[gtk+/gtk-3-18] wayland: Set a more believable crossing detail on pointer enter/leave

[Carlos Garnacho <carlosg src gnome org>]

commit 17ea79f33a1498f493da1246149429a8388a65bf
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Oct 9 16:14:31 2015 +0200

    wayland: Set a more believable crossing detail on pointer enter/leave
    
    GDK_NOTIFY_ANCESTOR would happen when the pointer crosses across a direct
    parent/child. However nonlinear events are more likely, specially when
    the pointer moves across toplevels (either different apps, or menus being
    popped up over the pointer position).
    
    This makes popping up comboboxes and other menus that fall over the pointer
    position possible. With the previous detail the GtkMenu code misinterpreted
    the crossing event, making it think the button release coming right after
    should dismiss the popup, which made menus just flash on the screen unless
    you kept the button pressed.

 gdk/wayland/gdkdevice-wayland.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gdk/wayland/gdkdevice-wayland.c b/gdk/wayland/gdkdevice-wayland.c
index b6e3fd0..84a1167 100644
--- a/gdk/wayland/gdkdevice-wayland.c
+++ b/gdk/wayland/gdkdevice-wayland.c
@@ -881,7 +881,7 @@ pointer_handle_enter (void              *data,
   event->crossing.subwindow = NULL;
   event->crossing.time = (guint32)(g_get_monotonic_time () / 1000);
   event->crossing.mode = GDK_CROSSING_NORMAL;
-  event->crossing.detail = GDK_NOTIFY_ANCESTOR;
+  event->crossing.detail = GDK_NOTIFY_NONLINEAR;
   event->crossing.focus = TRUE;
   event->crossing.state = 0;
 
@@ -928,7 +928,7 @@ pointer_handle_leave (void              *data,
   event->crossing.subwindow = NULL;
   event->crossing.time = (guint32)(g_get_monotonic_time () / 1000);
   event->crossing.mode = GDK_CROSSING_NORMAL;
-  event->crossing.detail = GDK_NOTIFY_ANCESTOR;
+  event->crossing.detail = GDK_NOTIFY_NONLINEAR;
   event->crossing.focus = TRUE;
   event->crossing.state = 0;