path: root/calendar/gui/calendar-component.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* calendar-component.c
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 * 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., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 * Authors: Ettore Perazzoli <ettore@ximian.com>
 *          Rodrigo Moya <rodrigo@ximian.com>
 */

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

#include <string.h>
#include <errno.h>
#include <glib/gi18n.h>
#include <bonobo/bonobo-control.h>
#include <bonobo/bonobo-exception.h>
#include <libical/icalvcal.h>
#include <libedataserver/e-data-server-util.h>
#include <libedataserver/e-url.h>
#include <libecal/e-cal-time-util.h>
#include <libedataserverui/e-source-selector.h>
#include <shell/e-user-creatable-items-handler.h>
#include <shell/e-component-view.h>
#include "e-calendar-view.h"
#include "calendar-config-keys.h"
#include "calendar-config.h"
#include "calendar-component.h"
#include "calendar-commands.h"
#include "control-factory.h"
#include "gnome-cal.h"
#include "migration.h"
#include "e-comp-editor-registry.h"
#include "comp-util.h"
#include "common/authentication.h"
#include "dialogs/calendar-setup.h"
#include "dialogs/comp-editor.h"
#include "dialogs/copy-source-dialog.h"
#include "dialogs/event-editor.h"
#include "misc/e-info-label.h"
#include "e-util/e-error.h"
#include "e-util/e-icon-factory.h"
#include "e-cal-menu.h"
#include "e-cal-popup.h"

/* IDs for user creatable items */
#define CREATE_EVENT_ID        "event"
#define CREATE_MEETING_ID      "meeting"
#define CREATE_ALLDAY_EVENT_ID "allday-event"
#define CREATE_CALENDAR_ID      "calendar"
#define WEB_BASE_URI "webcal://"
#define CONTACTS_BASE_URI "contacts://"
#define WEATHER_BASE_URI "weather://"
#define PERSONAL_RELATIVE_URI "system"

enum DndTargetType {
    DND_TARGET_TYPE_CALENDAR_LIST,
};
#define CALENDAR_TYPE "text/calendar"
#define XCALENDAR_TYPE "text/x-calendar"
static GtkTargetEntry drag_types[] = {
    { CALENDAR_TYPE, 0, DND_TARGET_TYPE_CALENDAR_LIST },
    { XCALENDAR_TYPE, 0, DND_TARGET_TYPE_CALENDAR_LIST }
};
static gint num_drag_types = sizeof(drag_types) / sizeof(drag_types[0]);

#define PARENT_TYPE bonobo_object_get_type ()
static BonoboObjectClass *parent_class = NULL;

typedef struct
{
    ESourceList *source_list;
    ESourceList *task_source_list;
    ESourceList *memo_source_list;

    GSList *source_selection;
    GSList *task_source_selection;
    GSList *memo_source_selection;

    GnomeCalendar *calendar;

    EInfoLabel *info_label;
    GtkWidget *source_selector;

    BonoboControl *view_control;
    BonoboControl *sidebar_control;
    BonoboControl *statusbar_control;

    GList *notifications;

    EUserCreatableItemsHandler *creatable_items_handler;

    EActivityHandler *activity_handler;

    float        vpane_pos;
} CalendarComponentView;

struct _CalendarComponentPrivate {
    char *base_directory;
    char *config_directory;

    GConfClient *gconf_client;
    int gconf_notify_id;

    ESourceList *source_list;
    ESourceList *task_source_list;
    ESourceList *memo_source_list;

    GList *views;

    ECal *create_ecal;

    GList *notifications;
};

/* FIXME This should be gnome cal likely */
extern ECompEditorRegistry *comp_editor_registry;

static void
calcomp_vpane_realized (GtkWidget *vpane, CalendarComponentView *view)
{
    gtk_paned_set_position (GTK_PANED (vpane), (int)(view->vpane_pos*vpane->allocation.height));

}

static gboolean
calcomp_vpane_resized (GtkWidget *vpane, GdkEventButton *e, CalendarComponentView *view)
{

    view->vpane_pos = gtk_paned_get_position (GTK_PANED (vpane));
    calendar_config_set_tag_vpane_pos (view->vpane_pos/(float)vpane->allocation.height);

    return FALSE;
}

static void
ensure_sources (CalendarComponent *component)
{
    GSList *groups;
    ESourceList *source_list;
    ESourceGroup *group;
    ESourceGroup *on_this_computer;
    ESourceGroup *on_the_web;
    ESourceGroup *contacts;
    ESourceGroup *weather;
    ESource *personal_source;
    ESource *birthdays_source;
    char *base_uri, *base_uri_proto;
    const gchar *base_dir;
    gchar *create_source;

    on_this_computer = NULL;
    on_the_web = NULL;
    contacts = NULL;
    weather = NULL;
    personal_source = NULL;
    birthdays_source = NULL;

    if (!e_cal_get_sources (&source_list, E_CAL_SOURCE_TYPE_EVENT, NULL)) {
        g_warning ("Could not get calendar source list from GConf!");
        return;
    }

    base_dir = calendar_component_peek_base_directory (component);
    base_uri = g_build_filename (base_dir, "local", NULL);

    base_uri_proto = g_filename_to_uri (base_uri, NULL, NULL);

    groups = e_source_list_peek_groups (source_list);
    if (groups) {
        /* groups are already there, we need to search for things... */
        GSList *g;

        for (g = groups; g; g = g->next) {

            group = E_SOURCE_GROUP (g->data);

            /* compare only file:// part. If user home dir name changes we do not want to create
               one more group  */

            if (!on_this_computer && !strncmp (base_uri_proto, e_source_group_peek_base_uri (group), 7))
                on_this_computer = group;
            else if (!on_the_web && !strcmp (WEB_BASE_URI, e_source_group_peek_base_uri (group)))
                on_the_web = group;
            else if (!contacts && !strcmp (CONTACTS_BASE_URI, e_source_group_peek_base_uri (group)))
                contacts = group;
            else if (!weather && !strcmp (WEATHER_BASE_URI, e_source_group_peek_base_uri (group)))
                weather = group;
        }
    }

    if (on_this_computer) {
        /* make sure "Personal" shows up as a source under
           this group */
        GSList *sources = e_source_group_peek_sources (on_this_computer);
        GSList *s;
        for (s = sources; s; s = s->next) {
            ESource *source = E_SOURCE (s->data);
            const gchar *relative_uri;

            relative_uri = e_source_peek_relative_uri (source);
            if (relative_uri == NULL)
                continue;
            if (!strcmp (PERSONAL_RELATIVE_URI, relative_uri)) {
                personal_source = source;
                break;
            }
        }
        /* Make sure we have the correct base uri. This can change when user's
           homedir name changes */
        if (strcmp (base_uri_proto, e_source_group_peek_base_uri (on_this_computer))) {
            e_source_group_set_base_uri (on_this_computer, base_uri_proto);

            /* *sigh* . We shouldn't  need this sync call here as set_base_uri
               call results in synching to gconf, but that happens in idle loop
               and too late to prevent user seeing "Can not Open ... because of invalid uri" error.*/
            e_source_list_sync (source_list,NULL);
        }
    }
    else {
        /* create the local source group */
        group = e_source_group_new (_("On This Computer"), base_uri_proto);
        e_source_list_add_group (source_list, group, -1);

        on_this_computer = group;
    }

    if (!personal_source) {
        char *primary_calendar = calendar_config_get_primary_calendar();
        GSList *calendars_selected;

