Annotation of embedaddon/tmux/tty-keys.c, revision 1.1
1.1 ! misho 1: /* $OpenBSD$ */
! 2:
! 3: /*
! 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
! 5: *
! 6: * Permission to use, copy, modify, and distribute this software for any
! 7: * purpose with or without fee is hereby granted, provided that the above
! 8: * copyright notice and this permission notice appear in all copies.
! 9: *
! 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
! 15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
! 16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 17: */
! 18:
! 19: #include <sys/types.h>
! 20: #include <sys/time.h>
! 21:
! 22: #include <limits.h>
! 23: #include <stdlib.h>
! 24: #include <string.h>
! 25: #include <termios.h>
! 26: #include <unistd.h>
! 27:
! 28: #include "tmux.h"
! 29:
! 30: /*
! 31: * Handle keys input from the outside terminal. tty_default_*_keys[] are a base
! 32: * table of supported keys which are looked up in terminfo(5) and translated
! 33: * into a ternary tree.
! 34: */
! 35:
! 36: static void tty_keys_add1(struct tty_key **, const char *, key_code);
! 37: static void tty_keys_add(struct tty *, const char *, key_code);
! 38: static void tty_keys_free1(struct tty_key *);
! 39: static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t,
! 40: size_t *);
! 41: static struct tty_key *tty_keys_find(struct tty *, const char *, size_t,
! 42: size_t *);
! 43: static int tty_keys_next1(struct tty *, const char *, size_t, key_code *,
! 44: size_t *, int);
! 45: static void tty_keys_callback(int, short, void *);
! 46: static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *);
! 47: static int tty_keys_device_attributes(struct tty *, const char *, size_t,
! 48: size_t *);
! 49:
! 50: /* Default raw keys. */
! 51: struct tty_default_key_raw {
! 52: const char *string;
! 53: key_code key;
! 54: };
! 55: static const struct tty_default_key_raw tty_default_raw_keys[] = {
! 56: /*
! 57: * Numeric keypad. Just use the vt100 escape sequences here and always
! 58: * put the terminal into keypad_xmit mode. Translation of numbers
! 59: * mode/applications mode is done in input-keys.c.
! 60: */
! 61: { "\033Oo", KEYC_KP_SLASH },
! 62: { "\033Oj", KEYC_KP_STAR },
! 63: { "\033Om", KEYC_KP_MINUS },
! 64: { "\033Ow", KEYC_KP_SEVEN },
! 65: { "\033Ox", KEYC_KP_EIGHT },
! 66: { "\033Oy", KEYC_KP_NINE },
! 67: { "\033Ok", KEYC_KP_PLUS },
! 68: { "\033Ot", KEYC_KP_FOUR },
! 69: { "\033Ou", KEYC_KP_FIVE },
! 70: { "\033Ov", KEYC_KP_SIX },
! 71: { "\033Oq", KEYC_KP_ONE },
! 72: { "\033Or", KEYC_KP_TWO },
! 73: { "\033Os", KEYC_KP_THREE },
! 74: { "\033OM", KEYC_KP_ENTER },
! 75: { "\033Op", KEYC_KP_ZERO },
! 76: { "\033On", KEYC_KP_PERIOD },
! 77:
! 78: /* Arrow keys. */
! 79: { "\033OA", KEYC_UP },
! 80: { "\033OB", KEYC_DOWN },
! 81: { "\033OC", KEYC_RIGHT },
! 82: { "\033OD", KEYC_LEFT },
! 83:
! 84: { "\033[A", KEYC_UP },
! 85: { "\033[B", KEYC_DOWN },
! 86: { "\033[C", KEYC_RIGHT },
! 87: { "\033[D", KEYC_LEFT },
! 88:
! 89: /* Other (xterm) "cursor" keys. */
! 90: { "\033OH", KEYC_HOME },
! 91: { "\033OF", KEYC_END },
! 92:
! 93: { "\033[H", KEYC_HOME },
! 94: { "\033[F", KEYC_END },
! 95:
! 96: /* rxvt-style arrow + modifier keys. */
! 97: { "\033Oa", KEYC_UP|KEYC_CTRL },
! 98: { "\033Ob", KEYC_DOWN|KEYC_CTRL },
! 99: { "\033Oc", KEYC_RIGHT|KEYC_CTRL },
! 100: { "\033Od", KEYC_LEFT|KEYC_CTRL },
! 101:
! 102: { "\033[a", KEYC_UP|KEYC_SHIFT },
! 103: { "\033[b", KEYC_DOWN|KEYC_SHIFT },
! 104: { "\033[c", KEYC_RIGHT|KEYC_SHIFT },
! 105: { "\033[d", KEYC_LEFT|KEYC_SHIFT },
! 106:
! 107: /* rxvt-style function + modifier keys (C = ^, S = $, C-S = @). */
! 108: { "\033[11^", KEYC_F1|KEYC_CTRL },
! 109: { "\033[12^", KEYC_F2|KEYC_CTRL },
! 110: { "\033[13^", KEYC_F3|KEYC_CTRL },
! 111: { "\033[14^", KEYC_F4|KEYC_CTRL },
