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<?php
/**
* Jetpack Assets package.
*
* @package automattic/jetpack-assets
*/
namespace Automattic\Jetpack;
use Automattic\Jetpack\Assets\Semver;
use Automattic\Jetpack\Constants as Jetpack_Constants;
use InvalidArgumentException;
/**
* Class Assets
*/
class Assets {
/**
* Holds all the scripts handles that should be loaded in a deferred fashion.
*
* @var array
*/
private $defer_script_handles = array();
/**
* The singleton instance of this class.
*
* @var Assets
*/
protected static $instance;
/**
* The registered textdomain mappings.
*
* @var array `array( mapped_domain => array( string target_domain, string target_type, string semver, string path_prefix ) )`.
*/
private static $domain_map = array();
/**
* Constructor.
*
* Static-only class, so nothing here.
*/
private function __construct() {}
// ////////////////////
// region Async script loading
/**
* Get the singleton instance of the class.
*
* @return Assets
*/
public static function instance() {
if ( ! isset( self::$instance ) ) {
self::$instance = new Assets();
self::$instance->init_hooks();
}
return self::$instance;
}
/**
* Initalize the hooks as needed.
*/
private function init_hooks() {
/*
* Load some scripts asynchronously.
*/
add_filter( 'script_loader_tag', array( $this, 'script_add_async' ), 10, 2 );
}
/**
* A public method for adding the async script.
*
* @param string $script_handle Script handle.
*/
public function add_async_script( $script_handle ) {
$this->defer_script_handles[] = $script_handle;
}
/**
* Add an async attribute to scripts that can be loaded deferred.
* https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script
*
* @param string $tag The <script> tag for the enqueued script.
* @param string $handle The script's registered handle.
*/
public function script_add_async( $tag, $handle ) {
if ( empty( $this->defer_script_handles ) ) {
return $tag;
}
if ( in_array( $handle, $this->defer_script_handles, true ) ) {
// phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedScript
return preg_replace( '/<script( [^>]*)? src=/i', '<script defer$1 src=', $tag );
}
return $tag;
}
/**
* A helper function that lets you enqueue scripts in an async fashion.
*
* @param string $handle Name of the script. Should be unique.
* @param string $min_path Minimized script path.
* @param string $non_min_path Full Script path.
* @param array $deps Array of script dependencies.
* @param bool $ver The script version.
* @param bool $in_footer Should the script be included in the footer.
*/
public static function enqueue_async_script( $handle, $min_path, $non_min_path, $deps = array(), $ver = false, $in_footer = true ) {
$assets_instance = self::instance();
$assets_instance->add_async_script( $handle );
wp_enqueue_script( $handle, self::get_file_url_for_environment( $min_path, $non_min_path ), $deps, $ver, $in_footer );
}
// endregion .
// ////////////////////
// region Utils
/**
* Given a minified path, and a non-minified path, will return
* a minified or non-minified file URL based on whether SCRIPT_DEBUG is set and truthy.
*
* If $package_path is provided, then the minified or non-minified file URL will be generated
* relative to the root package directory.
*
* Both `$min_base` and `$non_min_base` can be either full URLs, or are expected to be relative to the
* root Jetpack directory.
*
* @param string $min_path minified path.
* @param string $non_min_path non-minified path.
* @param string $package_path Optional. A full path to a file inside a package directory
* The URL will be relative to its directory. Default empty.
* Typically this is done by passing __FILE__ as the argument.
*
* @return string The URL to the file
* @since 1.0.3
* @since-jetpack 5.6.0
*/
public static function get_file_url_for_environment( $min_path, $non_min_path, $package_path = '' ) {
$path = ( Jetpack_Constants::is_defined( 'SCRIPT_DEBUG' ) && Jetpack_Constants::get_constant( 'SCRIPT_DEBUG' ) )
? $non_min_path
: $min_path;
/*
* If the path is actually a full URL, keep that.
* We look for a host value, since enqueues are sometimes without a scheme.
*/
$file_parts = wp_parse_url( $path );
if ( ! empty( $file_parts['host'] ) ) {
$url = $path;
} else {
$plugin_path = empty( $package_path ) ? Jetpack_Constants::get_constant( 'JETPACK__PLUGIN_FILE' ) : $package_path;
$url = plugins_url( $path, $plugin_path );
}
/**
* Filters the URL for a file passed through the get_file_url_for_environment function.
*
* @since 1.0.3
*
* @package assets
*
* @param string $url The URL to the file.
