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path: root/calendar/gui/e-calendar-view.c
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/*
 * 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:
 *      Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <string.h>
#include <time.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gdk/gdkkeysyms.h>
#include <libedataserver/e-time-utils.h>
#include <e-util/e-util.h>
#include <e-util/e-error.h>
#include <e-util/e-dialog-utils.h>
#include <e-util/e-icon-factory.h>
#include <libecal/e-cal-time-util.h>
#include <libecal/e-cal-component.h>

#include "common/authentication.h"
#include "calendar-commands.h"
#include "calendar-component.h"
#include "calendar-config.h"
#include "comp-util.h"
#include "e-cal-model-calendar.h"
#include "e-calendar-view.h"
#include "e-comp-editor-registry.h"
#include "itip-utils.h"
#include "dialogs/delete-comp.h"
#include "dialogs/delete-error.h"
#include "dialogs/event-editor.h"
#include "dialogs/send-comp.h"
#include "dialogs/cancel-comp.h"
#include "dialogs/recur-comp.h"
#include "dialogs/select-source-dialog.h"
#include "print.h"
#include "goto.h"
#include "ea-calendar.h"
#include "e-cal-popup.h"
#include "misc.h"

struct _ECalendarViewPrivate {
    /* The GnomeCalendar we are associated to */
    GnomeCalendar *calendar;

    /* The calendar model we are monitoring */
    ECalModel *model;

    /* Current activity (for the EActivityHandler, i.e. the status bar).  */
    EActivityHandler *activity_handler;
    guint activity_id;

    /* The default category */
    gchar *default_category;
};

static void e_calendar_view_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec);
static void e_calendar_view_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec);
static void e_calendar_view_destroy (GtkObject *object);

extern ECompEditorRegistry *comp_editor_registry;

/* Property IDs */
enum props {
    PROP_0,
    PROP_MODEL
};

/* FIXME Why are we emitting these event signals here? Can't the model just be listened to? */
/* Signal IDs */
enum {
    SELECTION_CHANGED,
    SELECTED_TIME_CHANGED,
    TIMEZONE_CHANGED,
    EVENT_CHANGED,
    EVENT_ADDED,
    USER_CREATED,
    OPEN_EVENT,
    LAST_SIGNAL
};

static guint e_calendar_view_signals[LAST_SIGNAL] = { 0 };

G_DEFINE_TYPE (ECalendarView, e_calendar_view, GTK_TYPE_TABLE)

enum TargetType{
    TARGET_TYPE_VCALENDAR
};

static GtkTargetEntry target_types[] = {
    { (gchar *) "text/x-calendar", 0, TARGET_TYPE_VCALENDAR },
    { (gchar *) "text/calendar",   0, TARGET_TYPE_VCALENDAR }
};

static guint n_target_types = G_N_ELEMENTS (target_types);

static void
e_calendar_view_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
{
    ECalendarView *cal_view;

    cal_view = E_CALENDAR_VIEW (object);

    switch (property_id) {
    case PROP_MODEL:
        e_calendar_view_set_model (cal_view, E_CAL_MODEL (g_value_get_object (value)));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        break;
    }
}

static void
e_calendar_view_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
{
    ECalendarView *cal_view;

    cal_view = E_CALENDAR_VIEW (object);

    switch (property_id) {
    case PROP_MODEL:
        g_value_set_object (value, e_calendar_view_get_model (cal_view));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        break;
    }
}

static void
e_calendar_view_class_init (ECalendarViewClass *klass)
{
    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
    GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);

    GtkBindingSet *binding_set;

    /* Method override */
    gobject_class->set_property = e_calendar_view_set_property;
    gobject_class->get_property = e_calendar_view_get_property;
    object_class->destroy = e_calendar_view_destroy;

    klass->selection_changed = NULL;
    klass->selected_time_changed = NULL;
    klass->event_changed = NULL;
    klass->event_added = NULL;
    klass->user_created = NULL;

    klass->get_selected_events = NULL;
    klass->get_selected_time_range = NULL;
    klass->set_selected_time_range = NULL;
    klass->get_visible_time_range = NULL;
    klass->update_query = NULL;
    klass->open_event = e_calendar_view_open_event;
    klass->paste_text = NULL;

    g_object_class_install_property (gobject_class, PROP_MODEL,
                     g_param_spec_object ("model", NULL, NULL, E_TYPE_CAL_MODEL,
                                  G_PARAM_READABLE | G_PARAM_WRITABLE));

    /* Create class' signals */
    e_calendar_view_signals[SELECTION_CHANGED] =
        g_signal_new ("selection_changed",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECalendarViewClass, selection_changed),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);
    e_calendar_view_signals[SELECTED_TIME_CHANGED] =
        g_signal_new ("selected_time_changed",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECalendarViewClass, selected_time_changed),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);
    e_calendar_view_signals[TIMEZONE_CHANGED] =
        g_signal_new ("timezone_changed",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECalendarViewClass, timezone_changed),
                  NULL, NULL,
                  e_marshal_VOID__POINTER_POINTER,
                  G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER);

    e_calendar_view_signals[EVENT_CHANGED] =
        g_signal_new ("event_changed",
                  G_TYPE_FROM_CLASS (object_class),
                  G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
                  G_STRUCT_OFFSET (ECalendarViewClass, event_changed),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__POINTER,
                  G_TYPE_NONE, 1,
                  G_TYPE_POINTER);

    e_calendar_view_signals[EVENT_ADDED] =
        g_signal_new ("event_added",
                  G_TYPE_FROM_CLASS (object_class),
                  G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
                  G_STRUCT_OFFSET (ECalendarViewClass, event_added),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__POINTER,
                  G_TYPE_NONE, 1,
                  G_TYPE_POINTER);

    e_calendar_view_signals[USER_CREATED] =
        g_signal_new ("user_created",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ECalendarViewClass, user_created),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);

    e_calendar_view_signals[OPEN_EVENT] =
        g_signal_new ("open_event",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
                  G_STRUCT_OFFSET (ECalendarViewClass, open_event),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);

        /*
         * Key bindings
         */

    binding_set = gtk_binding_set_by_class (klass);

    gtk_binding_entry_add_signal (binding_set, GDK_o,
                                      GDK_CONTROL_MASK,
                                      "open_event", 0);

    /* init the accessibility support for e_day_view */
    e_cal_view_a11y_init ();
}


void
e_calendar_view_add_event (ECalendarView *cal_view, ECal *client, time_t dtstart,
              icaltimezone *default_zone, icalcomponent *icalcomp, gboolean in_top_canvas)
{
    ECalComponent *comp;
    struct icaltimetype itime, old_dtstart, old_dtend;
    time_t tt_start, tt_end, new_dtstart = 0;
    struct icaldurationtype ic_dur, ic_oneday;
    gchar *uid;
    gint start_offset, end_offset;
    gboolean all_day_event = FALSE;
    GnomeCalendarViewType view_type;
    GError *error = NULL;

    start_offset = 0;
    end_offset = 0;

    old_dtstart = icalcomponent_get_dtstart (icalcomp);
    tt_start = icaltime_as_timet (old_dtstart);
    old_dtend = icalcomponent_get_dtend (icalcomp);
    tt_end = icaltime_as_timet (old_dtend);
    ic_dur = icaldurationtype_from_int (tt_end - tt_start);

    if (icaldurationtype_as_int (ic_dur) > 60*60*24) {
        /* This is a long event */
        start_offset = old_dtstart.hour * 60 + old_dtstart.minute;
        end_offset = old_dtstart.hour * 60 + old_dtend.minute;
    }

    ic_oneday = icaldurationtype_null_duration ();
    ic_oneday.days = 1;

    view_type = gnome_calendar_get_view (cal_view->priv->calendar);

    switch (view_type) {
    case GNOME_CAL_DAY_VIEW:
    case GNOME_CAL_WORK_WEEK_VIEW:
        if (start_offset == 0 && end_offset == 0 && in_top_canvas)
            all_day_event = TRUE;

        if (all_day_event) {
            ic_dur = ic_oneday;
        } else if (icaldurationtype_as_int (ic_dur) >= 60*60*24
                && !in_top_canvas) {
            /* copy & paste from top canvas to main canvas */
            gint time_divisions;

            time_divisions = calendar_config_get_time_divisions ();
            ic_dur = icaldurationtype_from_int (time_divisions * 60);
        }

        if (in_top_canvas)
            new_dtstart = dtstart + start_offset * 60;
        else
            new_dtstart = dtstart;
        break;
    case GNOME_CAL_WEEK_VIEW:
    case GNOME_CAL_MONTH_VIEW:
    case GNOME_CAL_LIST_VIEW:
        if (old_dtstart.is_date && old_dtend.is_date
            && memcmp (&ic_dur, &ic_oneday, sizeof(ic_dur)) == 0)
            all_day_event = TRUE;
        else {
            icaltimetype new_time = icaltime_from_timet_with_zone (dtstart, FALSE, default_zone);

            new_time.hour = old_dtstart.hour;
            new_time.minute = old_dtstart.minute;
            new_time.second = old_dtstart.second;

            new_dtstart = icaltime_as_timet_with_zone (new_time, old_dtstart.zone ? old_dtstart.zone : default_zone);
        }
        break;
    default:
        g_return_if_reached ();
    }

    itime = icaltime_from_timet_with_zone (new_dtstart, FALSE, old_dtstart.zone ? old_dtstart.zone : default_zone);
    /* set the timezone properly */
    itime.zone = old_dtstart.zone ? old_dtstart.zone : default_zone;
    if (all_day_event)
        itime.is_date = TRUE;
    icalcomponent_set_dtstart (icalcomp, itime);

    itime.is_date = FALSE;
    itime = icaltime_add (itime, ic_dur);
    if (all_day_event)
        itime.is_date = TRUE;
    icalcomponent_set_dtend (icalcomp, itime);

    /* FIXME The new uid stuff can go away once we actually set it in the backend */
    uid = e_cal_component_gen_uid ();
    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (
        comp, icalcomponent_new_clone (icalcomp));
    e_cal_component_set_uid (comp, uid);
    g_free (uid);

    e_cal_component_commit_sequence (comp);

    uid = NULL;
    if (e_cal_create_object (client, e_cal_component_get_icalcomponent (comp), &uid, &error)) {
        gboolean strip_alarms = TRUE;

        if (uid) {
            e_cal_component_set_uid (comp, uid);
            g_free (uid);
        }

        if ((itip_organizer_is_user (comp, client) || itip_sentby_is_user (comp, client)) &&
            send_component_dialog ((GtkWindow *) gtk_widget_get_toplevel (GTK_WIDGET (cal_view)),
                       client, comp, TRUE, &strip_alarms)) {
            itip_send_comp (E_CAL_COMPONENT_METHOD_REQUEST, comp,
                client, NULL, NULL, NULL, strip_alarms);
        }
    } else {
        g_message (G_STRLOC ": Could not create the object! %s", error ? error->message : "");
        if (error)
            g_error_free (error);
    }

    g_object_unref (comp);
}

static void
e_calendar_view_init (ECalendarView *cal_view)
{
    cal_view->priv = g_new0 (ECalendarViewPrivate, 1);
}

static void
e_calendar_view_destroy (GtkObject *object)
{
    ECalendarView *cal_view = (ECalendarView *) object;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    if (cal_view->priv) {
        if (cal_view->priv->model) {
            g_signal_handlers_disconnect_matched (cal_view->priv->model,
                                  G_SIGNAL_MATCH_DATA,
                                  0, 0, NULL, NULL, cal_view);
            g_object_unref (cal_view->priv->model);
            cal_view->priv->model = NULL;
        }

        if (cal_view->priv->default_category) {
            g_free (cal_view->priv->default_category);
            cal_view->priv->default_category = NULL;
        }

        g_free (cal_view->priv);
        cal_view->priv = NULL;
    }

    if (GTK_OBJECT_CLASS (e_calendar_view_parent_class)->destroy)
        GTK_OBJECT_CLASS (e_calendar_view_parent_class)->destroy (object);
}

