path: root/calendar/gui/itip-utils.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Authors:
 *  JP Rosevear <jpr@ximian.com>
 *
 * Copyright 2001, Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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
 */

#include <bonobo/bonobo-object.h>
#include <bonobo/bonobo-object-client.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <libgnomeui/gnome-dialog.h>
#include <libgnomeui/gnome-dialog-util.h>
#include <gtk/gtkwidget.h>
#include <ical.h>
#include <Evolution-Composer.h>
#include "itip-utils.h"

#define GNOME_EVOLUTION_COMPOSER_OAFIID "OAFIID:GNOME_Evolution_Mail_Composer"

static gchar *itip_methods[] = {
    "PUBLISH",
    "REQUEST",
    "REPLY",
    "ADD",
    "CANCEL",
    "RERESH",
    "COUNTER",
    "DECLINECOUNTER"
};

static icalproperty_method itip_methods_enum[] = {
    ICAL_METHOD_PUBLISH,
    ICAL_METHOD_REQUEST,
    ICAL_METHOD_REPLY,
    ICAL_METHOD_ADD,
    ICAL_METHOD_CANCEL,
    ICAL_METHOD_REFRESH,
    ICAL_METHOD_COUNTER,
    ICAL_METHOD_DECLINECOUNTER,
};

gchar *partstat_values[] = {
    "Needs action",
    "Accepted",
    "Declined",
    "Tentative",
    "Delegated",
    "Completed",
    "In Progress",
    "Unknown"
};

gchar *role_values[] = {
    "Chair",
    "Required Participant",
    "Optional Participant",
    "Non-Participant"
};



/* Note that I have to iterate and check myself because
   ical_property_get_xxx_parameter doesn't take into account the
   kind of parameter for which you wish to search! */
icalparameter *
get_icalparam_by_type (icalproperty *prop, icalparameter_kind kind)
{
    icalparameter *param;

    for (param = icalproperty_get_first_parameter (prop, ICAL_ANY_PARAMETER);
         param != NULL && icalparameter_isa (param) != kind;
         param = icalproperty_get_next_parameter (prop, ICAL_ANY_PARAMETER) );

    return param;
}

static void
error_dialog (gchar *str) 
{
    GtkWidget *dlg;
    
    dlg = gnome_error_dialog (str);
    gnome_dialog_run_and_close (GNOME_DIALOG (dlg));
}

void
itip_send_comp (CalComponentItipMethod method, CalComponent *comp)
{
    BonoboObjectClient *bonobo_server;
    GNOME_Evolution_Composer composer_server;
    CORBA_Environment ev;
    GSList *attendees, *l;
    GNOME_Evolution_Composer_RecipientList *to_list, *cc_list, *bcc_list;
    GNOME_Evolution_Composer_Recipient *recipient;
    CORBA_char *subject;
    gint cntr;
    gint len;
    CalComponentText caltext;
    CalComponentOrganizer organizer;
    CORBA_char *content_type, *filename, *description;
    GNOME_Evolution_Composer_AttachmentData *attach_data;
    CORBA_boolean show_inline;
    CORBA_char tempstr[200];
    
    CORBA_exception_init (&ev);

    /* First, I obtain an object reference that represents the Composer. */
    bonobo_server = bonobo_object_activate (GNOME_EVOLUTION_COMPOSER_OAFIID, 0);
    g_return_if_fail (bonobo_server != NULL);

    composer_server = BONOBO_OBJREF (bonobo_server);

    switch (method) {
    case CAL_COMPONENT_METHOD_PUBLISH:
        to_list = GNOME_Evolution_Composer_RecipientList__alloc ();
        to_list->_maximum = to_list->_length = 0;
        break;

    case CAL_COMPONENT_METHOD_REQUEST:
    case CAL_COMPONENT_METHOD_CANCEL:
        cal_component_get_attendee_list (comp, &attendees);
        len = g_slist_length (attendees);
        
        to_list = GNOME_Evolution_Composer_RecipientList__alloc ();
        to_list->_maximum = len;
        to_list->_length = len;
        to_list->_buffer = CORBA_sequence_GNOME_Evolution_Composer_Recipient_allocbuf (len);
        
        for (cntr = 0, l = attendees; cntr < len; cntr++, l = l->next) {
            CalComponentAttendee *att = l->data;
            
            recipient = &(to_list->_buffer[cntr]);
            if (att->cn)
                recipient->name = CORBA_string_dup (att->cn);
            else
                recipient->name = CORBA_string_dup ("");
            recipient->address = CORBA_string_dup (att->value);
        }
        break;

    case CAL_COMPONENT_METHOD_REPLY:
    case CAL_COMPONENT_METHOD_ADD:
    case CAL_COMPONENT_METHOD_REFRESH:
    case CAL_COMPONENT_METHOD_COUNTER:
    case CAL_COMPONENT_METHOD_DECLINECOUNTER:
        cal_component_get_organizer (comp, &organizer);
        if (organizer.value == NULL) {
            error_dialog (_("An organizer must be set."));
            return;
        }
        
