Adding a service management interface into libindicators as many will use that.

1 files changed, 334 insertions, 0 deletions

diff --git a/libindicator/indicator-service-manager.c b/libindicator/indicator-service-manager.c
new file mode 100644
index 0000000..4eaed23
--- /dev/null
+++ b/libindicator/indicator-service-manager.c
@@ -0,0 +1,334 @@
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <dbus/dbus-glib-bindings.h>
+#include <dbus/dbus-glib-lowlevel.h>
+
+#include "indicator-service-manager.h"
+#include "indicator-service-client.h"
+#include "dbus-shared.h"
+
+/* Private Stuff */
+typedef struct _IndicatorServiceManagerPrivate IndicatorServiceManagerPrivate;
+struct _IndicatorServiceManagerPrivate {
+	gchar * name;
+	DBusGProxy * dbus_proxy;
+	DBusGProxy * service_proxy;
+	gboolean connected;
+};
+
+/* Signals Stuff */
+enum {
+	CONNECTION_CHANGE,
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+
+/* Properties */
+/* Enum for the properties so that they can be quickly
+   found and looked up. */
+enum {
+	PROP_0,
+	PROP_NAME,
+};
+
+/* The strings so that they can be slowly looked up. */
+#define PROP_NAME_S                    "name"
+
+/* GObject Stuff */
+#define INDICATOR_SERVICE_MANAGER_GET_PRIVATE(o) \
+(G_TYPE_INSTANCE_GET_PRIVATE ((o), INDICATOR_SERVICE_MANAGER_TYPE, IndicatorServiceManagerPrivate))
+
+static void indicator_service_manager_class_init (IndicatorServiceManagerClass *klass);
+static void indicator_service_manager_init       (IndicatorServiceManager *self);
+static void indicator_service_manager_dispose    (GObject *object);
+static void indicator_service_manager_finalize   (GObject *object);
+
+/* Prototypes */
+static void set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec);
+static void get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec);
+static void start_service (IndicatorServiceManager * service);
+
+G_DEFINE_TYPE (IndicatorServiceManager, indicator_service_manager, G_TYPE_OBJECT);
+
+static void
+indicator_service_manager_class_init (IndicatorServiceManagerClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	g_type_class_add_private (klass, sizeof (IndicatorServiceManagerPrivate));
+
+	object_class->dispose = indicator_service_manager_dispose;
+	object_class->finalize = indicator_service_manager_finalize;
+
+	/* Property funcs */
+	object_class->set_property = set_property;
+	object_class->get_property = get_property;
+
+	/**
+		IndicatorServiceManager::connecton-change:
+		@arg0: The #IndicatorServiceManager object
+		@arg1: The state of the connection, TRUE is connected.
+		
+		Signaled when the service is connected or disconnected
+		depending on it's previous state.
+	*/
+	signals[CONNECTION_CHANGE] = g_signal_new (INDICATOR_SERVICE_MANAGER_SIGNAL_CONNECTION_CHANGE,
+	                                  G_TYPE_FROM_CLASS(klass),
+	                                  G_SIGNAL_RUN_LAST,
+	                                  G_STRUCT_OFFSET (IndicatorServiceManagerClass, connection_change),
+	                                  NULL, NULL,
+	                                  g_cclosure_marshal_VOID__BOOLEAN,
+	                                  G_TYPE_NONE, 1, G_TYPE_BOOLEAN, G_TYPE_NONE);
+
+	/* Properties */
+	g_object_class_install_property(object_class, PROP_NAME,
+	                                g_param_spec_string(PROP_NAME_S,
+	                                                    "The DBus name for the service to monitor",
+	                                                    "This is the name that should be used to start a service.",
+	                                                    NULL,
+	                                                    G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+	return;
+}
+
+static void
+indicator_service_manager_init (IndicatorServiceManager *self)
+{
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(self);
+
+	/* Get the private variables in a decent state */
+	priv->name = NULL;
+	priv->dbus_proxy = NULL;
+	priv->service_proxy = NULL;
+	priv->connected = FALSE;
+
+	/* Start talkin' dbus */
+	GError * error = NULL;
+	DBusGConnection * session_bus = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
+	if (error != NULL) {
+		g_error("Unable to get session bus: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+
+	priv->dbus_proxy = dbus_g_proxy_new_for_name_owner(session_bus,
+	                                                   DBUS_SERVICE_DBUS,
+	                                                   DBUS_PATH_DBUS,
+	                                                   DBUS_INTERFACE_DBUS,
+	                                                   &error);
+	if (error != NULL) {
+		g_error("Unable to get the proxy to DBus: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+
+	return;
+}
+
+static void
+indicator_service_manager_dispose (GObject *object)
+{
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(object);
+
+	/* If we were connected we need to make sure to
+	   tell people that it's no longer the case. */
+	if (priv->connected) {
+		priv->connected = FALSE;
+		g_signal_emit(object, signals[CONNECTION_CHANGE], 0, FALSE, TRUE);
+	}
+
