path: root/calendar/gui/e-meeting-model.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* itip-model.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.
 *
 * Author: JP Rosevear
 */

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

#include <glib.h>
#include <bonobo/bonobo-control.h>
#include <bonobo/bonobo-widget.h>
#include <bonobo/bonobo-exception.h>
#include <libgnome/gnome-i18n.h>
#include <libgnome/gnome-util.h>
#include <libgnomevfs/gnome-vfs.h>
#include <gal/e-table/e-table-without.h>
#include <gal/e-table/e-cell-text.h>
#include <gal/e-table/e-cell-popup.h>
#include <gal/e-table/e-cell-combo.h>
#include <ebook/e-book.h>
#include <ebook/e-card-types.h>
#include <ebook/e-card-cursor.h>
#include <ebook/e-card.h>
#include <ebook/e-card-simple.h>
#include <cal-util/cal-component.h>
#include <cal-util/cal-util.h>
#include <cal-util/timeutil.h>
#include "Evolution-Addressbook-SelectNames.h"
#include "calendar-config.h"
#include "itip-utils.h"
#include "e-meeting-utils.h"
#include "e-meeting-attendee.h"
#include "e-meeting-model.h"

#define SELECT_NAMES_OAFID "OAFIID:GNOME_Evolution_Addressbook_SelectNames"

struct _EMeetingModelPrivate 
{
    GPtrArray *attendees;
    GList *edit_rows;

    ETableWithout *without;
    GList *tables;
    
    CalClient *client;
    icaltimezone *zone;
    
    EBook *ebook;
    gboolean book_loaded;
    gboolean book_load_wait;

    GPtrArray *refresh_queue;
    GHashTable *refresh_data;
    gint refresh_idle_id;

    /* For invite others dialogs */
        GNOME_Evolution_Addressbook_SelectNames corba_select_names;
};

#define BUF_SIZE 1024

static char *sections[] = {N_("Chair Persons"), 
               N_("Required Participants"), 
               N_("Optional Participants"), 
               N_("Resources"),
               NULL};
static icalparameter_role roles[] = {ICAL_ROLE_CHAIR,
                     ICAL_ROLE_REQPARTICIPANT,
                     ICAL_ROLE_OPTPARTICIPANT,
                     ICAL_ROLE_NONPARTICIPANT,
                     ICAL_ROLE_NONE};

typedef struct _EMeetingModelQueueData EMeetingModelQueueData;
struct _EMeetingModelQueueData {
    EMeetingModel *im;
    EMeetingAttendee *ia;

    gboolean refreshing;
    
    EMeetingTime start;
    EMeetingTime end;

    char buffer[BUF_SIZE];
    GString *string;
    
    GPtrArray *call_backs;
    GPtrArray *data;
};


static void class_init  (EMeetingModelClass  *klass);
static void init    (EMeetingModel       *model);
static void finalize    (GObject *obj);

static void refresh_queue_add (EMeetingModel *im, int row,
                   EMeetingTime *start,
                   EMeetingTime *end,
                   EMeetingModelRefreshCallback call_back,
                   gpointer data);
static void refresh_queue_remove (EMeetingModel *im,
                  EMeetingAttendee *ia);
static gboolean refresh_busy_periods (gpointer data);

static void attendee_changed_cb (EMeetingAttendee *ia, gpointer data);
static void select_names_ok_cb (BonoboListener    *listener,
                const char        *event_name,
                const CORBA_any   *arg,
                CORBA_Environment *ev,
                gpointer           data);

static void table_destroy_state_cb (ETableScrolled *etable, gpointer data);
static void table_destroy_list_cb (ETableScrolled *etable, gpointer data);

static ETableModelClass *parent_class = NULL;

E_MAKE_TYPE (e_meeting_model, "EMeetingModel", EMeetingModel,
         class_init, init, E_TABLE_MODEL_TYPE);

static void
book_open_cb (EBook *book, EBookStatus status, gpointer data)
{
    EMeetingModel *im = E_MEETING_MODEL (data);
    EMeetingModelPrivate *priv;
    
    priv = im->priv;

    if (status == E_BOOK_STATUS_SUCCESS)
        priv->book_loaded = TRUE;
    else
        g_warning ("Book not loaded");
    
    if (priv->book_load_wait) {
        priv->book_load_wait = FALSE;
        gtk_main_quit ();
    }
}

static void
start_addressbook_server (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    gchar *uri, *path;

    priv = im->priv;
    
    priv->ebook = e_book_new ();

    path = g_concat_dir_and_file (g_get_home_dir (),
                      "evolution/local/Contacts/addressbook.db");
    uri = g_strdup_printf ("file://%s", path);
    g_free (path);

    e_book_load_uri (priv->ebook, uri, book_open_cb, im);

    g_free (uri);
}

static EMeetingAttendee *
find_match (EMeetingModel *im, const char *address, int *pos)
{
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;
    const gchar *ia_address;
    int i;
    
    priv = im->priv;
    
    if (address == NULL)
        return NULL;
    
    /* Make sure we can add the new delegatee person */
    for (i = 0; i < priv->attendees->len; i++) {
        ia = g_ptr_array_index (priv->attendees, i);

        ia_address = e_meeting_attendee_get_address (ia);
        if (ia_address != NULL && !g_strcasecmp (itip_strip_mailto (ia_address), itip_strip_mailto (address))) {
            if (pos != NULL)
                *pos = i;
            return ia;
        }
    }

    return NULL;
}

static icalparameter_cutype
text_to_type (const char *type)
{
    if (!g_strcasecmp (type, _("Individual")))
        return ICAL_CUTYPE_INDIVIDUAL;
    else if (!g_strcasecmp (type, _("Group")))
        return ICAL_CUTYPE_GROUP;
    else if (!g_strcasecmp (type, _("Resource")))
        return ICAL_CUTYPE_RESOURCE;
    else if (!g_strcasecmp (type, _("Room")))
        return ICAL_CUTYPE_ROOM;
    else
        return ICAL_CUTYPE_NONE;
}

static char *
type_to_text (icalparameter_cutype type)
{
    switch (type) {
    case ICAL_CUTYPE_INDIVIDUAL:
        return _("Individual");
    case ICAL_CUTYPE_GROUP:
        return _("Group");
    case ICAL_CUTYPE_RESOURCE:
        return _("Resource");
    case ICAL_CUTYPE_ROOM:
        return _("Room");
    default:
        return _("Unknown");
    }

    return NULL;

