1 /*
2 * GyS-TermIO v2.0 (for GySmail v3)
3 * a very small replacement of ncurses library
4 *
5 * copyright (C) 1999 A'rpi/ESP-team
6 *
7 * This file is part of MPlayer.
8 *
9 * MPlayer is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * MPlayer is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 */
23
24 #include "config.h"
25
26 //#define HAVE_TERMCAP
27 #if !defined(__OS2__) && !defined(__MORPHOS__)
28 #define CONFIG_IOCTL
29 #endif
30
31 #define MAX_KEYS 64
32 #define BUF_LEN 256
33
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <stdint.h>
38 #include <sys/time.h>
39 #include <sys/types.h>
40 #ifdef CONFIG_IOCTL
41 #include <sys/ioctl.h>
42 #endif
43
44 #ifdef HAVE_TERMIOS
45 #ifdef HAVE_TERMIOS_H
46 #include <termios.h>
47 #endif
48 #ifdef HAVE_SYS_TERMIOS_H
49 #include <sys/termios.h>
50 #endif
51 #endif
52
53 #if defined(HAVE_LANGINFO) && defined(CONFIG_ICONV)
54 #include <locale.h>
55 #include <langinfo.h>
56 #endif
57
58 #include <unistd.h>
59
60 #include "mp_fifo.h"
61 #include "keycodes.h"
62 #include "getch2.h"
63 #include "libavutil/common.h"
64
65 #ifdef HAVE_TERMIOS
66 static struct termios tio_orig;
67 #endif
68 static int getch2_len=0;
69 static uint8_t getch2_buf[BUF_LEN];
70
71 int screen_width=80;
72 int screen_height=24;
73 char * erase_to_end_of_line = NULL;
74
75 typedef struct {
76 int len;
77 int code;
78 char chars[8];
79 } keycode_st;
80 static keycode_st getch2_keys[MAX_KEYS];
81 static int getch2_key_db=0;
82
83 #ifdef HAVE_TERMCAP
84
85 #if 0
86 #include <termcap.h>
87 #else
88 int tgetent(char *BUFFER, char *TERMTYPE);
89 int tgetnum(char *NAME);
90 int tgetflag(char *NAME);
91 char *tgetstr(char *NAME, char **AREA);
92 #endif
93
94 static char term_buffer[4096];
95 static char term_buffer2[4096];
96 static char *term_p=term_buffer2;
97
termcap_add(char * id,int code)98 static void termcap_add(char *id,int code){
99 char *p=tgetstr(id,&term_p);
100 if(!p) return;
101 if(getch2_key_db>=MAX_KEYS) return;
102 getch2_keys[getch2_key_db].len=strlen(p);
103 if (getch2_keys[getch2_key_db].len >= sizeof(getch2_keys[getch2_key_db].chars))
104 {
105 printf("Key string entry more than 7 characters, ignoring\n");
106 return;
107 }
108 strcpy(getch2_keys[getch2_key_db].chars,p);
109 getch2_keys[getch2_key_db].code=code;
110 ++getch2_key_db;
111 /* printf("%s=%s\n",id,p); */
112 }
113
114 static int success=0;
115
load_termcap(char * termtype)116 int load_termcap(char *termtype){
117 if(!termtype) termtype=getenv("TERM");
118 if(!termtype) termtype="unknown";
119 success=tgetent(term_buffer, termtype);
120 if(success<0){ printf("Could not access the 'termcap' data base.\n"); return 0; }
121 if(success==0){ printf("Terminal type `%s' is not defined.\n", termtype);return 0;}
122
123 screen_width=tgetnum("co");
124 screen_height=tgetnum("li");