! 112: { "\033[15^", KEYC_F5|KEYC_CTRL },
! 113: { "\033[17^", KEYC_F6|KEYC_CTRL },
! 114: { "\033[18^", KEYC_F7|KEYC_CTRL },
! 115: { "\033[19^", KEYC_F8|KEYC_CTRL },
! 116: { "\033[20^", KEYC_F9|KEYC_CTRL },
! 117: { "\033[21^", KEYC_F10|KEYC_CTRL },
! 118: { "\033[23^", KEYC_F11|KEYC_CTRL },
! 119: { "\033[24^", KEYC_F12|KEYC_CTRL },
! 120: { "\033[2^", KEYC_IC|KEYC_CTRL },
! 121: { "\033[3^", KEYC_DC|KEYC_CTRL },
! 122: { "\033[7^", KEYC_HOME|KEYC_CTRL },
! 123: { "\033[8^", KEYC_END|KEYC_CTRL },
! 124: { "\033[6^", KEYC_NPAGE|KEYC_CTRL },
! 125: { "\033[5^", KEYC_PPAGE|KEYC_CTRL },
! 126:
! 127: { "\033[11$", KEYC_F1|KEYC_SHIFT },
! 128: { "\033[12$", KEYC_F2|KEYC_SHIFT },
! 129: { "\033[13$", KEYC_F3|KEYC_SHIFT },
! 130: { "\033[14$", KEYC_F4|KEYC_SHIFT },
! 131: { "\033[15$", KEYC_F5|KEYC_SHIFT },
! 132: { "\033[17$", KEYC_F6|KEYC_SHIFT },
! 133: { "\033[18$", KEYC_F7|KEYC_SHIFT },
! 134: { "\033[19$", KEYC_F8|KEYC_SHIFT },
! 135: { "\033[20$", KEYC_F9|KEYC_SHIFT },
! 136: { "\033[21$", KEYC_F10|KEYC_SHIFT },
! 137: { "\033[23$", KEYC_F11|KEYC_SHIFT },
! 138: { "\033[24$", KEYC_F12|KEYC_SHIFT },
! 139: { "\033[2$", KEYC_IC|KEYC_SHIFT },
! 140: { "\033[3$", KEYC_DC|KEYC_SHIFT },
! 141: { "\033[7$", KEYC_HOME|KEYC_SHIFT },
! 142: { "\033[8$", KEYC_END|KEYC_SHIFT },
! 143: { "\033[6$", KEYC_NPAGE|KEYC_SHIFT },
! 144: { "\033[5$", KEYC_PPAGE|KEYC_SHIFT },
! 145:
! 146: { "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT },
! 147: { "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT },
! 148: { "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT },
! 149: { "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT },
! 150: { "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT },
! 151: { "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT },
! 152: { "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT },
! 153: { "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT },
! 154: { "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT },
! 155: { "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT },
! 156: { "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT },
! 157: { "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT },
! 158: { "\033[2@", KEYC_IC|KEYC_CTRL|KEYC_SHIFT },
! 159: { "\033[3@", KEYC_DC|KEYC_CTRL|KEYC_SHIFT },
! 160: { "\033[7@", KEYC_HOME|KEYC_CTRL|KEYC_SHIFT },
! 161: { "\033[8@", KEYC_END|KEYC_CTRL|KEYC_SHIFT },
! 162: { "\033[6@", KEYC_NPAGE|KEYC_CTRL|KEYC_SHIFT },
! 163: { "\033[5@", KEYC_PPAGE|KEYC_CTRL|KEYC_SHIFT },
! 164:
! 165: /* Focus tracking. */
! 166: { "\033[I", KEYC_FOCUS_IN },
! 167: { "\033[O", KEYC_FOCUS_OUT },
! 168: };
! 169:
! 170: /* Default terminfo(5) keys. */
! 171: struct tty_default_key_code {
! 172: enum tty_code_code code;
! 173: key_code key;
! 174: };
! 175: static const struct tty_default_key_code tty_default_code_keys[] = {
! 176: /* Function keys. */
! 177: { TTYC_KF1, KEYC_F1 },
! 178: { TTYC_KF2, KEYC_F2 },
! 179: { TTYC_KF3, KEYC_F3 },
! 180: { TTYC_KF4, KEYC_F4 },
! 181: { TTYC_KF5, KEYC_F5 },
! 182: { TTYC_KF6, KEYC_F6 },
! 183: { TTYC_KF7, KEYC_F7 },
! 184: { TTYC_KF8, KEYC_F8 },
! 185: { TTYC_KF9, KEYC_F9 },
! 186: { TTYC_KF10, KEYC_F10 },
! 187: { TTYC_KF11, KEYC_F11 },
! 188: { TTYC_KF12, KEYC_F12 },
! 189:
! 190: { TTYC_KF13, KEYC_F1|KEYC_SHIFT },
! 191: { TTYC_KF14, KEYC_F2|KEYC_SHIFT },
! 192: { TTYC_KF15, KEYC_F3|KEYC_SHIFT },
! 193: { TTYC_KF16, KEYC_F4|KEYC_SHIFT },
! 194: { TTYC_KF17, KEYC_F5|KEYC_SHIFT },
! 195: { TTYC_KF18, KEYC_F6|KEYC_SHIFT },
! 196: { TTYC_KF19, KEYC_F7|KEYC_SHIFT },
! 197: { TTYC_KF20, KEYC_F8|KEYC_SHIFT },
! 198: { TTYC_KF21, KEYC_F9|KEYC_SHIFT },
! 199: { TTYC_KF22, KEYC_F10|KEYC_SHIFT },
! 200: { TTYC_KF23, KEYC_F11|KEYC_SHIFT },
! 201: { TTYC_KF24, KEYC_F12|KEYC_SHIFT },
! 202:
