path: root/shell/e-corba-storage.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-corba-storage.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 "e-corba-storage.h"

#include <glib.h>
#include <bonobo/bonobo-main.h>
#include <gal/util/e-util.h>

#include "Evolution.h"


#define PARENT_TYPE E_TYPE_STORAGE
static EStorageClass *parent_class = NULL;

typedef struct _StorageListenerServant StorageListenerServant;

struct _ECorbaStoragePrivate {
    char *name;

    GNOME_Evolution_Storage storage_interface;

    /* The Evolution::StorageListener interface we expose.  */

    GNOME_Evolution_StorageListener storage_listener_interface;
    StorageListenerServant *storage_listener_servant;
};


/* Implementation of the CORBA Evolution::StorageListener interface.  */

static POA_GNOME_Evolution_StorageListener__vepv storage_listener_vepv;

struct _StorageListenerServant {
    POA_GNOME_Evolution_StorageListener servant;
    EStorage *storage;
};

static StorageListenerServant *
storage_listener_servant_new (ECorbaStorage *corba_storage)
{
    StorageListenerServant *servant;

    servant = g_new0 (StorageListenerServant, 1);

    servant->servant.vepv = &storage_listener_vepv;

    gtk_object_ref (GTK_OBJECT (corba_storage));
    servant->storage = E_STORAGE (corba_storage);

    return servant;
}

static void
storage_listener_servant_free (StorageListenerServant *servant)
{
    gtk_object_unref (GTK_OBJECT (servant->storage));

    g_free (servant);
}

#if 0
static void
impl_StorageListener_destroy (PortableServer_Servant servant,
                  CORBA_Environment *ev)
{
    /* FIXME */
}
#endif

static void
impl_StorageListener_notifyFolderCreated (PortableServer_Servant servant,
                      const CORBA_char *path,
                      const GNOME_Evolution_Folder *folder,
                      CORBA_Environment *ev)
{
    StorageListenerServant *storage_listener_servant;
    EStorage *storage;
    EFolder *e_folder;

    storage_listener_servant = (StorageListenerServant *) servant;
    storage = storage_listener_servant->storage;

    e_folder = e_folder_new (folder->displayName,
                 folder->type,
                 folder->description);

    e_folder_set_physical_uri (e_folder, folder->physicalUri);
    e_folder_set_unread_count (e_folder, folder->unreadCount);

    if (! e_storage_new_folder (storage, path, e_folder)) {
        g_warning ("Cannot register folder -- %s %s\n", path, folder->displayName);
        CORBA_exception_set (ev,
                     CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_StorageListener_Exists,
                     NULL);
        gtk_object_unref (GTK_OBJECT (e_folder));
        return;
    }
}

static void
impl_StorageListener_notifyFolderUpdated (PortableServer_Servant servant,
                      const CORBA_char *path,
                      CORBA_long unread_count,
                      CORBA_Environment *ev)
{
    StorageListenerServant *storage_listener_servant;
    EStorage *storage;
    EFolder *e_folder;

    storage_listener_servant = (StorageListenerServant *) servant;
    storage = storage_listener_servant->storage;

    e_folder = e_storage_get_folder (storage, path);
    if (e_folder == NULL) {
        CORBA_exception_set (ev,
                     CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_StorageListener_NotFound,
                     NULL);
        return;
    }

    e_folder_set_unread_count (e_folder, unread_count);
}

static void
impl_StorageListener_notifyFolderRemoved (PortableServer_Servant servant,
                      const CORBA_char *path,
                      CORBA_Environment *ev)
{
    StorageListenerServant *storage_listener_servant;
    EStorage *storage;

    storage_listener_servant = (StorageListenerServant *) servant;
    storage = storage_listener_servant->storage;

    if (! e_storage_removed_folder (storage, path))
        CORBA_exception_set (ev,
                     CORBA_USER_EXCEPTION,
                     ex_GNOME_Evolution_StorageListener_NotFound,
                     NULL);
}


static gboolean
setup_storage_listener (ECorbaStorage *corba_storage)
{
    StorageListenerServant *servant;
    ECorbaStoragePrivate *priv;
    GNOME_Evolution_StorageListener storage_listener_interface;
    CORBA_Environment ev;

    priv = corba_storage->priv;

    servant = storage_listener_servant_new (corba_storage);