GnomeCalendar *
e_calendar_view_get_calendar (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);

    return cal_view->priv->calendar;
}

void
e_calendar_view_set_calendar (ECalendarView *cal_view, GnomeCalendar *calendar)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    cal_view->priv->calendar = calendar;
}

ECalModel *
e_calendar_view_get_model (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);

    return cal_view->priv->model;
}

void
e_calendar_view_set_model (ECalendarView *cal_view, ECalModel *model)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));
    g_return_if_fail (E_IS_CAL_MODEL (model));

    if (cal_view->priv->model) {
        g_signal_handlers_disconnect_matched (cal_view->priv->model, G_SIGNAL_MATCH_DATA,
                              0, 0, NULL, NULL, cal_view);
        g_object_unref (cal_view->priv->model);
    }

    cal_view->priv->model = g_object_ref (model);
}

icaltimezone *
e_calendar_view_get_timezone (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);
    return e_cal_model_get_timezone (cal_view->priv->model);
}

void
e_calendar_view_set_timezone (ECalendarView *cal_view, icaltimezone *zone)
{
    icaltimezone *old_zone;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    old_zone = e_cal_model_get_timezone (cal_view->priv->model);
    if (old_zone == zone)
        return;

    e_cal_model_set_timezone (cal_view->priv->model, zone);
    g_signal_emit (G_OBJECT (cal_view), e_calendar_view_signals[TIMEZONE_CHANGED], 0,
               old_zone, zone);
}

const gchar *
e_calendar_view_get_default_category (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);
    return (const gchar *) cal_view->priv->default_category;
}

/**
 * e_calendar_view_set_default_category
 * @cal_view: A calendar view.
 * @category: Default category name or NULL for no category.
 *
 * Sets the default category that will be used when creating new calendar
 * components from the given calendar view.
 */
void
e_calendar_view_set_default_category (ECalendarView *cal_view, const gchar *category)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    if (cal_view->priv->default_category)
        g_free (cal_view->priv->default_category);

    cal_view->priv->default_category = g_strdup (category);
}

/**
 * e_calendar_view_get_use_24_hour_format:
 * @cal_view: A calendar view.
 *
 * Gets whether the view is using 24 hour times or not.
 *
 * Returns: the 24 hour setting.
 */
gboolean
e_calendar_view_get_use_24_hour_format (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), FALSE);

    return e_cal_model_get_use_24_hour_format (cal_view->priv->model);
}

/**
 * e_calendar_view_set_use_24_hour_format
 * @cal_view: A calendar view.
 * @use_24_hour: Whether to use 24 hour times or not.
 *
 * Sets the 12/24 hour times setting for the given view.
 */
void
e_calendar_view_set_use_24_hour_format (ECalendarView *cal_view, gboolean use_24_hour)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    e_cal_model_set_use_24_hour_format (cal_view->priv->model, use_24_hour);
}

void
e_calendar_view_set_activity_handler (ECalendarView *cal_view, EActivityHandler *activity_handler)
{
    ECalendarViewPrivate *priv;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    priv = cal_view->priv;

    priv->activity_handler = activity_handler;
}

void
e_calendar_view_set_status_message (ECalendarView *cal_view, const gchar *message, gint percent)
{
    ECalendarViewPrivate *priv;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    priv = cal_view->priv;

    if (!priv->activity_handler)
        return;

    if (!message || !*message) {
        if (priv->activity_id != 0) {
            e_activity_handler_operation_finished (priv->activity_handler, priv->activity_id);
            priv->activity_id = 0;
        }
    } else if (priv->activity_id == 0) {
        gchar *client_id = g_strdup_printf ("%p", (gpointer) cal_view);

        priv->activity_id = e_activity_handler_operation_started (
            priv->activity_handler, client_id, message, TRUE);

        g_free (client_id);
    } else {
        double progress;

        if (percent < 0)
            progress = -1.0;
        else {
            progress = ((double) percent / 100);
        }

        e_activity_handler_operation_progressing (priv->activity_handler, priv->activity_id, message, progress);
    }
}

GList *
e_calendar_view_get_selected_events (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);

    if (E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->get_selected_events)
        return E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->get_selected_events (cal_view);

    return NULL;
}

gboolean
e_calendar_view_get_selected_time_range (ECalendarView *cal_view, time_t *start_time, time_t *end_time)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), FALSE);

    if (E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->get_selected_time_range) {
        return E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->get_selected_time_range (
            cal_view, start_time, end_time);
    }

    return FALSE;
}

void
e_calendar_view_set_selected_time_range (ECalendarView *cal_view, time_t start_time, time_t end_time)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    if (E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->set_selected_time_range) {
        E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->set_selected_time_range (
            cal_view, start_time, end_time);
    }
}

gboolean
e_calendar_view_get_visible_time_range (ECalendarView *cal_view, time_t *start_time, time_t *end_time)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), FALSE);

    if (E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->get_visible_time_range) {
        return E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->get_visible_time_range (
            cal_view, start_time, end_time);
    }

    return FALSE;
}

void
e_calendar_view_update_query (ECalendarView *cal_view)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    if (E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->update_query) {
        E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->update_query (cal_view);
    }
}

void
e_calendar_view_cut_clipboard (ECalendarView *cal_view)
{
    GList *selected, *l;
    const gchar *uid;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    e_calendar_view_set_status_message (cal_view, _("Deleting selected objects"), -1);

    e_calendar_view_copy_clipboard (cal_view);
    for (l = selected; l != NULL; l = l->next) {
        ECalComponent *comp;
        ECalendarViewEvent *event = (ECalendarViewEvent *) l->data;
        GError *error = NULL;

        if (!event)
            continue;

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));

        if ((itip_organizer_is_user (comp, event->comp_data->client) || itip_sentby_is_user (comp, event->comp_data->client))
            && cancel_component_dialog ((GtkWindow *) gtk_widget_get_toplevel (GTK_WIDGET (cal_view)),
                        event->comp_data->client, comp, TRUE))
            itip_send_comp (E_CAL_COMPONENT_METHOD_CANCEL, comp,
                    event->comp_data->client, NULL, NULL, NULL, TRUE);

        e_cal_component_get_uid (comp, &uid);
        if (e_cal_component_is_instance (comp)) {
            gchar *rid = NULL;
            icalcomponent *icalcomp;

            /* when cutting detached instances, only cut that instance */
            rid = e_cal_component_get_recurid_as_string (comp);
            if (e_cal_get_object (event->comp_data->client, uid, rid, &icalcomp, NULL)) {
                e_cal_remove_object_with_mod (event->comp_data->client, uid,
                                  rid, CALOBJ_MOD_THIS,
                                  &error);
                icalcomponent_free (icalcomp);
            } else
                e_cal_remove_object_with_mod (event->comp_data->client, uid, NULL,
                        CALOBJ_MOD_ALL, &error);
            g_free (rid);
        } else
            e_cal_remove_object (event->comp_data->client, uid, &error);
        delete_error_dialog (error, E_CAL_COMPONENT_EVENT);

        g_clear_error (&error);

        g_object_unref (comp);
    }

    e_calendar_view_set_status_message (cal_view, NULL, -1);

    g_list_free (selected);
}

static void
clipboard_clear_calendar_cb (GtkClipboard *clipboard,
                 gpointer data)
{
    g_free (data);
}

static void
clipboard_get_calendar_cb (GtkClipboard *clipboard,
               GtkSelectionData *selection_data,
               guint info,
               gpointer data)
{
    gchar *comp_str = (gchar *) data;

    switch (info) {
    case TARGET_TYPE_VCALENDAR:
        gtk_selection_data_set (selection_data,
                    selection_data->target,
                    8,
                    (const guchar *) comp_str,
                    (gint) strlen (comp_str));
        break;
    default:
        break;
    }
}

static void
add_related_timezones (icalcomponent *des_icalcomp, icalcomponent *src_icalcomp, ECal *client)
{
    icalproperty_kind look_in[] = {
        ICAL_DTSTART_PROPERTY,
        ICAL_DTEND_PROPERTY,
        ICAL_NO_PROPERTY
    };
    gint i;

    g_return_if_fail (des_icalcomp != NULL);
    g_return_if_fail (src_icalcomp != NULL);
    g_return_if_fail (client != NULL);

    for (i = 0; look_in[i] != ICAL_NO_PROPERTY; i++) {
        icalproperty *prop = icalcomponent_get_first_property (src_icalcomp, look_in[i]);

        if (prop) {
            icalparameter *par = icalproperty_get_first_parameter (prop, ICAL_TZID_PARAMETER);

            if (par) {
                const gchar *tzid = icalparameter_get_tzid (par);

                if (tzid) {
                    GError *error = NULL;
                    icaltimezone *zone = NULL;

                    if (!e_cal_get_timezone (client, tzid, &zone, &error)) {
                        g_warning ("%s: Cannot get timezone for '%s'. %s", G_STRFUNC, tzid, error ? error->message : "");
                        if (error)
                            g_error_free (error);
                    } else if (zone &&
                        icalcomponent_get_timezone (des_icalcomp, icaltimezone_get_tzid (zone)) == NULL) {
                        /* do not duplicate timezones in the component */
                        icalcomponent *vtz_comp;

                        vtz_comp = icaltimezone_get_component (zone);
                        if (vtz_comp)
                            icalcomponent_add_component (des_icalcomp, icalcomponent_new_clone (vtz_comp));
                    }
                }
            }
        }
    }
}

void
e_calendar_view_copy_clipboard (ECalendarView *cal_view)
{
    GList *selected, *l;
    gchar *comp_str;
    icalcomponent *vcal_comp;
    icalcomponent *new_icalcomp;
    ECalendarViewEvent *event;
    GtkClipboard *clipboard;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    /* create top-level VCALENDAR component and add VTIMEZONE's */
    vcal_comp = e_cal_util_new_top_level ();
    for (l = selected; l != NULL; l = l->next) {
        event = (ECalendarViewEvent *) l->data;

        if (event) {
            e_cal_util_add_timezones_from_component (vcal_comp, event->comp_data->icalcomp);

            add_related_timezones (vcal_comp, event->comp_data->icalcomp, event->comp_data->client);
        }
    }

    for (l = selected; l != NULL; l = l->next) {
        event = (ECalendarViewEvent *) l->data;

        new_icalcomp = icalcomponent_new_clone (event->comp_data->icalcomp);