! 203: { TTYC_KF25, KEYC_F1|KEYC_CTRL },
! 204: { TTYC_KF26, KEYC_F2|KEYC_CTRL },
! 205: { TTYC_KF27, KEYC_F3|KEYC_CTRL },
! 206: { TTYC_KF28, KEYC_F4|KEYC_CTRL },
! 207: { TTYC_KF29, KEYC_F5|KEYC_CTRL },
! 208: { TTYC_KF30, KEYC_F6|KEYC_CTRL },
! 209: { TTYC_KF31, KEYC_F7|KEYC_CTRL },
! 210: { TTYC_KF32, KEYC_F8|KEYC_CTRL },
! 211: { TTYC_KF33, KEYC_F9|KEYC_CTRL },
! 212: { TTYC_KF34, KEYC_F10|KEYC_CTRL },
! 213: { TTYC_KF35, KEYC_F11|KEYC_CTRL },
! 214: { TTYC_KF36, KEYC_F12|KEYC_CTRL },
! 215:
! 216: { TTYC_KF37, KEYC_F1|KEYC_SHIFT|KEYC_CTRL },
! 217: { TTYC_KF38, KEYC_F2|KEYC_SHIFT|KEYC_CTRL },
! 218: { TTYC_KF39, KEYC_F3|KEYC_SHIFT|KEYC_CTRL },
! 219: { TTYC_KF40, KEYC_F4|KEYC_SHIFT|KEYC_CTRL },
! 220: { TTYC_KF41, KEYC_F5|KEYC_SHIFT|KEYC_CTRL },
! 221: { TTYC_KF42, KEYC_F6|KEYC_SHIFT|KEYC_CTRL },
! 222: { TTYC_KF43, KEYC_F7|KEYC_SHIFT|KEYC_CTRL },
! 223: { TTYC_KF44, KEYC_F8|KEYC_SHIFT|KEYC_CTRL },
! 224: { TTYC_KF45, KEYC_F9|KEYC_SHIFT|KEYC_CTRL },
! 225: { TTYC_KF46, KEYC_F10|KEYC_SHIFT|KEYC_CTRL },
! 226: { TTYC_KF47, KEYC_F11|KEYC_SHIFT|KEYC_CTRL },
! 227: { TTYC_KF48, KEYC_F12|KEYC_SHIFT|KEYC_CTRL },
! 228:
! 229: { TTYC_KF49, KEYC_F1|KEYC_ESCAPE },
! 230: { TTYC_KF50, KEYC_F2|KEYC_ESCAPE },
! 231: { TTYC_KF51, KEYC_F3|KEYC_ESCAPE },
! 232: { TTYC_KF52, KEYC_F4|KEYC_ESCAPE },
! 233: { TTYC_KF53, KEYC_F5|KEYC_ESCAPE },
! 234: { TTYC_KF54, KEYC_F6|KEYC_ESCAPE },
! 235: { TTYC_KF55, KEYC_F7|KEYC_ESCAPE },
! 236: { TTYC_KF56, KEYC_F8|KEYC_ESCAPE },
! 237: { TTYC_KF57, KEYC_F9|KEYC_ESCAPE },
! 238: { TTYC_KF58, KEYC_F10|KEYC_ESCAPE },
! 239: { TTYC_KF59, KEYC_F11|KEYC_ESCAPE },
! 240: { TTYC_KF60, KEYC_F12|KEYC_ESCAPE },
! 241:
! 242: { TTYC_KF61, KEYC_F1|KEYC_ESCAPE|KEYC_SHIFT },
! 243: { TTYC_KF62, KEYC_F2|KEYC_ESCAPE|KEYC_SHIFT },
! 244: { TTYC_KF63, KEYC_F3|KEYC_ESCAPE|KEYC_SHIFT },
! 245:
! 246: { TTYC_KICH1, KEYC_IC },
! 247: { TTYC_KDCH1, KEYC_DC },
! 248: { TTYC_KHOME, KEYC_HOME },
! 249: { TTYC_KEND, KEYC_END },
! 250: { TTYC_KNP, KEYC_NPAGE },
! 251: { TTYC_KPP, KEYC_PPAGE },
! 252: { TTYC_KCBT, KEYC_BTAB },
! 253:
! 254: /* Arrow keys from terminfo. */
! 255: { TTYC_KCUU1, KEYC_UP },
! 256: { TTYC_KCUD1, KEYC_DOWN },
! 257: { TTYC_KCUB1, KEYC_LEFT },
! 258: { TTYC_KCUF1, KEYC_RIGHT },
! 259:
! 260: /* Key and modifier capabilities. */
! 261: { TTYC_KDC2, KEYC_DC|KEYC_SHIFT },
! 262: { TTYC_KDC3, KEYC_DC|KEYC_ESCAPE },
! 263: { TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_ESCAPE },
! 264: { TTYC_KDC5, KEYC_DC|KEYC_CTRL },
! 265: { TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL },
! 266: { TTYC_KDC7, KEYC_DC|KEYC_ESCAPE|KEYC_CTRL },
! 267: { TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT },
! 268: { TTYC_KDN3, KEYC_DOWN|KEYC_ESCAPE },
! 269: { TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_ESCAPE },
! 270: { TTYC_KDN5, KEYC_DOWN|KEYC_CTRL },
! 271: { TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL },
! 272: { TTYC_KDN7, KEYC_DOWN|KEYC_ESCAPE|KEYC_CTRL },
! 273: { TTYC_KEND2, KEYC_END|KEYC_SHIFT },
! 274: { TTYC_KEND3, KEYC_END|KEYC_ESCAPE },
! 275: { TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_ESCAPE },
! 276: { TTYC_KEND5, KEYC_END|KEYC_CTRL },
! 277: { TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL },
! 278: { TTYC_KEND7, KEYC_END|KEYC_ESCAPE|KEYC_CTRL },
! 279: { TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT },
! 280: { TTYC_KHOM3, KEYC_HOME|KEYC_ESCAPE },
! 281: { TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_ESCAPE },
! 282: { TTYC_KHOM5, KEYC_HOME|KEYC_CTRL },
! 283: { TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL },
! 284: { TTYC_KHOM7, KEYC_HOME|KEYC_ESCAPE|KEYC_CTRL },
! 285: { TTYC_KIC2, KEYC_IC|KEYC_SHIFT },
! 286: { TTYC_KIC3, KEYC_IC|KEYC_ESCAPE },
! 287: { TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_ESCAPE },
