Ticket #46195: 46195.6.diff

src/wp-admin/edit-form-advanced.php

@@ -18 +18 @@
  */
 global $post_type, $post_type_object, $post;
 
+// Flag that we're not loading the block editor.
+$current_screen = get_current_screen();
+$current_screen->is_block_editor( false );
+
 if ( is_multisite() ) {
         add_action( 'admin_footer', '_admin_notice_post_locked' );
 } else {

src/wp-admin/includes/class-wp-screen.php

@@ -202 +202 @@
                         return $hook_name;
                 }
 
-                $post_type = $taxonomy = null;
-                $in_admin  = false;
-                $action    = '';
+                $post_type       = $taxonomy = null;
+                $in_admin        = false;
+                $action          = '';
+                $is_block_editor = false;
 
                 if ( $hook_name ) {
                         $id = $hook_name;
@@ -294 +295 @@
                                                 $post = get_post( $post_id );
                                                 if ( $post ) {
                                                         $post_type = $post->post_type;
+
+                                                        $replace_editor = apply_filters( 'replace_editor', false, $post );
+
+                                                        if ( ! $replace_editor ) {
+                                                                $is_block_editor = use_block_editor_for_post( $post );
+                                                        }
                                                 }
                                         }
                                         break;
@@ -314 +321 @@
                                 if ( null === $post_type ) {
                                         $post_type = 'post';
                                 }
+
+                                // When creating a new post, use the default block editor support value for the post type.
+                                if ( empty( $post_id ) ) {
+                                        $is_block_editor = use_block_editor_for_post_type( $post_type );
+                                }
+
                                 $id = $post_type;
                                 break;
                         case 'edit':
@@ -357 +370 @@
                         $screen->id = $id;
                 }
 
-                $screen->base       = $base;
-                $screen->action     = $action;
-                $screen->post_type  = (string) $post_type;
-                $screen->taxonomy   = (string) $taxonomy;
-                $screen->is_user    = ( 'user' == $in_admin );
-                $screen->is_network = ( 'network' == $in_admin );
-                $screen->in_admin   = $in_admin;
+                $screen->base            = $base;
+                $screen->action          = $action;
+                $screen->post_type       = (string) $post_type;
+                $screen->taxonomy        = (string) $taxonomy;
+                $screen->is_user         = ( 'user' == $in_admin );
+                $screen->is_network      = ( 'network' == $in_admin );
+                $screen->in_admin        = $in_admin;
+                $screen->is_block_editor = $is_block_editor;
 
                 self::$_registry[ $id ] = $screen;
 

src/wp-admin/post-new.php

@@ -74 +74 @@
                 wp_enqueue_script( 'autosave' );
                 include( ABSPATH . 'wp-admin/edit-form-advanced.php' );
         }
+} else {
+        // Flag that we're not loading the block editor.
+        $current_screen = get_current_screen();
+        $current_screen->is_block_editor( false );
 }
 
 include( ABSPATH . 'wp-admin/admin-footer.php' );