}

static icalparameter_role
text_to_role (const char *role)
{
    if (!g_strcasecmp (role, _("Chair")))
        return ICAL_ROLE_CHAIR;
    else if (!g_strcasecmp (role, _("Required Participant")))
        return ICAL_ROLE_REQPARTICIPANT;
    else if (!g_strcasecmp (role, _("Optional Participant")))
        return ICAL_ROLE_OPTPARTICIPANT;
    else if (!g_strcasecmp (role, _("Non-Participant")))
        return ICAL_ROLE_NONPARTICIPANT;
    else
        return ICAL_ROLE_NONE;
}

static char *
role_to_text (icalparameter_role role) 
{
    switch (role) {
    case ICAL_ROLE_CHAIR:
        return _("Chair");
    case ICAL_ROLE_REQPARTICIPANT:
        return _("Required Participant");
    case ICAL_ROLE_OPTPARTICIPANT:
        return _("Optional Participant");
    case ICAL_ROLE_NONPARTICIPANT:
        return _("Non-Participant");
    default:
        return _("Unknown");
    }

    return NULL;
}

static gboolean
text_to_boolean (const char *role)
{
    if (!g_strcasecmp (role, _("Yes")))
        return TRUE;
    else
        return FALSE;
}

static char *
boolean_to_text (gboolean b) 
{
    if (b)
        return _("Yes");
    else
        return _("No");
}

static icalparameter_partstat
text_to_partstat (const char *partstat)
{
    if (!g_strcasecmp (partstat, _("Needs Action")))
        return ICAL_PARTSTAT_NEEDSACTION;
    else if (!g_strcasecmp (partstat, _("Accepted")))
        return ICAL_PARTSTAT_ACCEPTED;
    else if (!g_strcasecmp (partstat, _("Declined")))
        return ICAL_PARTSTAT_DECLINED;
    else if (!g_strcasecmp (partstat, _("Tentative")))
        return ICAL_PARTSTAT_TENTATIVE;
    else if (!g_strcasecmp (partstat, _("Delegated")))
        return ICAL_PARTSTAT_DELEGATED;
    else if (!g_strcasecmp (partstat, _("Completed")))
        return ICAL_PARTSTAT_COMPLETED;
    else if (!g_strcasecmp (partstat, _("In Process")))
        return ICAL_PARTSTAT_INPROCESS;
    else
        return ICAL_PARTSTAT_NONE;
}

static char *
partstat_to_text (icalparameter_partstat partstat) 
{
    switch (partstat) {
    case ICAL_PARTSTAT_NEEDSACTION:
        return _("Needs Action");
    case ICAL_PARTSTAT_ACCEPTED:
        return _("Accepted");
    case ICAL_PARTSTAT_DECLINED:
        return _("Declined");
    case ICAL_PARTSTAT_TENTATIVE:
        return _("Tentative");
    case ICAL_PARTSTAT_DELEGATED:
        return _("Delegated");
    case ICAL_PARTSTAT_COMPLETED:
        return _("Completed");
    case ICAL_PARTSTAT_INPROCESS:
        return _("In Process");
    case ICAL_PARTSTAT_NONE:
    default:
        return _("Unknown");
    }

    return NULL;
}

static int
column_count (ETableModel *etm)
{
    return E_MEETING_MODEL_COLUMN_COUNT;
}

static int
row_count (ETableModel *etm)
{
    EMeetingModel *im;
    EMeetingModelPrivate *priv;

    im = E_MEETING_MODEL (etm); 
    priv = im->priv;

    return (priv->attendees->len);
}

static void
append_row (ETableModel *etm, ETableModel *source, int row)
{   
    EMeetingModel *im;
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;
    char *address;
    
    im = E_MEETING_MODEL (etm); 
    priv = im->priv;
    
    address = (char *) e_table_model_value_at (source, E_MEETING_MODEL_ADDRESS_COL, row);
    if (find_match (im, address, NULL) != NULL) {
        return;
    }
    
    ia = E_MEETING_ATTENDEE (e_meeting_attendee_new ());
    
    e_meeting_attendee_set_address (ia, g_strdup_printf ("MAILTO:%s", address));
    e_meeting_attendee_set_member (ia, g_strdup (e_table_model_value_at (source, E_MEETING_MODEL_MEMBER_COL, row)));
    e_meeting_attendee_set_cutype (ia, text_to_type (e_table_model_value_at (source, E_MEETING_MODEL_TYPE_COL, row)));
    e_meeting_attendee_set_role (ia, text_to_role (e_table_model_value_at (source, E_MEETING_MODEL_ROLE_COL, row)));
    e_meeting_attendee_set_rsvp (ia, text_to_boolean (e_table_model_value_at (source, E_MEETING_MODEL_RSVP_COL, row)));
    e_meeting_attendee_set_delto (ia, g_strdup (e_table_model_value_at (source, E_MEETING_MODEL_DELTO_COL, row)));
    e_meeting_attendee_set_delfrom (ia, g_strdup (e_table_model_value_at (source, E_MEETING_MODEL_DELFROM_COL, row)));
    e_meeting_attendee_set_status (ia, text_to_partstat (e_table_model_value_at (source, E_MEETING_MODEL_STATUS_COL, row)));
    e_meeting_attendee_set_cn (ia, g_strdup (e_table_model_value_at (source, E_MEETING_MODEL_CN_COL, row)));
    e_meeting_attendee_set_language (ia, g_strdup (e_table_model_value_at (source, E_MEETING_MODEL_LANGUAGE_COL, row)));

    e_meeting_model_add_attendee (E_MEETING_MODEL (etm), ia);
    g_object_unref (ia);
}

static void *
value_at (ETableModel *etm, int col, int row)
{
    EMeetingModel *im;
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;

    im = E_MEETING_MODEL (etm); 
    priv = im->priv;

    ia = g_ptr_array_index (priv->attendees, row);
    
    switch (col) {
    case E_MEETING_MODEL_ADDRESS_COL:
        return (void *)itip_strip_mailto (e_meeting_attendee_get_address (ia));
    case E_MEETING_MODEL_MEMBER_COL:
        return (void *)e_meeting_attendee_get_member (ia);
    case E_MEETING_MODEL_TYPE_COL:
        return type_to_text (e_meeting_attendee_get_cutype (ia));
    case E_MEETING_MODEL_ROLE_COL:
        return role_to_text (e_meeting_attendee_get_role (ia));
    case E_MEETING_MODEL_RSVP_COL:
        return boolean_to_text (e_meeting_attendee_get_rsvp (ia));
    case E_MEETING_MODEL_DELTO_COL:
        return (void *)itip_strip_mailto (e_meeting_attendee_get_delto (ia));
    case E_MEETING_MODEL_DELFROM_COL:
        return (void *)itip_strip_mailto (e_meeting_attendee_get_delfrom (ia));
    case E_MEETING_MODEL_STATUS_COL:
        return partstat_to_text (e_meeting_attendee_get_status (ia));
    case E_MEETING_MODEL_CN_COL:
        return (void *)e_meeting_attendee_get_cn (ia);
    case E_MEETING_MODEL_LANGUAGE_COL:
        return (void *)e_meeting_attendee_get_language (ia);
    }
    
    return NULL;
}

static void
set_value_at (ETableModel *etm, int col, int row, const void *val)
{
    EMeetingModel *im;
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;
    icalparameter_cutype type;
    
    im = E_MEETING_MODEL (etm); 
    priv = im->priv;

    ia = g_ptr_array_index (priv->attendees, row);

    e_table_model_pre_change (etm);
    
