/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- * * Copyright (C) 2006-2007 Richard Hughes * * Licensed under the GNU General Public License Version 2 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include #include #include #include #include "gpm-screensaver.h" #include "gpm-common.h" #include "egg-debug.h" static void gpm_screensaver_finalize (GObject *object); #define GPM_SCREENSAVER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GPM_TYPE_SCREENSAVER, GpmScreensaverPrivate)) #define GS_LISTENER_SERVICE "org.mate.ScreenSaver" #define GS_LISTENER_PATH "/" #define GS_LISTENER_INTERFACE "org.mate.ScreenSaver" struct GpmScreensaverPrivate { DBusGProxy *proxy; }; static gpointer gpm_screensaver_object = NULL; G_DEFINE_TYPE (GpmScreensaver, gpm_screensaver, G_TYPE_OBJECT) /** * gpm_screensaver_lock * @screensaver: This class instance * Return value: Success value **/ gboolean gpm_screensaver_lock (GpmScreensaver *screensaver) { guint sleepcount = 0; g_return_val_if_fail (GPM_IS_SCREENSAVER (screensaver), FALSE); if (screensaver->priv->proxy == NULL) { egg_warning ("not connected"); return FALSE; } egg_debug ("doing mate-screensaver lock"); dbus_g_proxy_call_no_reply (screensaver->priv->proxy, "Lock", G_TYPE_INVALID); /* When we send the Lock signal to g-ss it takes maybe a second or so to fade the screen and lock. If we suspend mid fade then on resume the X display is still present for a split second (since fade is gamma) and as such it can leak information. Instead we wait until g-ss reports running and thus blanked solidly before we continue from the screensaver_lock action. The interior of g-ss is async, so we cannot get the dbus method to block until lock is complete. */ while (! gpm_screensaver_check_running (screensaver)) { /* Sleep for 1/10s */ g_usleep (1000 * 100); if (sleepcount++ > 50) { egg_debug ("timeout waiting for mate-screensaver"); break; } } return TRUE; } /** * gpm_screensaver_add_throttle: * @screensaver: This class instance * @reason: The reason for throttling * Return value: Success value, or zero for failure **/ guint gpm_screensaver_add_throttle (GpmScreensaver *screensaver, const char *reason) { GError *error = NULL; gboolean ret; guint32 cookie; g_return_val_if_fail (GPM_IS_SCREENSAVER (screensaver), 0); g_return_val_if_fail (reason != NULL, 0); if (screensaver->priv->proxy == NULL) { egg_warning ("not connected"); return 0; } ret = dbus_g_proxy_call (screensaver->priv->proxy, "Throttle", &error, G_TYPE_STRING, "Power screensaver", G_TYPE_STRING, reason, G_TYPE_INVALID, G_TYPE_UINT, &cookie, G_TYPE_INVALID); if (error) { egg_debug ("ERROR: %s", error->message); g_error_free (error); } if (!ret) { /* abort as the DBUS method failed */ egg_warning ("Throttle failed!"); return 0; } egg_debug ("adding throttle reason: '%s': id %u", reason, cookie); return cookie; } /** * gpm_screensaver_remove_throttle: **/ gboolean gpm_screensaver_remove_throttle (GpmScreensaver *screensaver, guint cookie) { gboolean ret; GError *error = NULL; g_return_val_if_fail (GPM_IS_SCREENSAVER (screensaver), FALSE); if (screensaver->priv->proxy == NULL) { egg_warning ("not connected"); return FALSE; } egg_debug ("removing throttle: id %u", cookie); ret = dbus_g_proxy_call (screensaver->priv->proxy, "UnThrottle", &error, G_TYPE_UINT, cookie, G_TYPE_INVALID, G_TYPE_INVALID); if (error) { egg_debug ("ERROR: %s", error->message); g_error_free (error); } if (!ret) { /* abort as the DBUS method failed */ egg_warning ("UnThrottle failed!"); return FALSE; } return TRUE; } /** * gpm_screensaver_check_running: * @screensaver: This class instance * Return value: TRUE if mate-screensaver is running **/ gboolean