Creating a status provider object for Mission Control 5 based on the Telepathy one.

1 files changed, 383 insertions, 0 deletions

diff --git a/src/status-provider-mc5.c b/src/status-provider-mc5.c
new file mode 100644
index 0000000..300818d
--- /dev/null
+++ b/src/status-provider-mc5.c
@@ -0,0 +1,383 @@
+/*
+A small wrapper utility to load indicators and put them as menu items
+into the gnome-panel using it's applet interface.
+
+Copyright 2009 Canonical Ltd.
+
+Authors:
+    Ted Gould <ted@canonical.com>
+
+This program is free software: you can redistribute it and/or modify it 
+under the terms of the GNU General Public License version 3, as published 
+by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful, but 
+WITHOUT ANY WARRANTY; without even the implied warranties of 
+MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "status-provider.h"
+#include "status-provider-mc5.h"
+#include "status-provider-mc5-marshal.h"
+
+#include <dbus/dbus-glib.h>
+
+typedef enum {
+	MC_STATUS_UNSET,
+	MC_STATUS_OFFLINE,
+	MC_STATUS_AVAILABLE,
+	MC_STATUS_AWAY,
+	MC_STATUS_EXTENDED_AWAY,
+	MC_STATUS_HIDDEN,
+	MC_STATUS_DND
+} mc_status_t;
+
+static StatusProviderStatus mc_to_sp_map[] = {
+	/* MC_STATUS_UNSET,         */  STATUS_PROVIDER_STATUS_OFFLINE,
+	/* MC_STATUS_OFFLINE,       */  STATUS_PROVIDER_STATUS_OFFLINE,
+	/* MC_STATUS_AVAILABLE,     */  STATUS_PROVIDER_STATUS_ONLINE,
+	/* MC_STATUS_AWAY,          */  STATUS_PROVIDER_STATUS_AWAY,
+	/* MC_STATUS_EXTENDED_AWAY, */  STATUS_PROVIDER_STATUS_AWAY,
+	/* MC_STATUS_HIDDEN,        */  STATUS_PROVIDER_STATUS_INVISIBLE,
+	/* MC_STATUS_DND            */  STATUS_PROVIDER_STATUS_DND
+};
+
+static mc_status_t sp_to_mc_map[] = {
+	/* STATUS_PROVIDER_STATUS_ONLINE,  */  MC_STATUS_AVAILABLE,
+	/* STATUS_PROVIDER_STATUS_AWAY,    */  MC_STATUS_AWAY,
+	/* STATUS_PROVIDER_STATUS_DND      */  MC_STATUS_DND,
+	/* STATUS_PROVIDER_STATUS_INVISIBLE*/  MC_STATUS_HIDDEN,
+	/* STATUS_PROVIDER_STATUS_OFFLINE  */  MC_STATUS_OFFLINE,
+	/* STATUS_PROVIDER_STATUS_DISCONNECTED*/MC_STATUS_OFFLINE
+};
+
+typedef struct _StatusProviderMC5Private StatusProviderMC5Private;
+struct _StatusProviderMC5Private {
+	DBusGProxy * proxy;
+	DBusGProxy * dbus_proxy;
+	mc_status_t  mc_status;
+};
+
+#define STATUS_PROVIDER_MC5_GET_PRIVATE(o) \
+(G_TYPE_INSTANCE_GET_PRIVATE ((o), STATUS_PROVIDER_MC5_TYPE, StatusProviderMC5Private))
+
+/* Prototypes */
+/* GObject stuff */
+static void status_provider_mc5_class_init (StatusProviderMC5Class *klass);
+static void status_provider_mc5_init       (StatusProviderMC5 *self);
+static void status_provider_mc5_dispose    (GObject *object);
+static void status_provider_mc5_finalize   (GObject *object);
+/* Internal Funcs */
+static void build_mc5_proxy (StatusProviderMC5 * self);
+static void dbus_namechange (DBusGProxy * proxy, const gchar * name, const gchar * prev, const gchar * new, StatusProviderMC5 * self);
+static void set_status (StatusProvider * sp, StatusProviderStatus status);
+static StatusProviderStatus get_status (StatusProvider * sp);
+static void changed_status (DBusGProxy * proxy, guint status, gchar * message, StatusProvider * sp);
+static void proxy_destroy (DBusGProxy * proxy, StatusProvider * sp);
+static void get_status_async (DBusGProxy * proxy, DBusGProxyCall * call, gpointer userdata);
+
+G_DEFINE_TYPE (StatusProviderMC5, status_provider_mc5, STATUS_PROVIDER_TYPE);
+
+static void
+status_provider_mc5_class_init (StatusProviderMC5Class *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	g_type_class_add_private (klass, sizeof (StatusProviderMC5Private));
+
+	object_class->dispose = status_provider_mc5_dispose;
+	object_class->finalize = status_provider_mc5_finalize;
+
+	StatusProviderClass * spclass = STATUS_PROVIDER_CLASS(klass);
+
+	spclass->set_status = set_status;
+	spclass->get_status = get_status;
+
+	return;
+}
+
+
+static void
+status_provider_mc5_init (StatusProviderMC5 *self)
+{
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(self);
+
+	priv->proxy = NULL;
+	priv->dbus_proxy = NULL;
+	priv->mc_status = MC_STATUS_OFFLINE;
+
+	GError * error = NULL;
+
+	/* Grabbing the session bus */
+	DBusGConnection * bus = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
+	if (bus == NULL) {
+		g_warning("Unable to connect to Session Bus: %s", error == NULL ? "No message" : error->message);
+		g_error_free(error);
+		return;
+	}
+
+	/* Set up the dbus Proxy */
+	priv->dbus_proxy = dbus_g_proxy_new_for_name_owner (bus,
+	                                                    DBUS_SERVICE_DBUS,
+	                                                    DBUS_PATH_DBUS,
+	                                                    DBUS_INTERFACE_DBUS,
+	                                                    &error);
+	if (error != NULL) {
+		g_warning("Unable to connect to DBus events: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+
+	/* Configure the name owner changing */
+	dbus_g_proxy_add_signal(priv->dbus_proxy, "NameOwnerChanged",
+	                        G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING,
+							G_TYPE_INVALID);
+	dbus_g_proxy_connect_signal(priv->dbus_proxy, "NameOwnerChanged",
+	                        G_CALLBACK(dbus_namechange),
+	                        self, NULL);
+
+	build_mc5_proxy(self);
+
+	return;
+}
+
+/* Builds up the proxy to Mission Control and configures all of the
+   signals for getting info from the proxy.  Also does a call to get
+   the inital value of the status. */
+static void
+build_mc5_proxy (StatusProviderMC5 * self)
+{
+	g_debug("Building MC5 Proxy");
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(self);
+
+	if (priv->proxy != NULL) {
+		g_debug("Hmm, being asked to build a proxy we alredy have.");
+		return;
+	}
+
+	GError * error = NULL;
+
+	/* Grabbing the session bus */
+	DBusGConnection * session_bus = dbus_g_bus_get(DBUS_BUS_SESSION, &error);
+	if (session_bus == NULL) {
+		g_warning("Unable to connect to Session Bus: %s", error == NULL ? "No message" : error->message);
+		g_error_free(error);
+		return;
+	}
+
+	/* Get the proxy to Mission Control */
+	priv->proxy = dbus_g_proxy_new_for_name_owner(session_bus,
+	                         "org.freedesktop.Telepathy.MissionControl5",
+	                        "/org/freedesktop/Telepathy/MissionControl5",
+	                         "org.freedesktop.Telepathy.MissionControl5",
+	                         &error);
+
+	if (priv->proxy != NULL) {
+		/* If it goes, we set the proxy to NULL */
+		g_object_add_weak_pointer (G_OBJECT(priv->proxy), (gpointer *)&priv->proxy);
+		/* And we clean up other variables associated */
+		g_signal_connect(G_OBJECT(priv->proxy), "destroy",
+		                 G_CALLBACK(proxy_destroy), self);
+
+		/* Set up the signal handler for watching when status changes. */
+		dbus_g_object_register_marshaller(_status_provider_mc5_marshal_VOID__UINT_STRING,
+		                            G_TYPE_NONE,
+		                            G_TYPE_UINT,
+		                            G_TYPE_STRING,
+		                            G_TYPE_INVALID);
+		dbus_g_proxy_add_signal    (priv->proxy,
+		                            "PresenceChanged",
+		                            G_TYPE_UINT,
+		                            G_TYPE_STRING,
+		                            G_TYPE_INVALID);
+		dbus_g_proxy_connect_signal(priv->proxy,
+		                            "PresenceChanged",
+		                            G_CALLBACK(changed_status),
+		                            (void *)self,
+		                            NULL);
+
+		/* Do a get here, to init the status */
+		dbus_g_proxy_begin_call(priv->proxy,
+		                        "GetStatus",
+		                        get_status_async,
+		                        self,
+		                        NULL,
+		                        G_TYPE_INVALID);
+	} else {
+		g_warning("Unable to connect to Mission Control");
+		if (error != NULL) {
+			g_error_free(error);
+		}
+	}
+
+	return;
+}
+
+/* Watch to see if the Mission Control comes up on Dbus */
+static void
+dbus_namechange (DBusGProxy * proxy, const gchar * name, const gchar * prev, const gchar * new, StatusProviderMC5 * self)
+{
+	g_return_if_fail(name != NULL);
+	g_return_if_fail(new != NULL);
+
+	if (g_strcmp0(name, "org.freedesktop.Telepathy.MissionControl5") == 0) {
+		build_mc5_proxy(self);
+	}
+	return;
+}
+
+static void
+status_provider_mc5_dispose (GObject *object)
+{
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(object);
+
+	if (priv->proxy != NULL) {
+		g_object_unref(priv->proxy);
+		priv->proxy = NULL;
+	}
+
+	G_OBJECT_CLASS (status_provider_mc5_parent_class)->dispose (object);
+	return;
+}
+
+static void
+status_provider_mc5_finalize (GObject *object)
+{
+
+	G_OBJECT_CLASS (status_provider_mc5_parent_class)->finalize (object);
+	return;
+}
+
+/**
+	status_provider_mc5_new:
+
+	Creates a new #StatusProviderMC5 object.  No parameters or anything
+	like that.  Just a convience function.
+
+	Return value: A new instance of #StatusProviderMC5
+*/
+StatusProvider *
+status_provider_mc5_new (void)
+{
+	return STATUS_PROVIDER(g_object_new(STATUS_PROVIDER_MC5_TYPE, NULL));
+}
+
+static void
+set_status (StatusProvider * sp, StatusProviderStatus status)
+{
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(sp);
+	if (priv->proxy == NULL) {
+		priv->mc_status = MC_STATUS_OFFLINE;
+		return;
+	}
+
+	priv->mc_status = sp_to_mc_map[status];	
+
+	guint mcstatus = MC_STATUS_UNSET;
+	gboolean ret = FALSE;
+	GError * error = NULL;
+
+	ret = dbus_g_proxy_call(priv->proxy,
+	                        "GetPresence", &error,
+	                        G_TYPE_INVALID,
+	                        G_TYPE_UINT, &priv->mc_status,
+	                        G_TYPE_INVALID);
+
+	/* If we can't get the  get call to work, let's not set */
+	if (!ret) {
+		if (error != NULL) {
+			g_error_free(error);
+		}
+		return;
+	}
+	
+	/* If the get call doesn't return a status, that means that there
+	   are no clients connected.  We don't want to connect them by telling
+	   MC that we're going online -- we'd like to be more passive than that. */
+	if (mcstatus == MC_STATUS_UNSET) {
+		return;
+	}
+
+	ret = dbus_g_proxy_call(priv->proxy,
+	                        "SetPresence", &error,
+	                        G_TYPE_UINT, priv->mc_status,
+	                        G_TYPE_STRING, "",
+	                        G_TYPE_INVALID,
+	                        G_TYPE_INVALID);
+
+	if (!ret) {
+		if (error != NULL) {
+			g_warning("Unable to set Mission Control Presence: %s", error->message);
+			g_error_free(error);
+		} else {
+			g_warning("Unable to set Mission Control Presence");
+		}
+		return;
+	}
+
+	return;
+}
+
+static StatusProviderStatus
+get_status (StatusProvider * sp)
+{
+	g_return_val_if_fail(IS_STATUS_PROVIDER_MC5(sp), STATUS_PROVIDER_STATUS_DISCONNECTED);
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(sp);
+
+	if (priv->proxy == NULL) {
+		return STATUS_PROVIDER_STATUS_DISCONNECTED;
+	}
+
+	return mc_to_sp_map[priv->mc_status];
+}
+
+static void
+changed_status (DBusGProxy * proxy, guint status, gchar * message, StatusProvider * sp)
+{
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(sp);
+	priv->mc_status = status;
+	g_signal_emit(G_OBJECT(sp), STATUS_PROVIDER_SIGNAL_STATUS_CHANGED_ID, 0, mc_to_sp_map[priv->mc_status], TRUE);
+}
+
+static void
+proxy_destroy (DBusGProxy * proxy, StatusProvider * sp)
+{
+	g_debug("Signal: Mission Control proxy destroyed");
+	g_signal_emit(G_OBJECT(sp), STATUS_PROVIDER_SIGNAL_STATUS_CHANGED_ID, 0, STATUS_PROVIDER_STATUS_OFFLINE, TRUE);
+	return;
+}
+
+static void
+get_status_async (DBusGProxy * proxy, DBusGProxyCall * call, gpointer userdata)
+{
+	GError * error = NULL;
+	guint status = 0;
+	if (!dbus_g_proxy_end_call(proxy, call, &error, G_TYPE_UINT, &status, G_TYPE_INVALID)) {
+		g_warning("Unable to get type from Mission Control: %s", error->message);
+		g_error_free(error);
+		return;
+	}
+
+	StatusProviderMC5Private * priv = STATUS_PROVIDER_MC5_GET_PRIVATE(userdata);
+
+	gboolean changed = FALSE;
+	if (status != priv->mc_status) {
+		changed = TRUE;
+	}
+
+	priv->mc_status = status;
+
+	if (changed) {
+		g_signal_emit(G_OBJECT(userdata), STATUS_PROVIDER_SIGNAL_STATUS_CHANGED_ID, 0, mc_to_sp_map[priv->mc_status], TRUE);
+	}
+
+	return;
+}