Annotation of src/usr.bin/tmux/tty-keys.c, Revision 1.56
1.56 ! nicm 1: /* $OpenBSD: tty-keys.c,v 1.55 2013/03/22 10:33:50 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:
1.35 nicm 22: #include <limits.h>
23: #include <stdlib.h>
1.1 nicm 24: #include <string.h>
1.3 nicm 25: #include <termios.h>
26: #include <unistd.h>
1.1 nicm 27:
28: #include "tmux.h"
29:
1.9 nicm 30: /*
1.50 nicm 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.
1.9 nicm 34: */
35:
1.16 nicm 36: void tty_keys_add1(struct tty_key **, const char *, int);
37: void tty_keys_add(struct tty *, const char *, int);
38: void tty_keys_free1(struct tty_key *);
39: struct tty_key *tty_keys_find1(
1.27 nicm 40: struct tty_key *, const char *, size_t, size_t *);
1.16 nicm 41: struct tty_key *tty_keys_find(struct tty *, const char *, size_t, size_t *);
42: void tty_keys_callback(int, short, void *);
1.40 nicm 43: int tty_keys_mouse(struct tty *, const char *, size_t, size_t *);
1.35 nicm 44: int tty_keys_device(struct tty *, const char *, size_t, size_t *);
1.1 nicm 45:
1.48 nicm 46: /* Default raw keys. */
47: struct tty_default_key_raw {
1.1 nicm 48: const char *string;
49: int key;
50: };
1.48 nicm 51: const struct tty_default_key_raw tty_default_raw_keys[] = {
1.1 nicm 52: /*
1.8 nicm 53: * Numeric keypad. Just use the vt100 escape sequences here and always
54: * put the terminal into keypad_xmit mode. Translation of numbers
55: * mode/applications mode is done in input-keys.c.
1.1 nicm 56: */
1.48 nicm 57: { "\033Oo", KEYC_KP_SLASH },
58: { "\033Oj", KEYC_KP_STAR },
59: { "\033Om", KEYC_KP_MINUS },
60: { "\033Ow", KEYC_KP_SEVEN },
61: { "\033Ox", KEYC_KP_EIGHT },
62: { "\033Oy", KEYC_KP_NINE },
63: { "\033Ok", KEYC_KP_PLUS },
64: { "\033Ot", KEYC_KP_FOUR },
65: { "\033Ou", KEYC_KP_FIVE },
66: { "\033Ov", KEYC_KP_SIX },
67: { "\033Oq", KEYC_KP_ONE },
68: { "\033Or", KEYC_KP_TWO },
69: { "\033Os", KEYC_KP_THREE },
70: { "\033OM", KEYC_KP_ENTER },
71: { "\033Op", KEYC_KP_ZERO },
72: { "\033On", KEYC_KP_PERIOD },
1.10 nicm 73:
1.29 nicm 74: /* Arrow keys. */
1.48 nicm 75: { "\033OA", KEYC_UP },
76: { "\033OB", KEYC_DOWN },
77: { "\033OC", KEYC_RIGHT },
78: { "\033OD", KEYC_LEFT },
79:
80: { "\033[A", KEYC_UP },
81: { "\033[B", KEYC_DOWN },
82: { "\033[C", KEYC_RIGHT },
83: { "\033[D", KEYC_LEFT },
1.21 nicm 84:
85: /* rxvt-style arrow + modifier keys. */
1.48 nicm 86: { "\033Oa", KEYC_UP|KEYC_CTRL },
87: { "\033Ob", KEYC_DOWN|KEYC_CTRL },
88: { "\033Oc", KEYC_RIGHT|KEYC_CTRL },
89: { "\033Od", KEYC_LEFT|KEYC_CTRL },
90:
91: { "\033[a", KEYC_UP|KEYC_SHIFT },
92: { "\033[b", KEYC_DOWN|KEYC_SHIFT },
93: { "\033[c", KEYC_RIGHT|KEYC_SHIFT },
94: { "\033[d", KEYC_LEFT|KEYC_SHIFT },
95:
96: /* rxvt-style function + modifier keys (C = ^, S = $, C-S = @). */
97: { "\033[11^", KEYC_F1|KEYC_CTRL },
98: { "\033[12^", KEYC_F2|KEYC_CTRL },
99: { "\033[13^", KEYC_F3|KEYC_CTRL },
100: { "\033[14^", KEYC_F4|KEYC_CTRL },
101: { "\033[15^", KEYC_F5|KEYC_CTRL },
102: { "\033[17^", KEYC_F6|KEYC_CTRL },
103: { "\033[18^", KEYC_F7|KEYC_CTRL },
104: { "\033[19^", KEYC_F8|KEYC_CTRL },
105: { "\033[20^", KEYC_F9|KEYC_CTRL },
