diff options
Diffstat (limited to 'src/gpm-kbd-backlight.c')
| -rw-r--r-- | src/gpm-kbd-backlight.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/gpm-kbd-backlight.c b/src/gpm-kbd-backlight.c index bb7e9c0..e192bac 100644 --- a/src/gpm-kbd-backlight.c +++ b/src/gpm-kbd-backlight.c @@ -59,8 +59,129 @@ enum { static guint signals [LAST_SIGNAL] = { 0 }; +static const gchar gpm_kbd_backlight_introspection_xml[] = + "<node>" + " <interface name='org.mate.PowerManager.KbdBacklight'>" + " <method name='GetBrightness'>" + " <arg type='u' name='percentage_brightness' direction='out'/>" + " </method>" + " <method name='SetBrightness'>" + " <arg type='u' name='percentage_brightness' direction='in'/>" + " </method>" + " <signal name='BrightnessChanged'>" + " <arg type='u' name='percentage_brightness' direction='out'/>" + " </signal>" + " </interface>" + "</node>"; + G_DEFINE_TYPE_WITH_PRIVATE (GpmKbdBacklight, gpm_kbd_backlight, G_TYPE_OBJECT) +static void +gpm_kbd_backlight_dbus_emit_brightness_changed (GpmKbdBacklight *backlight, + guint value, + gpointer user_data) +{ + GError *error = NULL; + + if (backlight->priv->bus_connection == NULL) + return; + + g_dbus_connection_emit_signal (backlight->priv->bus_connection, + NULL, + GPM_DBUS_PATH_KBD_BACKLIGHT, + GPM_DBUS_INTERFACE_KBD_BACKLIGHT, + "BrightnessChanged", + g_variant_new ("(u)", value), + &error); + if (error != NULL) { + g_warning ("Failed to emit keyboard backlight D-Bus signal: %s", error->message); + g_error_free (error); + } +} + +static void +gpm_kbd_backlight_dbus_method_call (GDBusConnection *connection, + G_GNUC_UNUSED const gchar *sender, + G_GNUC_UNUSED const gchar *object_path, + G_GNUC_UNUSED const gchar *interface_name, + const gchar *method_name, + GVariant *parameters, + GDBusMethodInvocation *invocation, + gpointer user_data) +{ + GpmKbdBacklight *backlight = GPM_KBD_BACKLIGHT (user_data); + GError *error = NULL; + guint brightness; + + if (g_strcmp0 (method_name, "GetBrightness") == 0) { + if (gpm_kbd_backlight_get_brightness (backlight, &brightness, &error)) { + g_dbus_method_invocation_return_value (invocation, + g_variant_new ("(u)", brightness)); + } else { + g_dbus_method_invocation_return_gerror (invocation, error); + g_error_free (error); + } + return; + } + + if (g_strcmp0 (method_name, "SetBrightness") == 0) { + g_variant_get (parameters, "(u)", &brightness); + if (gpm_kbd_backlight_set_brightness (backlight, brightness, &error)) { + g_dbus_method_invocation_return_value (invocation, NULL); + } else { + g_dbus_method_invocation_return_gerror (invocation, error); + g_error_free (error); + } + return; + } + + g_dbus_method_invocation_return_error (invocation, + G_IO_ERROR, + G_IO_ERROR_NOT_SUPPORTED, + "Method %s is not supported", + method_name); +} + +static const GDBusInterfaceVTable gpm_kbd_backlight_interface_vtable = { + gpm_kbd_backlight_dbus_method_call, + NULL, + NULL, + { 0 } +}; + +void +gpm_kbd_backlight_register_dbus (GpmKbdBacklight *backlight, + GDBusConnection *connection, + GError **error) +{ + GDBusNodeInfo *node_info; + + g_return_if_fail (GPM_IS_KBD_BACKLIGHT (backlight)); + g_return_if_fail (G_IS_DBUS_CONNECTION (connection)); + + if (backlight->priv->bus_connection != NULL) + return; + + node_info = g_dbus_node_info_new_for_xml (gpm_kbd_backlight_introspection_xml, error); + if (node_info == NULL) + return; + + backlight->priv->bus_object_id = + g_dbus_connection_register_object (connection, + GPM_DBUS_PATH_KBD_BACKLIGHT, + node_info->interfaces[0], + &gpm_kbd_backlight_interface_vtable, + backlight, + NULL, + error); + g_dbus_node_info_unref (node_info); + + if (backlight->priv->bus_object_id == 0) + return; + + backlight->priv->bus_connection = g_object_ref (connection); +} + /** * gpm_kbd_backlight_error_quark: * Return value: Our personal error quark. @@ -602,6 +723,11 @@ gpm_kbd_backlight_init (GpmKbdBacklight *backlight) GError *error = NULL; backlight->priv = gpm_kbd_backlight_get_instance_private (backlight); + backlight->priv->bus_connection = NULL; + backlight->priv->bus_object_id = 0; + + g_signal_connect (backlight, "brightness-changed", + G_CALLBACK (gpm_kbd_backlight_dbus_emit_brightness_changed), NULL); backlight->priv->upower_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES, |