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/*
* AT-SPI - Assistive Technology Service Provider Interface
* (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
*
* Copyright 2008 Novell, 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.
*/
#include <stdlib.h>
#include <glib.h>
#include <glib-object.h>
#include <dbus/dbus.h>
#include "de-types.h"
dbus_bool_t spi_dbus_message_iter_get_struct(DBusMessageIter *iter, ...)
{
va_list args;
DBusMessageIter iter_struct;
int type;
void *ptr;
dbus_message_iter_recurse(iter, &iter_struct);
va_start(args, iter);
for (;;)
{
type = va_arg(args, int);
if (type == DBUS_TYPE_INVALID) break;
if (type != dbus_message_iter_get_arg_type(&iter_struct))
{
va_end(args);
return FALSE;
}
ptr = va_arg(args, void *);
dbus_message_iter_get_basic(&iter_struct, ptr);
dbus_message_iter_next(&iter_struct);
}
dbus_message_iter_next(iter);
va_end(args);
return TRUE;
}
dbus_bool_t spi_dbus_message_iter_append_struct(DBusMessageIter *iter, ...)
{
va_list args;
DBusMessageIter iter_struct;
int type;
void *ptr;
if (!dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT, NULL, &iter_struct)) return FALSE;
va_start(args, iter);
for (;;)
{
type = va_arg(args, int);
if (type == DBUS_TYPE_INVALID) break;
ptr = va_arg(args, void *);
dbus_message_iter_append_basic(&iter_struct, type, ptr);
}
if (!dbus_message_iter_close_container(iter, &iter_struct)) return FALSE;
va_end(args);
return TRUE;
}
dbus_bool_t spi_dbus_marshal_deviceEvent(DBusMessage *message, const Accessibility_DeviceEvent *e)
{
DBusMessageIter iter;
if (!message) return FALSE;
dbus_message_iter_init_append(message, &iter);
return spi_dbus_message_iter_append_struct(&iter, DBUS_TYPE_UINT32, &e->type, DBUS_TYPE_INT32, &e->id, DBUS_TYPE_UINT32, &e->hw_code, DBUS_TYPE_UINT32, &e->modifiers, DBUS_TYPE_INT32, &e->timestamp, DBUS_TYPE_STRING, &e->event_string, DBUS_TYPE_BOOLEAN, &e->is_text, DBUS_TYPE_INVALID);
}
dbus_bool_t spi_dbus_demarshal_deviceEvent(DBusMessage *message, Accessibility_DeviceEvent *e)
{
DBusMessageIter iter;
dbus_uint16_t hw_code;
dbus_uint16_t modifiers;
dbus_message_iter_init(message, &iter);
if (spi_dbus_message_iter_get_struct(&iter, DBUS_TYPE_UINT32, &e->type, DBUS_TYPE_INT32, &e->id, DBUS_TYPE_INT32, &e->hw_code, DBUS_TYPE_INT32, &e->modifiers, DBUS_TYPE_INT32, &e->timestamp, DBUS_TYPE_STRING, &e->event_string, DBUS_TYPE_BOOLEAN, &e->is_text, DBUS_TYPE_INVALID))
return TRUE;
/* TODO: Perhaps remove the below code for 2.1 */
if (!spi_dbus_message_iter_get_struct(&iter, DBUS_TYPE_UINT32, &e->type, DBUS_TYPE_INT32, &e->id, DBUS_TYPE_INT16, &hw_code, DBUS_TYPE_INT16, &modifiers, DBUS_TYPE_INT32, &e->timestamp, DBUS_TYPE_STRING, &e->event_string, DBUS_TYPE_BOOLEAN, &e->is_text, DBUS_TYPE_INVALID))
return FALSE;
e->hw_code = hw_code;
e->modifiers = modifiers;
return TRUE;
}
/*
* This is a rather annoying function needed to replace
* NULL values of strings with the empty string. Null string
* values can be created by the atk_object_get_name or text selection
*/
static const void *
provide_defaults(const gint type,
const void *val)
{
switch (type)
{
case DBUS_TYPE_STRING:
case DBUS_TYPE_OBJECT_PATH:
if (!val)
return "";
else
return val;
default:
return val;
}
}
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