path: root/calendar/gui/e-calendar-view.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/* 
 * Author : 
 *  Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright 2003, Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of version 2 of the GNU General Public 
 * License as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#include <config.h>
#include <string.h>
#include <time.h>
#include <gtk/gtkimage.h>
#include <gtk/gtkstock.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtkbindings.h>
#include <libgnome/gnome-i18n.h>
#include <gal/util/e-util.h>
#include <e-util/e-dialog-utils.h>
#include <e-util/e-icon-factory.h>
#include "e-calendar-marshal.h"
#include <libecal/e-cal-time-util.h>
#include <libecal/e-cal-component.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 "e-pub-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"

/* Used for the status bar messages */
#define EVOLUTION_CALENDAR_PROGRESS_IMAGE "stock_calendar"
static GdkPixbuf *progress_icon = NULL;

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 popup menu */
    EPopupMenu *view_menu;

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

static void e_calendar_view_class_init (ECalendarViewClass *klass);
static void e_calendar_view_init (ECalendarView *cal_view, ECalendarViewClass *klass);
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);

static GObjectClass *parent_class = NULL;
static GdkAtom clipboard_atom = GDK_NONE;
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,
    OPEN_EVENT,
    LAST_SIGNAL
};

static guint e_calendar_view_signals[LAST_SIGNAL] = { 0 };

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

    cal_view = E_CALENDAR_VIEW (object);
    priv = cal_view->priv;
    
    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;
    ECalendarViewPrivate *priv;

    cal_view = E_CALENDAR_VIEW (object);
    priv = cal_view->priv;

    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;

    parent_class = g_type_class_peek_parent (klass);

    /* 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->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;

    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_calendar_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[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);

    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);

    /* clipboard atom */
    if (!clipboard_atom)
        clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);


        /*
         * 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;
    struct icaldurationtype ic_dur, ic_oneday;
    char *uid;
    gint start_offset, end_offset;
    gboolean all_day_event = FALSE;
    GnomeCalendarViewType view_type;
    ECalComponentDateTime dt;

    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 */
            int time_divisions;

            time_divisions = calendar_config_get_time_divisions ();
            ic_dur = icaldurationtype_from_int (time_divisions * 60);
        }
        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;
        break;
    default:
        g_assert_not_reached ();
        return;
    }
    
    if (in_top_canvas)
        new_dtstart = dtstart + start_offset * 60;
    else
        new_dtstart = dtstart;

    itime = icaltime_from_timet_with_zone (new_dtstart, FALSE, 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);

    /* set the timezone properly */
    dt.value = &itime;
    e_cal_component_get_dtstart (comp, &dt);
    dt.tzid = icaltimezone_get_tzid (default_zone);
    e_cal_component_set_dtstart (comp, &dt);
    e_cal_component_get_dtend (comp, &dt);
    dt.tzid = icaltimezone_get_tzid (default_zone);
    e_cal_component_set_dtend (comp, &dt);
    e_cal_component_commit_sequence (comp);

    /* FIXME Error handling */
    uid = NULL;
    if (e_cal_create_object (client, e_cal_component_get_icalcomponent (comp), &uid, NULL)) {
        if (uid) {
            e_cal_component_set_uid (comp, uid);
            g_free (uid);
        }

        if (itip_organizer_is_user (comp, client) &&
            send_component_dialog ((GtkWindow *) gtk_widget_get_toplevel (GTK_WIDGET (cal_view)),
                       client, comp, TRUE)) {
            itip_send_comp (E_CAL_COMPONENT_METHOD_REQUEST, comp,
                client, NULL);
        }
    } else {
        g_message (G_STRLOC ": Could not create the object!");
    }

    g_object_unref (comp);
}

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

    cal_view->priv->model = (ECalModel *) e_cal_model_calendar_new ();
}

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 (parent_class)->destroy)
        GTK_OBJECT_CLASS (parent_class)->destroy (object);
}

E_MAKE_TYPE (e_calendar_view, "ECalendarView", ECalendarView, e_calendar_view_class_init,
         e_calendar_view_init, GTK_TYPE_TABLE);