    switch (col) {
    case E_MEETING_MODEL_ADDRESS_COL:
        if (val != NULL && *((char *)val))
            e_meeting_attendee_set_address (ia, g_strdup_printf ("MAILTO:%s", (char *) val));
        break;
    case E_MEETING_MODEL_MEMBER_COL:
        e_meeting_attendee_set_member (ia, g_strdup (val));
        break;
    case E_MEETING_MODEL_TYPE_COL:
        type = text_to_type (val);
        e_meeting_attendee_set_cutype (ia, text_to_type (val));
        if (type == ICAL_CUTYPE_RESOURCE) {
            e_meeting_attendee_set_role (ia, ICAL_ROLE_NONPARTICIPANT);
            e_table_model_cell_changed (etm, E_MEETING_MODEL_ROLE_COL, row);
        }       
        break;
    case E_MEETING_MODEL_ROLE_COL:
        e_meeting_attendee_set_role (ia, text_to_role (val));
        break;
    case E_MEETING_MODEL_RSVP_COL:
        e_meeting_attendee_set_rsvp (ia, text_to_boolean (val));
        break;
    case E_MEETING_MODEL_DELTO_COL:
        e_meeting_attendee_set_delto (ia, g_strdup (val));
        break;
    case E_MEETING_MODEL_DELFROM_COL:
        e_meeting_attendee_set_delfrom (ia, g_strdup (val));
        break;
    case E_MEETING_MODEL_STATUS_COL:
        e_meeting_attendee_set_status (ia, text_to_partstat (val));
        break;
    case E_MEETING_MODEL_CN_COL:
        e_meeting_attendee_set_cn (ia, g_strdup (val));
        break;
    case E_MEETING_MODEL_LANGUAGE_COL:
        e_meeting_attendee_set_language (ia, g_strdup (val));
        break;
    }

    e_table_model_cell_changed (etm, col, row);
}

static gboolean
is_cell_editable (ETableModel *etm, int col, int row)
{
    EMeetingModel *im;
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;
    EMeetingAttendeeEditLevel level;
    
    im = E_MEETING_MODEL (etm); 
    priv = im->priv;
    
    if (col == E_MEETING_MODEL_DELTO_COL
        || col == E_MEETING_MODEL_DELFROM_COL)
        return FALSE;
    
    if (row == -1)
        return TRUE;
    if (row >= priv->attendees->len)
        return TRUE;
    
    ia = g_ptr_array_index (priv->attendees, row);
    level = e_meeting_attendee_get_edit_level (ia);

    switch (level) {
    case E_MEETING_ATTENDEE_EDIT_FULL:
        return TRUE;
    case E_MEETING_ATTENDEE_EDIT_STATUS:
        return col == E_MEETING_MODEL_STATUS_COL;
    case E_MEETING_ATTENDEE_EDIT_NONE:
        return FALSE;
    }

    return TRUE;
}

static void *
duplicate_value (ETableModel *etm, int col, const void *val)
{
    return g_strdup (val);
}

static void
free_value (ETableModel *etm, int col, void *val)
{
    g_free (val);
}

static void *
init_value (ETableModel *etm, int col)
{
    switch (col) {
    case E_MEETING_MODEL_ADDRESS_COL:
        return g_strdup ("");
    case E_MEETING_MODEL_MEMBER_COL:
        return g_strdup ("");
    case E_MEETING_MODEL_TYPE_COL:
        return g_strdup (_("Individual"));
    case E_MEETING_MODEL_ROLE_COL:
        return g_strdup (_("Required Participant"));
    case E_MEETING_MODEL_RSVP_COL:
        return g_strdup (_("Yes"));
    case E_MEETING_MODEL_DELTO_COL:
        return g_strdup ("");
    case E_MEETING_MODEL_DELFROM_COL:
        return g_strdup ("");
    case E_MEETING_MODEL_STATUS_COL:
        return g_strdup (_("Needs Action"));
    case E_MEETING_MODEL_CN_COL:
        return g_strdup ("");
    case E_MEETING_MODEL_LANGUAGE_COL:
        return g_strdup ("en");
    }
    
    return g_strdup ("");
}

static gboolean
value_is_empty (ETableModel *etm, int col, const void *val)
{
    
    switch (col) {
    case E_MEETING_MODEL_ADDRESS_COL:
    case E_MEETING_MODEL_MEMBER_COL:
    case E_MEETING_MODEL_DELTO_COL:
    case E_MEETING_MODEL_DELFROM_COL:
    case E_MEETING_MODEL_CN_COL:
        if (val && !g_strcasecmp (val, ""))
            return TRUE;
        else
            return FALSE;
    default:
        ;
    }
    
    return TRUE;
}

static char *
value_to_string (ETableModel *etm, int col, const void *val)
{
    return g_strdup (val);
}

static void *
get_key (ETableModel *source, int row, gpointer data) 
{
    EMeetingModel *im;
    EMeetingModelPrivate *priv;
    char *str;
    
    im = E_MEETING_MODEL (source);
    priv = im->priv;

    str = value_at (source, E_MEETING_MODEL_DELTO_COL, row);
    if (str && *str)
        return g_strdup ("delegator");

    return g_strdup ("none");
}

static void *
duplicate_key (const void *key, gpointer data) 
{
    return g_strdup (key);
}

static void
free_gotten_key (void *key, gpointer data)
{
    g_free (key);
}

static void
free_duplicated_key (void *key, gpointer data)
{
    g_free (key);
}

static void
class_init (EMeetingModelClass *klass)
{
    GObjectClass *gobject_class;
    ETableModelClass *etm_class;
    
    gobject_class = G_OBJECT_CLASS (klass);
    etm_class = E_TABLE_MODEL_CLASS (klass);

    parent_class = g_type_class_peek_parent (klass);

    gobject_class->finalize = finalize;

    etm_class->column_count = column_count;
    etm_class->row_count = row_count;
    etm_class->value_at = value_at;
    etm_class->set_value_at = set_value_at;
    etm_class->is_cell_editable = is_cell_editable;
    etm_class->append_row = append_row;
    etm_class->duplicate_value = duplicate_value;
    etm_class->free_value = free_value;
    etm_class->initialize_value = init_value;
    etm_class->value_is_empty = value_is_empty;
    etm_class->value_to_string = value_to_string;
}


static void
init (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;

    priv = g_new0 (EMeetingModelPrivate, 1);

    im->priv = priv;

    priv->attendees = g_ptr_array_new ();
    
    priv->without = E_TABLE_WITHOUT (e_table_without_new (E_TABLE_MODEL (im),
                                  g_str_hash,
                                  g_str_equal,
                                  get_key,
                                  duplicate_key,
                                  free_gotten_key,
                                  free_duplicated_key,
                                  NULL));
    e_table_without_hide (priv->without, g_strdup ("delegator"));
    priv->tables = NULL;

    priv->client = NULL;
    priv->zone = icaltimezone_get_builtin_timezone (calendar_config_get_timezone ());
    
    priv->ebook = NULL;
    priv->book_loaded = FALSE;
    priv->book_load_wait = FALSE;

    priv->refresh_queue = g_ptr_array_new ();
    priv->refresh_data = g_hash_table_new (g_direct_hash, g_direct_equal);
    priv->refresh_idle_id = -1;
    
    priv->corba_select_names = CORBA_OBJECT_NIL;
    