        /* remove RECURRENCE-IDs from copied objects */
        if (e_cal_util_component_is_instance (new_icalcomp)) {
            icalproperty *prop;

            prop = icalcomponent_get_first_property (new_icalcomp, ICAL_RECURRENCEID_PROPERTY);
            if (prop)
                icalcomponent_remove_property (new_icalcomp, prop);
        }
        icalcomponent_add_component (vcal_comp, new_icalcomp);
    }

    /* copy the VCALENDAR to the clipboard */
    clipboard = gtk_widget_get_clipboard (GTK_WIDGET (cal_view), GDK_SELECTION_CLIPBOARD);
    comp_str = icalcomponent_as_ical_string_r (vcal_comp);

    if (!gtk_clipboard_set_with_data (clipboard, target_types, n_target_types,
                      clipboard_get_calendar_cb,
                      clipboard_clear_calendar_cb,
                      comp_str)) {
        g_free (comp_str);
    } else {
        gtk_clipboard_set_can_store (clipboard, target_types + 1, n_target_types - 1);
    }

    /* free memory */
    icalcomponent_free (vcal_comp);
    g_list_free (selected);
}

static void
clipboard_get_calendar_data (ECalendarView *cal_view, const gchar *text)
{
    icalcomponent *icalcomp;
    icalcomponent_kind kind;
    time_t selected_time_start, selected_time_end;
    icaltimezone *default_zone;
    ECal *client;
    gboolean in_top_canvas;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    if (!text || !*text)
        return;

    icalcomp = icalparser_parse_string ((const gchar *) text);
    if (!icalcomp)
        return;

    default_zone = calendar_config_get_icaltimezone ();
    client = e_cal_model_get_default_client (cal_view->priv->model);

    /* check the type of the component */
    /* FIXME An error dialog if we return? */
    kind = icalcomponent_isa (icalcomp);
    if (kind != ICAL_VCALENDAR_COMPONENT && kind != ICAL_VEVENT_COMPONENT)
        return;

    e_calendar_view_set_status_message (cal_view, _("Updating objects"), -1);
    e_calendar_view_get_selected_time_range (cal_view, &selected_time_start, &selected_time_end);

    if ((selected_time_end - selected_time_start) == 60 * 60 * 24)
        in_top_canvas = TRUE;
    else
        in_top_canvas = FALSE;

    if (kind == ICAL_VCALENDAR_COMPONENT) {
        icalcomponent *subcomp;

        /* add timezones first, to have them ready */
        for (subcomp = icalcomponent_get_first_component (icalcomp, ICAL_VTIMEZONE_COMPONENT);
             subcomp;
             subcomp = icalcomponent_get_next_component (icalcomp, ICAL_VTIMEZONE_COMPONENT)) {
            icaltimezone *zone;
            GError *error = NULL;

            zone = icaltimezone_new ();
            icaltimezone_set_component (zone, subcomp);
            if (!e_cal_add_timezone (client, zone, &error)) {
                icalproperty *tzidprop = icalcomponent_get_first_property (subcomp, ICAL_TZID_PROPERTY);

                g_warning ("%s: Add zone '%s' failed. %s", G_STRFUNC, tzidprop ? icalproperty_get_tzid (tzidprop) : "???", error ? error->message : "");
                if (error)
                    g_error_free (error);
            }

            icaltimezone_free (zone, 1);
        }

        for (subcomp = icalcomponent_get_first_component (icalcomp, ICAL_VEVENT_COMPONENT);
             subcomp;
             subcomp = icalcomponent_get_next_component (icalcomp, ICAL_VEVENT_COMPONENT)) {
            if (e_cal_util_component_has_recurrences (subcomp)) {
                icalproperty *icalprop = icalcomponent_get_first_property (subcomp, ICAL_RRULE_PROPERTY);
                if (icalprop)
                    icalproperty_remove_parameter_by_name (icalprop, "X-EVOLUTION-ENDDATE");
            }

            e_calendar_view_add_event (cal_view, client, selected_time_start, default_zone, subcomp, in_top_canvas);
        }

        icalcomponent_free (icalcomp);
    } else {
        e_calendar_view_add_event (cal_view, client, selected_time_start, default_zone, icalcomp, in_top_canvas);
    }

    e_calendar_view_set_status_message (cal_view, NULL, -1);
}

static void
e_calendar_view_paste_text (ECalendarView *cal_view)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    if (E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->paste_text)
        E_CALENDAR_VIEW_CLASS (G_OBJECT_GET_CLASS (cal_view))->paste_text (cal_view);
}

static void
clipboard_paste_received_cb (GtkClipboard *clipboard,
                 GtkSelectionData *selection_data,
                 gpointer data)
{
    if (gtk_clipboard_wait_is_text_available (clipboard)) {
        e_calendar_view_paste_text (E_CALENDAR_VIEW (data));
    } else {
        GdkAtom type = selection_data->type;
        if (type == gdk_atom_intern (target_types[TARGET_TYPE_VCALENDAR].target, TRUE)) {
            gchar *result = NULL;
            result = g_strndup ((const gchar *) selection_data->data,
                        selection_data->length);
            clipboard_get_calendar_data (E_CALENDAR_VIEW (data), result);
            g_free (result);
        }
    }
    g_object_unref (data);
}

void
e_calendar_view_paste_clipboard (ECalendarView *cal_view)
{
    GtkClipboard *clipboard;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    clipboard = gtk_widget_get_clipboard (GTK_WIDGET (cal_view), GDK_SELECTION_CLIPBOARD);
    g_object_ref (cal_view);

    gtk_clipboard_request_contents (clipboard,
                    gdk_atom_intern (target_types[TARGET_TYPE_VCALENDAR].target, FALSE),
                    clipboard_paste_received_cb, cal_view);
}

static void
add_retract_data (ECalComponent *comp, const gchar *retract_comment, CalObjModType mod)
{
    icalcomponent *icalcomp = NULL;
    icalproperty *icalprop = NULL;

    icalcomp = e_cal_component_get_icalcomponent (comp);
    if (retract_comment && *retract_comment)
        icalprop = icalproperty_new_x (retract_comment);
    else
        icalprop = icalproperty_new_x ("0");
    icalproperty_set_x_name (icalprop, "X-EVOLUTION-RETRACT-COMMENT");
    icalcomponent_add_property (icalcomp, icalprop);

    if (mod == CALOBJ_MOD_ALL)
        icalprop = icalproperty_new_x ("All");
    else
        icalprop = icalproperty_new_x ("This");
    icalproperty_set_x_name (icalprop, "X-EVOLUTION-RECUR-MOD");
    icalcomponent_add_property (icalcomp, icalprop);
}

static gboolean
check_for_retract (ECalComponent *comp, ECal *client)
{
    ECalComponentOrganizer org;
    gchar *email = NULL;
    const gchar *strip = NULL;
    gboolean ret_val = FALSE;

    if (!(e_cal_component_has_attendees (comp) &&
                e_cal_get_save_schedules (client)))
        return ret_val;

    e_cal_component_get_organizer (comp, &org);
    strip = itip_strip_mailto (org.value);

    if (e_cal_get_cal_address (client, &email, NULL) && !g_ascii_strcasecmp (email, strip)) {
        ret_val = TRUE;
    }

    g_free (email);
    return ret_val;
}

static void
delete_event (ECalendarView *cal_view, ECalendarViewEvent *event)
{
    ECalComponent *comp;
    ECalComponentVType vtype;
    gboolean  delete = FALSE;
    GError *error = NULL;

    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
    vtype = e_cal_component_get_vtype (comp);

    /*FIXME remove it once the we dont set the recurrence id for all the generated instances */
    if (!e_cal_get_static_capability (event->comp_data->client, CAL_STATIC_CAPABILITY_RECURRENCES_NO_MASTER))
        e_cal_component_set_recurid (comp, NULL);

    /*FIXME Retract should be moved to Groupwise features plugin */
    if (check_for_retract (comp, event->comp_data->client)) {
        gchar *retract_comment = NULL;
        gboolean retract = FALSE;

        delete = prompt_retract_dialog (comp, &retract_comment, GTK_WIDGET (cal_view), &retract);
        if (retract) {
            GList *users = NULL;
            icalcomponent *icalcomp = NULL, *mod_comp = NULL;

            add_retract_data (comp, retract_comment, CALOBJ_MOD_ALL);
            icalcomp = e_cal_component_get_icalcomponent (comp);
            icalcomponent_set_method (icalcomp, ICAL_METHOD_CANCEL);
            if (!e_cal_send_objects (event->comp_data->client, icalcomp, &users,
                        &mod_comp, &error)) {
                delete_error_dialog (error, E_CAL_COMPONENT_EVENT);
                g_clear_error (&error);
                error = NULL;
            } else {

                if (mod_comp)
                    icalcomponent_free (mod_comp);

                if (users) {
                    g_list_foreach (users, (GFunc) g_free, NULL);
                    g_list_free (users);
                }
            }
        }
    } else
        delete = delete_component_dialog (comp, FALSE, 1, vtype, GTK_WIDGET (cal_view));

    if (delete) {
        const gchar *uid;
        gchar *rid = NULL;

        if ((itip_organizer_is_user (comp, event->comp_data->client) || itip_sentby_is_user (comp, event->comp_data->client))
            && cancel_component_dialog ((GtkWindow *) gtk_widget_get_toplevel (GTK_WIDGET (cal_view)),
                        event->comp_data->client,
                        comp, TRUE))
            itip_send_comp (E_CAL_COMPONENT_METHOD_CANCEL, comp,
                    event->comp_data->client, NULL, NULL, NULL, TRUE);

        e_cal_component_get_uid (comp, &uid);
        if (!uid || !*uid) {
            g_object_unref (comp);
            return;
        }
        rid = e_cal_component_get_recurid_as_string (comp);
        if (e_cal_util_component_is_instance (event->comp_data->icalcomp) || e_cal_util_component_has_recurrences (event->comp_data->icalcomp))
            e_cal_remove_object_with_mod (event->comp_data->client, uid,
                rid, CALOBJ_MOD_ALL, &error);
        else
            e_cal_remove_object (event->comp_data->client, uid, &error);

        delete_error_dialog (error, E_CAL_COMPONENT_EVENT);
        g_clear_error (&error);
        g_free (rid);
    }

    g_object_unref (comp);
}

void
e_calendar_view_delete_selected_event (ECalendarView *cal_view)
{
    GList *selected;
    ECalendarViewEvent *event;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    event = (ECalendarViewEvent *) selected->data;
    if (event)
        delete_event (cal_view, event);

    g_list_free (selected);
}

void
e_calendar_view_delete_selected_events (ECalendarView *cal_view)
{
    GList *selected, *l;
    ECalendarViewEvent *event;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    for (l = selected; l != NULL; l = l->next) {
        event = (ECalendarViewEvent *) l->data;
        if (event)
            delete_event (cal_view, event);
    }

    g_list_free (selected);
}

void
e_calendar_view_delete_selected_occurrence (ECalendarView *cal_view)
{
    GList *selected;
    ECalComponent *comp;
    ECalendarViewEvent *event;
    ECalComponentVType vtype;
    gboolean  delete = FALSE;
    GError *error = NULL;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;
    event = (ECalendarViewEvent *) selected->data;
    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
    vtype = e_cal_component_get_vtype (comp);