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, 0, NULL, cal_view);
        g_object_unref (cal_view->priv->model);
    }

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

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 char *
e_calendar_view_get_default_category (ECalendarView *cal_view)
{
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);
    return (const char *) 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 char *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)
{
    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) {
        char *client_id = g_strdup_printf ("%p", cal_view);

        if (progress_icon == NULL)
            progress_icon = e_icon_factory_get_icon (EVOLUTION_CALENDAR_PROGRESS_IMAGE, E_ICON_SIZE_STATUS);

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

        g_free (client_id);
    } else {
        e_activity_handler_operation_progressing (priv->activity_handler, priv->activity_id, message, -1.0);
    }
}

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 char *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"));

    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) 
            && 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);

        e_cal_component_get_uid (comp, &uid);
        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);

    g_list_free (selected);
}

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

    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);
    }

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

        new_icalcomp = icalcomponent_new_clone (event->comp_data->icalcomp);
        icalcomponent_add_component (vcal_comp, new_icalcomp);
    }

    /* copy the VCALENDAR to the clipboard */
    comp_str = icalcomponent_as_ical_string (vcal_comp);
    gtk_clipboard_set_text (gtk_widget_get_clipboard (GTK_WIDGET (cal_view), clipboard_atom),
                (const gchar *) comp_str,
                g_utf8_strlen (comp_str, -1));

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

static void
clipboard_get_text_cb (GtkClipboard *clipboard, const gchar *text, ECalendarView *cal_view)
{
    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));

    icalcomp = icalparser_parse_string ((const char *) 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"));
    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;

    /* FIXME Timezone handling */
    if (kind == ICAL_VCALENDAR_COMPONENT) {
        icalcomponent_kind child_kind;
        icalcomponent *subcomp;

        subcomp = icalcomponent_get_first_component (icalcomp, ICAL_ANY_COMPONENT);
        while (subcomp) {
            child_kind = icalcomponent_isa (subcomp);
            if (child_kind == ICAL_VEVENT_COMPONENT)
                e_calendar_view_add_event (cal_view, client, selected_time_start, 
                               default_zone, subcomp, in_top_canvas);
            else if (child_kind == ICAL_VTIMEZONE_COMPONENT) {
                icaltimezone *zone;

                zone = icaltimezone_new ();
                icaltimezone_set_component (zone, subcomp);
                e_cal_add_timezone (client, zone, NULL);
                
                icaltimezone_free (zone, 1);
            }
            
            subcomp = icalcomponent_get_next_component (
                icalcomp, ICAL_ANY_COMPONENT);
        }

        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);
}

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

    gtk_clipboard_request_text (gtk_widget_get_clipboard (GTK_WIDGET (cal_view), clipboard_atom),
                    (GtkClipboardTextReceivedFunc) clipboard_get_text_cb, cal_view);
}

static void
delete_event (ECalendarView *cal_view, ECalendarViewEvent *event)
{
    ECalComponent *comp;
    ECalComponentVType vtype;

    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);

    if (delete_component_dialog (comp, FALSE, 1, vtype, GTK_WIDGET (cal_view))) {
        const char *uid;
        GError *error = NULL;
        
        if (itip_organizer_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);

        e_cal_component_get_uid (comp, &uid);
        if (!uid || !*uid) {
            g_object_unref (comp);
            return;
        }
        
        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);
}

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)
{
    ECalendarViewEvent *event;
    GList *selected;
    const char *uid, *rid = NULL;
    GError *error = NULL;
    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));
    e_cal_component_get_uid (comp, &uid);
    if (e_cal_component_is_instance (comp))
        rid = e_cal_component_get_recurid_as_string (comp);
    else {
        ECalComponentDateTime dt;

        e_cal_component_get_dtstart (comp, &dt);
        if (dt.value) {
            rid = icaltime_as_ical_string (icaltime_from_timet (event->start, dt.value->is_date));
            e_cal_component_free_datetime (&dt);
        }
    }

    if (rid) {
        if (delete_component_dialog (comp, FALSE, 1, e_cal_component_get_vtype (comp), GTK_WIDGET (cal_view))) {

            if (itip_organizer_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);

            e_cal_remove_object_with_mod (event->comp_data->client, uid, rid, CALOBJ_MOD_THIS, &error);
            delete_error_dialog (error, E_CAL_COMPONENT_EVENT);
            g_clear_error (&error);
        }
    }

