path: root/shell/e-shell.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-shell.c
 *
 * Copyright (C) 2000  Helix Code, 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
 */

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

#include <gtk/gtkobject.h>
#include <gtk/gtktypeutils.h>

#include "e-util/e-util.h"

#include "e-folder-type-repository.h"
#include "e-local-storage.h"
#include "e-shell-view.h"
#include "e-shortcuts.h"
#include "e-storage-set.h"

#include "e-shell.h"


#define PARENT_TYPE GTK_TYPE_OBJECT
static GtkObjectClass *parent_class = NULL;

struct _EShellPrivate {
    char *local_directory;

    GList *views;

    EStorageSet *storage_set;
    EShortcuts *shortcuts;
    EFolderTypeRepository *folder_type_repository;
};

#define SHORTCUTS_FILE_NAME     "shortcuts.xml"
#define LOCAL_STORAGE_DIRECTORY "local"

enum {
    NO_VIEWS_LEFT,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };


/* Initialization of the storages.  */

static gboolean
setup_storages (EShell *shell)
{
    EStorage *local_storage;
    EShellPrivate *priv;
    gchar *local_storage_path;

    priv = shell->priv;

    local_storage_path = g_concat_dir_and_file (priv->local_directory,
                            LOCAL_STORAGE_DIRECTORY);
    local_storage = e_local_storage_open (local_storage_path);
    if (local_storage == NULL) {
        g_warning (_("Cannot set up local storage -- %s"), local_storage_path);
        g_free (local_storage_path);
        return FALSE;
    }
    g_free (local_storage_path);

    g_assert (shell->priv->folder_type_repository);

    priv->storage_set = e_storage_set_new (shell->priv->folder_type_repository);
    e_storage_set_add_storage (priv->storage_set, local_storage);

    return TRUE;
}


/* EShellView destruction callback.  */

static void
view_destroy_cb (GtkObject *object,
         gpointer data)
{
    EShell *shell;

    g_assert (E_IS_SHELL_VIEW (object));

    shell = E_SHELL (data);
    shell->priv->views = g_list_remove (shell->priv->views, object);

    if (shell->priv->views == NULL)
        gtk_signal_emit (GTK_OBJECT (shell), signals[NO_VIEWS_LEFT]);
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    EShell *shell;
    EShellPrivate *priv;
    GList *p;

    shell = E_SHELL (object);
    priv = shell->priv;

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

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

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

    for (p = priv->views; p != NULL; p = p->next) {
        EShellView *view;

        view = E_SHELL_VIEW (p->data);

        gtk_signal_disconnect_by_func (GTK_OBJECT (view),
                           GTK_SIGNAL_FUNC (view_destroy_cb), shell);
        gtk_object_destroy (GTK_OBJECT (view));
    }

    g_list_free (priv->views);

    g_free (priv);

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

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

    parent_class = gtk_type_class (gtk_object_get_type ());

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

    signals[NO_VIEWS_LEFT] =
        gtk_signal_new ("no_views_left",
                GTK_RUN_LAST,
                object_class->type,
                GTK_SIGNAL_OFFSET (EShellClass, no_views_left),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
}

static void
init (EShell *shell)
{
    EShellPrivate *priv;

    priv = g_new (EShellPrivate, 1);

    priv->views = NULL;

    priv->local_directory        = NULL;
    priv->storage_set            = NULL;
    priv->shortcuts              = NULL;
    priv->folder_type_repository = NULL;

    shell->priv = priv;
}


void
e_shell_construct (EShell *shell,
           const char *local_directory)
{
    EShellPrivate *priv;
    gchar *shortcut_path;

    g_return_if_fail (shell != NULL);
    g_return_if_fail (E_IS_SHELL (shell));
    g_return_if_fail (local_directory != NULL);
    g_return_if_fail (g_path_is_absolute (local_directory));

    GTK_OBJECT_UNSET_FLAGS (shell, GTK_FLOATING);

    priv = shell->priv;

    priv->local_directory = g_strdup (local_directory);

    priv->folder_type_repository = e_folder_type_repository_new ();

    if (! setup_storages (shell))
        return;

    priv->shortcuts = e_shortcuts_new (priv->storage_set, priv->folder_type_repository);

    shortcut_path = g_concat_dir_and_file (local_directory, "shortcuts.xml");

    if (! e_shortcuts_load (priv->shortcuts, shortcut_path)) {
        gtk_object_unref (GTK_OBJECT (priv->shortcuts));
        priv->shortcuts = NULL;

        g_warning ("Cannot load shortcuts -- %s", shortcut_path);
    }

    g_free (shortcut_path);
}

EShell *
e_shell_new (const char *local_directory)
{
    EShell *new;
    EShellPrivate *priv;

    new = gtk_type_new (e_shell_get_type ());
    e_shell_construct (new, local_directory);

    priv = new->priv;

    if (priv->shortcuts == NULL || priv->storage_set == NULL) {
        gtk_object_unref (GTK_OBJECT (new));
        return NULL;
    }

    return new;
}


GtkWidget *
e_shell_new_view (EShell *shell,
          const char *uri)
{
    GtkWidget *view;

    g_return_val_if_fail (shell != NULL, NULL);
    g_return_val_if_fail (E_IS_SHELL (shell), NULL);

    view = e_shell_view_new (shell);

    gtk_widget_show (view);
    gtk_signal_connect (GTK_OBJECT (view), "destroy", GTK_SIGNAL_FUNC (view_destroy_cb), shell);

    if (uri != NULL)
        e_shell_view_display_uri (E_SHELL_VIEW (view), uri);

    shell->priv->views = g_list_prepend (shell->priv->views, view);

    return view;
}


EShortcuts *
e_shell_get_shortcuts (EShell *shell)
{
    g_return_val_if_fail (shell != NULL, NULL);
    g_return_val_if_fail (E_IS_SHELL (shell), NULL);

    return shell->priv->shortcuts;
}

EStorageSet *
e_shell_get_storage_set (EShell *shell)
{
    g_return_val_if_fail (shell != NULL, NULL);
    g_return_val_if_fail (E_IS_SHELL (shell), NULL);

    return shell->priv->storage_set;
}

EFolderTypeRepository *
e_shell_get_folder_type_repository (EShell *shell)
{
    g_return_val_if_fail (shell != NULL, NULL);
    g_return_val_if_fail (E_IS_SHELL (shell), NULL);

    return shell->priv->folder_type_repository;
}


void
e_shell_quit (EShell *shell)
{
    g_return_if_fail (shell != NULL);
    g_return_if_fail (E_IS_SHELL (shell));

    gtk_object_destroy (GTK_OBJECT (shell));
}


E_MAKE_TYPE (e_shell, "EShell", EShell, class_init, init, PARENT_TYPE)