    start_addressbook_server (im);
}

static void
finalize (GObject *obj)
{
    EMeetingModel *im = E_MEETING_MODEL (obj);
    EMeetingModelPrivate *priv;
    GList *l;
    int i;
    
    priv = im->priv;

    for (i = 0; i < priv->attendees->len; i++)
        g_object_unref (g_ptr_array_index (priv->attendees, i));
    g_ptr_array_free (priv->attendees, TRUE); 

    for (l = priv->tables; l != NULL; l = l->next)
        g_signal_handlers_disconnect_matched (G_OBJECT (l->data), G_SIGNAL_MATCH_DATA,
                              0, 0, NULL, NULL, im);
    g_list_free (priv->tables);
    
    if (priv->client != NULL)
        g_object_unref (priv->client);

    if (priv->ebook != NULL)
        g_object_unref (priv->ebook);

    if (priv->corba_select_names != CORBA_OBJECT_NIL) {
        CORBA_Environment ev;
        CORBA_exception_init (&ev);
        bonobo_object_release_unref (priv->corba_select_names, &ev);
        CORBA_exception_free (&ev);
    }

    while (priv->refresh_queue->len > 0)
        refresh_queue_remove (im, g_ptr_array_index (priv->refresh_queue, 0));
    g_ptr_array_free (priv->refresh_queue, TRUE);
    g_hash_table_destroy (priv->refresh_data);
    
    if (priv->refresh_idle_id)
        g_source_remove (priv->refresh_idle_id);
        
    g_free (priv);
}

GtkObject *
e_meeting_model_new (void)
{
    return g_object_new (E_TYPE_MEETING_MODEL, NULL);
}


CalClient *
e_meeting_model_get_cal_client (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    
    priv = im->priv;

    return priv->client;
}

void
e_meeting_model_set_cal_client (EMeetingModel *im, CalClient *client)
{
    EMeetingModelPrivate *priv;
    
    priv = im->priv;

    if (priv->client != NULL)
        g_object_unref (priv->client);
    
    if (client != NULL)
        g_object_ref (client);
    priv->client = client;
}

icaltimezone *
e_meeting_model_get_zone (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    
    g_return_val_if_fail (im != NULL, NULL);
    g_return_val_if_fail (E_IS_MEETING_MODEL (im), NULL);

    priv = im->priv;
    
    return priv->zone;
}

void
e_meeting_model_set_zone (EMeetingModel *im, icaltimezone *zone)
{
    EMeetingModelPrivate *priv;
    
    g_return_if_fail (im != NULL);
    g_return_if_fail (E_IS_MEETING_MODEL (im));

    priv = im->priv;
    
    priv->zone = zone;
}

static ETableScrolled *
build_etable (ETableModel *model, const gchar *spec_file, const gchar *state_file)
{
    GtkWidget *etable;
    ETable *real_table;
    ETableExtras *extras;
    GList *strings;
    ECell *popup_cell, *cell;
    
    extras = e_table_extras_new ();

    /* For type */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);
    
    strings = NULL;
    strings = g_list_append (strings, (char*) _("Individual"));
    strings = g_list_append (strings, (char*) _("Group"));
    strings = g_list_append (strings, (char*) _("Resource"));
    strings = g_list_append (strings, (char*) _("Room"));
    strings = g_list_append (strings, (char*) _("Unknown"));

    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell), strings);
    e_table_extras_add_cell (extras, "typeedit", popup_cell);
    
    /* For role */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);
    
    strings = NULL;
    strings = g_list_append (strings, (char*) _("Chair"));
    strings = g_list_append (strings, (char*) _("Required Participant"));
    strings = g_list_append (strings, (char*) _("Optional Participant"));
    strings = g_list_append (strings, (char*) _("Non-Participant"));
    strings = g_list_append (strings, (char*) _("Unknown"));

    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell), strings);
    e_table_extras_add_cell (extras, "roleedit", popup_cell);

    /* For rsvp */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (char*) _("Yes"));
    strings = g_list_append (strings, (char*) _("No"));

    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell), strings);
    e_table_extras_add_cell (extras, "rsvpedit", popup_cell);

    /* For status */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (char*) _("Needs Action"));
    strings = g_list_append (strings, (char*) _("Accepted"));
    strings = g_list_append (strings, (char*) _("Declined"));
    strings = g_list_append (strings, (char*) _("Tentative"));
    strings = g_list_append (strings, (char*) _("Delegated"));

    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell), strings);
    e_table_extras_add_cell (extras, "statusedit", popup_cell);

    etable = e_table_scrolled_new_from_spec_file (model, extras, spec_file, NULL);
    real_table = e_table_scrolled_get_table (E_TABLE_SCROLLED (etable));
    g_object_set (G_OBJECT (real_table), "uniform_row_height", TRUE, NULL);
    e_table_load_state (real_table, state_file);

#if 0
    g_signal_connect (real_table, "right_click", G_CALLBACK (right_click_cb), mpage);
#endif

    g_signal_connect (etable, "destroy", G_CALLBACK (table_destroy_state_cb), g_strdup (state_file));

    g_object_unref (extras);
    
    return E_TABLE_SCROLLED (etable);
}

void
e_meeting_model_add_attendee (EMeetingModel *im, EMeetingAttendee *ia)
{
    EMeetingModelPrivate *priv;
    
    priv = im->priv;
    
    e_table_model_pre_change (E_TABLE_MODEL (im));

    g_object_ref (ia);
    g_ptr_array_add (priv->attendees, ia);
    
    g_signal_connect (ia, "changed", G_CALLBACK (attendee_changed_cb), im);

    e_table_model_row_inserted (E_TABLE_MODEL (im), row_count (E_TABLE_MODEL (im)) - 1);
}

EMeetingAttendee *
e_meeting_model_add_attendee_with_defaults (EMeetingModel *im)
{
    EMeetingAttendee *ia;
    char *str;
    
    ia = E_MEETING_ATTENDEE (e_meeting_attendee_new ());

    e_meeting_attendee_set_address (ia, init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_ADDRESS_COL));
    e_meeting_attendee_set_member (ia, init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_MEMBER_COL));

    str = init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_TYPE_COL);
    e_meeting_attendee_set_cutype (ia, text_to_type (str));
    g_free (str);
    str = init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_ROLE_COL);
    e_meeting_attendee_set_role (ia, text_to_role (str));
    g_free (str);   
    str = init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_RSVP_COL);
    e_meeting_attendee_set_rsvp (ia, text_to_boolean (str));
    g_free (str);
    
    e_meeting_attendee_set_delto (ia, init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_DELTO_COL));
    e_meeting_attendee_set_delfrom (ia, init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_DELFROM_COL));

    str = init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_STATUS_COL);
    e_meeting_attendee_set_status (ia, text_to_partstat (str));
    g_free (str);

    e_meeting_attendee_set_cn (ia, init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_CN_COL));
    e_meeting_attendee_set_language (ia, init_value (E_TABLE_MODEL (im), E_MEETING_MODEL_LANGUAGE_COL));

    e_meeting_model_add_attendee (im, ia);