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

static void
on_new_appointment (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = (ECalendarView *) user_data;

    e_calendar_view_new_appointment (cal_view);
}

static void
on_new_event (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = (ECalendarView *) user_data;

    e_calendar_view_new_appointment_full (cal_view, TRUE, FALSE);
}

static void
on_new_meeting (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = (ECalendarView *) user_data;

    e_calendar_view_new_appointment_full (cal_view, FALSE, TRUE);
}

static void
on_new_task (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = (ECalendarView *) user_data;
    gnome_calendar_new_task (cal_view->priv->calendar);
}

static void
on_goto_date (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

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

static void
on_goto_today (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

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

static void
on_edit_appointment (GtkWidget *widget, gpointer user_data)
{
    GList *selected;
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    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, FALSE);

        g_list_free (selected);
    }
}

static void
on_print (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view;
    time_t start, end;
    GnomeCalendarViewType view_type;
    PrintView print_view;

    cal_view = E_CALENDAR_VIEW (user_data);

    e_calendar_view_get_visible_time_range (cal_view, &start, &end);
    view_type = gnome_calendar_get_view (cal_view->priv->calendar);

    switch (view_type) {
    case GNOME_CAL_DAY_VIEW :
        print_view = PRINT_VIEW_DAY;
        break;

    case GNOME_CAL_WORK_WEEK_VIEW :
    case GNOME_CAL_WEEK_VIEW:
        print_view = PRINT_VIEW_WEEK;
        break;

    case GNOME_CAL_MONTH_VIEW:
        print_view = PRINT_VIEW_MONTH;
        break;

    default:
        g_assert_not_reached ();
        return;
    }

    print_calendar (cal_view->priv->calendar, FALSE, start, print_view);
}

static void
on_save_as (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view;
    GList *selected;
    char *filename;
    char *ical_string;
    FILE *file;
    ECalendarViewEvent *event;

    cal_view = E_CALENDAR_VIEW (user_data);

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

    filename = e_file_dialog_save (_("Save as..."));
    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;
    }
    
    file = fopen (filename, "w");
    if (file == NULL) {
        g_warning ("Couldn't save item");
        return;
    }
    
    fprintf (file, ical_string);
    g_free (ical_string);
    fclose (file);

    g_list_free (selected);
}

static void
on_print_event (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view;
    GList *selected;
    ECalendarViewEvent *event;
    ECalComponent *comp;

    cal_view = E_CALENDAR_VIEW (user_data);
    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, FALSE);

    g_object_unref (comp);
    g_list_free (selected);
}

static void
transfer_item_to (ECalendarViewEvent *event, ESource *destination_source, gboolean remove_item)
{
}

static void
on_copy_to (GtkWidget *widget, gpointer user_data)
{
    GList *selected, *l;
    ESource *destination_source;
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    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 (widget), E_CAL_SOURCE_TYPE_EVENT);
    if (!destination_source)
        return;

    /* process all selected events */
    for (l = selected; l != NULL; l = l->next)
        transfer_item_to ((ECalendarViewEvent *) l->data, destination_source, FALSE);

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

static void
on_move_to (GtkWidget *widget, gpointer user_data)
{
    GList *selected, *l;
    ESource *destination_source;
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    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 (widget), E_CAL_SOURCE_TYPE_EVENT);
    if (!destination_source)
        return;

    /* process all selected events */
    for (l = selected; l != NULL; l = l->next)
        transfer_item_to ((ECalendarViewEvent *) l->data, destination_source, FALSE);

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

static void
on_meeting (GtkWidget *widget, gpointer user_data)
{
    GList *selected;
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    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
on_forward (GtkWidget *widget, gpointer user_data)
{
    GList *selected;
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    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);

