and offers and API to work with them.
|
|
*
|
|
* @package WordPress
|
|
*/
|
|
|
|
/**
|
|
* Class that abstracts the processing
|
|
* of the different data sources.
|
|
*
|
|
* @access private
|
|
*/
|
|
class WP_Theme_JSON_Resolver {
|
|
|
|
/**
|
|
* Container for data coming from core.
|
|
*
|
|
* @var WP_Theme_JSON
|
|
*/
|
|
private static $core = null;
|
|
|
|
/**
|
|
* Container for data coming from the theme.
|
|
*
|
|
* @var WP_Theme_JSON
|
|
*/
|
|
private static $theme = null;
|
|
|
|
/**
|
|
* Whether or not the theme supports theme.json.
|
|
*
|
|
* @var boolean
|
|
*/
|
|
private static $theme_has_support = null;
|
|
|
|
/**
|
|
* Structure to hold i18n metadata.
|
|
*
|
|
* @var Array
|
|
*/
|
|
private static $theme_json_i18n = null;
|
|
|
|
/**
|
|
* Processes a file that adheres to the theme.json
|
|
* schema and returns an array with its contents,
|
|
* or a void array if none found.
|
|
*
|
|
* @param string $file_path Path to file. Empty if no file.
|
|
*
|
|
* @return array Contents that adhere to the theme.json schema.
|
|
*/
|
|
private static function read_json_file( $file_path ) {
|
|
$config = array();
|
|
if ( $file_path ) {
|
|
$decoded_file = json_decode(
|
|
file_get_contents( $file_path ),
|
|
true
|
|
);
|
|
|
|
$json_decoding_error = json_last_error();
|
|
if ( JSON_ERROR_NONE !== $json_decoding_error ) {
|
|
error_log( 'Error when decoding file schema: ' . json_last_error_msg() );
|
|
return $config;
|
|
}
|
|
|
|
if ( is_array( $decoded_file ) ) {
|
|
$config = $decoded_file;
|
|
}
|
|
}
|
|
return $config;
|
|
}
|
|
|
|
/**
|
|
* Converts a tree as in i18n-theme.json into a linear array
|
|
* containing metadata to translate a theme.json file.
|
|
*
|
|
* For example, given this input:
|
|
*
|
|
* {
|
|
* "settings": {
|
|
* "*": {
|
|
* "typography": {
|
|
* "fontSizes": [ { "name": "Font size name" } ],
|
|
* "fontStyles": [ { "name": "Font size name" } ]
|
|
* }
|
|
* }
|
|
* }
|
|
* }
|
|
*
|
|
* will return this output:
|
|
*
|
|
* [
|
|
* 0 => [
|
|
* 'path' => [ 'settings', '*', 'typography', 'fontSizes' ],
|
|
* 'key' => 'name',
|
|
* 'context' => 'Font size name'
|
|
* ],
|
|
* 1 => [
|
|
* 'path' => [ 'settings', '*', 'typography', 'fontStyles' ],
|
|
* 'key' => 'name',
|
|
* 'context' => 'Font style name'
|
|
* ]
|
|
* ]
|
|
*
|
|
* @param array $i18n_partial A tree that follows the format of i18n-theme.json.
|
|
* @param array $current_path Keeps track of the path as we walk down the given tree.
|
|
*
|
|
* @return array A linear array containing the paths to translate.
|
|
*/
|
|
private static function extract_paths_to_translate( $i18n_partial, $current_path = array() ) {
|
|
$result = array();
|
|
foreach ( $i18n_partial as $property => $partial_child ) {
|
|
if ( is_numeric( $property ) ) {
|
|
foreach ( $partial_child as $key => $context ) {
|
|
return array(
|
|
array(
|
|
'path' => $current_path,
|
|
'key' => $key,
|
|
'context' => $context,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
$result = array_merge(
|
|
$result,
|
|
self::extract_paths_to_translate( $partial_child, array_merge( $current_path, array( $property ) ) )
|
|
);
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Returns a data structure used in theme.json translation.
|
|
*
|
|
* @return array An array of theme.json fields that are translatable and the keys that are translatable
|
|
*/
|
|
public static function get_fields_to_translate() {
|
|
if ( null === self::$theme_json_i18n ) {
|
|
$file_structure = self::read_json_file( __DIR__ . '/theme-i18n.json' );
|
|
self::$theme_json_i18n = self::extract_paths_to_translate( $file_structure );
|
|
}
|
|
return self::$theme_json_i18n;
|
|
}
|
|
|
|
/**
|
|
* Translates a chunk of the loaded theme.json structure.
|
|
*
|
|
* @param array $array_to_translate The chunk of theme.json to translate.
|
|
* @param string $key The key of the field that contains the string to translate.
|
|
* @param string $context The context to apply in the translation call.
|
|
* @param string $domain Text domain. Unique identifier for retrieving translated strings.
|
|
*
|
|
* @return array Returns the modified $theme_json chunk.
|
|
*/
|
|
private static function translate_theme_json_chunk( array $array_to_translate, $key, $context, $domain ) {
|
|
foreach ( $array_to_translate as $item_key => $item_to_translate ) {
|
|
if ( empty( $item_to_translate[ $key ] ) ) {
|
|
continue;
|
|
}
|
|
|
|
// phpcs:ignore WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText,WordPress.WP.I18n.NonSingularStringLiteralContext,WordPress.WP.I18n.NonSingularStringLiteralDomain
|
|
$array_to_translate[ $item_key ][ $key ] = translate_with_gettext_context( $array_to_translate[ $item_key ][ $key ], $context, $domain );
|
|
}
|
|
|
|
return $array_to_translate;
|
|
}
|
|
|
|
/**
|
|
* Given a theme.json structure modifies it in place
|
|
* to update certain values by its translated strings
|
|
* according to the language set by the user.
|
|
*
|
|
* @param array $theme_json The theme.json to translate.
|
|
* @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings.
|
|
* Default 'default'.
|
|
*
|
|
* @return array Returns the modified $theme_json_structure.
|
|
*/
|
|
private static function translate( $theme_json, $domain = 'default' ) {
|
|
$fields = self::get_fields_to_translate();
|
|
foreach ( $fields as $field ) {
|
|
$path = $field['path'];
|
|
$key = $field['key'];
|
|
$context = $field['context'];
|
|
|
|
/*
|
|
* We need to process the paths that include '*' separately.
|
|
* One example of such a path would be:
|
|
* [ 'settings', 'blocks', '*', 'color', 'palette' ]
|
|
*/
|
|
$nodes_to_iterate = array_keys( $path, '*', true );
|
|
if ( ! empty( $nodes_to_iterate ) ) {
|
|
/*
|
|
* At the moment, we only need to support one '*' in the path, so take it directly.
|
|
* - base will be [ 'settings', 'blocks' ]
|
|
* - data will be [ 'color', 'palette' ]
|
|
*/
|
|
$base_path = array_slice( $path, 0, $nodes_to_iterate[0] );
|
|
$data_path = array_slice( $path, $nodes_to_iterate[0] + 1 );
|
|
$base_tree = _wp_array_get( $theme_json, $base_path, array() );
|
|
foreach ( $base_tree as $node_name => $node_data ) {
|
|
$array_to_translate = _wp_array_get( $node_data, $data_path, null );
|
|
if ( is_null( $array_to_translate ) ) {
|
|
continue;
|
|
}
|
|
|
|
// Whole path will be [ 'settings', 'blocks', 'core/paragraph', 'color', 'palette' ].
|
|
$whole_path = array_merge( $base_path, array( $node_name ), $data_path );
|
|
$translated_array = self::translate_theme_json_chunk( $array_to_translate, $key, $context, $domain );
|
|
_wp_array_set( $theme_json, $whole_path, $translated_array );
|
|
}
|
|
} else {
|
|
$array_to_translate = _wp_array_get( $theme_json, $path, null );
|
|
if ( is_null( $array_to_translate ) ) {
|
|
continue;
|
|
}
|
|
|
|
$translated_array = self::translate_theme_json_chunk( $array_to_translate, $key, $context, $domain );
|
|
_wp_array_set( $theme_json, $path, $translated_array );
|
|
}
|
|
}
|
|
|
|
return $theme_json;
|
|
}
|
|
|
|
/**
|
|
* Return core's origin config.
|
|
*
|
|
* @return WP_Theme_JSON Entity that holds core data.
|
|
*/
|
|
public static function get_core_data() {
|
|
if ( null !== self::$core ) {
|
|
return self::$core;
|
|
}
|
|
|
|
$config = self::read_json_file( __DIR__ . '/theme.json' );
|
|
$config = self::translate( $config );
|
|
self::$core = new WP_Theme_JSON( $config );
|
|
|
|
return self::$core;
|
|
}
|
|
|
|
/**
|
|
* Returns the theme's data.