106: { "\033[21^", KEYC_F10|KEYC_CTRL },
107: { "\033[23^", KEYC_F11|KEYC_CTRL },
108: { "\033[24^", KEYC_F12|KEYC_CTRL },
109: { "\033[25^", KEYC_F13|KEYC_CTRL },
110: { "\033[26^", KEYC_F14|KEYC_CTRL },
111: { "\033[28^", KEYC_F15|KEYC_CTRL },
112: { "\033[29^", KEYC_F16|KEYC_CTRL },
113: { "\033[31^", KEYC_F17|KEYC_CTRL },
114: { "\033[32^", KEYC_F18|KEYC_CTRL },
115: { "\033[33^", KEYC_F19|KEYC_CTRL },
116: { "\033[34^", KEYC_F20|KEYC_CTRL },
117: { "\033[2^", KEYC_IC|KEYC_CTRL },
118: { "\033[3^", KEYC_DC|KEYC_CTRL },
119: { "\033[7^", KEYC_HOME|KEYC_CTRL },
120: { "\033[8^", KEYC_END|KEYC_CTRL },
121: { "\033[6^", KEYC_NPAGE|KEYC_CTRL },
122: { "\033[5^", KEYC_PPAGE|KEYC_CTRL },
123:
124: { "\033[11$", KEYC_F1|KEYC_SHIFT },
125: { "\033[12$", KEYC_F2|KEYC_SHIFT },
126: { "\033[13$", KEYC_F3|KEYC_SHIFT },
127: { "\033[14$", KEYC_F4|KEYC_SHIFT },
128: { "\033[15$", KEYC_F5|KEYC_SHIFT },
129: { "\033[17$", KEYC_F6|KEYC_SHIFT },
130: { "\033[18$", KEYC_F7|KEYC_SHIFT },
131: { "\033[19$", KEYC_F8|KEYC_SHIFT },
132: { "\033[20$", KEYC_F9|KEYC_SHIFT },
133: { "\033[21$", KEYC_F10|KEYC_SHIFT },
134: { "\033[23$", KEYC_F11|KEYC_SHIFT },
135: { "\033[24$", KEYC_F12|KEYC_SHIFT },
136: { "\033[25$", KEYC_F13|KEYC_SHIFT },
137: { "\033[26$", KEYC_F14|KEYC_SHIFT },
138: { "\033[28$", KEYC_F15|KEYC_SHIFT },
139: { "\033[29$", KEYC_F16|KEYC_SHIFT },
140: { "\033[31$", KEYC_F17|KEYC_SHIFT },
141: { "\033[32$", KEYC_F18|KEYC_SHIFT },
142: { "\033[33$", KEYC_F19|KEYC_SHIFT },
143: { "\033[34$", KEYC_F20|KEYC_SHIFT },
144: { "\033[2$", KEYC_IC|KEYC_SHIFT },
145: { "\033[3$", KEYC_DC|KEYC_SHIFT },
146: { "\033[7$", KEYC_HOME|KEYC_SHIFT },
147: { "\033[8$", KEYC_END|KEYC_SHIFT },
148: { "\033[6$", KEYC_NPAGE|KEYC_SHIFT },
149: { "\033[5$", KEYC_PPAGE|KEYC_SHIFT },
150:
151: { "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT },
152: { "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT },
153: { "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT },
154: { "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT },
155: { "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT },
156: { "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT },
157: { "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT },
158: { "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT },
159: { "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT },
160: { "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT },
161: { "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT },
162: { "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT },
163: { "\033[25@", KEYC_F13|KEYC_CTRL|KEYC_SHIFT },
164: { "\033[26@", KEYC_F14|KEYC_CTRL|KEYC_SHIFT },
165: { "\033[28@", KEYC_F15|KEYC_CTRL|KEYC_SHIFT },
166: { "\033[29@", KEYC_F16|KEYC_CTRL|KEYC_SHIFT },
167: { "\033[31@", KEYC_F17|KEYC_CTRL|KEYC_SHIFT },
168: { "\033[32@", KEYC_F18|KEYC_CTRL|KEYC_SHIFT },
169: { "\033[33@", KEYC_F19|KEYC_CTRL|KEYC_SHIFT },
170: { "\033[34@", KEYC_F20|KEYC_CTRL|KEYC_SHIFT },
171: { "\033[2@", KEYC_IC|KEYC_CTRL|KEYC_SHIFT },
172: { "\033[3@", KEYC_DC|KEYC_CTRL|KEYC_SHIFT },
173: { "\033[7@", KEYC_HOME|KEYC_CTRL|KEYC_SHIFT },