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

static void
on_publish (GtkWidget *widget, gpointer user_data)
{
    e_pub_publish (TRUE);
}

static void
on_delete_appointment (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view;

    cal_view = E_CALENDAR_VIEW (user_data);
    e_calendar_view_delete_selected_event (cal_view);
}

static void
on_delete_occurrence (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view;

    cal_view = E_CALENDAR_VIEW (user_data);
    e_calendar_view_delete_selected_occurrence (cal_view);
}

static void
on_cut (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    e_calendar_view_cut_clipboard (cal_view);
}

static void
on_copy (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    e_calendar_view_copy_clipboard (cal_view);
}

static void
on_paste (GtkWidget *widget, gpointer user_data)
{
    ECalendarView *cal_view = E_CALENDAR_VIEW (user_data);

    e_calendar_view_paste_clipboard (cal_view);
}

enum {
    /*
     * This is used to "flag" events that can not be editted
     */
    MASK_EDITABLE = 1,

    /*
     * To disable recurring actions to be displayed
     */
    MASK_RECURRING = 2,

    /*
     * To disable actions for non-recurring items to be displayed
     */
    MASK_SINGLE   = 4,

    /*
     * This is used to when an event is currently being edited
     * in another window and we want to disable the event
     * from being edited twice
     */
    MASK_EDITING  = 8,

    /*
     * This is used to when an event is already a meeting and
     * we want to disable the schedule meeting command
     */
    MASK_MEETING  = 16,

    /*
     * To disable cut and copy for meetings the user is not the
     * organizer of
     */
    MASK_MEETING_ORGANIZER = 32,

    /*
     * To disable things not valid for instances
     */
    MASK_INSTANCE = 64
};

static EPopupMenu main_items [] = {
    E_POPUP_ITEM (N_("New _Appointment..."), GTK_SIGNAL_FUNC (on_new_appointment), MASK_EDITABLE),
    E_POPUP_ITEM (N_("New All Day _Event"), GTK_SIGNAL_FUNC (on_new_event), MASK_EDITABLE),
    E_POPUP_ITEM (N_("New Meeting"), GTK_SIGNAL_FUNC (on_new_meeting), MASK_EDITABLE),
    E_POPUP_ITEM (N_("New Task"), GTK_SIGNAL_FUNC (on_new_task), MASK_EDITABLE),

    E_POPUP_SEPARATOR,

    E_POPUP_ITEM (N_("_Print..."), GTK_SIGNAL_FUNC (on_print), 0),

    E_POPUP_SEPARATOR,

    E_POPUP_ITEM (N_("_Paste"), GTK_SIGNAL_FUNC (on_paste), MASK_EDITABLE),

    E_POPUP_SEPARATOR,

    E_POPUP_SUBMENU (N_("Current View"), NULL, 0),
    
    E_POPUP_ITEM (N_("Select _Today"), GTK_SIGNAL_FUNC (on_goto_today), 0),
    E_POPUP_ITEM (N_("_Select Date..."), GTK_SIGNAL_FUNC (on_goto_date), 0),

    E_POPUP_SEPARATOR,

    E_POPUP_ITEM (N_("_Publish Free/Busy Information"), GTK_SIGNAL_FUNC (on_publish), 0),

    E_POPUP_TERMINATOR
};

static EPopupMenu child_items [] = {
    E_POPUP_ITEM (N_("_Open"), GTK_SIGNAL_FUNC (on_edit_appointment), MASK_EDITING),
    E_POPUP_ITEM (N_("_Save As..."), GTK_SIGNAL_FUNC (on_save_as), MASK_EDITING),
    E_POPUP_ITEM (N_("_Print..."), GTK_SIGNAL_FUNC (on_print_event), MASK_EDITING),

    /* Only show this separator if one of the above is shown. */
    E_POPUP_SEPARATOR,

    E_POPUP_ITEM (N_("C_ut"), GTK_SIGNAL_FUNC (on_cut), MASK_EDITING | MASK_EDITABLE | MASK_MEETING_ORGANIZER),
    E_POPUP_ITEM (N_("_Copy"), GTK_SIGNAL_FUNC (on_copy), MASK_EDITING | MASK_MEETING_ORGANIZER),
    E_POPUP_ITEM (N_("_Paste"), GTK_SIGNAL_FUNC (on_paste), MASK_EDITABLE),

