From 61756c5fa4906e9482632bfe38c084a0ce07071f Mon Sep 17 00:00:00 2001
From: ramon <ramonjd@gmail.com>
Date: Mon, 20 May 2024 14:03:02 -0700
Subject: [PATCH] First commit - sync global styles controller changes from
 https://github.com/WordPress/gutenberg/pull/61271

---
 ...class-wp-rest-global-styles-controller.php | 40 +++++++++++++++++--
 1 file changed, 37 insertions(+), 3 deletions(-)

diff --git a/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php b/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
index 9837f535e268d..f2070632eef69 100644
--- a/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
+++ b/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
@@ -353,6 +353,8 @@ protected function prepare_item_for_database( $request ) {
 	 * Prepare a global styles config output for response.
 	 *
 	 * @since 5.9.0
+	 * @since 6.2.0 Handling of style.css was added to WP_Theme_JSON.
+	 * @since 6.6.0 Added custom relative theme file URIs to `_links`.
 	 *
 	 * @param WP_Post         $post    Global Styles post object.
 	 * @param WP_REST_Request $request Request object.
@@ -362,8 +364,10 @@ public function prepare_item_for_response( $post, $request ) {
 		$raw_config                       = json_decode( $post->post_content, true );
 		$is_global_styles_user_theme_json = isset( $raw_config['isGlobalStylesUserThemeJSON'] ) && true === $raw_config['isGlobalStylesUserThemeJSON'];
 		$config                           = array();
+		$theme_json                       = null;
 		if ( $is_global_styles_user_theme_json ) {
-			$config = ( new WP_Theme_JSON( $raw_config, 'custom' ) )->get_raw_data();
+			$theme_json = new WP_Theme_JSON( $raw_config, 'custom' );
+			$config     = $theme_json->get_raw_data();
 		}
 
 		// Base fields for every post.
@@ -405,6 +409,15 @@ public function prepare_item_for_response( $post, $request ) {
 
 		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
 			$links = $this->prepare_links( $post->ID );
+
+			// Only return resolved URIs for get requests to user theme JSON.
+			if ( $theme_json ) {
+				$resolved_theme_uris = WP_Theme_JSON_Resolver::get_resolved_theme_uris( $theme_json );
+				if ( ! empty( $resolved_theme_uris ) ) {
+					$links['https://api.w.org/theme-file'] = $resolved_theme_uris;
+				}
+			}
+
 			$response->add_links( $links );
 			if ( ! empty( $links['self']['href'] ) ) {
 				$actions = $this->get_available_actions();
@@ -588,6 +601,7 @@ public function get_theme_item_permissions_check( $request ) {
 	 * Returns the given theme global styles config.
 	 *
 	 * @since 5.9.0
+	 * @since 6.6.0 Added custom relative theme file URIs to `_links`.
 	 *
 	 * @param WP_REST_Request $request The request instance.
 	 * @return WP_REST_Response|WP_Error
@@ -622,11 +636,15 @@ public function get_theme_item( $request ) {
 		$response = rest_ensure_response( $data );
 
 		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
-			$links = array(
+			$links               = array(
 				'self' => array(
 					'href' => rest_url( sprintf( '%s/%s/themes/%s', $this->namespace, $this->rest_base, $request['stylesheet'] ) ),
 				),
 			);
+			$resolved_theme_uris = WP_Theme_JSON_Resolver::get_resolved_theme_uris( $theme );
+			if ( ! empty( $resolved_theme_uris ) ) {
+				$links['https://api.w.org/theme-file'] = $resolved_theme_uris;
+			}
 			$response->add_links( $links );
 		}
 
@@ -664,6 +682,7 @@ public function get_theme_items_permissions_check( $request ) {
 	 *
 	 * @since 6.0.0
 	 * @since 6.2.0 Returns parent theme variations, if they exist.
+	 * @since 6.6.0 Added custom relative theme file URIs to `_links` for each item.
 	 *
 	 * @param WP_REST_Request $request The request instance.
 	 *
@@ -679,9 +698,24 @@ public function get_theme_items( $request ) {
 			);
 		}
 
+		$response   = array();
 		$variations = WP_Theme_JSON_Resolver::get_style_variations();
 
-		return rest_ensure_response( $variations );
+		foreach ( $variations as $variation ) {
+			$variation_theme_json = new WP_Theme_JSON( $variation );
+			$resolved_theme_uris  = WP_Theme_JSON_Resolver::get_resolved_theme_uris( $variation_theme_json );
+			$data                 = rest_ensure_response( $variation );
+			if ( ! empty( $resolved_theme_uris ) ) {
+				$data->add_links(
+					array(
+						'https://api.w.org/theme-file' => $resolved_theme_uris,
+					)
+				);
+			}
+			$response[] = $this->prepare_response_for_collection( $data );
+		}
+
+		return rest_ensure_response( $response );
 	}
 
 	/**