Annotation of src/usr.bin/tmux/tty-keys.c, Revision 1.20
1.20 ! nicm 1: /* $OpenBSD: tty-keys.c,v 1.19 2009/11/09 14:40:06 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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 <string.h>
1.3 nicm 23: #include <termios.h>
24: #include <unistd.h>
1.1 nicm 25:
26: #include "tmux.h"
27:
1.9 nicm 28: /*
1.16 nicm 29: * Handle keys input from the outside terminal. tty_keys[] is a base table of
30: * supported keys which are looked up in terminfo(5) and translated into a
31: * ternary tree (a binary tree of binary trees).
1.9 nicm 32: */
33:
1.16 nicm 34: void tty_keys_add1(struct tty_key **, const char *, int);
35: void tty_keys_add(struct tty *, const char *, int);
36: void tty_keys_free1(struct tty_key *);
37: struct tty_key *tty_keys_find1(
38: struct tty_key *, const char *, size_t, size_t *);
39: struct tty_key *tty_keys_find(struct tty *, const char *, size_t, size_t *);
40: void tty_keys_callback(int, short, void *);
1.18 nicm 41: int tty_keys_mouse(
42: const char *, size_t, size_t *, struct mouse_event *);
1.1 nicm 43:
44: struct tty_key_ent {
45: enum tty_code_code code;
46: const char *string;
47:
48: int key;
49: int flags;
1.20 ! nicm 50: #define TTYKEY_RAW 0x1
1.1 nicm 51: };
52:
1.16 nicm 53: /*
54: * Default key tables. Those flagged with TTYKEY_RAW are inserted directly,
1.20 ! nicm 55: * otherwise they are looked up in terminfo(5).
1.16 nicm 56: */
1.1 nicm 57: struct tty_key_ent tty_keys[] = {
58: /* Function keys. */
1.20 ! nicm 59: { TTYC_KF1, NULL, KEYC_F1, 0 },
! 60: { TTYC_KF1, NULL, KEYC_F1, 0 },
! 61: { TTYC_KF2, NULL, KEYC_F2, 0 },
! 62: { TTYC_KF3, NULL, KEYC_F3, 0 },
! 63: { TTYC_KF4, NULL, KEYC_F4, 0 },
! 64: { TTYC_KF5, NULL, KEYC_F5, 0 },
! 65: { TTYC_KF6, NULL, KEYC_F6, 0 },
! 66: { TTYC_KF7, NULL, KEYC_F7, 0 },
! 67: { TTYC_KF8, NULL, KEYC_F8, 0 },
! 68: { TTYC_KF9, NULL, KEYC_F9, 0 },
! 69: { TTYC_KF10, NULL, KEYC_F10, 0 },
! 70: { TTYC_KF11, NULL, KEYC_F11, 0 },
! 71: { TTYC_KF12, NULL, KEYC_F12, 0 },
! 72: { TTYC_KF13, NULL, KEYC_F13, 0 },
! 73: { TTYC_KF14, NULL, KEYC_F14, 0 },
! 74: { TTYC_KF15, NULL, KEYC_F15, 0 },
! 75: { TTYC_KF16, NULL, KEYC_F16, 0 },
! 76: { TTYC_KF17, NULL, KEYC_F17, 0 },
! 77: { TTYC_KF18, NULL, KEYC_F18, 0 },
! 78: { TTYC_KF19, NULL, KEYC_F19, 0 },
! 79: { TTYC_KF20, NULL, KEYC_F20, 0 },
! 80: { TTYC_KICH1, NULL, KEYC_IC, 0 },
! 81: { TTYC_KDCH1, NULL, KEYC_DC, 0 },
! 82: { TTYC_KHOME, NULL, KEYC_HOME, 0 },
! 83: { TTYC_KEND, NULL, KEYC_END, 0 },
! 84: { TTYC_KNP, NULL, KEYC_NPAGE, 0 },
! 85: { TTYC_KPP, NULL, KEYC_PPAGE, 0 },
! 86: { TTYC_KCBT, NULL, KEYC_BTAB, 0 },
