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/* $OpenBSD: tty-keys.c,v 1.89 2016/04/29 10:42:16 nicm Exp $ */ |
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/* |
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER |
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/types.h> |
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#include <sys/time.h> |
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#include <limits.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <termios.h> |
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#include <unistd.h> |
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#include "tmux.h" |
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/* |
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* Handle keys input from the outside terminal. tty_default_*_keys[] are a base |
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* table of supported keys which are looked up in terminfo(5) and translated |
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* into a ternary tree. |
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*/ |
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static void tty_keys_add1(struct tty_key **, const char *, key_code); |
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static void tty_keys_add(struct tty *, const char *, key_code); |
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static void tty_keys_free1(struct tty_key *); |
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static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t, |
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size_t *); |
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static struct tty_key *tty_keys_find(struct tty *, const char *, size_t, |
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size_t *); |
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static int tty_keys_next1(struct tty *, const char *, size_t, key_code *, |
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size_t *, int); |
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static void tty_keys_callback(int, short, void *); |
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static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *); |
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/* Default raw keys. */ |
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struct tty_default_key_raw { |
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const char *string; |
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key_code key; |
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}; |
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const struct tty_default_key_raw tty_default_raw_keys[] = { |
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/* |
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* Numeric keypad. Just use the vt100 escape sequences here and always |
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* put the terminal into keypad_xmit mode. Translation of numbers |
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* mode/applications mode is done in input-keys.c. |
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*/ |
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{ "\033Oo", KEYC_KP_SLASH }, |
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{ "\033Oj", KEYC_KP_STAR }, |
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{ "\033Om", KEYC_KP_MINUS }, |
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{ "\033Ow", KEYC_KP_SEVEN }, |
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{ "\033Ox", KEYC_KP_EIGHT }, |
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{ "\033Oy", KEYC_KP_NINE }, |
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{ "\033Ok", KEYC_KP_PLUS }, |
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{ "\033Ot", KEYC_KP_FOUR }, |
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{ "\033Ou", KEYC_KP_FIVE }, |
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{ "\033Ov", KEYC_KP_SIX }, |
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{ "\033Oq", KEYC_KP_ONE }, |
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{ "\033Or", KEYC_KP_TWO }, |
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{ "\033Os", KEYC_KP_THREE }, |
