1/* $OpenBSD: m_items.c,v 1.8 2023/10/17 09:52:10 nicm Exp $ */
2
3/****************************************************************************
4 * Copyright 2020,2021 Thomas E. Dickey                                     *
5 * Copyright 1998-2005,2010 Free Software Foundation, Inc.                  *
6 *                                                                          *
7 * Permission is hereby granted, free of charge, to any person obtaining a  *
8 * copy of this software and associated documentation files (the            *
9 * "Software"), to deal in the Software without restriction, including      *
10 * without limitation the rights to use, copy, modify, merge, publish,      *
11 * distribute, distribute with modifications, sublicense, and/or sell       *
12 * copies of the Software, and to permit persons to whom the Software is    *
13 * furnished to do so, subject to the following conditions:                 *
14 *                                                                          *
15 * The above copyright notice and this permission notice shall be included  *
16 * in all copies or substantial portions of the Software.                   *
17 *                                                                          *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
25 *                                                                          *
26 * Except as contained in this notice, the name(s) of the above copyright   *
27 * holders shall not be used in advertising or otherwise to promote the     *
28 * sale, use or other dealings in this Software without prior written       *
29 * authorization.                                                           *
30 ****************************************************************************/
31
32/****************************************************************************
33 *   Author:  Juergen Pfeifer, 1995,1997                                    *
34 ****************************************************************************/
35
36/***************************************************************************
37* Module m_items                                                           *
38* Connect and disconnect items to and from menus                           *
39***************************************************************************/
40
41#include "menu.priv.h"
42
43MODULE_ID("$Id: m_items.c,v 1.8 2023/10/17 09:52:10 nicm Exp $")
44
45/*---------------------------------------------------------------------------
46|   Facility      :  libnmenu
47|   Function      :  int set_menu_items(MENU *menu, ITEM **items)
48|
49|   Description   :  Sets the item pointer array connected to menu.
50|
51|   Return Values :  E_OK           - success
52|                    E_POSTED       - menu is already posted
53|                    E_CONNECTED    - one or more items are already connected
54|                                     to another menu.
55|                    E_BAD_ARGUMENT - An incorrect menu or item array was
56|                                     passed to the function
57+--------------------------------------------------------------------------*/
58MENU_EXPORT(int)
59set_menu_items(MENU *menu, ITEM **items)
60{
61  T((T_CALLED("set_menu_items(%p,%p)"), (void *)menu, (void *)items));
62
63  if (!menu || (items && !(*items)))
64    RETURN(E_BAD_ARGUMENT);
65
66  if (menu->status & _POSTED)
67    RETURN(E_POSTED);
68
69  if (menu->items)
70    _nc_Disconnect_Items(menu);
71
72  if (items)
73    {
74      if (!_nc_Connect_Items(menu, items))
75	RETURN(E_CONNECTED);
76    }
77
78  menu->items = items;
79  RETURN(E_OK);
80}
81
82/*---------------------------------------------------------------------------
83|   Facility      :  libnmenu
84|   Function      :  ITEM **menu_items(const MENU *menu)
85|
86|   Description   :  Returns a pointer to the item pointer array of the menu
87|
88|   Return Values :  NULL on error
89+--------------------------------------------------------------------------*/
90MENU_EXPORT(ITEM **)
91menu_items(const MENU *menu)
92{
93  T((T_CALLED("menu_items(%p)"), (const void *)menu));
94  returnItemPtr(menu ? menu->items : (ITEM **)0);
95}
96
97/*---------------------------------------------------------------------------
98|   Facility      :  libnmenu
99|   Function      :  int item_count(const MENU *menu)
100|
101|   Description   :  Get the number of items connected to the menu. If the
102|                    menu pointer is NULL we return -1.
103|
104|   Return Values :  Number of items or -1 to indicate error.
105+--------------------------------------------------------------------------*/
106MENU_EXPORT(int)
107item_count(const MENU *menu)
108{
109  T((T_CALLED("item_count(%p)"), (const void *)menu));
110  returnCode(menu ? menu->nitems : -1);
111}
112
113/* m_items.c ends here */
114