! 288: { TTYC_KIC5, KEYC_IC|KEYC_CTRL },
! 289: { TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL },
! 290: { TTYC_KIC7, KEYC_IC|KEYC_ESCAPE|KEYC_CTRL },
! 291: { TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT },
! 292: { TTYC_KLFT3, KEYC_LEFT|KEYC_ESCAPE },
! 293: { TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_ESCAPE },
! 294: { TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL },
! 295: { TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL },
! 296: { TTYC_KLFT7, KEYC_LEFT|KEYC_ESCAPE|KEYC_CTRL },
! 297: { TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT },
! 298: { TTYC_KNXT3, KEYC_NPAGE|KEYC_ESCAPE },
! 299: { TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_ESCAPE },
! 300: { TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL },
! 301: { TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL },
! 302: { TTYC_KNXT7, KEYC_NPAGE|KEYC_ESCAPE|KEYC_CTRL },
! 303: { TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT },
! 304: { TTYC_KPRV3, KEYC_PPAGE|KEYC_ESCAPE },
! 305: { TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_ESCAPE },
! 306: { TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL },
! 307: { TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL },
! 308: { TTYC_KPRV7, KEYC_PPAGE|KEYC_ESCAPE|KEYC_CTRL },
! 309: { TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT },
! 310: { TTYC_KRIT3, KEYC_RIGHT|KEYC_ESCAPE },
! 311: { TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_ESCAPE },
! 312: { TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL },
! 313: { TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL },
! 314: { TTYC_KRIT7, KEYC_RIGHT|KEYC_ESCAPE|KEYC_CTRL },
! 315: { TTYC_KUP2, KEYC_UP|KEYC_SHIFT },
! 316: { TTYC_KUP3, KEYC_UP|KEYC_ESCAPE },
! 317: { TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_ESCAPE },
! 318: { TTYC_KUP5, KEYC_UP|KEYC_CTRL },
! 319: { TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL },
! 320: { TTYC_KUP7, KEYC_UP|KEYC_ESCAPE|KEYC_CTRL },
! 321: };
! 322:
! 323: /* Add key to tree. */
! 324: static void
! 325: tty_keys_add(struct tty *tty, const char *s, key_code key)
! 326: {
! 327: struct tty_key *tk;
! 328: size_t size;
! 329: const char *keystr;
! 330:
! 331: keystr = key_string_lookup_key(key);
! 332: if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) {
! 333: log_debug("new key %s: 0x%llx (%s)", s, key, keystr);
! 334: tty_keys_add1(&tty->key_tree, s, key);
! 335: } else {
! 336: log_debug("replacing key %s: 0x%llx (%s)", s, key, keystr);
! 337: tk->key = key;
! 338: }
! 339: }
! 340:
! 341: /* Add next node to the tree. */
! 342: static void
! 343: tty_keys_add1(struct tty_key **tkp, const char *s, key_code key)
! 344: {
! 345: struct tty_key *tk;
! 346:
! 347: /* Allocate a tree entry if there isn't one already. */
! 348: tk = *tkp;
! 349: if (tk == NULL) {
! 350: tk = *tkp = xcalloc(1, sizeof *tk);
! 351: tk->ch = *s;
! 352: tk->key = KEYC_UNKNOWN;
! 353: }
! 354:
! 355: /* Find the next entry. */
! 356: if (*s == tk->ch) {
! 357: /* Move forward in string. */
! 358: s++;
! 359:
! 360: /* If this is the end of the string, no more is necessary. */
! 361: if (*s == '\0') {
! 362: tk->key = key;
! 363: return;
! 364: }
! 365:
! 366: /* Use the child tree for the next character. */
! 367: tkp = &tk->next;
! 368: } else {
! 369: if (*s < tk->ch)
! 370: tkp = &tk->left;
! 371: else if (*s > tk->ch)
! 372: tkp = &tk->right;
! 373: }
! 374:
! 375: /* And recurse to add it. */
! 376: tty_keys_add1(tkp, s, key);
! 377: }
! 378:
! 379: /* Initialise a key tree from the table. */
! 380: void
! 381: tty_keys_build(struct tty *tty)
! 382: {
! 383: const struct tty_default_key_raw *tdkr;
! 384: const struct tty_default_key_code *tdkc;
! 385: u_int i;
! 386: const char *s;
! 387:
! 388: if (tty->key_tree != NULL)