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{ "\033OM", KEYC_KP_ENTER }, |
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{ "\033Op", KEYC_KP_ZERO }, |
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{ "\033On", KEYC_KP_PERIOD }, |
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/* Arrow keys. */ |
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{ "\033OA", KEYC_UP }, |
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{ "\033OB", KEYC_DOWN }, |
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{ "\033OC", KEYC_RIGHT }, |
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{ "\033OD", KEYC_LEFT }, |
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{ "\033[A", KEYC_UP }, |
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{ "\033[B", KEYC_DOWN }, |
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{ "\033[C", KEYC_RIGHT }, |
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{ "\033[D", KEYC_LEFT }, |
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/* Other (xterm) "cursor" keys. */ |
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{ "\033OH", KEYC_HOME }, |
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{ "\033OF", KEYC_END }, |
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{ "\033[H", KEYC_HOME }, |
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{ "\033[F", KEYC_END }, |
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/* rxvt-style arrow + modifier keys. */ |
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{ "\033Oa", KEYC_UP|KEYC_CTRL }, |
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{ "\033Ob", KEYC_DOWN|KEYC_CTRL }, |
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{ "\033Oc", KEYC_RIGHT|KEYC_CTRL }, |
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{ "\033Od", KEYC_LEFT|KEYC_CTRL }, |
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{ "\033[a", KEYC_UP|KEYC_SHIFT }, |
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{ "\033[b", KEYC_DOWN|KEYC_SHIFT }, |
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{ "\033[c", KEYC_RIGHT|KEYC_SHIFT }, |
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{ "\033[d", KEYC_LEFT|KEYC_SHIFT }, |
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/* rxvt-style function + modifier keys (C = ^, S = $, C-S = @). */ |
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{ "\033[11^", KEYC_F1|KEYC_CTRL }, |
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{ "\033[12^", KEYC_F2|KEYC_CTRL }, |
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{ "\033[13^", KEYC_F3|KEYC_CTRL }, |
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{ "\033[14^", KEYC_F4|KEYC_CTRL }, |
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{ "\033[15^", KEYC_F5|KEYC_CTRL }, |
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{ "\033[17^", KEYC_F6|KEYC_CTRL }, |
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{ "\033[18^", KEYC_F7|KEYC_CTRL }, |
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{ "\033[19^", KEYC_F8|KEYC_CTRL }, |
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{ "\033[20^", KEYC_F9|KEYC_CTRL }, |
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{ "\033[21^", KEYC_F10|KEYC_CTRL }, |
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{ "\033[23^", KEYC_F11|KEYC_CTRL }, |
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{ "\033[24^", KEYC_F12|KEYC_CTRL }, |
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{ "\033[2^", KEYC_IC|KEYC_CTRL }, |
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{ "\033[3^", KEYC_DC|KEYC_CTRL }, |
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{ "\033[7^", KEYC_HOME|KEYC_CTRL }, |
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{ "\033[8^", KEYC_END|KEYC_CTRL }, |
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{ "\033[6^", KEYC_NPAGE|KEYC_CTRL }, |
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{ "\033[5^", KEYC_PPAGE|KEYC_CTRL }, |
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{ "\033[11$", KEYC_F1|KEYC_SHIFT }, |
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{ "\033[12$", KEYC_F2|KEYC_SHIFT }, |
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{ "\033[13$", KEYC_F3|KEYC_SHIFT }, |