174: { "\033[8@", KEYC_END|KEYC_CTRL|KEYC_SHIFT },
175: { "\033[6@", KEYC_NPAGE|KEYC_CTRL|KEYC_SHIFT },
176: { "\033[5@", KEYC_PPAGE|KEYC_CTRL|KEYC_SHIFT },
1.56 ! nicm 177:
! 178: /* Focus tracking. */
! 179: { "\033[I", KEYC_FOCUS_IN },
! 180: { "\033[O", KEYC_FOCUS_OUT },
1.48 nicm 181: };
1.29 nicm 182:
1.48 nicm 183: /* Default terminfo(5) keys. */
184: struct tty_default_key_code {
185: enum tty_code_code code;
186: int key;
187: };
188: const struct tty_default_key_code tty_default_code_keys[] = {
1.29 nicm 189: /* Function keys. */
1.48 nicm 190: { TTYC_KF1, KEYC_F1 },
191: { TTYC_KF2, KEYC_F2 },
192: { TTYC_KF3, KEYC_F3 },
193: { TTYC_KF4, KEYC_F4 },
194: { TTYC_KF5, KEYC_F5 },
195: { TTYC_KF6, KEYC_F6 },
196: { TTYC_KF7, KEYC_F7 },
197: { TTYC_KF8, KEYC_F8 },
198: { TTYC_KF9, KEYC_F9 },
199: { TTYC_KF10, KEYC_F10 },
200: { TTYC_KF11, KEYC_F11 },
201: { TTYC_KF12, KEYC_F12 },
202: { TTYC_KF13, KEYC_F13 },
203: { TTYC_KF14, KEYC_F14 },
204: { TTYC_KF15, KEYC_F15 },
205: { TTYC_KF16, KEYC_F16 },
206: { TTYC_KF17, KEYC_F17 },
207: { TTYC_KF18, KEYC_F18 },
208: { TTYC_KF19, KEYC_F19 },
209: { TTYC_KF20, KEYC_F20 },
210: { TTYC_KICH1, KEYC_IC },
211: { TTYC_KDCH1, KEYC_DC },
212: { TTYC_KHOME, KEYC_HOME },
213: { TTYC_KEND, KEYC_END },
214: { TTYC_KNP, KEYC_NPAGE },
215: { TTYC_KPP, KEYC_PPAGE },
216: { TTYC_KCBT, KEYC_BTAB },
1.29 nicm 217:
218: /* Arrow keys from terminfo. */
1.48 nicm 219: { TTYC_KCUU1, KEYC_UP },
220: { TTYC_KCUD1, KEYC_DOWN },
221: { TTYC_KCUB1, KEYC_LEFT },
222: { TTYC_KCUF1, KEYC_RIGHT },
1.29 nicm 223:
224: /* Key and modifier capabilities. */
1.48 nicm 225: { TTYC_KDC2, KEYC_DC|KEYC_SHIFT },
226: { TTYC_KDC3, KEYC_DC|KEYC_ESCAPE },
227: { TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_ESCAPE },
228: { TTYC_KDC5, KEYC_DC|KEYC_CTRL },
229: { TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL },
230: { TTYC_KDC7, KEYC_DC|KEYC_ESCAPE|KEYC_CTRL },
231: { TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT },
232: { TTYC_KDN3, KEYC_DOWN|KEYC_ESCAPE },
233: { TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_ESCAPE },
234: { TTYC_KDN5, KEYC_DOWN|KEYC_CTRL },
235: { TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL },
236: { TTYC_KDN7, KEYC_DOWN|KEYC_ESCAPE|KEYC_CTRL },
237: { TTYC_KEND2, KEYC_END|KEYC_SHIFT },
238: { TTYC_KEND3, KEYC_END|KEYC_ESCAPE },
239: { TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_ESCAPE },
240: { TTYC_KEND5, KEYC_END|KEYC_CTRL },
241: { TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL },
242: { TTYC_KEND7, KEYC_END|KEYC_ESCAPE|KEYC_CTRL },
243: { TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT },
244: { TTYC_KHOM3, KEYC_HOME|KEYC_ESCAPE },
245: { TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_ESCAPE },
246: { TTYC_KHOM5, KEYC_HOME|KEYC_CTRL },
247: { TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL },
248: { TTYC_KHOM7, KEYC_HOME|KEYC_ESCAPE|KEYC_CTRL },
249: { TTYC_KIC2, KEYC_IC|KEYC_SHIFT },
250: { TTYC_KIC3, KEYC_IC|KEYC_ESCAPE },
251: { TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_ESCAPE },
252: { TTYC_KIC5, KEYC_IC|KEYC_CTRL },
