path: root/shell/evolution-shell-component-client.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* evolution-shell-component-client.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
 */

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

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

#include <liboaf/liboaf.h>

#include <bonobo/bonobo-main.h>
#include <bonobo/bonobo-widget.h>

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

#include "evolution-shell-component-client.h"


char *evolution_debug_log;

#define PARENT_TYPE BONOBO_OBJECT_CLIENT_TYPE
static BonoboObjectClass *parent_class = NULL;

struct _EvolutionShellComponentClientPrivate {
    EvolutionShellComponentClientCallback callback;
    void *callback_data;

    GNOME_Evolution_ShellComponentListener listener_interface;
    PortableServer_Servant listener_servant;

    GNOME_Evolution_ShellComponentDnd_SourceFolder dnd_source_folder_interface;
    GNOME_Evolution_ShellComponentDnd_DestinationFolder dnd_destination_folder_interface;
    GNOME_Evolution_Offline offline_interface;
};


#define RETURN_ERROR_IF_FAIL(cond) \
    g_return_val_if_fail ((cond), EVOLUTION_SHELL_COMPONENT_INVALIDARG)


/* Utility functions.  */

static EvolutionShellComponentResult
corba_exception_to_result (const CORBA_Environment *ev)
{
    if (ev->_major == CORBA_NO_EXCEPTION)
        return EVOLUTION_SHELL_COMPONENT_OK;

    if (ev->_major == CORBA_USER_EXCEPTION) {
        if (strcmp (ev->_repo_id, ex_GNOME_Evolution_ShellComponent_AlreadyOwned) == 0)
            return EVOLUTION_SHELL_COMPONENT_ALREADYOWNED;
        if (strcmp (ev->_repo_id, ex_GNOME_Evolution_ShellComponent_NotOwned) == 0)
            return EVOLUTION_SHELL_COMPONENT_NOTOWNED;
        if (strcmp (ev->_repo_id, ex_GNOME_Evolution_ShellComponent_NotFound) == 0)
            return EVOLUTION_SHELL_COMPONENT_NOTFOUND;
        if (strcmp (ev->_repo_id, ex_GNOME_Evolution_ShellComponent_UnsupportedType) == 0)
            return EVOLUTION_SHELL_COMPONENT_UNSUPPORTEDTYPE;
        if (strcmp (ev->_repo_id, ex_GNOME_Evolution_ShellComponent_InternalError) == 0)
            return EVOLUTION_SHELL_COMPONENT_INTERNALERROR;
        if (strcmp (ev->_repo_id, ex_GNOME_Evolution_ShellComponent_Busy) == 0)
            return EVOLUTION_SHELL_COMPONENT_BUSY;

        return EVOLUTION_SHELL_COMPONENT_UNKNOWNERROR;
    } else {
        /* FIXME maybe we need something more specific here.  */
        return EVOLUTION_SHELL_COMPONENT_CORBAERROR;
    }
}

static void
dispatch_callback (EvolutionShellComponentClient *shell_component_client,
           EvolutionShellComponentResult result)
{
    EvolutionShellComponentClientPrivate *priv;
    EvolutionShellComponentClientCallback callback;
    PortableServer_ObjectId *oid;
    void *callback_data;
    CORBA_Environment ev;

    priv = shell_component_client->priv;

    g_return_if_fail (priv->callback != NULL);
    g_return_if_fail (priv->listener_servant != NULL);

    /* Notice that we destroy the interface and reset the callback information before
           dispatching the callback so that the callback can generate another request.  */

    CORBA_exception_init (&ev);

    oid = PortableServer_POA_servant_to_id (bonobo_poa (), priv->listener_servant, &ev);
    PortableServer_POA_deactivate_object (bonobo_poa (), oid, &ev);
    POA_GNOME_Evolution_ShellComponentListener__fini (priv->listener_servant, &ev);
    CORBA_free (oid);

    CORBA_Object_release (priv->listener_interface, &ev);
    free_ShellComponentListener_servant (priv->listener_servant);

    CORBA_exception_free (&ev);

    priv->listener_servant   = NULL;
    priv->listener_interface = CORBA_OBJECT_NIL;

    callback      = priv->callback;
    callback_data = priv->callback_data;

    priv->callback      = NULL;
    priv->callback_data = NULL;