    return ia;
}

void
e_meeting_model_remove_attendee (EMeetingModel *im, EMeetingAttendee *ia)
{
    EMeetingModelPrivate *priv;
    gint i, row = -1;
    
    priv = im->priv;
    
    for (i = 0; i < priv->attendees->len; i++) {
        if (ia == g_ptr_array_index (priv->attendees, i)) {
            row = i;
            break;
        }
    }
    
    if (row != -1) {
        e_table_model_pre_change (E_TABLE_MODEL (im));

        g_ptr_array_remove_index (priv->attendees, row);        
        g_object_unref (ia);

        e_table_model_row_deleted (E_TABLE_MODEL (im), row);
    }
}

void
e_meeting_model_remove_all_attendees (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    gint i, len;
    
    priv = im->priv;
    
    e_table_model_pre_change (E_TABLE_MODEL (im));

    len = priv->attendees->len;

    for (i = 0; i < len; i++) {
        EMeetingAttendee *ia = g_ptr_array_index (priv->attendees, i);
        g_object_unref (ia);
    }

    g_ptr_array_set_size (priv->attendees, 0);
    e_table_model_rows_deleted (E_TABLE_MODEL (im), 0, len);
}

EMeetingAttendee *
e_meeting_model_find_attendee (EMeetingModel *im, const gchar *address, gint *row)
{
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;
    int i;
    
    priv = im->priv;
    
    if (address == NULL)
        return NULL;
    
    for (i = 0; i < priv->attendees->len; i++) {
        const gchar *ia_address;
        
        ia = g_ptr_array_index (priv->attendees, i);
            
        ia_address = e_meeting_attendee_get_address (ia);
        if (ia_address && !g_strcasecmp (itip_strip_mailto (ia_address), itip_strip_mailto (address))) {
            if (row != NULL)
                *row = i;

            return ia;
        }
    }

    return NULL;
}

EMeetingAttendee *
e_meeting_model_find_attendee_at_row (EMeetingModel *im, gint row)
{
    EMeetingModelPrivate *priv;

    g_return_val_if_fail (im != NULL, NULL);
    g_return_val_if_fail (E_IS_MEETING_MODEL (im), NULL);
    g_return_val_if_fail (row >= 0, NULL);

    priv = im->priv;
    g_return_val_if_fail (row < priv->attendees->len, NULL);

    return g_ptr_array_index (priv->attendees, row);
}

gint 
e_meeting_model_count_actual_attendees (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    
    priv = im->priv;

    return e_table_model_row_count (E_TABLE_MODEL (priv->without)); 
}

const GPtrArray *
e_meeting_model_get_attendees (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    
    priv = im->priv;
    
    return priv->attendees;
}

static icaltimezone *
find_zone (icalproperty *ip, icalcomponent *tz_top_level)
{
    icalparameter *param;
    icalcomponent *sub_comp;
    const char *tzid;
    icalcompiter iter;

    if (tz_top_level == NULL)
        return NULL;
    
    param = icalproperty_get_first_parameter (ip, ICAL_TZID_PARAMETER);
    if (param == NULL)
        return NULL;
    tzid = icalparameter_get_tzid (param);

    iter = icalcomponent_begin_component (tz_top_level, ICAL_VTIMEZONE_COMPONENT);
    while ((sub_comp = icalcompiter_deref (&iter)) != NULL) {
        icalcomponent *clone;
        const char *tz_tzid;
        
        tz_tzid = icalproperty_get_tzid (sub_comp);
        if (!strcmp (tzid, tz_tzid)) {
            icaltimezone *zone;

            zone = icaltimezone_new ();
            clone = icalcomponent_new_clone (sub_comp);
            icaltimezone_set_component (zone, clone);
            
            return zone;
        }
        
        icalcompiter_next (&iter);
    }

    return NULL;
}


static void
refresh_queue_add (EMeetingModel *im, int row,
           EMeetingTime *start,
           EMeetingTime *end,
           EMeetingModelRefreshCallback call_back,
           gpointer data) 
{
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia;
    EMeetingModelQueueData *qdata;

    priv = im->priv;
    
    ia = g_ptr_array_index (priv->attendees, row);
    if (ia == NULL)
        return;

    qdata = g_hash_table_lookup (priv->refresh_data, ia);
    if (qdata == NULL) {
        qdata = g_new0 (EMeetingModelQueueData, 1);

        qdata->im = im;
        qdata->ia = ia;
        e_meeting_attendee_clear_busy_periods (ia);
        e_meeting_attendee_set_has_calendar_info (ia, FALSE);

            qdata->start = *start;
            qdata->end = *end;
        qdata->string = g_string_new (NULL);
        qdata->call_backs = g_ptr_array_new ();
        qdata->data = g_ptr_array_new ();
        g_ptr_array_add (qdata->call_backs, call_back);
        g_ptr_array_add (qdata->data, data);

        g_hash_table_insert (priv->refresh_data, ia, qdata);
    } else {
        if (e_meeting_time_compare_times (start, &qdata->start) == -1)
            qdata->start = *start;
        if (e_meeting_time_compare_times (end, &qdata->end) == 1)
            qdata->end = *end;
        g_ptr_array_add (qdata->call_backs, call_back);
        g_ptr_array_add (qdata->data, data);
    }

    g_object_ref (ia);
    g_ptr_array_add (priv->refresh_queue, ia);

    if (priv->refresh_idle_id == -1)
        priv->refresh_idle_id = g_idle_add (refresh_busy_periods, im);
}

static void
refresh_queue_remove (EMeetingModel *im, EMeetingAttendee *ia) 
{
    EMeetingModelPrivate *priv;
    EMeetingModelQueueData *qdata;
    
    priv = im->priv;
    
    /* Free the queue data */
    qdata = g_hash_table_lookup (priv->refresh_data, ia);
    g_assert (qdata != NULL);

    g_hash_table_remove (priv->refresh_data, ia);
    g_ptr_array_free (qdata->call_backs, TRUE);
    g_ptr_array_free (qdata->data, TRUE);
    g_free (qdata);

    /* Unref the attendee */
    g_ptr_array_remove (priv->refresh_queue, ia);
    g_object_unref (ia);
}

static void
process_callbacks (EMeetingModelQueueData *qdata) 
{
    int i;

    for (i = 0; i < qdata->call_backs->len; i++) {
        EMeetingModelRefreshCallback call_back;
        gpointer *data;

        call_back = g_ptr_array_index (qdata->call_backs, i);
        data = g_ptr_array_index (qdata->data, i);

        call_back (data);
    }

    refresh_queue_remove (qdata->im, qdata->ia);
}

static void
process_free_busy_comp (EMeetingAttendee *ia,
            icalcomponent *fb_comp,
            icaltimezone *zone,
            icalcomponent *tz_top_level)
{
    icalproperty *ip;
    
    ip = icalcomponent_get_first_property (fb_comp, ICAL_DTSTART_PROPERTY);
    if (ip != NULL) {
        struct icaltimetype dtstart;
        icaltimezone *ds_zone;
        
