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libmalcontent: Add MctManager::app-filter-changed signal 

This is emitted when the app filter for a given user changes.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://gitlab.freedesktop.org/pwithnall/malcontent/issues/1
This commit is contained in:
Philip Withnall 2019-04-24 13:15:26 +01:00
parent 68ebe8b568
commit 2048f0d483
1 changed files with 86 additions and 0 deletions
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86
libmalcontent/manager.c
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@ -44,6 +44,7 @@ struct _MctManager
GObject parent_instance;
GDBusConnection *connection; /* (owned) */
guint user_changed_id;
};
G_DEFINE_TYPE (MctManager, mct_manager, G_TYPE_OBJECT)
@ -104,11 +105,47 @@ mct_manager_set_property (GObject *object,
}
}
static void _mct_manager_user_changed_cb (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data);
static void
mct_manager_constructed (GObject *object)
{
MctManager *self = MCT_MANAGER (object);
/* Chain up. */
G_OBJECT_CLASS (mct_manager_parent_class)->constructed (object);
/* Connect to notifications from AccountsService. */
g_assert (self->connection != NULL);
self->user_changed_id =
g_dbus_connection_signal_subscribe (self->connection,
"org.freedesktop.Accounts", /* sender */
"org.freedesktop.Accounts.User", /* interface name */
"Changed", /* signal name */
NULL, /* object path */
NULL, /* arg0 */
G_DBUS_SIGNAL_FLAGS_NONE,
_mct_manager_user_changed_cb,
self, NULL);
}
static void
mct_manager_dispose (GObject *object)
{
MctManager *self = MCT_MANAGER (object);
if (self->user_changed_id != 0 && self->connection != NULL)
{
g_dbus_connection_signal_unsubscribe (self->connection,
self->user_changed_id);
self->user_changed_id = 0;
}
g_clear_object (&self->connection);
G_OBJECT_CLASS (mct_manager_parent_class)->dispose (object);
@ -119,6 +156,7 @@ mct_manager_class_init (MctManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = mct_manager_constructed;
object_class->dispose = mct_manager_dispose;
object_class->get_property = mct_manager_get_property;
object_class->set_property = mct_manager_set_property;
@ -143,6 +181,21 @@ mct_manager_class_init (MctManagerClass *klass)
g_object_class_install_properties (object_class,
G_N_ELEMENTS (props),
props);
/**
* MctManager::app-filter-changed:
* @self: a #MctManager
* @user_id: UID of the user whose app filter has changed
*
* Emitted when the app filter stored for a user changes.
*
* Since: 0.3.0
*/
g_signal_new ("app-filter-changed", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0, NULL, NULL, NULL,
G_TYPE_NONE, 1,
G_TYPE_UINT64);
}
/**
@ -164,6 +217,39 @@ mct_manager_new (GDBusConnection *connection)
NULL);
}
static void
_mct_manager_user_changed_cb (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
MctManager *manager = MCT_MANAGER (user_data);
g_autoptr(GError) local_error = NULL;
const gchar *uid_str;
guint64 uid;
g_assert (g_str_equal (interface_name, "org.freedesktop.Accounts.User"));
g_assert (g_str_equal (signal_name, "Changed"));
/* Extract the UID from the object path. This is a bit hacky, but probably
* better than depending on libaccountsservice just for this. */
if (!g_str_has_prefix (object_path, "/org/freedesktop/Accounts/User"))
return;
uid_str = object_path + strlen ("/org/freedesktop/Accounts/User");
if (!g_ascii_string_to_unsigned (uid_str, 10, 0, G_MAXUINT64, &uid, &local_error))
{
g_warning ("Error converting object path ‘%s’ to user ID: %s",
object_path, local_error->message);
g_clear_error (&local_error);
}
g_signal_emit_by_name (manager, "app-filter-changed", uid);
}
/**
* _mct_app_filter_build_app_filter_variant:
* @filter: an #MctAppFilter