path: root/calendar/gui/calendar-offline-handler.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* calendar-offline-handler.c
 *
 * Copyright (C) 2001  Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License 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 warranty of
 * MERCHANTABILITY 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, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Authors:
 *   Ettore Perazzoli <ettore@ximian.com>
 *   Dan Winship <danw@ximian.com>
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <bonobo/bonobo-exception.h>
#include <bonobo/bonobo-i18n.h>
#include <gal/util/e-util.h>
#include "e-util/e-url.h"
#include <libecal/e-cal.h>
#include "calendar-offline-handler.h"
#include "common/authentication.h"

#define PARENT_TYPE bonobo_object_get_type ()
static BonoboObjectClass *parent_class = NULL;

struct _CalendarOfflineHandlerPrivate {
    ECal *client;

    GNOME_Evolution_OfflineProgressListener listener_interface;

    gboolean is_offline;    
};

static void
add_connection (gpointer data, gpointer user_data)
{
    EUri *uri = e_uri_new (data);   
    GNOME_Evolution_ConnectionList *list = user_data;

    g_return_if_fail (uri != NULL);
    
    if (uri->host != NULL)
        list->_buffer[list->_length].hostName = CORBA_string_dup (uri->host);
    else
        list->_buffer[list->_length].hostName = CORBA_string_dup ("Unknown");
    if (uri->protocol != NULL)
        list->_buffer[list->_length].type = CORBA_string_dup (uri->protocol);
    else
        list->_buffer[list->_length].type = CORBA_string_dup ("Unknown");
    list->_length++;

    e_uri_free (uri);
}

static GNOME_Evolution_ConnectionList *
create_connection_list (CalendarOfflineHandler *offline_handler)
{
    CalendarOfflineHandlerPrivate *priv;
    GNOME_Evolution_ConnectionList *list;
    GList *uris;

    priv = offline_handler->priv;

    uris = e_cal_uri_list (priv->client, CAL_MODE_REMOTE);  

    list = GNOME_Evolution_ConnectionList__alloc ();
    list->_length = 0;
    list->_maximum = g_list_length (uris);
    list->_buffer = CORBA_sequence_GNOME_Evolution_Connection_allocbuf (list->_maximum);

    g_list_foreach (uris, add_connection, list);

    return list;
}

/* GNOME::Evolution::Offline methods.  */
static CORBA_boolean
impl__get_isOffline (PortableServer_Servant servant,
             CORBA_Environment *ev)
{
    CalendarOfflineHandler *offline_handler;
    CalendarOfflineHandlerPrivate *priv;
    
    offline_handler = CALENDAR_OFFLINE_HANDLER (bonobo_object_from_servant (servant));
    priv = offline_handler->priv;

    return priv->is_offline;
}

static void
impl_prepareForOffline (PortableServer_Servant servant,
            GNOME_Evolution_ConnectionList **active_connection_list,
            CORBA_Environment *ev)
{
    CalendarOfflineHandler *offline_handler;
    CalendarOfflineHandlerPrivate *priv;
    
    offline_handler = CALENDAR_OFFLINE_HANDLER (bonobo_object_from_servant (servant));
    priv = offline_handler->priv;

    *active_connection_list = create_connection_list (offline_handler);
}

static void
update_offline (CalendarOfflineHandler *offline_handler)
{
    CalendarOfflineHandlerPrivate *priv;
    GNOME_Evolution_ConnectionList *connection_list;
    CORBA_Environment ev;

    priv = offline_handler->priv;

    connection_list = create_connection_list (offline_handler);

    CORBA_exception_init (&ev);

    GNOME_Evolution_OfflineProgressListener_updateProgress (priv->listener_interface, 
                                connection_list, &ev);

    if (BONOBO_EX (&ev))
        g_warning ("Error updating offline progress");

    CORBA_exception_free (&ev);
}

static void
backend_cal_set_mode (ECal *client, ECalSetModeStatus status, CalMode mode, gpointer data)
{
    CalendarOfflineHandler *offline_handler = data;

    update_offline (offline_handler);
    g_object_unref (client);
}

static void
backend_cal_opened_offline (ECal *client, ECalendarStatus status, gpointer data)
{
    CalendarOfflineHandler *offline_handler = data;

    if (status != E_CALENDAR_STATUS_OK) {
        update_offline (offline_handler);
        g_object_unref (client);
        return;
    }

    g_signal_connect (client, "cal_set_mode", G_CALLBACK (backend_cal_set_mode), offline_handler);
    e_cal_set_mode (client, CAL_MODE_LOCAL);
}

static void
backend_cal_opened_online (ECal *client, ECalendarStatus status, gpointer data)
{
    if (status != E_CALENDAR_STATUS_OK) {
        g_object_unref (client);
        return;
    }

    e_cal_set_mode (client, CAL_MODE_REMOTE);
    g_object_unref (client);
}

static void
backend_go_offline (gpointer data, gpointer user_data)
{
    CalendarOfflineHandler *offline_handler = user_data;
    char *uri = data;
    ECal *client;
    gboolean success;
    GError *error = NULL;