1.1 nicm 87:
1.12 nicm 88: /* Arrow keys. */
1.8 nicm 89: { 0, "\033OA", KEYC_UP, TTYKEY_RAW },
90: { 0, "\033OB", KEYC_DOWN, TTYKEY_RAW },
91: { 0, "\033OC", KEYC_RIGHT, TTYKEY_RAW },
92: { 0, "\033OD", KEYC_LEFT, TTYKEY_RAW },
93:
1.12 nicm 94: { 0, "\033[A", KEYC_UP, TTYKEY_RAW },
95: { 0, "\033[B", KEYC_DOWN, TTYKEY_RAW },
96: { 0, "\033[C", KEYC_RIGHT, TTYKEY_RAW },
97: { 0, "\033[D", KEYC_LEFT, TTYKEY_RAW },
1.8 nicm 98:
1.20 ! nicm 99: { TTYC_KCUU1, NULL, KEYC_UP, 0 },
! 100: { TTYC_KCUD1, NULL, KEYC_DOWN, 0 },
! 101: { TTYC_KCUB1, NULL, KEYC_LEFT, 0 },
! 102: { TTYC_KCUF1, NULL, KEYC_RIGHT, 0 },
1.12 nicm 103:
104: /* Special-case arrow keys for rxvt until terminfo has kRIT5 etc. */
1.8 nicm 105: { 0, "\033Oa", KEYC_UP|KEYC_CTRL, TTYKEY_RAW },
106: { 0, "\033Ob", KEYC_DOWN|KEYC_CTRL, TTYKEY_RAW },
107: { 0, "\033Oc", KEYC_RIGHT|KEYC_CTRL, TTYKEY_RAW },
108: { 0, "\033Od", KEYC_LEFT|KEYC_CTRL, TTYKEY_RAW },
1.9 nicm 109:
1.8 nicm 110: { 0, "\033[a", KEYC_UP|KEYC_SHIFT, TTYKEY_RAW },
111: { 0, "\033[b", KEYC_DOWN|KEYC_SHIFT, TTYKEY_RAW },
112: { 0, "\033[c", KEYC_RIGHT|KEYC_SHIFT, TTYKEY_RAW },
113: { 0, "\033[d", KEYC_LEFT|KEYC_SHIFT, TTYKEY_RAW },
1.1 nicm 114:
115: /*
1.8 nicm 116: * Numeric keypad. Just use the vt100 escape sequences here and always
117: * put the terminal into keypad_xmit mode. Translation of numbers
118: * mode/applications mode is done in input-keys.c.
1.1 nicm 119: */
1.8 nicm 120: { 0, "\033Oo", KEYC_KP_SLASH, TTYKEY_RAW },
121: { 0, "\033Oj", KEYC_KP_STAR, TTYKEY_RAW },
122: { 0, "\033Om", KEYC_KP_MINUS, TTYKEY_RAW },
123: { 0, "\033Ow", KEYC_KP_SEVEN, TTYKEY_RAW },
124: { 0, "\033Ox", KEYC_KP_EIGHT, TTYKEY_RAW },
125: { 0, "\033Oy", KEYC_KP_NINE, TTYKEY_RAW },
126: { 0, "\033Ok", KEYC_KP_PLUS, TTYKEY_RAW },
127: { 0, "\033Ot", KEYC_KP_FOUR, TTYKEY_RAW },
128: { 0, "\033Ou", KEYC_KP_FIVE, TTYKEY_RAW },
129: { 0, "\033Ov", KEYC_KP_SIX, TTYKEY_RAW },
130: { 0, "\033Oq", KEYC_KP_ONE, TTYKEY_RAW },
131: { 0, "\033Or", KEYC_KP_TWO, TTYKEY_RAW },
132: { 0, "\033Os", KEYC_KP_THREE, TTYKEY_RAW },
133: { 0, "\033OM", KEYC_KP_ENTER, TTYKEY_RAW },
134: { 0, "\033Op", KEYC_KP_ZERO, TTYKEY_RAW },
135: { 0, "\033On", KEYC_KP_PERIOD, TTYKEY_RAW },
1.10 nicm 136:
137: /* Key and modifier capabilities. */
138: { TTYC_KDC2, NULL, KEYC_DC|KEYC_SHIFT, 0 },
139: { TTYC_KDC3, NULL, KEYC_DC|KEYC_ESCAPE, 0 },
140: { TTYC_KDC4, NULL, KEYC_DC|KEYC_SHIFT|KEYC_ESCAPE, 0 },
141: { TTYC_KDC5, NULL, KEYC_DC|KEYC_CTRL, 0 },
142: { TTYC_KDC6, NULL, KEYC_DC|KEYC_SHIFT|KEYC_CTRL, 0 },
143: { TTYC_KDC7, NULL, KEYC_DC|KEYC_ESCAPE|KEYC_CTRL, 0 },