! 389: tty_keys_free(tty);
! 390: tty->key_tree = NULL;
! 391:
! 392: for (i = 0; i < nitems(tty_default_raw_keys); i++) {
! 393: tdkr = &tty_default_raw_keys[i];
! 394:
! 395: s = tdkr->string;
! 396: if (*s != '\0')
! 397: tty_keys_add(tty, s, tdkr->key);
! 398: }
! 399: for (i = 0; i < nitems(tty_default_code_keys); i++) {
! 400: tdkc = &tty_default_code_keys[i];
! 401:
! 402: s = tty_term_string(tty->term, tdkc->code);
! 403: if (*s != '\0')
! 404: tty_keys_add(tty, s, tdkc->key);
! 405:
! 406: }
! 407: }
! 408:
! 409: /* Free the entire key tree. */
! 410: void
! 411: tty_keys_free(struct tty *tty)
! 412: {
! 413: tty_keys_free1(tty->key_tree);
! 414: }
! 415:
! 416: /* Free a single key. */
! 417: static void
! 418: tty_keys_free1(struct tty_key *tk)
! 419: {
! 420: if (tk->next != NULL)
! 421: tty_keys_free1(tk->next);
! 422: if (tk->left != NULL)
! 423: tty_keys_free1(tk->left);
! 424: if (tk->right != NULL)
! 425: tty_keys_free1(tk->right);
! 426: free(tk);
! 427: }
! 428:
! 429: /* Lookup a key in the tree. */
! 430: static struct tty_key *
! 431: tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size)
! 432: {
! 433: *size = 0;
! 434: return (tty_keys_find1(tty->key_tree, buf, len, size));
! 435: }
! 436:
! 437: /* Find the next node. */
! 438: static struct tty_key *
! 439: tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
! 440: {
! 441: /* If the node is NULL, this is the end of the tree. No match. */
! 442: if (tk == NULL)
! 443: return (NULL);
! 444:
! 445: /* Pick the next in the sequence. */
! 446: if (tk->ch == *buf) {
! 447: /* Move forward in the string. */
! 448: buf++; len--;
! 449: (*size)++;
! 450:
! 451: /* At the end of the string, return the current node. */
! 452: if (len == 0 || (tk->next == NULL && tk->key != KEYC_UNKNOWN))
! 453: return (tk);
! 454:
! 455: /* Move into the next tree for the following character. */
! 456: tk = tk->next;
! 457: } else {
! 458: if (*buf < tk->ch)
! 459: tk = tk->left;
! 460: else if (*buf > tk->ch)
! 461: tk = tk->right;
! 462: }
! 463:
! 464: /* Move to the next in the tree. */
! 465: return (tty_keys_find1(tk, buf, len, size));
! 466: }
! 467:
! 468: /* Look up part of the next key. */
! 469: static int
! 470: tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key,
! 471: size_t *size, int expired)
! 472: {
! 473: struct client *c = tty->client;
! 474: struct tty_key *tk, *tk1;
! 475: struct utf8_data ud;
! 476: enum utf8_state more;
! 477: u_int i;
! 478: wchar_t wc;
! 479:
! 480: log_debug("%s: next key is %zu (%.*s) (expired=%d)", c->name, len,
! 481: (int)len, buf, expired);
! 482:
! 483: /* Is this a known key? */
! 484: tk = tty_keys_find(tty, buf, len, size);
! 485: if (tk != NULL && tk->key != KEYC_UNKNOWN) {
! 486: tk1 = tk;
! 487: do
! 488: log_debug("%s: keys in list: %#llx", c->name, tk1->key);
! 489: while ((tk1 = tk1->next) != NULL);
! 490: if (tk->next != NULL && !expired)
! 491: return (1);
! 492: *key = tk->key;
! 493: return (0);
! 494: }
! 495:
! 496: /* Is this valid UTF-8? */
! 497: more = utf8_open(&ud, (u_char)*buf);
! 498: if (more == UTF8_MORE) {
! 499: *size = ud.size;
! 500: if (len < ud.size) {
! 501: if (!expired)
! 502: return (1);
! 503: return (-1);
! 504: }
! 505: for (i = 1; i < ud.size; i++)
! 506: more = utf8_append(&ud, (u_char)buf[i]);
! 507: if (more != UTF8_DONE)
! 508: return (-1);
! 509:
! 510: if (utf8_combine(&ud, &wc) != UTF8_DONE)
! 511: return (-1);
! 512: *key = wc;
! 513:
! 514: log_debug("%s: UTF-8 key %.*s %#llx", c->name, (int)ud.size,
! 515: buf, *key);
! 516: return (0);
! 517: }
! 518:
! 519: return (-1);
! 520: }
! 521:
! 522: /*
! 523: * Process at least one key in the buffer and invoke tty->key_callback. Return
! 524: * 0 if there are no further keys, or 1 if there could be more in the buffer.