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{ "\033[14$", KEYC_F4|KEYC_SHIFT }, |
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{ "\033[15$", KEYC_F5|KEYC_SHIFT }, |
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{ "\033[17$", KEYC_F6|KEYC_SHIFT }, |
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{ "\033[18$", KEYC_F7|KEYC_SHIFT }, |
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{ "\033[19$", KEYC_F8|KEYC_SHIFT }, |
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{ "\033[20$", KEYC_F9|KEYC_SHIFT }, |
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{ "\033[21$", KEYC_F10|KEYC_SHIFT }, |
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{ "\033[23$", KEYC_F11|KEYC_SHIFT }, |
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{ "\033[24$", KEYC_F12|KEYC_SHIFT }, |
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{ "\033[2$", KEYC_IC|KEYC_SHIFT }, |
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{ "\033[3$", KEYC_DC|KEYC_SHIFT }, |
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{ "\033[7$", KEYC_HOME|KEYC_SHIFT }, |
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{ "\033[8$", KEYC_END|KEYC_SHIFT }, |
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{ "\033[6$", KEYC_NPAGE|KEYC_SHIFT }, |
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{ "\033[5$", KEYC_PPAGE|KEYC_SHIFT }, |
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{ "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[2@", KEYC_IC|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[3@", KEYC_DC|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[7@", KEYC_HOME|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[8@", KEYC_END|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[6@", KEYC_NPAGE|KEYC_CTRL|KEYC_SHIFT }, |
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{ "\033[5@", KEYC_PPAGE|KEYC_CTRL|KEYC_SHIFT }, |
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/* Focus tracking. */ |
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{ "\033[I", KEYC_FOCUS_IN }, |
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{ "\033[O", KEYC_FOCUS_OUT }, |
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}; |
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/* Default terminfo(5) keys. */ |
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struct tty_default_key_code { |
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enum tty_code_code code; |
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key_code key; |
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}; |
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const struct tty_default_key_code tty_default_code_keys[] = { |
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/* Function keys. */ |
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{ TTYC_KF1, KEYC_F1 }, |
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{ TTYC_KF2, KEYC_F2 }, |
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{ TTYC_KF3, KEYC_F3 }, |
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{ TTYC_KF4, KEYC_F4 }, |
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{ TTYC_KF5, KEYC_F5 }, |
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{ TTYC_KF6, KEYC_F6 }, |
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{ TTYC_KF7, KEYC_F7 }, |
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{ TTYC_KF8, KEYC_F8 }, |
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{ TTYC_KF9, KEYC_F9 }, |
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{ TTYC_KF10, KEYC_F10 }, |
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{ TTYC_KF11, KEYC_F11 }, |
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{ TTYC_KF12, KEYC_F12 }, |
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{ TTYC_KF13, KEYC_F1|KEYC_SHIFT }, |
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{ TTYC_KF14, KEYC_F2|KEYC_SHIFT }, |
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{ TTYC_KF15, KEYC_F3|KEYC_SHIFT }, |
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{ TTYC_KF16, KEYC_F4|KEYC_SHIFT }, |
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{ TTYC_KF17, KEYC_F5|KEYC_SHIFT }, |
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{ TTYC_KF18, KEYC_F6|KEYC_SHIFT }, |
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{ TTYC_KF19, KEYC_F7|KEYC_SHIFT }, |
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{ TTYC_KF20, KEYC_F8|KEYC_SHIFT }, |
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{ TTYC_KF21, KEYC_F9|KEYC_SHIFT }, |
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{ TTYC_KF22, KEYC_F10|KEYC_SHIFT }, |
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{ TTYC_KF23, KEYC_F11|KEYC_SHIFT }, |
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{ TTYC_KF24, KEYC_F12|KEYC_SHIFT }, |
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{ TTYC_KF25, KEYC_F1|KEYC_CTRL }, |
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{ TTYC_KF26, KEYC_F2|KEYC_CTRL }, |
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{ TTYC_KF27, KEYC_F3|KEYC_CTRL }, |
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{ TTYC_KF28, KEYC_F4|KEYC_CTRL }, |
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{ TTYC_KF29, KEYC_F5|KEYC_CTRL }, |
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{ TTYC_KF30, KEYC_F6|KEYC_CTRL }, |
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{ TTYC_KF31, KEYC_F7|KEYC_CTRL }, |
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{ TTYC_KF32, KEYC_F8|KEYC_CTRL }, |
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{ TTYC_KF33, KEYC_F9|KEYC_CTRL }, |
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{ TTYC_KF34, KEYC_F10|KEYC_CTRL }, |
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{ TTYC_KF35, KEYC_F11|KEYC_CTRL }, |
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{ TTYC_KF36, KEYC_F12|KEYC_CTRL }, |
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{ TTYC_KF37, KEYC_F1|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF38, KEYC_F2|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF39, KEYC_F3|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF40, KEYC_F4|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF41, KEYC_F5|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF42, KEYC_F6|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF43, KEYC_F7|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF44, KEYC_F8|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF45, KEYC_F9|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF46, KEYC_F10|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF47, KEYC_F11|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF48, KEYC_F12|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KF49, KEYC_F1|KEYC_ESCAPE }, |
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{ TTYC_KF50, KEYC_F2|KEYC_ESCAPE }, |
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{ TTYC_KF51, KEYC_F3|KEYC_ESCAPE }, |
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{ TTYC_KF52, KEYC_F4|KEYC_ESCAPE }, |
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{ TTYC_KF53, KEYC_F5|KEYC_ESCAPE }, |
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{ TTYC_KF54, KEYC_F6|KEYC_ESCAPE }, |
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{ TTYC_KF55, KEYC_F7|KEYC_ESCAPE }, |
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{ TTYC_KF56, KEYC_F8|KEYC_ESCAPE }, |
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{ TTYC_KF57, KEYC_F9|KEYC_ESCAPE }, |
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{ TTYC_KF58, KEYC_F10|KEYC_ESCAPE }, |
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{ TTYC_KF59, KEYC_F11|KEYC_ESCAPE }, |
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{ TTYC_KF60, KEYC_F12|KEYC_ESCAPE }, |
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{ TTYC_KF61, KEYC_F1|KEYC_ESCAPE|KEYC_SHIFT }, |
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{ TTYC_KF62, KEYC_F2|KEYC_ESCAPE|KEYC_SHIFT }, |
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{ TTYC_KF63, KEYC_F3|KEYC_ESCAPE|KEYC_SHIFT }, |
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{ TTYC_KICH1, KEYC_IC }, |
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{ TTYC_KDCH1, KEYC_DC }, |
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{ TTYC_KHOME, KEYC_HOME }, |
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{ TTYC_KEND, KEYC_END }, |
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{ TTYC_KNP, KEYC_NPAGE }, |
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{ TTYC_KPP, KEYC_PPAGE }, |
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{ TTYC_KCBT, KEYC_BTAB }, |
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/* Arrow keys from terminfo. */ |
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{ TTYC_KCUU1, KEYC_UP }, |
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{ TTYC_KCUD1, KEYC_DOWN }, |
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{ TTYC_KCUB1, KEYC_LEFT }, |
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{ TTYC_KCUF1, KEYC_RIGHT }, |
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/* Key and modifier capabilities. */ |
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{ TTYC_KDC2, KEYC_DC|KEYC_SHIFT }, |
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{ TTYC_KDC3, KEYC_DC|KEYC_ESCAPE }, |
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{ TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_ESCAPE }, |
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{ TTYC_KDC5, KEYC_DC|KEYC_CTRL }, |
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{ TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KDC7, KEYC_DC|KEYC_ESCAPE|KEYC_CTRL }, |
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{ TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT }, |
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{ TTYC_KDN3, KEYC_DOWN|KEYC_ESCAPE }, |
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{ TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_ESCAPE }, |
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{ TTYC_KDN5, KEYC_DOWN|KEYC_CTRL }, |
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{ TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KDN7, KEYC_DOWN|KEYC_ESCAPE|KEYC_CTRL }, |
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{ TTYC_KEND2, KEYC_END|KEYC_SHIFT }, |
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{ TTYC_KEND3, KEYC_END|KEYC_ESCAPE }, |
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{ TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_ESCAPE }, |
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{ TTYC_KEND5, KEYC_END|KEYC_CTRL }, |
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{ TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KEND7, KEYC_END|KEYC_ESCAPE|KEYC_CTRL }, |
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{ TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT }, |
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{ TTYC_KHOM3, KEYC_HOME|KEYC_ESCAPE }, |
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{ TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_ESCAPE }, |
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{ TTYC_KHOM5, KEYC_HOME|KEYC_CTRL }, |
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{ TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KHOM7, KEYC_HOME|KEYC_ESCAPE|KEYC_CTRL }, |
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{ TTYC_KIC2, KEYC_IC|KEYC_SHIFT }, |
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{ TTYC_KIC3, KEYC_IC|KEYC_ESCAPE }, |
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{ TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_ESCAPE }, |
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{ TTYC_KIC5, KEYC_IC|KEYC_CTRL }, |
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{ TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL }, |
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{ TTYC_KIC7, KEYC_IC|KEYC_ESCAPE|KEYC_CTRL }, |
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|
|
{ TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT }, |
290 |
|
|
{ TTYC_KLFT3, KEYC_LEFT|KEYC_ESCAPE }, |
291 |
|
|
{ TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_ESCAPE }, |
292 |
|
|
{ TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL }, |
293 |
|
|
{ TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL }, |
294 |
|
|
{ TTYC_KLFT7, KEYC_LEFT|KEYC_ESCAPE|KEYC_CTRL }, |
295 |
|
|
{ TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT }, |
296 |
|
|
{ TTYC_KNXT3, KEYC_NPAGE|KEYC_ESCAPE }, |
297 |
|
|
{ TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_ESCAPE }, |
298 |
|
|
{ TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL }, |
299 |
|
|
{ TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL }, |
300 |
|
|
{ TTYC_KNXT7, KEYC_NPAGE|KEYC_ESCAPE|KEYC_CTRL }, |
301 |