    /*FIXME Retract should be moved to Groupwise features plugin */
    if (check_for_retract (comp, event->comp_data->client)) {
        gchar *retract_comment = NULL;
        gboolean retract = FALSE;

        delete = prompt_retract_dialog (comp, &retract_comment, GTK_WIDGET (cal_view), &retract);
        if (retract) {
            GList *users = NULL;
            icalcomponent *icalcomp = NULL, *mod_comp = NULL;

            add_retract_data (comp, retract_comment, CALOBJ_MOD_THIS);
            icalcomp = e_cal_component_get_icalcomponent (comp);
            icalcomponent_set_method (icalcomp, ICAL_METHOD_CANCEL);
            if (!e_cal_send_objects (event->comp_data->client, icalcomp, &users,
                        &mod_comp, &error)) {
                delete_error_dialog (error, E_CAL_COMPONENT_EVENT);
                g_clear_error (&error);
                error = NULL;
            } else {
                if (mod_comp)
                    icalcomponent_free (mod_comp);
                if (users) {
                    g_list_foreach (users, (GFunc) g_free, NULL);
                    g_list_free (users);
                }
            }
        }
    } else
        delete = delete_component_dialog (comp, FALSE, 1, vtype, GTK_WIDGET (cal_view));

    if (delete) {
        const gchar *uid;
        gchar *rid = NULL;
        ECalComponentDateTime dt;
        icaltimezone *zone = NULL;
        gboolean is_instance = FALSE;

        e_cal_component_get_uid (comp, &uid);
        e_cal_component_get_dtstart (comp, &dt);
        is_instance = e_cal_component_is_instance (comp);

        if (dt.tzid) {
            GError *error = NULL;

            e_cal_get_timezone (event->comp_data->client, dt.tzid, &zone, &error);
            if (error) {
                zone = e_calendar_view_get_timezone (cal_view);
                g_clear_error(&error);
            }
        } else
            zone = e_calendar_view_get_timezone (cal_view);


        if (is_instance)
            rid = e_cal_component_get_recurid_as_string (comp);

        e_cal_component_free_datetime (&dt);


        if ((itip_organizer_is_user (comp, event->comp_data->client) || itip_sentby_is_user (comp, event->comp_data->client))
                && cancel_component_dialog ((GtkWindow *) gtk_widget_get_toplevel (GTK_WIDGET (cal_view)),
                    event->comp_data->client,
                    comp, TRUE) && !e_cal_get_save_schedules (event->comp_data->client)) {
            if (!e_cal_component_is_instance (comp)) {
                ECalComponentRange range;

                /* set the recurrence ID of the object we send */
                range.type = E_CAL_COMPONENT_RANGE_SINGLE;
                e_cal_component_get_dtstart (comp, &range.datetime);
                range.datetime.value->is_date = 1;
                e_cal_component_set_recurid (comp, &range);

                e_cal_component_free_datetime (&range.datetime);
            }
            itip_send_comp (E_CAL_COMPONENT_METHOD_CANCEL, comp, event->comp_data->client, NULL, NULL, NULL, TRUE);
        }

        if (is_instance)
            e_cal_remove_object_with_mod (event->comp_data->client, uid, rid, CALOBJ_MOD_THIS, &error);
        else {
            struct icaltimetype instance_rid;

            instance_rid = icaltime_from_timet_with_zone (event->comp_data->instance_start,
                    TRUE, zone ? zone : icaltimezone_get_utc_timezone ());
            e_cal_util_remove_instances (event->comp_data->icalcomp, instance_rid, CALOBJ_MOD_THIS);
            e_cal_modify_object (event->comp_data->client, event->comp_data->icalcomp, CALOBJ_MOD_THIS,
                    &error);
        }

        delete_error_dialog (error, E_CAL_COMPONENT_EVENT);
        g_clear_error (&error);
        g_free (rid);
    }

    /* free memory */
    g_list_free (selected);
    g_object_unref (comp);
}

static void
on_new_appointment (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_new_appointment (cal_view);
}

static void
on_new_event (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_new_appointment_full (cal_view, TRUE, FALSE, FALSE);
}

static void
on_new_meeting (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_new_appointment_full (cal_view, FALSE, TRUE, FALSE);
}

static void
on_new_task (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    time_t dtstart, dtend;

    e_calendar_view_get_selected_time_range (cal_view, &dtstart, &dtend);
    gnome_calendar_new_task (cal_view->priv->calendar, &dtstart, &dtend);
}

static void
on_goto_date (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    goto_dialog (cal_view->priv->calendar);
}

static void
on_goto_today (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    calendar_goto_today (cal_view->priv->calendar);
}

static void
on_edit_appointment (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;

        if (event)
            e_calendar_view_edit_appointment (cal_view, event->comp_data->client,
                             event->comp_data->icalcomp,
                             icalcomponent_get_first_property(event->comp_data->icalcomp, ICAL_ATTENDEE_PROPERTY) != NULL);

        g_list_free (selected);
    }
}

static void
on_print (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    calendar_command_print (cal_view->priv->calendar, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG);
}

static void
on_save_as (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;
    gchar *filename;
    gchar *ical_string;
    ECalendarViewEvent *event;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    filename = e_file_dialog_save (_("Save as..."), NULL);
    if (filename == NULL)
        return;

    event = (ECalendarViewEvent *) selected->data;
    ical_string = e_cal_get_component_as_string (event->comp_data->client, event->comp_data->icalcomp);
    if (ical_string == NULL) {
        g_warning ("Couldn't convert item to a string");
        return;
    }

    e_write_file_uri (filename, ical_string);
    g_free (ical_string);

    g_list_free (selected);
}

static void
on_print_event (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;
    ECalendarViewEvent *event;
    ECalComponent *comp;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    event = (ECalendarViewEvent *) selected->data;

    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
    print_comp (comp, event->comp_data->client, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG);

    g_object_unref (comp);
    g_list_free (selected);
}

static void
transfer_item_to (ECalendarViewEvent *event, ECal *dest_client, gboolean remove_item)
{
    const gchar *uid;
    gchar *new_uid;
    icalcomponent *orig_icalcomp;
    icalproperty *icalprop;

    uid = icalcomponent_get_uid (event->comp_data->icalcomp);

    /* put the new object into the destination calendar */
    if (e_cal_get_object (dest_client, uid, NULL, &orig_icalcomp, NULL)) {
        icalcomponent_free (orig_icalcomp);


        if (!e_cal_modify_object (dest_client, event->comp_data->icalcomp, CALOBJ_MOD_ALL, NULL))
            return;
    } else {
        if (e_cal_util_component_is_instance (event->comp_data->icalcomp)) {
            icalcomponent *icalcomp = NULL;

            if (e_cal_get_object (event->comp_data->client, uid, NULL, &icalcomp, NULL)) {
                /* use master object when working with recurring event */
                orig_icalcomp = icalcomponent_new_clone (icalcomp);
                icalcomponent_free (icalcomp);
            } else {
                /* ... or remove the recurrence id property... */
                orig_icalcomp = icalcomponent_new_clone (event->comp_data->icalcomp);

                if (e_cal_util_component_has_recurrences (orig_icalcomp)) {
                    /* ... for non-detached instances, to make it a master object */
                    icalproperty *prop;

                    prop = icalcomponent_get_first_property (orig_icalcomp, ICAL_RECURRENCEID_PROPERTY);
                    if (prop)
                        icalcomponent_remove_property (orig_icalcomp, prop);
                }
            }
        } else
            orig_icalcomp = icalcomponent_new_clone (event->comp_data->icalcomp);

        icalprop = icalproperty_new_x ("1");
        icalproperty_set_x_name (icalprop, "X-EVOLUTION-MOVE-CALENDAR");
        icalcomponent_add_property (orig_icalcomp, icalprop);

        if (!remove_item) {
            /* change the UID to avoid problems with duplicated UIDs */
            new_uid = e_cal_component_gen_uid ();
            icalcomponent_set_uid (orig_icalcomp, new_uid);

            g_free (new_uid);
        }

        new_uid = NULL;
        if (!e_cal_create_object (dest_client, orig_icalcomp, &new_uid, NULL)) {
            icalcomponent_free (orig_icalcomp);
            return;
        }

        if (new_uid)
            g_free (new_uid);
        icalcomponent_free (orig_icalcomp);
    }

    /* remove the item from the source calendar */
    if (remove_item) {
        if (e_cal_util_component_is_instance (event->comp_data->icalcomp) || e_cal_util_component_has_recurrences (event->comp_data->icalcomp)) {
            gchar *rid = NULL;
            struct icaltimetype recur_id = icalcomponent_get_recurrenceid (event->comp_data->icalcomp);

            if (!icaltime_is_null_time (recur_id))
                rid = icaltime_as_ical_string_r (recur_id);

            e_cal_remove_object_with_mod (event->comp_data->client, uid, rid, CALOBJ_MOD_ALL, NULL);
            g_free (rid);
        } else
            e_cal_remove_object (event->comp_data->client, uid, NULL);
    }
}

static void
transfer_selected_items (ECalendarView *cal_view, gboolean remove_item)
{
    GList *selected, *l;
    ESource *destination_source;
    ECal *dest_client;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    /* prompt the user for destination source */
    destination_source = select_source_dialog ((GtkWindow *) gtk_widget_get_toplevel ((GtkWidget *)cal_view), E_CAL_SOURCE_TYPE_EVENT);
    if (!destination_source)
        return;

    /* open the destination calendar */
    dest_client = auth_new_cal_from_source (destination_source, E_CAL_SOURCE_TYPE_EVENT);
    if (!dest_client || !e_cal_open (dest_client, FALSE, NULL)) {
        if (dest_client)
            g_object_unref (dest_client);
        g_object_unref (destination_source);
        return;
    }

    /* process all selected events */
    if (remove_item)
        e_calendar_view_set_status_message (cal_view, _("Moving items"), -1);
    else
        e_calendar_view_set_status_message (cal_view, _("Copying items"), -1);

    for (l = selected; l != NULL; l = l->next)
        transfer_item_to ((ECalendarViewEvent *) l->data, dest_client, remove_item);

    e_calendar_view_set_status_message (cal_view, NULL, -1);

    /* free memory */
    g_object_unref (destination_source);
    g_object_unref (dest_client);
    g_list_free (selected);
}

static void
on_copy_to (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    transfer_selected_items (cal_view, FALSE);
}

static void
on_move_to (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    transfer_selected_items (cal_view, TRUE);
}

static void
on_meeting (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;
        e_calendar_view_edit_appointment (cal_view, event->comp_data->client, event->comp_data->icalcomp, TRUE);

        g_list_free (selected);
    }
}

static void
set_attendee_status_for_delegate (icalcomponent *icalcomp, ECal *client)
{
    icalproperty *prop;
    icalparameter *param;
    gchar *address = NULL;
    ECalComponent *comp;
    gboolean found = FALSE;

