Move the event manager to src/

svn path=/trunk/; revision=1253

1 files changed, 470 insertions, 0 deletions

diff --git a/src/empathy-event-manager.c b/src/empathy-event-manager.c
new file mode 100644
index 000000000..0404f5d70
--- /dev/null
+++ b/src/empathy-event-manager.c
@@ -0,0 +1,470 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/*
+ * Copyright (C) 2007-2008 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: Xavier Claessens <xclaesse@gmail.com>
+ */
+
+#include <config.h>
+
+#include <string.h>
+#include <glib/gi18n.h>
+
+#include <telepathy-glib/util.h>
+
+#include <libempathy/empathy-dispatcher.h>
+#include <libempathy/empathy-contact-manager.h>
+#include <libempathy/empathy-tp-chat.h>
+#include <libempathy/empathy-tp-group.h>
+#include <libempathy/empathy-utils.h>
+#include <libempathy-gtk/empathy-images.h>
+#include <libempathy-gtk/empathy-contact-dialogs.h>
+
+#include "empathy-event-manager.h"
+
+#define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
+#include <libempathy/empathy-debug.h>
+
+#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyEventManager)
+typedef struct {
+	EmpathyDispatcher     *dispatcher;
+	EmpathyContactManager *contact_manager;
+	GSList                *events;
+} EmpathyEventManagerPriv;
+
+typedef struct _EventPriv EventPriv;
+typedef void (*EventFunc) (EventPriv *event);
+
+struct _EventPriv {
+	EmpathyEvent         public;
+	TpChannel           *channel;
+	EmpathyEventManager *manager;
+	EventFunc            func;
+	gpointer             user_data;
+};
+
+enum {
+	EVENT_ADDED,
+	EVENT_REMOVED,
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL];
+
+G_DEFINE_TYPE (EmpathyEventManager, empathy_event_manager, G_TYPE_OBJECT);
+
+static void event_remove (EventPriv *event);
+
+static void
+event_free (EventPriv *event)
+{
+	g_free (event->public.icon_name);
+	g_free (event->public.message);
+
+	if (event->public.contact) {
+		g_object_unref (event->public.contact);
+	}
+
+	if (event->channel) {
+		g_signal_handlers_disconnect_by_func (event->channel,
+						      event_remove,
+						      event);
+		g_object_unref (event->channel);
+	}
+	g_slice_free (EventPriv, event);
+}
+
+static void
+event_remove (EventPriv *event)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
+
+	DEBUG ("Removing event %p", event);
+	priv->events = g_slist_remove (priv->events, event);
+	g_signal_emit (event->manager, signals[EVENT_REMOVED], 0, event);
+	event_free (event);
+}
+
+static void
+event_manager_add (EmpathyEventManager *manager,
+		   EmpathyContact      *contact,
+		   const gchar         *icon_name,
+		   const gchar         *message,
+		   TpChannel           *channel,
+		   EventFunc            func,
+		   gpointer             user_data)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (manager);
+	EventPriv               *event;
+
+	event = g_slice_new0 (EventPriv);
+	event->public.contact = contact ? g_object_ref (contact) : NULL;
+	event->public.icon_name = g_strdup (icon_name);
+	event->public.message = g_strdup (message);
+	event->manager = manager;
+	event->func = func;
+	event->user_data = user_data;
+
+	if (channel) {
+		event->channel = g_object_ref (channel);
+		g_signal_connect_swapped (channel, "invalidated",
+					  G_CALLBACK (event_remove),
+					  event);
+	}
+
+	DEBUG ("Adding event %p", event);
+	priv->events = g_slist_prepend (priv->events, event);
+	g_signal_emit (event->manager, signals[EVENT_ADDED], 0, event);
+}
+
+static void
+event_channel_process_func (EventPriv *event)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
+
+	/* This will emit "dispatch-channel" and the event will be removed
+	 * in the callback of that signal, no need to remove the event here. */	
+	empathy_dispatcher_channel_process (priv->dispatcher, event->channel);
+}
+
+static gboolean
+event_manager_chat_unref_idle (gpointer user_data)
+{
+	g_object_unref (user_data);
+	return FALSE;
+}
+
+static void
+event_manager_chat_message_received_cb (EmpathyTpChat       *tp_chat,
+					EmpathyMessage      *message,
+					EmpathyEventManager *manager)
+{
+	EmpathyContact  *sender;
+	gchar           *msg;
+	TpChannel       *channel;
+
+	g_idle_add (event_manager_chat_unref_idle, tp_chat);
+	g_signal_handlers_disconnect_by_func (tp_chat,
