[mutter/wip/carlosg/x11less-preparations: 3/13] core: Separate checks for pointer barriers availability



commit 77fcae085c87a3190b6ac69ba560a60ea55ae766
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Dec 30 13:34:06 2018 +0100

    core: Separate checks for pointer barriers availability
    
    If the check happens on --nested (X11 backend) while there is no X11
    display we would get a crash. Since the barriers are non-effective on
    nested, just take it out into a separate condition.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/420

 src/core/display.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/core/display.c b/src/core/display.c
index 754d5a2e9..a9659fe9c 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -49,6 +49,7 @@
 #include "backends/meta-logical-monitor.h"
 #include "backends/meta-stage-private.h"
 #include "backends/x11/meta-backend-x11.h"
+#include "backends/x11/cm/meta-backend-x11-cm.h"
 #include "clutter/x11/clutter-x11.h"
 #include "core/bell.h"
 #include "core/boxes-private.h"
@@ -2597,13 +2598,14 @@ meta_display_supports_extended_barriers (MetaDisplay *display)
     return TRUE;
 #endif
 
-  if (META_IS_BACKEND_X11 (meta_get_backend ()))
+  if (META_IS_BACKEND_X11_CM (meta_get_backend ()))
     {
-      return (META_X11_DISPLAY_HAS_XINPUT_23 (display->x11_display) &&
-              !meta_is_wayland_compositor());
+      if (meta_is_wayland_compositor())
+        return FALSE;
+
+      return META_X11_DISPLAY_HAS_XINPUT_23 (display->x11_display);
     }
 
-  g_assert_not_reached ();
   return FALSE;
 }
 


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