|
|
{ TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT }, |
302 |
|
|
{ TTYC_KPRV3, KEYC_PPAGE|KEYC_ESCAPE }, |
303 |
|
|
{ TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_ESCAPE }, |
304 |
|
|
{ TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL }, |
305 |
|
|
{ TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL }, |
306 |
|
|
{ TTYC_KPRV7, KEYC_PPAGE|KEYC_ESCAPE|KEYC_CTRL }, |
307 |
|
|
{ TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT }, |
308 |
|
|
{ TTYC_KRIT3, KEYC_RIGHT|KEYC_ESCAPE }, |
309 |
|
|
{ TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_ESCAPE }, |
310 |
|
|
{ TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL }, |
311 |
|
|
{ TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL }, |
312 |
|
|
{ TTYC_KRIT7, KEYC_RIGHT|KEYC_ESCAPE|KEYC_CTRL }, |
313 |
|
|
{ TTYC_KUP2, KEYC_UP|KEYC_SHIFT }, |
314 |
|
|
{ TTYC_KUP3, KEYC_UP|KEYC_ESCAPE }, |
315 |
|
|
{ TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_ESCAPE }, |
316 |
|
|
{ TTYC_KUP5, KEYC_UP|KEYC_CTRL }, |
317 |
|
|
{ TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL }, |
318 |
|
|
{ TTYC_KUP7, KEYC_UP|KEYC_ESCAPE|KEYC_CTRL }, |
319 |
|
|
}; |
320 |
|
|
|
321 |
|
|
/* Add key to tree. */ |
322 |
|
|
static void |
323 |
|
|
tty_keys_add(struct tty *tty, const char *s, key_code key) |
324 |
|
|
{ |
325 |
|
|
struct tty_key *tk; |
326 |
|
|
size_t size; |
327 |
|
|
const char *keystr; |
328 |
|
|
|
329 |
|
|
keystr = key_string_lookup_key(key); |
330 |
|
|
if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) { |
331 |
|
|
log_debug("new key %s: 0x%llx (%s)", s, key, keystr); |
332 |
|
|
tty_keys_add1(&tty->key_tree, s, key); |
333 |
|
|
} else { |
334 |
|
|
log_debug("replacing key %s: 0x%llx (%s)", s, key, keystr); |
335 |
|
|
tk->key = key; |
336 |
|
|
} |
337 |
|
|
} |
338 |
|
|
|
339 |
|
|
/* Add next node to the tree. */ |
340 |
|
|
static void |
341 |
|
|
tty_keys_add1(struct tty_key **tkp, const char *s, key_code key) |
342 |
|
|
{ |
343 |
|
|
struct tty_key *tk; |
344 |
|
|
|
345 |
|
|
/* Allocate a tree entry if there isn't one already. */ |
346 |
|
|
tk = *tkp; |
347 |
|
|
if (tk == NULL) { |
348 |
|
|
tk = *tkp = xcalloc(1, sizeof *tk); |
349 |
|
|
tk->ch = *s; |
350 |
|
|
tk->key = KEYC_UNKNOWN; |
351 |
|
|
} |
352 |
|
|
|
353 |
|
|
/* Find the next entry. */ |
354 |
|
|
if (*s == tk->ch) { |
355 |
|
|
/* Move forward in string. */ |
356 |
|
|
s++; |
357 |
|
|
|
358 |
|
|
/* If this is the end of the string, no more is necessary. */ |
359 |
|
|
if (*s == '\0') { |
360 |
|
|
tk->key = key; |
361 |
|
|
return; |
362 |
|
|
} |
363 |
|
|
|
364 |
|
|
/* Use the child tree for the next character. */ |
365 |
|
|
tkp = &tk->next; |
366 |
|
|
} else { |
367 |
|
|
if (*s < tk->ch) |
368 |
|
|
tkp = &tk->left; |
369 |
|
|
else if (*s > tk->ch) |
370 |
|
|
tkp = &tk->right; |
371 |
|
|
} |
372 |
|
|
|
373 |
|
|
/* And recurse to add it. */ |
374 |
|
|
tty_keys_add1(tkp, s, key); |
375 |
|
|
} |
376 |
|
|
|
377 |
|
|
/* Initialise a key tree from the table. */ |
378 |
|
|
void |
379 |
|
|
tty_keys_build(struct tty *tty) |
380 |
|
|
{ |
381 |
|
|
const struct tty_default_key_raw *tdkr; |
382 |
|
|
const struct tty_default_key_code *tdkc; |
383 |
|
|
u_int i; |
384 |
|
|
const char *s; |
385 |
|
|
|
386 |
|
|
if (tty->key_tree != NULL) |
387 |
|
|
tty_keys_free(tty); |
388 |
|
|
tty->key_tree = NULL; |
389 |
|
|
|
390 |
|
|
for (i = 0; i < nitems(tty_default_raw_keys); i++) { |
391 |
|
|
tdkr = &tty_default_raw_keys[i]; |
392 |
|
|
|
393 |
|
|
s = tdkr->string; |
394 |
|
|
if (*s != '\0') |
395 |
|
|
tty_keys_add(tty, s, tdkr->key); |
396 |
|
|
} |
397 |
|
|
for (i = 0; i < nitems(tty_default_code_keys); i++) { |
398 |
|
|
tdkc = &tty_default_code_keys[i]; |
399 |
|
|
|
400 |
|
|
s = tty_term_string(tty->term, tdkc->code); |
401 |
|
|
if (*s != '\0') |
402 |
|
|
tty_keys_add(tty, s, tdkc->key); |
403 |
|
|
|
404 |
|
|
} |
405 |
|
|
} |
406 |
|
|
|
407 |
|
|
/* Free the entire key tree. */ |
408 |
|
|
void |
409 |
|
|
tty_keys_free(struct tty *tty) |
410 |
|
|
{ |
411 |
|
|
tty_keys_free1(tty->key_tree); |
412 |
|
|
} |
413 |
|
|
|
414 |
|
|
/* Free a single key. */ |
415 |
|
|
static void |
416 |
|
|
tty_keys_free1(struct tty_key *tk) |
417 |
|
|
{ |
418 |
|
|
if (tk->next != NULL) |
