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/* vi: set et sw=4 ts=4 cino=t0,(0: */
/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */
/*
* This file is part of mission-control
*
* Copyright © 2008-2009 Nokia Corporation.
* Copyright © 2009-2010 Collabora Ltd.
*
* Contact: Alberto Mardegan <alberto.mardegan@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* 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 <string.h>
#include <glib/gstdio.h>
#include <glib/gi18n.h>
#include <config.h>
#include <dbus/dbus-glib-lowlevel.h>
#include <telepathy-glib/gtypes.h>
#include <telepathy-glib/svc-channel-request.h>
#include <telepathy-glib/svc-generic.h>
#include <telepathy-glib/util.h>
#include "mcd-account.h"
#include "mcd-account-priv.h"
#include "mcd-account-manager.h"
#include "mcd-dispatcher-priv.h"
#include "mcd-channel-priv.h"
#include "mcd-misc.h"
#include "request.h"
static void
online_request_cb (McdAccount *account, gpointer userdata, const GError *error)
{
McdChannel *channel = MCD_CHANNEL (userdata);
McdConnection *connection;
if (error)
{
g_warning ("got error: %s", error->message);
mcd_channel_take_error (channel, g_error_copy (error));
g_object_unref (channel);
return;
}
DEBUG ("called");
connection = mcd_account_get_connection (account);
g_return_if_fail (connection != NULL);
g_return_if_fail (mcd_account_get_connection_status (account)
== TP_CONNECTION_STATUS_CONNECTED);
if (mcd_channel_get_status (channel) == MCD_CHANNEL_STATUS_FAILED)
{
DEBUG ("channel %p is failed", channel);
g_object_unref (channel);
return;
}
/* the connection will take ownership of the channel if and only if it
* has no parent; we expect it to have no parent, and the connection will
* become its parent */
g_assert (mcd_mission_get_parent ((McdMission *) channel) == NULL);
mcd_connection_request_channel (connection, channel);
}
static void mcd_account_channel_request_disconnect (McdRequest *request);
static void
on_request_succeeded_with_channel (McdRequest *request,
const gchar *conn_path,
GHashTable *conn_props,
const gchar *chan_path,
GHashTable *chan_props,
McdChannel *channel)
{
mcd_account_channel_request_disconnect (request);
}
static void
on_request_failed (McdRequest *request,
const gchar *err_string,
const gchar *message,
McdChannel *channel)
{
g_warning ("Channel request %s failed, error: %s",
_mcd_request_get_object_path (request), message);
mcd_account_channel_request_disconnect (request);
}
static void ready_to_request_cb (McdRequest *request, McdChannel *channel);
static void
mcd_account_channel_request_disconnect (McdRequest *request)
{
g_signal_handlers_disconnect_matched (request, G_SIGNAL_MATCH_FUNC,
0, /* signal_id ignored */
0, /* detail ignored */
NULL, /* closure ignored */
on_request_failed,
NULL /* user data ignored */);
g_signal_handlers_disconnect_matched (request, G_SIGNAL_MATCH_FUNC,
0, /* signal_id ignored */
0, /* detail ignored */
NULL, /* closure ignored */
on_request_succeeded_with_channel,
NULL /* user data ignored */);
g_signal_handlers_disconnect_matched (request, G_SIGNAL_MATCH_FUNC,
0, /* signal_id ignored */
0, /* detail ignored */
NULL, /* closure ignored */
ready_to_request_cb,
NULL /* user data ignored */);
}
McdChannel *
_mcd_account_create_request (McdClientRegistry *clients,
McdAccount *account, GHashTable *properties,
gint64 user_time, const gchar *preferred_handler,
GHashTable *hints, gboolean use_existing,
McdRequest **request_out, GError **error)
{
McdChannel *channel;
GHashTable *props;
McdRequest *request;
if (!mcd_account_check_request (account, properties, error))
{
return NULL;
}
/* We MUST deep-copy the hash-table, as we don't know how dbus-glib will
* free it */
props = _mcd_deepcopy_asv (properties);
request = _mcd_request_new (clients, use_existing, account, props,
user_time, preferred_handler, hints);
g_assert (request != NULL);
g_hash_table_unref (props);
channel = _mcd_channel_new_request (request);
/* FIXME: this isn't ideal - if the account is deleted, Proceed will fail,
* whereas what we want to happen is that Proceed will succeed but
* immediately cause a failure to be signalled. It'll do for now though. */
/* This can't actually be emitted until Proceed() is called; it'll always
* come before succeeded-with-channel or failed */
g_signal_connect_data (request,
"ready-to-request",
G_CALLBACK (ready_to_request_cb),
g_object_ref (channel),
(GClosureNotify) g_object_unref,
0);
/* we use connect_after, to make sure that other signals (such as
* RemoveRequest) are emitted before the Failed signal */
g_signal_connect_data (request,
"succeeded-with-channel",
G_CALLBACK (on_request_succeeded_with_channel),
g_object_ref (channel),
(GClosureNotify) g_object_unref,
G_CONNECT_AFTER);
g_signal_connect_data (request,
"failed",
G_CALLBACK (on_request_failed),
g_object_ref (channel),
(GClosureNotify) g_object_unref,
G_CONNECT_AFTER);
if (request_out != NULL)
{
*request_out = g_object_ref (request);
}
return channel;
}
static void
ready_to_request_cb (McdRequest *request,
McdChannel *channel)
{
GError *error = _mcd_request_dup_failure (request);
/* if we didn't ref the channel, disconnecting the signal could
* destroy it */
g_object_ref (channel);
g_signal_handlers_disconnect_by_func (request, ready_to_request_cb,
channel);
if (error != NULL)
{
g_message ("request denied by plugin: %s", error->message);
mcd_channel_take_error (channel, error);
}
else
{
DEBUG ("Starting online request");
/* Put the account online if necessary, and when that's finished,
* make the actual request. (The callback releases this reference.) */
_mcd_account_online_request (_mcd_request_get_account (request),
online_request_cb,
g_object_ref (channel));
}
g_object_unref (channel);
}
gboolean
mcd_account_check_request (McdAccount *account, GHashTable *request,
GError **error)
{
gboolean (*impl) (McdAccount *account, GHashTable *request,
GError **error);
g_return_val_if_fail (MCD_IS_ACCOUNT (account), FALSE);
g_return_val_if_fail (request != NULL, FALSE);
impl = MCD_ACCOUNT_GET_CLASS (account)->check_request;
if (impl == NULL)
return TRUE;
return impl (account, request, error);
}
/* Default implementation of check_request */
gboolean
_mcd_account_check_request_real (McdAccount *account, GHashTable *request,
GError **error)
{
return TRUE;
}
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