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[empathy/gnome-2-34] Add an EmpathyCallFactory class

commit 43c0cd4fbc2e2c5cdbf838cbfcde2204149a85ef
Author: Emilio Pozuelo Monfort <emilio pozuelo collabora co uk>
Date:   Fri Feb 18 15:49:57 2011 +0000

    Add an EmpathyCallFactory class

 src/empathy-call-factory.c |  332 ++++++++++++++++++++++++++++++++++++++++++++
 src/empathy-call-factory.h |   82 +++++++++++
 2 files changed, 414 insertions(+), 0 deletions(-)
---
diff --git a/src/empathy-call-factory.c b/src/empathy-call-factory.c
new file mode 100644
index 0000000..1f5170e
--- /dev/null
+++ b/src/empathy-call-factory.c
@@ -0,0 +1,332 @@
+/*
+ * empathy-call-factory.c - Source for EmpathyCallFactory
+ * Copyright (C) 2008 Collabora Ltd.
+ * @author Sjoerd Simons <sjoerd simons collabora co uk>
+ *
+ * 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
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <telepathy-glib/account-channel-request.h>
+#include <telepathy-glib/simple-handler.h>
+#include <telepathy-glib/interfaces.h>
+#include <telepathy-glib/util.h>
+
+#include <telepathy-yell/telepathy-yell.h>
+
+#include <libempathy/empathy-dispatcher.h>
+#include <libempathy/empathy-channel-factory.h>
+#include <libempathy/empathy-utils.h>
+
+#include "empathy-call-factory.h"
+#include "empathy-call-handler.h"
+#include "src-marshal.h"
+
+#define DEBUG_FLAG EMPATHY_DEBUG_VOIP
+#include <libempathy/empathy-debug.h>
+
+G_DEFINE_TYPE(EmpathyCallFactory, empathy_call_factory, G_TYPE_OBJECT)
+
+static void handle_channels_cb (TpSimpleHandler *handler,
+    TpAccount *account,
+    TpConnection *connection,
+    GList *channels,
+    GList *requests_satisfied,
+    gint64 user_action_time,
+    TpHandleChannelsContext *context,
+    gpointer user_data);
+
+/* signal enum */
+enum
+{
+    NEW_CALL_HANDLER,
+    LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = {0};
+
+/* private structure */
+typedef struct {
+  TpBaseClient *handler;
+  gboolean dispose_has_run;
+} EmpathyCallFactoryPriv;
+
+#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyCallFactory)
+
+static GObject *call_factory = NULL;
+
+static void
+empathy_call_factory_init (EmpathyCallFactory *obj)
+{
+  EmpathyCallFactoryPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (obj,
+    EMPATHY_TYPE_CALL_FACTORY, EmpathyCallFactoryPriv);
+  TpDBusDaemon *dbus;
+  EmpathyChannelFactory *factory;
+  GError *error = NULL;
+
+  obj->priv = priv;
+
+  dbus = tp_dbus_daemon_dup (&error);
+  if (dbus == NULL)
+    {
+      g_warning ("Failed to get TpDBusDaemon: %s", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  priv->handler = tp_simple_handler_new (dbus, FALSE, FALSE,
+      "Empathy.Call", FALSE, handle_channels_cb, obj, NULL);
+
+  factory = empathy_channel_factory_new ();
+  tp_base_client_set_channel_factory (priv->handler,
+      TP_CLIENT_CHANNEL_FACTORY (factory));
+  g_object_unref (factory);
+
+  tp_base_client_take_handler_filter (priv->handler, 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));
+
+  tp_base_client_take_handler_filter (priv->handler, 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,
+        TPY_PROP_CHANNEL_TYPE_CALL_INITIAL_AUDIO, G_TYPE_BOOLEAN, TRUE,
+        NULL));
+
+  tp_base_client_take_handler_filter (priv->handler, 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,
+        TPY_PROP_CHANNEL_TYPE_CALL_INITIAL_VIDEO, G_TYPE_BOOLEAN, TRUE,
+        NULL));
+
+  tp_base_client_add_handler_capabilities_varargs (priv->handler,
+    "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/ice-udp",
