From f33c456925adf3bf2ff1ee61e62653f0086d2c28 Mon Sep 17 00:00:00 2001
From: Tonya Mork <hellofromtonya@git.wordpress.org>
Date: Tue, 7 Dec 2021 20:05:27 +0000
Subject: [PATCH] Themes: Hide "Live Preview" button for FSE block themes.

Currently, the Site Editor does not have a live preview feature for non-activated block themes.

This commit is a stop-gate to remove the "Live Preview" button for those themes. It avoids confusing users and avoiding a notification message that doesn't make sense.

Props antonvlasenko, costdev, hellofromTonya, kafleg, paaljoachim.
Fixes #54578.

git-svn-id: https://develop.svn.wordpress.org/trunk@52341 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-admin/includes/theme.php |  1 +
 src/wp-admin/themes.php         | 12 +++++++-----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/wp-admin/includes/theme.php b/src/wp-admin/includes/theme.php
index ab751689f0..d5c6a549eb 100644
--- a/src/wp-admin/includes/theme.php
+++ b/src/wp-admin/includes/theme.php
@@ -782,6 +782,7 @@ function wp_prepare_themes_for_js( $themes = null ) {
 					? wp_nonce_url( admin_url( 'themes.php?action=' . $auto_update_action . '&amp;stylesheet=' . $encoded_slug ), 'updates' )
 					: null,
 			),
+			'block_theme'    => $theme->is_block_theme(),
 		);
 	}
 
diff --git a/src/wp-admin/themes.php b/src/wp-admin/themes.php
index 9863aa68ae..3ef411bb6c 100644
--- a/src/wp-admin/themes.php
+++ b/src/wp-admin/themes.php
@@ -900,11 +900,13 @@ function wp_theme_auto_update_setting_template() {
 					$aria_label = sprintf( _x( 'Activate %s', 'theme' ), '{{ data.name }}' );
 					?>
 					<a class="button activate" href="{{{ data.actions.activate }}}" aria-label="<?php echo esc_attr( $aria_label ); ?>"><?php _e( 'Activate' ); ?></a>
-					<?php
-					/* translators: %s: Theme name. */
-					$live_preview_aria_label = sprintf( _x( 'Live Preview %s', 'theme' ), '{{ data.name }}' );
-					?>
-					<a aria-label="<?php echo esc_attr( $live_preview_aria_label ); ?>" class="button button-primary load-customize hide-if-no-customize" href="{{{ data.actions.customize }}}"><?php _e( 'Live Preview' ); ?></a>
+					<# if ( ! data.block_theme ) { #>
+						<?php
+						/* translators: %s: Theme name. */
+						$live_preview_aria_label = sprintf( _x( 'Live Preview %s', 'theme' ), '{{ data.name }}' );
+						?>
+						<a aria-label="<?php echo esc_attr( $live_preview_aria_label ); ?>" class="button button-primary load-customize hide-if-no-customize" href="{{{ data.actions.customize }}}"><?php _e( 'Live Preview' ); ?></a>
+					<# } #>
 				<# } else { #>
 					<?php
 					/* translators: %s: Theme name. */