253: { TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL },
254: { TTYC_KIC7, KEYC_IC|KEYC_ESCAPE|KEYC_CTRL },
255: { TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT },
256: { TTYC_KLFT3, KEYC_LEFT|KEYC_ESCAPE },
257: { TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_ESCAPE },
258: { TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL },
259: { TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL },
260: { TTYC_KLFT7, KEYC_LEFT|KEYC_ESCAPE|KEYC_CTRL },
261: { TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT },
262: { TTYC_KNXT3, KEYC_NPAGE|KEYC_ESCAPE },
263: { TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_ESCAPE },
264: { TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL },
265: { TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL },
266: { TTYC_KNXT7, KEYC_NPAGE|KEYC_ESCAPE|KEYC_CTRL },
267: { TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT },
268: { TTYC_KPRV3, KEYC_PPAGE|KEYC_ESCAPE },
269: { TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_ESCAPE },
270: { TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL },
271: { TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL },
272: { TTYC_KPRV7, KEYC_PPAGE|KEYC_ESCAPE|KEYC_CTRL },
273: { TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT },
274: { TTYC_KRIT3, KEYC_RIGHT|KEYC_ESCAPE },
275: { TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_ESCAPE },
276: { TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL },
277: { TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL },
278: { TTYC_KRIT7, KEYC_RIGHT|KEYC_ESCAPE|KEYC_CTRL },
279: { TTYC_KUP2, KEYC_UP|KEYC_SHIFT },
280: { TTYC_KUP3, KEYC_UP|KEYC_ESCAPE },
281: { TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_ESCAPE },
282: { TTYC_KUP5, KEYC_UP|KEYC_CTRL },
283: { TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL },
284: { TTYC_KUP7, KEYC_UP|KEYC_ESCAPE|KEYC_CTRL },
1.1 nicm 285: };
286:
1.48 nicm 287: /* Add key to tree. */
1.16 nicm 288: void
289: tty_keys_add(struct tty *tty, const char *s, int key)
290: {
1.29 nicm 291: struct tty_key *tk;
292: size_t size;
293: const char *keystr;
1.1 nicm 294:
1.29 nicm 295: keystr = key_string_lookup_key(key);
296: if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) {
297: log_debug("new key %s: 0x%x (%s)", s, key, keystr);
1.16 nicm 298: tty_keys_add1(&tty->key_tree, s, key);
1.29 nicm 299: } else {
300: log_debug("replacing key %s: 0x%x (%s)", s, key, keystr);
301: tk->key = key;
1.16 nicm 302: }
1.1 nicm 303: }
304:
1.16 nicm 305: /* Add next node to the tree. */
1.1 nicm 306: void
1.16 nicm 307: tty_keys_add1(struct tty_key **tkp, const char *s, int key)
1.1 nicm 308: {
1.16 nicm 309: struct tty_key *tk;
1.1 nicm 310:
1.16 nicm 311: /* Allocate a tree entry if there isn't one already. */
312: tk = *tkp;
313: if (tk == NULL) {
314: tk = *tkp = xcalloc(1, sizeof *tk);
315: tk->ch = *s;
316: tk->key = KEYC_NONE;
317: }
318:
319: /* Find the next entry. */
320: if (*s == tk->ch) {
321: /* Move forward in string. */
322: s++;
323:
324: /* If this is the end of the string, no more is necessary. */
325: if (*s == '\0') {
326: tk->key = key;
327: return;