+	/* Destory our DBus proxy, we won't need it. */
+	if (priv->dbus_proxy != NULL) {
+		g_object_unref(G_OBJECT(priv->dbus_proxy));
+		priv->dbus_proxy = NULL;
+	}
+
+	/* Destory our service proxy, we won't need it. */
+	if (priv->service_proxy != NULL) {
+		g_object_unref(G_OBJECT(priv->service_proxy));
+		priv->service_proxy = NULL;
+	}
+
+	/* Let's see if our parents want to do anything. */
+	G_OBJECT_CLASS (indicator_service_manager_parent_class)->dispose (object);
+	return;
+}
+
+static void
+indicator_service_manager_finalize (GObject *object)
+{
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(object);
+
+	if (priv->name != NULL) {
+		g_free(priv->name);
+		priv->name = NULL;
+	}
+
+	G_OBJECT_CLASS (indicator_service_manager_parent_class)->finalize (object);
+	return;
+}
+
+static void
+set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+	IndicatorServiceManager * self = INDICATOR_SERVICE_MANAGER(object);
+	g_return_if_fail(self != NULL);
+
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(self);
+	g_return_if_fail(priv != NULL);
+
+	switch (prop_id) {
+	/* *********************** */
+	case PROP_NAME:
+		if (G_VALUE_HOLDS_STRING(value)) {
+			if (priv->name != NULL) {
+				g_error("Name can not be set twice!");
+				return;
+			}
+			priv->name = g_value_dup_string(value);
+			start_service(self);
+		} else {
+			g_warning("Name is a string bud.");
+		}
+		break;
+	/* *********************** */
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+
+	return;
+}
+
+static void
+get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
+{
+	IndicatorServiceManager * self = INDICATOR_SERVICE_MANAGER(object);
+	g_return_if_fail(self != NULL);
+
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(self);
+	g_return_if_fail(priv != NULL);
+
+	switch (prop_id) {
+	/* *********************** */
+	case PROP_NAME:
+		if (G_VALUE_HOLDS_STRING(value)) {
+			g_value_set_string(value, priv->name);
+		} else {
+			g_warning("Name is a string bud.");
+		}
+		break;
+	/* *********************** */
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+
+	return;
+}
+
+static void
+watch_cb (DBusGProxy * proxy, gint service_version, GError * error, gpointer user_data)
+{
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(user_data);
+
+	if (error != NULL) {
+		g_warning("Unable to set watch on '%s': '%s'", priv->name, error->message);
+		g_error_free(error);
+		return;
+	}
+
+	if (service_version != INDICATOR_SERVICE_VERSION) {
+		g_warning("Service is using a different version of the service interface.  Expecting %d and got %d.", INDICATOR_SERVICE_VERSION, service_version);
+		return;
+	}
+
+	if (!priv->connected) {
+		priv->connected = TRUE;
+		g_signal_emit(G_OBJECT(user_data), signals[CONNECTION_CHANGE], 0, TRUE, TRUE);
+	}
+
+	return;
+}
+
+static void
+start_service_cb (DBusGProxy * proxy, guint status, GError * error, gpointer user_data)
+{
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(user_data);
+
+	if (error != NULL) {
+		g_warning("Unable to start service '%s': %s", priv->name, error->message);
+		return;
+	}
+
+	if (status != DBUS_START_REPLY_SUCCESS && status != DBUS_START_REPLY_ALREADY_RUNNING) {
+		g_warning("Status of starting the process '%s' was an error: %d", priv->name, status);
+		return;
+	}
+
+	/* Woot! it's running.  Let's do it some more. */
+	DBusGConnection * session_bus = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
+	if (error != NULL) {
+		g_error("Unable to get session bus: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+
+	priv->service_proxy = dbus_g_proxy_new_for_name_owner(session_bus,
+	                                                  priv->name,
+	                                                  INDICATOR_SERVICE_OBJECT,
+	                                                  INDICATOR_SERVICE_INTERFACE,
+	                                                  &error);
+
+	org_ayatana_indicator_service_watch_async(priv->service_proxy,
+	                                          watch_cb,
+	                                          user_data);
+
+	return;
+}
+
+static void
+start_service (IndicatorServiceManager * service)
+{
+	IndicatorServiceManagerPrivate * priv = INDICATOR_SERVICE_MANAGER_GET_PRIVATE(service);
+
+	g_return_if_fail(priv->dbus_proxy != NULL);
+	g_return_if_fail(priv->name != NULL);
+
+	org_freedesktop_DBus_start_service_by_name_async (priv->dbus_proxy,
+	                                                  priv->name,
+	                                                  0,
+	                                                  start_service_cb,
+	                                                  service);
+
+	return;
+}
+
+/* API */
+IndicatorServiceManager *
+indicator_service_manager_new (gchar * dbus_name)
+{
+	GObject * obj = g_object_new(INDICATOR_SERVICE_MANAGER_TYPE,
+	                             PROP_NAME_S, dbus_name,
+	                             NULL);
+
+	return INDICATOR_SERVICE_MANAGER(obj);
+}
+
+gboolean
+indicator_service_manager_connected (IndicatorServiceManager * sm)
+{
+
+	return FALSE;
+}
+
+void
+indicator_service_manager_set_refresh (IndicatorServiceManager * sm, guint time_in_ms)
+{
+
+	return;
+}