/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-component-registry.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 "e-component-registry.h"
#include <glib.h>
#include <gtk/gtktypeutils.h>
#include <gal/util/e-util.h>
#include "Evolution.h"
#include "e-shell-utils.h"
#include "evolution-shell-component-client.h"
#define PARENT_TYPE GTK_TYPE_OBJECT
static GtkObjectClass *parent_class = NULL;
typedef struct _Component Component;
struct _Component {
char *id;
EvolutionShellComponentClient *client;
/* Names of the folder types we support (normal ASCII strings). */
GList *folder_type_names;
};
struct _EComponentRegistryPrivate {
EShell *shell;
GHashTable *component_id_to_component;
};
/* Component information handling. */
static Component *
component_new (const char *id,
EvolutionShellComponentClient *client)
{
Component *new;
bonobo_object_ref (BONOBO_OBJECT (client));
new = g_new (Component, 1);
new->id = g_strdup (id);
new->folder_type_names = NULL;
new->client = client;
return new;
}
static void
component_free (Component *component)
{
GNOME_Evolution_ShellComponent corba_shell_component;
CORBA_Environment ev;
CORBA_exception_init (&ev);
corba_shell_component = bonobo_object_corba_objref (BONOBO_OBJECT (component->client));
GNOME_Evolution_ShellComponent_unsetOwner (corba_shell_component, &ev);
if (ev._major != CORBA_NO_EXCEPTION)
g_warning ("Cannot unregister component -- %s", component->id);
else
g_print ("Component unregistered successfully -- %s\n", component->id);
CORBA_exception_free (&ev);
g_free (component->id);
bonobo_object_unref (BONOBO_OBJECT (component->client));
e_free_string_list (component->folder_type_names);
g_free (component);
}
static gboolean
register_type (EComponentRegistry *component_registry,
const char *name,
const char *icon_name,
int num_exported_dnd_types,
const char **exported_dnd_types,
int num_accepted_dnd_types,
const char **accepted_dnd_types,
Component *handler)
{
EComponentRegistryPrivate *priv;
EFolderTypeRegistry *folder_type_registry;
priv = component_registry->priv;
folder_type_registry = e_shell_get_folder_type_registry (priv->shell);
g_assert (folder_type_registry != NULL);
if (! e_folder_type_registry_register_type (folder_type_registry,
name, icon_name,
num_exported_dnd_types,
exported_dnd_types,
num_accepted_dnd_types,
accepted_dnd_types)) {
g_warning ("Trying to register duplicate folder type -- %s", name);
return FALSE;
}
e_folder_type_registry_set_handler_for_type (folder_type_registry, name, handler->client);
return TRUE;
}
static gboolean
register_component (EComponentRegistry *component_registry,
const char *id)
{
EComponentRegistryPrivate *priv;
GNOME_Evolution_ShellComponent component_corba_interface;
GNOME_Evolution_Shell shell_corba_interface;
GNOME_Evolution_FolderTypeList *supported_types;
Component *component;
EvolutionShellComponentClient *client;
CORBA_Environment ev;
CORBA_unsigned_long i;
priv = component_registry->priv;
if (g_hash_table_lookup (priv->component_id_to_component, id) != NULL) {
g_warning ("Trying to register component twice -- %s", id);
return FALSE;
}
client = evolution_shell_component_client_new (id);
if (client == NULL)
return FALSE;
CORBA_exception_init (&ev);
/* FIXME we could use the EvolutionShellComponentClient API here instead, but for
now we don't care. */
component_corba_interface = bonobo_object_corba_objref (BONOBO_OBJECT (client));
shell_corba_interface = bonobo_object_corba_objref (BONOBO_OBJECT (priv->shell));
supported_types = GNOME_Evolution_ShellComponent__get_supported_types (component_corba_interface, &ev);
if (ev._major != CORBA_NO_EXCEPTION || supported_types->_length == 0) {
bonobo_object_unref (BONOBO_OBJECT (client));
CORBA_exception_free (&ev);
return FALSE;
}
CORBA_exception_free (&ev);
component = component_new (id, client);
g_hash_table_insert (priv->component_id_to_component, component->id, component);
bonobo_object_unref (BONOBO_OBJECT (client));
for (i = 0; i < supported_types->_length; i++) {
const GNOME_Evolution_FolderType *type;
type = supported_types->_buffer + i;
if (! register_type (component_registry,
type->name, type->icon_name,
type->exported_dnd_types._length,
(const char **) type->exported_dnd_types._buffer,
type->accepted_dnd_types._length,
(const char **) type->accepted_dnd_types._buffer,