        dtstart = icalproperty_get_dtstart (ip);
        if (!dtstart.is_utc)
            ds_zone = find_zone (ip, tz_top_level);
        else
            ds_zone = icaltimezone_get_utc_timezone ();
        icaltimezone_convert_time (&dtstart, ds_zone, zone);
        e_meeting_attendee_set_start_busy_range (ia,
                             dtstart.year,
                             dtstart.month,
                             dtstart.day,
                             dtstart.hour,
                             dtstart.minute);
    }
    
    ip = icalcomponent_get_first_property (fb_comp, ICAL_DTEND_PROPERTY);
    if (ip != NULL) {
        struct icaltimetype dtend;
        icaltimezone *de_zone;
        
        dtend = icalproperty_get_dtend (ip);
        if (!dtend.is_utc)
            de_zone = find_zone (ip, tz_top_level);
        else
            de_zone = icaltimezone_get_utc_timezone ();
        icaltimezone_convert_time (&dtend, de_zone, zone);
        e_meeting_attendee_set_end_busy_range (ia,
                               dtend.year,
                               dtend.month,
                               dtend.day,
                               dtend.hour,
                               dtend.minute);
    }
    
    ip = icalcomponent_get_first_property (fb_comp, ICAL_FREEBUSY_PROPERTY);
    while (ip != NULL) {
        icalparameter *param;
        struct icalperiodtype fb;
        EMeetingFreeBusyType busy_type = E_MEETING_FREE_BUSY_LAST;
        icalparameter_fbtype fbtype = ICAL_FBTYPE_BUSY;
            
        fb = icalproperty_get_freebusy (ip);
        param = icalproperty_get_first_parameter (ip, ICAL_FBTYPE_PARAMETER);
        if (param != NULL)
            fbtype =  icalparameter_get_fbtype (param);
            
        switch (fbtype) {
        case ICAL_FBTYPE_BUSY:
            busy_type = E_MEETING_FREE_BUSY_BUSY;
            break;

        case ICAL_FBTYPE_BUSYUNAVAILABLE:
            busy_type = E_MEETING_FREE_BUSY_OUT_OF_OFFICE;
            break;

        case ICAL_FBTYPE_BUSYTENTATIVE:
            busy_type = E_MEETING_FREE_BUSY_TENTATIVE;
            break;

        default:
            break;
        }
            
        if (busy_type != E_MEETING_FREE_BUSY_LAST) {
            icaltimezone *utc_zone = icaltimezone_get_utc_timezone ();

            icaltimezone_convert_time (&fb.start, utc_zone, zone);
            icaltimezone_convert_time (&fb.end, utc_zone, zone);
            e_meeting_attendee_add_busy_period (ia,
                                fb.start.year,
                                fb.start.month,
                                fb.start.day,
                                fb.start.hour,
                                fb.start.minute,
                                fb.end.year,
                                fb.end.month,
                                fb.end.day,
                                fb.end.hour,
                                fb.end.minute,
                                busy_type);
        }
        
        ip = icalcomponent_get_next_property (fb_comp, ICAL_FREEBUSY_PROPERTY);
    }
}

static void
process_free_busy (EMeetingModelQueueData *qdata, char *text)
{
    EMeetingModel *im = qdata->im;
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia = qdata->ia;
    icalcomponent *main_comp;
    icalcomponent_kind kind = ICAL_NO_COMPONENT;

    priv = im->priv;

    main_comp = icalparser_parse_string (text);
    if (main_comp == NULL) {
        process_callbacks (qdata);
        return;
    }

    kind = icalcomponent_isa (main_comp);
    if (kind == ICAL_VCALENDAR_COMPONENT) { 
        icalcompiter iter;
        icalcomponent *tz_top_level, *sub_comp;

        tz_top_level = cal_util_new_top_level ();
        
        iter = icalcomponent_begin_component (main_comp, ICAL_VTIMEZONE_COMPONENT);
        while ((sub_comp = icalcompiter_deref (&iter)) != NULL) {
            icalcomponent *clone;
            
            clone = icalcomponent_new_clone (sub_comp);
            icalcomponent_add_component (tz_top_level, clone);
            
            icalcompiter_next (&iter);
        }

        iter = icalcomponent_begin_component (main_comp, ICAL_VFREEBUSY_COMPONENT);
        while ((sub_comp = icalcompiter_deref (&iter)) != NULL) {
            process_free_busy_comp (ia, sub_comp, priv->zone, tz_top_level);

            icalcompiter_next (&iter);
        }
        icalcomponent_free (tz_top_level);
    } else if (kind == ICAL_VFREEBUSY_COMPONENT) {
        process_free_busy_comp (ia, main_comp, priv->zone, NULL);
    } else {
        return;
    }
    
    icalcomponent_free (main_comp);

    process_callbacks (qdata);
}

static void
async_close (GnomeVFSAsyncHandle *handle,
         GnomeVFSResult result,
         gpointer data)
{
    EMeetingModelQueueData *qdata = data;

    process_free_busy (qdata, qdata->string->str);
}

static void
async_read (GnomeVFSAsyncHandle *handle,
        GnomeVFSResult result,
        gpointer buffer,
        GnomeVFSFileSize requested,
        GnomeVFSFileSize read,
        gpointer data)
{
    EMeetingModelQueueData *qdata = data;
    GnomeVFSFileSize buf_size = BUF_SIZE - 1;

    if (result != GNOME_VFS_OK && result != GNOME_VFS_ERROR_EOF) {
        gnome_vfs_async_close (handle, async_close, qdata);
        return;
    }
    
    ((char *)buffer)[read] = '\0';
    qdata->string = g_string_append (qdata->string, buffer);
    
    if (result == GNOME_VFS_ERROR_EOF) {
        gnome_vfs_async_close (handle, async_close, qdata);
        return;
    }

    gnome_vfs_async_read (handle, qdata->buffer, buf_size, async_read, qdata);  
}

static void
async_open (GnomeVFSAsyncHandle *handle,
        GnomeVFSResult result,
        gpointer data)
{
    EMeetingModelQueueData *qdata = data;
    GnomeVFSFileSize buf_size = BUF_SIZE - 1;

    if (result != GNOME_VFS_OK) {
        gnome_vfs_async_close (handle, async_close, qdata);
        return;
    }

    gnome_vfs_async_read (handle, qdata->buffer, buf_size, async_read, qdata);
}

static void
cursor_cb (EBook *book, EBookStatus status, ECardCursor *cursor, gpointer data)
{
    EMeetingModelQueueData *qdata = data;
    int length, i;

    if (status != E_BOOK_STATUS_SUCCESS)
        return;

    length = e_card_cursor_get_length (cursor);
    for (i = 0; i < length; i ++) {
        GnomeVFSAsyncHandle *handle;
        ECard *card = e_card_cursor_get_nth (cursor, i);
        const char *addr;
        
        if (card->fburl == NULL)
            continue;

        addr = itip_strip_mailto (e_meeting_attendee_get_address (qdata->ia));
        if (!e_card_email_match_string (card, addr))
            continue;

