From 723a2c718e232e209e488af58575f6a98523fab4 Mon Sep 17 00:00:00 2001
From: Jonny Harris <jon@spacedmonkey.co.uk>
Date: Thu, 4 Nov 2021 10:14:51 +0000
Subject: [PATCH 1/2] Respect fields param for REST API requests.

---
 ...utenberg-rest-global-styles-controller.php | 66 +++++++++++++++----
 1 file changed, 54 insertions(+), 12 deletions(-)

diff --git a/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php b/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php
index a516eeef730ca1..2611593b49388b 100644
--- a/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php
+++ b/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php
@@ -218,18 +218,46 @@ protected function prepare_item_for_database( $request ) {
 	public function prepare_item_for_response( $post, $request ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
 		$config                           = json_decode( $post->post_content, true );
 		$is_global_styles_user_theme_json = isset( $config['isGlobalStylesUserThemeJSON'] ) && true === $config['isGlobalStylesUserThemeJSON'];
-		$result                           = array(
-			'id'       => $post->ID,
-			'settings' => ! empty( $config['settings'] ) && $is_global_styles_user_theme_json ? $config['settings'] : new stdClass(),
-			'styles'   => ! empty( $config['styles'] ) && $is_global_styles_user_theme_json ? $config['styles'] : new stdClass(),
-			'title'    => array(
-				'raw'      => $post->post_title,
-				'rendered' => get_the_title( $post ),
-			),
-		);
-		$result                           = $this->add_additional_fields_to_object( $result, $request );
-		$response                         = rest_ensure_response( $result );
-		$links                            = $this->prepare_links( $post->id );
+
+		$fields = $this->get_fields_for_response( $request );
+
+		// Base fields for every post.
+		$data = array();
+
+		if ( rest_is_field_included( 'id', $fields ) ) {
+			$data['id'] = $post->ID;
+		}
+
+		if ( rest_is_field_included( 'title', $fields ) ) {
+			$data['title'] = array();
+		}
+		if ( rest_is_field_included( 'title.raw', $fields ) ) {
+			$data['title']['raw'] = $post->post_title;
+		}
+		if ( rest_is_field_included( 'title.rendered', $fields ) ) {
+			add_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
+
+			$data['title']['rendered'] = get_the_title( $post->ID );
+
+			remove_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
+		}
+
+		if ( rest_is_field_included( 'settings', $fields ) ) {
+			$data['settings'] = ! empty( $config['settings'] ) && $is_global_styles_user_theme_json ? $config['settings'] : new stdClass();
+		}
+
+		if ( rest_is_field_included( 'styles', $fields ) ) {
+			$data['styles'] = ! empty( $config['styles'] ) && $is_global_styles_user_theme_json ? $config['styles'] : new stdClass();
+		}
+
+		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
+		$data    = $this->add_additional_fields_to_object( $data, $request );
+		$data    = $this->filter_response_by_context( $data, $context );
+
+		// Wrap the data in a response object.
+		$response = rest_ensure_response( $data );
+
+		$links = $this->prepare_links( $post->ID );
 		$response->add_links( $links );
 		if ( ! empty( $links['self']['href'] ) ) {
 			$actions = $this->get_available_actions();
@@ -280,6 +308,20 @@ protected function get_available_actions() {
 		return $rels;
 	}
 
+	/**
+	 * Overwrites the default protected title format.
+	 *
+	 * By default, WordPress will show password protected posts with a title of
+	 * "Protected: %s", as the REST API communicates the protected status of a post
+	 * in a machine readable format, we remove the "Protected: " prefix.
+	 *
+	 *
+	 * @return string Protected title format.
+	 */
+	public function protected_title_format() {
+		return '%s';
+	}
+
 	/**
 	 * Retrieves the query params for the global styles collection.
 	 *

From 71fd2385d661051c1b56fa275d5d34b43b410df8 Mon Sep 17 00:00:00 2001
From: Jonny Harris <jon@spacedmonkey.co.uk>
Date: Thu, 4 Nov 2021 10:32:45 +0000
Subject: [PATCH 2/2] Fix lint

---
 .../class-gutenberg-rest-global-styles-controller.php            | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php b/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php
index 2611593b49388b..e2b2af15dd3c1f 100644
--- a/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php
+++ b/lib/compat/wordpress-5.9/class-gutenberg-rest-global-styles-controller.php
@@ -315,7 +315,6 @@ protected function get_available_actions() {
 	 * "Protected: %s", as the REST API communicates the protected status of a post
 	 * in a machine readable format, we remove the "Protected: " prefix.
 	 *
-	 *
 	 * @return string Protected title format.
 	 */
 	public function protected_title_format() {