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) 2003  Ettore Perazzoli
 *
 * 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.
 *
 * Author: Ettore Perazzoli <ettore@ximian.com>
 */

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

#include <string.h>

#include "calendar-component.h"
#include "calendar-commands.h"
#include "gnome-cal.h"
#include "migration.h"
#include "dialogs/new-calendar.h"

#include "widgets/misc/e-source-selector.h"

#include <bonobo/bonobo-control.h>
#include <bonobo/bonobo-i18n.h>
#include <gtk/gtkimage.h>
#include <gtk/gtkimagemenuitem.h>
#include <gal/util/e-util.h>

#include <errno.h>


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


struct _CalendarComponentPrivate {
    char *config_directory;

    GConfClient *gconf_client;
    ESourceList *source_list;
    GSList *source_selection;
    
    GnomeCalendar *calendar;
};


/* Utility functions.  */

static void
add_uri_for_source (ESource *source, GnomeCalendar *calendar)
{
    char *uri = e_source_get_uri (source);

    gnome_calendar_add_event_uri (calendar, uri);
    g_free (uri);
}

static void
remove_uri_for_source (ESource *source, GnomeCalendar *calendar)
{
    char *uri = e_source_get_uri (source);

    gnome_calendar_remove_event_uri (calendar, uri);
    g_free (uri);
}

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 void
update_uris_for_selection (ESourceSelector *selector, CalendarComponent *calendar_component)
{
    CalendarComponentPrivate *priv;
    GSList *selection, *l;
    
    selection = e_source_selector_get_selection (selector);

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

        if (!is_in_selection (selection, old_selected_source))
            remove_uri_for_source (old_selected_source, priv->calendar);
    }   
    
    for (l = selection; l; l = l->next) {
        ESource *selected_source = l->data;
        
        add_uri_for_source (selected_source, priv->calendar);
    }

    e_source_selector_free_selection (priv->source_selection);
    priv->source_selection = selection;
}

/* Callbacks.  */
static void
add_popup_menu_item (GtkMenu *menu, const char *label, const char *pixmap,
             GCallback callback, gpointer user_data)
{
    GtkWidget *item, *image;

    if (pixmap) {
        item = gtk_image_menu_item_new_with_label (label);

        /* load the image */
        image = gtk_image_new_from_file (pixmap);
        if (!image)
            image = gtk_image_new_from_stock (pixmap, GTK_ICON_SIZE_MENU);

        if (image)
            gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
    } else {
        item = gtk_menu_item_new_with_label (label);
    }

    if (callback)
        g_signal_connect (G_OBJECT (item), "activate", callback, user_data);

    gtk_menu_append (menu, item);
    gtk_widget_show (item);
}

static void
new_calendar_cb (GtkWidget *widget, ESourceSelector *selector)
{
    new_calendar_dialog (GTK_WINDOW (gtk_widget_get_toplevel (widget)));
}

static void
fill_popup_menu_callback (ESourceSelector *selector, GtkMenu *menu, CalendarComponent *comp)
{
    add_popup_menu_item (menu, _("New Calendar"), NULL, G_CALLBACK (new_calendar_cb), selector);
}

static void
source_selection_changed_callback (ESourceSelector *selector, 
                   CalendarComponent *calendar_component)
{
    update_uris_for_selection (selector, calendar_component);
}

static void
primary_source_selection_changed_callback (ESourceSelector *selector,
                       CalendarComponent *calendar_component)
{
    CalendarComponentPrivate *priv;
    ESource *source;
    char *uri;

    priv = calendar_component->priv;
    
    source = e_source_selector_peek_primary_selection (selector);
    if (!source)
        return;

    /* Set the default */
    uri = e_source_get_uri (source);
    gnome_calendar_set_default_uri (priv->calendar, uri);
    g_free (uri);

}

/* GObject methods.  */

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

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

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

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

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

    g_free (priv->config_directory);

    g_free (priv);

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


/* Evolution::Component CORBA methods.  */

static void
control_activate_cb (BonoboControl *control, gboolean activate, gpointer data)
{
    GnomeCalendar *gcal;

    gcal = GNOME_CALENDAR (data);

    if (activate)
        calendar_control_activate (control, gcal);
    else
        calendar_control_deactivate (control, gcal);
}

static void
impl_createControls (PortableServer_Servant servant,
             Bonobo_Control *corba_sidebar_control,
             Bonobo_Control *corba_view_control,
             CORBA_Environment *ev)
{
    CalendarComponent *calendar_component = CALENDAR_COMPONENT (bonobo_object_from_servant (servant));
    CalendarComponentPrivate *priv;
    GtkWidget *selector;
    GtkWidget *selector_scrolled_window;
    BonoboControl *sidebar_control;
    BonoboControl *view_control;

    priv = calendar_component->priv;
    
