notebook: add a style class when the child tab is reorderable

diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index 0b0791de866b6c8bfe1ba9d2db6a2e9da62b6ba8..b610b6cc824c1288c8aaee133e9595c6f6d895ba 100644 (file)
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -2016,6 +2016,9 @@ notebook_tab_prepare_style_context (GtkNotebook *notebook,
 
   gtk_style_context_add_region (context, GTK_STYLE_REGION_TAB, flags);
 
+  if (page->reorderable)
+    gtk_style_context_add_class (context, "reorderable-page");
+
   switch (tab_pos)
     {
     case GTK_POS_TOP: