--- /dev/null
+/*
+ * Copyright (C) 2011 Collabora Ltd.
+ *
+ * This library 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
+ */
+
+#include <config.h>
+
+#include <telepathy-glib/telepathy-glib.h>
+
+#include <telepathy-yell/telepathy-yell.h>
+
+#include <libempathy/empathy-channel-factory.h>
+#include <libempathy/empathy-utils.h>
+
+#include <extensions/extensions.h>
+
+#include "empathy-call-observer.h"
+
+#define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
+#include <libempathy/empathy-debug.h>
+
+struct _EmpathyCallObserverPriv {
+ TpBaseClient *observer;
+
+ /* Ongoing calls, as reffed TpChannels */
+ GList *channels;
+};
+
+/* The Call Observer looks at incoming and outgoing calls, and
+ * autorejects incoming ones if there are ongoing ones, since
+ * we don't cope with simultaneous calls quite well yet.
+ * At some point, we should ask the user if he wants to put the
+ * current call on hold and answer the incoming one instead,
+ * see https://bugzilla.gnome.org/show_bug.cgi?id=623348
+ */
+G_DEFINE_TYPE (EmpathyCallObserver, empathy_call_observer, G_TYPE_OBJECT);
+
+static EmpathyCallObserver * observer_singleton = NULL;
+
+static void
+on_channel_closed (TpProxy *proxy,
+ guint domain,
+ gint code,
+ gchar *message,
+ EmpathyCallObserver *self)
+{
+ self->priv->channels = g_list_remove (self->priv->channels, proxy);
+ g_object_unref (proxy);
+}
+
+static void
+on_cdo_claim_cb (GObject *source_object,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ TpChannelDispatchOperation *cdo;
+ TpChannel *channel = TP_CHANNEL (user_data);
+ GError *error = NULL;
+
+ cdo = TP_CHANNEL_DISPATCH_OPERATION (source_object);
+
+ tp_channel_dispatch_operation_claim_finish (cdo, result, &error);
+ if (error != NULL)
+ {
+ DEBUG ("Could not claim CDO: %s", error->message);
+ g_error_free (error);
+ return;
+ }
+
+ tp_channel_leave_async (channel,
+ TP_CHANNEL_GROUP_CHANGE_REASON_BUSY, "Already in a call",
+ NULL, NULL);
+}
+
+static TpChannel *
+find_main_channel (GList *channels)
+{
+ GList *l;
+
+ for (l = channels; l != NULL; l = g_list_next (l))
+ {
+ TpChannel *channel = l->data;
+ GQuark channel_type;
+
+ if (tp_proxy_get_invalidated (channel) != NULL)
+ continue;
+
+ channel_type = tp_channel_get_channel_type_id (channel);
+
+ if (channel_type == TP_IFACE_QUARK_CHANNEL_TYPE_STREAMED_MEDIA ||
+ channel_type == TPY_IFACE_QUARK_CHANNEL_TYPE_CALL)
+ return channel;
+ }
+
+ return NULL;
+}
+
+static gboolean
+has_ongoing_calls (EmpathyCallObserver *self)
+{
+ GList *l;
+
+ for (l = self->priv->channels; l != NULL; l = l->next)
+ {
+ TpChannel *channel = TP_CHANNEL (l->data);
+ GQuark type = tp_channel_get_channel_type_id (channel);
+
+ /* Check that Call channels are not ended */
+ if (type == TPY_IFACE_QUARK_CHANNEL_TYPE_CALL &&
+ tpy_call_channel_get_state (TPY_CALL_CHANNEL (channel), NULL, NULL)
+ == TPY_CALL_STATE_ENDED)
+ continue;
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+observe_channels (TpSimpleObserver *observer,
+ TpAccount *account,
+ TpConnection *connection,
+ GList *channels,
+ TpChannelDispatchOperation *dispatch_operation,
+ GList *requests,
+ TpObserveChannelsContext *context,
+ gpointer user_data)
+{
+ EmpathyCallObserver *self = EMPATHY_CALL_OBSERVER (user_data);
+ TpChannel *channel;
+ const GError *error;
+
+ channel = find_main_channel (channels);
+ if (channel == NULL)
+ {
+ GError err = { TP_ERRORS, TP_ERROR_INVALID_ARGUMENT,
+ "Unknown channel type" };
+
+ DEBUG ("Didn't find any Call or StreamedMedia channel; ignoring");
+
+ tp_observe_channels_context_fail (context, &err);
+ return;
+ }
+
+ /* Autoreject if there are other ongoing calls */
+ if (has_ongoing_calls (self))
+ {
+ DEBUG ("Autorejecting incoming call since there are others in "
+ "progress: %s", tp_proxy_get_object_path (channel));
+ tp_channel_dispatch_operation_claim_async (dispatch_operation,
+ on_cdo_claim_cb, g_object_ref (channel));
+ return;
+ }
+
+ if ((error = tp_proxy_get_invalidated (channel)) != NULL)
+ {
+ DEBUG ("The channel has already been invalidated: %s",
+ error->message);
+ return;
+ }
+
+ tp_g_signal_connect_object (channel, "invalidated",
+ G_CALLBACK (on_channel_closed), self, 0);
+ self->priv->channels = g_list_prepend (self->priv->channels,
+ g_object_ref (channel));
+
+ tp_observe_channels_context_accept (context);
+}
+
+static GObject *
