1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 #pragma ident "%Z%%M% %I% %E% SMI"
41
42 /*LINTLIBRARY*/
43
44 #include <sys/types.h>
45 #include "curses_inc.h"
46 #ifdef DEBUG
47 #include <ctype.h>
48 #endif /* DEBUG */
49
50 /*
51 * This routine reads in a character from the window.
52 *
53 * wgetch MUST return an int, not a char, because it can return
54 * things like ERR, meta characters, and function keys > 256.
55 */
56
57 int
wgetch(WINDOW * win)58 wgetch(WINDOW *win)
59 {
60 int inp;
61 bool weset = FALSE;
62
63 #ifdef DEBUG
64 if (outf) {
65 fprintf(outf, "WGETCH: SP->fl_echoit = %c\n",
66 SP->fl_echoit ? 'T' : 'F');
67 fprintf(outf, "_use_keypad %d, kp_state %d\n",
68 win->_use_keypad, SP->kp_state);
69 fprintf(outf, "file %x fd %d\n", SP->input_file,
70 fileno(SP->input_file));
71 }
72 #endif /* DEBUG */
73
74 if (SP->fl_echoit && cur_term->_fl_rawmode == 0) {
75 (void) cbreak();
76 weset++;
77 }
78
79 /* Make sure we are in proper nodelay state and not */
80 /* in halfdelay state */
81 if (cur_term->_delay <= 0 && cur_term->_delay != win->_delay)
82 (void) ttimeout(win->_delay);
83
84 if ((win->_flags & (_WINCHANGED | _WINMOVED)) && !(win->_flags &
85 _ISPAD))
86 (void) wrefresh(win);
87
88 if ((cur_term->_ungotten == 0) && (req_for_input)) {
89 (void) tputs(req_for_input, 1, _outch);
90 (void) fflush(SP->term_file);
91 }
92 inp = (int)tgetch((int)(win->_use_keypad ? 1 + win->_notimeout : 0));
93
94 /* echo the key out to the screen */
95 if (SP->fl_echoit && (inp < 0200) && (inp >= 0) && !(win->_flags &
96 _ISPAD))
97 (void) wechochar(win, (chtype) inp);
98
99 /*
100 * Do nl() mapping. nl() affects both input and output. Since
101 * we turn off input mapping of CR->NL to not affect input
102 * virtualization, we do the mapping here in software.
103 */
104 if (inp == '\r' && !SP->fl_nonl)
105 inp = '\n';
106
107 if (weset)
108 (void) nocbreak();
109
110 return (inp);
111 }
112