+    "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/gtalk-p2p",
+    "org.freedesktop.Telepathy.Channel.Interface.MediaSignalling/video/h264",
+    NULL);
+
+  g_object_unref (dbus);
+}
+
+static GObject *
+empathy_call_factory_constructor (GType type, guint n_construct_params,
+  GObjectConstructParam *construct_params)
+{
+  g_return_val_if_fail (call_factory == NULL, NULL);
+
+  call_factory = G_OBJECT_CLASS (empathy_call_factory_parent_class)->constructor
+          (type, n_construct_params, construct_params);
+  g_object_add_weak_pointer (call_factory, (gpointer)&call_factory);
+
+  return call_factory;
+}
+
+static void
+empathy_call_factory_finalize (GObject *object)
+{
+  /* free any data held directly by the object here */
+
+  if (G_OBJECT_CLASS (empathy_call_factory_parent_class)->finalize)
+    G_OBJECT_CLASS (empathy_call_factory_parent_class)->finalize (object);
+}
+
+static void
+empathy_call_factory_dispose (GObject *object)
+{
+  EmpathyCallFactoryPriv *priv = GET_PRIV (object);
+
+  if (priv->dispose_has_run)
+    return;
+
+  priv->dispose_has_run = TRUE;
+
+  tp_clear_object (&priv->handler);
+
+  if (G_OBJECT_CLASS (empathy_call_factory_parent_class)->dispose)
+    G_OBJECT_CLASS (empathy_call_factory_parent_class)->dispose (object);
+}
+
+static void
+empathy_call_factory_class_init (
+  EmpathyCallFactoryClass *empathy_call_factory_class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (empathy_call_factory_class);
+
+  g_type_class_add_private (empathy_call_factory_class,
+    sizeof (EmpathyCallFactoryPriv));
+
+  object_class->constructor = empathy_call_factory_constructor;
+  object_class->dispose = empathy_call_factory_dispose;
+  object_class->finalize = empathy_call_factory_finalize;
+
+  signals[NEW_CALL_HANDLER] =
+    g_signal_new ("new-call-handler",
+      G_TYPE_FROM_CLASS (empathy_call_factory_class),
+      G_SIGNAL_RUN_LAST, 0,
+      NULL, NULL,
+      _src_marshal_VOID__OBJECT_BOOLEAN,
+      G_TYPE_NONE,
+      2, EMPATHY_TYPE_CALL_HANDLER, G_TYPE_BOOLEAN);
+}
+
+EmpathyCallFactory *
+empathy_call_factory_initialise (void)
+{
+  g_return_val_if_fail (call_factory == NULL, NULL);
+
+  return EMPATHY_CALL_FACTORY (g_object_new (EMPATHY_TYPE_CALL_FACTORY, NULL));
+}
+
+EmpathyCallFactory *
+empathy_call_factory_get (void)
+{
+  g_return_val_if_fail (call_factory != NULL, NULL);
+
+  return EMPATHY_CALL_FACTORY (call_factory);
+}
+
+GHashTable *
+empathy_call_factory_create_call_request (EmpathyContact *contact,
+    gboolean initial_audio,
+    gboolean initial_video)
+{
+  return 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,
+      TP_PROP_CHANNEL_TARGET_HANDLE, G_TYPE_UINT,
+        empathy_contact_get_handle (contact),
+      TPY_PROP_CHANNEL_TYPE_CALL_INITIAL_AUDIO, G_TYPE_BOOLEAN,
+        initial_audio,
+      TPY_PROP_CHANNEL_TYPE_CALL_INITIAL_VIDEO, G_TYPE_BOOLEAN,
+        initial_video,
+      NULL);
+}
+
+static void
+create_call_channel_cb (GObject *source,
+    GAsyncResult *result,
+    gpointer user_data)
+{
+  GError *error = NULL;
+
+  if (!tp_account_channel_request_create_channel_finish (
+        TP_ACCOUNT_CHANNEL_REQUEST (source), result, &error))
+    {
+      DEBUG ("Failed to create call channel: %s", error->message);
+      g_error_free (error);
+    }
+}
+
+/**
+ * empathy_call_factory_new_call_with_streams:
+ * @factory: an #EmpathyCallFactory
+ * @contact: an #EmpathyContact
+ * @initial_audio: if %TRUE the call will be started with audio
+ * @initial_video: if %TRUE the call will be started with video
+ *
+ * Initiate a new Call with @contact.
