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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* nautilus-scroll-positionable.c - public interface for objects that implement
* scroll positioning
*
* Copyright (C) 2003 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
#include "nautilus-scroll-positionable.h"
#include <config.h>
#include <string.h>
#include <bonobo/bonobo-i18n.h>
#include <bonobo/bonobo-exception.h>
#include <eel/eel-marshal.h>
enum {
GET_FIRST_VISIBLE_FILE,
SCROLL_TO_FILE,
LAST_SIGNAL
};
static guint signals [LAST_SIGNAL];
BONOBO_CLASS_BOILERPLATE_FULL (NautilusScrollPositionable, nautilus_scroll_positionable, Nautilus_ScrollPositionable,
BonoboObject, BONOBO_OBJECT_TYPE)
static Nautilus_URI
impl_Nautilus_Scroll_Positionable_get_first_visible_file (PortableServer_Servant servant,
CORBA_Environment *ev)
{
NautilusScrollPositionable *positionable;
char *uri;
char *ret;
positionable = NAUTILUS_SCROLL_POSITIONABLE (bonobo_object_from_servant (servant));
uri = NULL;
g_signal_emit (G_OBJECT (positionable), signals [GET_FIRST_VISIBLE_FILE],
0, &uri);
if (uri) {
ret = CORBA_string_dup (uri);
g_free (uri);
} else {
ret = CORBA_string_dup ("");
}
return ret;
}
static void
impl_Nautilus_Scroll_Positionable_scroll_to_file (PortableServer_Servant servant,
const CORBA_char *uri,
CORBA_Environment *ev)
{
NautilusScrollPositionable *positionable;
positionable = NAUTILUS_SCROLL_POSITIONABLE (bonobo_object_from_servant (servant));
g_signal_emit (G_OBJECT (positionable),
signals [SCROLL_TO_FILE], 0,
uri);
}
static char *
nautilus_scroll_positionable_get_first_visible_file (NautilusScrollPositionable *positionable)
{
return NULL;
}
static void
nautilus_scroll_positionable_instance_init (NautilusScrollPositionable *positionable)
{
}
static void
nautilus_scroll_positionable_finalize (GObject *object)
{
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
single_string_accumulator (GSignalInvocationHint *ihint,
GValue *return_accu,
const GValue *handler_return,
gpointer dummy)
{
gboolean continue_emission;
const gchar *str;
str = g_value_get_string (handler_return);
g_value_set_string (return_accu, str);
continue_emission = str == NULL;
return continue_emission;
}
static void
nautilus_scroll_positionable_class_init (NautilusScrollPositionableClass *klass)
{
POA_Nautilus_ScrollPositionable__epv *epv = &klass->epv;
GObjectClass *object_class;
object_class = (GObjectClass *) klass;
klass->get_first_visible_file = nautilus_scroll_positionable_get_first_visible_file;
object_class->finalize = nautilus_scroll_positionable_finalize;
signals [GET_FIRST_VISIBLE_FILE] =
g_signal_new ("get_first_visible_file",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (NautilusScrollPositionableClass, get_first_visible_file),
single_string_accumulator, NULL,
eel_marshal_STRING__VOID,
G_TYPE_STRING, 0);
signals [SCROLL_TO_FILE] =
g_signal_new ("scroll_to_file",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (NautilusScrollPositionableClass, scroll_to_file),
NULL, NULL,
g_cclosure_marshal_VOID__STRING,
G_TYPE_NONE, 1, G_TYPE_STRING);
epv->scroll_to_file = impl_Nautilus_Scroll_Positionable_scroll_to_file;
epv->get_first_visible_file = impl_Nautilus_Scroll_Positionable_get_first_visible_file;
}
NautilusScrollPositionable *
nautilus_scroll_positionable_new (void)
{
return g_object_new (nautilus_scroll_positionable_get_type (), NULL);
}
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