[gtk/wip/otte/css: 300/307] cssnode: Don't invalidate the parent changes unless necessary

[Benjamin Otte <otte src gnome org>]

commit bd6dad80d5dc808bc74d5a43c2ab044e04dca310
Author: Benjamin Otte <otte redhat com>
Date:   Sun Feb 9 22:10:39 2020 +0100

    cssnode: Don't invalidate the parent changes unless necessary
    
    If old_parent == new_parent, GTK_CSS_CHANGE_ANY_PARENT doesn't need to
    be emitted.

 gtk/gtkcssnode.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkcssnode.c b/gtk/gtkcssnode.c
index aac8df3cc1..9e13e6c058 100644
--- a/gtk/gtkcssnode.c
+++ b/gtk/gtkcssnode.c
@@ -754,7 +754,8 @@ gtk_css_node_reposition (GtkCssNode *node,
 
       if (gtk_css_node_get_style_provider_or_null (node) == NULL)
         gtk_css_node_invalidate_style_provider (node);
-      gtk_css_node_invalidate (node, GTK_CSS_CHANGE_ROOT
+      gtk_css_node_invalidate (node, GTK_CSS_CHANGE_ANY_PARENT
+                                   | GTK_CSS_CHANGE_ROOT
                                    | GTK_CSS_CHANGE_TIMESTAMP
                                    | GTK_CSS_CHANGE_ANIMATIONS);
 
@@ -800,8 +801,7 @@ gtk_css_node_reposition (GtkCssNode *node,
         gtk_css_node_invalidate_style (node->next_sibling);
     }
 
-  gtk_css_node_invalidate (node, GTK_CSS_CHANGE_ANY_PARENT
-                                 | GTK_CSS_CHANGE_ANY_SIBLING
+  gtk_css_node_invalidate (node, GTK_CSS_CHANGE_ANY_SIBLING
                                  | GTK_CSS_CHANGE_NTH_CHILD
                                  | (node->previous_sibling ? 0 : GTK_CSS_CHANGE_FIRST_CHILD)
                                  | (node->next_sibling ? 0 : GTK_CSS_CHANGE_LAST_CHILD));