* @param string $min_path The minified path.
* @param string $non_min_path The non-minified path.
*/
return apply_filters( 'jetpack_get_file_for_environment', $url, $min_path, $non_min_path );
}
/**
* Passes an array of URLs to wp_resource_hints.
*
* @since 1.5.0
*
* @param string|array $urls URLs to hint.
* @param string $type One of the supported resource types: dns-prefetch (default), preconnect, prefetch, or prerender.
*/
public static function add_resource_hint( $urls, $type = 'dns-prefetch' ) {
add_filter(
'wp_resource_hints',
function ( $hints, $resource_type ) use ( $urls, $type ) {
if ( $resource_type === $type ) {
// Type casting to array required since the function accepts a single string.
foreach ( (array) $urls as $url ) {
$hints[] = $url;
}
}
return $hints;
},
10,
2
);
}
/**
* Serve a WordPress.com static resource via a randomized wp.com subdomain.
*
* @since 1.9.0
*
* @param string $url WordPress.com static resource URL.
*
* @return string $url
*/
public static function staticize_subdomain( $url ) {
// Extract hostname from URL.
$host = wp_parse_url( $url, PHP_URL_HOST );
// Explode hostname on '.'.
$exploded_host = explode( '.', $host );
// Retrieve the name and TLD.
if ( count( $exploded_host ) > 1 ) {
$name = $exploded_host[ count( $exploded_host ) - 2 ];
$tld = $exploded_host[ count( $exploded_host ) - 1 ];
// Rebuild domain excluding subdomains.
$domain = $name . '.' . $tld;
} else {
$domain = $host;
}
// Array of Automattic domains.
$domains_allowed = array( 'wordpress.com', 'wp.com' );
// Return $url if not an Automattic domain.
if ( ! in_array( $domain, $domains_allowed, true ) ) {
return $url;
}
if ( \is_ssl() ) {
return preg_replace( '|https?://[^/]++/|', 'https://s-ssl.wordpress.com/', $url );
}
/*
* Generate a random subdomain id by taking the modulus of the crc32 value of the URL.
* Valid values are 0, 1, and 2.
*/
$static_counter = abs( crc32( basename( $url ) ) % 3 );
return preg_replace( '|://[^/]+?/|', "://s$static_counter.wp.com/", $url );
}
/**
* Resolve '.' and '..' components in a path or URL.
*
* @since 1.12.0
* @param string $path Path or URL.
* @return string Normalized path or URL.
*/
public static function normalize_path( $path ) {
$parts = wp_parse_url( $path );
if ( ! isset( $parts['path'] ) ) {
return $path;
}
$ret = '';
$ret .= isset( $parts['scheme'] ) ? $parts['scheme'] . '://' : '';
if ( isset( $parts['user'] ) || isset( $parts['pass'] ) ) {
$ret .= isset( $parts['user'] ) ? $parts['user'] : '';
$ret .= isset( $parts['pass'] ) ? ':' . $parts['pass'] : '';
$ret .= '@';
}
$ret .= isset( $parts['host'] ) ? $parts['host'] : '';
$ret .= isset( $parts['port'] ) ? ':' . $parts['port'] : '';
$pp = explode( '/', $parts['path'] );
if ( '' === $pp[0] ) {
$ret .= '/';
array_shift( $pp );
}
$i = 0;
while ( $i < count( $pp ) ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
if ( '' === $pp[ $i ] || '.' === $pp[ $i ] || 0 === $i && '..' === $pp[ $i ] ) {
array_splice( $pp, $i, 1 );
} elseif ( '..' === $pp[ $i ] ) {
array_splice( $pp, --$i, 2 );
} else {
$i++;
}
}
$ret .= join( '/', $pp );
$ret .= isset( $parts['query'] ) ? '?' . $parts['query'] : '';
$ret .= isset( $parts['fragment'] ) ? '#' . $parts['fragment'] : '';
return $ret;
}
// endregion .
// ////////////////////
// region Webpack-built script registration
/**
* Register a Webpack-built script.
*
* Our Webpack-built scripts tend to need a bunch of boilerplate:
* - A call to `Assets::get_file_url_for_environment()` for possible debugging.
* - A call to `wp_register_style()` for extracted CSS, possibly with detection of RTL.
* - Loading of dependencies and version provided by `@wordpress/dependency-extraction-webpack-plugin`.
* - Avoiding WPCom's broken minifier.