144: { TTYC_KDN2, NULL, KEYC_DOWN|KEYC_SHIFT, 0 },
145: { TTYC_KDN3, NULL, KEYC_DOWN|KEYC_ESCAPE, 0 },
146: { TTYC_KDN4, NULL, KEYC_DOWN|KEYC_SHIFT|KEYC_ESCAPE, 0 },
147: { TTYC_KDN5, NULL, KEYC_DOWN|KEYC_CTRL, 0 },
148: { TTYC_KDN6, NULL, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL, 0 },
149: { TTYC_KDN7, NULL, KEYC_DOWN|KEYC_ESCAPE|KEYC_CTRL, 0 },
150: { TTYC_KEND2, NULL, KEYC_END|KEYC_SHIFT, 0 },
151: { TTYC_KEND3, NULL, KEYC_END|KEYC_ESCAPE, 0 },
152: { TTYC_KEND4, NULL, KEYC_END|KEYC_SHIFT|KEYC_ESCAPE, 0 },
153: { TTYC_KEND5, NULL, KEYC_END|KEYC_CTRL, 0 },
154: { TTYC_KEND6, NULL, KEYC_END|KEYC_SHIFT|KEYC_CTRL, 0 },
155: { TTYC_KEND7, NULL, KEYC_END|KEYC_ESCAPE|KEYC_CTRL, 0 },
156: { TTYC_KHOM2, NULL, KEYC_HOME|KEYC_SHIFT, 0 },
157: { TTYC_KHOM3, NULL, KEYC_HOME|KEYC_ESCAPE, 0 },
158: { TTYC_KHOM4, NULL, KEYC_HOME|KEYC_SHIFT|KEYC_ESCAPE, 0 },
159: { TTYC_KHOM5, NULL, KEYC_HOME|KEYC_CTRL, 0 },
160: { TTYC_KHOM6, NULL, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL, 0 },
161: { TTYC_KHOM7, NULL, KEYC_HOME|KEYC_ESCAPE|KEYC_CTRL, 0 },
162: { TTYC_KIC2, NULL, KEYC_IC|KEYC_SHIFT, 0 },
163: { TTYC_KIC3, NULL, KEYC_IC|KEYC_ESCAPE, 0 },
164: { TTYC_KIC4, NULL, KEYC_IC|KEYC_SHIFT|KEYC_ESCAPE, 0 },
165: { TTYC_KIC5, NULL, KEYC_IC|KEYC_CTRL, 0 },
166: { TTYC_KIC6, NULL, KEYC_IC|KEYC_SHIFT|KEYC_CTRL, 0 },
167: { TTYC_KIC7, NULL, KEYC_IC|KEYC_ESCAPE|KEYC_CTRL, 0 },
168: { TTYC_KLFT2, NULL, KEYC_LEFT|KEYC_SHIFT, 0 },
169: { TTYC_KLFT3, NULL, KEYC_LEFT|KEYC_ESCAPE, 0 },
170: { TTYC_KLFT4, NULL, KEYC_LEFT|KEYC_SHIFT|KEYC_ESCAPE, 0 },
171: { TTYC_KLFT5, NULL, KEYC_LEFT|KEYC_CTRL, 0 },
172: { TTYC_KLFT6, NULL, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL, 0 },
173: { TTYC_KLFT7, NULL, KEYC_LEFT|KEYC_ESCAPE|KEYC_CTRL, 0 },
174: { TTYC_KNXT2, NULL, KEYC_NPAGE|KEYC_SHIFT, 0 },
175: { TTYC_KNXT3, NULL, KEYC_NPAGE|KEYC_ESCAPE, 0 },
176: { TTYC_KNXT4, NULL, KEYC_NPAGE|KEYC_SHIFT|KEYC_ESCAPE, 0 },
177: { TTYC_KNXT5, NULL, KEYC_NPAGE|KEYC_CTRL, 0 },
178: { TTYC_KNXT6, NULL, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL, 0 },
179: { TTYC_KNXT7, NULL, KEYC_NPAGE|KEYC_ESCAPE|KEYC_CTRL, 0 },
180: { TTYC_KPRV2, NULL, KEYC_PPAGE|KEYC_SHIFT, 0 },
181: { TTYC_KPRV3, NULL, KEYC_PPAGE|KEYC_ESCAPE, 0 },
182: { TTYC_KPRV4, NULL, KEYC_PPAGE|KEYC_SHIFT|KEYC_ESCAPE, 0 },
183: { TTYC_KPRV5, NULL, KEYC_PPAGE|KEYC_CTRL, 0 },
184: { TTYC_KPRV6, NULL, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL, 0 },
185: { TTYC_KPRV7, NULL, KEYC_PPAGE|KEYC_ESCAPE|KEYC_CTRL, 0 },
186: { TTYC_KRIT2, NULL, KEYC_RIGHT|KEYC_SHIFT, 0 },
187: { TTYC_KRIT3, NULL, KEYC_RIGHT|KEYC_ESCAPE, 0 },