+					      event_manager_chat_message_received_cb,
+					      manager);
+
+	sender = empathy_message_get_sender (message);
+	msg = g_strdup_printf (_("New message from %s:\n%s"),
+			       empathy_contact_get_name (sender),
+			       empathy_message_get_body (message));
+
+	channel = empathy_tp_chat_get_channel (tp_chat);
+	event_manager_add (manager, sender, EMPATHY_IMAGE_NEW_MESSAGE, msg,
+			   channel, event_channel_process_func, NULL);
+
+	g_free (msg);
+}
+
+static void
+event_manager_filter_channel_cb (EmpathyDispatcher   *dispatcher,
+				 TpChannel           *channel,
+				 EmpathyEventManager *manager)
+{
+	gchar *channel_type;
+
+	g_object_get (channel, "channel-type", &channel_type, NULL);
+	if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)) {
+		EmpathyTpChat *tp_chat;
+
+		tp_chat = empathy_tp_chat_new (channel);
+		g_signal_connect (tp_chat, "message-received",
+				  G_CALLBACK (event_manager_chat_message_received_cb),
+				  manager);
+	}
+	else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA)) {
+		EmpathyTpGroup *tp_group;
+		EmpathyContact *contact;
+		gchar          *msg;
+
+		tp_group = empathy_tp_group_new (channel);
+		empathy_run_until_ready (tp_group);
+		empathy_tp_group_get_invitation (tp_group, &contact);
+		empathy_contact_run_until_ready (contact,
+						 EMPATHY_CONTACT_READY_NAME,
+						 NULL);
+
+		msg = g_strdup_printf (_("Incoming call from %s"),
+				       empathy_contact_get_name (contact));
+
+		event_manager_add (manager, contact, EMPATHY_IMAGE_VOIP, msg,
+				   channel, event_channel_process_func, NULL);
+
+		g_free (msg);
+		g_object_unref (contact);
+		g_object_unref (tp_group);
+	}
+
+	g_free (channel_type);
+}
+
+static void
+event_manager_dispatch_channel_cb (EmpathyDispatcher   *dispatcher,
+				   TpChannel           *channel,
+				   EmpathyEventManager *manager)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (manager);
+	GSList                  *l;
+
+	for (l = priv->events; l; l = l->next) {
+		EventPriv *event = l->data;
+
+		if (event->channel &&
+		    empathy_proxy_equal (channel, event->channel)) {
+			event_remove (event);
+			break;
+		}
+	}
+}
+
+static void
+event_tube_process_func (EventPriv *event)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (event->manager);
+	EmpathyDispatcherTube   *tube = (EmpathyDispatcherTube*) event->user_data;
+
+	if (tube->activatable) {
+		empathy_dispatcher_tube_process (priv->dispatcher, tube);
+	} else {
+		GtkWidget *dialog;
+		gchar     *str;
+
+		/* Tell the user that the tube can't be handled */
+		str = g_strdup_printf (_("%s offered you an invitation, but "
+					 "you don't have the needed external "
+					 "application to handle it."),
+				       empathy_contact_get_name (tube->initiator));
+
+		dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
+						 GTK_MESSAGE_ERROR,
+						 GTK_BUTTONS_OK,
+						 "%s", str);
+		gtk_window_set_title (GTK_WINDOW (dialog),
+				      _("Invitation Error"));
+		g_free (str);
+
+		gtk_widget_show (dialog);
+		g_signal_connect (dialog, "response",
+				  G_CALLBACK (gtk_widget_destroy),
+				  NULL);
+	}
+
+	empathy_dispatcher_tube_unref (tube);
+	event_remove (event);
+}
+
+static void
+event_manager_filter_tube_cb (EmpathyDispatcher     *dispatcher,
+			      EmpathyDispatcherTube *tube,
+			      EmpathyEventManager   *manager)
+{
+	const gchar *icon_name;
+	gchar       *msg;
+
+	empathy_contact_run_until_ready (tube->initiator,
+					 EMPATHY_CONTACT_READY_NAME, NULL);
+
+	if (tube->activatable) {
+		icon_name = GTK_STOCK_EXECUTE;
+		msg = g_strdup_printf (_("%s is offering you an invitation. An external "
+					 "application will be started to handle it."),
+				       empathy_contact_get_name (tube->initiator));
+	} else {
+		icon_name = GTK_STOCK_DIALOG_ERROR;
+		msg = g_strdup_printf (_("%s is offering you an invitation, but "
+					 "you don't have the needed external "
+					 "application to handle it."),
+				       empathy_contact_get_name (tube->initiator));
+	}
+
+	event_manager_add (manager, tube->initiator, icon_name, msg,
+			   tube->channel, event_tube_process_func,
+			   empathy_dispatcher_tube_ref (tube));
+
+	g_free (msg);
+}
+
+static void