        /* Create the default Person addressbook */
        personal_source = e_source_new (_("Personal"), PERSONAL_RELATIVE_URI);
        e_source_group_add_source (on_this_computer, personal_source, -1);
        g_object_unref (personal_source);

        calendars_selected = calendar_config_get_calendars_selected ();
        if (!primary_calendar && !calendars_selected) {
            GSList selected;

            calendar_config_set_primary_calendar (e_source_peek_uid (personal_source));

            selected.data = (gpointer)e_source_peek_uid (personal_source);
            selected.next = NULL;
            calendar_config_set_calendars_selected (&selected);
        }

        if (calendars_selected) {
            g_slist_foreach (calendars_selected, (GFunc) g_free, NULL);
            g_slist_free (calendars_selected);
        }

        g_free (primary_calendar);
        e_source_set_color_spec (personal_source, "#BECEDD");
    }

    if (!on_the_web) {
        /* Create the On the web source group */
        group = e_source_group_new (_("On The Web"), WEB_BASE_URI);
        e_source_list_add_group (source_list, group, -1);

        on_the_web = group;
    }
    if (contacts) {
        GSList *sources = e_source_group_peek_sources (contacts);
        if (sources) {
            birthdays_source = E_SOURCE (sources->data); /* There is only one source under Contacts Group*/

            if (sources->next) {
                /* Ensure we have only one contacts source - we was able to create more than one before */
                GSList *l = NULL, *p;

                for (p = sources->next; p; p = p->next)
                    l = g_slist_prepend (l, p->data);

                for (p = l; p; p = p->next)
                    e_source_group_remove_source (contacts, p->data);

                g_slist_free (l);
            }
        }
    }
    else  {
        /* Create the contacts group */
        group = e_source_group_new (_("Contacts"), CONTACTS_BASE_URI);
        e_source_list_add_group (source_list, group, -1);
        contacts = group;
    }

    create_source = e_source_group_get_property (contacts, "create_source");
    if (!create_source)
        e_source_group_set_property (contacts, "create_source", "no");
    g_free (create_source);

    if (!birthdays_source) {
        birthdays_source = e_source_new (_("Birthdays & Anniversaries"), "/");
        e_source_group_add_source (contacts, birthdays_source, -1);
        g_object_unref (birthdays_source);
    }

    if (!e_source_get_property (birthdays_source, "delete"))
        e_source_set_property(birthdays_source, "delete", "no");

    if (e_source_peek_color_spec (birthdays_source) == NULL)
        e_source_set_color_spec (birthdays_source, "#DDBECE");

    if (!weather) {
        /* Create the weather group */
        group = e_source_group_new (_("Weather"), WEATHER_BASE_URI);
        e_source_list_add_group (source_list, group, -1);
        weather = group;
    }

    component->priv->source_list = source_list;

    g_free (base_uri_proto);
    g_free (base_uri);
}


/* Utility functions.  */

static gboolean
is_in_selection (GSList *selection, ESource *source)
{
    GSList *l;

    for (l = selection; l; l = l->next) {
        ESource *selected_source = l->data;

        if (!strcmp (e_source_peek_uid (selected_source), e_source_peek_uid (source)))
            return TRUE;
    }

    return FALSE;
}

static gboolean
is_in_uids (GSList *uids, ESource *source)
{
    GSList *l;

    for (l = uids; l; l = l->next) {
        const char *uid = l->data;

        if (!strcmp (uid, e_source_peek_uid (source)))
            return TRUE;
    }

    return FALSE;
}

static void
update_uris_for_selection (CalendarComponentView *component_view)
{
    GSList *selection, *l, *uids_selected = NULL;

    selection = e_source_selector_get_selection (E_SOURCE_SELECTOR (component_view->source_selector));

    for (l = component_view->source_selection; l; l = l->next) {
        ESource *old_selected_source = l->data;

        if (!is_in_selection (selection, old_selected_source))
            gnome_calendar_remove_source (component_view->calendar, E_CAL_SOURCE_TYPE_EVENT, old_selected_source);
    }

    for (l = selection; l; l = l->next) {
        ESource *selected_source = l->data;

        if (gnome_calendar_add_source (component_view->calendar, E_CAL_SOURCE_TYPE_EVENT, selected_source))
            uids_selected = g_slist_append (uids_selected, (char *) e_source_peek_uid (selected_source));
    }

    e_source_selector_free_selection (component_view->source_selection);
    component_view->source_selection = selection;

    /* Save the selection for next time we start up */
    calendar_config_set_calendars_selected (uids_selected);
    g_slist_free (uids_selected);
}

static void
update_uri_for_primary_selection (CalendarComponentView *component_view)
{
    ESource *source;

    source = e_source_selector_peek_primary_selection (E_SOURCE_SELECTOR (component_view->source_selector));
    if (!source)
        return;

    /* Set the default */
    gnome_calendar_set_default_source (component_view->calendar, E_CAL_SOURCE_TYPE_EVENT, source);

    /* Make sure we are embedded first */
    calendar_control_sensitize_calendar_commands (component_view->view_control, component_view->calendar, TRUE);

    /* Save the selection for next time we start up */
    calendar_config_set_primary_calendar (e_source_peek_uid (source));
}

static void
update_selection (CalendarComponentView *component_view)
{
    GSList *selection, *uids_selected, *l;

    /* Get the selection in gconf */
    uids_selected = calendar_config_get_calendars_selected ();

    /* Remove any that aren't there any more */
    selection = e_source_selector_get_selection (E_SOURCE_SELECTOR (component_view->source_selector));

    for (l = selection; l; l = l->next) {
        ESource *source = l->data;

        if (!is_in_uids (uids_selected, source))
            e_source_selector_unselect_source (E_SOURCE_SELECTOR (component_view->source_selector), source);
    }

    e_source_selector_free_selection (selection);

    /* Make sure the whole selection is there */
    for (l = uids_selected; l; l = l->next) {
        char *uid = l->data;
        ESource *source;

        source = e_source_list_peek_source_by_uid (component_view->source_list, uid);
        if (source)
            e_source_selector_select_source (E_SOURCE_SELECTOR (component_view->source_selector), source);

        g_free (uid);
    }
    g_slist_free (uids_selected);
}

static void
update_task_memo_selection (CalendarComponentView *component_view, ECalSourceType type)
{
    GSList *uids_selected, *l, *source_selection;
    ESourceList *source_list = NULL;

    if (type == E_CAL_SOURCE_TYPE_TODO) {
        /* Get the selection in gconf */
        uids_selected = calendar_config_get_tasks_selected ();
        source_list = component_view->task_source_list;
        source_selection = component_view->task_source_selection;
    } else {
        uids_selected = calendar_config_get_memos_selected ();
        source_list = component_view->memo_source_list;
        source_selection = component_view->memo_source_selection;
    }

    /* Remove any that aren't there any more */
    for (l = source_selection; l; l = l->next) {
        char *uid = l->data;
        ESource *source;

        source = e_source_list_peek_source_by_uid (component_view->source_list, uid);
        if (!source)
            gnome_calendar_remove_source_by_uid (component_view->calendar, type, uid);
        else if (!is_in_uids (uids_selected, source))
            gnome_calendar_remove_source (component_view->calendar, type, source);

        g_free (uid);
    }
    g_slist_free (source_selection);

    /* Make sure the whole selection is there */
    for (l = uids_selected; l; l = l->next) {
        char *uid = l->data;
        ESource *source;

        source = e_source_list_peek_source_by_uid (source_list, uid);
        if (source && !gnome_calendar_add_source (component_view->calendar, type, source))
            /* FIXME do something */;
    }

    if (type == E_CAL_SOURCE_TYPE_TODO)
        component_view->task_source_selection = uids_selected;
    else
        component_view->memo_source_selection = uids_selected;
}

static void
update_primary_selection (CalendarComponentView *component_view)
{
    ESource *source = NULL;
    char *uid;

    uid = calendar_config_get_primary_calendar ();
    if (uid) {
        source = e_source_list_peek_source_by_uid (component_view->source_list, uid);
        g_free (uid);
    }

    if (source) {
        e_source_selector_set_primary_selection (E_SOURCE_SELECTOR (component_view->source_selector), source);
    } else {
        /* Try to create a default if there isn't one */
        source = e_source_list_peek_source_any (component_view->source_list);
        if (source)
            e_source_selector_set_primary_selection (E_SOURCE_SELECTOR (component_view->source_selector), source);
    }
}

static void
update_primary_task_memo_selection (CalendarComponentView *component_view, ECalSourceType type)
{
    ESource *source = NULL;
    char *uid;
    ESourceList *source_list = NULL;

    if (type == E_CAL_SOURCE_TYPE_TODO) {
        uid = calendar_config_get_primary_tasks ();
        source_list = component_view->task_source_list;
    } else {
        uid = calendar_config_get_primary_memos ();
        source_list = component_view->memo_source_list;
    }

    if (uid) {
        source = e_source_list_peek_source_by_uid (source_list, uid);

        g_free (uid);
    }

    if (source)
        gnome_calendar_set_default_source (component_view->calendar, type, source);
}

/* Callbacks.  */
static void
copy_calendar_cb (EPopup *ep, EPopupItem *pitem, void *data)
{
    CalendarComponentView *component_view = data;
    ESource *selected_source;

    selected_source = e_source_selector_peek_primary_selection (E_SOURCE_SELECTOR (component_view->source_selector));
    if (!selected_source)
        return;

    copy_source_dialog (GTK_WINDOW (gtk_widget_get_toplevel (ep->target->widget)), selected_source, E_CAL_SOURCE_TYPE_EVENT);
}

static void
delete_calendar_cb (EPopup *ep, EPopupItem *pitem, void *data)
{
    CalendarComponentView *component_view = data;
    ESource *selected_source;
    ECal *cal;
    char *uri;

    selected_source = e_source_selector_peek_primary_selection (E_SOURCE_SELECTOR (component_view->source_selector));
    if (!selected_source)
        return;

    if (e_error_run((GtkWindow *)gtk_widget_get_toplevel(ep->target->widget),
            "calendar:prompt-delete-calendar", e_source_peek_name(selected_source)) != GTK_RESPONSE_YES)
        return;

    /* first, ask the backend to remove the calendar */
    uri = e_source_get_uri (selected_source);
    cal = e_cal_model_get_client_for_uri (gnome_calendar_get_calendar_model (component_view->calendar), uri);
    if (!cal)
        cal = e_cal_new_from_uri (uri, E_CAL_SOURCE_TYPE_EVENT);
    g_free (uri);
    if (cal) {
        if (e_cal_remove (cal, NULL)) {
            if (e_source_selector_source_is_selected (E_SOURCE_SELECTOR (component_view->source_selector),
                                  selected_source)) {
                gnome_calendar_remove_source (component_view->calendar, E_CAL_SOURCE_TYPE_EVENT, selected_source);
                e_source_selector_unselect_source (E_SOURCE_SELECTOR (component_view->source_selector),
                                   selected_source);
            }

            e_source_group_remove_source (e_source_peek_group (selected_source), selected_source);
            e_source_list_sync (component_view->source_list, NULL);
        }
    }
}

static void
new_calendar_cb (EPopup *ep, EPopupItem *pitem, void *data)
{
    calendar_setup_edit_calendar (GTK_WINDOW (gtk_widget_get_toplevel(ep->target->widget)), NULL, pitem->user_data);
}

static void
edit_calendar_cb (EPopup *ep, EPopupItem *pitem, void *data)
{
    CalendarComponentView *component_view = data;
    ESource *selected_source;

    selected_source = e_source_selector_peek_primary_selection (E_SOURCE_SELECTOR (component_view->source_selector));
    if (!selected_source)
        return;

    calendar_setup_edit_calendar (GTK_WINDOW (gtk_widget_get_toplevel(ep->target->widget)), selected_source, NULL);
}

static EPopupItem ecc_source_popups[] = {
    { E_POPUP_ITEM, "10.new", N_("_New Calendar"), new_calendar_cb, NULL, "x-office-calendar", 0, 0 },
    { E_POPUP_ITEM, "15.copy", N_("_Copy..."), copy_calendar_cb, NULL, "edit-copy", 0, E_CAL_POPUP_SOURCE_PRIMARY },

    { E_POPUP_BAR, "20.bar" },
    { E_POPUP_ITEM, "20.delete", N_("_Delete"), delete_calendar_cb, NULL, "edit-delete", 0,E_CAL_POPUP_SOURCE_USER|E_CAL_POPUP_SOURCE_PRIMARY|E_CAL_POPUP_SOURCE_DELETE },

    { E_POPUP_BAR, "99.bar" },
    { E_POPUP_ITEM, "99.properties", N_("_Properties"), edit_calendar_cb, NULL, "document-properties", 0, E_CAL_POPUP_SOURCE_PRIMARY },
};

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

static gboolean
popup_event_cb(ESourceSelector *selector, ESource *insource, GdkEventButton *event, CalendarComponentView *component_view)
{
    ECalPopup *ep;
    ECalPopupTargetSource *t;
    GSList *menus = NULL;
    int i;
    GtkMenu *menu;

    /** @HookPoint-ECalPopup: Calendar Source Selector Context Menu
     * @Id: org.gnome.evolution.calendar.source.popup
     * @Class: org.gnome.evolution.calendar.popup:1.0
     * @Target: ECalPopupTargetSource
     *
     * The context menu on the source selector in the calendar window.
     */
    ep = e_cal_popup_new("org.gnome.evolution.calendar.source.popup");
    t = e_cal_popup_target_new_source(ep, selector);
    t->target.widget = (GtkWidget *)component_view->calendar;

    for (i=0;i<sizeof(ecc_source_popups)/sizeof(ecc_source_popups[0]);i++)
        menus = g_slist_prepend(menus, &ecc_source_popups[i]);

    e_popup_add_items((EPopup *)ep, menus, NULL, ecc_source_popup_free, component_view);

    menu = e_popup_create_menu_once((EPopup *)ep, (EPopupTarget *)t, 0);
    gtk_menu_popup(menu, NULL, NULL, NULL, NULL, event?event->button:0, event?event->time:gtk_get_current_event_time());

    return TRUE;
}

static void
source_selection_changed_cb (ESourceSelector *selector, CalendarComponentView *component_view)
{
    update_uris_for_selection (component_view);
}

static void
primary_source_selection_changed_cb (ESourceSelector *selector, CalendarComponentView *component_view)
{
    update_uri_for_primary_selection (component_view);
}

static void
source_changed_cb (ESource *source, GnomeCalendar *calendar)
{
    if (calendar) {
        GtkWidget *widget = gnome_calendar_get_current_view_widget (calendar);

