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path: root/shell/e-shortcuts.c
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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-shortcuts.c
 *
 * Copyright (C) 2000, 2001 Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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
 */

/* The shortcut list goes like this:

   <?xml version="1.0"?>
   <shortcuts>
           <group title="Evolution shortcuts">
               <item name="Inbox" type="mail">evolution:/local/Inbox</item>
               <item name="Trash" type="vtrash">evolution:/local/Trash</item>
               <item name="Calendar" type="calendar">evolution:/local/Calendar</item>
       </group>

       <group title="Personal shortcuts">
               <item>evolution:/local/Personal</item>
       </group>
   </shortcuts>

   FIXME: Do we want to use a namespace for this?
 */

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

#include "e-shortcuts.h"

#include <string.h>

#include <glib.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkobject.h>
#include <gtk/gtksignal.h>
#include <gtk/gtktypeutils.h>

#include <gnome-xml/parser.h>
#include <gnome-xml/xmlmemory.h>

#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <gal/util/e-util.h>
#include <gal/util/e-xml-utils.h>
#include <gal/widgets/e-unicode.h>
#include <gal/shortcut-bar/e-shortcut-bar.h>

#include "e-shortcuts-view.h"

#include "e-shell-constants.h"


#define PARENT_TYPE GTK_TYPE_OBJECT
static GtkObjectClass *parent_class = NULL;

struct _ShortcutGroup {
    /* Title of the group.  */
    char *title;

    /* A list of shortcuts.  */
    GSList *shortcuts;
};
typedef struct _ShortcutGroup ShortcutGroup;

struct _EShortcutsPrivate {
    /* Name of the file associated with these shortcuts.  Changes in the shortcuts
           will update this file automatically.  */
    char *file_name;

    /* ID of the idle function that will be called to save the shortcuts when they are
           changed.  */
    int save_idle_id;

    /* Whether these shortcuts need to be saved to disk.  */
    gboolean dirty;

    /* The storage set to which these shortcuts are associated.  */
    EStorageSet *storage_set;

    /* The folder type registry.  */
    EFolderTypeRegistry *folder_type_registry;

    /* Total number of groups.  */
    int num_groups;

    /* A list of ShortcutGroups.  */
    GSList *groups;

    /* A list of ShortcutViews.  */
    GSList *views;
};

enum {
    NEW_GROUP,
    REMOVE_GROUP,
    RENAME_GROUP,
    NEW_SHORTCUT,
    REMOVE_SHORTCUT,
    UPDATE_SHORTCUT,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };


static void make_dirty (EShortcuts *shortcuts);


static EShortcutItem *
shortcut_item_new (const char *uri,
           const char *name,
           int unread_count,
           const char *type)
{
    EShortcutItem *new;

    if (name == NULL)
        name = g_basename (uri);

    new = g_new (EShortcutItem, 1);
    new->uri  = g_strdup (uri);
    new->name = g_strdup (name);
    new->type = g_strdup (type);
    new->unread_count = unread_count;

    return new;
}

static gboolean
shortcut_item_update (EShortcutItem *shortcut_item,
              const char *uri,
              const char *name,
              int unread_count,
              const char *type)
{
    gboolean changed = FALSE;

    if (name == NULL)
        name = g_basename (uri);

    if (shortcut_item->uri == NULL || uri == NULL ||
        strcmp (shortcut_item->uri, uri) != 0) {
        g_free (shortcut_item->uri);
        shortcut_item->uri  = g_strdup (uri);
        changed = TRUE;
    }

    if (shortcut_item->name == NULL || name == NULL ||
        strcmp (shortcut_item->name, name) != 0) {
        g_free (shortcut_item->name);
        shortcut_item->name  = g_strdup (name);
        changed = TRUE;
    }

    if (shortcut_item->unread_count != unread_count) {
        shortcut_item->unread_count = unread_count;
        changed = FALSE;
    }

    if (shortcut_item->type == NULL || type == NULL ||
        strcmp (shortcut_item->type, type) != 0) {
        g_free (shortcut_item->type);
        shortcut_item->type  = g_strdup (type);
        changed = TRUE;
    }

    return changed;
}

static void
shortcut_item_free (EShortcutItem *shortcut_item)
{
    g_free (shortcut_item->uri);
    g_free (shortcut_item->name);
    g_free (shortcut_item->type);

    g_free (shortcut_item);
}

static ShortcutGroup *
shortcut_group_new (const char *title)
{
    ShortcutGroup *new;