328: }
329:
330: /* Use the child tree for the next character. */
331: tkp = &tk->next;
1.27 nicm 332: } else {
1.16 nicm 333: if (*s < tk->ch)
334: tkp = &tk->left;
335: else if (*s > tk->ch)
336: tkp = &tk->right;
337: }
338:
339: /* And recurse to add it. */
340: tty_keys_add1(tkp, s, key);
1.1 nicm 341: }
342:
1.16 nicm 343: /* Initialise a key tree from the table. */
1.1 nicm 344: void
1.48 nicm 345: tty_keys_build(struct tty *tty)
1.1 nicm 346: {
1.48 nicm 347: const struct tty_default_key_raw *tdkr;
348: const struct tty_default_key_code *tdkc;
349: u_int i;
350: const char *s;
1.1 nicm 351:
1.48 nicm 352: if (tty->key_tree != NULL)
1.49 nicm 353: tty_keys_free (tty);
1.16 nicm 354: tty->key_tree = NULL;
1.1 nicm 355:
1.48 nicm 356: for (i = 0; i < nitems(tty_default_raw_keys); i++) {
357: tdkr = &tty_default_raw_keys[i];
358:
359: s = tdkr->string;
1.51 nicm 360: if (*s != '\0')
361: tty_keys_add(tty, s, tdkr->key);
1.48 nicm 362: }
363: for (i = 0; i < nitems(tty_default_code_keys); i++) {
364: tdkc = &tty_default_code_keys[i];
365:
366: s = tty_term_string(tty->term, tdkc->code);
1.51 nicm 367: if (*s != '\0')
368: tty_keys_add(tty, s, tdkc->key);
1.1 nicm 369:
370: }
371: }
372:
1.16 nicm 373: /* Free the entire key tree. */
1.1 nicm 374: void
375: tty_keys_free(struct tty *tty)
376: {
1.16 nicm 377: tty_keys_free1(tty->key_tree);
378: }
1.1 nicm 379:
1.16 nicm 380: /* Free a single key. */
381: void
382: tty_keys_free1(struct tty_key *tk)
383: {
384: if (tk->next != NULL)
385: tty_keys_free1(tk->next);
386: if (tk->left != NULL)
387: tty_keys_free1(tk->left);
388: if (tk->right != NULL)
389: tty_keys_free1(tk->right);
1.42 nicm 390: free(tk);
1.1 nicm 391: }
392:
1.16 nicm 393: /* Lookup a key in the tree. */
1.1 nicm 394: struct tty_key *
1.16 nicm 395: tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size)
1.1 nicm 396: {
1.16 nicm 397: *size = 0;
398: return (tty_keys_find1(tty->key_tree, buf, len, size));
399: }
1.1 nicm 400:
1.16 nicm 401: /* Find the next node. */
402: struct tty_key *
403: tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
404: {
405: /* If the node is NULL, this is the end of the tree. No match. */
406: if (tk == NULL)
1.1 nicm 407: return (NULL);
408:
1.16 nicm 409: /* Pick the next in the sequence. */
410: if (tk->ch == *buf) {
411: /* Move forward in the string. */
412: buf++; len--;
413: (*size)++;
1.1 nicm 414:
1.16 nicm 415: /* At the end of the string, return the current node. */
1.30 nicm 416: if (len == 0 || (tk->next == NULL && tk->key != KEYC_NONE))
1.16 nicm 417: return (tk);
1.1 nicm 418:
1.16 nicm 419: /* Move into the next tree for the following character. */
420: tk = tk->next;
421: } else {
422: if (*buf < tk->ch)
423: tk = tk->left;
424: else if (*buf > tk->ch)
425: tk = tk->right;
1.1 nicm 426: }
427:
1.16 nicm 428: /* Move to the next in the tree. */
429: return (tty_keys_find1(tk, buf, len, size));
1.1 nicm 430: }
431:
1.16 nicm 432: /*
433: * Process at least one key in the buffer and invoke tty->key_callback. Return
1.22 nicm 434: * 0 if there are no further keys, or 1 if there could be more in the buffer.
