[mutter] clutter: Rename touchpad gesture n_fingers getter to be more generic

[Carlos Garnacho <carlosg src gnome org>]

commit 4cfc21d49d6259373b5b7131398152c926de0566
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue May 3 13:31:11 2016 +0200

    clutter: Rename touchpad gesture n_fingers getter to be more generic
    
    This can also be used now on pinch events, so make a more generic name
    for this function.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765937

 clutter/clutter/clutter-event.c                  |   18 ++++++++++++------
 clutter/clutter/clutter-event.h                  |    2 +-
 src/wayland/meta-wayland-pointer-gesture-swipe.c |    2 +-
 3 files changed, 14 insertions(+), 8 deletions(-)
---
diff --git a/clutter/clutter/clutter-event.c b/clutter/clutter/clutter-event.c
index 35a1a4d..0c1b703 100644
--- a/clutter/clutter/clutter-event.c
+++ b/clutter/clutter/clutter-event.c
@@ -1990,22 +1990,28 @@ clutter_event_remove_filter (guint id)
 }
 
 /**
- * clutter_event_get_gesture_swipe_finger_count:
- * @event: a touchpad swipe event
+ * clutter_event_get_touchpad_gesture_finger_count:
+ * @event: a touchpad swipe/pinch event
  *
  * Returns the number of fingers that is triggering the touchpad gesture.
  *
- * Returns: the number of fingers swiping.
+ * Returns: the number of fingers in the gesture.
  *
  * Since: 1.24
  **/
 guint
-clutter_event_get_gesture_swipe_finger_count (const ClutterEvent *event)
+clutter_event_get_touchpad_gesture_finger_count (const ClutterEvent *event)
 {
   g_return_val_if_fail (event != NULL, 0);
-  g_return_val_if_fail (event->type == CLUTTER_TOUCHPAD_SWIPE, 0);
+  g_return_val_if_fail (event->type == CLUTTER_TOUCHPAD_SWIPE ||
+                        event->type == CLUTTER_TOUCHPAD_PINCH, 0);
 
-  return event->touchpad_swipe.n_fingers;
+  if (event->type == CLUTTER_TOUCHPAD_SWIPE)
+    return event->touchpad_swipe.n_fingers;
+  else if (event->type == CLUTTER_TOUCHPAD_PINCH)
+    return event->touchpad_pinch.n_fingers;
+
+  return 0;
 }
 
 /**
diff --git a/clutter/clutter/clutter-event.h b/clutter/clutter/clutter-event.h
index 88f899e..ab04f1b 100644
--- a/clutter/clutter/clutter-event.h
+++ b/clutter/clutter/clutter-event.h
@@ -753,7 +753,7 @@ CLUTTER_AVAILABLE_IN_1_2
 const ClutterEvent *    clutter_get_current_event               (void);
 
 CLUTTER_AVAILABLE_IN_1_24
-guint                   clutter_event_get_gesture_swipe_finger_count (const ClutterEvent     *event);
+guint                   clutter_event_get_touchpad_gesture_finger_count (const ClutterEvent  *event);
 
 CLUTTER_AVAILABLE_IN_1_24
 gdouble                 clutter_event_get_gesture_pinch_angle_delta  (const ClutterEvent     *event);
diff --git a/src/wayland/meta-wayland-pointer-gesture-swipe.c 
b/src/wayland/meta-wayland-pointer-gesture-swipe.c
index 514d2c7..eaa34ac 100644
--- a/src/wayland/meta-wayland-pointer-gesture-swipe.c
+++ b/src/wayland/meta-wayland-pointer-gesture-swipe.c
@@ -43,7 +43,7 @@ handle_swipe_begin (MetaWaylandPointer *pointer,
   pointer_client = pointer->focus_client;
   seat = meta_wayland_pointer_get_seat (pointer);
   serial = wl_display_next_serial (seat->wl_display);
-  fingers = clutter_event_get_gesture_swipe_finger_count (event);
+  fingers = clutter_event_get_touchpad_gesture_finger_count (event);
 
   wl_resource_for_each (resource, &pointer_client->swipe_gesture_resources)
     {