        len = 1;

        to_list = GNOME_Evolution_Composer_RecipientList__alloc ();
        to_list->_maximum = len;
        to_list->_length = len;
        to_list->_buffer = CORBA_sequence_GNOME_Evolution_Composer_Recipient_allocbuf (len);
        recipient = &(to_list->_buffer[0]);

        if (organizer.cn != NULL)
            recipient->name = CORBA_string_dup (organizer.cn);
        else
            recipient->name = CORBA_string_dup ("");
        recipient->address = CORBA_string_dup (organizer.value);
        break;
    }

    cc_list = GNOME_Evolution_Composer_RecipientList__alloc ();
    cc_list->_maximum = cc_list->_length = 0;
    bcc_list = GNOME_Evolution_Composer_RecipientList__alloc ();
    bcc_list->_maximum = bcc_list->_length = 0;
    
    cal_component_get_summary (comp, &caltext);
    subject = CORBA_string_dup (caltext.value);

    GNOME_Evolution_Composer_setHeaders (composer_server, to_list, cc_list, bcc_list, subject, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_warning ("Unable to set composer headers while sending iTip message");
        CORBA_exception_free (&ev);
        return;
    }

    sprintf (tempstr, "text/calendar;METHOD=%s", itip_methods[method]);
    content_type = CORBA_string_dup (tempstr);
    filename = CORBA_string_dup ("");
    sprintf (tempstr, "Calendar attachment");
    description = CORBA_string_dup (tempstr);
    show_inline = FALSE;

    /* I need to create an encapsulating iCalendar component, and stuff our vEvent
       into it. */
    {
        icalcomponent *icomp, *clone;
        icalproperty *prop;
        icalvalue *value;
        gchar *ical_string;

        icomp = icalcomponent_new (ICAL_VCALENDAR_COMPONENT);
        
        prop = icalproperty_new (ICAL_PRODID_PROPERTY);
        value = icalvalue_new_text ("-//Ximian/Evolution//EN");
        icalproperty_set_value (prop, value);
        icalcomponent_add_property (icomp, prop);

        prop = icalproperty_new (ICAL_VERSION_PROPERTY);
        value = icalvalue_new_text ("2.0");
        icalproperty_set_value (prop, value);
        icalcomponent_add_property (icomp, prop);

        prop = icalproperty_new (ICAL_METHOD_PROPERTY);
        value = icalvalue_new_method (itip_methods_enum[method]);
        icalproperty_set_value (prop, value);
        icalcomponent_add_property (icomp, prop);

        clone = icalcomponent_new_clone (cal_component_get_icalcomponent (comp));
        icalcomponent_add_component (icomp, clone);

        ical_string = icalcomponent_as_ical_string (icomp);
        attach_data = GNOME_Evolution_Composer_AttachmentData__alloc ();
        attach_data->_maximum = attach_data->_length = strlen (ical_string);        
        attach_data->_buffer = CORBA_sequence_CORBA_char_allocbuf (attach_data->_length);   
        strcpy (attach_data->_buffer, ical_string);

        icalcomponent_free (icomp);
    }

    GNOME_Evolution_Composer_attachData (composer_server, 
                    content_type, filename, description,
                    show_inline, attach_data,
                    &ev);
    
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_warning ("Unable to attach data to the composer while sending iTip message");
        CORBA_exception_free (&ev);
        return;
    }
    
    if (method == CAL_COMPONENT_METHOD_PUBLISH)
        GNOME_Evolution_Composer_show (composer_server, &ev);
    else
        GNOME_Evolution_Composer_send (composer_server, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        g_warning ("Unable to show the composer while sending iTip message");
        CORBA_exception_free (&ev);
        return;
    }
    
    CORBA_exception_free (&ev);

    /* Let's free shit up. */

    /* Beware--depending on whether CORBA_free is recursive, which I
       think is is, we might have memory leaks, in which case the code
       below is necessary. */
#if 0
    for (cntr = 0; cntr < priv->numentries; cntr++) {
        recipient = &(to_list->_buffer[cntr]);
        CORBA_free (recipient->name);
        CORBA_free (recipient->address);
        recipient->name = recipient->address = NULL;
    }
#endif

    if (CORBA_sequence_get_release (to_list) != FALSE)
        CORBA_free (to_list->_buffer);

    CORBA_free (to_list);
    CORBA_free (cc_list);
    CORBA_free (bcc_list);

    CORBA_free (subject);
    CORBA_free (content_type);
    CORBA_free (filename);
    CORBA_free (description);
    CORBA_free (attach_data);

    /* bonobo_object_unref (BONOBO_OBJECT (bonobo_server));   */
}