    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (icalcomp));

    address = itip_get_comp_attendee (comp, client);


    for (prop = icalcomponent_get_first_property (icalcomp, ICAL_ATTENDEE_PROPERTY);
            prop;
            prop = icalcomponent_get_next_property (icalcomp, ICAL_ATTENDEE_PROPERTY)) {
        const gchar *attendee = icalproperty_get_attendee (prop);

        if (!g_ascii_strcasecmp (itip_strip_mailto (attendee), address)) {
            param = icalparameter_new_role (ICAL_ROLE_NONPARTICIPANT);
            icalproperty_set_parameter (prop, param);

            param = icalparameter_new_partstat (ICAL_PARTSTAT_DELEGATED);
            icalproperty_set_parameter (prop, param);

            found = TRUE;
            break;
        }

    }

    /* We couldn find the attendee in the component, so add a new attendee */
    if (!found) {
        gchar *temp = g_strdup_printf ("MAILTO:%s", address);

        prop = icalproperty_new_attendee ((const gchar *) temp);
        icalcomponent_add_property (icalcomp, prop);

        param = icalparameter_new_partstat (ICAL_PARTSTAT_DELEGATED);
        icalproperty_add_parameter (prop, param);

        param = icalparameter_new_role (ICAL_ROLE_NONPARTICIPANT);
        icalproperty_add_parameter (prop, param);

        param = icalparameter_new_cutype (ICAL_CUTYPE_INDIVIDUAL);
        icalproperty_add_parameter (prop, param);

        param = icalparameter_new_rsvp (ICAL_RSVP_TRUE);
        icalproperty_add_parameter (prop, param);

        g_free (temp);
    }


    g_free (address);
    g_object_unref (comp);
}

static void
on_delegate (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;
    guint32 flags = 0;
    icalcomponent *clone;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;

        clone = icalcomponent_new_clone (event->comp_data->icalcomp);
        set_attendee_status_for_delegate (clone, event->comp_data->client);

        flags |= COMP_EDITOR_MEETING | COMP_EDITOR_DELEGATE;

        e_calendar_view_open_event_with_flags (cal_view, event->comp_data->client, clone, flags);

        icalcomponent_free (clone);
        g_list_free (selected);
    }
}

static void
on_forward (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalComponent *comp;
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
        itip_send_comp (E_CAL_COMPONENT_METHOD_PUBLISH, comp, event->comp_data->client, NULL, NULL, NULL, TRUE);

        g_list_free (selected);
        g_object_unref (comp);
    }
}

static void
on_reply (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;
    gboolean reply_all = FALSE;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalComponent *comp;
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
        reply_to_calendar_comp (E_CAL_COMPONENT_METHOD_REPLY, comp, event->comp_data->client, reply_all, NULL, NULL);

        g_list_free (selected);
        g_object_unref (comp);
    }
}

static void
on_reply_all (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    GList *selected;
    gboolean reply_all = TRUE;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalComponent *comp;
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
        reply_to_calendar_comp (E_CAL_COMPONENT_METHOD_REPLY, comp, event->comp_data->client, reply_all, NULL, NULL);

        g_list_free (selected);
        g_object_unref (comp);
    }
}

static void
on_delete_appointment (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_delete_selected_event (cal_view);
}

static void
on_unrecur_appointment (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;
    ECalendarViewEvent *event;
    ECalComponent *comp, *new_comp;
    ECalComponentDateTime date;
    struct icaltimetype itt;
    GList *selected;
    ECal *client;
    gchar *new_uid;
    ECalComponentId *id = NULL;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (!selected)
        return;

    event = (ECalendarViewEvent *) selected->data;
    client = g_object_ref (event->comp_data->client);

    date.value = &itt;
    date.tzid = NULL;

    /* For the recurring object, we add an exception to get rid of the
       instance. */

    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (event->comp_data->icalcomp));
    id = e_cal_component_get_id (comp);


    /* For the unrecurred instance we duplicate the original object,
       create a new uid for it, get rid of the recurrence rules, and set
       the start & end times to the instances times. */
    new_comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (new_comp, icalcomponent_new_clone (event->comp_data->icalcomp));

    new_uid = e_cal_component_gen_uid ();
    e_cal_component_set_uid (new_comp, new_uid);
    g_free (new_uid);
    e_cal_component_set_recurid (new_comp, NULL);
    e_cal_component_set_rdate_list (new_comp, NULL);
    e_cal_component_set_rrule_list (new_comp, NULL);
    e_cal_component_set_exdate_list (new_comp, NULL);
    e_cal_component_set_exrule_list (new_comp, NULL);

    date.value = &itt;
    date.tzid = icaltimezone_get_tzid (e_calendar_view_get_timezone (cal_view));

    *date.value = icaltime_from_timet_with_zone (event->comp_data->instance_start, FALSE,
                             e_calendar_view_get_timezone (cal_view));
    cal_comp_set_dtstart_with_oldzone (client, new_comp, &date);
    *date.value = icaltime_from_timet_with_zone (event->comp_data->instance_end, FALSE,
                             e_calendar_view_get_timezone (cal_view));
    cal_comp_set_dtend_with_oldzone (client, new_comp, &date);
    e_cal_component_commit_sequence (new_comp);

    /* Now update both ECalComponents. Note that we do this last since at
     * present the updates happen synchronously so our event may disappear.
     */

    if (!e_cal_remove_object_with_mod (client, id->uid, id->rid, CALOBJ_MOD_THIS,
                NULL))
        g_message ("on_unrecur_appointment(): Could not remove the old object!");

    e_cal_component_free_id (id);
    g_object_unref (comp);

    if (!e_cal_create_object (client, e_cal_component_get_icalcomponent (new_comp), &new_uid, NULL))
        g_message ("on_unrecur_appointment(): Could not update the object!");
    else
        g_free (new_uid);

    g_object_unref (new_comp);
    g_object_unref (client);
    g_list_free (selected);
}

static void
on_delete_occurrence (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_delete_selected_occurrence (cal_view);
}

static void
on_cut (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_cut_clipboard (cal_view);
}

static void
on_copy (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_copy_clipboard (cal_view);
}

static void
on_paste (EPopup *ep, EPopupItem *pitem, gpointer data)
{
    ECalendarView *cal_view = data;

    e_calendar_view_paste_clipboard (cal_view);
}

static EPopupItem ecv_main_items [] = {
    { E_POPUP_ITEM, (gchar *) "00.new", (gchar *) N_("New _Appointment..."), on_new_appointment, NULL, (gchar *) "appointment-new", 0, 0 },
    { E_POPUP_ITEM, (gchar *) "10.newallday", (gchar *) N_("New All Day _Event"), on_new_event, NULL, (gchar *) "stock_new-24h-appointment", 0, 0},
    { E_POPUP_ITEM, (gchar *) "20.meeting", (gchar *) N_("New _Meeting"), on_new_meeting, NULL, (gchar *) "stock_new-meeting", 0, 0},
    { E_POPUP_ITEM, (gchar *) "30.task", (gchar *) N_("New _Task"), on_new_task, NULL, (gchar *) "stock_task", 0, 0},

    { E_POPUP_BAR, (gchar *) "40."},
    { E_POPUP_ITEM, (gchar *) "40.print", (gchar *) N_("P_rint..."), on_print, NULL, (gchar *) GTK_STOCK_PRINT, 0, 0 },

    { E_POPUP_BAR, (gchar *) "50." },
    { E_POPUP_ITEM, (gchar *) "50.paste", (gchar *) N_("_Paste"), on_paste, NULL, (gchar *) GTK_STOCK_PASTE, 0, E_CAL_POPUP_SELECT_EDITABLE },

    { E_POPUP_BAR, (gchar *) "60." },
    /* FIXME: hook in this somehow */
    { E_POPUP_SUBMENU, (gchar *) "60.view", (gchar *) N_("_Current View") },

    { E_POPUP_ITEM, (gchar *) "61.today", (gchar *) N_("Select T_oday"), on_goto_today, NULL, (gchar *) "go-today" },
    { E_POPUP_ITEM, (gchar *) "62.todate", (gchar *) N_("_Select Date..."), on_goto_date, NULL, (gchar *) GTK_STOCK_JUMP_TO },
};

static EPopupItem ecv_child_items [] = {
    { E_POPUP_ITEM, (gchar *) "00.open", (gchar *) N_("_Open"), on_edit_appointment, NULL, (gchar *) GTK_STOCK_OPEN, 0, E_CAL_POPUP_SELECT_NOTEDITING },
    { E_POPUP_ITEM, (gchar *) "10.saveas", (gchar *) N_("_Save As..."), on_save_as, NULL, (gchar *) GTK_STOCK_SAVE_AS, 0, E_CAL_POPUP_SELECT_NOTEDITING },
    { E_POPUP_ITEM, (gchar *) "20.print", (gchar *) N_("Pri_nt..."), on_print_event, NULL, (gchar *) GTK_STOCK_PRINT, 0, E_CAL_POPUP_SELECT_NOTEDITING },

    { E_POPUP_BAR, (gchar *) "30." },

    { E_POPUP_ITEM, (gchar *) "31.cut", (gchar *) N_("C_ut"), on_cut, NULL, (gchar *) GTK_STOCK_CUT, 0, E_CAL_POPUP_SELECT_NOTEDITING|E_CAL_POPUP_SELECT_EDITABLE|E_CAL_POPUP_SELECT_ORGANIZER },
    { E_POPUP_ITEM, (gchar *) "32.copy", (gchar *) N_("_Copy"), on_copy, NULL, (gchar *) GTK_STOCK_COPY, 0, E_CAL_POPUP_SELECT_NOTEDITING|E_CAL_POPUP_SELECT_ORGANIZER },
    { E_POPUP_ITEM, (gchar *) "33.paste", (gchar *) N_("_Paste"), on_paste, NULL, (gchar *) GTK_STOCK_PASTE, 0, E_CAL_POPUP_SELECT_EDITABLE },

    { E_POPUP_BAR, (gchar *) "40." },

    { E_POPUP_ITEM, (gchar *) "43.copyto", (gchar *) N_("Cop_y to Calendar..."), on_copy_to, NULL, NULL, 0, E_CAL_POPUP_SELECT_NOTEDITING },
    { E_POPUP_ITEM, (gchar *) "44.moveto", (gchar *) N_("Mo_ve to Calendar..."), on_move_to, NULL, NULL, 0, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE },
    { E_POPUP_ITEM, (gchar *) "45.delegate", (gchar *) N_("_Delegate Meeting..."), on_delegate, NULL, NULL, 0, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE | E_CAL_POPUP_SELECT_DELEGATABLE | E_CAL_POPUP_SELECT_MEETING},
    { E_POPUP_ITEM, (gchar *) "46.schedule", (gchar *) N_("_Schedule Meeting..."), on_meeting, NULL, NULL, 0, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE | E_CAL_POPUP_SELECT_NOTMEETING },
    { E_POPUP_ITEM, (gchar *) "47.forward", (gchar *) N_("_Forward as iCalendar..."), on_forward, NULL, (gchar *) "mail-forward", 0, E_CAL_POPUP_SELECT_NOTEDITING },
    { E_POPUP_ITEM, (gchar *) "48.reply", (gchar *) N_("_Reply"), on_reply, NULL, (gchar *) "mail-reply-sender", E_CAL_POPUP_SELECT_MEETING | E_CAL_POPUP_SELECT_NOSAVESCHEDULES, E_CAL_POPUP_SELECT_NOTEDITING },
    { E_POPUP_ITEM, (gchar *) "49.reply-all", (gchar *) N_("Reply to _All"), on_reply_all, NULL, (gchar *) "mail-reply-all", E_CAL_POPUP_SELECT_MEETING | E_CAL_POPUP_SELECT_NOSAVESCHEDULES, E_CAL_POPUP_SELECT_NOTEDITING },

