csstypes: Change NTH_CHILD and NTH_LAST_CHILD change propagation

For now assume that if those flags change for a node, they also changed
for all sibling nodes. This is not strictly true but simplifies
invalidation.

The reason it simplifies invalidation is that when removing or adding a
node, we can just invalidate the first node (for NTH_LAST_CHILD) and the
new node (for NTH_CHILD) and all the other nodes will be invalidated
automatically.

diff --git a/gtk/gtkcsstypes.c b/gtk/gtkcsstypes.c
index 440f60a7eeaa76b1d4501ff3ad671c1525da3b9a..2fa18df9e8f85cfd2d6be218147c930102208ea6 100644 (file)
--- a/gtk/gtkcsstypes.c
+++ b/gtk/gtkcsstypes.c
@@ -56,8 +56,8 @@ _gtk_css_change_for_sibling (GtkCssChange match)
     { GTK_CSS_CHANGE_NAME, GTK_CSS_CHANGE_SIBLING_NAME },
     { GTK_CSS_CHANGE_FIRST_CHILD, GTK_CSS_CHANGE_SIBLING_FIRST_CHILD },
     { GTK_CSS_CHANGE_LAST_CHILD, GTK_CSS_CHANGE_SIBLING_LAST_CHILD },
-    { GTK_CSS_CHANGE_NTH_CHILD, GTK_CSS_CHANGE_SIBLING_NTH_CHILD },
-    { GTK_CSS_CHANGE_NTH_LAST_CHILD, GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD },
+    { GTK_CSS_CHANGE_NTH_CHILD, GTK_CSS_CHANGE_NTH_CHILD | GTK_CSS_CHANGE_SIBLING_NTH_CHILD },
+    { GTK_CSS_CHANGE_NTH_LAST_CHILD, GTK_CSS_CHANGE_NTH_LAST_CHILD | GTK_CSS_CHANGE_SIBLING_NTH_LAST_CHILD },
     { GTK_CSS_CHANGE_STATE, GTK_CSS_CHANGE_SIBLING_STATE },
     { GTK_CSS_CHANGE_SOURCE, 0 },
     { GTK_CSS_CHANGE_PARENT_STYLE, 0 }