source: trunk/third/evolution/shell/e-shortcuts-view-model.c @ 18142

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-shortcuts-view-model.c
 *
 * Copyright (C) 2000  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.
 *
 * Author: Ettore Perazzoli
 */

/* FIXME.  This really sucks.  We are using the model/view approach in the
   dumbest possible way.  */

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

#include "e-shortcuts-view-model.h"

#include "e-icon-factory.h"

#include <glib.h>
#include <gtk/gtksignal.h>
#include <libgnome/gnome-i18n.h>

#include <gal/util/e-util.h>


#define PARENT_TYPE e_shortcut_model_get_type ()
static EShortcutModelClass *parent_class = NULL;

struct _EShortcutsViewModelPrivate {
        EShortcuts *shortcuts;
};


/* Utility functions.  */

static GdkPixbuf *
get_icon_for_item (EShortcutsViewModel *shortcuts_view_model,
                   const EShortcutItem *item,
                   gboolean want_mini)
{
        EShortcutsViewModelPrivate *priv;

        priv = shortcuts_view_model->priv;

        if (item->custom_icon_name != NULL)
                return e_icon_factory_get_icon (item->custom_icon_name, want_mini);

        if (item->type != NULL) {
                EStorageSet *storage_set;
                EFolderTypeRegistry *folder_type_registry;

                storage_set = e_shell_get_storage_set (e_shortcuts_get_shell (priv->shortcuts));
                folder_type_registry = e_storage_set_get_folder_type_registry (storage_set);

                return e_folder_type_registry_get_icon_for_type (folder_type_registry,
                                                                 item->type,
                                                                 want_mini);
        }

        return NULL;
}


/* View initialization.  */

static char *
get_name_with_unread (const EShortcutItem *item)
{
        if (item->unread_count > 0)
                return g_strdup_printf ("%s (%d)", item->name, item->unread_count);
        else
                return g_strdup (item->name);
}

static void
load_group_into_model (EShortcutsViewModel *shortcuts_view_model,
                       int group_num)
{
        EShortcutsViewModelPrivate *priv;
        const GSList *shortcut_list;
        const GSList *p;

        priv = shortcuts_view_model->priv;

        shortcut_list = e_shortcuts_get_shortcuts_in_group (priv->shortcuts, group_num);
        if (shortcut_list == NULL)
                return;

        for (p = shortcut_list; p != NULL; p = p->next) {
                const EShortcutItem *item;
                char *name_with_unread;

                item = (const EShortcutItem *) p->data;
                name_with_unread = get_name_with_unread (item);

                e_shortcut_model_add_item (E_SHORTCUT_MODEL (shortcuts_view_model),
                                           group_num, -1,
                                           item->uri,
                                           name_with_unread,
                                           get_icon_for_item (shortcuts_view_model, item, FALSE));

                g_free (name_with_unread);
        }
}

static void
load_all_shortcuts_into_model (EShortcutsViewModel *shortcuts_view_model)
{
        EShortcutsViewModelPrivate *priv;
        const GSList *group_titles;
        const GSList *p;
        int group_num;

        priv = shortcuts_view_model->priv;

        group_titles = e_shortcuts_get_group_titles (priv->shortcuts);

        for (p = group_titles; p != NULL; p = p->next) {
                const char *group_title;

                group_title = (const char *) p->data;
                group_num = e_shortcut_model_add_group (E_SHORTCUT_MODEL (shortcuts_view_model), -1, group_title);

                load_group_into_model (shortcuts_view_model, group_num);
        }
}


/* EShortcuts callbacks.  */

static void
shortcuts_new_group_cb (EShortcuts *shortcuts,
                        int group_num,
                        void *data)
{
        EShortcutsViewModel *shortcuts_view_model;
        EShortcutsViewModelPrivate *priv;
        const char *title;

        shortcuts_view_model = E_SHORTCUTS_VIEW_MODEL (data);
        priv = shortcuts_view_model->priv;

        title = e_shortcuts_get_group_title (priv->shortcuts, group_num);
        e_shortcut_model_add_group (E_SHORTCUT_MODEL (shortcuts_view_model), group_num, title);
}

static void
shortcuts_remove_group_cb (EShortcuts *shortcuts,
                           int group_num,
                           void *data)
{
        EShortcutsViewModel *shortcuts_view_model;

        shortcuts_view_model = E_SHORTCUTS_VIEW_MODEL (data);
        e_shortcut_model_remove_group (E_SHORTCUT_MODEL (shortcuts_view_model), group_num);
}

static void
shortcuts_rename_group_cb (EShortcuts *shortcuts,
                           int group_num,
                           const char *new_title,
                           void *data)
{
        EShortcutsViewModel *shortcuts_view_model;

        shortcuts_view_model = E_SHORTCUTS_VIEW_MODEL (data);

