From d83e14e86cdb3b658a8fb9cefe05350e4e14c904 Mon Sep 17 00:00:00 2001
From: scruffian <ben@scruffian.com>
Date: Thu, 7 Sep 2023 11:58:02 +0100
Subject: [PATCH 1/4] Theme Previews: Make the back button customizable

---
 lib/compat/wordpress-6.4/theme-previews.php   | 23 +++++++++++++++++++
 lib/load.php                                  |  1 +
 .../sidebar-navigation-screen/index.js        |  6 +----
 3 files changed, 25 insertions(+), 5 deletions(-)
 create mode 100644 lib/compat/wordpress-6.4/theme-previews.php

diff --git a/lib/compat/wordpress-6.4/theme-previews.php b/lib/compat/wordpress-6.4/theme-previews.php
new file mode 100644
index 00000000000000..fd633d6bb139a0
--- /dev/null
+++ b/lib/compat/wordpress-6.4/theme-previews.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Enable theme previews in the Site Editor for block themes.
+ *
+ * @package gutenberg
+ */
+
+/**
+ * Allow developers to customize the back to dashboard link in the Site Editor
+ *
+ * @param array $settings The editor settings.
+ * @return array The editor settings.
+ */
+
+function gutenberg_theme_preview_block_editor_settings_all( $settings ) {
+	$settings['__experimentalDashboardLink'] = 'themes.php';
+	return $settings;
+}
+
+// Attaches filters to enable theme previews in the Site Editor.
+if ( ! empty( $_GET['wp_theme_preview'] ) ) {
+	add_filter( 'block_editor_settings_all', 'gutenberg_theme_preview_block_editor_settings_all' );
+}
diff --git a/lib/load.php b/lib/load.php
index 51a6500396650c..74731f36b6623e 100644
--- a/lib/load.php
+++ b/lib/load.php
@@ -53,6 +53,7 @@ function gutenberg_is_experiment_enabled( $name ) {
 	// WordPress 6.4 compat.
 	require_once __DIR__ . '/compat/wordpress-6.4/class-gutenberg-rest-global-styles-revisions-controller-6-4.php';
 	require_once __DIR__ . '/compat/wordpress-6.4/rest-api.php';
+	require_once __DIR__ . '/compat/wordpress-6.4/theme-previews.php';
 
 	// Plugin specific code.
 	require_once __DIR__ . '/class-wp-rest-global-styles-controller-gutenberg.php';
diff --git a/packages/edit-site/src/components/sidebar-navigation-screen/index.js b/packages/edit-site/src/components/sidebar-navigation-screen/index.js
index f8824332f51528..d395da4f83abb4 100644
--- a/packages/edit-site/src/components/sidebar-navigation-screen/index.js
+++ b/packages/edit-site/src/components/sidebar-navigation-screen/index.js
@@ -96,11 +96,7 @@ export default function SidebarNavigationScreen( {
 									? __( 'Go to the Dashboard' )
 									: __( 'Go back to the theme showcase' )
 							}
-							href={
-								! isPreviewingTheme()
-									? dashboardLink || 'index.php'
-									: 'themes.php'
-							}
+							href={ dashboardLink || 'index.php' }
 						/>
 					) }
 					<Heading

From 0fbdccde43a20a3c51c0e9f4af418961bec83835 Mon Sep 17 00:00:00 2001
From: okmttdhr <okmttdhr@users.noreply.github.com>
Date: Tue, 12 Sep 2023 14:43:51 +0900
Subject: [PATCH 2/4] Add a comment about a filter

---
 lib/compat/wordpress-6.4/theme-previews.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/compat/wordpress-6.4/theme-previews.php b/lib/compat/wordpress-6.4/theme-previews.php
index fd633d6bb139a0..d120c57567a94a 100644
--- a/lib/compat/wordpress-6.4/theme-previews.php
+++ b/lib/compat/wordpress-6.4/theme-previews.php
@@ -11,13 +11,16 @@
  * @param array $settings The editor settings.
  * @return array The editor settings.
  */
-
 function gutenberg_theme_preview_block_editor_settings_all( $settings ) {
 	$settings['__experimentalDashboardLink'] = 'themes.php';
 	return $settings;
 }
 