    (* callback) (shell_component_client, result, callback_data);
}

static EvolutionShellComponentResult
shell_component_result_from_corba_exception (const CORBA_Environment *ev)
{
    if (ev->_major == CORBA_NO_EXCEPTION)
        return EVOLUTION_SHELL_COMPONENT_OK;
    if (ev->_major == CORBA_SYSTEM_EXCEPTION)
        return EVOLUTION_SHELL_COMPONENT_CORBAERROR;
    return EVOLUTION_SHELL_COMPONENT_CORBAERROR; /* FIXME? */
}


/* CORBA listener interface implementation.  */

static PortableServer_ServantBase__epv            ShellComponentListener_base_epv;
static POA_GNOME_Evolution_ShellComponentListener__epv  ShellComponentListener_epv;
static POA_GNOME_Evolution_ShellComponentListener__vepv ShellComponentListener_vepv;
static gboolean ShellComponentListener_vepv_initialized = FALSE;

struct _ShellComponentListenerServant {
    POA_GNOME_Evolution_ShellComponentListener servant;
    EvolutionShellComponentClient *component_client;
};
typedef struct _ShellComponentListenerServant ShellComponentListenerServant;

static EvolutionShellComponentClient *
component_client_from_ShellComponentListener_servant (PortableServer_Servant servant)
{
    ShellComponentListenerServant *listener_servant;

    listener_servant = (ShellComponentListenerServant *) servant;
    return listener_servant->component_client;
}

static EvolutionShellComponentResult
result_from_async_corba_result (GNOME_Evolution_ShellComponentListener_Result async_corba_result)
{
    switch (async_corba_result) {
    case GNOME_Evolution_ShellComponentListener_OK:
        return EVOLUTION_SHELL_COMPONENT_OK;
    case GNOME_Evolution_ShellComponentListener_UNSUPPORTED_OPERATION:
        return EVOLUTION_SHELL_COMPONENT_UNSUPPORTEDOPERATION;
    case GNOME_Evolution_ShellComponentListener_EXISTS:
        return EVOLUTION_SHELL_COMPONENT_EXISTS;
    case GNOME_Evolution_ShellComponentListener_INVALID_URI:
        return EVOLUTION_SHELL_COMPONENT_INVALIDURI;
    case GNOME_Evolution_ShellComponentListener_PERMISSION_DENIED:
        return EVOLUTION_SHELL_COMPONENT_PERMISSIONDENIED;
    case GNOME_Evolution_ShellComponentListener_HAS_SUBFOLDERS:
        return EVOLUTION_SHELL_COMPONENT_HASSUBFOLDERS;
    case GNOME_Evolution_ShellComponentListener_NO_SPACE:
        return EVOLUTION_SHELL_COMPONENT_NOSPACE;
    default:
        return EVOLUTION_SHELL_COMPONENT_UNKNOWNERROR;
    }
}

static void
impl_ShellComponentListener_report_result (PortableServer_Servant servant,
                       const GNOME_Evolution_ShellComponentListener_Result result,
                       CORBA_Environment *ev)
{
    EvolutionShellComponentClient *component_client;

    component_client = component_client_from_ShellComponentListener_servant (servant);
    dispatch_callback (component_client, result_from_async_corba_result (result));
}

static void
ShellComponentListener_vepv_initialize (void)
{
    ShellComponentListener_base_epv._private = NULL;
    ShellComponentListener_base_epv.finalize = NULL;
    ShellComponentListener_base_epv.default_POA = NULL;

    ShellComponentListener_epv.notifyResult = impl_ShellComponentListener_report_result;

    ShellComponentListener_vepv._base_epv = & ShellComponentListener_base_epv;
    ShellComponentListener_vepv.GNOME_Evolution_ShellComponentListener_epv = & ShellComponentListener_epv;