        if (widget)
            gtk_widget_queue_draw (widget);
    }
}

static void
source_added_cb (GnomeCalendar *calendar, ECalSourceType source_type, ESource *source, CalendarComponentView *component_view)
{
    switch (source_type) {
    case E_CAL_SOURCE_TYPE_EVENT:
        e_source_selector_select_source (E_SOURCE_SELECTOR (component_view->source_selector), source);
        g_signal_connect (source, "changed", G_CALLBACK (source_changed_cb), calendar);
        break;
    default:
        break;
    }
}

static void
source_removed_cb (GnomeCalendar *calendar, ECalSourceType source_type, ESource *source, CalendarComponentView *component_view)
{
    switch (source_type) {
    case E_CAL_SOURCE_TYPE_EVENT:
        g_signal_handlers_disconnect_by_func (source, G_CALLBACK (source_changed_cb), calendar);
        e_source_selector_unselect_source (E_SOURCE_SELECTOR (component_view->source_selector), source);
        break;
    default:
        break;
    }
}

static void
set_info (CalendarComponentView *component_view)
{
    icaltimezone *zone;
    struct icaltimetype start_tt, end_tt;
    time_t start_time, end_time;
    struct tm start_tm, end_tm;
    char buffer[512], end_buffer[256];
    GnomeCalendarViewType view;

    gnome_calendar_get_visible_time_range (component_view->calendar, &start_time, &end_time);
    zone = gnome_calendar_get_timezone (component_view->calendar);

    start_tt = icaltime_from_timet_with_zone (start_time, FALSE, zone);
    start_tm.tm_year = start_tt.year - 1900;
    start_tm.tm_mon = start_tt.month - 1;
    start_tm.tm_mday = start_tt.day;
    start_tm.tm_hour = start_tt.hour;
    start_tm.tm_min = start_tt.minute;
    start_tm.tm_sec = start_tt.second;
    start_tm.tm_isdst = -1;
    start_tm.tm_wday = time_day_of_week (start_tt.day, start_tt.month - 1,
                         start_tt.year);

    /* Take one off end_time so we don't get an extra day. */
    end_tt = icaltime_from_timet_with_zone (end_time - 1, FALSE, zone);
    end_tm.tm_year = end_tt.year - 1900;
    end_tm.tm_mon = end_tt.month - 1;
    end_tm.tm_mday = end_tt.day;
    end_tm.tm_hour = end_tt.hour;
    end_tm.tm_min = end_tt.minute;
    end_tm.tm_sec = end_tt.second;
    end_tm.tm_isdst = -1;
    end_tm.tm_wday = time_day_of_week (end_tt.day, end_tt.month - 1,
                       end_tt.year);

    view = gnome_calendar_get_view (component_view->calendar);

    switch (view) {
    case GNOME_CAL_DAY_VIEW:
    case GNOME_CAL_WORK_WEEK_VIEW:
    case GNOME_CAL_WEEK_VIEW:
        if (start_tm.tm_year == end_tm.tm_year
            && start_tm.tm_mon == end_tm.tm_mon
            && start_tm.tm_mday == end_tm.tm_mday) {
            e_utf8_strftime (buffer, sizeof (buffer),
                  _("%A %d %b %Y"), &start_tm);
        } else if (start_tm.tm_year == end_tm.tm_year) {
            e_utf8_strftime (buffer, sizeof (buffer),
                  _("%a %d %b"), &start_tm);
            e_utf8_strftime (end_buffer, sizeof (end_buffer),
                  _("%a %d %b %Y"), &end_tm);
            strcat (buffer, " - ");
            strcat (buffer, end_buffer);
        } else {
            e_utf8_strftime (buffer, sizeof (buffer),
                  _("%a %d %b %Y"), &start_tm);
            e_utf8_strftime (end_buffer, sizeof (end_buffer),
                  _("%a %d %b %Y"), &end_tm);
            strcat (buffer, " - ");
            strcat (buffer, end_buffer);
        }
        break;
    case GNOME_CAL_MONTH_VIEW:
    case GNOME_CAL_LIST_VIEW:
        if (start_tm.tm_year == end_tm.tm_year) {
            if (start_tm.tm_mon == end_tm.tm_mon) {
                e_utf8_strftime (buffer, sizeof (buffer),
                      "%d", &start_tm);
                e_utf8_strftime (end_buffer, sizeof (end_buffer),
                      _("%d %b %Y"), &end_tm);
                strcat (buffer, " - ");
                strcat (buffer, end_buffer);
            } else {
                e_utf8_strftime (buffer, sizeof (buffer),
                      _("%d %b"), &start_tm);
                e_utf8_strftime (end_buffer, sizeof (end_buffer),
                      _("%d %b %Y"), &end_tm);
                strcat (buffer, " - ");
                strcat (buffer, end_buffer);
            }
        } else {
            e_utf8_strftime (buffer, sizeof (buffer),
                  _("%d %b %Y"), &start_tm);
            e_utf8_strftime (end_buffer, sizeof (end_buffer),
                  _("%d %b %Y"), &end_tm);
            strcat (buffer, " - ");
            strcat (buffer, end_buffer);
        }
        break;
    default:
        g_return_if_reached ();
    }

    e_info_label_set_info (component_view->info_label, _("Calendar"), buffer);
}

static void
calendar_dates_changed_cb (GnomeCalendar *calendar, CalendarComponentView *component_view)
{
    set_info (component_view);
}

static void
config_primary_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv = calendar_component->priv;

    if (priv->create_ecal) {
        g_object_unref (priv->create_ecal);
        priv->create_ecal = NULL;
    }
}

static void
config_tasks_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_task_memo_selection (data, E_CAL_SOURCE_TYPE_TODO);
}


static void
config_primary_tasks_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_primary_task_memo_selection (data, E_CAL_SOURCE_TYPE_TODO);
}

static void
config_memos_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_task_memo_selection (data, E_CAL_SOURCE_TYPE_JOURNAL);
}


static void
config_primary_memos_selection_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    update_primary_task_memo_selection (data, E_CAL_SOURCE_TYPE_JOURNAL);
}

/* Evolution::Component CORBA methods.  */
static void
impl_handleURI (PortableServer_Servant servant, const char *uri, CORBA_Environment *ev)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (bonobo_object_from_servant (servant));
    CalendarComponentPrivate *priv;
    GList *l;
    CalendarComponentView *view = NULL;
    char *src_uid = NULL;
    char *uid = NULL;
    char *rid = NULL;

    priv = calendar_component->priv;

    l = g_list_last (priv->views);
    if (!l)
        return;

    view = l->data;

    if (!strncmp (uri, "calendar:", 9)) {
        EUri *euri = e_uri_new (uri);
        const char *p;
        char *header, *content;
        size_t len, clen;
        time_t start = -1, end = -1;

        p = euri->query;
        if (p) {
            while (*p) {
                len = strcspn (p, "=&");

                /* If it's malformed, give up. */
                if (p[len] != '=')
                    break;

                header = (char *) p;
                header[len] = '\0';
                p += len + 1;

                clen = strcspn (p, "&");

                content = g_strndup (p, clen);

                if (!g_ascii_strcasecmp (header, "startdate")) {
                    start = time_from_isodate (content);
                } else if (!g_ascii_strcasecmp (header, "enddate")) {
                    end = time_from_isodate (content);
                } else if (!g_ascii_strcasecmp (header, "source-uid")) {
                    src_uid = g_strdup (content);
                } else if (!g_ascii_strcasecmp (header, "comp-uid")) {
                    uid = g_strdup (content);
                } else if (!g_ascii_strcasecmp (header, "comp-rid")) {
                    rid = g_strdup (content);
                }

                g_free (content);

                p += clen;
                if (*p == '&') {
                    p++;
                    if (!strcmp (p, "amp;"))
                        p += 4;
                }
            }

            if (start != -1) {

                if (end == -1)
                    end = start;
                    gnome_calendar_set_selected_time_range (view->calendar, start, end);
            }
            if (src_uid && uid)
                gnome_calendar_edit_appointment (view->calendar, src_uid, uid, rid);

            g_free (src_uid);
            g_free (uid);
            g_free (rid);
        }
        e_uri_free (euri);
    }
}

static void
impl_upgradeFromVersion (PortableServer_Servant servant,
             CORBA_short major,
             CORBA_short minor,
             CORBA_short revision,
             CORBA_Environment *ev)
{
    GError *err = NULL;
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (bonobo_object_from_servant (servant));

    if (!migrate_calendars (calendar_component, major, minor, revision, &err)) {
        GNOME_Evolution_Component_UpgradeFailed *failedex;

        failedex = GNOME_Evolution_Component_UpgradeFailed__alloc();
        failedex->what = CORBA_string_dup(_("Failed upgrading calendars."));
        failedex->why = CORBA_string_dup(err->message);
        CORBA_exception_set(ev, CORBA_USER_EXCEPTION, ex_GNOME_Evolution_Component_UpgradeFailed, failedex);
    }

    if (err)
        g_error_free(err);
}

static gboolean
selector_tree_drag_drop (GtkWidget *widget,
             GdkDragContext *context,
             int x,
             int y,
             guint time,
             CalendarComponent *component)
{
    GtkTreeViewColumn *column;
    int cell_x;
    int cell_y;
    GtkTreePath *path;
    GtkTreeModel *model;
    GtkTreeIter iter;
    gpointer data;

    if (!gtk_tree_view_get_path_at_pos  (GTK_TREE_VIEW (widget), x, y, &path,
                         &column, &cell_x, &cell_y))
        return FALSE;


    model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));

    if (!gtk_tree_model_get_iter (model, &iter, path)) {
        gtk_tree_path_free (path);
        return FALSE;
    }

    gtk_tree_model_get (model, &iter, 0, &data, -1);

    if (E_IS_SOURCE_GROUP (data)) {
        g_object_unref (data);
        gtk_tree_path_free (path);
        return FALSE;
    }

    gtk_tree_path_free (path);
    return TRUE;
}

static gboolean
selector_tree_drag_motion (GtkWidget *widget,
               GdkDragContext *context,
               int x,
               int y,
               guint time,
               gpointer user_data)
{
    GtkTreePath *path = NULL;
    gpointer data = NULL;
    GtkTreeViewDropPosition pos;
    GtkTreeModel *model;
    GtkTreeIter iter;
    GdkDragAction action = GDK_ACTION_DEFAULT;

    if (!gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
                        x, y, &path, &pos))
        goto finish;

    model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));

    if (!gtk_tree_model_get_iter (model, &iter, path))
        goto finish;

    gtk_tree_model_get (model, &iter, 0, &data, -1);

    if (E_IS_SOURCE_GROUP (data) || e_source_get_readonly (data))
        goto finish;

    gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget), path, GTK_TREE_VIEW_DROP_INTO_OR_BEFORE);
    action = context->suggested_action;

 finish:
    if (path)
        gtk_tree_path_free (path);
    if (data)
        g_object_unref (data);

    gdk_drag_status (context, action, time);
    return TRUE;
}

static gboolean
update_single_object (ECal *client, icalcomponent *icalcomp)
{
    char *uid;
    icalcomponent *tmp_icalcomp;

    uid = (char *) icalcomponent_get_uid (icalcomp);

    if (e_cal_get_object (client, uid, NULL, &tmp_icalcomp, NULL))
        return e_cal_modify_object (client, icalcomp, CALOBJ_MOD_ALL, NULL);

    return e_cal_create_object (client, icalcomp, &uid, NULL);
}

static gboolean
update_objects (ECal *client, icalcomponent *icalcomp)
{
    icalcomponent *subcomp;
    icalcomponent_kind kind;

    kind = icalcomponent_isa (icalcomp);
    if (kind == ICAL_VTODO_COMPONENT || kind == ICAL_VEVENT_COMPONENT)
        return update_single_object (client, icalcomp);
    else if (kind != ICAL_VCALENDAR_COMPONENT)
        return FALSE;

    subcomp = icalcomponent_get_first_component (icalcomp, ICAL_ANY_COMPONENT);
    while (subcomp) {
        gboolean success;

        kind = icalcomponent_isa (subcomp);
        if (kind == ICAL_VTIMEZONE_COMPONENT) {
            icaltimezone *zone;

            zone = icaltimezone_new ();
            icaltimezone_set_component (zone, subcomp);

            success = e_cal_add_timezone (client, zone, NULL);
            icaltimezone_free (zone, 1);
            if (!success)
                return success;
        } else if (kind == ICAL_VTODO_COMPONENT ||
               kind == ICAL_VEVENT_COMPONENT) {
            success = update_single_object (client, subcomp);
            if (!success)
                return success;
        }

        subcomp = icalcomponent_get_next_component (icalcomp, ICAL_ANY_COMPONENT);
    }

    return TRUE;
}

static void
selector_tree_drag_data_received (GtkWidget *widget,
                  GdkDragContext *context,
                  gint x,
                  gint y,
                  GtkSelectionData *data,
                  guint info,
                  guint time,
                  gpointer user_data)
{
    GtkTreePath *path = NULL;
    GtkTreeViewDropPosition pos;
    gpointer source = NULL;
    GtkTreeModel *model;
    GtkTreeIter iter;
    gboolean success = FALSE;
    icalcomponent *icalcomp = NULL;
    ECal *client = NULL;

    if (!gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
                        x, y, &path, &pos))
        goto finish;

    model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));

    if (!gtk_tree_model_get_iter (model, &iter, path))
        goto finish;


    gtk_tree_model_get (model, &iter, 0, &source, -1);

    if (E_IS_SOURCE_GROUP (source) || e_source_get_readonly (source))
        goto finish;

    icalcomp = icalparser_parse_string ((char *)data->data);

    if (icalcomp) {
        char * uid;

        /* FIXME deal with GDK_ACTION_ASK */
        if (context->action == GDK_ACTION_COPY) {
            uid = e_cal_component_gen_uid ();
            icalcomponent_set_uid (icalcomp, uid);
        }

        client = auth_new_cal_from_source (source,
                           E_CAL_SOURCE_TYPE_EVENT);

        if (client) {
            if (e_cal_open (client, TRUE, NULL)) {
                success = TRUE;
                update_objects (client, icalcomp);
            }

            g_object_unref (client);
        }

        icalcomponent_free (icalcomp);
    }

 finish:
    if (source)
        g_object_unref (source);
    if (path)
        gtk_tree_path_free (path);

    gtk_drag_finish (context, success, context->action == GDK_ACTION_MOVE, time);
}

static void
selector_tree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time, gpointer data)
{
    gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget),
                    NULL, GTK_TREE_VIEW_DROP_BEFORE);
}

static void
control_activate_cb (BonoboControl *control, gboolean activate, gpointer data)
{
    CalendarComponentView *component_view = data;

    if (activate) {
        BonoboUIComponent *uic;
        uic = bonobo_control_get_ui_component (component_view->view_control);

        e_user_creatable_items_handler_activate (component_view->creatable_items_handler, uic);
    }
}


static void
config_create_ecal_changed_cb (GConfClient *client, guint id, GConfEntry *entry, gpointer data)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv;

    priv = calendar_component->priv;

    g_object_unref (priv->create_ecal);
    priv->create_ecal = NULL;

    priv->notifications = g_list_remove (priv->notifications, GUINT_TO_POINTER (id));
}

static ECal *
setup_create_ecal (CalendarComponent *calendar_component, CalendarComponentView *component_view)
{
    CalendarComponentPrivate *priv;
    ESource *source = NULL;
    char *uid;
    guint not;

    priv = calendar_component->priv;

    /* Try to use the client from the calendar first to avoid re-opening things */
    if (component_view) {
        ECal *default_ecal;

        default_ecal = gnome_calendar_get_default_client (component_view->calendar);
        if (default_ecal)
            return default_ecal;
    }

    /* If there is an existing fall back, use that */
    if (priv->create_ecal)
        return priv->create_ecal;

    /* Get the current primary calendar, or try to set one if it doesn't already exist */
    uid = calendar_config_get_primary_calendar ();
    if (uid) {
        source = e_source_list_peek_source_by_uid (priv->source_list, uid);
        g_free (uid);

        priv->create_ecal = auth_new_cal_from_source (source, E_CAL_SOURCE_TYPE_EVENT);
    }

    if (!priv->create_ecal) {
        /* Try to create a default if there isn't one */
        source = e_source_list_peek_source_any (priv->source_list);
        if (source)
            priv->create_ecal = auth_new_cal_from_source (source, E_CAL_SOURCE_TYPE_EVENT);
    }

    if (priv->create_ecal) {
        icaltimezone *zone;

        zone = calendar_config_get_icaltimezone ();
        e_cal_set_default_timezone (priv->create_ecal, zone, NULL);

        if (!e_cal_open (priv->create_ecal, FALSE, NULL)) {
            GtkWidget *dialog;

            dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
                             GTK_MESSAGE_WARNING, GTK_BUTTONS_OK,
                             _("Unable to open the calendar '%s' for creating events and meetings"),
                             e_source_peek_name (source));

            gtk_dialog_run (GTK_DIALOG (dialog));
            gtk_widget_destroy (dialog);
            g_object_unref (priv->create_ecal);
            priv->create_ecal = NULL;

            return NULL;
        }

    } else {
        GtkWidget *dialog;

        dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
                         GTK_MESSAGE_WARNING, GTK_BUTTONS_OK,
                         _("There is no calendar available for creating events and meetings"));
        gtk_dialog_run (GTK_DIALOG (dialog));
        gtk_widget_destroy (dialog);

        return NULL;
    }

    /* Handle the fact it may change on us */
    not = calendar_config_add_notification_primary_calendar (config_create_ecal_changed_cb,
                                 calendar_component);
    priv->notifications = g_list_prepend (priv->notifications, GUINT_TO_POINTER (not));

    /* Save the primary source for use elsewhere */
    calendar_config_set_primary_calendar (e_source_peek_uid (source));

    return priv->create_ecal;
}

static gboolean
create_new_event (CalendarComponent *calendar_component, CalendarComponentView *component_view, gboolean is_allday, gboolean is_meeting)
{
    ECal *ecal;
    ECalendarView *view;

    ecal = setup_create_ecal (calendar_component, component_view);
    if (!ecal)
        return FALSE;

    if (component_view && (view = E_CALENDAR_VIEW (gnome_calendar_get_current_view_widget (component_view->calendar)))) {
        e_calendar_view_new_appointment_full (view, is_allday, is_meeting, TRUE);
    } else {
        ECalComponent *comp;
        CompEditor *editor;
        CompEditorFlags flags;

        flags = COMP_EDITOR_USER_ORG | COMP_EDITOR_NEW_ITEM;
        if (is_meeting)
            flags |= COMP_EDITOR_MEETING;
        comp = cal_comp_event_new_with_current_time (ecal, is_allday);
        editor = event_editor_new (ecal, flags);
        e_cal_component_commit_sequence (comp);

        comp_editor_edit_comp (editor, comp);
        if (is_meeting)
            event_editor_show_meeting (EVENT_EDITOR (editor));
        gtk_window_present (GTK_WINDOW (editor));

        e_comp_editor_registry_add (comp_editor_registry, editor, TRUE);
    }

    return TRUE;
}

static void
create_local_item_cb (EUserCreatableItemsHandler *handler, const char *item_type_name, void *data)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv;
    CalendarComponentView *component_view = NULL;
    GList *l;

    priv = calendar_component->priv;

    for (l = priv->views; l; l = l->next) {
        component_view = l->data;

        if (component_view->creatable_items_handler == handler)
            break;

        component_view = NULL;
    }

    if (strcmp (item_type_name, CREATE_EVENT_ID) == 0)
        create_new_event (calendar_component, component_view, FALSE, FALSE);
    else if (strcmp (item_type_name, CREATE_ALLDAY_EVENT_ID) == 0)
        create_new_event (calendar_component, component_view, TRUE, FALSE);
    else if (strcmp (item_type_name, CREATE_MEETING_ID) == 0)
        create_new_event (calendar_component, component_view, FALSE, TRUE);
    else if (strcmp (item_type_name, CREATE_CALENDAR_ID) == 0)
        calendar_setup_new_calendar (GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (component_view->calendar))));
}

static CalendarComponentView *
create_component_view (CalendarComponent *calendar_component)
{
    CalendarComponentPrivate *priv;
    CalendarComponentView *component_view;
    GtkWidget *selector_scrolled_window, *vbox, *vpane;
    GtkWidget *statusbar_widget;
    guint not;
    AtkObject *a11y;

    priv = calendar_component->priv;

    /* Create the calendar component view */
    component_view = g_new0 (CalendarComponentView, 1);

    vpane = gtk_vpaned_new ();
    g_signal_connect_after (vpane, "realize",
                G_CALLBACK(calcomp_vpane_realized), component_view);
    g_signal_connect (vpane, "button_release_event",
              G_CALLBACK (calcomp_vpane_resized), component_view);
    gtk_widget_show (vpane);
    /* Add the source lists */
    component_view->source_list = g_object_ref (priv->source_list);
    component_view->task_source_list = g_object_ref (priv->task_source_list);
    component_view->memo_source_list = g_object_ref (priv->memo_source_list);
    component_view->vpane_pos = calendar_config_get_tag_vpane_pos ();