125 if(screen_width<1 || screen_width>255) screen_width=80;
126 if(screen_height<1 || screen_height>255) screen_height=24;
127 erase_to_end_of_line= tgetstr("cd",&term_p);
128
129 termcap_add("kP",KEY_PGUP);
130 termcap_add("kN",KEY_PGDWN);
131 termcap_add("kh",KEY_HOME);
132 termcap_add("kH",KEY_END);
133 termcap_add("kI",KEY_INS);
134 termcap_add("kD",KEY_DEL);
135 termcap_add("kb",KEY_BS);
136 termcap_add("kl",KEY_LEFT);
137 termcap_add("kd",KEY_DOWN);
138 termcap_add("ku",KEY_UP);
139 termcap_add("kr",KEY_RIGHT);
140 termcap_add("k0",KEY_F+0);
141 termcap_add("k1",KEY_F+1);
142 termcap_add("k2",KEY_F+2);
143 termcap_add("k3",KEY_F+3);
144 termcap_add("k4",KEY_F+4);
145 termcap_add("k5",KEY_F+5);
146 termcap_add("k6",KEY_F+6);
147 termcap_add("k7",KEY_F+7);
148 termcap_add("k8",KEY_F+8);
149 termcap_add("k9",KEY_F+9);
150 termcap_add("k;",KEY_F+10);
151 return getch2_key_db;
152 }
153
154 #endif
155
get_screen_size(void)156 void get_screen_size(void){
157 #ifdef CONFIG_IOCTL
158 struct winsize ws;
159 if (ioctl(0, TIOCGWINSZ, &ws) < 0 || !ws.ws_row || !ws.ws_col) return;
160 /* printf("Using IOCTL\n"); */
161 screen_width=ws.ws_col;
162 screen_height=ws.ws_row;
163 #endif
164 }
165
getch2(void)166 void getch2(void)
167 {
168 int retval = read(0, &getch2_buf[getch2_len], BUF_LEN-getch2_len);
169 if (retval < 1)
170 return;
171 getch2_len += retval;
172
173 while (getch2_len > 0 && (getch2_len > 1 || getch2_buf[0] != 27)) {
174 int i, len, code;
175
176 /* First find in the TERMCAP database: */
177 for (i = 0; i < getch2_key_db; i++) {
178 if ((len = getch2_keys[i].len) <= getch2_len)
179 if(memcmp(getch2_keys[i].chars, getch2_buf, len) == 0) {
180 code = getch2_keys[i].code;
181 goto found;
182 }
183 }
184 /* We always match some keypress here, with length 1 if nothing else.
185 * Since some of the cases explicitly test remaining buffer length
186 * having a keycode only partially read in the buffer could incorrectly
187 * use the first byte as an independent character.
188 * However the buffer is big enough that this shouldn't happen too
189 * easily, and it's been this way for years without many complaints.
190 * I see no simple fix as there's no easy test which would tell
191 * whether a string must be part of a longer keycode. */
192 len = 1;
193 code = getch2_buf[0];
194 /* Check the well-known codes... */
195 if (code != 27) {
196 if (code == 'A'-64) code = KEY_HOME;
197 else if (code == 'E'-64) code = KEY_END;
198 else if (code == 'D'-64) code = KEY_DEL;
199 else if (code == 'H'-64) code = KEY_BS;
200 else if (code == 'U'-64) code = KEY_PGUP;
201 else if (code == 'V'-64) code = KEY_PGDWN;
202 else if (code == 8 || code==127) code = KEY_BS;
203 else if (code == 10 || code==13) {
204 if (getch2_len > 1) {
205 int c = getch2_buf[1];
206 if ((c == 10 || c == 13) && (c != code))
207 len = 2;
208 }
209 code = KEY_ENTER;