419 |
|
|
tty_keys_free1(tk->next); |
420 |
|
|
if (tk->left != NULL) |
421 |
|
|
tty_keys_free1(tk->left); |
422 |
|
|
if (tk->right != NULL) |
423 |
|
|
tty_keys_free1(tk->right); |
424 |
|
|
free(tk); |
425 |
|
|
} |
426 |
|
|
|
427 |
|
|
/* Lookup a key in the tree. */ |
428 |
|
|
static struct tty_key * |
429 |
|
|
tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size) |
430 |
|
|
{ |
431 |
|
|
*size = 0; |
432 |
|
|
return (tty_keys_find1(tty->key_tree, buf, len, size)); |
433 |
|
|
} |
434 |
|
|
|
435 |
|
|
/* Find the next node. */ |
436 |
|
|
static struct tty_key * |
437 |
|
|
tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size) |
438 |
|
|
{ |
439 |
|
|
/* If the node is NULL, this is the end of the tree. No match. */ |
440 |
|
|
if (tk == NULL) |
441 |
|
|
return (NULL); |
442 |
|
|
|
443 |
|
|
/* Pick the next in the sequence. */ |
444 |
|
|
if (tk->ch == *buf) { |
445 |
|
|
/* Move forward in the string. */ |
446 |
|
|
buf++; len--; |
447 |
|
|
(*size)++; |
448 |
|
|
|
449 |
|
|
/* At the end of the string, return the current node. */ |
450 |
|
|
if (len == 0 || (tk->next == NULL && tk->key != KEYC_UNKNOWN)) |
451 |
|
|
return (tk); |
452 |
|
|
|
453 |
|
|
/* Move into the next tree for the following character. */ |
454 |
|
|
tk = tk->next; |
455 |
|
|
} else { |
456 |
|
|
if (*buf < tk->ch) |
457 |
|
|
tk = tk->left; |
458 |
|
|
else if (*buf > tk->ch) |
459 |
|
|
tk = tk->right; |
460 |
|
|
} |
461 |
|
|
|
462 |
|
|
/* Move to the next in the tree. */ |
463 |
|
|
return (tty_keys_find1(tk, buf, len, size)); |
464 |
|
|
} |
465 |
|
|
|
466 |
|
|
/* Look up part of the next key. */ |
467 |
|
|
static int |
468 |
|
|
tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key, |
469 |
|
|
size_t *size, int expired) |
470 |
|
|
{ |
471 |
|
|
struct tty_key *tk, *tk1; |
472 |
|
|
struct utf8_data ud; |
473 |
|
|
enum utf8_state more; |
474 |
|
|
u_int i; |
475 |
|
|
wchar_t wc; |
476 |
|
|
|
477 |
|
|
log_debug("next key is %zu (%.*s) (expired=%d)", len, (int)len, buf, |
478 |
|
|
expired); |
479 |
|
|
|
480 |
|
|
/* Is this a known key? */ |
481 |
|
|
tk = tty_keys_find(tty, buf, len, size); |
482 |
|
|
if (tk != NULL && tk->key != KEYC_UNKNOWN) { |
483 |
|
|
tk1 = tk; |
484 |
|
|
do |
485 |
|
|
log_debug("keys in list: %#llx", tk1->key); |
486 |
|
|
while ((tk1 = tk1->next) != NULL); |
487 |
|
|
if (tk->next != NULL && !expired) |
488 |
|
|
return (1); |
489 |
|
|
*key = tk->key; |
490 |
|
|
return (0); |
491 |
|
|
} |
492 |
|
|
|
493 |
|
|
/* Is this valid UTF-8? */ |
494 |
|
|
more = utf8_open(&ud, (u_char)*buf); |
495 |
|
|
if (more == UTF8_MORE) { |
496 |
|
|
*size = ud.size; |
497 |
|
|
if (len < ud.size) { |
498 |
|
|
if (!expired) |
499 |
|
|
return (1); |
500 |
|
|
return (-1); |
501 |
|
|
} |
502 |
|
|
for (i = 1; i < ud.size; i++) |
503 |
|
|
more = utf8_append(&ud, (u_char)buf[i]); |
504 |
|
|
if (more != UTF8_DONE) |
505 |
|
|
return (-1); |
506 |
|
|
|
507 |
|
|
if (utf8_combine(&ud, &wc) != UTF8_DONE) |
508 |
|
|
return (-1); |
509 |
|
|
*key = wc; |
510 |
|
|
|
511 |
|
|
log_debug("UTF-8 key %.*s %#llx", (int)ud.size, buf, *key); |
512 |
|
|
return (0); |
513 |
|
|
} |
514 |
|
|
|
515 |
|
|
return (-1); |
516 |
|
|
} |
517 |
|
|
|
518 |
|
|
/* |
519 |
|
|
* Process at least one key in the buffer and invoke tty->key_callback. Return |
520 |
|
|
* 0 if there are no further keys, or 1 if there could be more in the buffer. |
521 |
|
|
*/ |
522 |
|
|
key_code |
523 |
|
|
tty_keys_next(struct tty *tty) |
524 |
|
|
{ |
525 |
|
|
struct timeval tv; |
526 |
|
|
const char *buf; |
527 |
|
|
size_t len, size; |
528 |
|
|
cc_t bspace; |
529 |
|
|
int delay, expired = 0, n; |
530 |
|
|
key_code key; |
531 |
|
|
|
532 |
|
|
/* Get key buffer. */ |
533 |
|
|
buf = EVBUFFER_DATA(tty->event->input); |
534 |
|
|
len = EVBUFFER_LENGTH(tty->event->input); |
535 |
|
|
|
536 |
|
|
if (len == 0) |
537 |
|
|
return (0); |
538 |
|
|
log_debug("keys are %zu (%.*s)", len, (int)len, buf); |
539 |
|
|
|
540 |
|
|
/* Is this a mouse key press? */ |
541 |
|
|
switch (tty_keys_mouse(tty, buf, len, &size)) { |
542 |
|
|
case 0: /* yes */ |
543 |
|
|
key = KEYC_MOUSE; |
544 |
|
|
goto complete_key; |
545 |
|
|
case -1: /* no, or not valid */ |
546 |
|
|
break; |
547 |
|
|
