[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 4ab66cc481b2cc8cbebebb2e584ff7ce7d0449b2
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 e8b1c3adbc..ee964bdb74 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_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,