File "class-utils.php"
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Charset: utf-8
<?php
/**
* Google Fonts package Utils class file.
*
* @package automattic/jetpack-google-fonts-provider
*/
namespace Automattic\Jetpack\Fonts;
/**
* Provides utility methods for the Google Fonts Provider package.
*/
class Utils {
/**
* Adds a preconnect link for improving performance when downloading Google Font files.
* Only do so if the site supports the Webfonts API.
*
* @param array $urls Array of resources and their attributes, or URLs to print for resource hints.
* @param string $relation_type The relation type the URLs are printed for, e.g. 'preconnect' or 'prerender'.
*/
public static function font_source_resource_hint( $urls, $relation_type ) {
if (
'preconnect' === $relation_type
&& class_exists( 'WP_Webfonts_Provider' )
) {
$urls[] = array(
'href' => 'https://fonts.gstatic.com',
'crossorigin',
);
}
return $urls;
}
/**
* Check if a font family is registered (verifying that it can be enqueued).
*
* This function will not be needed if/when WP_Webfonts provides this functionality.
*
* @link https://github.com/WordPress/gutenberg/pull/39988
* @link https://github.com/WordPress/gutenberg/blob/e94fffae0684aa5a6dc370ce3eba262cb77071d9/lib/experimental/class-wp-webfonts.php#L217
*
* @param string $font_family_name Name of font family.
* @return boolean|void Whether the font family is registered, or void if WP_Webfonts is not available.
*/
public static function is_font_family_registered( $font_family_name ) {
if ( ! function_exists( 'wp_webfonts' ) || ! method_exists( 'WP_Webfonts', 'get_font_slug' ) ) {
return;
}
$wp_webfonts = wp_webfonts();
$slug = \WP_Webfonts::get_font_slug( $font_family_name );
return isset( $wp_webfonts->get_registered_webfonts()[ $slug ] );
}
}