Initial import

2 files changed, 134 insertions, 0 deletions

diff --git a/tools/gnome_screensaver.c b/tools/gnome_screensaver.c
new file mode 100644
index 00000000..245f1f63
--- /dev/null
+++ b/tools/gnome_screensaver.c
@@ -0,0 +1,128 @@
+/*
+ * gnome_screensaver.c v0.0.7
+ *
+ * Enable/Disable the GNOME screensaver
+ * Supports GNOME screensaver API 2.14 and 2.15
+ *
+ * Call gnome_screensaver_control(1) to enable and
+ * gnome_screensaver_control(0) to disable
+ *
+ */
+/*
+ * Orginally written for mplayer by Piotr Kaczuba
+ *   (http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2006-April/042661.html)
+ *
+ * Modified for xineliboutput by Alex Stansfield
+ *   (http://www.linuxtv.org/pipermail/vdr/2007-July/013458.html)
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <dbus/dbus-glib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+#define LOG_MODULENAME "[vdr-fe]    "
+#include "../logdefs.h"
+
+#include "gnome_screensaver.h"
+
+#define GS_SERVICE   "org.gnome.ScreenSaver"
+#define GS_PATH      "/org/gnome/ScreenSaver"
+#define GS_INTERFACE "org.gnome.ScreenSaver"
+
+#define GS_APPLICATION_NAME     "vdr-sxfe"
+#define GS_REASON_FOR_INHIBIT   "Watching TV"
+
+/* Log Messages */
+#define MSG_OpenBusConnectionError "Failed to open connection to bus: %s"
+#define MSG_RemoteMethodException "Caught remote method exception %s: %s"
+#define MSG_GnomeAPI215Failed "GNOME screensaver 2.15 API failed, trying 2.14 API"
+#define MSG_GError "Error: %s"
+#define MSG_GNOMEScreensaverEnabled "GNOME screensaver enabled"
+#define MSG_GNOMEScreensaverDisabled "GNOME screensaver disabled"
+
+static guint32 cookie;
+
+void gnome_screensaver_control(int enable)
+{
+  DBusGConnection *connection;
+  GError *error;
+  DBusGProxy *proxy;
+  gboolean ret;
+
+  g_type_init();
+
+  /* Get a connection to the session bus */
+  error = NULL;
+  connection = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
+  if (connection == NULL) {
+    LOGERR(MSG_OpenBusConnectionError, error->message);
+    g_error_free(error);
+    return;
+  }
+
+  /* Create a proxy object */
+  proxy = dbus_g_proxy_new_for_name(connection,
+                                    GS_SERVICE, GS_PATH, GS_INTERFACE);
+
+  /* Enable the screensaver */
+  if (enable) {
+    /* First call the GNOME screensaver 2.15 API method */
+    error = NULL;
+    ret =
+        dbus_g_proxy_call(proxy, "UnInhibit", &error, G_TYPE_UINT,
+                          cookie, G_TYPE_INVALID, G_TYPE_INVALID);
+
+    /* If this fails, try the GNOME screensaver 2.14 API */
+    if (!ret && error->domain == DBUS_GERROR
+        && error->code == DBUS_GERROR_UNKNOWN_METHOD) {
+      LOGERR(MSG_GnomeAPI215Failed);
+      g_error_free(error);
+      error = NULL;
+      ret =
+          dbus_g_proxy_call(proxy, "AllowActivation", &error,
+                            G_TYPE_INVALID, G_TYPE_INVALID);
+    }
+  }
+  /* Disable the screensaver */
+  else {
+    /* First call the GNOME screensaver 2.15 API method */
+    error = NULL;
+    ret =
+        dbus_g_proxy_call(proxy, "Inhibit", &error, G_TYPE_STRING,
+                          GS_APPLICATION_NAME, G_TYPE_STRING,
+                          GS_REASON_FOR_INHIBIT, G_TYPE_INVALID,
+                          G_TYPE_UINT, cookie, G_TYPE_INVALID);
+
+    /* If this fails, try the GNOME screensaver 2.14 API */
+    if (!ret && error->domain == DBUS_GERROR
+        && error->code == DBUS_GERROR_UNKNOWN_METHOD) {
+      LOGERR(MSG_GnomeAPI215Failed);
+      g_error_free(error);
+      error = NULL;
+      ret =
+          dbus_g_proxy_call(proxy, "InhibitActivation", &error,
+                            G_TYPE_STRING, GS_REASON_FOR_INHIBIT,
+                            G_TYPE_INVALID, G_TYPE_INVALID);
+    }
+  }
+
+  if (!ret) {
+    /* Check if it's a remote exception or a regular GError */
+    if (error->domain == DBUS_GERROR
+        && error->code == DBUS_GERROR_REMOTE_EXCEPTION) {
+      LOGERR(MSG_RemoteMethodException, dbus_g_error_get_name(error), error->message);
+    }
+    else {
+      LOGERR(MSG_GError, error->message);
+    }
+    g_error_free(error);
+  }
+  else {
+    LOGMSG(enable ? MSG_GNOMEScreensaverEnabled : MSG_GNOMEScreensaverDisabled);
+  }
+
+  g_object_unref(proxy);
+}
diff --git a/tools/gnome_screensaver.h b/tools/gnome_screensaver.h
new file mode 100644
index 00000000..84dee38e
--- /dev/null
+++ b/tools/gnome_screensaver.h
@@ -0,0 +1,6 @@
+#ifndef _GNOME_SCREENSAVER_H
+#define _GNOME_SCREENSAVER_H
+
+extern void gnome_screensaver_control(int enable);
+
+#endif /* !_GNOME_SCREENSAVER_H */