Templates: Add "in progress" template and hide content when using tem…

…plate

source/wp-content/themes/wporg-main-2022/inc/page-meta-descriptions.php

@@ -52,6 +52,11 @@ function( $html ) {
 		return $tags;
 	}
 
+	// Prevent content from "leaking" in embeds on pages in progress.
+	if ( 'page-in-progress' === get_post_meta( $post->ID, '_wp_page_template', true ) ) {
+		return [];
+	}
+
 	// These values are not correct for our page templates.
 	unset( $tags['article:published_time'], $tags['article:modified_time'] );
 
@@ -212,3 +217,19 @@ function() {
 		add_post_type_support( 'page', 'excerpt' );
 	}
 );
+
+/**
+ * Fake the `blog_public` option to prevent search engines from indexing pages in progress.
+ *
+ * This setting is used by the `wp_robots_*` functions to add noindex, nofollow meta tags.
+ */
+add_filter(
+	'pre_option_blog_public',
+	function( $pre ) {
+		global $post;
+		if ( $post && 'page-in-progress' === get_post_meta( $post->ID, '_wp_page_template', true ) ) {
+			return 0;
+		}
+		return $pre;
+	}
+);

source/wp-content/themes/wporg-main-2022/templates/page-in-progress.html

@@ -0,0 +1,9 @@
+<!-- wp:wporg/global-header {"textColor":"charcoal-2","backgroundColor":"white"} /-->
+
+<!-- wp:group {"tagName":"main","layout":{"inherit":true},"className":"entry-content","style":{"spacing":{"blockGap":"0px"}}} -->
+<main class="wp-block-group entry-content">
+	<!-- wp:pattern {"slug":"wporg-main-2022/work-in-progress"} /-->
+</main>
+<!-- /wp:group -->
+
+<!-- wp:wporg/global-footer {"textColor":"charcoal-2","backgroundColor":"white"} /-->