    new = g_new (ShortcutGroup, 1);
    new->title     = g_strdup (title);
    new->shortcuts = NULL;

    return new;
}

static void
shortcut_group_free (ShortcutGroup *group)
{
    GSList *p;

    g_free (group->title);

    for (p = group->shortcuts; p != NULL; p = p->next)
        shortcut_item_free ((EShortcutItem *) p->data);
    g_slist_free (group->shortcuts);

    g_free (group);
}


/* Utility functions.  */

static gboolean
update_shortcut_and_emit_signal (EShortcuts *shortcuts,
                 EShortcutItem *shortcut_item,
                 int group_num,
                 int num,
                 const char *uri,
                 const char *name,
                 int unread_count,
                 const char *type)
{
    /* Only thing that changed was the unread count */
    if (shortcut_item->unread_count != unread_count
        && !shortcut_item_update (shortcut_item, uri, name, unread_count, type)) {
        gtk_signal_emit (GTK_OBJECT (shortcuts), signals[UPDATE_SHORTCUT], group_num, num);
        return FALSE;
    }

    /* Unread count is the same, but other stuff changed */
    else if (shortcut_item_update (shortcut_item, uri, name, unread_count, type)) {
        gtk_signal_emit (GTK_OBJECT (shortcuts), signals[UPDATE_SHORTCUT], group_num, num);
        return TRUE;
    }

    /* Nothing at all changed, return false only */
    else
        return FALSE;
}

static void
unload_shortcuts (EShortcuts *shortcuts)
{
    EShortcutsPrivate *priv;
    GSList *orig_groups;
    GSList *p;

    priv = shortcuts->priv;
    orig_groups = priv->groups;

    for (p = priv->groups; p != NULL; p = p->next) {
        ShortcutGroup *group;

        gtk_signal_emit (GTK_OBJECT (shortcuts), signals[REMOVE_GROUP], 0);

        group = (ShortcutGroup *) p->data;

        shortcut_group_free (group);

        priv->groups = priv->groups->next;
    }

    if (orig_groups != NULL)
        g_slist_free (orig_groups);

    priv->groups = NULL;
}

static gboolean
load_shortcuts (EShortcuts *shortcuts,
        const char *file_name)
{
    EShortcutsPrivate *priv;
    xmlDoc *doc;
    xmlNode *root;
    xmlNode *p, *q;

    /* FIXME: Update the views by emitting the appropriate signals.  */

    priv = shortcuts->priv;

    doc = xmlParseFile (file_name);
    if (doc == NULL)
        return FALSE;

    root = xmlDocGetRootElement (doc);
    if (root == NULL || strcmp (root->name, "shortcuts") != 0) {
        xmlFreeDoc (doc);
        return FALSE;
    }

    unload_shortcuts (shortcuts);

    for (p = root->childs; p != NULL; p = p->next) {
        ShortcutGroup *shortcut_group;
        xmlChar *shortcut_group_title;

        if (strcmp ((char *) p->name, "group") != 0)
            continue;

        shortcut_group_title = xmlGetProp (p, "title");
        if (shortcut_group_title == NULL)
            continue;

        shortcut_group = shortcut_group_new (shortcut_group_title);
        xmlFree (shortcut_group_title);

        for (q = p->childs; q != NULL; q = q->next) {
            EShortcutItem *shortcut_item;
            xmlChar *uri;
            xmlChar *name;
            xmlChar *type;

            if (strcmp ((char *) q->name, "item") != 0)
                continue;

            uri  = xmlNodeListGetString (doc, q->childs, 1);
            name = xmlGetProp (q, "name");
            type = xmlGetProp (q, "type");
            
            if (strncmp (uri, E_SHELL_URI_PREFIX, E_SHELL_URI_PREFIX_LEN) == 0) {
                EFolder *folder;

                folder = e_storage_set_get_folder (priv->storage_set, uri + E_SHELL_URI_PREFIX_LEN);
                if (folder != NULL) {
                    if (type != NULL)
                        xmlFree (type);
                    type = xmlMemStrdup (e_folder_get_type_string (folder));
                } else {
                    EStorage *storage;
                    const char *storage_type;

                    storage = e_storage_set_get_storage (priv->storage_set,
                                         uri + E_SHELL_URI_PREFIX_LEN + 1);
                    if (storage != NULL) {
                        if (type != NULL)
                            xmlFree (type);
                        storage_type = e_storage_get_toplevel_node_type (storage);

