moved from Mate-Extra

1 files changed, 363 insertions, 0 deletions

diff --git a/src/egg-console-kit.c b/src/egg-console-kit.c
new file mode 100644
index 0000000..0602d7c
--- /dev/null
+++ b/src/egg-console-kit.c
@@ -0,0 +1,363 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2006-2008 Richard Hughes <[email protected]>
+ *
+ * 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 <string.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <glib.h>
+#include <dbus/dbus-glib.h>
+#include <dbus/dbus.h>
+
+#include "egg-debug.h"
+#include "egg-console-kit.h"
+
+static void     egg_console_kit_finalize	(GObject		*object);
+
+#define EGG_CONSOLE_KIT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), EGG_TYPE_CONSOLE_KIT, EggConsoleKitPrivate))
+
+#define CONSOLEKIT_NAME			"org.freedesktop.ConsoleKit"
+#define CONSOLEKIT_PATH			"/org/freedesktop/ConsoleKit"
+#define CONSOLEKIT_INTERFACE		"org.freedesktop.ConsoleKit"
+
+#define CONSOLEKIT_MANAGER_PATH	 	"/org/freedesktop/ConsoleKit/Manager"
+#define CONSOLEKIT_MANAGER_INTERFACE    "org.freedesktop.ConsoleKit.Manager"
+#define CONSOLEKIT_SEAT_INTERFACE       "org.freedesktop.ConsoleKit.Seat"
+#define CONSOLEKIT_SESSION_INTERFACE    "org.freedesktop.ConsoleKit.Session"
+
+struct EggConsoleKitPrivate
+{
+	DBusGConnection		*connection;
+	DBusGProxy		*proxy_manager;
+	DBusGProxy		*proxy_session;
+	gchar			*session_id;
+};
+
+enum {
+	EGG_CONSOLE_KIT_ACTIVE_CHANGED,
+	EGG_CONSOLE_KIT_LAST_SIGNAL
+};
+
+static gpointer egg_console_kit_object = NULL;
+static guint signals [EGG_CONSOLE_KIT_LAST_SIGNAL] = { 0 };
+G_DEFINE_TYPE (EggConsoleKit, egg_console_kit, G_TYPE_OBJECT)
+
+/**
+ * egg_console_kit_restart:
+ **/
+gboolean
+egg_console_kit_restart (EggConsoleKit *console, GError **error)
+{
+	gboolean ret;
+	GError *error_local = NULL;
+
+	g_return_val_if_fail (EGG_IS_CONSOLE_KIT (console), FALSE);
+	g_return_val_if_fail (console->priv->proxy_manager != NULL, FALSE);
+
+	ret = dbus_g_proxy_call (console->priv->proxy_manager, "Restart", &error_local,
+				 G_TYPE_INVALID, G_TYPE_INVALID);
+	if (!ret) {
+		egg_warning ("Couldn't restart: %s", error_local->message);
+		if (error != NULL)
+			*error = g_error_new (1, 0, "%s", error_local->message);
+		g_error_free (error_local);
+	}
+	return ret;
+}
+
+/**
+ * egg_console_kit_stop:
+ **/
+gboolean
+egg_console_kit_stop (EggConsoleKit *console, GError **error)
+{
+	gboolean ret;
+	GError *error_local = NULL;
+
+	g_return_val_if_fail (EGG_IS_CONSOLE_KIT (console), FALSE);
+	g_return_val_if_fail (console->priv->proxy_manager != NULL, FALSE);
+
+	ret = dbus_g_proxy_call (console->priv->proxy_manager, "Stop", &error_local,
+				 G_TYPE_INVALID, G_TYPE_INVALID);
+	if (!ret) {
+		egg_warning ("Couldn't stop: %s", error_local->message);
+		if (error != NULL)
+			*error = g_error_new (1, 0, "%s", error_local->message);
+		g_error_free (error_local);
+	}
+	return ret;
+}
+
+/**
+ * egg_console_kit_can_stop:
+ **/
+gboolean
+egg_console_kit_can_stop (EggConsoleKit *console, gboolean *can_stop, GError **error)
+{
+	gboolean ret;
+	GError *error_local = NULL;
+
+	g_return_val_if_fail (EGG_IS_CONSOLE_KIT (console), FALSE);
+	g_return_val_if_fail (console->priv->proxy_manager != NULL, FALSE);
+
+	ret = dbus_g_proxy_call (console->priv->proxy_manager, "CanStop", &error_local,
+				 G_TYPE_INVALID,
+				 G_TYPE_BOOLEAN, can_stop, G_TYPE_INVALID);
+	if (!ret) {
