/*
 * Copyright (C) 2003-2007 Imendio AB
 * Copyright (C) 2007-2011 Collabora Ltd.
 *
 * 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., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 *
 * Authors: Richard Hult <richard@imendio.com>
 *          Martyn Russell <martyn@imendio.com>
 *          Xavier Claessens <xclaesse@gmail.com>
 */

#ifndef __EMPATHY_UTILS_H__
#define __EMPATHY_UTILS_H__

#include <glib.h>
#include <glib-object.h>
#include <telepathy-glib/telepathy-glib.h>

#define EMPATHY_GET_PRIV(obj,type) ((type##Priv *) ((type *) obj)->priv)
#define EMP_STR_EMPTY(x) ((x) == NULL || (x)[0] == '\0')

/* Copied from wocky/wocky-utils.h */

#define empathy_implement_finish_void(source, tag) \
    if (g_simple_async_result_propagate_error (\
      G_SIMPLE_ASYNC_RESULT (result), error)) \
      return FALSE; \
    g_return_val_if_fail (g_simple_async_result_is_valid (result, \
            G_OBJECT(source), tag), \
        FALSE); \
    return TRUE;

#define empathy_implement_finish_copy_pointer(source, tag, copy_func, \
    out_param) \
    GSimpleAsyncResult *_simple; \
    _simple = (GSimpleAsyncResult *) result; \
    if (g_simple_async_result_propagate_error (_simple, error)) \
      return FALSE; \
    g_return_val_if_fail (g_simple_async_result_is_valid (result, \
            G_OBJECT (source), tag), \
        FALSE); \
    if (out_param != NULL) \
      *out_param = copy_func ( \
          g_simple_async_result_get_op_res_gpointer (_simple)); \
    return TRUE;

#define empathy_implement_finish_return_copy_pointer(source, tag, copy_func) \
    GSimpleAsyncResult *_simple; \
    _simple = (GSimpleAsyncResult *) result; \
    if (g_simple_async_result_propagate_error (_simple, error)) \
      return NULL; \
    g_return_val_if_fail (g_simple_async_result_is_valid (result, \
            G_OBJECT (source), tag), \
        NULL); \
    return copy_func (g_simple_async_result_get_op_res_gpointer (_simple));

#define empathy_implement_finish_return_pointer(source, tag) \
    GSimpleAsyncResult *_simple; \
    _simple = (GSimpleAsyncResult *) result; \
    if (g_simple_async_result_propagate_error (_simple, error)) \
      return NULL; \
    g_return_val_if_fail (g_simple_async_result_is_valid (result, \
            G_OBJECT (source), tag), \
        NULL); \
    return g_simple_async_result_get_op_res_gpointer (_simple);

#endif /*  __EMPATHY_UTILS_H__ */