        /* Read in free/busy data from the url */
        gnome_vfs_async_open (&handle, card->fburl, GNOME_VFS_OPEN_READ, 
                      GNOME_VFS_PRIORITY_DEFAULT, async_open, qdata);
        return;
    }

    process_callbacks (qdata);
}

static gboolean
refresh_busy_periods (gpointer data)
{   
    EMeetingModel *im = E_MEETING_MODEL (data);
    EMeetingModelPrivate *priv;
    EMeetingAttendee *ia = NULL;
    EMeetingModelQueueData *qdata = NULL;
    char *query;
    int i;
    
    priv = im->priv;

    /* Check to see if there are any remaining attendees in the queue */
    for (i = 0; i < priv->refresh_queue->len; i++) {
        ia = g_ptr_array_index (priv->refresh_queue, i);
        g_assert (ia != NULL);

        qdata = g_hash_table_lookup (priv->refresh_data, ia);
        g_assert (qdata != NULL);

        if (!qdata->refreshing)
            break;
    }

    /* The everything in the queue is being refreshed */
    if (i >= priv->refresh_queue->len) {
        priv->refresh_idle_id = -1;
        return FALSE;
    }
    
    /* Indicate we are trying to refresh it */
    qdata->refreshing = TRUE;
    
    /* Check the server for free busy data */   
    if (priv->client) {
        GList *fb_data, *users = NULL;
        struct icaltimetype itt;
        time_t startt, endt;
        const char *user;
        
        itt = icaltime_null_time ();
        itt.year = g_date_year (&qdata->start.date);
        itt.month = g_date_month (&qdata->start.date);
        itt.day = g_date_day (&qdata->start.date);
        itt.hour = qdata->start.hour;
        itt.minute = qdata->start.minute;
        startt = icaltime_as_timet_with_zone (itt, priv->zone);

        itt = icaltime_null_time ();
        itt.year = g_date_year (&qdata->end.date);
        itt.month = g_date_month (&qdata->end.date);
        itt.day = g_date_day (&qdata->end.date);
        itt.hour = qdata->end.hour;
        itt.minute = qdata->end.minute;
        endt = icaltime_as_timet_with_zone (itt, priv->zone);

        user = itip_strip_mailto (e_meeting_attendee_get_address (ia));
        users = g_list_append (users, g_strdup (user));
        fb_data = cal_client_get_free_busy (priv->client, users, startt, endt);

        g_list_foreach (users, (GFunc)g_free, NULL);
        g_list_free (users);

        if (fb_data != NULL) {
            CalComponent *comp = fb_data->data;
            char *comp_str;
                
            comp_str = cal_component_get_as_string (comp);
            process_free_busy (qdata, comp_str);
            g_free (comp_str);
            return TRUE;
        }
    }

    /* Look for fburl's of attendee with no free busy info on server */
    if (!priv->book_loaded) {
        priv->book_load_wait = TRUE;
        gtk_main ();
    }

    if (!e_meeting_attendee_is_set_address (ia)) {
        process_callbacks (qdata);
        return TRUE;
    }
    
    query = g_strdup_printf ("(contains \"email\" \"%s\")", 
                 itip_strip_mailto (e_meeting_attendee_get_address (ia)));
    e_book_get_cursor (priv->ebook, query, cursor_cb, qdata);
    g_free (query);

    return TRUE;
}
        
void
e_meeting_model_refresh_all_busy_periods (EMeetingModel *im,
                      EMeetingTime *start,
                      EMeetingTime *end,
                      EMeetingModelRefreshCallback call_back,
                      gpointer data)
{
    EMeetingModelPrivate *priv;
    int i;
    
    g_return_if_fail (im != NULL);
    g_return_if_fail (E_IS_MEETING_MODEL (im));

    priv = im->priv;
    
    for (i = 0; i < priv->attendees->len; i++)
        refresh_queue_add (im, i, start, end, call_back, data);
}

void 
e_meeting_model_refresh_busy_periods (EMeetingModel *im,
                      int row,
                      EMeetingTime *start,
                      EMeetingTime *end,
                      EMeetingModelRefreshCallback call_back,
                      gpointer data)
{
    EMeetingModelPrivate *priv;
    
    g_return_if_fail (im != NULL);
    g_return_if_fail (E_IS_MEETING_MODEL (im));

    priv = im->priv;

    refresh_queue_add (im, row, start, end, call_back, data);
}

ETableScrolled *
e_meeting_model_etable_from_model (EMeetingModel *im, const gchar *spec_file, const gchar *state_file)
{
    EMeetingModelPrivate *priv;
    ETableScrolled *ets;
    
    g_return_val_if_fail (im != NULL, NULL);
    g_return_val_if_fail (E_IS_MEETING_MODEL (im), NULL);

    priv = im->priv;
    
    ets = build_etable (E_TABLE_MODEL (priv->without), spec_file, state_file);

    priv->tables = g_list_prepend (priv->tables, ets);

    g_signal_connect (ets, "destroy", G_CALLBACK (table_destroy_list_cb), im);
    
    return ets;
}

void
e_meeting_model_etable_click_to_add (EMeetingModel *im, gboolean click_to_add)
{
    EMeetingModelPrivate *priv;
    GList *l;
    
    g_return_if_fail (im != NULL);
    g_return_if_fail (E_IS_MEETING_MODEL (im));

    priv = im->priv;

    for (l = priv->tables; l != NULL; l = l->next) {
        ETableScrolled *ets;
        ETable *real_table;
        
        ets = l->data;
        real_table = e_table_scrolled_get_table (ets);

        g_object_set (G_OBJECT (real_table), "use_click_to_add", click_to_add, NULL);
    }
}

int
e_meeting_model_etable_model_to_view_row (ETable *et, EMeetingModel *im, int model_row)
{
    EMeetingModelPrivate *priv;
    int row;
    
    g_return_val_if_fail (im != NULL, -1);
    g_return_val_if_fail (E_IS_MEETING_MODEL (im), -1);
    
    priv = im->priv;
    
    row = e_table_model_to_view_row (et, model_row);
    if (row == -1)
        return -1;
    
    return e_table_subset_model_to_view_row (E_TABLE_SUBSET (priv->without), row);
}

int
e_meeting_model_etable_view_to_model_row (ETable *et, EMeetingModel *im, int view_row)
{
    EMeetingModelPrivate *priv;
    int row;
    
    g_return_val_if_fail (im != NULL, -1);
    g_return_val_if_fail (E_IS_MEETING_MODEL (im), -1);
    
    priv = im->priv;
    
    row = e_table_view_to_model_row (et, view_row);
    if (row == -1)
        return -1;
    
    return e_table_subset_view_to_model_row (E_TABLE_SUBSET (priv->without), row);
}


static void
add_section (GNOME_Evolution_Addressbook_SelectNames corba_select_names, const char *name)
{
    CORBA_Environment ev;

    CORBA_exception_init (&ev);

    GNOME_Evolution_Addressbook_SelectNames_addSection (corba_select_names,
                                name, 
                                gettext (name),
                                &ev);

    CORBA_exception_free (&ev);
}

static gboolean
get_select_name_dialog (EMeetingModel *im) 
{
    EMeetingModelPrivate *priv;
    CORBA_Environment ev;
    int i;
    
    priv = im->priv;

    if (priv->corba_select_names != CORBA_OBJECT_NIL) {
        Bonobo_Control corba_control;
        GtkWidget *control_widget;
        int i;
        
