[glib] GDesktopAppInfo: Do not set the DISPLAY in gio

[Matthias Clasen <matthiasc src gnome org>]

commit 4919c25d497dcba708074f7d35ea6b43d17f7294
Author: Olivier Fourdan <ofourdan redhat com>
Date:   Tue Sep 15 09:22:12 2015 +0200

    GDesktopAppInfo: Do not set the DISPLAY in gio
    
    The environment variable DISPLAY makes sense only for X11, it should
    not be set in gio.
    
    Beside, if the backend is not X11 but Wayland, forcing the value of
    DISPLAY to the Wayland display will confuse the backend selection and
    possibly crash the applications.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=754983

 gio/gdesktopappinfo.c |   13 ++-----------
 1 files changed, 2 insertions(+), 11 deletions(-)
---
diff --git a/gio/gdesktopappinfo.c b/gio/gdesktopappinfo.c
index b229788..cbfe556 100644
--- a/gio/gdesktopappinfo.c
+++ b/gio/gdesktopappinfo.c
@@ -2669,7 +2669,7 @@ g_desktop_app_info_launch_uris_with_spawn (GDesktopAppInfo            *info,
       GPid pid;
       GList *launched_uris;
       GList *iter;
-      char *display, *sn_id = NULL;
+      char *sn_id = NULL;
 
       old_uris = uris;
       if (!expand_application_parameters (info, exec_line, &uris, &argc, &argv, error))
@@ -2708,18 +2708,11 @@ g_desktop_app_info_launch_uris_with_spawn (GDesktopAppInfo            *info,
           data.pid_envvar = NULL;
         }
 
-      display = NULL;
       sn_id = NULL;
       if (launch_context)
         {
           GList *launched_files = create_files_for_uris (launched_uris);
 
-          display = g_app_launch_context_get_display (launch_context,
-                                                      G_APP_INFO (info),
-                                                      launched_files);
-          if (display)
-            envp = g_environ_setenv (envp, "DISPLAY", display, TRUE);
-
           if (info->startup_notify)
             {
               sn_id = g_app_launch_context_get_startup_notify_id (launch_context,
@@ -2744,7 +2737,6 @@ g_desktop_app_info_launch_uris_with_spawn (GDesktopAppInfo            *info,
           if (sn_id)
             g_app_launch_context_launch_failed (launch_context, sn_id);
 
-          g_free (display);
           g_free (sn_id);
           g_list_free (launched_uris);
 
@@ -2771,11 +2763,10 @@ g_desktop_app_info_launch_uris_with_spawn (GDesktopAppInfo            *info,
       notify_desktop_launch (session_bus,
                              info,
                              pid,
-                             display,
+                             NULL,
                              sn_id,
                              launched_uris);
 
-      g_free (display);
       g_free (sn_id);
       g_list_free (launched_uris);