1.16 nicm 435: */
1.1 nicm 436: int
1.14 nicm 437: tty_keys_next(struct tty *tty)
1.1 nicm 438: {
1.40 nicm 439: struct tty_key *tk;
440: struct timeval tv;
441: const char *buf;
442: size_t len, size;
443: cc_t bspace;
444: int key, delay;
1.1 nicm 445:
1.51 nicm 446: /* Get key buffer. */
1.13 nicm 447: buf = EVBUFFER_DATA(tty->event->input);
448: len = EVBUFFER_LENGTH(tty->event->input);
1.1 nicm 449: if (len == 0)
1.14 nicm 450: return (0);
1.1 nicm 451: log_debug("keys are %zu (%.*s)", len, (int) len, buf);
452:
1.35 nicm 453: /* Is this device attributes response? */
454: switch (tty_keys_device(tty, buf, len, &size)) {
455: case 0: /* yes */
456: key = KEYC_NONE;
1.51 nicm 457: goto complete_key;
1.35 nicm 458: case -1: /* no, or not valid */
459: break;
460: case 1: /* partial */
461: goto partial_key;
462: }
463:
1.26 nicm 464: /* Is this a mouse key press? */
1.40 nicm 465: switch (tty_keys_mouse(tty, buf, len, &size)) {
1.22 nicm 466: case 0: /* yes */
467: key = KEYC_MOUSE;
1.51 nicm 468: goto complete_key;
1.22 nicm 469: case -1: /* no, or not valid */
1.24 nicm 470: break;
1.22 nicm 471: case 1: /* partial */
472: goto partial_key;
1.11 nicm 473: }
474:
1.26 nicm 475: /* Try to parse a key with an xterm-style modifier. */
1.25 nicm 476: switch (xterm_keys_find(buf, len, &size, &key)) {
477: case 0: /* found */
1.51 nicm 478: goto complete_key;
1.25 nicm 479: case -1: /* not found */
480: break;
481: case 1:
482: goto partial_key;
1.26 nicm 483: }
484:
485: /* Look for matching key string and return if found. */
1.51 nicm 486: tk = tty_keys_find(tty, buf, len, &size);
1.26 nicm 487: if (tk != NULL) {
1.51 nicm 488: if (tk->next != NULL)
489: goto partial_key;
1.26 nicm 490: key = tk->key;
1.51 nicm 491: goto complete_key;
1.1 nicm 492: }
493:
1.51 nicm 494: /* Is this a meta key? */
495: if (len >= 2 && buf[0] == '\033') {
496: if (buf[1] != '\033') {
497: key = buf[1] | KEYC_ESCAPE;
498: size = 2;
499: goto complete_key;
500: }
1.1 nicm 501:
502: tk = tty_keys_find(tty, buf + 1, len - 1, &size);
503: if (tk != NULL) {
1.16 nicm 504: size++; /* include escape */
1.51 nicm 505: if (tk->next != NULL)
506: goto partial_key;
507: key = tk->key;
508: if (key != KEYC_NONE)
509: key |= KEYC_ESCAPE;
510: goto complete_key;
1.1 nicm 511: }
512: }
513:
1.51 nicm 514: first_key:
515: /* No key found, take first. */
516: key = (u_char) *buf;
517: size = 1;
1.16 nicm 518:
1.14 nicm 519: /*
1.51 nicm 520: * Check for backspace key using termios VERASE - the terminfo
521: * kbs entry is extremely unreliable, so cannot be safely
522: * used. termios should have a better idea.
1.14 nicm 523: */
1.51 nicm 524: bspace = tty->tio.c_cc[VERASE];
525: if (bspace != _POSIX_VDISABLE && key == bspace)
526: key = KEYC_BSPACE;
527:
528: goto complete_key;
529:
530: partial_key:
531: log_debug("partial key %.*s", (int) len, buf);
1.14 nicm 532:
1.51 nicm 533: /* If timer is going, check for expiration. */
534: if (tty->flags & TTY_TIMER) {
535: if (evtimer_initialized(&tty->key_timer) &&
536: !evtimer_pending(&tty->key_timer, NULL))
537: goto first_key;
1.39 nicm 538: return (0);
1.51 nicm 539: }
1.39 nicm 540:
1.51 nicm 541: /* Get the time period. */
1.28 nicm 542: delay = options_get_number(&global_options, "escape-time");
543: tv.tv_sec = delay / 1000;
544: tv.tv_usec = (delay % 1000) * 1000L;
1.27 nicm 545:
1.51 nicm 546: /* Start the timer. */
1.36 nicm 547: if (event_initialized(&tty->key_timer))
548: evtimer_del(&tty->key_timer);
1.14 nicm 549: evtimer_set(&tty->key_timer, tty_keys_callback, tty);
550: evtimer_add(&tty->key_timer, &tv);
1.27 nicm 551:
1.51 nicm 552: tty->flags |= TTY_TIMER;
1.14 nicm 553: return (0);
1.1 nicm 554:
1.51 nicm 555: complete_key:
556: log_debug("complete key %.*s %#x", (int) size, buf, key);
1.16 nicm 557:
1.51 nicm 558: /* Remove data from buffer. */
559: evbuffer_drain(tty->event->input, size);
1.16 nicm 560:
1.51 nicm 561: /* Remove key timer. */
1.36 nicm 562: if (event_initialized(&tty->key_timer))
563: evtimer_del(&tty->key_timer);
1.51 nicm 564: tty->flags &= ~TTY_TIMER;
1.56 ! nicm 565:
! 566: /* Check for focus events. */
! 567: if (key == KEYC_FOCUS_OUT) {
! 568: tty->client->flags &= ~CLIENT_FOCUSED;
! 569: return (1);
! 570: } else if (key == KEYC_FOCUS_IN) {
! 571: tty->client->flags |= CLIENT_FOCUSED;
! 572: return (1);
! 573: }
1.16 nicm 574:
1.51 nicm 575: /* Fire the key. */
1.35 nicm 576: if (key != KEYC_NONE)
1.41 nicm 577: server_client_handle_key(tty->client, key);
1.16 nicm 578:
1.14 nicm 579: return (1);
580: }
581:
1.16 nicm 582: /* Key timer callback. */
1.14 nicm 583: void
584: tty_keys_callback(unused int fd, unused short events, void *data)
585: {
586: struct tty *tty = data;
587:
1.51 nicm 588: if (tty->flags & TTY_TIMER) {
589: while (tty_keys_next(tty))
590: ;
591: }
1.1 nicm 592: }
593:
1.27 nicm 594: /*
1.22 nicm 595: * Handle mouse key input. Returns 0 for success, -1 for failure, 1 for partial
596: * (probably a mouse sequence but need more data).