                        if (storage_type == NULL)
                            type = NULL;
                        else
                            type = xmlMemStrdup (storage_type);

                        if (name != NULL)
                            xmlFree (name);

                        name = xmlMemStrdup (e_storage_get_display_name (storage));
                    }
                }
            }

            shortcut_item = shortcut_item_new (uri, name, 0, type);
            shortcut_group->shortcuts = g_slist_prepend (shortcut_group->shortcuts,
                                     shortcut_item);

            if (uri != NULL)
                xmlFree (uri);
            if (name != NULL)
                xmlFree (name);
            if (type != NULL)
                xmlFree (type);
        }

        shortcut_group->shortcuts = g_slist_reverse (shortcut_group->shortcuts);

        priv->groups = g_slist_prepend (priv->groups, shortcut_group);
        priv->num_groups ++;
    }

    priv->groups = g_slist_reverse (priv->groups);

    xmlFreeDoc (doc);

    /* After loading, we always have to re-save ourselves as we have merged
       the information we have with the information we got from the
       StorageSet.  */
    /* FIXME: Obviously, this sucks.  */
    make_dirty (shortcuts);

    return TRUE;
}

static gboolean
save_shortcuts (EShortcuts *shortcuts,
        const char *file_name)
{
    EShortcutsPrivate *priv;
    xmlDoc *doc;
    xmlNode *root;
    GSList *p, *q;

    priv = shortcuts->priv;

    doc = xmlNewDoc ((xmlChar *) "1.0");
    root = xmlNewDocNode (doc, NULL, (xmlChar *) "shortcuts", NULL);
    xmlDocSetRootElement (doc, root);

    for (p = priv->groups; p != NULL; p = p->next) {
        ShortcutGroup *group;
        xmlNode *group_node;

        group = (ShortcutGroup *) p->data;
        group_node = xmlNewChild (root, NULL, (xmlChar *) "group", NULL);

        xmlSetProp (group_node, (xmlChar *) "title", group->title);

        for (q = group->shortcuts; q != NULL; q = q->next) {
            EShortcutItem *shortcut;
            xmlNode *shortcut_node;

            shortcut = (EShortcutItem *) q->data;
            shortcut_node = xmlNewTextChild (group_node, NULL, (xmlChar *) "item",
                             (xmlChar *) shortcut->uri);

            if (shortcut->name != NULL)
                xmlSetProp (shortcut_node, (xmlChar *) "name", shortcut->name);

            if (shortcut->type != NULL)
                xmlSetProp (shortcut_node, (xmlChar *) "type", shortcut->type);

        }
    }

    if (xmlSaveFile (file_name, doc) < 0) {
        xmlFreeDoc (doc);
        return FALSE;
    }

    xmlFreeDoc (doc);
    return TRUE;
}


/* Idle function to update the file on disk.  */

static int
idle_cb (void *data)
{
    EShortcuts *shortcuts;
    EShortcutsPrivate *priv;

    shortcuts = E_SHORTCUTS (data);
    priv = shortcuts->priv;

    if (priv->dirty) {
        g_print ("Saving shortcuts -- %s\n", priv->file_name);
        if (! e_shortcuts_save (shortcuts, NULL))
            g_warning ("Saving of shortcuts failed -- %s", priv->file_name);
        else
            priv->dirty = FALSE;
    }

    priv->save_idle_id = 0;

    return FALSE;
}

static void
schedule_idle (EShortcuts *shortcuts)
{
    EShortcutsPrivate *priv;

    priv = shortcuts->priv;

    if (priv->save_idle_id != 0)
        return;

    priv->save_idle_id = gtk_idle_add (idle_cb, shortcuts);
}

static void
make_dirty (EShortcuts *shortcuts)
{
    EShortcutsPrivate *priv;

    priv = shortcuts->priv;

    priv->dirty = TRUE;
    schedule_idle (shortcuts);
}

static void
update_shortcuts_by_path (EShortcuts *shortcuts,
              const char *path)
{
    EShortcutsPrivate *priv;
    EFolder *folder;
    const GSList *p, *q;
    char *evolution_uri;
    int group_num, num;
    gboolean changed = FALSE;

    priv = shortcuts->priv;
    folder = e_storage_set_get_folder (priv->storage_set, path);

    evolution_uri = g_strconcat (E_SHELL_URI_PREFIX, path, NULL);