188: { TTYC_KRIT4, NULL, KEYC_RIGHT|KEYC_SHIFT|KEYC_ESCAPE, 0 },
189: { TTYC_KRIT5, NULL, KEYC_RIGHT|KEYC_CTRL, 0 },
190: { TTYC_KRIT6, NULL, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL, 0 },
191: { TTYC_KRIT7, NULL, KEYC_RIGHT|KEYC_ESCAPE|KEYC_CTRL, 0 },
192: { TTYC_KUP2, NULL, KEYC_UP|KEYC_SHIFT, 0 },
193: { TTYC_KUP3, NULL, KEYC_UP|KEYC_ESCAPE, 0 },
194: { TTYC_KUP4, NULL, KEYC_UP|KEYC_SHIFT|KEYC_ESCAPE, 0 },
195: { TTYC_KUP5, NULL, KEYC_UP|KEYC_CTRL, 0 },
196: { TTYC_KUP6, NULL, KEYC_UP|KEYC_SHIFT|KEYC_CTRL, 0 },
197: { TTYC_KUP7, NULL, KEYC_UP|KEYC_ESCAPE|KEYC_CTRL, 0 },
1.1 nicm 198: };
199:
1.16 nicm 200: void
201: tty_keys_add(struct tty *tty, const char *s, int key)
202: {
203: size_t size;
1.1 nicm 204:
1.16 nicm 205: if (tty_keys_find(tty, s, strlen(s), &size) == NULL) {
206: log_debug("new key 0x%x: %s", key, s);
207: tty_keys_add1(&tty->key_tree, s, key);
208: }
1.1 nicm 209: }
210:
1.16 nicm 211: /* Add next node to the tree. */
1.1 nicm 212: void
1.16 nicm 213: tty_keys_add1(struct tty_key **tkp, const char *s, int key)
1.1 nicm 214: {
1.16 nicm 215: struct tty_key *tk;
1.1 nicm 216:
1.16 nicm 217: /* Allocate a tree entry if there isn't one already. */
218: tk = *tkp;
219: if (tk == NULL) {
220: tk = *tkp = xcalloc(1, sizeof *tk);
221: tk->ch = *s;
222: tk->key = KEYC_NONE;
223: }
224:
225: /* Find the next entry. */
226: if (*s == tk->ch) {
227: /* Move forward in string. */
228: s++;
229:
230: /* If this is the end of the string, no more is necessary. */
231: if (*s == '\0') {
232: tk->key = key;
233: return;
234: }
235:
236: /* Use the child tree for the next character. */
237: tkp = &tk->next;
238: } else {
239: if (*s < tk->ch)
240: tkp = &tk->left;
241: else if (*s > tk->ch)
242: tkp = &tk->right;
243: }
244:
245: /* And recurse to add it. */
246: tty_keys_add1(tkp, s, key);
1.1 nicm 247: }
248:
1.16 nicm 249: /* Initialise a key tree from the table. */
1.1 nicm 250: void
251: tty_keys_init(struct tty *tty)
252: {
253: struct tty_key_ent *tke;
254: u_int i;
255: const char *s;
256:
1.16 nicm 257: tty->key_tree = NULL;
1.1 nicm 258: for (i = 0; i < nitems(tty_keys); i++) {
259: tke = &tty_keys[i];
260:
261: if (tke->flags & TTYKEY_RAW)
262: s = tke->string;
263: else {
264: if (!tty_term_has(tty->term, tke->code))
265: continue;
266: s = tty_term_string(tty->term, tke->code);
267: }
1.16 nicm 268: if (s[0] != '\033' || s[1] == '\0')
269: continue;
1.1 nicm 270:
1.15 nicm 271: tty_keys_add(tty, s + 1, tke->key);
1.1 nicm 272: }
273: }
274:
1.16 nicm 275: /* Free the entire key tree. */
1.1 nicm 276: void
277: tty_keys_free(struct tty *tty)