    ShellComponentListener_vepv_initialized = TRUE;
}

static PortableServer_Servant *
create_ShellComponentListener_servant (EvolutionShellComponentClient *component_client)
{
    ShellComponentListenerServant *servant;

    if (! ShellComponentListener_vepv_initialized)
        ShellComponentListener_vepv_initialize ();

    servant = g_new0 (ShellComponentListenerServant, 1);
    servant->servant.vepv     = &ShellComponentListener_vepv;
    servant->component_client = component_client;

    return (PortableServer_Servant) servant;
}

static void
free_ShellComponentListener_servant (PortableServer_Servant servant)
{
    g_free (servant);
}

static void
create_listener_interface (EvolutionShellComponentClient *shell_component_client)
{
    EvolutionShellComponentClientPrivate *priv;
    PortableServer_Servant listener_servant;
    GNOME_Evolution_ShellComponentListener corba_interface;
    CORBA_Environment ev;

    priv = shell_component_client->priv;

    listener_servant = create_ShellComponentListener_servant (shell_component_client);

    CORBA_exception_init (&ev);

    POA_GNOME_Evolution_ShellComponentListener__init (listener_servant, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        free_ShellComponentListener_servant (listener_servant);
        return;
    }

    CORBA_free (PortableServer_POA_activate_object (bonobo_poa (), listener_servant, &ev));

    corba_interface = PortableServer_POA_servant_to_reference (bonobo_poa (), listener_servant, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        corba_interface = CORBA_OBJECT_NIL;
        free_ShellComponentListener_servant (listener_servant);
    }

    CORBA_exception_free (&ev);

    priv->listener_servant   = listener_servant;
    priv->listener_interface = corba_interface;
}


/* GtkObject methods.  */

static void
impl_destroy (GtkObject *object)
{
    EvolutionShellComponentClient *shell_component_client;
    EvolutionShellComponentClientPrivate *priv;
    CORBA_Environment ev;

    shell_component_client = EVOLUTION_SHELL_COMPONENT_CLIENT (object);
    priv = shell_component_client->priv;

    if (priv->callback != NULL)
        dispatch_callback (shell_component_client, EVOLUTION_SHELL_COMPONENT_INTERRUPTED);

    CORBA_exception_init (&ev);

    if (priv->dnd_source_folder_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (priv->dnd_source_folder_interface, &ev);
        CORBA_Object_release (priv->dnd_source_folder_interface, &ev);
    }

    if (priv->dnd_destination_folder_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (priv->dnd_destination_folder_interface, &ev);
        CORBA_Object_release (priv->dnd_destination_folder_interface, &ev);
    }

    if (priv->offline_interface != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (priv->offline_interface, &ev);
        CORBA_Object_release (priv->offline_interface, &ev);
    }

    if (priv->listener_interface != CORBA_OBJECT_NIL) {
        CORBA_Object_release (priv->listener_interface, &ev);
        free_ShellComponentListener_servant (priv->listener_servant);
    }

    CORBA_exception_free (&ev);

    g_free (priv);

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

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

    object_class = GTK_OBJECT_CLASS (klass);
    parent_class = gtk_type_class (PARENT_TYPE);

    object_class->destroy = impl_destroy;
}

static void
init (EvolutionShellComponentClient *shell_component_client)
{
    EvolutionShellComponentClientPrivate *priv;

    priv = g_new (EvolutionShellComponentClientPrivate, 1);

    priv->listener_interface               = CORBA_OBJECT_NIL;
    priv->listener_servant                 = NULL;

    priv->callback                         = NULL;
    priv->callback_data                    = NULL;

    priv->dnd_source_folder_interface      = CORBA_OBJECT_NIL;
    priv->dnd_destination_folder_interface = CORBA_OBJECT_NIL;
    priv->offline_interface                = CORBA_OBJECT_NIL;

    shell_component_client->priv = priv;
}


/* Construction.  */

void
evolution_shell_component_client_construct (EvolutionShellComponentClient *shell_component_client,
                        CORBA_Object corba_object)
{
    g_return_if_fail (shell_component_client != NULL);
    g_return_if_fail (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    g_return_if_fail (corba_object != CORBA_OBJECT_NIL);

    bonobo_object_client_construct (BONOBO_OBJECT_CLIENT (shell_component_client),
                    corba_object);
}

EvolutionShellComponentClient *
evolution_shell_component_client_new (const char *id)
{
    CORBA_Environment ev;
    CORBA_Object corba_object;

    g_return_val_if_fail (id != NULL, NULL);