+		egg_warning ("Couldn't do CanStop: %s", error_local->message);
+		if (error != NULL)
+			*error = g_error_new (1, 0, "%s", error_local->message);
+		g_error_free (error_local);
+		/* CanStop was only added in new versions of ConsoleKit,
+		 * so assume true if this failed */
+		*can_stop = TRUE;
+	}
+	return ret;
+}
+
+/**
+ * egg_console_kit_can_restart:
+ **/
+gboolean
+egg_console_kit_can_restart (EggConsoleKit *console, gboolean *can_restart, GError **error)
+{
+	gboolean ret;
+	GError *error_local = NULL;
+
+	g_return_val_if_fail (EGG_IS_CONSOLE_KIT (console), FALSE);
+	g_return_val_if_fail (console->priv->proxy_manager != NULL, FALSE);
+
+	ret = dbus_g_proxy_call (console->priv->proxy_manager, "CanRestart", &error_local,
+				 G_TYPE_INVALID,
+				 G_TYPE_BOOLEAN, can_restart, G_TYPE_INVALID);
+	if (!ret) {
+		egg_warning ("Couldn't do CanRestart: %s", error_local->message);
+		if (error != NULL)
+			*error = g_error_new (1, 0, "%s", error_local->message);
+		g_error_free (error_local);
+		/* CanRestart was only added in new versions of ConsoleKit,
+		 * so assume true if this failed */
+		*can_restart = TRUE;
+	}
+	return ret;
+}
+
+/**
+ * egg_console_kit_is_local:
+ *
+ * Return value: Returns whether the session is local
+ **/
+gboolean
+egg_console_kit_is_local (EggConsoleKit *console)
+{
+	gboolean ret = FALSE;
+	gboolean value = FALSE;
+	GError *error = NULL;
+
+	g_return_val_if_fail (EGG_IS_CONSOLE_KIT (console), FALSE);
+
+	/* maybe console kit does not know about our session */
+	if (console->priv->proxy_session == NULL) {
+		egg_warning ("no ConsoleKit session");
+		goto out;
+	}
+
+	/* is our session local */
+	ret = dbus_g_proxy_call (console->priv->proxy_session, "IsLocal", &error, G_TYPE_INVALID,
+				 G_TYPE_BOOLEAN, &value, G_TYPE_INVALID);
+	if (!ret) {
+		g_warning ("IsLocal failed: %s", error->message);
+		g_error_free (error);
+		goto out;
+	}
+
+	/* return value only if we successed */
+	ret = value;
+out:
+	return ret;
+}
+
+/**
+ * egg_console_kit_is_active:
+ *
+ * Return value: Returns whether the session is active on the Seat that it is attached to.
+ **/
+gboolean
+egg_console_kit_is_active (EggConsoleKit *console)
+{
+	gboolean ret = FALSE;
+	gboolean value = FALSE;
+	GError *error = NULL;
+
+	g_return_val_if_fail (EGG_IS_CONSOLE_KIT (console), FALSE);
+
+	/* maybe console kit does not know about our session */
+	if (console->priv->proxy_session == NULL) {
+		egg_warning ("no ConsoleKit session");
+		goto out;
+	}
+
+	/* is our session active */
+	ret = dbus_g_proxy_call (console->priv->proxy_session, "IsActive", &error, G_TYPE_INVALID,
+				 G_TYPE_BOOLEAN, &value, G_TYPE_INVALID);
+	if (!ret) {
+		g_warning ("IsActive failed: %s", error->message);
+		g_error_free (error);
+		goto out;
+	}
+
+	/* return value only if we successed */
+	ret = value;
+out:
+	return ret;
+}
+
+/**
+ * egg_console_kit_active_changed_cb:
+ **/
+static void
+egg_console_kit_active_changed_cb (DBusGProxy *proxy, gboolean active, EggConsoleKit *console)
+{
+	egg_debug ("emitting active: %i", active);
+	g_signal_emit (console, signals [EGG_CONSOLE_KIT_ACTIVE_CHANGED], 0, active);
+}
+
+/**
+ * egg_console_kit_class_init:
+ * @klass: The EggConsoleKitClass
+ **/
+static void
+egg_console_kit_class_init (EggConsoleKitClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	object_class->finalize = egg_console_kit_finalize;