*
* This wrapper handles all of that.
*
* @since 1.12.0
* @param string $handle Name of the script. Should be unique across both scripts and styles.
* @param string $path Minimized script path.
* @param string $relative_to File that `$path` is relative to. Pass `__FILE__`.
* @param array $options Additional options:
* - `asset_path`: (string|null) `.asset.php` to load. Default is to base it on `$path`.
* - `async`: (bool) Set true to register the script as async, like `Assets::enqueue_async_script()`
* - `css_dependencies`: (string[]) Additional style dependencies to queue.
* - `css_path`: (string|null) `.css` to load. Default is to base it on `$path`.
* - `dependencies`: (string[]) Additional script dependencies to queue.
* - `enqueue`: (bool) Set true to enqueue the script immediately.
* - `in_footer`: (bool) Set true to register script for the footer.
* - `media`: (string) Media for the css file. Default 'all'.
* - `minify`: (bool|null) Set true to pass `minify=true` in the query string, or `null` to suppress the normal `minify=false`.
* - `nonmin_path`: (string) Non-minified script path.
* - `textdomain`: (string) Text domain for the script. Required if the script depends on wp-i18n.
* - `version`: (string) Override the version from the `asset_path` file.
* @throws \InvalidArgumentException If arguments are invalid.
*/
public static function register_script( $handle, $path, $relative_to, array $options = array() ) {
if ( substr( $path, -3 ) !== '.js' ) {
throw new \InvalidArgumentException( '$path must end in ".js"' );
}
$dir = dirname( $relative_to );
$base = substr( $path, 0, -3 );
$options += array(
'asset_path' => "$base.asset.php",
'async' => false,
'css_dependencies' => array(),
'css_path' => "$base.css",
'dependencies' => array(),
'enqueue' => false,
'in_footer' => false,
'media' => 'all',
'minify' => false,
'textdomain' => null,
);
if ( $options['css_path'] && substr( $options['css_path'], -4 ) !== '.css' ) {
throw new \InvalidArgumentException( '$options[\'css_path\'] must end in ".css"' );
}
if ( isset( $options['nonmin_path'] ) ) {
$url = self::get_file_url_for_environment( $path, $options['nonmin_path'], $relative_to );
} else {
$url = plugins_url( $path, $relative_to );
}
$url = self::normalize_path( $url );
if ( null !== $options['minify'] ) {
$url = add_query_arg( 'minify', $options['minify'] ? 'true' : 'false', $url );
}
if ( $options['asset_path'] && file_exists( "$dir/{$options['asset_path']}" ) ) {
$asset = require "$dir/{$options['asset_path']}"; // phpcs:ignore WordPressVIPMinimum.Files.IncludingFile.NotAbsolutePath
$options['dependencies'] = array_merge( $asset['dependencies'], $options['dependencies'] );
$options['css_dependencies'] = array_merge(
array_filter(
$asset['dependencies'],
function ( $d ) {
return wp_style_is( $d, 'registered' );
}
),
$options['css_dependencies']
);
$ver = isset( $options['version'] ) ? $options['version'] : $asset['version'];
} else {
$ver = isset( $options['version'] ) ? $options['version'] : filemtime( "$dir/$path" );
}
wp_register_script( $handle, $url, $options['dependencies'], $ver, $options['in_footer'] );
if ( $options['async'] ) {
self::instance()->add_async_script( $handle );
}
if ( $options['textdomain'] ) {
// phpcs:ignore Jetpack.Functions.I18n.DomainNotLiteral
wp_set_script_translations( $handle, $options['textdomain'] );
} elseif ( in_array( 'wp-i18n', $options['dependencies'], true ) ) {
_doing_it_wrong(
__METHOD__,
/* translators: %s is the script handle. */
esc_html( sprintf( __( 'Script "%s" depends on wp-i18n but does not specify "textdomain"', 'jetpack-assets' ), $handle ) ),
''
);
}
if ( $options['css_path'] && file_exists( "$dir/{$options['css_path']}" ) ) {
$csspath = $options['css_path'];
if ( is_rtl() ) {
$rtlcsspath = substr( $csspath, 0, -4 ) . '.rtl.css';
if ( file_exists( "$dir/$rtlcsspath" ) ) {
$csspath = $rtlcsspath;
}
}
$url = self::normalize_path( plugins_url( $csspath, $relative_to ) );
if ( null !== $options['minify'] ) {
$url = add_query_arg( 'minify', $options['minify'] ? 'true' : 'false', $url );
}
wp_register_style( $handle, $url, $options['css_dependencies'], $ver, $options['media'] );
wp_script_add_data( $handle, 'Jetpack::Assets::hascss', true );
} else {
wp_script_add_data( $handle, 'Jetpack::Assets::hascss', false );
}
if ( $options['enqueue'] ) {
self::enqueue_script( $handle );
}
}
/**
* Enqueue a script registered with `Assets::register_script`.
