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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Iain Holmes  <iain@ximian.com>
 *
 * Based on evolution-shell-component-client.c by Ettore Perazzoli
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include "evolution-importer-client.h"

#include <glib.h>
#include <bonobo/bonobo-object.h>
#include <bonobo/bonobo-main.h>
#include <bonobo/bonobo-widget.h>
#include <bonobo/bonobo-exception.h>

#include "GNOME_Evolution_Importer.h"

G_DEFINE_TYPE (EvolutionImporterClient, evolution_importer_client, G_TYPE_OBJECT)


static void
finalise (GObject *object)
{
    /* FIXME: should this unref the client->objref?? */

    (* G_OBJECT_CLASS (evolution_importer_client_parent_class)->finalize) (object);
}

static void
evolution_importer_client_class_init (EvolutionImporterClientClass *klass)
{
    GObjectClass *object_class;

    object_class = G_OBJECT_CLASS (klass);

    object_class->finalize = finalise;
}

static void
evolution_importer_client_init (EvolutionImporterClient *client)
{
}

/**
 * evolution_importer_client_new:
 * @objref: The CORBA_Object to make a client for.
 *
 * Makes a client for @objref. @objref should be an Evolution_Importer.
 *
 * Returns: A newly created EvolutionImporterClient.
 */
EvolutionImporterClient *
evolution_importer_client_new (const CORBA_Object objref)
{
    EvolutionImporterClient *client;

    g_return_val_if_fail (objref != CORBA_OBJECT_NIL, NULL);

    client = g_object_new (evolution_importer_client_get_type (), NULL);
    client->objref = objref;

    return client;
}

/**
 * evolution_importer_client_new_from_id:
 * @id: The oafiid of the component to make a client for.
 *
 * Makes a client for the object returned by activating @id.
 *
 * Returns: A newly created EvolutionImporterClient.
 */
EvolutionImporterClient *
evolution_importer_client_new_from_id (const gchar *id)
{
    CORBA_Environment ev;
    CORBA_Object objref;

    g_return_val_if_fail (id != NULL, NULL);

    CORBA_exception_init (&ev);
    objref = bonobo_activation_activate_from_id ((gchar *) id, 0, NULL, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        CORBA_exception_free (&ev);
        g_warning ("Could not start %s.", id);
        return NULL;
    }

    CORBA_exception_free (&ev);
    if (objref == CORBA_OBJECT_NIL) {
        g_warning ("Could not activate component %s", id);
        return NULL;
    }

    return evolution_importer_client_new (objref);
}

/* API */
GtkWidget *
evolution_importer_client_create_control (EvolutionImporterClient *client)
{
    GNOME_Evolution_Importer corba_importer;
    GtkWidget *widget = NULL;
    Bonobo_Control control;
    CORBA_Environment ev;

    g_return_val_if_fail (client != NULL, NULL);
    g_return_val_if_fail (EVOLUTION_IS_IMPORTER_CLIENT (client), NULL);

    CORBA_exception_init (&ev);
    corba_importer = client->objref;
    GNOME_Evolution_Importer_createControl (corba_importer, &control, &ev);

    if (!BONOBO_EX (&ev)) {
        /* FIXME Pass in container? */
        widget = bonobo_widget_new_control_from_objref (control, NULL);
        gtk_widget_show (widget);
    }

    CORBA_exception_free (&ev);

    return widget;
}

/**
 * evolution_importer_client_support_format:
 * @client: The EvolutionImporterClient.
 * @filename: Name of the file to check.
 *
 * Checks whether @client is able to import @filename.
 *
 * Returns: TRUE if @client can import @filename, FALSE otherwise.
 */
gboolean
evolution_importer_client_support_format (EvolutionImporterClient *client,
                      const gchar *filename)
{
    GNOME_Evolution_Importer corba_importer;
    gboolean result;
    CORBA_Environment ev;

    g_return_val_if_fail (client != NULL, FALSE);
    g_return_val_if_fail (EVOLUTION_IS_IMPORTER_CLIENT (client), FALSE);
    g_return_val_if_fail (filename != NULL, FALSE);

    CORBA_exception_init (&ev);
    corba_importer = client->objref;
    result = GNOME_Evolution_Importer_supportFormat (corba_importer,
                             filename, &ev);
    CORBA_exception_free (&ev);

    return result;
}

/**
 * evolution_importer_client_load_file:
 * @client: The EvolutionImporterClient.
 * @filename: The file to load.
 * @physical_uri: The physical URI of the folder to import data into.
 * @folder_type: The type of the folder represented by @physical_uri.
 *
 * Loads and initialises the importer.
 *
 * Returns: TRUE on sucess, FALSE on failure.
 */
gboolean
evolution_importer_client_load_file (EvolutionImporterClient *client, const gchar *filename)
{
    GNOME_Evolution_Importer corba_importer;
    gboolean result;
    CORBA_Environment ev;

    g_return_val_if_fail (client != NULL, FALSE);
    g_return_val_if_fail (EVOLUTION_IS_IMPORTER_CLIENT (client), FALSE);
    g_return_val_if_fail (filename != NULL, FALSE);

    CORBA_exception_init (&ev);
    corba_importer = client->objref;
    result = GNOME_Evolution_Importer_loadFile (corba_importer, filename, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_warning ("Oh there *WAS* an exception.\nIt was %s",
               CORBA_exception_id (&ev));
        CORBA_exception_free (&ev);
        return FALSE;
    }
    CORBA_exception_free (&ev);

    return result;
}

/**
 * evolution_importer_client_process_item:
 * @client: The EvolutionImporterClient.
 * @listener: The EvolutionImporterListener.
 *
 * Starts importing the next item in the file. @listener will be notified
 * when the item has finished.
 */
void
evolution_importer_client_process_item (EvolutionImporterClient *client,
                    EvolutionImporterListener *listener)
{
    GNOME_Evolution_Importer corba_importer;
    GNOME_Evolution_ImporterListener corba_listener;
    CORBA_Environment ev;

    g_return_if_fail (client != NULL);
    g_return_if_fail (EVOLUTION_IS_IMPORTER_CLIENT (client));
    g_return_if_fail (listener != NULL);
    g_return_if_fail (EVOLUTION_IS_IMPORTER_LISTENER (listener));

    CORBA_exception_init (&ev);

    corba_importer = client->objref;
    corba_listener = bonobo_object_corba_objref (BONOBO_OBJECT (listener));
    GNOME_Evolution_Importer_processItem (corba_importer,
                          corba_listener, &ev);
    CORBA_exception_free (&ev);
}

/**
 * evolution_importer_client_get_error:
 * @client: The EvolutionImporterClient.
 *
 * Gets the error as a string.
 *
 * Returns: The error as a string. If there is no error NULL is returned.
 * Importers need not support this method and if so, NULL is also returned.
 */
const gchar *
evolution_importer_client_get_error (EvolutionImporterClient *client)
{
    GNOME_Evolution_Importer corba_importer;
    CORBA_char *str;
    CORBA_Environment ev;

    g_return_val_if_fail (client != NULL, NULL);
    g_return_val_if_fail (EVOLUTION_IS_IMPORTER_CLIENT (client), NULL);

    corba_importer = client->objref;

    CORBA_exception_init (&ev);
    str = GNOME_Evolution_Importer_getError (corba_importer, &ev);

    return str;
}