278: {
1.16 nicm 279: tty_keys_free1(tty->key_tree);
280: }
1.1 nicm 281:
1.16 nicm 282: /* Free a single key. */
283: void
284: tty_keys_free1(struct tty_key *tk)
285: {
286: if (tk->next != NULL)
287: tty_keys_free1(tk->next);
288: if (tk->left != NULL)
289: tty_keys_free1(tk->left);
290: if (tk->right != NULL)
291: tty_keys_free1(tk->right);
292: xfree(tk);
293:
1.1 nicm 294: }
295:
1.16 nicm 296: /* Lookup a key in the tree. */
1.1 nicm 297: struct tty_key *
1.16 nicm 298: tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size)
1.1 nicm 299: {
1.16 nicm 300: *size = 0;
301: return (tty_keys_find1(tty->key_tree, buf, len, size));
302: }
1.1 nicm 303:
1.16 nicm 304: /* Find the next node. */
305: struct tty_key *
306: tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
307: {
308: /* If the node is NULL, this is the end of the tree. No match. */
309: if (tk == NULL)
1.1 nicm 310: return (NULL);
311:
1.16 nicm 312: /* Pick the next in the sequence. */
313: if (tk->ch == *buf) {
314: /* Move forward in the string. */
315: buf++; len--;
316: (*size)++;
1.1 nicm 317:
1.16 nicm 318: /* At the end of the string, return the current node. */
319: if (len == 0)
320: return (tk);
1.1 nicm 321:
1.16 nicm 322: /* Move into the next tree for the following character. */
323: tk = tk->next;
324: } else {
325: if (*buf < tk->ch)
326: tk = tk->left;
327: else if (*buf > tk->ch)
328: tk = tk->right;
1.1 nicm 329: }
330:
1.16 nicm 331: /* Move to the next in the tree. */
332: return (tty_keys_find1(tk, buf, len, size));
1.1 nicm 333: }
334:
1.16 nicm 335: /*
336: * Process at least one key in the buffer and invoke tty->key_callback. Return
337: * 1 if there are no further keys, or 0 if there is more in the buffer.
338: */
1.1 nicm 339: int
1.14 nicm 340: tty_keys_next(struct tty *tty)
1.1 nicm 341: {
1.14 nicm 342: struct tty_key *tk;
343: struct timeval tv;
344: struct mouse_event mouse;
1.18 nicm 345: const char *buf;
1.14 nicm 346: size_t len, size;
347: cc_t bspace;
348: int key;
1.1 nicm 349:
1.13 nicm 350: buf = EVBUFFER_DATA(tty->event->input);
351: len = EVBUFFER_LENGTH(tty->event->input);
1.1 nicm 352: if (len == 0)
1.14 nicm 353: return (0);
1.1 nicm 354: log_debug("keys are %zu (%.*s)", len, (int) len, buf);
355:
356: /* If a normal key, return it. */
357: if (*buf != '\033') {
1.19 nicm 358: key = (u_char) *buf;
1.16 nicm 359: evbuffer_drain(tty->event->input, 1);
1.3 nicm 360:
361: /*
362: * Check for backspace key using termios VERASE - the terminfo
363: * kbs entry is extremely unreliable, so cannot be safely
364: * used. termios should have a better idea.