*
* @since 1.12.0
* @param string $handle Name of the script. Should be unique across both scripts and styles.
*/
public static function enqueue_script( $handle ) {
wp_enqueue_script( $handle );
if ( wp_scripts()->get_data( $handle, 'Jetpack::Assets::hascss' ) ) {
wp_enqueue_style( $handle );
}
}
/**
* 'wp_default_scripts' action handler.
*
* This registers the `wp-jp-i18n-loader` script for use by Webpack bundles built with
* `@automattic/i18n-loader-webpack-plugin`.
*
* @since 1.14.0
* @param \WP_Scripts $wp_scripts WP_Scripts instance.
*/
public static function wp_default_scripts_hook( $wp_scripts ) {
$data = array(
'baseUrl' => false,
'locale' => determine_locale(),
'domainMap' => array(),
'domainPaths' => array(),
);
$lang_dir = Jetpack_Constants::get_constant( 'WP_LANG_DIR' );
$content_dir = Jetpack_Constants::get_constant( 'WP_CONTENT_DIR' );
$abspath = Jetpack_Constants::get_constant( 'ABSPATH' );
if ( strpos( $lang_dir, $content_dir ) === 0 ) {
$data['baseUrl'] = content_url( substr( trailingslashit( $lang_dir ), strlen( trailingslashit( $content_dir ) ) ) );
} elseif ( strpos( $lang_dir, $abspath ) === 0 ) {
$data['baseUrl'] = site_url( substr( trailingslashit( $lang_dir ), strlen( untrailingslashit( $abspath ) ) ) );
}
foreach ( self::$domain_map as $from => list( $to, $type, , $path ) ) {
$data['domainMap'][ $from ] = ( 'core' === $type ? '' : "{$type}/" ) . $to;
if ( '' !== $path ) {
$data['domainPaths'][ $from ] = trailingslashit( $path );
}
}
/**
* Filters the i18n state data for use by Webpack bundles built with
* `@automattic/i18n-loader-webpack-plugin`.
*
* @since 1.14.0
* @package assets
* @param array $data The state data to generate. Expected fields are:
* - `baseUrl`: (string|false) The URL to the languages directory. False if no URL could be determined.
* - `locale`: (string) The locale for the page.
* - `domainMap`: (string[]) A mapping from Composer package textdomains to the corresponding
* `plugins/textdomain` or `themes/textdomain` (or core `textdomain`, but that's unlikely).
* - `domainPaths`: (string[]) A mapping from Composer package textdomains to the corresponding package
* paths.
*/
$data = apply_filters( 'jetpack_i18n_state', $data );
// Can't use self::register_script(), this action is called too early.
if ( file_exists( __DIR__ . '/../build/i18n-loader.asset.php' ) ) {
$path = '../build/i18n-loader.js';
$asset = require __DIR__ . '/../build/i18n-loader.asset.php';
} else {
$path = 'js/i18n-loader.js';
$asset = array(
'dependencies' => array( 'wp-i18n' ),
'version' => filemtime( __DIR__ . "/$path" ),
);
}
$url = self::normalize_path( plugins_url( $path, __FILE__ ) );
$url = add_query_arg( 'minify', 'true', $url );
$wp_scripts->add( 'wp-jp-i18n-loader', $url, $asset['dependencies'], $asset['version'] );
if ( ! is_array( $data ) ||
! isset( $data['baseUrl'] ) || ! ( is_string( $data['baseUrl'] ) || false === $data['baseUrl'] ) ||
! isset( $data['locale'] ) || ! is_string( $data['locale'] ) ||
! isset( $data['domainMap'] ) || ! is_array( $data['domainMap'] ) ||
! isset( $data['domainPaths'] ) || ! is_array( $data['domainPaths'] )
) {
$wp_scripts->add_inline_script( 'wp-jp-i18n-loader', 'console.warn( "I18n state deleted by jetpack_i18n_state hook" );' );
} elseif ( ! $data['baseUrl'] ) {
$wp_scripts->add_inline_script( 'wp-jp-i18n-loader', 'console.warn( "Failed to determine languages base URL. Is WP_LANG_DIR in the WordPress root?" );' );
} else {
$data['domainMap'] = (object) $data['domainMap']; // Ensure it becomes a json object.