-// Attaches filters to enable theme previews in the Site Editor.
+/**
+ * Attaches filters to enable theme previews in the Site Editor.
+ * This would go inside of `initialize_theme_preview_hooks`
+ * to avoid the global scope when we port this to the core.
+ */
 if ( ! empty( $_GET['wp_theme_preview'] ) ) {
 	add_filter( 'block_editor_settings_all', 'gutenberg_theme_preview_block_editor_settings_all' );
 }

From 04e476771be2eb50c470b0b830c9d5a0a05f6469 Mon Sep 17 00:00:00 2001
From: okmttdhr <okmttdhr@users.noreply.github.com>
Date: Tue, 12 Sep 2023 14:47:29 +0900
Subject: [PATCH 3/4] Theme Previews: Make the backlink text customizable

---
 lib/compat/wordpress-6.4/theme-previews.php                | 1 +
 .../src/components/sidebar-navigation-screen/index.js      | 7 +++----
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/compat/wordpress-6.4/theme-previews.php b/lib/compat/wordpress-6.4/theme-previews.php
index d120c57567a94a..78becbb2f75bab 100644
--- a/lib/compat/wordpress-6.4/theme-previews.php
+++ b/lib/compat/wordpress-6.4/theme-previews.php
@@ -13,6 +13,7 @@
  */
 function gutenberg_theme_preview_block_editor_settings_all( $settings ) {
 	$settings['__experimentalDashboardLink'] = 'themes.php';
+	$settings['__experimentalDashboardLinkText'] = __( 'Go back to the theme showcase' );
 	return $settings;
 }
 
diff --git a/packages/edit-site/src/components/sidebar-navigation-screen/index.js b/packages/edit-site/src/components/sidebar-navigation-screen/index.js
index d395da4f83abb4..9ab6f58c81b212 100644
--- a/packages/edit-site/src/components/sidebar-navigation-screen/index.js
+++ b/packages/edit-site/src/components/sidebar-navigation-screen/index.js
@@ -41,10 +41,11 @@ export default function SidebarNavigationScreen( {
 	description,
 	backPath: backPathProp,
 } ) {
-	const { dashboardLink } = useSelect( ( select ) => {
+	const { dashboardLink, dashboardLinkText } = useSelect( ( select ) => {
 		const { getSettings } = unlock( select( editSiteStore ) );
 		return {
 			dashboardLink: getSettings().__experimentalDashboardLink,
+			dashboardLinkText: getSettings().__experimentalDashboardLinkText,
 		};
 	}, [] );
 	const { getTheme } = useSelect( coreStore );
@@ -92,9 +93,7 @@ export default function SidebarNavigationScreen( {
 						<SidebarButton
 							icon={ icon }
 							label={
-								! isPreviewingTheme()
-									? __( 'Go to the Dashboard' )
-									: __( 'Go back to the theme showcase' )
+								dashboardLinkText || __( 'Go to the Dashboard' )
 							}
 							href={ dashboardLink || 'index.php' }
 						/>

From 14c75accb4e3f701f364ef9e774b11bbbc7041cc Mon Sep 17 00:00:00 2001
From: okmttdhr <okmttdhr@users.noreply.github.com>
Date: Tue, 12 Sep 2023 14:49:58 +0900
Subject: [PATCH 4/4] Fix PHPCS errors

---
 lib/compat/wordpress-6.4/theme-previews.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/compat/wordpress-6.4/theme-previews.php b/lib/compat/wordpress-6.4/theme-previews.php
index 78becbb2f75bab..5755fc992921d4 100644
--- a/lib/compat/wordpress-6.4/theme-previews.php
+++ b/lib/compat/wordpress-6.4/theme-previews.php
@@ -12,7 +12,7 @@
  * @return array The editor settings.
  */
 function gutenberg_theme_preview_block_editor_settings_all( $settings ) {
-	$settings['__experimentalDashboardLink'] = 'themes.php';
+	$settings['__experimentalDashboardLink']     = 'themes.php';
 	$settings['__experimentalDashboardLinkText'] = __( 'Go back to the theme showcase' );
 	return $settings;
 }