! 525: */
! 526: key_code
! 527: tty_keys_next(struct tty *tty)
! 528: {
! 529: struct client *c = tty->client;
! 530: struct timeval tv;
! 531: const char *buf;
! 532: size_t len, size;
! 533: cc_t bspace;
! 534: int delay, expired = 0, n;
! 535: key_code key;
! 536:
! 537: /* Get key buffer. */
! 538: buf = EVBUFFER_DATA(tty->in);
! 539: len = EVBUFFER_LENGTH(tty->in);
! 540:
! 541: if (len == 0)
! 542: return (0);
! 543: log_debug("%s: keys are %zu (%.*s)", c->name, len, (int)len, buf);
! 544:
! 545: /* Is this a device attributes response? */
! 546: switch (tty_keys_device_attributes(tty, buf, len, &size)) {
! 547: case 0: /* yes */
! 548: key = KEYC_UNKNOWN;
! 549: goto complete_key;
! 550: case -1: /* no, or not valid */
! 551: break;
! 552: case 1: /* partial */
! 553: goto partial_key;
! 554: }
! 555:
! 556: /* Is this a mouse key press? */
! 557: switch (tty_keys_mouse(tty, buf, len, &size)) {
! 558: case 0: /* yes */
! 559: key = KEYC_MOUSE;
! 560: goto complete_key;
! 561: case -1: /* no, or not valid */
! 562: break;
! 563: case -2: /* yes, but we don't care. */
! 564: key = KEYC_MOUSE;
! 565: goto discard_key;
! 566: case 1: /* partial */
! 567: goto partial_key;
! 568: }
! 569:
! 570: first_key:
! 571: /* Handle keys starting with escape. */
! 572: if (*buf == '\033') {
! 573: /* Look for a key without the escape. */
! 574: n = tty_keys_next1(tty, buf + 1, len - 1, &key, &size, expired);
! 575: if (n == 0) { /* found */
! 576: key |= KEYC_ESCAPE;
! 577: size++;
! 578: goto complete_key;
! 579: }
! 580: if (n == 1) /* partial */
! 581: goto partial_key;
! 582: }
! 583:
! 584: /* Try to lookup key. */
! 585: n = tty_keys_next1(tty, buf, len, &key, &size, expired);
! 586: if (n == 0) /* found */
! 587: goto complete_key;
! 588: if (n == 1)
! 589: goto partial_key;
! 590:
! 591: /* Is this an an xterm(1) key? */
! 592: n = xterm_keys_find(buf, len, &size, &key);
! 593: if (n == 0)
! 594: goto complete_key;
! 595: if (n == 1 && !expired)
! 596: goto partial_key;
! 597:
! 598: /*
! 599: * At this point, we know the key is not partial (with or without
! 600: * escape). So pass it through even if the timer has not expired.
! 601: */
! 602: if (*buf == '\033' && len >= 2) {
! 603: key = (u_char)buf[1] | KEYC_ESCAPE;
! 604: size = 2;
! 605: } else {
! 606: key = (u_char)buf[0];
! 607: size = 1;
! 608: }
! 609: goto complete_key;
! 610:
! 611: partial_key:
! 612: log_debug("%s: partial key %.*s", c->name, (int)len, buf);
! 613:
! 614: /* If timer is going, check for expiration. */
! 615: if (tty->flags & TTY_TIMER) {
! 616: if (evtimer_initialized(&tty->key_timer) &&
! 617: !evtimer_pending(&tty->key_timer, NULL)) {
! 618: expired = 1;
! 619: goto first_key;
! 620: }
! 621: return (0);
! 622: }
! 623:
! 624: /* Get the time period. */
! 625: delay = options_get_number(global_options, "escape-time");
! 626: tv.tv_sec = delay / 1000;
! 627: tv.tv_usec = (delay % 1000) * 1000L;
! 628:
! 629: /* Start the timer. */
! 630: if (event_initialized(&tty->key_timer))
! 631: evtimer_del(&tty->key_timer);
! 632: evtimer_set(&tty->key_timer, tty_keys_callback, tty);
! 633: evtimer_add(&tty->key_timer, &tv);
! 634:
! 635: tty->flags |= TTY_TIMER;
! 636: return (0);
! 637:
! 638: complete_key:
! 639: log_debug("%s: complete key %.*s %#llx", c->name, (int)size, buf, key);
! 640:
! 641: /*
! 642: * Check for backspace key using termios VERASE - the terminfo
! 643: * kbs entry is extremely unreliable, so cannot be safely
! 644: * used. termios should have a better idea.