    /* Create sidebar selector */
    selector = e_source_selector_new (calendar_component->priv->source_list);
    gtk_widget_show (selector);

    selector_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_container_add (GTK_CONTAINER (selector_scrolled_window), 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);

    sidebar_control = bonobo_control_new (selector_scrolled_window);

    /* Create main calendar view */
    /* FIXME Instead of returning, we should make a control with a
     * label describing the problem */
    priv->calendar = GNOME_CALENDAR (gnome_calendar_new ());
    if (!priv->calendar) {
        g_warning (G_STRLOC ": could not create the calendar widget!");
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_Component_Failed,
                     NULL);
        return;
    }
    
    gtk_widget_show (GTK_WIDGET (priv->calendar));

    view_control = bonobo_control_new (GTK_WIDGET (priv->calendar));
    if (!view_control) {
        g_warning (G_STRLOC ": could not create the control!");
        CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_Component_Failed,
                     NULL);
        return;
    }
    g_object_set_data (G_OBJECT (priv->calendar), "control", view_control);

    g_signal_connect (view_control, "activate", G_CALLBACK (control_activate_cb), priv->calendar);

    g_signal_connect_object (selector, "selection_changed",
                 G_CALLBACK (source_selection_changed_callback), 
                 G_OBJECT (calendar_component), 0);
    g_signal_connect_object (selector, "primary_selection_changed",
                 G_CALLBACK (primary_source_selection_changed_callback), 
                 G_OBJECT (calendar_component), 0);
    g_signal_connect_object (selector, "fill_popup_menu",
                 G_CALLBACK (fill_popup_menu_callback),
                 G_OBJECT (calendar_component), 0);

    update_uris_for_selection (E_SOURCE_SELECTOR (selector), calendar_component);

    *corba_sidebar_control = CORBA_Object_duplicate (BONOBO_OBJREF (sidebar_control), ev);
    *corba_view_control = CORBA_Object_duplicate (BONOBO_OBJREF (view_control), ev);
}


/* Initialization.  */

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->createControls = impl_createControls;

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

static void
calendar_component_init (CalendarComponent *component)
{
    CalendarComponentPrivate *priv;
    GSList *groups;

    priv = g_new0 (CalendarComponentPrivate, 1);

    priv->config_directory = g_build_filename (g_get_home_dir (),
                           ".evolution", "calendar", "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 ();

    priv->source_list = e_source_list_new_for_gconf (priv->gconf_client,
                             "/apps/evolution/calendar/sources");

    /* create default calendars if there are no groups */
    groups = e_source_list_peek_groups (priv->source_list);
    if (!groups) {
        ESourceGroup *group;
        ESource *source;
        char *base_uri, *new_dir;

        /* create the local source group */
        base_uri = g_build_filename (g_get_home_dir (),
                         "/.evolution/calendar/local/OnThisComputer/",
                         NULL);
        group = e_source_group_new (_("On This Computer"), base_uri);
        e_source_list_add_group (priv->source_list, group, -1);

        /* migrate calendars from older setup */
        if (!migrate_old_calendars (group)) {
            /* create default calendars */
            new_dir = g_build_filename (base_uri, "Personal/", NULL);
            if (!e_mkdir_hier (new_dir, 0700)) {
                source = e_source_new (_("Personal"), "Personal");
                e_source_group_add_source (group, source, -1);
            }
            g_free (new_dir);

            new_dir = g_build_filename (base_uri, "Work/", NULL);
            if (!e_mkdir_hier (new_dir, 0700)) {
                source = e_source_new (_("Work"), "Work");
                e_source_group_add_source (group, source, -1);
            }
            g_free (new_dir);
        }

        g_free (base_uri);

        /* create the remote source group */
        group = e_source_group_new (_("On The Web"), "webcal://");
        e_source_list_add_group (priv->source_list, group, -1);
    }

    component->priv = priv;
}


/* Public API.  */

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

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

        if (e_mkdir_hier (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_config_directory (CalendarComponent *component)
{
    return component->priv->config_directory;
}


BONOBO_TYPE_FUNC_FULL (CalendarComponent, GNOME_Evolution_Component, PARENT_TYPE, calendar_component)