    group_num = 0;
    for (p = priv->groups; p != NULL; p = p->next, group_num++) {
        ShortcutGroup *group;

        group = (ShortcutGroup *) p->data;
        num = 0;
        for (q = group->shortcuts; q != NULL; q = q->next, num++) {
            EShortcutItem *shortcut_item;

            shortcut_item = (EShortcutItem *) q->data;

            if (strcmp (shortcut_item->uri, evolution_uri) == 0) {
                changed = update_shortcut_and_emit_signal (shortcuts,
                                       shortcut_item,
                                       group_num,
                                       num,
                                       evolution_uri,
                                       shortcut_item->name,
                                       e_folder_get_unread_count (folder),
                                       e_folder_get_type_string (folder));
            }
        }
    }

    g_free (evolution_uri);

    if (changed)
        make_dirty (shortcuts);
}


static EShortcutItem *
get_item (EShortcuts *shortcuts,
      int group_num,
      int num)
{
    EShortcutsPrivate *priv;
    ShortcutGroup *group;
    GSList *group_element;
    GSList *shortcut_element;

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

    priv = shortcuts->priv;

    group_element = g_slist_nth (priv->groups, group_num);
    if (group_element == NULL)
        return NULL;

    group = (ShortcutGroup *) group_element->data;

    shortcut_element = g_slist_nth (group->shortcuts, num);
    if (shortcut_element == NULL)
        return NULL;

    return (EShortcutItem *) shortcut_element->data;
}


/* Signal handlers for the views.  */

static void
view_destroyed_cb (GtkObject *object,
           gpointer data)
{
    EShortcuts *shortcuts;
    EShortcutsPrivate *priv;

    shortcuts = E_SHORTCUTS (data);
    priv = shortcuts->priv;

    priv->views = g_slist_remove (priv->views, object);
}


/* Signal handlers for the EStorageSet.  */

static void
storage_set_new_folder_callback (EStorageSet *storage_set,
                 const char *path,
                 void *data)
{
    EShortcuts *shortcuts;

    shortcuts = E_SHORTCUTS (data);

    update_shortcuts_by_path (shortcuts, path);
}

static void
storage_set_updated_folder_callback (EStorageSet *storage_set,
                     const char *path,
                     void *data)
{
    EShortcuts *shortcuts;

    shortcuts = E_SHORTCUTS (data);

    update_shortcuts_by_path (shortcuts, path);
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    EShortcuts *shortcuts;
    EShortcutsPrivate *priv;

    shortcuts = E_SHORTCUTS (object);
    priv = shortcuts->priv;

    g_free (priv->file_name);

    if (priv->storage_set != NULL)
        gtk_object_unref (GTK_OBJECT (priv->storage_set));

    if (priv->folder_type_registry != NULL)
        gtk_object_unref (GTK_OBJECT (priv->folder_type_registry));

    unload_shortcuts (shortcuts);

    if (priv->save_idle_id != 0)
        gtk_idle_remove (priv->save_idle_id);

    if (priv->dirty) {
        if (! e_shortcuts_save (shortcuts, NULL))
            g_warning (_("Error saving shortcuts.")); /* FIXME */
    }

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

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

    object_class = (GtkObjectClass*) klass;
    object_class->destroy = destroy;

    parent_class = gtk_type_class (gtk_object_get_type ());

    signals[NEW_GROUP]
        = gtk_signal_new ("new_group",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EShortcutsClass, new_group),
                  gtk_marshal_NONE__INT,
                  GTK_TYPE_NONE, 1,
                  GTK_TYPE_INT);

    signals[REMOVE_GROUP]
        = gtk_signal_new ("remove_group",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EShortcutsClass, remove_group),
                  gtk_marshal_NONE__INT,
                  GTK_TYPE_NONE, 1,
                  GTK_TYPE_INT);

    signals[RENAME_GROUP]
        = gtk_signal_new ("rename_group",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EShortcutsClass, rename_group),
                  gtk_marshal_NONE__INT_POINTER,
                  GTK_TYPE_NONE, 2,
                  GTK_TYPE_INT,
                  GTK_TYPE_STRING);

    signals[NEW_SHORTCUT]
        = gtk_signal_new ("new_shortcut",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EShortcutsClass, new_shortcut),
                  gtk_marshal_NONE__INT_INT,
                  GTK_TYPE_NONE, 2,
                  GTK_TYPE_INT,
                  GTK_TYPE_INT);