    CORBA_exception_init (&ev);

    corba_object = oaf_activate_from_id ((char *) id, 0, NULL, &ev); /* Yuck.  */
    if (ev._major != CORBA_NO_EXCEPTION) {
        CORBA_exception_free (&ev);
        g_warning ("Could not start up component for %s. "
               "(See previous error messages?)", id);
        return NULL;
    }
    CORBA_exception_free (&ev);

    if (corba_object == CORBA_OBJECT_NIL) {
        g_warning ("Could not activate component %s. "
               "(Maybe you need to set OAF_INFO_PATH?)", id);
        return NULL;
    }

    return evolution_shell_component_client_new_for_objref (corba_object);
}

EvolutionShellComponentClient *
evolution_shell_component_client_new_for_objref (const GNOME_Evolution_ShellComponent objref)
{
    EvolutionShellComponentClient *new;

    g_return_val_if_fail (objref != CORBA_OBJECT_NIL, NULL);

    new = gtk_type_new (evolution_shell_component_client_get_type ());
    evolution_shell_component_client_construct (new, objref);

    return new;
}


/* Querying DnD interfaces.  */

GNOME_Evolution_ShellComponentDnd_SourceFolder
evolution_shell_component_client_get_dnd_source_interface (EvolutionShellComponentClient *shell_component_client)
{
    EvolutionShellComponentClientPrivate *priv;
    GNOME_Evolution_ShellComponentDnd_SourceFolder interface;
    CORBA_Environment ev;

    g_return_val_if_fail (shell_component_client != NULL, CORBA_OBJECT_NIL);
    g_return_val_if_fail (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client), CORBA_OBJECT_NIL);

    priv = shell_component_client->priv;

    if (priv->dnd_source_folder_interface != CORBA_OBJECT_NIL)
        return priv->dnd_source_folder_interface;

    CORBA_exception_init (&ev);

    interface = Bonobo_Unknown_queryInterface (bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client)),
                           "IDL:GNOME/Evolution/ShellComponentDnd/SourceFolder:1.0",
                           &ev);

    if (ev._major != CORBA_NO_EXCEPTION)
        interface = CORBA_OBJECT_NIL;

    CORBA_exception_free (&ev);

    priv->dnd_source_folder_interface = interface;
    return interface;
}

GNOME_Evolution_ShellComponentDnd_DestinationFolder
evolution_shell_component_client_get_dnd_destination_interface (EvolutionShellComponentClient *shell_component_client)
{
    EvolutionShellComponentClientPrivate *priv;
    GNOME_Evolution_ShellComponentDnd_DestinationFolder interface;
    CORBA_Environment ev;

    g_return_val_if_fail (shell_component_client != NULL, CORBA_OBJECT_NIL);
    g_return_val_if_fail (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client), CORBA_OBJECT_NIL);

    priv = shell_component_client->priv;

    if (priv->dnd_destination_folder_interface != CORBA_OBJECT_NIL)
        return priv->dnd_destination_folder_interface;

    CORBA_exception_init (&ev);

    interface = Bonobo_Unknown_queryInterface (bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client)),
                           "IDL:GNOME/Evolution/ShellComponentDnd/DestinationFolder:1.0",
                           &ev);

    if (ev._major != CORBA_NO_EXCEPTION)
        interface = CORBA_OBJECT_NIL;

    CORBA_exception_free (&ev);

    priv->dnd_destination_folder_interface = interface;
    return interface;
}


/* Querying the offline interface.  */

GNOME_Evolution_Offline
evolution_shell_component_client_get_offline_interface (EvolutionShellComponentClient *shell_component_client)
{
    EvolutionShellComponentClientPrivate *priv;
    GNOME_Evolution_Offline interface;
    CORBA_Environment ev;

    priv = shell_component_client->priv;

    if (priv->offline_interface != CORBA_OBJECT_NIL)
        return priv->offline_interface;

    CORBA_exception_init (&ev);

    interface = Bonobo_Unknown_queryInterface (bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client)),
                           "IDL:GNOME/Evolution/Offline:1.0",
                           &ev);

    if (ev._major != CORBA_NO_EXCEPTION)
        interface = CORBA_OBJECT_NIL;

