file chooser button: Set a CSS name

This lets us differentiate the main node from regular boxes.

diff --git a/gtk/gtkfilechooserbutton.c b/gtk/gtkfilechooserbutton.c
index e9e81471b9bdf8fa9ffac1287b7c937743c799e0..5178b777bd7174ebae9569edc46a50fe61f33777 100644 (file)
--- a/gtk/gtkfilechooserbutton.c
+++ b/gtk/gtkfilechooserbutton.c
@@ -471,6 +471,8 @@ gtk_file_chooser_button_class_init (GtkFileChooserButtonClass * class)
   gtk_widget_class_bind_template_callback (widget_class, button_clicked_cb);
   gtk_widget_class_bind_template_callback (widget_class, combo_box_changed_cb);
   gtk_widget_class_bind_template_callback (widget_class, combo_box_notify_popup_shown_cb);
+
+  gtk_widget_class_set_css_name (widget_class, "filechooserbutton");
 }
 
 static void