$data['domainPaths'] = (object) $data['domainPaths']; // Ensure it becomes a json object.
$wp_scripts->add_inline_script( 'wp-jp-i18n-loader', 'wp.jpI18nLoader.state = ' . wp_json_encode( $data, JSON_UNESCAPED_SLASHES ) . ';' );
}
// Deprecated state module: Depend on wp-i18n to ensure global `wp` exists and because anything needing this will need that too.
$wp_scripts->add( 'wp-jp-i18n-state', null, array( 'wp-deprecated', 'wp-jp-i18n-loader' ) );
$wp_scripts->add_inline_script( 'wp-jp-i18n-state', 'wp.deprecated( "wp-jp-i18n-state", { alternative: "wp-jp-i18n-loader" } );' );
$wp_scripts->add_inline_script( 'wp-jp-i18n-state', 'wp.jpI18nState = wp.jpI18nLoader.state;' );
}
// endregion .
// ////////////////////
// region Textdomain aliasing
/**
* Register a textdomain alias.
*
* Composer packages included in plugins will likely not use the textdomain of the plugin, while
* WordPress's i18n infrastructure will include the translations in the plugin's domain. This
* allows for mapping the package's domain to the plugin's.
*
* Since multiple plugins may use the same package, we include the package's version here so
* as to choose the most recent translations (which are most likely to match the package
* selected by jetpack-autoloader).
*
* @since 1.15.0
* @param string $from Domain to alias.
* @param string $to Domain to alias it to.
* @param string $totype What is the target of the alias: 'plugins', 'themes', or 'core'.
* @param string $ver Version of the `$from` domain.
* @param string $path Path to prepend when lazy-loading from JavaScript.
* @throws InvalidArgumentException If arguments are invalid.
*/
public static function alias_textdomain( $from, $to, $totype, $ver, $path = '' ) {
if ( ! in_array( $totype, array( 'plugins', 'themes', 'core' ), true ) ) {
throw new InvalidArgumentException( 'Type must be "plugins", "themes", or "core"' );
}
if (
did_action( 'wp_default_scripts' ) &&
// Don't complain during plugin activation.
! defined( 'WP_SANDBOX_SCRAPING' )
) {
_doing_it_wrong(
__METHOD__,
sprintf(
/* translators: 1: wp_default_scripts. 2: Name of the domain being aliased. */
esc_html__( 'Textdomain aliases should be registered before the %1$s hook. This notice was triggered by the %2$s domain.', 'jetpack-assets' ),
'<code>wp_default_scripts</code>',
'<code>' . esc_html( $from ) . '</code>'
),
''
);
}
if ( empty( self::$domain_map[ $from ] ) ) {
self::init_domain_map_hooks( $from, array() === self::$domain_map );
self::$domain_map[ $from ] = array( $to, $totype, $ver, $path );
} elseif ( Semver::compare( $ver, self::$domain_map[ $from ][2] ) > 0 ) {
self::$domain_map[ $from ] = array( $to, $totype, $ver, $path );
}
}
/**
* Register textdomain aliases from a mapping file.
*
* The mapping file is simply a PHP file that returns an array
* with the following properties:
* - 'domain': String, `$to`
* - 'type': String, `$totype`
* - 'packages': Array, mapping `$from` to `array( 'path' => $path, 'ver' => $ver )` (or to the string `$ver` for back compat).
*
* @since 1.15.0
* @param string $file Mapping file.
*/
public static function alias_textdomains_from_file( $file ) {
$data = require $file;
foreach ( $data['packages'] as $from => $fromdata ) {
if ( ! is_array( $fromdata ) ) {
$fromdata = array(
'path' => '',
'ver' => $fromdata,
);
}
self::alias_textdomain( $from, $data['domain'], $data['type'], $fromdata['ver'], $fromdata['path'] );
}
}
/**
* Register the hooks for textdomain aliasing.
*
* @param string $domain Domain to alias.
* @param bool $firstcall If this is the first call.