    CORBA_exception_free (&ev);

    priv->offline_interface = interface;
    return interface;
}


/* Synchronous operations.  */

EvolutionShellComponentResult
evolution_shell_component_client_set_owner (EvolutionShellComponentClient *shell_component_client,
                        GNOME_Evolution_Shell shell,
                        const char *evolution_homedir)
{
    EvolutionShellComponentResult result;
    CORBA_Environment ev;

    RETURN_ERROR_IF_FAIL (shell_component_client != NULL);
    RETURN_ERROR_IF_FAIL (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    RETURN_ERROR_IF_FAIL (shell != CORBA_OBJECT_NIL);

    CORBA_exception_init (&ev);

    GNOME_Evolution_ShellComponent_setOwner (bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client)),
                        shell, evolution_homedir, &ev);

    result = corba_exception_to_result (&ev);

    if (result == EVOLUTION_SHELL_COMPONENT_OK && evolution_debug_log)
        GNOME_Evolution_ShellComponent_debug (bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client)), evolution_debug_log, &ev);

    CORBA_exception_free (&ev);

    return result;
}

EvolutionShellComponentResult
evolution_shell_component_client_unset_owner (EvolutionShellComponentClient *shell_component_client,
                          GNOME_Evolution_Shell shell)
{
    EvolutionShellComponentResult result;
    GNOME_Evolution_ShellComponent corba_component;
    CORBA_Environment ev;

    RETURN_ERROR_IF_FAIL (shell_component_client != NULL);
    RETURN_ERROR_IF_FAIL (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    RETURN_ERROR_IF_FAIL (shell != CORBA_OBJECT_NIL);

    CORBA_exception_init (&ev);

    corba_component = bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client));

    GNOME_Evolution_ShellComponent_unsetOwner (corba_component, &ev);

    result = corba_exception_to_result (&ev);

    CORBA_exception_free (&ev);

    return result;
}

EvolutionShellComponentResult
evolution_shell_component_client_create_view (EvolutionShellComponentClient *shell_component_client,
                          BonoboUIComponent *uih,
                          const char *physical_uri,
                          const char *type_string,
                          BonoboControl **control_return)
{
    EvolutionShellComponentResult result;
    CORBA_Environment ev;
    GNOME_Evolution_ShellComponent corba_component;
    Bonobo_Control corba_control;

    RETURN_ERROR_IF_FAIL (shell_component_client != NULL);
    RETURN_ERROR_IF_FAIL (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    RETURN_ERROR_IF_FAIL (uih != NULL);
    RETURN_ERROR_IF_FAIL (BONOBO_IS_UI_COMPONENT (uih));
    RETURN_ERROR_IF_FAIL (physical_uri != NULL);
    RETURN_ERROR_IF_FAIL (type_string != NULL);
    RETURN_ERROR_IF_FAIL (control_return != NULL);

    CORBA_exception_init (&ev);

    corba_component = bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client));
    corba_control = GNOME_Evolution_ShellComponent_createView (corba_component, physical_uri, type_string, &ev);

    result = corba_exception_to_result (&ev);

    if (result != EVOLUTION_SHELL_COMPONENT_OK) {
        *control_return = NULL;
    } else {
        Bonobo_UIContainer corba_uih;

        corba_uih = bonobo_object_corba_objref (BONOBO_OBJECT (uih));
        *control_return = BONOBO_CONTROL (bonobo_widget_new_control_from_objref (corba_control,
                                             corba_uih));
    }

    CORBA_exception_free (&ev);

    return result;
}


/* Asyncronous operations.  */

void
evolution_shell_component_client_async_create_folder (EvolutionShellComponentClient *shell_component_client,
                              const char *physical_uri,
                              const char *type,
                              EvolutionShellComponentClientCallback callback,
                              void *data)
{
    EvolutionShellComponentClientPrivate *priv;
    GNOME_Evolution_ShellComponent corba_shell_component;
    CORBA_Environment ev;

    g_return_if_fail (shell_component_client != NULL);
    g_return_if_fail (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    g_return_if_fail (physical_uri != NULL);
    g_return_if_fail (type != NULL);
    g_return_if_fail (callback != NULL);

    priv = shell_component_client->priv;

    if (priv->callback != NULL) {
        (* callback) (shell_component_client, EVOLUTION_SHELL_COMPONENT_BUSY, data);
        return;
    }

    create_listener_interface (shell_component_client);