    { E_POPUP_BAR, (gchar *) "50." },

    { E_POPUP_ITEM, (gchar *) "51.delete", (gchar *) N_("_Delete"), on_delete_appointment, NULL, (gchar *) GTK_STOCK_DELETE, E_CAL_POPUP_SELECT_NONRECURRING, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE },
    { E_POPUP_ITEM, (gchar *) "52.move", (gchar *) N_("Make this Occurrence _Movable"), on_unrecur_appointment, NULL, NULL, E_CAL_POPUP_SELECT_RECURRING | E_CAL_POPUP_SELECT_INSTANCE, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE },
    { E_POPUP_ITEM, (gchar *) "53.delete", (gchar *) N_("Delete this _Occurrence"), on_delete_occurrence, NULL, (gchar *) GTK_STOCK_DELETE, E_CAL_POPUP_SELECT_RECURRING, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE },
    { E_POPUP_ITEM, (gchar *) "54.delete", (gchar *) N_("Delete _All Occurrences"), on_delete_appointment, NULL, (gchar *) GTK_STOCK_DELETE, E_CAL_POPUP_SELECT_RECURRING, E_CAL_POPUP_SELECT_NOTEDITING | E_CAL_POPUP_SELECT_EDITABLE },
};

static void
ecv_popup_free (EPopup *ep, GSList *list, gpointer data)
{
    g_slist_free(list);
}

GtkMenu *
e_calendar_view_create_popup_menu (ECalendarView *cal_view)
{
    ECalPopup *ep;
    GSList *menus = NULL;
    GList *selected, *l;
    gint i;
    ECalPopupTargetSelect *t;
    ECalModel *model;
    GPtrArray *events;

    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);

    /* We could do this using a factory on the ECalPopup class,
     * that way we would get called implicitly whenever a popup
     * menu was created rather than everyone having to call us.
     * We could also have a different menu id for each view */

    /** @HookPoint-ECalPopup: Calendar Main View Context Menu
     * @Id: org.gnome.evolution.calendar.view.popup
     * @Class: org.gnome.evolution.calendar.popup:1.0
     * @Target: ECalPopupTargetSelect
     *
     * The context menu on the main calendar view.  This menu
     * applies to all view types.
     */
    ep = e_cal_popup_new("org.gnome.evolution.calendar.view.popup");

    model = e_calendar_view_get_model(cal_view);
    events = g_ptr_array_new();
    selected = e_calendar_view_get_selected_events(cal_view);
    for (l=selected;l;l=g_list_next(l)) {
        ECalendarViewEvent *event = l->data;

        if (event)
            g_ptr_array_add(events, e_cal_model_copy_component_data(event->comp_data));
    }
    g_list_free(selected);

    t = e_cal_popup_target_new_select(ep, model, events);
    t->target.widget = (GtkWidget *)cal_view;

    if (t->events->len == 0) {
        for (i=0;i<sizeof(ecv_main_items)/sizeof(ecv_main_items[0]);i++)
            menus = g_slist_prepend(menus, &ecv_main_items[i]);

        gnome_calendar_view_popup_factory(cal_view->priv->calendar, (EPopup *)ep, "60.view");
    } else {
        for (i=0;i<sizeof(ecv_child_items)/sizeof(ecv_child_items[0]);i++)
            menus = g_slist_prepend(menus, &ecv_child_items[i]);
    }

    e_popup_add_items((EPopup *)ep, menus, NULL, ecv_popup_free, cal_view);

    return e_popup_create_menu_once((EPopup *)ep, (EPopupTarget *)t, 0);
}

void
e_calendar_view_open_event (ECalendarView *cal_view)
{
    GList *selected;

    selected = e_calendar_view_get_selected_events (cal_view);
    if (selected) {
        ECalendarViewEvent *event = (ECalendarViewEvent *) selected->data;
        if (event)
            e_calendar_view_edit_appointment (cal_view, event->comp_data->client,
                    event->comp_data->icalcomp, icalcomponent_get_first_property(event->comp_data->icalcomp, ICAL_ATTENDEE_PROPERTY) != NULL);

        g_list_free (selected);
    }
}

/**
 * e_calendar_view_new_appointment_for
 * @cal_view: A calendar view.
 * @dtstart: A Unix time_t that marks the beginning of the appointment.
 * @dtend: A Unix time_t that marks the end of the appointment.
 * @all_day: If TRUE, the dtstart and dtend are expanded to cover
 * the entire day, and the event is set to TRANSPARENT.
 * @meeting: Whether the appointment is a meeting or not.
 *
 * Opens an event editor dialog for a new appointment.
 */
void
e_calendar_view_new_appointment_for (ECalendarView *cal_view,
                     time_t dtstart, time_t dtend,
                     gboolean all_day,
                     gboolean meeting)
{
    ECalendarViewPrivate *priv;
    struct icaltimetype itt;
    ECalComponentDateTime dt;
    ECalComponent *comp;
    icalcomponent *icalcomp;
    ECalComponentTransparency transparency;
    ECal *default_client = NULL;
    guint32 flags = 0;
    gboolean readonly = FALSE;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    priv = cal_view->priv;

    default_client = e_cal_model_get_default_client (priv->model);

    if (!default_client || e_cal_get_load_state (default_client) != E_CAL_LOAD_LOADED) {
        g_warning ("Default client not loaded \n");
        return;
    }

    if (e_cal_is_read_only (default_client, &readonly, NULL) && readonly) {
        GtkWidget *widget;

        widget = e_error_new (NULL, "calendar:prompt-read-only-cal", e_source_peek_name (e_cal_get_source (default_client)), NULL);

        g_signal_connect ((GtkDialog *)widget, "response", G_CALLBACK (gtk_widget_destroy),
                  widget);
        gtk_widget_show (widget);
        return;
    }

    dt.value = &itt;
    if (all_day)
        dt.tzid = NULL;
    else
        dt.tzid = icaltimezone_get_tzid (e_cal_model_get_timezone (cal_view->priv->model));

    icalcomp = e_cal_model_create_component_with_defaults (priv->model, all_day);
    comp = e_cal_component_new ();
    e_cal_component_set_icalcomponent (comp, icalcomp);

    /* DTSTART, DTEND */
    itt = icaltime_from_timet_with_zone (dtstart, FALSE, e_cal_model_get_timezone (cal_view->priv->model));
    if (all_day) {
        itt.hour = itt.minute = itt.second = 0;
        itt.is_date = TRUE;
    }
    e_cal_component_set_dtstart (comp, &dt);

    itt = icaltime_from_timet_with_zone (dtend, FALSE, e_cal_model_get_timezone (cal_view->priv->model));
    if (all_day) {
        /* We round it up to the end of the day, unless it is
           already set to midnight */
        if (itt.hour != 0 || itt.minute != 0 || itt.second != 0) {
            icaltime_adjust (&itt, 1, 0, 0, 0);
        }
        itt.hour = itt.minute = itt.second = 0;
        itt.is_date = TRUE;
    }
    e_cal_component_set_dtend (comp, &dt);

    /* TRANSPARENCY */
    transparency = all_day ? E_CAL_COMPONENT_TRANSP_TRANSPARENT
        : E_CAL_COMPONENT_TRANSP_OPAQUE;
    e_cal_component_set_transparency (comp, transparency);

    /* CATEGORY */
    e_cal_component_set_categories (comp, priv->default_category);

    /* edit the object */
    e_cal_component_commit_sequence (comp);

    flags |= COMP_EDITOR_NEW_ITEM;
    if (meeting) {
        flags |= COMP_EDITOR_MEETING;
        flags |= COMP_EDITOR_USER_ORG;
    }

    e_calendar_view_open_event_with_flags (cal_view, default_client,
            icalcomp, flags);

    g_object_unref (comp);
}

/**
 * e_calendar_view_new_appointment_full
 * @param cal_view: A calendar view.
 * @param all_day: Whether create all day event or not.
 * @param meeting: This is a meeting or an appointment.
 * @param no_past_date: Don't create event in past date, use actual date instead (if TRUE).
 *
 * Opens an event editor dialog for a new appointment. The appointment's
 * start and end times are set to the currently selected time range in
 * the calendar view.
 *
 * When the selection is for all day and we don't need @all_day event,
 * then this do a rounding to the actual hour for actual day (today) and
 * to the 'day begins' from preferences in other selected day.
 */
void
e_calendar_view_new_appointment_full (ECalendarView *cal_view, gboolean all_day, gboolean meeting, gboolean no_past_date)
{
    time_t dtstart, dtend, now;
    gboolean do_rounding = FALSE;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    now = time (NULL);

    if (!e_calendar_view_get_selected_time_range (cal_view, &dtstart, &dtend)) {
        dtstart = now;
        dtend = dtstart + 3600;
    }

    if (no_past_date && dtstart < now) {
        dtend = time_day_begin (now) + (dtend - dtstart);
        dtstart = time_day_begin (now);
        do_rounding = TRUE;
    }

    /* We either need rounding or don't want to set all_day for this, we will rather use actual */
    /* time in this cases; dtstart should be a midnight in this case */
    if (do_rounding || (!all_day && (dtend - dtstart) == (60 * 60 * 24))) {
        struct tm local = *localtime (&now);
        gint time_div = calendar_config_get_time_divisions ();
        gint hours, mins;

        if (!time_div) /* Possible if your gconf values aren't so nice */
            time_div = 30;

        if (time_day_begin (now) == time_day_begin (dtstart)) {
            /* same day as today */
            hours = local.tm_hour;
            mins = local.tm_min;

            /* round minutes to nearest time division, up or down */
            if ((mins % time_div) >= time_div / 2)
                mins += time_div;
            mins = (mins - (mins % time_div));
        } else {
            /* other day than today */
            hours = calendar_config_get_day_start_hour ();
            mins = calendar_config_get_day_start_minute ();
        }

        dtstart = dtstart + (60 * 60 * hours) + (mins * 60);
        dtend = dtstart + (time_div * 60);
    }

    e_calendar_view_new_appointment_for (cal_view, dtstart, dtend, all_day, meeting);
}

void
e_calendar_view_new_appointment (ECalendarView *cal_view)
{
    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    e_calendar_view_new_appointment_full (cal_view, FALSE, FALSE, FALSE);
}

/* Ensures the calendar is selected */
static void
object_created_cb (CompEditor *ce, ECalendarView *cal_view)
{
    gnome_calendar_emit_user_created_signal (cal_view, e_calendar_view_get_calendar (cal_view), comp_editor_get_client (ce));
}

