1 /* $OpenBSD: m_item_cur.c,v 1.8 2023/10/17 09:52:10 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2020,2021 Thomas E. Dickey *
5 * Copyright 1998-2004,2010 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_item_cur *
38 * Set and get current menus item *
39 ***************************************************************************/
40
41 #include "menu.priv.h"
42
43 MODULE_ID("$Id: m_item_cur.c,v 1.8 2023/10/17 09:52:10 nicm Exp $")
44
45 /*---------------------------------------------------------------------------
46 | Facility : libnmenu
47 | Function : int set_current_item(MENU *menu, const ITEM *item)
48 |
49 | Description : Make the item the current item
50 |
51 | Return Values : E_OK - success
52 +--------------------------------------------------------------------------*/
MENU_EXPORT(int)53 MENU_EXPORT(int)
54 set_current_item(MENU *menu, ITEM *item)
55 {
56 T((T_CALLED("set_current_item(%p,%p)"), (void *)menu, (void *)item));
57
58 if (menu && item && (item->imenu == menu))
59 {
60 if (menu->status & _IN_DRIVER)
61 RETURN(E_BAD_STATE);
62
63 assert(menu->curitem);
64 if (item != menu->curitem)
65 {
66 if (menu->status & _LINK_NEEDED)
67 {
68 /*
69 * Items are available, but they are not linked together.
70 * So we have to link here.
71 */
72 _nc_Link_Items(menu);
73 }
74 assert(menu->pattern);
75 Reset_Pattern(menu);
76 /* adjust the window to make item visible and update the menu */
77 Adjust_Current_Item(menu, menu->toprow, item);
78 }
79 }
80 else
81 RETURN(E_BAD_ARGUMENT);
82
83 RETURN(E_OK);
84 }
85
86 /*---------------------------------------------------------------------------
87 | Facility : libnmenu
88 | Function : ITEM *current_item(const MENU *menu)
89 |
90 | Description : Return the menus current item
91 |
92 | Return Values : Item pointer or NULL if failure
93 +--------------------------------------------------------------------------*/
94 MENU_EXPORT(ITEM *)
current_item(const MENU * menu)95 current_item(const MENU *menu)
96 {
97 T((T_CALLED("current_item(%p)"), (const void *)menu));
98 returnItem((menu && menu->items) ? menu->curitem : (ITEM *)0);
99 }
100
101 /*---------------------------------------------------------------------------
102 | Facility : libnmenu
103 | Function : int item_index(const ITEM *)
104 |
105 | Description : Return the logical index of this item.
106 |
107 | Return Values : The index or ERR if this is an invalid item pointer
108 +--------------------------------------------------------------------------*/
109 MENU_EXPORT(int)
item_index(const ITEM * item)110 item_index(const ITEM *item)
111 {
112 T((T_CALLED("item_index(%p)"), (const void *)item));
113 returnCode((item && item->imenu) ? item->index : ERR);
114 }
115
116 /* m_item_cur.c ends here */
117