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/*
 * Evolution calendar - Send calendar component dialog
 *
 * This program 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 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      JP Rosevear <jpr@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include "e-util/e-alert-dialog.h"
#include "cancel-comp.h"

/* is_past_event:
 *
 * returns TRUE if @comp is in the past, FALSE otherwise.
 * Comparision is based only on date part, time part is ignored.
 */
static gboolean
is_past_event (ECalComponent *comp)
{
    ECalComponentDateTime end_date;
    gboolean res;

    if (!comp) return TRUE;

    e_cal_component_get_dtend (comp, &end_date);
    res = icaltime_compare_date_only (
        *end_date.value,
        icaltime_current_time_with_zone (
        icaltime_get_timezone (*end_date.value))) == -1;
    e_cal_component_free_datetime (&end_date);

    return res;
}

/**
 * cancel_component_dialog:
 *
 * Pops up a dialog box asking the user whether he wants to send a
 * cancel and delete an iTip/iMip message
 *
 * Return value: TRUE if the user clicked Yes, FALSE otherwise.
 **/
gboolean
cancel_component_dialog (GtkWindow *parent,
                         ECalClient *cal_client,
                         ECalComponent *comp,
                         gboolean deleting)
{
    ECalComponentVType vtype;
    const gchar *id;

    if (deleting && e_cal_client_check_save_schedules (cal_client))
        return TRUE;

    vtype = e_cal_component_get_vtype (comp);

    switch (vtype) {
    case E_CAL_COMPONENT_EVENT:
        if (is_past_event (comp)) {
            /* don't ask neither send notification to others on past events */
            return FALSE;
        }
        if (deleting)
            id = "calendar:prompt-cancel-meeting";
        else
            id = "calendar:prompt-delete-meeting";
        break;

    case E_CAL_COMPONENT_TODO:
        if (deleting)
            id = "calendar:prompt-cancel-task";
        else
            id = "calendar:prompt-delete-task";
        break;

    case E_CAL_COMPONENT_JOURNAL:
        if (deleting)
            id = "calendar:prompt-cancel-memo";
        else
            id = "calendar:prompt-delete-memo";
        break;

    default:
        g_message (G_STRLOC ": Cannot handle object of type %d", vtype);
        return FALSE;
    }

    if (e_alert_run_dialog_for_args (parent, id, NULL) == GTK_RESPONSE_YES)
        return TRUE;
    else
        return FALSE;
}