        CORBA_exception_init (&ev);
        for (i = 0; sections[i] != NULL; i++) {         
            corba_control = GNOME_Evolution_Addressbook_SelectNames_getEntryBySection 
                (priv->corba_select_names, sections[i], &ev);
            if (BONOBO_EX (&ev)) {
                CORBA_exception_free (&ev);
                return FALSE;               
            }
            
            control_widget = bonobo_widget_new_control_from_objref (corba_control, CORBA_OBJECT_NIL);
            
            bonobo_widget_set_property (BONOBO_WIDGET (control_widget), "text", TC_CORBA_string, "", NULL);     
        }
        CORBA_exception_free (&ev);

        return TRUE;
    }
    
    CORBA_exception_init (&ev);

    priv->corba_select_names = bonobo_activation_activate_from_id (SELECT_NAMES_OAFID, 0, NULL, &ev);

    for (i = 0; sections[i] != NULL; i++)
        add_section (priv->corba_select_names, sections[i]);

    bonobo_event_source_client_add_listener (priv->corba_select_names,
                         (BonoboListenerCallbackFn) select_names_ok_cb,
                         "GNOME/Evolution:ok:dialog",
                         NULL, im);
    
    if (BONOBO_EX (&ev)) {
        CORBA_exception_free (&ev);
        return FALSE;
    }

    CORBA_exception_free (&ev);

    return TRUE;
}

void
e_meeting_model_invite_others_dialog (EMeetingModel *im)
{
    EMeetingModelPrivate *priv;
    CORBA_Environment ev;

    priv = im->priv;
    
    if (!get_select_name_dialog (im))
        return;

    CORBA_exception_init (&ev);

    GNOME_Evolution_Addressbook_SelectNames_activateDialog (
        priv->corba_select_names, _("Required Participants"), &ev);

    CORBA_exception_free (&ev);
}

static void
process_section (EMeetingModel *im, GNOME_Evolution_Addressbook_SimpleCardList *cards, icalparameter_role role)
{
    EMeetingModelPrivate *priv;
    int i;

    priv = im->priv;
    for (i = 0; i < cards->_length; i++) {
        EMeetingAttendee *ia;
        const char *name, *attendee = NULL, *attr;
        GNOME_Evolution_Addressbook_SimpleCard card;
        CORBA_Environment ev;

        card = cards->_buffer[i];

        CORBA_exception_init (&ev);

        /* Get the CN */
        name = GNOME_Evolution_Addressbook_SimpleCard_get (card, GNOME_Evolution_Addressbook_SimpleCard_FullName, &ev);
        if (BONOBO_EX (&ev)) {
            CORBA_exception_free (&ev);
            continue;
        }

        /* Get the field as attendee from the backend */
        attr = cal_client_get_ldap_attribute (priv->client);
        if (attr) {
            /* FIXME this should be more general */
            if (!strcmp (attr, "icscalendar"))
                attendee = GNOME_Evolution_Addressbook_SimpleCard_get (card, GNOME_Evolution_Addressbook_SimpleCard_Icscalendar, &ev);
        }

        CORBA_exception_init (&ev);

        /* If we couldn't get the attendee prior, get the email address as the default */
        if (attendee == NULL || *attendee == '\0') {
            attendee = GNOME_Evolution_Addressbook_SimpleCard_get (card, GNOME_Evolution_Addressbook_SimpleCard_Email, &ev);
            if (BONOBO_EX (&ev)) {
                CORBA_exception_free (&ev);
                continue;
            }
        }
        
        CORBA_exception_free (&ev);

        if (attendee == NULL || *attendee == '\0')
            continue;
        
        if (e_meeting_model_find_attendee (im, attendee, NULL) == NULL) {
            ia = e_meeting_model_add_attendee_with_defaults (im);

            e_meeting_attendee_set_address (ia, g_strdup_printf ("MAILTO:%s", attendee));
            e_meeting_attendee_set_role (ia, role);
            if (role == ICAL_ROLE_NONPARTICIPANT)
                e_meeting_attendee_set_cutype (ia, ICAL_CUTYPE_RESOURCE);
            e_meeting_attendee_set_cn (ia, g_strdup (name));
        }
    }
}

static void
select_names_ok_cb (BonoboListener    *listener,
            const char        *event_name,
            const CORBA_any   *arg,
            CORBA_Environment *ev,
            gpointer           data)
{
    EMeetingModel *im = data;
    EMeetingModelPrivate *priv;
    Bonobo_Control corba_control;
    GtkWidget *control_widget;
    BonoboControlFrame *control_frame;
    Bonobo_PropertyBag pb;
    BonoboArg *card_arg;
    GNOME_Evolution_Addressbook_SimpleCardList cards;
    int i;
    
    priv = im->priv;

    for (i = 0; sections[i] != NULL; i++) {
        corba_control = GNOME_Evolution_Addressbook_SelectNames_getEntryBySection 
            (priv->corba_select_names, sections[i], ev);
        control_widget = bonobo_widget_new_control_from_objref
            (corba_control, CORBA_OBJECT_NIL);

        control_frame = bonobo_widget_get_control_frame (BONOBO_WIDGET (control_widget));
        pb = bonobo_control_frame_get_control_property_bag (control_frame, NULL);
        card_arg = bonobo_property_bag_client_get_value_any (pb, "simple_card_list", NULL);
        if (card_arg != NULL) {
            cards = BONOBO_ARG_GET_GENERAL (card_arg, TC_GNOME_Evolution_Addressbook_SimpleCardList, GNOME_Evolution_Addressbook_SimpleCardList, NULL);
            process_section (im, &cards, roles[i]);
            bonobo_arg_release (card_arg);
        }
    }
}

static void
attendee_changed_cb (EMeetingAttendee *ia, gpointer data) 
{
    EMeetingModel *im = E_MEETING_MODEL (data);
    EMeetingModelPrivate *priv;
    gint row = -1, i;
    
    priv = im->priv;

    for (i = 0; i < priv->attendees->len; i++) {
        if (ia == g_ptr_array_index (priv->attendees, i)) {
            row = i;
            break;
        }
    }
    
    if (row == -1)
        return;
    
    /* FIXME: Ideally I think you are supposed to call pre_change() before
       the data structures are changed. */
    e_table_model_pre_change (E_TABLE_MODEL (im));
    e_table_model_row_changed (E_TABLE_MODEL (im), row);
}

static void
table_destroy_state_cb (ETableScrolled *etable, gpointer data)
{
    ETable *real_table;
    char *filename = data;
    
    real_table = e_table_scrolled_get_table (etable);
    e_table_save_state (real_table, filename);

    g_free (data);
}

static void
table_destroy_list_cb (ETableScrolled *etable, gpointer data)
{
    EMeetingModel *im = E_MEETING_MODEL (data);
    EMeetingModelPrivate *priv;

    priv = im->priv;
    
    priv->tables = g_list_remove (priv->tables, etable);
}