+observer_constructor (GType type,
+ guint n_props,
+ GObjectConstructParam *props)
+{
+ GObject *retval;
+
+ if (observer_singleton)
+ {
+ retval = g_object_ref (observer_singleton);
+ }
+ else
+ {
+ retval = G_OBJECT_CLASS (empathy_call_observer_parent_class)->constructor
+ (type, n_props, props);
+
+ observer_singleton = EMPATHY_CALL_OBSERVER (retval);
+ g_object_add_weak_pointer (retval, (gpointer) &observer_singleton);
+ }
+
+ return retval;
+}
+
+static void
+observer_dispose (GObject *object)
+{
+ EmpathyCallObserver *self = EMPATHY_CALL_OBSERVER (object);
+
+ tp_clear_object (&self->priv->observer);
+ g_list_free_full (self->priv->channels, g_object_unref);
+ self->priv->channels = NULL;
+}
+
+static void
+empathy_call_observer_class_init (EmpathyCallObserverClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = observer_dispose;
+ object_class->constructor = observer_constructor;
+
+ g_type_class_add_private (object_class, sizeof (EmpathyCallObserverPriv));
+}
+
+static void
+empathy_call_observer_init (EmpathyCallObserver *self)
+{
+ EmpathyCallObserverPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+ EMPATHY_TYPE_CALL_OBSERVER, EmpathyCallObserverPriv);
+ TpDBusDaemon *dbus;
+ EmpathyChannelFactory *factory;
+ GError *error = NULL;
+
+ self->priv = priv;
+
+ dbus = tp_dbus_daemon_dup (&error);
+ if (dbus == NULL)
+ {
+ DEBUG ("Failed to get TpDBusDaemon: %s", error->message);
+ g_error_free (error);
+ return;
+ }
+
+ self->priv->observer = tp_simple_observer_new (dbus, FALSE,
+ "Empathy.CallObserver", FALSE,
+ observe_channels, self, NULL);
+
+ factory = empathy_channel_factory_dup ();
+ tp_base_client_set_channel_factory (self->priv->observer,
+ TP_CLIENT_CHANNEL_FACTORY (factory));
+ g_object_unref (factory);
+
+ /* Observe Call and StreamedMedia channels */
+ tp_base_client_take_observer_filter (self->priv->observer,
+ tp_asv_new (
+ TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
+ TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
+ TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT,
+ TP_HANDLE_TYPE_CONTACT,
+ NULL));
+ tp_base_client_take_observer_filter (self->priv->observer,
+ tp_asv_new (
+ TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING,
+ TPY_IFACE_CHANNEL_TYPE_CALL,
+ TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT,
+ TP_HANDLE_TYPE_CONTACT,
+ NULL));
+
+ if (!tp_base_client_register (self->priv->observer, &error))
+ {
+ DEBUG ("Failed to register observer: %s", error->message);
+ g_error_free (error);
+ }
+
+ g_object_unref (dbus);
+}
+
+EmpathyCallObserver *
+empathy_call_observer_dup_singleton (void)
+{
+ return g_object_new (EMPATHY_TYPE_CALL_OBSERVER, NULL);
+}
--- /dev/null
+/*
+ * Copyright (C) 2011 Collabora Ltd.
+ *
+ * This library 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 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
+ */
+
+#ifndef __EMPATHY_CALL_OBSERVER_H__
+#define __EMPATHY_CALL_OBSERVER_H__
+
+#include <glib.h>
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define EMPATHY_TYPE_CALL_OBSERVER (empathy_call_observer_get_type ())
+#define EMPATHY_CALL_OBSERVER(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), EMPATHY_TYPE_CALL_OBSERVER, EmpathyCallObserver))
+#define EMPATHY_CALL_OBSERVER_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), EMPATHY_TYPE_CALL_OBSERVER, EmpathyCallObserverClass))
+#define EMPATHY_IS_CALL_OBSERVER(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), EMPATHY_TYPE_CALL_OBSERVER))
+#define EMPATHY_IS_CALL_OBSERVER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), EMPATHY_TYPE_CALL_OBSERVER))
+#define EMPATHY_CALL_OBSERVER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), EMPATHY_TYPE_CALL_OBSERVER, EmpathyCallObserverClass))
+
+typedef struct _EmpathyCallObserver EmpathyCallObserver;
+typedef struct _EmpathyCallObserverPriv EmpathyCallObserverPriv;
+typedef struct _EmpathyCallObserverClass EmpathyCallObserverClass;
+
+struct _EmpathyCallObserver {
+ GObject parent;
+ EmpathyCallObserverPriv *priv;
+};
+
+struct _EmpathyCallObserverClass {
+ GObjectClass parent_class;
+};
+
+GType empathy_call_observer_get_type (void) G_GNUC_CONST;
+EmpathyCallObserver *empathy_call_observer_dup_singleton (void);
+
+G_END_DECLS
+
+#endif /* __EMPATHY_CALL_OBSERVER_H__ */
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