GtkBuilder: Make IDs optional

One requirement of .ui files is that each object must have an ID,
even if it is never referred to or directly loaded from the code.
This makes editing .ui files much more onerous than it has to be,
due to the frequent need to invent new IDs, while avoiding
clashes.

This commit makes IDs optional in the XML. They only need to
be provided for objects which are referred to or explictly loaded
from the code. Since GtkBuilder needs IDs for its own internal
accounting, we create IDs of the form ___object_N___ if not
specified in the XML.

https://bugzilla.gnome.org/show_bug.cgi?id=712553

1 files changed, 2 insertions, 0 deletions

diff --git a/gtk/gtkbuilderprivate.h b/gtk/gtkbuilderprivate.h
index 346459c678..b653373be7 100644
--- a/gtk/gtkbuilderprivate.h
+++ b/gtk/gtkbuilderprivate.h
@@ -107,6 +107,8 @@ typedef struct {
   gint requested_object_level;
   gint cur_object_level;
 
+  gint object_counter;
+
   GHashTable *object_ids;
 } ParserData;