    E_POPUP_SEPARATOR,

    E_POPUP_ITEM (N_("Cop_y to Calendar..."), GTK_SIGNAL_FUNC (on_copy_to), MASK_EDITING),
    E_POPUP_ITEM (N_("Mo_ve to Calendar..."), GTK_SIGNAL_FUNC (on_move_to), MASK_EDITING | MASK_EDITABLE),
    E_POPUP_ITEM (N_("_Schedule Meeting..."), GTK_SIGNAL_FUNC (on_meeting), MASK_EDITABLE | MASK_EDITING | MASK_MEETING),
    E_POPUP_ITEM (N_("_Forward as iCalendar..."), GTK_SIGNAL_FUNC (on_forward), MASK_EDITING),

    E_POPUP_SEPARATOR,

    E_POPUP_ITEM (N_("_Delete"), GTK_SIGNAL_FUNC (on_delete_appointment), MASK_EDITABLE | MASK_SINGLE | MASK_EDITING),
    E_POPUP_ITEM (N_("Delete this _Occurrence"), GTK_SIGNAL_FUNC (on_delete_occurrence), MASK_RECURRING | MASK_EDITING | MASK_EDITABLE),
    E_POPUP_ITEM (N_("Delete _All Occurrences"), GTK_SIGNAL_FUNC (on_delete_appointment), MASK_RECURRING | MASK_EDITING | MASK_EDITABLE),

    E_POPUP_TERMINATOR
};

static void
free_view_popup (GtkWidget *widget, gpointer data)
{
    ECalendarView *cal_view = E_CALENDAR_VIEW (data);

    if (cal_view->priv->view_menu == NULL)
        return;
    
    gnome_calendar_discard_view_popup (cal_view->priv->calendar, cal_view->priv->view_menu);
    cal_view->priv->view_menu = NULL;
}

static void
setup_popup_icons (EPopupMenu *context_menu)
{
    gint i;

    for (i = 0; context_menu[i].name; i++) {
        GtkWidget *pixmap_widget = NULL;
        GdkPixbuf *pixbuf;
        
        if (!strcmp (context_menu[i].name, _("_Copy")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_COPY, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("C_ut")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_CUT, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("_Delete")) ||
             !strcmp (context_menu[i].name, _("Delete this _Occurrence")) ||
             !strcmp (context_menu[i].name, _("Delete _All Occurrences")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_DELETE, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("Go to _Today")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_HOME, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("_Go to Date...")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_JUMP_TO, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("New _Appointment..."))) {
            pixbuf = e_icon_factory_get_icon ("stock_new-appointment", E_ICON_SIZE_MENU);
            pixmap_widget = gtk_image_new_from_pixbuf (pixbuf);
            gdk_pixbuf_unref (pixbuf);
        }
        else if (!strcmp (context_menu[i].name, _("New All Day _Event"))) {
            pixbuf = e_icon_factory_get_icon ("stock_new-24h-appointment", E_ICON_SIZE_MENU);
            pixmap_widget = gtk_image_new_from_pixbuf (pixbuf);
            gdk_pixbuf_unref (pixbuf);
        }
        else if (!strcmp (context_menu[i].name, _("New Meeting"))) {
            pixbuf = e_icon_factory_get_icon ("stock_new-meeting", E_ICON_SIZE_MENU);
            pixmap_widget = gtk_image_new_from_pixbuf (pixbuf);
            gdk_pixbuf_unref (pixbuf);
        }
        else if (!strcmp (context_menu[i].name, _("New Task"))) {
            pixbuf = e_icon_factory_get_icon ("stock_task", E_ICON_SIZE_MENU);
            pixmap_widget = gtk_image_new_from_pixbuf (pixbuf);
            gdk_pixbuf_unref (pixbuf);
        }
        else if (!strcmp (context_menu[i].name, _("_Open")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_OPEN, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("_Paste")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_PASTE, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("_Print...")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_PRINT, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("_Save As...")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_SAVE_AS, GTK_ICON_SIZE_MENU);
        else if (!strcmp (context_menu[i].name, _("_Settings...")))
            pixmap_widget = gtk_image_new_from_stock (GTK_STOCK_PREFERENCES, GTK_ICON_SIZE_MENU);

        if (pixmap_widget)
            gtk_widget_show (pixmap_widget);
        context_menu[i].pixmap_widget = pixmap_widget;
    }
}