|
|
*
|
|
* Data from theme.json can be augmented via the
|
|
* $theme_support_data variable. This is useful, for example,
|
|
* to backfill the gaps in theme.json that a theme has declared
|
|
* via add_theme_supports.
|
|
*
|
|
* Note that if the same data is present in theme.json
|
|
* and in $theme_support_data, the theme.json's is not overwritten.
|
|
*
|
|
* @param array $theme_support_data Theme support data in theme.json format.
|
|
*
|
|
* @return WP_Theme_JSON Entity that holds theme data.
|
|
*/
|
|
public static function get_theme_data( $theme_support_data = array() ) {
|
|
if ( null === self::$theme ) {
|
|
$theme_json_data = self::read_json_file( self::get_file_path_from_theme( 'theme.json' ) );
|
|
$theme_json_data = self::translate( $theme_json_data, wp_get_theme()->get( 'TextDomain' ) );
|
|
self::$theme = new WP_Theme_JSON( $theme_json_data );
|
|
}
|
|
|
|
if ( empty( $theme_support_data ) ) {
|
|
return self::$theme;
|
|
}
|
|
|
|
/*
|
|
* We want the presets and settings declared in theme.json
|
|
* to override the ones declared via add_theme_support.
|
|
*/
|
|
$with_theme_supports = new WP_Theme_JSON( $theme_support_data );
|
|
$with_theme_supports->merge( self::$theme );
|
|
|
|
return $with_theme_supports;
|
|
}
|
|
|
|
/**
|
|
* There are different sources of data for a site:
|
|
* core and theme.
|
|
*
|
|
* While the getters {@link get_core_data},
|
|
* {@link get_theme_data} return the raw data
|
|
* from the respective origins, this method merges them
|
|
* all together.
|
|
*
|
|
* If the same piece of data is declared in different origins (core and theme),
|
|
* the last origin overrides the previous. For example,
|
|
* if core disables custom colors but a theme enables them,
|
|
* the theme config wins.
|
|
*
|
|
* @param array $settings Existing block editor settings.
|
|
* Empty array by default.
|
|
*
|
|
* @return WP_Theme_JSON
|
|
*/
|
|
public static function get_merged_data( $settings = array() ) {
|
|
$theme_support_data = WP_Theme_JSON::get_from_editor_settings( $settings );
|
|
|
|
$result = new WP_Theme_JSON();
|
|
$result->merge( self::get_core_data() );
|
|
$result->merge( self::get_theme_data( $theme_support_data ) );
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Whether the current theme has a theme.json file.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public static function theme_has_support() {
|
|
if ( ! isset( self::$theme_has_support ) ) {
|
|
self::$theme_has_support = (bool) self::get_file_path_from_theme( 'theme.json' );
|
|
}
|
|
|
|
return self::$theme_has_support;
|
|
}
|
|
|
|
/**
|
|
* Builds the path to the given file
|
|
* and checks that it is readable.
|
|
*
|
|
* If it isn't, returns an empty string,
|
|
* otherwise returns the whole file path.
|
|
*
|
|
* @param string $file_name Name of the file.
|
|
* @return string The whole file path or empty if the file doesn't exist.
|
|
*/
|
|
private static function get_file_path_from_theme( $file_name ) {
|
|
// This used to be a locate_template call.
|
|
// However, that method proved problematic
|
|
// due to its use of constants (STYLESHEETPATH)
|
|
// that threw errors in some scenarios.
|
|
//
|
|
// When the theme.json merge algorithm properly supports
|
|
// child themes, this should also fallback
|
|
// to the template path, as locate_template did.
|
|
$located = '';
|
|
$candidate = get_stylesheet_directory() . '/' . $file_name;
|
|
if ( is_readable( $candidate ) ) {
|
|
$located = $candidate;
|
|
}
|
|
return $located;
|
|
}
|
|
|
|
/**
|
|
* Cleans the cached data so it can be recalculated.
|
|
*/
|
|
public static function clean_cached_data() {
|
|
self::$core = null;
|
|
self::$theme = null;
|
|
self::$theme_has_support = null;
|
|
self::$theme_json_i18n = null;
|
|
}
|
|
|
|
}
|
|
|
|
add_action( 'switch_theme', array( 'WP_Theme_JSON_Resolver', 'clean_cached_data' ) );
|