1/****************************************************************************
2 * Copyright (c) 1998-2006,2009 Free Software Foundation, Inc.              *
3 *                                                                          *
4 * Permission is hereby granted, free of charge, to any person obtaining a  *
5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
7 * without limitation the rights to use, copy, modify, merge, publish,      *
8 * distribute, distribute with modifications, sublicense, and/or sell       *
9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Thomas E. Dickey                        1997-on                 *
31 *     and: Juergen Pfeifer                         2009                    *
32 ****************************************************************************/
33
34#include <curses.priv.h>
35
36MODULE_ID("$Id: define_key.c,v 1.20 2009/11/28 22:53:17 tom Exp $")
37
38NCURSES_EXPORT(int)
39NCURSES_SP_NAME(define_key) (NCURSES_SP_DCLx const char *str, int keycode)
40{
41    int code = ERR;
42
43    T((T_CALLED("define_key(%p, %s,%d)"), (void *) SP_PARM, _nc_visbuf(str), keycode));
44    if (SP_PARM == 0 || !HasTInfoTerminal(SP_PARM)) {
45	code = ERR;
46    } else if (keycode > 0) {
47	unsigned ukey = (unsigned) keycode;
48
49#ifdef USE_TERM_DRIVER
50#define CallHasKey(keycode) CallDriver_1(SP_PARM, kyExist, keycode)
51#else
52#define CallHasKey(keycode) NCURSES_SP_NAME(has_key)(NCURSES_SP_ARGx keycode)
53#endif
54
55	if (str != 0) {
56	    NCURSES_SP_NAME(define_key) (NCURSES_SP_ARGx str, 0);
57	} else if (CallHasKey(keycode)) {
58	    while (_nc_remove_key(&(SP_PARM->_keytry), ukey))
59		code = OK;
60	}
61	if (str != 0) {
62	    if (NCURSES_SP_NAME(key_defined) (NCURSES_SP_ARGx str) == 0) {
63		if (_nc_add_to_try(&(SP_PARM->_keytry), str, ukey) == OK) {
64		    code = OK;
65		} else {
66		    code = ERR;
67		}
68	    } else {
69		code = ERR;
70	    }
71	}
72    } else {
73	while (_nc_remove_string(&(SP_PARM->_keytry), str))
74	    code = OK;
75    }
76    returnCode(code);
77}
78
79#if NCURSES_SP_FUNCS
80NCURSES_EXPORT(int)
81define_key(const char *str, int keycode)
82{
83    return NCURSES_SP_NAME(define_key) (CURRENT_SCREEN, str, keycode);
84}
85#endif
86