+	g_type_class_add_private (klass, sizeof (EggConsoleKitPrivate));
+	signals [EGG_CONSOLE_KIT_ACTIVE_CHANGED] =
+		g_signal_new ("active-changed",
+			      G_TYPE_FROM_CLASS (object_class), G_SIGNAL_RUN_LAST,
+			      G_STRUCT_OFFSET (EggConsoleKitClass, active_changed),
+			      NULL, NULL, g_cclosure_marshal_VOID__BOOLEAN,
+			      G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
+}
+
+/**
+ * egg_console_kit_init:
+ **/
+static void
+egg_console_kit_init (EggConsoleKit *console)
+{
+	gboolean ret;
+	GError *error = NULL;
+	guint32 pid;
+
+	console->priv = EGG_CONSOLE_KIT_GET_PRIVATE (console);
+	console->priv->proxy_manager = NULL;
+	console->priv->session_id = NULL;
+
+	/* connect to D-Bus */
+	console->priv->connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
+	if (console->priv->connection == NULL) {
+		egg_warning ("Failed to connect to the D-Bus daemon: %s", error->message);
+		g_error_free (error);
+		goto out;
+	}
+
+	/* connect to ConsoleKit */
+	console->priv->proxy_manager =
+		dbus_g_proxy_new_for_name (console->priv->connection, CONSOLEKIT_NAME,
+					   CONSOLEKIT_MANAGER_PATH, CONSOLEKIT_MANAGER_INTERFACE);
+	if (console->priv->proxy_manager == NULL) {
+		egg_warning ("cannot connect to ConsoleKit");
+		goto out;
+	}
+
+	/* get the session we are running in */
+	pid = getpid ();
+	ret = dbus_g_proxy_call (console->priv->proxy_manager, "GetSessionForUnixProcess", &error,
+				 G_TYPE_UINT, pid,
+				 G_TYPE_INVALID,
+				 DBUS_TYPE_G_OBJECT_PATH, &console->priv->session_id,
+				 G_TYPE_INVALID);
+	if (!ret) {
+		egg_warning ("Failed to get session for pid %i: %s", pid, error->message);
+		g_error_free (error);
+		goto out;
+	}
+	egg_debug ("ConsoleKit session ID: %s", console->priv->session_id);
+
+	/* connect to session */
+	console->priv->proxy_session =
+		dbus_g_proxy_new_for_name (console->priv->connection, CONSOLEKIT_NAME,
+					   console->priv->session_id, CONSOLEKIT_SESSION_INTERFACE);
+	if (console->priv->proxy_session == NULL) {
+		egg_warning ("cannot connect to: %s", console->priv->session_id);
+		goto out;
+	}
+	dbus_g_proxy_add_signal (console->priv->proxy_session, "ActiveChanged", G_TYPE_BOOLEAN, G_TYPE_INVALID);
+	dbus_g_proxy_connect_signal (console->priv->proxy_session, "ActiveChanged",
+				     G_CALLBACK (egg_console_kit_active_changed_cb), console, NULL);
+
+out:
+	return;
+}
+
+/**
+ * egg_console_kit_finalize:
+ * @object: The object to finalize
+ **/
+static void
+egg_console_kit_finalize (GObject *object)
+{
+	EggConsoleKit *console;
+
+	g_return_if_fail (EGG_IS_CONSOLE_KIT (object));
+
+	console = EGG_CONSOLE_KIT (object);
+
+	g_return_if_fail (console->priv != NULL);
+	if (console->priv->proxy_manager != NULL)
+		g_object_unref (console->priv->proxy_manager);
+	if (console->priv->proxy_session != NULL)
+		g_object_unref (console->priv->proxy_session);
+	g_free (console->priv->session_id);
+
+	G_OBJECT_CLASS (egg_console_kit_parent_class)->finalize (object);
+}
+
+/**
+ * egg_console_kit_new:
+ *
+ * Return value: a new EggConsoleKit object.
+ **/
+EggConsoleKit *
+egg_console_kit_new (void)
+{
+	if (egg_console_kit_object != NULL) {
+		g_object_ref (egg_console_kit_object);
+	} else {
+		egg_console_kit_object = g_object_new (EGG_TYPE_CONSOLE_KIT, NULL);
+		g_object_add_weak_pointer (egg_console_kit_object, &egg_console_kit_object);
+	}
+
+	return EGG_CONSOLE_KIT (egg_console_kit_object);
+}
+