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/*
* evolution-network-manager.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*/
#include <gio/gio.h>
#include <NetworkManager/NetworkManager.h>
#include <shell/e-shell.h>
#include <e-util/e-extension.h>
/* Standard GObject macros */
#define E_TYPE_NETWORK_MANAGER \
(e_network_manager_get_type ())
#define E_NETWORK_MANAGER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST \
((obj), E_TYPE_NETWORK_MANAGER, ENetworkManager))
typedef struct _ENetworkManager ENetworkManager;
typedef struct _ENetworkManagerClass ENetworkManagerClass;
struct _ENetworkManager {
EExtension parent;
GDBusConnection *connection;
};
struct _ENetworkManagerClass {
EExtensionClass parent_class;
};
/* Module Entry Points */
void e_module_load (GTypeModule *type_module);
void e_module_unload (GTypeModule *type_module);
/* Forward Declarations */
GType e_network_manager_get_type (void);
static gboolean network_manager_connect (ENetworkManager *extension);
G_DEFINE_DYNAMIC_TYPE (ENetworkManager, e_network_manager, E_TYPE_EXTENSION)
static EShell *
network_manager_get_shell (ENetworkManager *extension)
{
EExtensible *extensible;
extensible = e_extension_get_extensible (E_EXTENSION (extension));
return E_SHELL (extensible);
}
static void
nm_connection_closed_cb (GDBusConnection *pconnection,
gboolean remote_peer_vanished,
GError *error,
ENetworkManager *extension)
{
g_object_unref (extension->connection);
extension->connection = NULL;
g_timeout_add_seconds (
3, (GSourceFunc) network_manager_connect, extension);
}
static void
network_manager_signal_cb (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
ENetworkManager *extension = user_data;
EShell *shell;
guint32 state;
shell = network_manager_get_shell (extension);
if (g_strcmp0 (interface_name, NM_DBUS_INTERFACE) != 0
|| g_strcmp0 (signal_name, "StateChanged") != 0)
return;
g_variant_get (parameters, "(u)", &state);
switch (state) {
case NM_STATE_CONNECTED:
e_shell_set_network_available (shell, TRUE);
break;
case NM_STATE_ASLEEP:
case NM_STATE_DISCONNECTED:
e_shell_set_network_available (shell, FALSE);
break;
default:
break;
}
}
static void
network_manager_check_initial_state (ENetworkManager *extension)
{
EShell *shell;
GDBusMessage *message = NULL;
GDBusMessage *response = NULL;
guint32 state = -1;
GError *error = NULL;
shell = network_manager_get_shell (extension);
message = g_dbus_message_new_method_call (
NM_DBUS_SERVICE, NM_DBUS_PATH, NM_DBUS_INTERFACE, "state");
/* XXX Assuming this should be safe to call synchronously. */
response = g_dbus_connection_send_message_with_reply_sync (
extension->connection, message,
G_DBUS_SEND_MESSAGE_FLAGS_NONE, 100, NULL, NULL, &error);
if (response != NULL) {
GVariant *body = g_dbus_message_get_body (response);
g_variant_get (body, "(u)", &state);
} else {
g_warning ("%s: %s", G_STRFUNC, error ? error->message : "Unknown error");
if (error)
g_error_free (error);
g_object_unref (message);
return;
}
/* Update the state only in the absence of a network connection,
* otherwise let the old state prevail. */
if (state == NM_STATE_ASLEEP || state == NM_STATE_DISCONNECTED)
e_shell_set_network_available (shell, FALSE);
g_object_unref (message);
g_object_unref (response);
}
static gboolean
network_manager_connect (ENetworkManager *extension)
{
GError *error = NULL;
/* This is a timeout callback, so the return value denotes
* whether to reschedule, not whether we're successful. */
if (extension->connection != NULL)
return FALSE;
extension->connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
if (extension->connection == NULL) {
g_warning ("%s: %s", G_STRFUNC, error ? error->message : "Unknown error");
g_error_free (error);
return TRUE;
}
g_dbus_connection_set_exit_on_close (extension->connection, FALSE);
if (!g_dbus_connection_signal_subscribe (
extension->connection,
NM_DBUS_SERVICE,
NM_DBUS_INTERFACE,
NULL,
NM_DBUS_PATH,
NULL,
G_DBUS_SIGNAL_FLAGS_NONE,
network_manager_signal_cb,
extension,
NULL)) {
g_warning ("%s: Failed to subscribe for a signal", G_STRFUNC);
goto fail;
}
g_signal_connect (
extension->connection, "closed",
G_CALLBACK (nm_connection_closed_cb), extension);
network_manager_check_initial_state (extension);
return FALSE;
fail:
g_object_unref (extension->connection);
extension->connection = NULL;
return TRUE;
}
static void
network_manager_constructed (GObject *object)
{
network_manager_connect (E_NETWORK_MANAGER (object));
}
static void
e_network_manager_class_init (ENetworkManagerClass *class)
{
GObjectClass *object_class;
EExtensionClass *extension_class;
object_class = G_OBJECT_CLASS (class);
object_class->constructed = network_manager_constructed;
extension_class = E_EXTENSION_CLASS (class);
extension_class->extensible_type = E_TYPE_SHELL;
}
static void
e_network_manager_class_finalize (ENetworkManagerClass *class)
{
}
static void
e_network_manager_init (ENetworkManager *extension)
{
}
G_MODULE_EXPORT void
e_module_load (GTypeModule *type_module)
{
e_network_manager_register_type (type_module);
}
G_MODULE_EXPORT void
e_module_unload (GTypeModule *type_module)
{
}
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