        /* FIXME: Ideally there should be an
           e_shortcut_model_rename_group(), removing then re-add
           actually causes a flip to the next group, which we work
           around in e-shortcuts-view.c */
        e_shortcut_model_remove_group (E_SHORTCUT_MODEL (shortcuts_view_model), group_num);
        e_shortcut_model_add_group (E_SHORTCUT_MODEL (shortcuts_view_model), group_num, new_title);
        load_group_into_model (shortcuts_view_model, group_num);
}

static void
shortcuts_new_shortcut_cb (EShortcuts *shortcuts,
                           int group_num,
                           int item_num,
                           void *data)
{
        EShortcutsViewModel *shortcuts_view_model;
        EShortcutsViewModelPrivate *priv;
        const EShortcutItem *shortcut_item;
        char *name_with_unread;

        shortcuts_view_model = E_SHORTCUTS_VIEW_MODEL (data);
        priv = shortcuts_view_model->priv;

        shortcut_item = e_shortcuts_get_shortcut (priv->shortcuts, group_num, item_num);
        g_assert (shortcut_item != NULL);

        name_with_unread = get_name_with_unread (shortcut_item);
        e_shortcut_model_add_item (E_SHORTCUT_MODEL (shortcuts_view_model),
                                   group_num, item_num,
                                   shortcut_item->uri,
                                   name_with_unread,
                                   get_icon_for_item (shortcuts_view_model, shortcut_item, FALSE));

        g_free (name_with_unread);
}

static void
shortcuts_remove_shortcut_cb (EShortcuts *shortcuts,
                              int group_num,
                              int item_num,
                              void *data)
{
        EShortcutsViewModel *shortcuts_view_model;

        shortcuts_view_model = E_SHORTCUTS_VIEW_MODEL (data);
        e_shortcut_model_remove_item (E_SHORTCUT_MODEL (shortcuts_view_model), group_num, item_num);
}

static void
shortcuts_update_shortcut_cb (EShortcuts *shortcuts,
                              int group_num,
                              int item_num,
                              void *data)
{
        EShortcutsViewModel *shortcuts_view_model;
        EShortcutsViewModelPrivate *priv;
        const EShortcutItem *shortcut_item;
        char *name_with_unread;

        shortcuts_view_model = E_SHORTCUTS_VIEW_MODEL (data);
        priv = shortcuts_view_model->priv;

        shortcut_item = e_shortcuts_get_shortcut (priv->shortcuts, group_num, item_num);
        g_assert (shortcut_item != NULL);

        name_with_unread = get_name_with_unread (shortcut_item);
        e_shortcut_model_update_item (E_SHORTCUT_MODEL (shortcuts_view_model),
                                      group_num, item_num,
                                      shortcut_item->uri,
                                      name_with_unread,
                                      get_icon_for_item (shortcuts_view_model, shortcut_item, FALSE));

        g_free (name_with_unread);
}


/* GtkObject methods.  */

static void
impl_destroy (GtkObject *object)
{
        EShortcutsViewModel *view_model;
        EShortcutsViewModelPrivate *priv;

        view_model = E_SHORTCUTS_VIEW_MODEL (object);
        priv = view_model->priv;

        g_free (priv);

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


static void
class_init (EShortcutsViewModelClass *klass)
{
        GtkObjectClass *object_class;

        object_class = GTK_OBJECT_CLASS (klass);
        object_class->destroy = impl_destroy;

        parent_class = gtk_type_class (e_shortcut_model_get_type ());
}

static void
init (EShortcutsViewModel *shortcuts_view_model)
{
        EShortcutsViewModelPrivate *priv;

        priv = g_new (EShortcutsViewModelPrivate, 1);
        priv->shortcuts      = NULL;

        shortcuts_view_model->priv = priv;
}


void
e_shortcuts_view_model_construct (EShortcutsViewModel *model,
                                  EShortcuts *shortcuts)
{
        EShortcutsViewModelPrivate *priv;

        g_return_if_fail (model != NULL);
        g_return_if_fail (E_IS_SHORTCUTS_VIEW_MODEL (model));
        g_return_if_fail (shortcuts != NULL);
        g_return_if_fail (E_IS_SHORTCUTS (shortcuts));

        priv = model->priv;
        g_return_if_fail (priv->shortcuts == NULL);

        priv->shortcuts = shortcuts;

        load_all_shortcuts_into_model (model);

        gtk_signal_connect_while_alive (GTK_OBJECT (priv->shortcuts),
                                        "new_group", GTK_SIGNAL_FUNC (shortcuts_new_group_cb), model,
                                        GTK_OBJECT (model));
        gtk_signal_connect_while_alive (GTK_OBJECT (priv->shortcuts),
                                        "remove_group", GTK_SIGNAL_FUNC (shortcuts_remove_group_cb), model,
                                        GTK_OBJECT (model));
        gtk_signal_connect_while_alive (GTK_OBJECT (priv->shortcuts),
                                        "rename_group", GTK_SIGNAL_FUNC (shortcuts_rename_group_cb), model,
                                        GTK_OBJECT (model));
        gtk_signal_connect_while_alive (GTK_OBJECT (priv->shortcuts),
                                        "new_shortcut", GTK_SIGNAL_FUNC (shortcuts_new_shortcut_cb), model,
                                        GTK_OBJECT (model));
        gtk_signal_connect_while_alive (GTK_OBJECT (priv->shortcuts),
                                        "remove_shortcut", GTK_SIGNAL_FUNC (shortcuts_remove_shortcut_cb), model,
                                        GTK_OBJECT (model));
        gtk_signal_connect_while_alive (GTK_OBJECT (priv->shortcuts),
                                        "update_shortcut", GTK_SIGNAL_FUNC (shortcuts_update_shortcut_cb), model,
                                        GTK_OBJECT (model));
}

EShortcutsViewModel *
e_shortcuts_view_model_new (EShortcuts *shortcuts)
{
        EShortcutsViewModel *new;

        g_return_val_if_fail (shortcuts != NULL, NULL);
        g_return_val_if_fail (E_IS_SHORTCUTS (shortcuts), NULL);

        new = gtk_type_new (e_shortcuts_view_model_get_type ());

        e_shortcuts_view_model_construct (new, shortcuts);

        return new;
}


E_MAKE_TYPE (e_shortcuts_view_model, "EShortcutsViewModel", EShortcutsViewModel, class_init, init, PARENT_TYPE)