    /* Create sidebar selector */
    component_view->source_selector = e_source_selector_new (calendar_component->priv->source_list);
    e_source_selector_set_select_new ((ESourceSelector *)component_view->source_selector, TRUE);
    a11y = gtk_widget_get_accessible (GTK_WIDGET (component_view->source_selector));
    atk_object_set_name (a11y, _("Calendar Source Selector"));

    g_signal_connect (component_view->source_selector, "drag-motion", G_CALLBACK (selector_tree_drag_motion),
              calendar_component);
    g_signal_connect (component_view->source_selector, "drag-leave", G_CALLBACK (selector_tree_drag_leave),
              calendar_component);
    g_signal_connect (component_view->source_selector, "drag-drop", G_CALLBACK (selector_tree_drag_drop),
              calendar_component);
    g_signal_connect (component_view->source_selector, "drag-data-received",
              G_CALLBACK (selector_tree_drag_data_received), calendar_component);

    gtk_drag_dest_set(component_view->source_selector, GTK_DEST_DEFAULT_ALL, drag_types,
              num_drag_types, GDK_ACTION_COPY | GDK_ACTION_MOVE);

    gtk_widget_show (component_view->source_selector);

    selector_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_container_add (GTK_CONTAINER (selector_scrolled_window), component_view->source_selector);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (selector_scrolled_window),
                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (selector_scrolled_window),
                         GTK_SHADOW_IN);
    gtk_widget_show (selector_scrolled_window);

    component_view->info_label = (EInfoLabel *)e_info_label_new("x-office-calendar");
    e_info_label_set_info (component_view->info_label, _("Calendars"), "");
    gtk_widget_show (GTK_WIDGET (component_view->info_label));

    vbox = gtk_vbox_new(FALSE, 0);
    gtk_box_pack_start(GTK_BOX (vbox), GTK_WIDGET (component_view->info_label), FALSE, TRUE, 0);
    gtk_box_pack_start(GTK_BOX (vbox), selector_scrolled_window, TRUE, TRUE, 0);
    gtk_widget_show (vbox);

    gtk_paned_pack1 (GTK_PANED (vpane), vbox, FALSE, FALSE);

    component_view->sidebar_control = bonobo_control_new (vpane);

    /* Create main view */
    component_view->view_control = control_factory_new_control ();
    if (!component_view->view_control) {
        /* FIXME free memory */

        return NULL;
    }

    component_view->calendar = (GnomeCalendar *) bonobo_control_get_widget (component_view->view_control);

    gtk_paned_pack2 (GTK_PANED (vpane), gnome_calendar_get_tag (component_view->calendar), FALSE, FALSE);

    /* This signal is thrown if backends die - we update the selector */
    g_signal_connect (component_view->calendar, "source_added",
              G_CALLBACK (source_added_cb), component_view);
    g_signal_connect (component_view->calendar, "source_removed",
              G_CALLBACK (source_removed_cb), component_view);

    /* Create status bar */
    statusbar_widget = e_task_bar_new ();
    component_view->activity_handler = e_activity_handler_new ();
    e_activity_handler_attach_task_bar (component_view->activity_handler, E_TASK_BAR (statusbar_widget));
    gtk_widget_show (statusbar_widget);

    component_view->statusbar_control = bonobo_control_new (statusbar_widget);

    gnome_calendar_set_activity_handler (component_view->calendar, component_view->activity_handler);

    /* connect after setting the initial selections, or we'll get unwanted calls
       to calendar_control_sensitize_calendar_commands */
    g_signal_connect (component_view->source_selector, "selection_changed",
              G_CALLBACK (source_selection_changed_cb), component_view);
    g_signal_connect (component_view->source_selector, "primary_selection_changed",
              G_CALLBACK (primary_source_selection_changed_cb), component_view);
    g_signal_connect (component_view->source_selector, "popup_event",
              G_CALLBACK (popup_event_cb), component_view);

    /* Set up the "new" item handler */
    component_view->creatable_items_handler = e_user_creatable_items_handler_new ("calendar", create_local_item_cb, calendar_component);
    g_signal_connect (component_view->view_control, "activate", G_CALLBACK (control_activate_cb), component_view);

    /* We use this to update the component information */
    set_info (component_view);
    g_signal_connect (component_view->calendar, "dates_shown_changed",
              G_CALLBACK (calendar_dates_changed_cb), component_view);

    /* Load the selection from the last run */
    update_selection (component_view);
    update_primary_selection (component_view);
    update_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_TODO);
    update_primary_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_TODO);
    update_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_JOURNAL);
    update_primary_task_memo_selection (component_view, E_CAL_SOURCE_TYPE_JOURNAL);

    /* If the tasks/memos selection changes elsewhere, update it for the mini
       mini tasks view sidebar */
    not = calendar_config_add_notification_tasks_selected (config_tasks_selection_changed_cb,
                                   component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    not = calendar_config_add_notification_memos_selected (config_memos_selection_changed_cb,
                                   component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    not = calendar_config_add_notification_primary_tasks (config_primary_tasks_selection_changed_cb,
                                  component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    not = calendar_config_add_notification_primary_memos (config_primary_memos_selection_changed_cb,
                                  component_view);
    component_view->notifications = g_list_prepend (component_view->notifications, GUINT_TO_POINTER (not));

    return component_view;
}

static void
destroy_component_view (CalendarComponentView *component_view)
{
    GList *l;

    if (component_view->source_list)
        g_object_unref (component_view->source_list);

    if (component_view->task_source_list)
        g_object_unref (component_view->task_source_list);

    if (component_view->memo_source_list)
        g_object_unref (component_view->memo_source_list);

    if (component_view->source_selection)
        e_source_selector_free_selection (component_view->source_selection);

    for (l = component_view->notifications; l; l = l->next)
        calendar_config_remove_notification (GPOINTER_TO_UINT (l->data));
    g_list_free (component_view->notifications);

    if (component_view->creatable_items_handler)
        g_object_unref (component_view->creatable_items_handler);

    if (component_view->activity_handler)
        g_object_unref (component_view->activity_handler);

    if (component_view->task_source_selection) {
        g_slist_foreach (component_view->task_source_selection, (GFunc) g_free, NULL);
        g_slist_free (component_view->task_source_selection);
    }

    if (component_view->memo_source_selection) {
        g_slist_foreach (component_view->memo_source_selection, (GFunc) g_free, NULL);
        g_slist_free (component_view->memo_source_selection);
    }

    g_free (component_view);
}

static void
view_destroyed_cb (gpointer data, GObject *where_the_object_was)
{
    CalendarComponent *calendar_component = data;
    CalendarComponentPrivate *priv;
    GList *l;

    priv = calendar_component->priv;

    for (l = priv->views; l; l = l->next) {
        CalendarComponentView *component_view = l->data;

        if (G_OBJECT (component_view->view_control) == where_the_object_was) {
            priv->views = g_list_remove (priv->views, component_view);
            destroy_component_view (component_view);

            break;
        }
    }
}

static GNOME_Evolution_ComponentView
impl_createView (PortableServer_Servant servant,
         GNOME_Evolution_ShellView parent,
         CORBA_Environment *ev)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (bonobo_object_from_servant (servant));
    CalendarComponentPrivate *priv;
    CalendarComponentView *component_view;
    EComponentView *ecv;

    priv = calendar_component->priv;

    /* Create the calendar component view */
    component_view = create_component_view (calendar_component);
    if (!component_view) {
        /* FIXME Should we describe the problem in a control? */
        bonobo_exception_set (ev, ex_GNOME_Evolution_Component_Failed);

        return CORBA_OBJECT_NIL;
    }

    g_object_weak_ref (G_OBJECT (component_view->view_control), view_destroyed_cb, calendar_component);
    priv->views = g_list_append (priv->views, component_view);

    /* TODO: Make CalendarComponentView just subclass EComponentView */
    ecv = e_component_view_new_controls (parent, "calendar", component_view->sidebar_control,
                         component_view->view_control, component_view->statusbar_control);

    return BONOBO_OBJREF(ecv);
}


static GNOME_Evolution_CreatableItemTypeList *
impl__get_userCreatableItems (PortableServer_Servant servant,
                  CORBA_Environment *ev)
{
    GNOME_Evolution_CreatableItemTypeList *list = GNOME_Evolution_CreatableItemTypeList__alloc ();

    list->_length  = 4;
    list->_maximum = list->_length;
    list->_buffer  = GNOME_Evolution_CreatableItemTypeList_allocbuf (list->_length);

