[clutter] gdk: master clock: only process mapped & realized stages

[Lionel Landwerlin <llandwerlin src gnome org>]

commit 5733ad58e5a3989f5cb836d42a1cebf3884e7c36
Author: Lionel Landwerlin <llandwerlin gmail com>
Date:   Sat Sep 5 23:08:09 2015 +0100

    gdk: master clock: only process mapped & realized stages
    
    When using Clutter embed inside a Gtk application, a stage might end
    up realized but not visible. In this case we might discard doing any
    kind of animation processing.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=754671

 clutter/gdk/clutter-master-clock-gdk.c |   17 +++++++++--------
 1 files changed, 9 insertions(+), 8 deletions(-)
---
diff --git a/clutter/gdk/clutter-master-clock-gdk.c b/clutter/gdk/clutter-master-clock-gdk.c
index 228d31f..2a5db8a 100644
--- a/clutter/gdk/clutter-master-clock-gdk.c
+++ b/clutter/gdk/clutter-master-clock-gdk.c
@@ -385,11 +385,12 @@ clutter_master_clock_gdk_listen_to_stage (ClutterMasterClockGdk *master_clock,
 }
 
 static void
-clutter_master_clock_gdk_stage_realized (ClutterStage          *stage,
-                                         GParamSpec            *spec,
-                                         ClutterMasterClockGdk *master_clock)
+clutter_master_clock_gdk_stage_visibility (ClutterStage          *stage,
+                                           GParamSpec            *spec,
+                                           ClutterMasterClockGdk *master_clock)
 {
-  if (clutter_actor_is_realized (CLUTTER_ACTOR (stage)))
+  ClutterActor *actor = CLUTTER_ACTOR (stage);
+  if (clutter_actor_is_mapped (actor))
     clutter_master_clock_gdk_listen_to_stage (master_clock, stage);
   else
     clutter_master_clock_gdk_remove_stage_clock (master_clock, stage);
@@ -400,11 +401,11 @@ clutter_master_clock_gdk_stage_added (ClutterStageManager   *manager,
                                       ClutterStage          *stage,
                                       ClutterMasterClockGdk *master_clock)
 {
-  g_signal_connect (stage, "notify::realized",
-                    G_CALLBACK (clutter_master_clock_gdk_stage_realized),
+  g_signal_connect (stage, "notify::mapped",
+                    G_CALLBACK (clutter_master_clock_gdk_stage_visibility),
                     master_clock);
 
-  clutter_master_clock_gdk_listen_to_stage (master_clock, stage);
+  clutter_master_clock_gdk_stage_visibility (stage, NULL, master_clock);
 }
 
 static void
@@ -415,7 +416,7 @@ clutter_master_clock_gdk_stage_removed (ClutterStageManager   *manager,
   clutter_master_clock_gdk_remove_stage_clock (master_clock, stage);
 
   g_signal_handlers_disconnect_by_func (stage,
-                                        clutter_master_clock_gdk_stage_realized,
+                                        clutter_master_clock_gdk_stage_visibility,
                                         master_clock);
 }