365: */
366: bspace = tty->tio.c_cc[VERASE];
1.14 nicm 367: if (bspace != _POSIX_VDISABLE && key == bspace)
368: key = KEYC_BSPACE;
1.16 nicm 369: goto handle_key;
1.1 nicm 370: }
371:
372: /* Look for matching key string and return if found. */
373: tk = tty_keys_find(tty, buf + 1, len - 1, &size);
374: if (tk != NULL) {
1.14 nicm 375: key = tk->key;
1.16 nicm 376: goto found_key;
1.1 nicm 377: }
378:
379: /* Not found. Is this a mouse key press? */
1.14 nicm 380: key = tty_keys_mouse(buf, len, &size, &mouse);
381: if (key != KEYC_NONE) {
1.13 nicm 382: evbuffer_drain(tty->event->input, size);
1.16 nicm 383: goto handle_key;
1.11 nicm 384: }
385:
386: /* Not found. Try to parse a key with an xterm-style modifier. */
1.14 nicm 387: key = xterm_keys_find(buf, len, &size);
388: if (key != KEYC_NONE) {
1.13 nicm 389: evbuffer_drain(tty->event->input, size);
1.16 nicm 390: goto handle_key;
1.1 nicm 391: }
392:
393: /* Skip the escape. */
394: buf++;
395: len--;
396:
397: /* Is there a normal key following? */
398: if (len != 0 && *buf != '\033') {
1.16 nicm 399: key = *buf | KEYC_ESCAPE;
400: evbuffer_drain(tty->event->input, 2);
401: goto handle_key;
1.1 nicm 402: }
403:
404: /* Or a key string? */
405: if (len > 1) {
406: tk = tty_keys_find(tty, buf + 1, len - 1, &size);
407: if (tk != NULL) {
1.14 nicm 408: key = tk->key | KEYC_ESCAPE;
1.16 nicm 409: size++; /* include escape */
410: goto found_key;
1.1 nicm 411: }
412: }
413:
1.16 nicm 414: /* Escape and then nothing useful - fall through. */
415:
416: partial_key:
1.14 nicm 417: /*
1.16 nicm 418: * Escape but no key string. If have already seen an escape, then the
1.14 nicm 419: * timer must have expired, so give up waiting and send the escape.
420: */
421: if (tty->flags & TTY_ESCAPE) {
422: evbuffer_drain(tty->event->input, 1);
423: key = '\033';
1.16 nicm 424: goto handle_key;
1.14 nicm 425: }
426:
1.16 nicm 427: /* Fall through to start the timer. */
428:
429: start_timer:
1.14 nicm 430: /* Start the timer and wait for expiry or more data. */
431: tv.tv_sec = 0;
432: tv.tv_usec = ESCAPE_PERIOD * 1000L;
433:
434: evtimer_del(&tty->key_timer);
435: evtimer_set(&tty->key_timer, tty_keys_callback, tty);
436: evtimer_add(&tty->key_timer, &tv);
437:
438: tty->flags |= TTY_ESCAPE;
439: return (0);
1.1 nicm 440:
1.16 nicm 441: found_key:
442: if (tk->next != NULL) {
443: /* Partial key. Start the timer if not already expired. */
444: if (!(tty->flags & TTY_ESCAPE))
445: goto start_timer;
446:
447: /* Otherwise, if no key, send the escape alone. */
448: if (tk->key == KEYC_NONE)
449: goto partial_key;
450:
451: /* Or fall through to send the partial key found. */
452: }
453: evbuffer_drain(tty->event->input, size + 1);
454:
455: goto handle_key;
456:
457: handle_key:
458: evtimer_del(&tty->key_timer);
459:
1.14 nicm 460: tty->key_callback(key, &mouse, tty->key_data);
1.16 nicm 461:
1.1 nicm 462: tty->flags &= ~TTY_ESCAPE;
1.14 nicm 463: return (1);
464: }
465:
1.16 nicm 466: /* Key timer callback. */
1.14 nicm 467: void
468: tty_keys_callback(unused int fd, unused short events, void *data)
469: {
470: struct tty *tty = data;
471:
1.16 nicm 472: if (!(tty->flags & TTY_ESCAPE))
473: return;
474:
475: while (tty_keys_next(tty))
476: ;
1.1 nicm 477: }
478:
1.16 nicm 479: /* Handle mouse key input. */
1.1 nicm 480: int
1.18 nicm 481: tty_keys_mouse(const char *buf, size_t len, size_t *size, struct mouse_event *m)
1.1 nicm 482: {
483: /*
484: * Mouse sequences are \033[M followed by three characters indicating
485: * buttons, X and Y, all based at 32 with 1,1 top-left.
486: */
487:
488: if (len != 6 || memcmp(buf, "\033[M", 3) != 0)
489: return (KEYC_NONE);
490: *size = 6;
1.16 nicm 491:
492: log_debug("mouse input is: %.*s", (int) len, buf);
1.1 nicm 493:
1.5 nicm 494: m->b = buf[3];
495: m->x = buf[4];
496: m->y = buf[5];
497: if (m->b < 32 || m->x < 33 || m->y < 33)
1.1 nicm 498: return (KEYC_NONE);
1.5 nicm 499: m->b -= 32;
500: m->x -= 33;
501: m->y -= 33;
1.1 nicm 502: return (KEYC_MOUSE);
503: }
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