[gnome-battery-bench] Only setup the 'stop-shortcut' when running on X11

[Christian Kellner <gicmo src gnome org>]

commit b89dad66d3cccaca636a83b5f14c2ee937c4ca9d
Author: Christian Kellner <gicmo gnome org>
Date:   Mon Dec 12 17:33:34 2016 +0100

    Only setup the 'stop-shortcut' when running on X11
    
    When running on Wayland (i.e. non-X11) the attempt to setup the
    stop-shortcut, using X11 specific functions, will lead to a crash.
    Therefore this disables the setup of the shortcut on non-X11.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=775996

 src/application.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/application.c b/src/application.c
index 4b365cb..8d57a54 100644
--- a/src/application.c
+++ b/src/application.c
@@ -495,7 +495,8 @@ application_start(GbbApplication *application)
 
     gbb_power_graphs_set_test_run(GBB_POWER_GRAPHS(application->test_graphs), application->run);
 
-    setup_stop_shortcut(application);
+    if (GDK_IS_X11_DISPLAY(gtk_widget_get_display(application->window)))
+        setup_stop_shortcut(application);
 
     gbb_test_runner_set_run(application->runner, application->run);
     gbb_test_runner_start(application->runner);
@@ -866,7 +867,8 @@ on_runner_phase_changed(GbbTestRunner  *runner,
 
         application->test = NULL;
 
-        remove_stop_shortcut(application);
+        if (GDK_IS_X11_DISPLAY(gtk_widget_get_display(application->window)))
+            remove_stop_shortcut(application);
 
         g_object_set(G_OBJECT(application->start_button), "label", "Start", NULL);