! 645: */
! 646: bspace = tty->tio.c_cc[VERASE];
! 647: if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace)
! 648: key = (key & KEYC_MASK_MOD) | KEYC_BSPACE;
! 649:
! 650: /* Remove data from buffer. */
! 651: evbuffer_drain(tty->in, size);
! 652:
! 653: /* Remove key timer. */
! 654: if (event_initialized(&tty->key_timer))
! 655: evtimer_del(&tty->key_timer);
! 656: tty->flags &= ~TTY_TIMER;
! 657:
! 658: /* Check for focus events. */
! 659: if (key == KEYC_FOCUS_OUT) {
! 660: tty->client->flags &= ~CLIENT_FOCUSED;
! 661: return (1);
! 662: } else if (key == KEYC_FOCUS_IN) {
! 663: tty->client->flags |= CLIENT_FOCUSED;
! 664: return (1);
! 665: }
! 666:
! 667: /* Fire the key. */
! 668: if (key != KEYC_UNKNOWN)
! 669: server_client_handle_key(tty->client, key);
! 670:
! 671: return (1);
! 672:
! 673: discard_key:
! 674: log_debug("%s: discard key %.*s %#llx", c->name, (int)size, buf, key);
! 675:
! 676: /* Remove data from buffer. */
! 677: evbuffer_drain(tty->in, size);
! 678:
! 679: return (1);
! 680: }
! 681:
! 682: /* Key timer callback. */
! 683: static void
! 684: tty_keys_callback(__unused int fd, __unused short events, void *data)
! 685: {
! 686: struct tty *tty = data;
! 687:
! 688: if (tty->flags & TTY_TIMER) {
! 689: while (tty_keys_next(tty))
! 690: ;
! 691: }
! 692: }
! 693:
! 694: /*
! 695: * Handle mouse key input. Returns 0 for success, -1 for failure, 1 for partial
! 696: * (probably a mouse sequence but need more data).
! 697: */
! 698: static int
! 699: tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
! 700: {
! 701: struct client *c = tty->client;
! 702: struct mouse_event *m = &tty->mouse;
! 703: u_int i, x, y, b, sgr_b;
! 704: u_char sgr_type, ch;
! 705:
! 706: /*
! 707: * Standard mouse sequences are \033[M followed by three characters
! 708: * indicating button, X and Y, all based at 32 with 1,1 top-left.
! 709: *
! 710: * UTF-8 mouse sequences are similar but the three are expressed as
! 711: * UTF-8 characters.
! 712: *
! 713: * SGR extended mouse sequences are \033[< followed by three numbers in
! 714: * decimal and separated by semicolons indicating button, X and Y. A
! 715: * trailing 'M' is click or scroll and trailing 'm' release. All are
! 716: * based at 0 with 1,1 top-left.
! 717: */
! 718:
! 719: *size = 0;
! 720: x = y = b = sgr_b = 0;
! 721: sgr_type = ' ';
! 722:
! 723: /* First two bytes are always \033[. */
! 724: if (buf[0] != '\033')
! 725: return (-1);
! 726: if (len == 1)
! 727: return (1);
! 728: if (buf[1] != '[')
! 729: return (-1);
! 730: if (len == 2)
! 731: return (1);
! 732:
! 733: /*
! 734: * Third byte is M in old standard (and UTF-8 extension which we do not
! 735: * support), < in SGR extension.