    CORBA_exception_init (&ev);

    corba_shell_component = bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client));

    priv->callback      = callback;
    priv->callback_data = data;

    GNOME_Evolution_ShellComponent_createFolderAsync (corba_shell_component,
                              priv->listener_interface,
                              physical_uri, type,
                              &ev);

    if (ev._major != CORBA_NO_EXCEPTION && priv->callback != NULL) {
        (* callback) (shell_component_client,
                  shell_component_result_from_corba_exception (&ev),
                  data);
        priv->callback = NULL;
        priv->callback_data = NULL;
    }

    CORBA_exception_free (&ev);
}

void
evolution_shell_component_client_async_remove_folder (EvolutionShellComponentClient *shell_component_client,
                              const char *physical_uri,
                              EvolutionShellComponentClientCallback callback,
                              void *data)
{
    /* FIXME to do. */
}

void
evolution_shell_component_client_async_xfer_folder (EvolutionShellComponentClient *shell_component_client,
                            const char *source_physical_uri,
                            const char *destination_physical_uri,
                            gboolean remove_source,
                            EvolutionShellComponentClientCallback callback,
                            void *data)
{
    EvolutionShellComponentClientPrivate *priv;
    GNOME_Evolution_ShellComponent corba_shell_component;
    CORBA_Environment ev;
    
    g_return_if_fail (shell_component_client != NULL);
    g_return_if_fail (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    g_return_if_fail (source_physical_uri != NULL);
    g_return_if_fail (destination_physical_uri != NULL);
    g_return_if_fail (data != NULL);

    priv = shell_component_client->priv;

    if (priv->callback != NULL) {
        (* callback) (shell_component_client, EVOLUTION_SHELL_COMPONENT_BUSY, data);
        return;
    }

    create_listener_interface (shell_component_client);

    CORBA_exception_init (&ev);

    corba_shell_component = bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client));

    priv->callback      = callback;
    priv->callback_data = data;

    GNOME_Evolution_ShellComponent_xferFolderAsync (corba_shell_component,
                            priv->listener_interface,
                            source_physical_uri,
                            destination_physical_uri,
                            remove_source,
                            &ev);

    if (ev._major != CORBA_NO_EXCEPTION && priv->callback != NULL) {
        (* callback) (shell_component_client,
                  shell_component_result_from_corba_exception (&ev),
                  data);
        priv->callback = NULL;
        priv->callback_data = NULL;
    }

    CORBA_exception_free (&ev);
}

void
evolution_shell_component_client_populate_folder_context_menu (EvolutionShellComponentClient *shell_component_client,
                                   BonoboUIContainer *container,
                                   const char *physical_uri,
                                   const char *type)
{
    Bonobo_UIContainer corba_container;
    EvolutionShellComponentClientPrivate *priv;
    GNOME_Evolution_ShellComponent corba_shell_component;
    CORBA_Environment ev;

    g_return_if_fail (shell_component_client != NULL);
    g_return_if_fail (EVOLUTION_IS_SHELL_COMPONENT_CLIENT (shell_component_client));
    g_return_if_fail (physical_uri != NULL);
    g_return_if_fail (type != NULL);

    priv = shell_component_client->priv;

    CORBA_exception_init (&ev);

    corba_shell_component = bonobo_object_corba_objref (BONOBO_OBJECT (shell_component_client));
    corba_container = bonobo_object_corba_objref (BONOBO_OBJECT (container));

    GNOME_Evolution_ShellComponent_populateFolderContextMenu (corba_shell_component,
                                  corba_container,
                                  physical_uri,
                                  type,
                                  &ev);

    CORBA_exception_free (&ev);
}


E_MAKE_TYPE (evolution_shell_component_client, "EvolutionShellComponentClient",
         EvolutionShellComponentClient, class_init, init, PARENT_TYPE)