+ */
+void
+empathy_call_factory_new_call_with_streams (EmpathyContact *contact,
+    gboolean initial_audio,
+    gboolean initial_video,
+    gint64 timestamp,
+    gpointer user_data)
+{
+  GHashTable *call_request;
+  TpAccount *account;
+  TpAccountChannelRequest *call_req;
+
+  call_request = empathy_call_factory_create_call_request (contact,
+      initial_audio, initial_video);
+
+  account = empathy_contact_get_account (contact);
+
+  call_req = tp_account_channel_request_new (account, call_request, timestamp);
+
+  tp_account_channel_request_create_channel_async (call_req, NULL, NULL,
+      create_call_channel_cb, NULL);
+
+  g_hash_table_unref (call_request);
+  g_object_unref (call_req);
+}
+
+static void
+create_call_handler (EmpathyCallFactory *factory,
+  TpyCallChannel *call)
+{
+  EmpathyCallHandler *handler;
+
+  g_return_if_fail (factory != NULL);
+
+  handler = empathy_call_handler_new_for_channel (call);
+
+  g_signal_emit (factory, signals[NEW_CALL_HANDLER], 0,
+    handler, FALSE);
+
+  g_object_unref (handler);
+}
+
+static void
+handle_channels_cb (TpSimpleHandler *handler,
+    TpAccount *account,
+    TpConnection *connection,
+    GList *channels,
+    GList *requests_satisfied,
+    gint64 user_action_time,
+    TpHandleChannelsContext *context,
+    gpointer user_data)
+{
+  EmpathyCallFactory *self = user_data;
+  GList *l;
+
+  for (l = channels; l != NULL; l = g_list_next (l))
+    {
+      TpChannel *channel = l->data;
+      TpyCallChannel *call;
+
+      if (tp_proxy_get_invalidated (channel) != NULL)
+        continue;
+
+      if (tp_channel_get_channel_type_id (channel) !=
+          TPY_IFACE_QUARK_CHANNEL_TYPE_CALL)
+        continue;
+
+      if (!TPY_IS_CALL_CHANNEL (channel))
+        continue;
+
+      call = TPY_CALL_CHANNEL (channel);
+      create_call_handler (self, call);
+      g_object_unref (call);
+    }
+
+  tp_handle_channels_context_accept (context);
+}
+
+gboolean
+empathy_call_factory_register (EmpathyCallFactory *self,
+    GError **error)
+{
+  EmpathyCallFactoryPriv *priv = GET_PRIV (self);
+
+  return tp_base_client_register (priv->handler, error);
+}
diff --git a/src/empathy-call-factory.h b/src/empathy-call-factory.h
new file mode 100644
index 0000000..d4cb04e
--- /dev/null
+++ b/src/empathy-call-factory.h
@@ -0,0 +1,82 @@
+/*
+ * empathy-call-factory.h - Header for EmpathyCallFactory
+ * Copyright (C) 2008 Collabora Ltd.
+ * @author Sjoerd Simons <sjoerd simons collabora co uk>
+ *
+ * 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
+ */
+
+#ifndef __EMPATHY_CALL_FACTORY_H__
+#define __EMPATHY_CALL_FACTORY_H__
+
+#include <glib-object.h>
+
+#include <libempathy/empathy-dispatcher.h>
+
+G_BEGIN_DECLS
+
+typedef struct _EmpathyCallFactory EmpathyCallFactory;
+typedef struct _EmpathyCallFactoryClass EmpathyCallFactoryClass;
+
+struct _EmpathyCallFactoryClass {
+    GObjectClass parent_class;
+};
+
+struct _EmpathyCallFactory {
+    GObject parent;
+    gpointer priv;
+};
+
+GType empathy_call_factory_get_type (void);
+
+/* TYPE MACROS */
+#define EMPATHY_TYPE_CALL_FACTORY \
+  (empathy_call_factory_get_type ())
+#define EMPATHY_CALL_FACTORY(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj), EMPATHY_TYPE_CALL_FACTORY, \
+    EmpathyCallFactory))
+#define EMPATHY_CALL_FACTORY_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass), EMPATHY_TYPE_CALL_FACTORY, \
+    EmpathyCallFactoryClass))
+#define EMPATHY_IS_CALL_FACTORY(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj), EMPATHY_TYPE_CALL_FACTORY))
+#define EMPATHY_IS_CALL_FACTORY_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass), EMPATHY_TYPE_CALL_FACTORY))
+#define EMPATHY_CALL_FACTORY_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), EMPATHY_TYPE_CALL_FACTORY, \
+    EmpathyCallFactoryClass))
+
+
+EmpathyCallFactory *empathy_call_factory_initialise (void);
+
+EmpathyCallFactory *empathy_call_factory_get (void);
+
+void empathy_call_factory_new_call_with_streams (EmpathyContact *contact,
+  gboolean initial_audio,
+  gboolean initial_video,
+  gint64 timestamp,
+  gpointer user_data);
+
+gboolean empathy_call_factory_register (EmpathyCallFactory *self,
+    GError **error);
+
+GHashTable * empathy_call_factory_create_call_request (
+    EmpathyContact *contact,
+    gboolean initial_audio,
+    gboolean initial_video);
+
+G_END_DECLS
+
+#endif /* #ifndef __EMPATHY_CALL_FACTORY_H__*/
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