+event_pending_subscribe_func (EventPriv *event)
+{
+	empathy_subscription_dialog_show (event->public.contact, NULL);
+	event_remove (event);
+}
+
+static void
+event_manager_pendings_changed_cb (EmpathyContactList  *list,
+				   EmpathyContact      *contact,
+				   EmpathyContact      *actor,
+				   guint                reason,
+				   gchar               *message,
+				   gboolean             is_pending,
+				   EmpathyEventManager *manager)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (manager);
+	GString                 *str;
+
+	if (!is_pending) {
+		GSList *l;
+
+		for (l = priv->events; l; l = l->next) {
+			EventPriv *event = l->data;
+
+			if (event->public.contact == contact &&
+			    event->func == event_pending_subscribe_func) {
+				event_remove (event);
+				break;
+			}
+		}
+
+		return;
+	}
+
+	empathy_contact_run_until_ready (contact,
+					 EMPATHY_CONTACT_READY_NAME,
+					 NULL);
+
+	str = g_string_new (NULL);
+	g_string_printf (str, _("Subscription requested by %s"),
+			 empathy_contact_get_name (contact));	
+	if (!G_STR_EMPTY (message)) {
+		g_string_append_printf (str, _("\nMessage: %s"), message);
+	}
+
+	event_manager_add (manager, contact, GTK_STOCK_DIALOG_QUESTION, str->str,
+			   NULL, event_pending_subscribe_func, NULL);
+
+	g_string_free (str, TRUE);
+}
+
+static void
+event_manager_finalize (GObject *object)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (object);
+
+	g_slist_foreach (priv->events, (GFunc) event_free, NULL);
+	g_slist_free (priv->events);
+	g_object_unref (priv->contact_manager);
+	g_object_unref (priv->dispatcher);
+}
+
+static void
+empathy_event_manager_class_init (EmpathyEventManagerClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->finalize = event_manager_finalize;
+
+	signals[EVENT_ADDED] =
+		g_signal_new ("event-added",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_LAST,
+			      0,
+			      NULL, NULL,
+			      g_cclosure_marshal_VOID__POINTER,
+			      G_TYPE_NONE,
+			      1, G_TYPE_POINTER);
+
+	signals[EVENT_REMOVED] =
+		g_signal_new ("event-removed",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_LAST,
+			      0,
+			      NULL, NULL,
+			      g_cclosure_marshal_VOID__POINTER,
+			      G_TYPE_NONE,
+			      1, G_TYPE_POINTER);
+
+	g_type_class_add_private (object_class, sizeof (EmpathyEventManagerPriv));
+}
+
+static void
+empathy_event_manager_init (EmpathyEventManager *manager)
+{
+	EmpathyEventManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
+		EMPATHY_TYPE_EVENT_MANAGER, EmpathyEventManagerPriv);
+
+	manager->priv = priv;
+
+	priv->dispatcher = empathy_dispatcher_new ();
+	priv->contact_manager = empathy_contact_manager_new ();
+	g_signal_connect (priv->dispatcher, "filter-channel",
+			  G_CALLBACK (event_manager_filter_channel_cb),
+			  manager);
+	g_signal_connect (priv->dispatcher, "dispatch-channel",
+			  G_CALLBACK (event_manager_dispatch_channel_cb),
+			  manager);
+	g_signal_connect (priv->dispatcher, "filter-tube",
+			  G_CALLBACK (event_manager_filter_tube_cb),
+			  manager);
+	g_signal_connect (priv->contact_manager, "pendings-changed",
+			  G_CALLBACK (event_manager_pendings_changed_cb),
+			  manager);
+}
+
+EmpathyEventManager *
+empathy_event_manager_new (void)
+{
+	static EmpathyEventManager *manager = NULL;
+
+	if (!manager) {
+		manager = g_object_new (EMPATHY_TYPE_EVENT_MANAGER, NULL);
+		g_object_add_weak_pointer (G_OBJECT (manager), (gpointer) &manager);
+	} else {
+		g_object_ref (manager);
+	}
+
+	return manager;
+}
+
+GSList *
+empathy_event_manager_get_events (EmpathyEventManager *manager)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (manager);
+
+	g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
+
+	return priv->events;
+}
+
+EmpathyEvent *
+empathy_event_manager_get_top_event (EmpathyEventManager *manager)
+{
+	EmpathyEventManagerPriv *priv = GET_PRIV (manager);
+
+	g_return_val_if_fail (EMPATHY_IS_EVENT_MANAGER (manager), NULL);
+
+	return priv->events ? priv->events->data : NULL;
+}
+
+void
+empathy_event_activate (EmpathyEvent *event_public)
+{
+	EventPriv *event = (EventPriv*) event_public;
+
+	g_return_if_fail (event_public != NULL);
+
+	if (event->func) {
+		event->func (event);
+	} else {
+		event_remove (event);
+	}
+}
+