[mutter/wip/carlosg/grabs-pt1: 8/9] clutter: Add specific event flag to tag "grab notify" crossing events

[Carlos Garnacho <carlosg src gnome org>]

commit d46b6f0a38a731e7047cac984787d20c1b701379
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 | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/clutter/clutter/clutter-enums.h b/clutter/clutter/clutter-enums.h
index 9177f1095e..9ee55fb5c4 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 449f616765..3ef7ba69eb 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -3496,6 +3496,7 @@ create_crossing_event (ClutterStage         *stage,
                        ClutterInputDevice   *device,
                        ClutterEventSequence *sequence,
                        ClutterEventType      event_type,
+                       ClutterEventFlags     flags,
                        ClutterActor         *source,
                        ClutterActor         *related,
                        graphene_point_t      coords,
@@ -3505,7 +3506,7 @@ create_crossing_event (ClutterStage         *stage,
 
   event = clutter_event_new (event_type);
   event->crossing.time = time_ms;
-  event->crossing.flags = 0;
+  event->crossing.flags = flags;
   event->crossing.stage = stage;
   event->crossing.source = source;
   event->crossing.x = coords.x;
@@ -3583,6 +3584,7 @@ clutter_stage_update_device (ClutterStage         *stage,
           event = create_crossing_event (stage,
                                          device, sequence,
                                          CLUTTER_LEAVE,
+                                         CLUTTER_EVENT_NONE,
                                          old_actor, new_actor,
                                          point, time_ms);
           if (!_clutter_event_process_filters (event))
@@ -3596,6 +3598,7 @@ clutter_stage_update_device (ClutterStage         *stage,
           event = create_crossing_event (stage,
                                          device, sequence,
                                          CLUTTER_ENTER,
+                                         CLUTTER_EVENT_NONE,
                                          new_actor, old_actor,
                                          point, time_ms);
           if (!_clutter_event_process_filters (event))
@@ -3776,6 +3779,7 @@ clutter_stage_notify_grab_on_pointer_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,