Changeset 60003

Timestamp:

03/17/2025 01:01:24 PM (2 months ago)

Author:

joemcgill

Message:

Editor: Support site preview mode for the Site Editor.

This allows the Site Editor to load a preview of the site as an IFRAME_REQUEST by checking for a wp_site_preview query param. By setting the IFRAME_REQUEST constant when loading the preview, the site's admin bar and some third party plugin overlays will not be shown in the preview.

Props wildworks, joemcgill, peterwilsoncc, presstoke, mamaduka, johnbillion, faisal03.
Fixes #63076.

Location:

trunk/src/wp-includes

Files:

• block-editor.php (modified) (1 diff)
• default-filters.php (modified) (1 diff)

trunk/src/wp-includes/block-editor.php

@@ -857 +857 @@
     return $theme_settings;
 }
+
+/**
+ * Initialize site preview.
+ *
+ * This function sets IFRAME_REQUEST to true if the site preview parameter is set.
+ *
+ * @since 6.8.0
+ */
+function wp_initialize_site_preview_hooks() {
+    if (
+        ! defined( 'IFRAME_REQUEST' ) &&
+        isset( $_GET['wp_site_preview'] ) &&
+        1 === (int) $_GET['wp_site_preview'] &&
+        current_user_can( 'edit_theme_options' )
+    ) {
+        define( 'IFRAME_REQUEST', true );
+    }
+}

trunk/src/wp-includes/default-filters.php

@@ -552 +552 @@
 add_action( 'plugins_loaded', 'wp_initialize_theme_preview_hooks', 1 );
 
+// Site preview for Classic Theme.
+add_action( 'init', 'wp_initialize_site_preview_hooks', 1 );
+
 // Calendar widget cache.
 add_action( 'save_post', 'delete_get_calendar_cache' );