    signals[REMOVE_SHORTCUT]
        = gtk_signal_new ("remove_shortcut",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EShortcutsClass, remove_shortcut),
                  gtk_marshal_NONE__INT_INT,
                  GTK_TYPE_NONE, 2,
                  GTK_TYPE_INT,
                  GTK_TYPE_INT);

    signals[UPDATE_SHORTCUT]
        = gtk_signal_new ("update_shortcut",
                  GTK_RUN_FIRST,
                  object_class->type,
                  GTK_SIGNAL_OFFSET (EShortcutsClass, update_shortcut),
                  gtk_marshal_NONE__INT_INT,
                  GTK_TYPE_NONE, 2,
                  GTK_TYPE_INT,
                  GTK_TYPE_INT);

    gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
}


static void
init (EShortcuts *shortcuts)
{
    EShortcutsPrivate *priv;

    priv = g_new (EShortcutsPrivate, 1);

    priv->file_name      = NULL;
    priv->storage_set    = NULL;
    priv->num_groups     = 0;
    priv->groups         = NULL;
    priv->views          = NULL;
    priv->dirty          = 0;
    priv->save_idle_id   = 0;

    shortcuts->priv = priv;
}


void
e_shortcuts_construct (EShortcuts  *shortcuts,
               EStorageSet *storage_set,
               EFolderTypeRegistry *folder_type_registry)
{
    EShortcutsPrivate *priv;

    g_return_if_fail (shortcuts != NULL);
    g_return_if_fail (E_IS_SHORTCUTS (shortcuts));
    g_return_if_fail (storage_set != NULL);
    g_return_if_fail (E_IS_STORAGE_SET (storage_set));

    GTK_OBJECT_UNSET_FLAGS (GTK_OBJECT (shortcuts), GTK_FLOATING);

    priv = shortcuts->priv;

    gtk_object_ref (GTK_OBJECT (storage_set));
    priv->storage_set = storage_set;

    gtk_signal_connect (GTK_OBJECT (storage_set), "new_folder",
                GTK_SIGNAL_FUNC (storage_set_new_folder_callback), shortcuts);
    gtk_signal_connect (GTK_OBJECT (storage_set), "updated_folder",
                GTK_SIGNAL_FUNC (storage_set_updated_folder_callback), shortcuts);

    gtk_object_ref (GTK_OBJECT (folder_type_registry));
    priv->folder_type_registry = folder_type_registry;
}

EShortcuts *
e_shortcuts_new (EStorageSet *storage_set,
         EFolderTypeRegistry *folder_type_registry,
         const char *file_name)
{
    EShortcuts *new;

    g_return_val_if_fail (storage_set != NULL, NULL);
    g_return_val_if_fail (E_IS_STORAGE_SET (storage_set), NULL);

    new = gtk_type_new (e_shortcuts_get_type ());
    e_shortcuts_construct (new, storage_set, folder_type_registry);

    if (! e_shortcuts_load (new, file_name))
        new->priv->file_name = g_strdup (file_name);

    return new;
}


int
e_shortcuts_get_num_groups (EShortcuts *shortcuts)
{
    g_return_val_if_fail (shortcuts != NULL, 0);
    g_return_val_if_fail (E_IS_SHORTCUTS (shortcuts), 0);

    return shortcuts->priv->num_groups;
}

GSList *
e_shortcuts_get_group_titles (EShortcuts *shortcuts)
{
    EShortcutsPrivate *priv;
    ShortcutGroup *group;
    GSList *list;
    GSList *p;

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

    priv = shortcuts->priv;

    list = NULL;

    for (p = priv->groups; p != NULL; p = p->next) {
        group = (ShortcutGroup *) p->data;
        list = g_slist_prepend (list, g_strdup (group->title));
    }

    return g_slist_reverse (list);
}

const GSList *
e_shortcuts_get_shortcuts_in_group (EShortcuts *shortcuts,
                    int group_num)
{
    EShortcutsPrivate *priv;
    ShortcutGroup *shortcut_group;
    GSList *shortcut_group_list_item;

    priv = shortcuts->priv;