    CORBA_exception_init (&ev);

    POA_GNOME_Evolution_StorageListener__init (servant, &ev);
    if (ev._major != CORBA_NO_EXCEPTION)
        goto error;

    CORBA_free (PortableServer_POA_activate_object (bonobo_poa (), servant, &ev));
    if (ev._major != CORBA_NO_EXCEPTION)
        goto error;

    storage_listener_interface = PortableServer_POA_servant_to_reference (bonobo_poa (),
                                          servant, &ev);
    if (ev._major != CORBA_NO_EXCEPTION)
        goto error;

    priv->storage_listener_interface = storage_listener_interface;
    priv->storage_listener_servant = servant;

    return TRUE;

 error:
    storage_listener_servant_free (servant);
    CORBA_exception_free (&ev);
    return FALSE;
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    CORBA_Environment ev;
    ECorbaStorage *corba_storage;
    ECorbaStoragePrivate *priv;

    corba_storage = E_CORBA_STORAGE (object);
    priv = corba_storage->priv;

    g_free (priv->name);

    CORBA_exception_init (&ev);

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

    if (priv->storage_listener_interface != CORBA_OBJECT_NIL)
        CORBA_Object_release (priv->storage_listener_interface, &ev);

    if (priv->storage_listener_servant != NULL) {
        PortableServer_ObjectId *object_id;

        object_id = PortableServer_POA_servant_to_id (bonobo_poa (), priv->storage_listener_servant,
                                  &ev);
        PortableServer_POA_deactivate_object (bonobo_poa (), object_id, &ev);

        POA_GNOME_Evolution_StorageListener__fini (priv->storage_listener_servant, &ev);
        CORBA_free (object_id);
    }

    CORBA_exception_free (&ev);

    g_free (priv);

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


/* EStorage methods.  */

static const char *
get_name (EStorage *storage)
{
    ECorbaStorage *corba_storage;
    ECorbaStoragePrivate *priv;

    corba_storage = E_CORBA_STORAGE (storage);
    priv = corba_storage->priv;

    return priv->name;
}
static const char *
get_display_name (EStorage *storage)
{
    ECorbaStorage *corba_storage;
    ECorbaStoragePrivate *priv;

    corba_storage = E_CORBA_STORAGE (storage);
    priv = corba_storage->priv;

    /* FIXME: Abstract a display_name, return it.  Necessary
           changes to the IDL and EvolutionStorage required. */
    return priv->name;
}

struct async_folder_closure {
    EStorageResultCallback callback;
    EStorage *storage;
    void *data;
};

static void
async_folder_cb (BonoboListener *listener, char *event_name, 
         CORBA_any *any, CORBA_Environment *ev,
         gpointer user_data)
{
    struct async_folder_closure *closure = user_data;
    GNOME_Evolution_Storage_Result *corba_result;
    EStorageResult result;