    CORBA_sequence_set_release (list, FALSE);

    list->_buffer[0].id = CREATE_EVENT_ID;
    list->_buffer[0].description = _("New appointment");
    list->_buffer[0].menuDescription = (char *) C_("New", "_Appointment");
    list->_buffer[0].tooltip = _("Create a new appointment");
    list->_buffer[0].menuShortcut = 'a';
    list->_buffer[0].iconName = "appointment-new";
    list->_buffer[0].type = GNOME_Evolution_CREATABLE_OBJECT;

    list->_buffer[1].id = CREATE_MEETING_ID;
    list->_buffer[1].description = _("New meeting");
    list->_buffer[1].menuDescription = (char *) C_("New", "M_eeting");
    list->_buffer[1].tooltip = _("Create a new meeting request");
    list->_buffer[1].menuShortcut = 'e';
    list->_buffer[1].iconName = "stock_new-meeting";
    list->_buffer[1].type = GNOME_Evolution_CREATABLE_OBJECT;

    list->_buffer[2].id = CREATE_ALLDAY_EVENT_ID;
    list->_buffer[2].description = _("New all day appointment");
    list->_buffer[2].menuDescription = (char *) C_("New", "All Day A_ppointment");
    list->_buffer[2].tooltip = _("Create a new all-day appointment");
    list->_buffer[2].menuShortcut = '\0';
    list->_buffer[2].iconName = "stock_new-24h-appointment";
    list->_buffer[2].type = GNOME_Evolution_CREATABLE_OBJECT;

    list->_buffer[3].id = CREATE_CALENDAR_ID;
    list->_buffer[3].description = _("New calendar");
    list->_buffer[3].menuDescription = (char *) C_("New", "Cale_ndar");
    list->_buffer[3].tooltip = _("Create a new calendar");
    list->_buffer[3].menuShortcut = '\0';
    list->_buffer[3].iconName = "x-office-calendar";
    list->_buffer[3].type = GNOME_Evolution_CREATABLE_FOLDER;

    return list;
}

static void
impl_requestCreateItem (PortableServer_Servant servant,
            const CORBA_char *item_type_name,
            CORBA_Environment *ev)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (bonobo_object_from_servant (servant));
    gboolean result = FALSE;

    if (strcmp (item_type_name, CREATE_EVENT_ID) == 0)
        result = create_new_event (calendar_component, NULL, FALSE, FALSE);
    else if (strcmp (item_type_name, CREATE_ALLDAY_EVENT_ID) == 0)
        result = create_new_event (calendar_component, NULL, TRUE, FALSE);
    else if (strcmp (item_type_name, CREATE_MEETING_ID) == 0)
        result = create_new_event (calendar_component, NULL, FALSE, TRUE);
    else if (strcmp (item_type_name, CREATE_CALENDAR_ID) == 0)
        /* FIXME Should we use the last opened window? */
        calendar_setup_new_calendar (NULL);
    else
        bonobo_exception_set (ev, ex_GNOME_Evolution_Component_UnknownType);

    if (!result)
        bonobo_exception_set (ev, ex_GNOME_Evolution_Component_Failed);
}

/* GObject methods.  */

static void
impl_dispose (GObject *object)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (object);
    CalendarComponentPrivate *priv = calendar_component->priv;
    GList *l;

    if (priv->source_list != NULL) {
        g_object_unref (priv->source_list);
        priv->source_list = NULL;
    }

    if (priv->gconf_client != NULL) {
        g_object_unref (priv->gconf_client);
        priv->gconf_client = NULL;
    }

    if (priv->create_ecal) {
        g_object_unref (priv->create_ecal);
        priv->create_ecal = NULL;
    }

    for (l = priv->views; l; l = l->next) {
        CalendarComponentView *component_view = l->data;

        g_object_weak_unref (G_OBJECT (component_view->view_control), view_destroyed_cb, calendar_component);
    }
    g_list_free (priv->views);
    priv->views = NULL;

    for (l = priv->notifications; l; l = l->next)
        calendar_config_remove_notification (GPOINTER_TO_UINT (l->data));
    g_list_free (priv->notifications);
    priv->notifications = NULL;

    (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

static void
impl_finalize (GObject *object)
{
    CalendarComponentPrivate *priv = CALENDAR_COMPONENT (object)->priv;
    GList *l;

    for (l = priv->views; l; l = l->next) {
        CalendarComponentView *component_view = l->data;

        destroy_component_view (component_view);
    }
    g_list_free (priv->views);

    g_free (priv->base_directory);
    g_free (priv->config_directory);
    g_free (priv);

    (* G_OBJECT_CLASS (parent_class)->finalize) (object);
}

static void
calendar_component_class_init (CalendarComponentClass *class)
{
    POA_GNOME_Evolution_Component__epv *epv = &class->epv;
    GObjectClass *object_class = G_OBJECT_CLASS (class);

    parent_class = g_type_class_peek_parent (class);

    epv->upgradeFromVersion      = impl_upgradeFromVersion;
    epv->createView              = impl_createView;
    epv->_get_userCreatableItems = impl__get_userCreatableItems;
    epv->requestCreateItem       = impl_requestCreateItem;
    epv->handleURI               = impl_handleURI;

    object_class->dispose  = impl_dispose;
    object_class->finalize = impl_finalize;
}

static void
calendar_component_init (CalendarComponent *component)
{
    CalendarComponentPrivate *priv;
    guint not;

    priv = g_new0 (CalendarComponentPrivate, 1);

    priv->base_directory = g_build_filename (e_get_user_data_dir (), "calendar", NULL);
    priv->config_directory = g_build_filename (priv->base_directory, "config", NULL);

    /* EPFIXME: Should use a custom one instead?  Also we should add
     * calendar_component_peek_gconf_client().  */
    priv->gconf_client = gconf_client_get_default ();

    not = calendar_config_add_notification_primary_calendar (config_primary_selection_changed_cb,
                                 component);
    priv->notifications = g_list_prepend (priv->notifications, GUINT_TO_POINTER (not));

    component->priv = priv;
    ensure_sources (component);

    if (!e_cal_get_sources (&priv->task_source_list, E_CAL_SOURCE_TYPE_TODO, NULL))
        ;
    if (!e_cal_get_sources (&priv->memo_source_list, E_CAL_SOURCE_TYPE_JOURNAL, NULL))
        ;
}


/* Public API.  */

CalendarComponent *
calendar_component_peek (void)
{
    static CalendarComponent *component = NULL;

    if (component == NULL) {
        component = g_object_new (calendar_component_get_type (), NULL);

        if (g_mkdir_with_parents (calendar_component_peek_config_directory (component), 0777) != 0) {
            g_warning (G_STRLOC ": Cannot create directory %s: %s",
                   calendar_component_peek_config_directory (component),
                   g_strerror (errno));
            g_object_unref (component);
            component = NULL;
        }
    }

    return component;
}

const char *
calendar_component_peek_base_directory (CalendarComponent *component)
{
    return component->priv->base_directory;
}

const char *
calendar_component_peek_config_directory (CalendarComponent *component)
{
    return component->priv->config_directory;
}

ESourceList *
calendar_component_peek_source_list (CalendarComponent *component)
{
    return component->priv->source_list;
}

BONOBO_TYPE_FUNC_FULL (CalendarComponent, GNOME_Evolution_Component, PARENT_TYPE, calendar_component)