    /* FIXME This should not use LAST */
    client = auth_new_cal_from_uri (uri, E_CAL_SOURCE_TYPE_LAST);
    g_signal_connect (client, "cal_opened", G_CALLBACK (backend_cal_opened_offline), offline_handler);
    success = e_cal_open (client, TRUE, &error);
    if (!success) {
        g_warning (_("backend_go_offline(): %s"), error->message);
        update_offline (offline_handler);
        g_object_unref (client);
        g_error_free (error);
        return;     
    }
}

static void
backend_go_online (gpointer data, gpointer user_data)
{
    CalendarOfflineHandler *offline_handler = user_data;
    char *uri = data;
    ECal *client;
    gboolean success;
    GError *error = NULL;

    /* FIXME This should not use LAST */    
    client = auth_new_cal_from_uri (uri, E_CAL_SOURCE_TYPE_LAST);
    g_signal_connect (G_OBJECT (client), "cal_opened", 
              G_CALLBACK (backend_cal_opened_online), offline_handler);
    success = e_cal_open (client, TRUE, &error);
    if (!success) {
        g_warning (_("backend_go_online(): %s"), error->message);
        g_object_unref (client);
        g_error_free (error);
        return;     
    }   
}

static void
impl_goOffline (PortableServer_Servant servant,
        const GNOME_Evolution_OfflineProgressListener progress_listener,
        CORBA_Environment *ev)
{
    CalendarOfflineHandler *offline_handler;
    CalendarOfflineHandlerPrivate *priv;
    GList *uris;
    
    offline_handler = CALENDAR_OFFLINE_HANDLER (bonobo_object_from_servant (servant));
    priv = offline_handler->priv;

    /* To update the status */
    priv->listener_interface = CORBA_Object_duplicate (progress_listener, ev);

    uris = e_cal_uri_list (priv->client, CAL_MODE_REMOTE);

    g_list_foreach (uris, backend_go_offline, offline_handler); 
}

static void
impl_goOnline (PortableServer_Servant servant,
           CORBA_Environment *ev)
{
    CalendarOfflineHandler *offline_handler;
    CalendarOfflineHandlerPrivate *priv;
    GList *uris;

    offline_handler = CALENDAR_OFFLINE_HANDLER (bonobo_object_from_servant (servant));
    priv = offline_handler->priv;

    uris = e_cal_uri_list (priv->client, CAL_MODE_LOCAL);

    g_list_foreach (uris, backend_go_online, offline_handler);
}

/* GObject methods.  */

static void
impl_dispose (GObject *object)
{
    CalendarOfflineHandler *offline_handler;
    CalendarOfflineHandlerPrivate *priv;

    offline_handler = CALENDAR_OFFLINE_HANDLER (object);
    priv = offline_handler->priv;

    if (priv->client) {
        g_object_unref (priv->client);
        priv->client = NULL;
    }
    
    if (priv->listener_interface != CORBA_OBJECT_NIL) {
        CORBA_Environment ev;

        CORBA_exception_init (&ev);
        CORBA_Object_release (priv->listener_interface, &ev);
        CORBA_exception_free (&ev);

        priv->listener_interface = CORBA_OBJECT_NIL;
    }

    if (G_OBJECT_CLASS (parent_class)->dispose)
        (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

static void
impl_finalize (GObject *object)
{
    CalendarOfflineHandler *offline_handler;
    CalendarOfflineHandlerPrivate *priv;

    offline_handler = CALENDAR_OFFLINE_HANDLER (object);
    priv = offline_handler->priv;

    g_free (priv);

    if (G_OBJECT_CLASS (parent_class)->finalize)
        (* G_OBJECT_CLASS (parent_class)->finalize) (object);
}

/* GTK+ type initialization.  */

static void
calendar_offline_handler_class_init (CalendarOfflineHandlerClass *klass)
{
    GObjectClass *object_class;
    POA_GNOME_Evolution_Offline__epv *epv;

    object_class = G_OBJECT_CLASS (klass);
    object_class->dispose = impl_dispose;
    object_class->finalize = impl_finalize;

    epv = & klass->epv;
    epv->_get_isOffline    = impl__get_isOffline;
    epv->prepareForOffline = impl_prepareForOffline;
    epv->goOffline         = impl_goOffline;
    epv->goOnline          = impl_goOnline;

    parent_class = gtk_type_class (PARENT_TYPE);
}

static void
calendar_offline_handler_init (CalendarOfflineHandler *offline_handler)
{
    CalendarOfflineHandlerPrivate *priv;

    priv = g_new (CalendarOfflineHandlerPrivate, 1);
    offline_handler->priv = priv;

    /* FIXME This should not use LAST */
    /* FIXME: what URI to use? */
    priv->client = auth_new_cal_from_uri ("", E_CAL_SOURCE_TYPE_LAST);
    priv->listener_interface = CORBA_OBJECT_NIL;
    priv->is_offline = FALSE;
}

CalendarOfflineHandler *
calendar_offline_handler_new (void)
{
    CalendarOfflineHandler *new;

    new = g_object_new (calendar_offline_handler_get_type (), NULL);
    
    return new;
}

BONOBO_TYPE_FUNC_FULL (CalendarOfflineHandler, GNOME_Evolution_Offline, PARENT_TYPE, calendar_offline_handler);