GtkMenu *
e_calendar_view_create_popup_menu (ECalendarView *cal_view)
{
    GList *selected;
    EPopupMenu *context_menu;
    guint32 disable_mask = 0, hide_mask = 0;
    GtkMenu *popup;
    ECal *client = NULL;
    gboolean read_only = TRUE;
    
    g_return_val_if_fail (E_IS_CALENDAR_VIEW (cal_view), NULL);

    /* get the selection */
    selected = e_calendar_view_get_selected_events (cal_view);

    if (selected == NULL) {
        cal_view->priv->view_menu = gnome_calendar_setup_view_popup (cal_view->priv->calendar);
        main_items[9].submenu = cal_view->priv->view_menu;
        context_menu = main_items;

        client = e_cal_model_get_default_client (cal_view->priv->model);
    } else {
        ECalendarViewEvent *event;

        context_menu = child_items;

        event = (ECalendarViewEvent *) selected->data;
        if (e_cal_util_component_has_recurrences (event->comp_data->icalcomp))
            hide_mask |= MASK_SINGLE;
        else
            hide_mask |= MASK_RECURRING;

        if (e_cal_util_component_is_instance (event->comp_data->icalcomp))
            hide_mask |= MASK_INSTANCE;

        if (e_cal_util_component_has_organizer (event->comp_data->icalcomp)) {
            ECalComponent *comp;

            disable_mask |= MASK_MEETING;

            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))
                disable_mask |= MASK_MEETING_ORGANIZER;

            g_object_unref (comp);
        }

        client = event->comp_data->client;
    }

    e_cal_is_read_only (client, &read_only, NULL);
    if (read_only)
        disable_mask |= MASK_EDITABLE;

    setup_popup_icons (context_menu);
    popup = e_popup_menu_create (context_menu, disable_mask, hide_mask, cal_view);
    g_signal_connect (popup, "selection-done", G_CALLBACK (free_view_popup), cal_view);

    return popup;
}

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, FALSE);

        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;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

    priv = cal_view->priv;

    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);
    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);

    e_calendar_view_edit_appointment (cal_view,
                     e_cal_model_get_default_client (priv->model),
                     icalcomp, meeting);

    g_object_unref (comp);
}

/**
 * e_calendar_view_new_appointment
 * @cal_view: A calendar view.
 *
 * 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.
 */
void
e_calendar_view_new_appointment_full (ECalendarView *cal_view, gboolean all_day, gboolean meeting)
{
    time_t dtstart, dtend;

    g_return_if_fail (E_IS_CALENDAR_VIEW (cal_view));

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

/**
 * 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)
{
    ECalendarViewPrivate *priv;
    CompEditor *ce;
    const char *uid;
    ECalComponent *comp;

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

    priv = cal_view->priv;

    uid = icalcomponent_get_uid (icalcomp);

    ce = e_comp_editor_registry_find (comp_editor_registry, uid);
    if (!ce) {
        EventEditor *ee;

        ee = event_editor_new (client);
        ce = COMP_EDITOR (ee);

        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (icalcomp));
        comp_editor_edit_comp (ce, comp);
        if (meeting)
            event_editor_show_meeting (ee);

        e_comp_editor_registry_add (comp_editor_registry, ce, FALSE);

        g_object_unref (comp);
    }

    comp_editor_focus (ce);
}

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)) {
        if (itip_organizer_is_user (comp, client) &&
            send_component_dialog (toplevel, client, comp, new))
            itip_send_comp (E_CAL_COMPONENT_METHOD_REQUEST, comp, client, NULL);
    } else {
        g_message (G_STRLOC ": Could not update the object!");
    }
}