    corba_result = any->_value;
    switch (*corba_result) {
    case GNOME_Evolution_Storage_OK:
        result = E_STORAGE_OK;
        break;
    case GNOME_Evolution_Storage_UNSUPPORTED_OPERATION:
        result = E_STORAGE_UNSUPPORTEDOPERATION;
        break;
    case GNOME_Evolution_Storage_UNSUPPORTED_TYPE:
        result = E_STORAGE_UNSUPPORTEDTYPE;
        break;
    case GNOME_Evolution_Storage_ALREADY_EXISTS:
        result = E_STORAGE_EXISTS;
        break;
    case GNOME_Evolution_Storage_DOES_NOT_EXIST:
        result = E_STORAGE_NOTFOUND;
        break;
    case GNOME_Evolution_Storage_PERMISSION_DENIED:
        result = E_STORAGE_PERMISSIONDENIED;
        break;
    case GNOME_Evolution_Storage_NO_SPACE:
        result = E_STORAGE_NOSPACE;
        break;
    case GNOME_Evolution_Storage_INVALID_URI:
    case GNOME_Evolution_Storage_NOT_EMPTY:
    case GNOME_Evolution_Storage_GENERIC_ERROR:
    default:
        result = E_STORAGE_GENERICERROR;
        break;
    }

    closure->callback (closure->storage, result, closure->data);
    bonobo_object_unref (BONOBO_OBJECT (listener));
    g_free (closure);
}

static void
async_create_folder (EStorage *storage, const char *path,
             const char *type, const char *description,
             EStorageResultCallback callback, void *data)
{
    ECorbaStorage *corba_storage;
    ECorbaStoragePrivate *priv;
    const char *parent_uri;
    char *p;
    BonoboListener *listener;
    Bonobo_Listener corba_listener;
    CORBA_Environment ev;
    struct async_folder_closure *closure;

    corba_storage = E_CORBA_STORAGE (storage);
    priv = corba_storage->priv;

    p = strrchr (path, '/');
    if (p && p != path) {
        char *parent_path;
        EFolder *parent;

        parent_path = g_strndup (path, p - path);
        parent = e_storage_get_folder (storage, parent_path);
        parent_uri = e_folder_get_physical_uri (parent);
    } else
        parent_uri = "";

    closure = g_new (struct async_folder_closure, 1);
    closure->callback = callback;
    closure->storage = storage;
    closure->data = data;
    listener = bonobo_listener_new (async_folder_cb, closure);
    corba_listener = bonobo_object_corba_objref (BONOBO_OBJECT (listener));

    CORBA_exception_init (&ev);
    GNOME_Evolution_Storage_asyncCreateFolder (priv->storage_interface,
                           path, type, description,
                           parent_uri,
                           corba_listener, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        callback (storage, E_STORAGE_GENERICERROR, data);
        bonobo_object_unref (BONOBO_OBJECT (listener));
        g_free (closure);
    }
    CORBA_exception_free (&ev);
}

static void
async_remove_folder (EStorage *storage, const char *path,
             EStorageResultCallback callback, void *data)
{
    ECorbaStorage *corba_storage;
    ECorbaStoragePrivate *priv;
    EFolder *folder;
    BonoboListener *listener;
    Bonobo_Listener corba_listener;
    CORBA_Environment ev;
    struct async_folder_closure *closure;

    corba_storage = E_CORBA_STORAGE (storage);
    priv = corba_storage->priv;

    folder = e_storage_get_folder (storage, path);
    if (e_folder_get_is_stock (folder))
        (* callback) (storage, E_STORAGE_CANTCHANGESTOCKFOLDER, data);

    closure = g_new (struct async_folder_closure, 1);
    closure->callback = callback;
    closure->storage = storage;
    closure->data = data;
    listener = bonobo_listener_new (async_folder_cb, closure);
    corba_listener = bonobo_object_corba_objref (BONOBO_OBJECT (listener));

    CORBA_exception_init (&ev);
    GNOME_Evolution_Storage_asyncRemoveFolder (priv->storage_interface,
                           path,
                           e_folder_get_physical_uri (folder),
                           corba_listener, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        callback (storage, E_STORAGE_GENERICERROR, data);
        bonobo_object_unref (BONOBO_OBJECT (listener));
        g_free (closure);
    }
    CORBA_exception_free (&ev);
}



static void
corba_class_init (void)
{
    POA_GNOME_Evolution_StorageListener__vepv *vepv;
    POA_GNOME_Evolution_StorageListener__epv *epv;
    PortableServer_ServantBase__epv *base_epv;

