[mutter/wip/carlosg/grabs-pt1: 85/86] clutter: Add specific event flag to tag "grab notify" crossing events

[Carlos Garnacho <carlosg src gnome org>]

commit 649d43886bf69ed48a0f6e3471fce9e27dddc0d1
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 8e69de22e6..2bc4991eb7 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -3498,6 +3498,7 @@ create_crossing_event (ClutterStage         *stage,
                        ClutterInputDevice   *device,
                        ClutterEventSequence *sequence,
                        ClutterEventType      event_type,
+                       ClutterEventFlags     flags,
                        ClutterActor         *source,
                        ClutterActor         *related,
                        graphene_point_t      coords,
@@ -3507,7 +3508,7 @@ 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;
@@ -3585,6 +3586,7 @@ 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))
@@ -3598,6 +3600,7 @@ 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))
@@ -3778,6 +3781,7 @@ 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,