597: */
1.1 nicm 598: int
1.40 nicm 599: tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
1.1 nicm 600: {
1.41 nicm 601: struct mouse_event *m = &tty->mouse;
1.40 nicm 602: struct utf8_data utf8data;
1.55 nicm 603: u_int i, value, x, y, b, sgr, sgr_b, sgr_rel;
604: unsigned char c;
1.33 nicm 605:
1.1 nicm 606: /*
1.33 nicm 607: * Standard mouse sequences are \033[M followed by three characters
1.55 nicm 608: * indicating button, X and Y, all based at 32 with 1,1 top-left.
1.33 nicm 609: *
610: * UTF-8 mouse sequences are similar but the three are expressed as
611: * UTF-8 characters.
1.55 nicm 612: *
613: * SGR extended mouse sequences are \033[< followed by three numbers in
614: * decimal and separated by semicolons indicating button, X and Y. A
615: * trailing 'M' is click or scroll and trailing 'm' release. All are
616: * based at 0 with 1,1 top-left.
1.1 nicm 617: */
618:
1.22 nicm 619: *size = 0;
1.55 nicm 620: x = y = b = sgr = sgr_b = sgr_rel = 0;
1.22 nicm 621:
1.55 nicm 622: /* First two bytes are always \033[. */
1.22 nicm 623: if (buf[0] != '\033')
624: return (-1);
625: if (len == 1)
626: return (1);
627: if (buf[1] != '[')
628: return (-1);
629: if (len == 2)
630: return (1);
631:
1.55 nicm 632: /*
633: * Third byte is M in old standard and UTF-8 extension, < in SGR
634: * extension.
635: */
636: if (buf[2] == 'M') {
637: /* Read the three inputs. */
638: *size = 3;
639: for (i = 0; i < 3; i++) {
640: if (len <= *size)
641: return (1);
642:
643: if (tty->mode & MODE_MOUSE_UTF8) {
644: if (utf8_open(&utf8data, buf[*size])) {
645: if (utf8data.size != 2)
646: return (-1);
647: (*size)++;
648: if (len <= *size)
649: return (1);
650: utf8_append(&utf8data, buf[*size]);
651: value = utf8_combine(&utf8data);
652: } else
653: value = (u_char) buf[*size];
654: (*size)++;
655: } else {
656: value = (u_char) buf[*size];
1.33 nicm 657: (*size)++;
1.55 nicm 658: }
659:
660: if (i == 0)
661: b = value;
662: else if (i == 1)
663: x = value;
664: else
665: y = value;
1.33 nicm 666: }
1.55 nicm 667: log_debug("mouse input: %.*s", (int) *size, buf);
1.16 nicm 668:
1.55 nicm 669: /* Check and return the mouse input. */
670: if (b < 32 || x < 33 || y < 33)
671: return (-1);
672: b -= 32;
673: x -= 33;
674: y -= 33;
675: } else if (buf[2] == '<') {
676: /* Read the three inputs. */
677: *size = 3;
678: while (1) {
679: if (len <= *size)
680: return (1);
681: c = (u_char)buf[(*size)++];
682: if (c == ';')
683: break;
684: if (c < '0' || c > '9')
685: return (-1);
686: sgr_b = 10 * sgr_b + (c - '0');
687: }
688: while (1) {
689: if (len <= *size)
690: return (1);
691: c = (u_char)buf[(*size)++];
692: if (c == ';')
693: break;
694: if (c < '0' || c > '9')
695: return (-1);
696: x = 10 * x + (c - '0');
697: }
698: while (1) {
699: if (len <= *size)
700: return (1);
701: c = (u_char) buf[(*size)++];
702: if (c == 'M' || c == 'm')
703: break;
704: if (c < '0' || c > '9')
705: return (-1);
706: y = 10 * y + (c - '0');
707: }