! 736: */
! 737: if (buf[2] == 'M') {
! 738: /* Read the three inputs. */
! 739: *size = 3;
! 740: for (i = 0; i < 3; i++) {
! 741: if (len <= *size)
! 742: return (1);
! 743: ch = (u_char)buf[(*size)++];
! 744: if (i == 0)
! 745: b = ch;
! 746: else if (i == 1)
! 747: x = ch;
! 748: else
! 749: y = ch;
! 750: }
! 751: log_debug("%s: mouse input: %.*s", c->name, (int)*size, buf);
! 752:
! 753: /* Check and return the mouse input. */
! 754: if (b < 32)
! 755: return (-1);
! 756: b -= 32;
! 757: if (x >= 33)
! 758: x -= 33;
! 759: else
! 760: x = 256 - x;
! 761: if (y >= 33)
! 762: y -= 33;
! 763: else
! 764: y = 256 - y;
! 765: } else if (buf[2] == '<') {
! 766: /* Read the three inputs. */
! 767: *size = 3;
! 768: while (1) {
! 769: if (len <= *size)
! 770: return (1);
! 771: ch = (u_char)buf[(*size)++];
! 772: if (ch == ';')
! 773: break;
! 774: if (ch < '0' || ch > '9')
! 775: return (-1);
! 776: sgr_b = 10 * sgr_b + (ch - '0');
! 777: }
! 778: while (1) {
! 779: if (len <= *size)
! 780: return (1);
! 781: ch = (u_char)buf[(*size)++];
! 782: if (ch == ';')
! 783: break;
! 784: if (ch < '0' || ch > '9')
! 785: return (-1);
! 786: x = 10 * x + (ch - '0');
! 787: }
! 788: while (1) {
! 789: if (len <= *size)
! 790: return (1);
! 791: ch = (u_char)buf[(*size)++];
! 792: if (ch == 'M' || ch == 'm')
! 793: break;
! 794: if (ch < '0' || ch > '9')
! 795: return (-1);
! 796: y = 10 * y + (ch - '0');
! 797: }
! 798: log_debug("%s: mouse input (SGR): %.*s", c->name, (int)*size,
! 799: buf);
! 800:
! 801: /* Check and return the mouse input. */
! 802: if (x < 1 || y < 1)
! 803: return (-1);
! 804: x--;
! 805: y--;
! 806: b = sgr_b;
! 807:
! 808: /* Type is M for press, m for release. */
! 809: sgr_type = ch;
! 810: if (sgr_type == 'm')
! 811: b |= 3;
! 812:
! 813: /*
! 814: * Some terminals (like PuTTY 0.63) mistakenly send
! 815: * button-release events for scroll-wheel button-press event.
! 816: * Discard it before it reaches any program running inside
! 817: * tmux.
! 818: */
! 819: if (sgr_type == 'm' && (sgr_b & 64))
! 820: return (-2);
! 821: } else
! 822: return (-1);
! 823:
! 824: /* Fill mouse event. */
! 825: m->lx = m->x;
! 826: m->x = x;
! 827: m->ly = m->y;
! 828: m->y = y;
! 829: m->lb = m->b;
! 830: m->b = b;
! 831: m->sgr_type = sgr_type;
! 832: m->sgr_b = sgr_b;
! 833:
! 834: return (0);
! 835: }
! 836:
! 837: /*
! 838: * Handle device attributes input. Returns 0 for success, -1 for failure, 1 for
! 839: * partial.
! 840: */
! 841: static int
! 842: tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
! 843: size_t *size)
! 844: {
! 845: struct client *c = tty->client;
! 846: u_int i, a, b;
! 847: char tmp[64], *endptr;
! 848: static const char *types[] = TTY_TYPES;
! 849: int type;
! 850:
! 851: *size = 0;
! 852:
! 853: /* First three bytes are always \033[?. */
! 854: if (buf[0] != '\033')
! 855: return (-1);
! 856: if (len == 1)
! 857: return (1);
! 858: if (buf[1] != '[')
! 859: return (-1);
! 860: if (len == 2)
! 861: return (1);
! 862: if (buf[2] != '?')
! 863: return (-1);
! 864: if (len == 3)
! 865: return (1);
! 866:
! 867: /* Copy the rest up to a 'c'. */
! 868: for (i = 0; i < (sizeof tmp) - 1 && buf[3 + i] != 'c'; i++) {
! 869: if (3 + i == len)
! 870: return (1);
! 871: tmp[i] = buf[3 + i];
! 872: }
! 873: if (i == (sizeof tmp) - 1)
! 874: return (-1);
! 875: tmp[i] = '\0';
! 876: *size = 4 + i;
! 877:
! 878: /* Convert version numbers. */
! 879: a = strtoul(tmp, &endptr, 10);
! 880: if (*endptr == ';') {
! 881: b = strtoul(endptr + 1, &endptr, 10);
! 882: if (*endptr != '\0' && *endptr != ';')
! 883: b = 0;
! 884: } else
! 885: a = b = 0;
! 886:
! 887: /* Store terminal type. */
! 888: type = TTY_UNKNOWN;
! 889: switch (a) {
! 890: case 1:
! 891: if (b == 2)
! 892: type = TTY_VT100;
! 893: else if (b == 0)
! 894: type = TTY_VT101;
! 895: break;
! 896: case 6:
! 897: type = TTY_VT102;
! 898: break;
! 899: case 62:
! 900: type = TTY_VT220;
! 901: break;
! 902: case 63:
! 903: type = TTY_VT320;
! 904: break;
! 905: case 64:
! 906: type = TTY_VT420;
! 907: break;
! 908: }
! 909: tty_set_type(tty, type);
! 910:
! 911: log_debug("%s: received DA %.*s (%s)", c->name, (int)*size, buf,
! 912: types[type]);
! 913: return (0);
! 914: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to tty-keys.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / tmux