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

    shortcut_group_list_item = g_slist_nth (priv->groups, group_num);
    if (shortcut_group_list_item == NULL)
        return NULL;

    shortcut_group = (ShortcutGroup *) shortcut_group_list_item->data;

    return shortcut_group->shortcuts;
}


EStorageSet *
e_shortcuts_get_storage_set (EShortcuts *shortcuts)
{
    g_return_val_if_fail (shortcuts != NULL, NULL);
    g_return_val_if_fail (E_IS_SHORTCUTS (shortcuts), NULL);

    return shortcuts->priv->storage_set;
}


GtkWidget *
e_shortcuts_new_view (EShortcuts *shortcuts)
{
    EShortcutsPrivate *priv;
    GtkWidget *new;

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

    priv = shortcuts->priv;

    new = e_shortcuts_view_new (shortcuts);
    priv->views = g_slist_prepend (priv->views, new);

    gtk_signal_connect (GTK_OBJECT (new), "destroy", view_destroyed_cb, shortcuts);

    return new;
}


gboolean
e_shortcuts_load (EShortcuts *shortcuts,
          const char *file_name)
{
    EShortcutsPrivate *priv;
    char *tmp;

    g_return_val_if_fail (shortcuts != NULL, FALSE);
    g_return_val_if_fail (E_IS_SHORTCUTS (shortcuts), FALSE);
    g_return_val_if_fail (file_name == NULL || g_path_is_absolute (file_name), FALSE);

    priv = shortcuts->priv;

    if (file_name == NULL) {
        if (priv->file_name == NULL)
            return FALSE;
        file_name = priv->file_name;
    }

    if (! load_shortcuts (shortcuts, file_name))
        return FALSE;

    tmp = g_strdup (file_name);
    g_free (priv->file_name);
    priv->file_name = tmp;

    return TRUE;
}

gboolean
e_shortcuts_save (EShortcuts *shortcuts,
          const char *file_name)
{
    EShortcutsPrivate *priv;
    char *tmp;

    g_return_val_if_fail (shortcuts != NULL, FALSE);
    g_return_val_if_fail (E_IS_SHORTCUTS (shortcuts), FALSE);
    g_return_val_if_fail (file_name == NULL || g_path_is_absolute (file_name), FALSE);

    priv = shortcuts->priv;

    if (file_name == NULL) {
        if (priv->file_name == NULL)
            return FALSE;
        file_name = priv->file_name;
    }

    if (! save_shortcuts (shortcuts, file_name))
        return FALSE;

    tmp = g_strdup (file_name);
    g_free (priv->file_name);
    priv->file_name = tmp;

    return TRUE;
}


const EShortcutItem *
e_shortcuts_get_shortcut (EShortcuts *shortcuts,
              int group_num,
              int num)
{
    g_return_val_if_fail (shortcuts != NULL, NULL);
    g_return_val_if_fail (E_IS_SHORTCUTS (shortcuts), NULL);

    return (const EShortcutItem *) get_item (shortcuts, group_num, num);
}


void
e_shortcuts_remove_shortcut (EShortcuts *shortcuts,
                 int group_num,
                 int num)
{
    EShortcutsPrivate *priv;
    ShortcutGroup *group;
    GSList *p;
    EShortcutItem *item;

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

    priv = shortcuts->priv;

    p = g_slist_nth (priv->groups, group_num);
    g_return_if_fail (p != NULL);

    group = (ShortcutGroup *) p->data;

    p = g_slist_nth (group->shortcuts, num);
    g_return_if_fail (p != NULL);

    gtk_signal_emit (GTK_OBJECT (shortcuts), signals[REMOVE_SHORTCUT], group_num, num);

    item = (EShortcutItem *) p->data;
    shortcut_item_free (item);

    group->shortcuts = g_slist_remove_link (group->shortcuts, p);

    make_dirty (shortcuts);
}

void
e_shortcuts_add_shortcut (EShortcuts *shortcuts,
              int group_num,
              int num,
              const char *uri,
              const char *name,
              int unread_count,
              const char *type)
{
    EShortcutsPrivate *priv;
    ShortcutGroup *group;
    EShortcutItem *item;
    GSList *p;

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

    priv = shortcuts->priv;

    p = g_slist_nth (priv->groups, group_num);
    g_return_if_fail (p != NULL);

    group = (ShortcutGroup *) p->data;

    if (num == -1)
        num = g_slist_length (group->shortcuts);

    item = shortcut_item_new (uri, name, unread_count, type);

    group->shortcuts = g_slist_insert (group->shortcuts, item, num);

    gtk_signal_emit (GTK_OBJECT (shortcuts), signals[NEW_SHORTCUT], group_num, num);

    make_dirty (shortcuts);
}

void
e_shortcuts_update_shortcut (EShortcuts *shortcuts,
                 int         group_num,
                 int         num,
                 const char *uri,
                 const char *name,
                 int unread_count,
                 const char *type)
{
    EShortcutItem *shortcut_item;