708: log_debug("mouse input (sgr): %.*s", (int) *size, buf);
1.1 nicm 709:
1.55 nicm 710: /* Check and return the mouse input. */
711: if (x < 1 || y < 1)
712: return (-1);
713: x--;
714: y--;
715: sgr = 1;
716: sgr_rel = (c == 'm');
717:
718: /* Figure out what b would be in old format. */
719: b = sgr_b;
720: if (sgr_rel)
721: b |= 3;
722: } else
1.22 nicm 723: return (-1);
1.45 nicm 724:
725: /* Fill in mouse structure. */
726: if (~m->event & MOUSE_EVENT_WHEEL) {
727: m->lx = m->x;
728: m->ly = m->y;
729: }
730: m->xb = b;
1.55 nicm 731: m->sgr = sgr;
732: m->sgr_xb = sgr_b;
733: m->sgr_rel = sgr_rel;
1.45 nicm 734: if (b & 64) { /* wheel button */
735: b &= 3;
736: if (b == 0)
737: m->wheel = MOUSE_WHEEL_UP;
738: else if (b == 1)
739: m->wheel = MOUSE_WHEEL_DOWN;
740: m->event = MOUSE_EVENT_WHEEL;
741: } else if ((b & 3) == 3) {
742: if (~m->event & MOUSE_EVENT_DRAG && x == m->x && y == m->y) {
743: m->event = MOUSE_EVENT_CLICK;
744: } else
745: m->event = MOUSE_EVENT_DRAG;
746: m->event |= MOUSE_EVENT_UP;
747: } else {
748: if (b & 32) /* drag motion */
749: m->event = MOUSE_EVENT_DRAG;
750: else {
751: if (m->event & MOUSE_EVENT_UP && x == m->x && y == m->y)
752: m->clicks = (m->clicks + 1) % 3;
753: else
754: m->clicks = 0;
755: m->sx = x;
756: m->sy = y;
757: m->event = MOUSE_EVENT_DOWN;
758: }
759: m->button = (b & 3);
760: }
761: m->x = x;
762: m->y = y;
763:
1.35 nicm 764: return (0);
765: }
766:
767: /*
768: * Handle device attributes input. Returns 0 for success, -1 for failure, 1 for
769: * partial.
770: */
771: int
772: tty_keys_device(struct tty *tty, const char *buf, size_t len, size_t *size)
773: {
1.47 nicm 774: u_int i, class;
1.35 nicm 775: char tmp[64], *endptr;
776:
777: /*
1.38 nicm 778: * Primary device attributes are \033[?a;b and secondary are
1.46 nicm 779: * \033[>a;b;c.
1.35 nicm 780: */
781:
782: *size = 0;
783:
1.46 nicm 784: /* First three bytes are always \033[?. */
1.35 nicm 785: if (buf[0] != '\033')
786: return (-1);
787: if (len == 1)
788: return (1);
789: if (buf[1] != '[')
790: return (-1);
791: if (len == 2)
792: return (1);
1.38 nicm 793: if (buf[2] != '>' && buf[2] != '?')
1.35 nicm 794: return (-1);
795: if (len == 3)
796: return (1);
797:
798: /* Copy the rest up to a 'c'. */
799: for (i = 0; i < (sizeof tmp) - 1 && buf[3 + i] != 'c'; i++) {
800: if (3 + i == len)
801: return (1);
802: tmp[i] = buf[3 + i];
803: }
804: if (i == (sizeof tmp) - 1)
805: return (-1);
806: tmp[i] = '\0';
807: *size = 4 + i;
1.38 nicm 808:
1.46 nicm 809: /* Only primary is of interest. */
810: if (buf[2] != '?')
1.38 nicm 811: return (0);
1.35 nicm 812:
1.46 nicm 813: /* Convert service class. */
1.47 nicm 814: class = strtoul(tmp, &endptr, 10);
1.46 nicm 815: if (*endptr != ';')
1.47 nicm 816: class = 0;
1.46 nicm 817:
1.47 nicm 818: log_debug("received service class %u", class);
819: tty_set_class(tty, class);
1.35 nicm 820:
1.22 nicm 821: return (0);
1.1 nicm 822: }
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