Set the extended window manager hint for tooltip windows.

* xfns.c (x_create_tip_frame): Set the extended window manager hint for
tooltip windows.

* xterm.h (struct x_display_info): Add Xatom_net_window_type_tooltip and
Xatom_net_window_type.

* xterm.c (x_term_init): Initialize Xatom_net_window_type_tooltip and
Xatom_net_window_type.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/xterm.h b/src/xterm.h
index 1ad2a097016..6c6de8d901d 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -355,10 +355,12 @@ struct x_display_info
   size_t x_dnd_atoms_size;
   size_t x_dnd_atoms_length;
 
-  /* Extended window manager hints, Atoms supported by the window manager  */
+  /* Extended window manager hints, Atoms supported by the window manager and
+     atoms for settig the window type.  */
   Atom *net_supported_atoms;
   int nr_net_supported_atoms;
   Window net_supported_window;
+  Atom Xatom_net_window_type, Xatom_net_window_type_tooltip;
 
   /* Atoms dealing with maximization and fullscreen */
   Atom Xatom_net_wm_state, Xatom_net_wm_state_fullscreen_atom,