    base_epv = g_new0 (PortableServer_ServantBase__epv, 1);
    base_epv->_private    = NULL;
    base_epv->finalize    = NULL;
    base_epv->default_POA = NULL;

    epv = g_new0 (POA_GNOME_Evolution_StorageListener__epv, 1);
    epv->notifyFolderCreated = impl_StorageListener_notifyFolderCreated;
    epv->notifyFolderUpdated = impl_StorageListener_notifyFolderUpdated;
    epv->notifyFolderRemoved = impl_StorageListener_notifyFolderRemoved;

    vepv = &storage_listener_vepv;
    vepv->_base_epv                     = base_epv;
    vepv->GNOME_Evolution_StorageListener_epv = epv;
}

static void
class_init (ECorbaStorageClass *klass)
{
    GtkObjectClass *object_class;
    EStorageClass *storage_class;

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

    storage_class = E_STORAGE_CLASS (klass);
    storage_class->get_name = get_name;
    storage_class->get_display_name = get_display_name;
    storage_class->async_create_folder = async_create_folder;
    storage_class->async_remove_folder = async_remove_folder;

    corba_class_init ();

    parent_class = gtk_type_class (PARENT_TYPE);
}

static void
init (ECorbaStorage *corba_storage)
{
    ECorbaStoragePrivate *priv;

    priv = g_new (ECorbaStoragePrivate, 1);
    priv->name              = NULL;
    priv->storage_interface = CORBA_OBJECT_NIL;

    corba_storage->priv = priv;
}  


/* FIXME: OK to have a boolean construct function?  */
void
e_corba_storage_construct (ECorbaStorage *corba_storage,
               const char *toplevel_node_uri,
               const char *toplevel_node_type,
               const GNOME_Evolution_Storage storage_interface,
               const char *name)
{
    ECorbaStoragePrivate *priv;
    CORBA_Environment ev;

    g_return_if_fail (corba_storage != NULL);
    g_return_if_fail (E_IS_CORBA_STORAGE (corba_storage));
    g_return_if_fail (storage_interface != CORBA_OBJECT_NIL);
    g_return_if_fail (name != NULL);

    e_storage_construct (E_STORAGE (corba_storage), toplevel_node_uri, toplevel_node_type);

    priv = corba_storage->priv;

    priv->name = g_strdup (name);

    CORBA_exception_init (&ev);

    Bonobo_Unknown_ref (storage_interface, &ev);
    if (ev._major != CORBA_NO_EXCEPTION)
        g_warning ("e_corba_storage_construct() -- Cannot reference Bonobo object");
    else
        priv->storage_interface = CORBA_Object_duplicate (storage_interface, &ev);

    CORBA_exception_free (&ev);

    setup_storage_listener (corba_storage);
}

EStorage *
e_corba_storage_new (const char *toplevel_node_uri,
             const char *toplevel_node_type,
             const GNOME_Evolution_Storage storage_interface,
             const char *name)
{
    EStorage *new;

    g_return_val_if_fail (storage_interface != CORBA_OBJECT_NIL, NULL);
    g_return_val_if_fail (name != NULL, NULL);

    new = gtk_type_new (e_corba_storage_get_type ());

    e_corba_storage_construct (E_CORBA_STORAGE (new),
                   toplevel_node_uri,
                   toplevel_node_type,
                   storage_interface, name);

    return new;
}


const GNOME_Evolution_StorageListener
e_corba_storage_get_StorageListener (ECorbaStorage *corba_storage)
{
    g_return_val_if_fail (corba_storage != NULL, NULL);
    g_return_val_if_fail (E_IS_CORBA_STORAGE (corba_storage), NULL);

    return corba_storage->priv->storage_listener_interface;
}


E_MAKE_TYPE (e_corba_storage, "ECorbaStorage", ECorbaStorage, class_init, init, PARENT_TYPE)