CompEditor *
e_calendar_view_open_event_with_flags (ECalendarView *cal_view, ECal *client, icalcomponent *icalcomp, guint32 flags)
{
    CompEditor *ce;
    const gchar *uid;
    ECalComponent *comp;


    uid = icalcomponent_get_uid (icalcomp);

    ce = e_comp_editor_registry_find (comp_editor_registry, uid);
    if (!ce) {
        ce = event_editor_new (client, flags);

        g_signal_connect (ce, "object_created", G_CALLBACK (object_created_cb), cal_view);

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (icalcomp));
        comp_editor_edit_comp (ce, comp);
        if (flags & COMP_EDITOR_MEETING)
            event_editor_show_meeting (EVENT_EDITOR (ce));

        e_comp_editor_registry_add (comp_editor_registry, ce, FALSE);

        g_object_unref (comp);
    }

    gtk_window_present (GTK_WINDOW (ce));

    return ce;
}

/**
 * e_calendar_view_edit_appointment
 * @cal_view: A calendar view.
 * @client: Calendar client.
 * @icalcomp: The object to be edited.
 * @meeting: Whether the appointment is a meeting or not.
 *
 * Opens an editor window to allow the user to edit the selected
 * object.
 */
void
e_calendar_view_edit_appointment (ECalendarView *cal_view,
                 ECal *client,
                 icalcomponent *icalcomp,
                 gboolean meeting)
{
    guint32 flags = 0;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));
    g_return_if_fail (E_IS_CAL (client));
    g_return_if_fail (icalcomp != NULL);

    if (meeting) {
        ECalComponent *comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (icalcomp));
        flags |= COMP_EDITOR_MEETING;
        if (itip_organizer_is_user (comp, client) || itip_sentby_is_user (comp, client) || !e_cal_component_has_attendees (comp))
            flags |= COMP_EDITOR_USER_ORG;
        g_object_unref (comp);
    }


    e_calendar_view_open_event_with_flags (cal_view, client, icalcomp, flags);
}

void
e_calendar_view_modify_and_send (ECalComponent *comp,
                 ECal *client,
                 CalObjModType mod,
                 GtkWindow *toplevel,
                 gboolean new)
{
    if (e_cal_modify_object (client, e_cal_component_get_icalcomponent (comp), mod, NULL)) {
        gboolean strip_alarms = TRUE;

        if ((itip_organizer_is_user (comp, client) || itip_sentby_is_user (comp, client)) &&
            send_component_dialog (toplevel, client, comp, new, &strip_alarms)) {
            ECalComponent *send_comp = NULL;

            if (mod == CALOBJ_MOD_ALL && e_cal_component_is_instance (comp)) {
                /* Ensure we send the master object, not the instance only */
                icalcomponent *icalcomp = NULL;
                const gchar *uid = NULL;

                e_cal_component_get_uid (comp, &uid);
                if (e_cal_get_object (client, uid, NULL, &icalcomp, NULL) && icalcomp) {
                    send_comp = e_cal_component_new ();
                    if (!e_cal_component_set_icalcomponent (send_comp, icalcomp)) {
                        icalcomponent_free (icalcomp);
                        g_object_unref (send_comp);
                        send_comp = NULL;
                    }
                }
            }

            itip_send_comp (E_CAL_COMPONENT_METHOD_REQUEST, send_comp ? send_comp : comp, client, NULL, NULL, NULL, strip_alarms);

            if (send_comp)
                g_object_unref (send_comp);
        }
    } else {
        g_message (G_STRLOC ": Could not update the object!");
    }
}

static gboolean
tooltip_grab (GtkWidget *tooltip, GdkEventKey *event, ECalendarView *view)
{
    GtkWidget *widget = (GtkWidget *) g_object_get_data (G_OBJECT (view), "tooltip-window");

    if (!widget)
        return TRUE;

    gdk_keyboard_ungrab(GDK_CURRENT_TIME);
    gtk_widget_destroy (widget);
    g_object_set_data (G_OBJECT (view), "tooltip-window", NULL);

    return FALSE;
}

static gchar *
get_label (struct icaltimetype *tt, icaltimezone *f_zone, icaltimezone *t_zone)
{
        gchar buffer[1000];
        struct tm tmp_tm;

    tmp_tm = icaltimetype_to_tm_with_zone (tt, f_zone, t_zone);
        e_time_format_date_and_time (&tmp_tm,
                                     calendar_config_get_24_hour_format (),
                                     FALSE, FALSE,
                                     buffer, 1000);

        return g_strdup (buffer);
}

void
e_calendar_view_move_tip (GtkWidget *widget, gint x, gint y)
{
  GtkRequisition requisition;
  gint w, h;
  GdkScreen *screen;
  GdkScreen *pointer_screen;
  gint monitor_num, px, py;
  GdkRectangle monitor;

  screen = gtk_widget_get_screen (widget);

  gtk_widget_size_request (widget, &requisition);
  w = requisition.width;
  h = requisition.height;

  gdk_display_get_pointer (gdk_screen_get_display (screen),
                           &pointer_screen, &px, &py, NULL);
  if (pointer_screen != screen)
    {
      px = x;
      py = y;
    }
  monitor_num = gdk_screen_get_monitor_at_point (screen, px, py);
  gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);

  if ((x + w) > monitor.x + monitor.width)
    x -= (x + w) - (monitor.x + monitor.width);
  else if (x < monitor.x)
    x = monitor.x;

  if ((y + h + widget->allocation.height + 4) > monitor.y + monitor.height)
    y = y - h - 36;

  gtk_window_move (GTK_WINDOW (widget), x, y);
  gtk_widget_show (widget);
}

/**
 * Returns information about attendees in the component. If no attendees, then returns NULL.
 * The information is like "Status: Accepted: X   Declined: Y  ...".
 * Free returned pointer with g_free.
 **/
gchar *
e_calendar_view_get_attendees_status_info (ECalComponent *comp, ECal *client)
{
    struct _values {
        icalparameter_partstat status;
        const gchar *caption;
        gint count;
    } values[] = {
        { ICAL_PARTSTAT_ACCEPTED,    N_("Accepted"),     0 },
        { ICAL_PARTSTAT_DECLINED,    N_("Declined"),     0 },
        { ICAL_PARTSTAT_TENTATIVE,   N_("Tentative"),    0 },
        { ICAL_PARTSTAT_DELEGATED,   N_("Delegated"),    0 },
        { ICAL_PARTSTAT_NEEDSACTION, N_("Needs action"), 0 },
        { ICAL_PARTSTAT_NONE,        N_("Other"),        0 },
        { ICAL_PARTSTAT_X,           NULL,              -1 }
    };

    GSList *attendees = NULL, *a;
    gboolean have = FALSE;
    gchar *res = NULL;
    gint i;

    if (!comp || !e_cal_component_has_attendees (comp) || !itip_organizer_is_user_ex (comp, client, TRUE))
        return NULL;

    e_cal_component_get_attendee_list (comp, &attendees);

    for (a = attendees; a; a = a->next) {
        ECalComponentAttendee *att = a->data;

        if (att && att->cutype == ICAL_CUTYPE_INDIVIDUAL &&
            (att->role == ICAL_ROLE_CHAIR ||
             att->role == ICAL_ROLE_REQPARTICIPANT ||
             att->role == ICAL_ROLE_OPTPARTICIPANT)) {
            have = TRUE;

            for (i = 0; values[i].count != -1; i++) {
                if (att->status == values[i].status || values[i].status == ICAL_PARTSTAT_NONE) {
                    values[i].count++;
                    break;
                }
            }
        }
    }

    if (have) {
        GString *str = g_string_new ("");

        for (i = 0; values[i].count != -1; i++) {
            if (values[i].count > 0) {
                if (str->str && *str->str)
                    g_string_append (str, "   ");

                g_string_append_printf (str, "%s: %d", _(values[i].caption), values[i].count);
            }
        }

        g_string_prepend (str, ": ");

        /* To Translators: 'Status' here means the state of the attendees, the resulting string will be in a form:
           Status: Accepted: X   Declined: Y   ... */
        g_string_prepend (str, _("Status"));

        res = g_string_free (str, FALSE);
    }

    if (attendees)
        e_cal_component_free_attendee_list (attendees);

    return res;
}

/*
 * It is expected to show the tooltips in this below format
 *
 *  <B>SUBJECT OF THE MEETING</B>
 *  Organiser: NameOfTheUser<email@ofuser.com>
 *  Location: PlaceOfTheMeeting
 *  Time : DateAndTime (xx Minutes)
 *      Status: Accepted: X   Declined: Y   ...
 */

gboolean
e_calendar_view_get_tooltips (ECalendarViewEventData *data)
{
    GtkWidget *label, *box, *hbox, *ebox, *frame;
    const gchar *str;
    gchar *tmp, *tmp1, *tmp2;
    ECalComponentOrganizer organiser;
    ECalComponentDateTime dtstart, dtend;
    icalcomponent *clone_comp;
    time_t t_start, t_end;
    ECalendarViewEvent *pevent;
    GtkStyle *style = gtk_widget_get_default_style ();
    GtkWidget *widget = (GtkWidget *) g_object_get_data (G_OBJECT (data->cal_view), "tooltip-window");
    ECalComponent *newcomp = e_cal_component_new ();
    icaltimezone *zone, *default_zone;
    ECal *client = NULL;
    gboolean free_text = FALSE;

    /* Delete any stray tooltip if left */
    if (widget)
        gtk_widget_destroy (widget);

    default_zone = e_calendar_view_get_timezone  (data->cal_view);
    pevent = data->get_view_event (data->cal_view, data->day, data->event_num);

    client = pevent->comp_data->client;

    clone_comp = icalcomponent_new_clone (pevent->comp_data->icalcomp);
    if (!e_cal_component_set_icalcomponent (newcomp, clone_comp))
        g_warning ("couldn't update calendar component with modified data from backend\n");

    box = gtk_vbox_new (FALSE, 0);

    str = e_calendar_view_get_icalcomponent_summary (pevent->comp_data->client, pevent->comp_data->icalcomp, &free_text);

    if (!(str && *str)) {
        g_object_unref (newcomp);
        gtk_widget_destroy (box);
        g_free (data);

        return FALSE;
    }

    tmp = g_markup_printf_escaped ("<b>%s</b>", str);
    label = gtk_label_new (NULL);
    gtk_label_set_line_wrap ((GtkLabel *)label, TRUE);
    gtk_label_set_markup ((GtkLabel *)label, tmp);

    if (free_text) {
        g_free ((gchar *)str);
        str = NULL;
    }

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_box_pack_start ((GtkBox *)hbox, label, FALSE, FALSE, 0);
    ebox = gtk_event_box_new ();
    gtk_container_add ((GtkContainer *)ebox, hbox);
    gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL, &(style->bg[GTK_STATE_SELECTED]));
    gtk_widget_modify_fg (label, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));

    gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);
    g_free (tmp);

    e_cal_component_get_organizer (newcomp, &organiser);
    if (organiser.cn) {
        gchar *ptr;
        ptr = strchr(organiser.value, ':');

