1 files changed, 62 insertions, 0 deletions
diff --git a/tools/gnome_screensaver.c b/tools/gnome_screensaver.c
index d9dba279..81685100 100644
--- a/tools/gnome_screensaver.c
+++ b/tools/gnome_screensaver.c
@@ -26,6 +26,11 @@
 #include <stdarg.h>
 #include <string.h>
 
+#include "../features.h"
+#ifdef HAVE_MCE_DBUS_NAMES
+# include <mce/dbus-names.h>
+#endif
+
 #define LOG_MODULENAME "[scrnsaver] "
 #include "../logdefs.h"
 
@@ -49,6 +54,8 @@
 #define MSG_GError "Error: %s"
 #define MSG_GNOMEScreensaverEnabled "GNOME screensaver enabled"
 #define MSG_GNOMEScreensaverDisabled "GNOME screensaver disabled"
+#define MSG_MCEScreensaverEnabled "MCE screensaver enabled"
+#define MSG_MCEScreensaverDisabled "MCE screensaver disabled"
 
 static guint32 cookie;
 
@@ -101,6 +108,50 @@ static int gnome_sessionmanager_control(DBusGConnection *connection, int enable)
   return 1;
 }
 
+#ifdef HAVE_MCE_DBUS_NAMES
+static int mce_control(DBusGConnection *connection, int enable)
+{
+  GError *error;
+  DBusGProxy *proxy;
+  gboolean ret = 1;
+
+  /* Create a proxy object */
+  proxy = dbus_g_proxy_new_for_name(connection,
+                                    MCE_SERVICE, MCE_REQUEST_PATH, MCE_REQUEST_IF);
+  if (!proxy) {
+    LOGDBG("Failed to get a proxy for " SM_SERVICE);
+    return 0;
+  }
+
+  error = NULL;
+  if (enable) {
+    ret = dbus_g_proxy_call(proxy, MCE_CANCEL_PREVENT_BLANK_REQ, &error,
+                            G_TYPE_INVALID, G_TYPE_INVALID);
+  } else {
+    ret = dbus_g_proxy_call(proxy, MCE_PREVENT_BLANK_REQ, &error,
+                            G_TYPE_INVALID, G_TYPE_INVALID);
+  }
+
+  g_object_unref(proxy);
+
+  if (!ret) {
+    /* Check if it's a remote exception or a regular GError */
+    if (error->domain == DBUS_GERROR &&
+        error->code   == DBUS_GERROR_REMOTE_EXCEPTION) {
+      LOGMSG(MSG_RemoteMethodException, dbus_g_error_get_name(error), error->message);
+    } else {
+      LOGMSG(MSG_GError, error->message);
+    }
+    g_error_free(error);
+
+    return 0;
+  }
+
+  LOGMSG(enable ? MSG_MCEScreensaverEnabled : MSG_MCEScreensaverDisabled);
+  return 1;
+}
+#endif
+
 void gnome_screensaver_control(int enable)
 {
   DBusGConnection *connection;
@@ -110,6 +161,17 @@ void gnome_screensaver_control(int enable)
 
   g_type_init();
 
+#ifdef HAVE_MCE_DBUS_NAMES
+  error = NULL;
+  connection = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);
+  if (!connection) {
+    LOGMSG(MSG_OpenBusConnectionError, error ? error->message : "<null>");
+    g_error_free(error);
+  } else if (mce_control(connection, enable)) {
+    return;
+  }
+#endif
+
   /* Get a connection to the session bus */
   error = NULL;
   connection = dbus_g_bus_get(DBUS_BUS_SESSION, &error);