gpm_screensaver_check_running (GpmScreensaver *screensaver) { gboolean ret; gboolean temp = TRUE; GError *error = NULL; g_return_val_if_fail (GPM_IS_SCREENSAVER (screensaver), FALSE); if (screensaver->priv->proxy == NULL) { egg_warning ("not connected"); return FALSE; } ret = dbus_g_proxy_call (screensaver->priv->proxy, "GetActive", &error, G_TYPE_INVALID, G_TYPE_BOOLEAN, &temp, G_TYPE_INVALID); if (error) { egg_debug ("ERROR: %s", error->message); g_error_free (error); } return ret; } /** * gpm_screensaver_poke: * @screensaver: This class instance * * Pokes MATE Screensaver simulating hardware events. This displays the unlock * dialogue when we resume, so the user doesn't have to move the mouse or press * any key before the window comes up. **/ gboolean gpm_screensaver_poke (GpmScreensaver *screensaver) { g_return_val_if_fail (GPM_IS_SCREENSAVER (screensaver), FALSE); if (screensaver->priv->proxy == NULL) { egg_warning ("not connected"); return FALSE; } egg_debug ("poke"); dbus_g_proxy_call_no_reply (screensaver->priv->proxy, "SimulateUserActivity", G_TYPE_INVALID); return TRUE; } /** * gpm_screensaver_class_init: * @klass: This class instance **/ static void gpm_screensaver_class_init (GpmScreensaverClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = gpm_screensaver_finalize; g_type_class_add_private (klass, sizeof (GpmScreensaverPrivate)); } /** * gpm_screensaver_init: * @screensaver: This class instance **/ static void gpm_screensaver_init (GpmScreensaver *screensaver) { DBusGConnection *connection; screensaver->priv = GPM_SCREENSAVER_GET_PRIVATE (screensaver); connection = dbus_g_bus_get (DBUS_BUS_SESSION, NULL); screensaver->priv->proxy = dbus_g_proxy_new_for_name (connection, GS_LISTENER_SERVICE, GS_LISTENER_PATH, GS_LISTENER_INTERFACE); } /** * gpm_screensaver_finalize: * @object: This class instance **/ static void gpm_screensaver_finalize (GObject *object) { GpmScreensaver *screensaver; g_return_if_fail (object != NULL); g_return_if_fail (GPM_IS_SCREENSAVER (object)); screensaver = GPM_SCREENSAVER (object); screensaver->priv = GPM_SCREENSAVER_GET_PRIVATE (screensaver); g_object_unref (screensaver->priv->proxy); G_OBJECT_CLASS (gpm_screensaver_parent_class)->finalize (object); } /** * gpm_screensaver_new: * Return value: new GpmScreensaver instance. **/ GpmScreensaver * gpm_screensaver_new (void) { if (gpm_screensaver_object != NULL) { g_object_ref (gpm_screensaver_object); } else { gpm_screensaver_object = g_object_new (GPM_TYPE_SCREENSAVER, NULL); g_object_add_weak_pointer (gpm_screensaver_object, &gpm_screensaver_object); } return GPM_SCREENSAVER (gpm_screensaver_object); } /*************************************************************************** *** MAKE CHECK TESTS *** ***************************************************************************/ #ifdef EGG_TEST #include "egg-test.h" void gpm_screensaver_test (gpointer data) { GpmScreensaver *screensaver; // guint value; gboolean ret; EggTest *test = (EggTest *) data; if (egg_test_start (test, "GpmScreensaver") == FALSE) return; /************************************************************/ egg_test_title (test, "make sure we get a non null screensaver"); screensaver = gpm_screensaver_new (); egg_test_assert (test, (screensaver != NULL)); /************************************************************/ egg_test_title (test, "lock screensaver"); ret = gpm_screensaver_lock (screensaver); egg_test_assert (test, ret); /************************************************************/ egg_test_title (test, "poke screensaver"); ret = gpm_screensaver_poke (screensaver); egg_test_assert (test, ret); g_object_unref (screensaver); egg_test_end (test); } #endif