        if (ptr) {
            ptr++;
            /* To Translators: It will display "Organiser: NameOfTheUser <email@ofuser.com>" */
            tmp = g_strdup_printf (_("Organizer: %s <%s>"), organiser.cn, ptr);
        }
        else
            /* With SunOne accouts, there may be no ':' in organiser.value*/
            tmp = g_strdup_printf (_("Organizer: %s"), organiser.cn);

        label = gtk_label_new (tmp);
        hbox = gtk_hbox_new (FALSE, 0);
        gtk_box_pack_start ((GtkBox *)hbox, label, FALSE, FALSE, 0);
        ebox = gtk_event_box_new ();
        gtk_container_add ((GtkContainer *)ebox, hbox);
        gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);

        g_free (tmp);
    }

    e_cal_component_get_location (newcomp, &str);

    if (str) {
        /* To Translators: It will display "Location: PlaceOfTheMeeting" */
        tmp = g_markup_printf_escaped (_("Location: %s"), str);
        label = gtk_label_new (NULL);
        gtk_label_set_markup ((GtkLabel *)label, tmp);
        hbox = gtk_hbox_new (FALSE, 0);
        gtk_box_pack_start ((GtkBox *)hbox, label, FALSE, FALSE, 0);
        ebox = gtk_event_box_new ();
        gtk_container_add ((GtkContainer *)ebox, hbox);
        gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);
        g_free (tmp);
    }
    e_cal_component_get_dtstart (newcomp, &dtstart);
    e_cal_component_get_dtend (newcomp, &dtend);

    if (dtstart.tzid) {
        zone = icalcomponent_get_timezone (e_cal_component_get_icalcomponent (newcomp), dtstart.tzid);
        if (!zone)
            e_cal_get_timezone (client, dtstart.tzid, &zone, NULL);

        if (!zone)
            zone = default_zone;

    } else {
        zone = NULL;
    }
    t_start = icaltime_as_timet_with_zone (*dtstart.value, zone);
    t_end = icaltime_as_timet_with_zone (*dtend.value, zone);

    tmp1 = get_label(dtstart.value, zone, default_zone);
    tmp = calculate_time (t_start, t_end);

    /* To Translators: It will display "Time: ActualStartDateAndTime (DurationOfTheMeeting)"*/
    tmp2 = g_strdup_printf(_("Time: %s %s"), tmp1, tmp);
    if (zone && !cal_comp_util_compare_event_timezones (newcomp, client, default_zone)) {
        g_free (tmp);
        g_free (tmp1);

        tmp1 = get_label (dtstart.value, zone, zone);
        tmp = g_strconcat (tmp2, "\n\t[ ", tmp1, " ", icaltimezone_get_display_name (zone), " ]", NULL);
    } else {
        g_free (tmp);
        tmp = tmp2;
        tmp2 = NULL;
    }

    e_cal_component_free_datetime (&dtstart);
    e_cal_component_free_datetime (&dtend);

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_box_pack_start ((GtkBox *)hbox, gtk_label_new_with_mnemonic (tmp), FALSE, FALSE, 0);
    ebox = gtk_event_box_new ();
    gtk_container_add ((GtkContainer *)ebox, hbox);
    gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);

    g_free (tmp);
    g_free (tmp2);
    g_free (tmp1);

    tmp = e_calendar_view_get_attendees_status_info (newcomp, pevent->comp_data->client);
    if (tmp) {
        hbox = gtk_hbox_new (FALSE, 0);
        gtk_box_pack_start ((GtkBox *)hbox, gtk_label_new (tmp), FALSE, FALSE, 0);
        ebox = gtk_event_box_new ();
        gtk_container_add ((GtkContainer *)ebox, hbox);
        gtk_box_pack_start ((GtkBox *)box, ebox, FALSE, FALSE, 0);

        g_free (tmp);
    }

    pevent->tooltip = gtk_window_new (GTK_WINDOW_POPUP);
    frame = gtk_frame_new (NULL);
    gtk_frame_set_shadow_type ((GtkFrame *)frame, GTK_SHADOW_IN);

    gtk_window_set_type_hint (GTK_WINDOW (pevent->tooltip), GDK_WINDOW_TYPE_HINT_TOOLTIP);
    gtk_window_move ((GtkWindow *)pevent->tooltip, pevent->x +16, pevent->y+16);
    gtk_container_add ((GtkContainer *)frame, box);
    gtk_container_add ((GtkContainer *)pevent->tooltip, frame);

    gtk_widget_show_all (pevent->tooltip);

    e_calendar_view_move_tip (pevent->tooltip, pevent->x +16, pevent->y+16);

    gdk_keyboard_grab (pevent->tooltip->window, FALSE, GDK_CURRENT_TIME);
    g_signal_connect (pevent->tooltip, "key-press-event", G_CALLBACK (tooltip_grab), data->cal_view);
    pevent->timeout = -1;

    g_object_set_data (G_OBJECT (data->cal_view), "tooltip-window", pevent->tooltip);
    g_object_unref (newcomp);
    g_free (data);

    return FALSE;
}

static gboolean
icalcomp_contains_category (icalcomponent *icalcomp, const gchar *category)
{
    icalproperty *property;

    g_return_val_if_fail (icalcomp != NULL && category != NULL, FALSE);

    for (property = icalcomponent_get_first_property (icalcomp, ICAL_CATEGORIES_PROPERTY);
         property != NULL;
         property = icalcomponent_get_next_property (icalcomp, ICAL_CATEGORIES_PROPERTY)) {
        gchar *value = icalproperty_get_value_as_string_r (property);

        if (value && strcmp (category, value) == 0){
            g_free (value);
            return TRUE;
        }
        g_free (value);
    }

    return FALSE;
}

/* e_calendar_view_get_icalcomponent_summary returns summary of calcomp,
 * and for type of birthday or anniversary it append number of years since
 * beginning. In this case, the free_text is set to TRUE and caller need
 * to g_free returned string, otherwise free_text is set to FALSE and
 * returned value is owned by calcomp.
 */

const gchar *
e_calendar_view_get_icalcomponent_summary (ECal *ecal, icalcomponent *icalcomp, gboolean *free_text)
{
    const gchar *summary;

    g_return_val_if_fail (icalcomp != NULL && free_text != NULL, NULL);

    *free_text = FALSE;
    summary = icalcomponent_get_summary (icalcomp);

    if (icalcomp_contains_category (icalcomp, _("Birthday")) ||
        icalcomp_contains_category (icalcomp, _("Anniversary"))) {
        struct icaltimetype dtstart, dtnow;
        icalcomponent *item_icalcomp = NULL;

        if (e_cal_get_object (ecal,
                      icalcomponent_get_uid (icalcomp),
                      icalcomponent_get_relcalid (icalcomp),
                      &item_icalcomp,
                      NULL)) {
            dtstart = icalcomponent_get_dtstart (item_icalcomp);
            dtnow = icalcomponent_get_dtstart (icalcomp);

            if (dtnow.year - dtstart.year > 0) {
                summary = g_strdup_printf ("%s (%d)", summary ? summary : "", dtnow.year - dtstart.year);
                *free_text = summary != NULL;
            }
        }
    }

    return summary;
}

void
draw_curved_rectangle (cairo_t *cr, double x0, double y0,
            double rect_width, double rect_height,
            double radius)
{
    double x1, y1;

    x1 = x0 + rect_width;
    y1 = y0 + rect_height;

    if (!rect_width || !rect_height)
        return;
    if (rect_width / 2 < radius) {
        if (rect_height / 2 < radius) {
        cairo_move_to  (cr, x0, (y0 + y1)/2);
        cairo_curve_to (cr, x0 ,y0, x0, y0, (x0 + x1)/2, y0);
        cairo_curve_to (cr, x1, y0, x1, y0, x1, (y0 + y1)/2);
        cairo_curve_to (cr, x1, y1, x1, y1, (x1 + x0)/2, y1);
        cairo_curve_to (cr, x0, y1, x0, y1, x0, (y0 + y1)/2);
        } else {
        cairo_move_to  (cr, x0, y0 + radius);
        cairo_curve_to (cr, x0 ,y0, x0, y0, (x0 + x1)/2, y0);
        cairo_curve_to (cr, x1, y0, x1, y0, x1, y0 + radius);
        cairo_line_to (cr, x1 , y1 - radius);
        cairo_curve_to (cr, x1, y1, x1, y1, (x1 + x0)/2, y1);
        cairo_curve_to (cr, x0, y1, x0, y1, x0, y1- radius);
        }
    } else {
        if (rect_height / 2 < radius) {
        cairo_move_to  (cr, x0, (y0 + y1)/2);
        cairo_curve_to (cr, x0 , y0, x0 , y0, x0 + radius, y0);
        cairo_line_to (cr, x1 - radius, y0);
        cairo_curve_to (cr, x1, y0, x1, y0, x1, (y0 + y1)/2);
        cairo_curve_to (cr, x1, y1, x1, y1, x1 - radius, y1);
        cairo_line_to (cr, x0 + radius, y1);
        cairo_curve_to (cr, x0, y1, x0, y1, x0, (y0 + y1)/2);
        } else {
        cairo_move_to  (cr, x0, y0 + radius);
        cairo_curve_to (cr, x0 , y0, x0 , y0, x0 + radius, y0);
        cairo_line_to (cr, x1 - radius, y0);
        cairo_curve_to (cr, x1, y0, x1, y0, x1, y0 + radius);
        cairo_line_to (cr, x1 , y1 - radius);
        cairo_curve_to (cr, x1, y1, x1, y1, x1 - radius, y1);
        cairo_line_to (cr, x0 + radius, y1);
        cairo_curve_to (cr, x0, y1, x0, y1, x0, y1- radius);
        }
    }
    cairo_close_path (cr);
}

static void
error_response(GtkWidget *widget, gint response, gpointer data)
{
    gtk_widget_destroy (widget);
}

void
e_calendar_utils_show_error_silent (GtkWidget *widget)
{
    EActivityHandler *handler = calendar_component_peek_activity_handler (calendar_component_peek ());

    if(!g_object_get_data ((GObject *) widget, "response-handled")) {
        g_signal_connect(widget, "response", G_CALLBACK(error_response), NULL);
    }

    e_activity_handler_make_error (handler, "calendar", E_LOG_ERROR, widget);
}

void
e_calendar_utils_show_info_silent (GtkWidget *widget)
{
    EActivityHandler *handler = calendar_component_peek_activity_handler (calendar_component_peek ());

    if(!g_object_get_data ((GObject *) widget, "response-handled")) {
        g_signal_connect(widget, "response", G_CALLBACK(error_response), NULL);
    }

    e_activity_handler_make_error (handler, "calendar", E_LOG_WARNINGS, widget);
}

/* returns either light or dark yellow, based on the base_background,
   which is the default background color */
GdkColor
get_today_background (const GdkColor base_background)
{
    GdkColor res = base_background;

    if (res.red > 0x7FFF) {
        /* light yellow for a light theme */
        res.red   = 0xFFFF;
        res.green = 0xFFFF;
        res.blue  = 0xC0C0;
    } else {
        /* dark yellow for a dark theme */
        res.red   = 0x3F3F;
        res.green = 0x3F3F;
        res.blue  = 0x0000;
    }

    return res;
}