210 } else if (code >= 0xc0) {
211 uint32_t utf8 = 0;
212 i = 0;
213 GET_UTF8(utf8, (i < getch2_len ? getch2_buf[i++] : 0), goto not_utf8;)
214 if (utf8 < KEY_BASE) {
215 code = utf8;
216 len = i;
217 }
218 }
219 }
220 else if (getch2_len > 1) {
221 int c = getch2_buf[1];
222 if (c == 27) {
223 code = KEY_ESC;
224 len = 2;
225 goto found;
226 }
227 if (c >= '0' && c <= '9') {
228 code = c-'0'+KEY_F;
229 len = 2;
230 goto found;
231 }
232 if (getch2_len >= 4 && c == '[' && getch2_buf[2] == '[') {
233 int c = getch2_buf[3];
234 if (c >= 'A' && c < 'A'+12) {
235 code = KEY_F+1 + c-'A';
236 len = 4;
237 goto found;
238 }
239 }
240 if ((c == '[' || c == 'O') && getch2_len >= 3) {
241 int c = getch2_buf[2];
242 static const unsigned ctable[] = {
243 KEY_UP, KEY_DOWN, KEY_RIGHT, KEY_LEFT, 0,
244 KEY_END, KEY_PGDWN, KEY_HOME, KEY_PGUP, 0, 0, KEY_INS, 0, 0, 0,
245 KEY_F+1, KEY_F+2, KEY_F+3, KEY_F+4};
246 if (c >= 'A' && c <= 'S')
247 if (ctable[c - 'A']) {
248 code = ctable[c - 'A'];
249 len = 3;
250 goto found;
251 }
252 }
253 if (getch2_len >= 4 && c == '[' && getch2_buf[3] == '~') {
254 int c = getch2_buf[2];
255 static const int ctable[8] = {KEY_HOME, KEY_INS, KEY_DEL, KEY_END, KEY_PGUP, KEY_PGDWN, KEY_HOME, KEY_END};
256 if (c >= '1' && c <= '8') {
257 code = ctable[c - '1'];
258 len = 4;
259 goto found;
260 }
261 }
262 if (getch2_len >= 5 && c == '[' && getch2_buf[4] == '~') {
263 int i = getch2_buf[2] - '0';
264 int j = getch2_buf[3] - '0';
265 if (i >= 0 && i <= 9 && j >= 0 && j <= 9) {
266 static const uint8_t ftable[20] = {
267 11,12,13,14,15, 17,18,19,20,21,
268 23,24,25,26,28, 29,31,32,33,34 };
269 int a = i*10 + j;
270 for (i = 0; i < 20; i++)
271 if (ftable[i] == a) {
272 code = KEY_F+1 + i;
273 len = 5;
274 goto found;
275 }
276 }
277 }
278 }
279 not_utf8:
280 found:
281 getch2_len -= len;
282 for (i = 0; i < getch2_len; i++)
283 getch2_buf[i] = getch2_buf[len+i];
284 mplayer_put_key(code);
285 }
286 }
287
288 static int getch2_status=0;
289
getch2_enable(void)290 void getch2_enable(void){
291 #ifdef HAVE_TERMIOS
292 struct termios tio_new;
293 tcgetattr(0,&tio_orig);
294 tio_new=tio_orig;
295 tio_new.c_lflag &= ~(ICANON|ECHO); /* Clear ICANON and ECHO. */
296 tio_new.c_cc[VMIN] = 1;
297 tio_new.c_cc[VTIME] = 0;
298 tcsetattr(0,TCSANOW,&tio_new);
299 #endif
300 getch2_status=1;
301 }
302
getch2_disable(void)303 void getch2_disable(void){
304 if(!getch2_status) return; // already disabled / never enabled
305 #ifdef HAVE_TERMIOS
306 tcsetattr(0,TCSANOW,&tio_orig);
307 #endif
308 getch2_status=0;
309 }
310
311 #ifdef CONFIG_ICONV
get_term_charset(void)312 char* get_term_charset(void)
313 {
314 char* charset = NULL;
315 #ifdef HAVE_LANGINFO
316 setlocale(LC_CTYPE, "");
317 charset = strdup(nl_langinfo(CODESET));
318 setlocale(LC_CTYPE, "C");
319 #endif
320 return charset;
321 }
322 #endif
323