[mutter/wip/carlosg/grabs-pt1: 21/22] clutter: Add specific event flag to tag "grab notify" crossing events

[Carlos Garnacho <carlosg src gnome org>]

commit ba24a002095229a8eeb921be879bd112a7a74a5e
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Oct 29 12:29:51 2021 +0200

    clutter: Add specific event flag to tag "grab notify" crossing events
    
    These events may need some differentiation or special handling, so add
    this event flag and set it in the relevant events.

 clutter/clutter/clutter-enums.h | 1 +
 clutter/clutter/clutter-stage.c | 8 +++++---
 2 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/clutter/clutter/clutter-enums.h b/clutter/clutter/clutter-enums.h
index b9f23ab63f..07ab738d33 100644
--- a/clutter/clutter/clutter-enums.h
+++ b/clutter/clutter/clutter-enums.h
@@ -804,6 +804,7 @@ typedef enum /*< flags prefix=CLUTTER_EVENT >*/
   CLUTTER_EVENT_FLAG_INPUT_METHOD = 1 << 1,
   CLUTTER_EVENT_FLAG_REPEATED     = 1 << 2,
   CLUTTER_EVENT_FLAG_RELATIVE_MOTION = 1 << 3,
+  CLUTTER_EVENT_FLAG_GRAB_NOTIFY  = 1 << 4,
 } ClutterEventFlags;
 
 /**
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index 1d01fd56d9..b6c94e285a 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -3462,6 +3462,7 @@ create_crossing_event (ClutterStage         *stage,
                        ClutterInputDevice   *device,
                        ClutterEventSequence *sequence,
                        ClutterEventType      event_type,
+                       ClutterEventFlags     flags,
                        ClutterActor         *source,
                        ClutterActor         *related,
                        graphene_point_t      coords,
@@ -3471,7 +3472,7 @@ create_crossing_event (ClutterStage         *stage,
 
   event = clutter_event_new (event_type);
   event->crossing.time = time;
-  event->crossing.flags = 0;
+  event->crossing.flags = flags;
   event->crossing.stage = stage;
   event->crossing.source = source;
   event->crossing.x = coords.x;
@@ -3540,7 +3541,7 @@ clutter_stage_update_device (ClutterStage         *stage,
         {
           event = create_crossing_event (stage,
                                          device, sequence,
-                                         CLUTTER_LEAVE,
+                                         CLUTTER_LEAVE, 0,
                                          old_actor, new_actor,
                                          point, time);
           _clutter_actor_handle_event (old_actor, root, event);
@@ -3552,7 +3553,7 @@ clutter_stage_update_device (ClutterStage         *stage,
         {
           event = create_crossing_event (stage,
                                          device, sequence,
-                                         CLUTTER_ENTER,
+                                         CLUTTER_ENTER, 0,
                                          new_actor, old_actor,
                                          point, time);
           _clutter_actor_handle_event (new_actor, root, event);
@@ -3670,6 +3671,7 @@ clutter_stage_notify_grab_on_entry (ClutterStage       *stage,
                                      entry->device,
                                      entry->sequence,
                                      event_type,
+                                     CLUTTER_EVENT_FLAG_GRAB_NOTIFY,
                                      entry->current_actor,
                                      event_type == CLUTTER_LEAVE ?
                                      grab_actor : old_grab_actor,