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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: 8; c-basic-offset: 8 -*- */
/*
* Nautilus
*
* Copyright (C) 2000 Eazel, Inc.
*
* Nautilus 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.
*
* Nautilus 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* nautilus-component-adapter-factory.c - client wrapper for the
* special adapter component, which wraps Bonobo components as
* Nautilus Views and in the process keeps evil syncrhonous I/O out of
* the Nautilus process itself.
*/
#include <config.h>
#include "nautilus-component-adapter-factory.h"
#include <libnautilus-adapter/nautilus-adapter-factory.h>
#include <libnautilus-extensions/nautilus-gtk-macros.h>
#define NAUTILUS_COMPONENT_ADAPTER_FACTORY_IID "OAFIID:nautilus_adapter_factory:fd24ecfc-0a6e-47ab-bc53-69d7487c6ad4"
struct NautilusComponentAdapterFactoryDetails {
Nautilus_ComponentAdapterFactory corba_factory;
};
static void nautilus_component_adapter_factory_initialize_class (NautilusComponentAdapterFactoryClass *klass);
static void nautilus_component_adapter_factory_initialize (NautilusComponentAdapterFactory *factory);
static void nautilus_component_adapter_factory_destroy (GtkObject *object);
NAUTILUS_DEFINE_CLASS_BOILERPLATE (NautilusComponentAdapterFactory, nautilus_component_adapter_factory, GTK_TYPE_OBJECT)
static void
nautilus_component_adapter_factory_initialize_class (NautilusComponentAdapterFactoryClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*) klass;
object_class->destroy = nautilus_component_adapter_factory_destroy;
}
static void
nautilus_component_adapter_factory_initialize (NautilusComponentAdapterFactory *factory)
{
BonoboObjectClient *object_client;
factory->details = g_new0 (NautilusComponentAdapterFactoryDetails, 1);
object_client = bonobo_object_activate (NAUTILUS_COMPONENT_ADAPTER_FACTORY_IID, 0);
if (object_client != NULL) {
factory->details->corba_factory = bonobo_object_query_interface
(BONOBO_OBJECT (object_client), "IDL:Nautilus/ComponentAdapterFactory:1.0");
bonobo_object_unref (BONOBO_OBJECT (object_client));
}
}
static void
nautilus_component_adapter_factory_destroy (GtkObject *object)
{
NautilusComponentAdapterFactory *factory;
factory = NAUTILUS_COMPONENT_ADAPTER_FACTORY (object);
if (factory->details->corba_factory != CORBA_OBJECT_NIL) {
bonobo_object_release_unref (factory->details->corba_factory, NULL);
}
g_free (factory->details);
}
static NautilusComponentAdapterFactory *global_component_adapter_factory = NULL;
static void
component_adapter_factory_at_exit_destructor (void)
{
if (global_component_adapter_factory != NULL) {
gtk_object_unref (GTK_OBJECT (global_component_adapter_factory));
}
global_component_adapter_factory = NULL;
}
NautilusComponentAdapterFactory *
nautilus_component_adapter_factory_get (void)
{
if (global_component_adapter_factory == NULL) {
global_component_adapter_factory = NAUTILUS_COMPONENT_ADAPTER_FACTORY
(gtk_object_new (NAUTILUS_TYPE_COMPONENT_ADAPTER_FACTORY, NULL));
gtk_object_ref (GTK_OBJECT (global_component_adapter_factory));
gtk_object_sink (GTK_OBJECT (global_component_adapter_factory));
g_atexit (component_adapter_factory_at_exit_destructor);
}
if (global_component_adapter_factory->details->corba_factory == CORBA_OBJECT_NIL) {
gtk_object_unref (GTK_OBJECT (global_component_adapter_factory));
global_component_adapter_factory = NULL;
}
return global_component_adapter_factory;
}
Nautilus_View
nautilus_component_adapter_factory_create_adapter (NautilusComponentAdapterFactory *factory,
BonoboObjectClient *component)
{
Nautilus_View nautilus_view;
Bonobo_Control bonobo_control;
CORBA_Environment ev;
nautilus_view = bonobo_object_client_query_interface
(component, "IDL:Nautilus/View:1.0", NULL);
CORBA_exception_init (&ev);
if (!CORBA_Object_is_nil (nautilus_view, &ev)) {
/* Object has the View interface, great! We might not
need to adapt it. */
bonobo_control = bonobo_object_client_query_interface
(component, "IDL:Bonobo/Control:1.0", NULL);
if (!CORBA_Object_is_nil (bonobo_control, &ev)) {
/* It has the control interface too, so all is peachy. */
bonobo_object_release_unref (bonobo_control, &ev);
CORBA_exception_free (&ev);
return nautilus_view;
} else {
/* No control interface; we have no way to
support a View that doesn't also support
the Control interface, so fail. */
bonobo_object_release_unref (nautilus_view, &ev);
CORBA_exception_free (&ev);
return CORBA_OBJECT_NIL;
}
} else {
/* No View interface, we must adapt the object */
CORBA_exception_free (&ev);
CORBA_exception_init (&ev);
nautilus_view = Nautilus_ComponentAdapterFactory_create_adapter
(factory->details->corba_factory,
bonobo_object_corba_objref (BONOBO_OBJECT (component)),
&ev);
if (ev._major != CORBA_NO_EXCEPTION) {
nautilus_view = CORBA_OBJECT_NIL;
}
CORBA_exception_free (&ev);
return nautilus_view;
}
}
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