*/
private static function init_domain_map_hooks( $domain, $firstcall ) {
// If WordPress's plugin API is available already, use it. If not,
// drop data into `$wp_filter` for `WP_Hook::build_preinitialized_hooks()`.
if ( function_exists( 'add_filter' ) ) {
$add_filter = 'add_filter';
} else {
$add_filter = function ( $hook_name, $callback, $priority = 10, $accepted_args = 1 ) {
global $wp_filter;
// phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
$wp_filter[ $hook_name ][ $priority ][] = array(
'accepted_args' => $accepted_args,
'function' => $callback,
);
};
}
$add_filter( "gettext_{$domain}", array( self::class, 'filter_gettext' ), 10, 3 );
$add_filter( "ngettext_{$domain}", array( self::class, 'filter_ngettext' ), 10, 5 );
$add_filter( "gettext_with_context_{$domain}", array( self::class, 'filter_gettext_with_context' ), 10, 4 );
$add_filter( "ngettext_with_context_{$domain}", array( self::class, 'filter_ngettext_with_context' ), 10, 6 );
if ( $firstcall ) {
$add_filter( 'load_script_translation_file', array( self::class, 'filter_load_script_translation_file' ), 10, 3 );
}
}
/**
* Filter for `gettext`.
*
* @since 1.15.0
* @param string $translation Translated text.
* @param string $text Text to translate.
* @param string $domain Text domain.
* @return string Translated text.
*/
public static function filter_gettext( $translation, $text, $domain ) {
if ( $translation === $text ) {
// phpcs:ignore WordPress.WP.I18n
$newtext = __( $text, self::$domain_map[ $domain ][0] );
if ( $newtext !== $text ) {
return $newtext;
}
}
return $translation;
}
/**
* Filter for `ngettext`.
*
* @since 1.15.0
* @param string $translation Translated text.
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param string $number The number to compare against to use either the singular or plural form.
* @param string $domain Text domain.
* @return string Translated text.
*/
public static function filter_ngettext( $translation, $single, $plural, $number, $domain ) {
if ( $translation === $single || $translation === $plural ) {
// phpcs:ignore WordPress.WP.I18n
$translation = _n( $single, $plural, $number, self::$domain_map[ $domain ][0] );
}
return $translation;
}
/**
* Filter for `gettext_with_context`.
*
* @since 1.15.0
* @param string $translation Translated text.
* @param string $text Text to translate.
* @param string $context Context information for the translators.
* @param string $domain Text domain.
* @return string Translated text.
*/
public static function filter_gettext_with_context( $translation, $text, $context, $domain ) {
if ( $translation === $text ) {
// phpcs:ignore WordPress.WP.I18n
$translation = _x( $text, $context, self::$domain_map[ $domain ][0] );
}
return $translation;
}
/**
* Filter for `ngettext_with_context`.
*
* @since 1.15.0
* @param string $translation Translated text.
* @param string $single The text to be used if the number is singular.
* @param string $plural The text to be used if the number is plural.
* @param string $number The number to compare against to use either the singular or plural form.
* @param string $context Context information for the translators.
* @param string $domain Text domain.
* @return string Translated text.
*/
public static function filter_ngettext_with_context( $translation, $single, $plural, $number, $context, $domain ) {
if ( $translation === $single || $translation === $plural ) {
// phpcs:ignore WordPress.WP.I18n
$translation = _nx( $single, $plural, $number, $context, self::$domain_map[ $domain ][0] );
}
return $translation;
}
/**
* Filter for `load_script_translation_file`.
*
* @since 1.15.0
* @param string|false $file Path to the translation file to load. False if there isn't one.
* @param string $handle Name of the script to register a translation domain to.
* @param string $domain The text domain.
*/
public static function filter_load_script_translation_file( $file, $handle, $domain ) {
if ( false !== $file && isset( self::$domain_map[ $domain ] ) && ! is_readable( $file ) ) {
// Determine the part of the filename after the domain.
$suffix = basename( $file );
$l = strlen( $domain );
if ( substr( $suffix, 0, $l ) !== $domain || '-' !== $suffix[ $l ] ) {
return $file;
}
$suffix = substr( $suffix, $l );
$lang_dir = Jetpack_Constants::get_constant( 'WP_LANG_DIR' );
// Look for replacement files.
list( $newdomain, $type ) = self::$domain_map[ $domain ];
$newfile = $lang_dir . ( 'core' === $type ? '/' : "/{$type}/" ) . $newdomain . $suffix;
if ( is_readable( $newfile ) ) {
return $newfile;
}
}
return $file;
}
// endregion .
}
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