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

    shortcut_item = get_item (shortcuts, group_num, num);

    update_shortcut_and_emit_signal (shortcuts, shortcut_item, group_num, num, uri, name, unread_count, type);

    make_dirty (shortcuts);
}


void
e_shortcuts_add_default_group (EShortcuts *shortcuts)
{
    char *utf;

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

    utf = e_utf8_from_locale_string (_("Shortcuts"));
    e_shortcuts_add_group (shortcuts, -1, utf);
    g_free (utf);

    /* FIXME: Inbox shortcut should point to something else for
           people who won't care about using /Local Folders/Inbox */
    utf = e_utf8_from_locale_string (_("Summary"));
    e_shortcuts_add_shortcut (shortcuts, 0, -1, "evolution:/summary", utf, 0, "summary");
    g_free (utf);
    utf = e_utf8_from_locale_string (_("Inbox"));
    e_shortcuts_add_shortcut (shortcuts, 0, -1, "evolution:/local/Inbox", utf, 0, "mail");
    g_free (utf);
    utf = e_utf8_from_locale_string (_("Calendar"));
    e_shortcuts_add_shortcut (shortcuts, 0, -1, "evolution:/local/Calendar", utf, 0, "calendar");
    g_free (utf);
    utf = e_utf8_from_locale_string (_("Tasks"));
    e_shortcuts_add_shortcut (shortcuts, 0, -1, "evolution:/local/Tasks", utf, 0, "tasks");
    g_free (utf);
    utf = e_utf8_from_locale_string (_("Contacts"));
    e_shortcuts_add_shortcut (shortcuts, 0, -1, "evolution:/local/Contacts", utf, 0, "contacts");
    g_free (utf);
}

void
e_shortcuts_remove_group (EShortcuts *shortcuts,
              int group_num)
{
    EShortcutsPrivate *priv;
    GSList *p;

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

    priv = shortcuts->priv;

    p = g_slist_nth (priv->groups, group_num);
    g_return_if_fail (p != NULL);

    gtk_signal_emit (GTK_OBJECT (shortcuts), signals[REMOVE_GROUP], group_num);

    shortcut_group_free ((ShortcutGroup *) p->data);

    priv->groups = g_slist_remove_link (priv->groups, p);
    priv->num_groups --;

    make_dirty (shortcuts);
}

void
e_shortcuts_rename_group (EShortcuts *shortcuts,
              int group_num,
              const char *new_title)
{
    EShortcutsPrivate *priv;
    GSList *p;
    ShortcutGroup *group;

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

    priv = shortcuts->priv;

    p = g_slist_nth (priv->groups, group_num);
    g_return_if_fail (p != NULL);

    group = (ShortcutGroup *) p->data;
    if (strcmp (group->title, new_title)) {
        g_free (group->title);
        group->title = g_strdup (new_title);
    } else
        return;

    gtk_signal_emit (GTK_OBJECT (shortcuts), signals[RENAME_GROUP], group_num, new_title);

    make_dirty (shortcuts);
}

void
e_shortcuts_add_group (EShortcuts *shortcuts,
               int group_num,
               const char *group_name)
{
    EShortcutsPrivate *priv;
    ShortcutGroup *group;

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

    priv = shortcuts->priv;

    group = shortcut_group_new (group_name);

    if (group_num == -1)
        group_num = g_slist_length (priv->groups);

    priv->groups = g_slist_insert (priv->groups, group, group_num);
    priv->num_groups ++;

    gtk_signal_emit (GTK_OBJECT (shortcuts), signals[NEW_GROUP], group_num);

    make_dirty (shortcuts);
}


const char *
e_shortcuts_get_group_title (EShortcuts *shortcuts,
                 int group_num)
{
    EShortcutsPrivate *priv;
    GSList *group_element;
    const ShortcutGroup *group;

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

    priv = shortcuts->priv;

    group_element = g_slist_nth (priv->groups, group_num);
    if (group_element == NULL)
        return NULL;

    group = (ShortcutGroup *) group_element->data;

    return group->title;
}


E_MAKE_TYPE (e_shortcuts, "EShortcuts", EShortcuts, class_init, init, PARENT_TYPE)