[mutter/wip/carlosg/grabs-pt1: 5/16] clutter: Separate crossing event creation from emission

[Carlos Garnacho <carlosg src gnome org>]

commit 4c5abfb34c52c46c8113d0cb6be6246e24798828
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Oct 26 16:51:01 2021 +0200

    clutter: Separate crossing event creation from emission
    
    We will want to be more specific about the portions of the actor
    hierarchy that receive this event, separate creation and emission
    so each place does what is relevant.
    
    However, this commit brings no functional changes.

 clutter/clutter/clutter-stage.c | 36 +++++++++++++++++-------------------
 1 file changed, 17 insertions(+), 19 deletions(-)
---
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index 6101ec5a5d..3d3c4f1fee 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -3425,7 +3425,7 @@ clutter_stage_get_device_actor (ClutterStage         *stage,
   return NULL;
 }
 
-static void
+static ClutterEvent *
 create_crossing_event (ClutterStage         *stage,
                        ClutterInputDevice   *device,
                        ClutterEventSequence *sequence,
@@ -3448,14 +3448,7 @@ create_crossing_event (ClutterStage         *stage,
   event->crossing.sequence = sequence;
   clutter_event_set_device (event, device);
 
-  /* we need to make sure that this event is processed
-   * before any other event we might have queued up until
-   * now, so we go on, and synthesize the event emission
-   * ourselves
-   */
-  _clutter_process_event (event);
-
-  clutter_event_free (event);
+  return event;
 }
 
 void
@@ -3470,6 +3463,7 @@ clutter_stage_update_device (ClutterStage         *stage,
   ClutterInputDeviceType device_type;
   ClutterActor *old_actor;
   gboolean device_actor_changed;
+  ClutterEvent *event;
 
   device_type = clutter_input_device_get_device_type (device);
 
@@ -3495,20 +3489,24 @@ clutter_stage_update_device (ClutterStage         *stage,
 
       if (old_actor && emit_crossing)
         {
-          create_crossing_event (stage,
-                                 device, sequence,
-                                 CLUTTER_LEAVE,
-                                 old_actor, new_actor,
-                                 point, time);
+          event = create_crossing_event (stage,
+                                         device, sequence,
+                                         CLUTTER_LEAVE,
+                                         old_actor, new_actor,
+                                         point, time);
+          _clutter_process_event (event);
+          clutter_event_free (event);
         }
 
       if (new_actor && emit_crossing)
         {
-          create_crossing_event (stage,
-                                 device, sequence,
-                                 CLUTTER_ENTER,
-                                 new_actor, old_actor,
-                                 point, time);
+          event = create_crossing_event (stage,
+                                         device, sequence,
+                                         CLUTTER_ENTER,
+                                         new_actor, old_actor,
+                                         point, time);
+          _clutter_process_event (event);
+          clutter_event_free (event);
         }
     }
 }