component)) {
g_warning ("Cannot register type `%s' for component %s",
type->name, component->id);
} else {
g_print ("Registered type for component -- (%s) %s\n",
type->name, component->id);
}
}
CORBA_free (supported_types);
return TRUE;
}
/* GtkObject methods. */
static void
component_id_foreach_free (void *key,
void *value,
void *user_data)
{
Component *component;
component = (Component *) value;
component_free (component);
}
static void
destroy (GtkObject *object)
{
EComponentRegistry *component_registry;
EComponentRegistryPrivate *priv;
component_registry = E_COMPONENT_REGISTRY (object);
priv = component_registry->priv;
bonobo_object_unref (BONOBO_OBJECT (priv->shell));
g_hash_table_foreach (priv->component_id_to_component, component_id_foreach_free, NULL);
g_hash_table_destroy (priv->component_id_to_component);
g_free (priv);
}
static void
class_init (EComponentRegistryClass *klass)
{
GtkObjectClass *object_class;
object_class = GTK_OBJECT_CLASS (klass);
object_class->destroy = destroy;
parent_class = gtk_type_class (gtk_object_get_type ());
}
static void
init (EComponentRegistry *component_registry)
{
EComponentRegistryPrivate *priv;
priv = g_new (EComponentRegistryPrivate, 1);
priv->shell = NULL;
priv->component_id_to_component = g_hash_table_new (g_str_hash, g_str_equal);
component_registry->priv = priv;
}
void
e_component_registry_construct (EComponentRegistry *component_registry,
EShell *shell)
{
EComponentRegistryPrivate *priv;
g_return_if_fail (component_registry != NULL);
g_return_if_fail (E_IS_COMPONENT_REGISTRY (component_registry));
g_return_if_fail (shell != NULL);
g_return_if_fail (E_IS_SHELL (shell));
priv = component_registry->priv;
bonobo_object_ref (BONOBO_OBJECT (shell));
priv->shell = shell;
}
EComponentRegistry *
e_component_registry_new (EShell *shell)
{
EComponentRegistry *component_registry;
g_return_val_if_fail (shell != NULL, NULL);
g_return_val_if_fail (E_IS_SHELL (shell), NULL);
component_registry = gtk_type_new (e_component_registry_get_type ());
e_component_registry_construct (component_registry, shell);
return component_registry;
}
gboolean
e_component_registry_register_component (EComponentRegistry *component_registry,
const char *id)
{
g_return_val_if_fail (component_registry != NULL, FALSE);
g_return_val_if_fail (E_IS_COMPONENT_REGISTRY (component_registry), FALSE);
g_return_val_if_fail (id != NULL, FALSE);
return register_component (component_registry, id);
}
static void
compose_id_list_foreach (void *key,
void *value,
void *data)
{
GList **listp;
const char *id;
listp = (GList **) data;
id = (const char *) key;
*listp = g_list_prepend (*listp, g_strdup (id));
}
/**
* e_component_registry_get_id_list:
* @component_registry:
*
* Get the list of components registered.
*
* Return value: A GList of strings containining the IDs for all the registered
* components. The list must be freed by the caller when not used anymore.
**/
GList *
e_component_registry_get_id_list (EComponentRegistry *component_registry)
{
EComponentRegistryPrivate *priv;
GList *list;
g_return_val_if_fail (component_registry != NULL, NULL);
g_return_val_if_fail (E_IS_COMPONENT_REGISTRY (component_registry), NULL);
priv = component_registry->priv;
list = NULL;
g_hash_table_foreach (priv->component_id_to_component, compose_id_list_foreach, &list);
return list;
}
/**
* e_component_registry_get_component_by_id:
* @component_registry:
* @id: The component's OAF ID
*
* Get the registered component client for the specified ID. If that component
* is not registered, return NULL.
*
* Return value: A pointer to the ShellComponentClient for that component.
**/
EvolutionShellComponentClient *
e_component_registry_get_component_by_id (EComponentRegistry *component_registry,
const char *id)
{
EComponentRegistryPrivate *priv;
const Component *component;
g_return_val_if_fail (component_registry != NULL, NULL);
g_return_val_if_fail (E_IS_COMPONENT_REGISTRY (component_registry), NULL);
g_return_val_if_fail (id != NULL, NULL);
priv = component_registry->priv;
component = g_hash_table_lookup (priv->component_id_to_component, id);
if (component == NULL)
return NULL;
return component->client;
}
E_MAKE_TYPE (e_component_registry, "EComponentRegistry", EComponentRegistry,
class_init, init, PARENT_TYPE)
