Ticket #35057: 35057.1.diff

src/wp-admin/includes/screen.php

@@ -57 +57 @@
 
         $hidden = get_user_option( 'manage' . $screen->id . 'columnshidden' );
 
-        if ( ! $hidden ) {
+        $use_defaults = ! is_array( $hidden );
+
+        if ( $use_defaults ) {
                 $hidden = array();
 
                 /**
@@ -78 +80 @@
          *
          * @param array     $hidden An array of hidden columns.
          * @param WP_Screen $screen WP_Screen object of the current screen.
+         * @param bool      $use_defaults Whether to show the default meta boxes.
+         *                                Default true.
          */
-        return apply_filters( 'hidden_columns', $hidden, $screen );
+        return apply_filters( 'hidden_columns', $hidden, $screen, $use_defaults );
 }
 
 /**
@@ -131 +135 @@
  * @return array Hidden Meta Boxes
  */
 function get_hidden_meta_boxes( $screen ) {
-        if ( is_string( $screen ) )
+        if ( is_string( $screen ) ) {
                 $screen = convert_to_screen( $screen );
+        }
 
-        $hidden = get_user_option( "metaboxhidden_{$screen->id}" );
+        $hidden = get_user_option( 'metaboxhidden_' . $screen->id );
 
         $use_defaults = ! is_array( $hidden );
 
@@ -142 +147 @@
         if ( $use_defaults ) {
                 $hidden = array();
                 if ( 'post' == $screen->base ) {
-                        if ( 'post' == $screen->post_type || 'page' == $screen->post_type || 'attachment' == $screen->post_type )
+                        if ( 'post' == $screen->post_type || 'page' == $screen->post_type || 'attachment' == $screen->post_type ) {
                                 $hidden = array('slugdiv', 'trackbacksdiv', 'postcustom', 'postexcerpt', 'commentstatusdiv', 'commentsdiv', 'authordiv', 'revisionsdiv');
-                        else
+                        } else {
                                 $hidden = array( 'slugdiv' );
+                        }
                 }
 
                 /**