case -2: /* yes, but we don't care. */ |
548 |
|
|
key = KEYC_MOUSE; |
549 |
|
|
goto discard_key; |
550 |
|
|
case 1: /* partial */ |
551 |
|
|
goto partial_key; |
552 |
|
|
} |
553 |
|
|
|
554 |
|
|
first_key: |
555 |
|
|
/* Handle keys starting with escape. */ |
556 |
|
|
if (*buf == '\033') { |
557 |
|
|
/* Look for a key without the escape. */ |
558 |
|
|
n = tty_keys_next1(tty, buf + 1, len - 1, &key, &size, expired); |
559 |
|
|
if (n == 0) { /* found */ |
560 |
|
|
key |= KEYC_ESCAPE; |
561 |
|
|
size++; |
562 |
|
|
goto complete_key; |
563 |
|
|
} |
564 |
|
|
if (n == 1) /* partial */ |
565 |
|
|
goto partial_key; |
566 |
|
|
} |
567 |
|
|
|
568 |
|
|
/* Try to lookup key. */ |
569 |
|
|
n = tty_keys_next1(tty, buf, len, &key, &size, expired); |
570 |
|
|
if (n == 0) /* found */ |
571 |
|
|
goto complete_key; |
572 |
|
|
if (n == 1) |
573 |
|
|
goto partial_key; |
574 |
|
|
|
575 |
|
|
/* Is this an an xterm(1) key? */ |
576 |
|
|
n = xterm_keys_find(buf, len, &size, &key); |
577 |
|
|
if (n == 0) |
578 |
|
|
goto complete_key; |
579 |
|
|
if (n == 1 && !expired) |
580 |
|
|
goto partial_key; |
581 |
|
|
|
582 |
|
|
/* |
583 |
|
|
* At this point, we know the key is not partial (with or without |
584 |
|
|
* escape). So pass it through even if the timer has not expired. |
585 |
|
|
*/ |
586 |
|
|
if (*buf == '\033' && len >= 2) { |
587 |
|
|
key = (u_char)buf[1] | KEYC_ESCAPE; |
588 |
|
|
size = 2; |
589 |
|
|
} else { |
590 |
|
|
key = (u_char)buf[0]; |
591 |
|
|
size = 1; |
592 |
|
|
} |
593 |
|
|
goto complete_key; |
594 |
|
|
|
595 |
|
|
partial_key: |
596 |
|
|
log_debug("partial key %.*s", (int)len, buf); |
597 |
|
|
|
598 |
|
|
/* If timer is going, check for expiration. */ |
599 |
|
|
if (tty->flags & TTY_TIMER) { |
600 |
|
|
if (evtimer_initialized(&tty->key_timer) && |
601 |
|
|
!evtimer_pending(&tty->key_timer, NULL)) { |
602 |
|
|
expired = 1; |
603 |
|
|
goto first_key; |
604 |
|
|
} |
605 |
|
|
return (0); |
606 |
|
|
} |
607 |
|
|
|
608 |
|
|
/* Get the time period. */ |
609 |
|
|
delay = options_get_number(global_options, "escape-time"); |
610 |
|
|
tv.tv_sec = delay / 1000; |
611 |
|
|
tv.tv_usec = (delay % 1000) * 1000L; |
612 |
|
|
|
613 |
|
|
/* Start the timer. */ |
614 |
|
|
if (event_initialized(&tty->key_timer)) |
615 |
|
|
evtimer_del(&tty->key_timer); |
616 |
|
|
evtimer_set(&tty->key_timer, tty_keys_callback, tty); |
617 |
|
|
evtimer_add(&tty->key_timer, &tv); |
618 |
|
|
|
619 |
|
|
tty->flags |= TTY_TIMER; |
620 |
|
|
return (0); |
621 |
|
|
|
622 |
|
|
complete_key: |
623 |
|
|
log_debug("complete key %.*s %#llx", (int)size, buf, key); |
624 |
|
|
|
625 |
|
|
/* |
626 |
|
|
* Check for backspace key using termios VERASE - the terminfo |
627 |
|
|
* kbs entry is extremely unreliable, so cannot be safely |
628 |
|
|
* used. termios should have a better idea. |
629 |
|
|
*/ |
630 |
|
|
bspace = tty->tio.c_cc[VERASE]; |
631 |
|
|
if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace) |
632 |
|
|
key = (key & KEYC_MASK_MOD) | KEYC_BSPACE; |
633 |
|
|
|
634 |
|
|
/* Remove data from buffer. */ |
635 |
|
|
evbuffer_drain(tty->event->input, size); |
636 |
|
|
|
637 |
|
|
/* Remove key timer. */ |
638 |
|
|
if (event_initialized(&tty->key_timer)) |
639 |
|
|
evtimer_del(&tty->key_timer); |
640 |
|
|
tty->flags &= ~TTY_TIMER; |
641 |
|
|
|
642 |
|
|
/* Check for focus events. */ |
643 |
|
|
if (key == KEYC_FOCUS_OUT) { |
644 |
|
|
tty->client->flags &= ~CLIENT_FOCUSED; |
645 |
|
|
return (1); |
646 |
|
|
} else if (key == KEYC_FOCUS_IN) { |
647 |
|
|
tty->client->flags |= CLIENT_FOCUSED; |
648 |
|
|
return (1); |
649 |
|
|
} |
650 |
|
|
|
651 |
|
|
/* Fire the key. */ |
652 |
|
|
if (key != KEYC_UNKNOWN) |
653 |
|
|
server_client_handle_key(tty->client, key); |
654 |
|
|
|
655 |
|
|
return (1); |
656 |
|
|
|
657 |
|
|
discard_key: |
658 |
|
|
log_debug("discard key %.*s %#llx", (int)size, buf, key); |
659 |
|
|
|
660 |
|
|
/* Remove data from buffer. */ |
661 |
|
|
evbuffer_drain(tty->event->input, size); |
662 |
|
|
|
663 |
|
|
return (1); |
664 |
|
|
} |
665 |
|
|
|
666 |
|
|
/* Key timer callback. */ |
667 |
|
|
static void |
668 |
|
|
tty_keys_callback(__unused int fd, __unused short events, void *data) |
669 |
|
|
{ |
670 |
|
|
struct tty *tty = data; |
671 |
|
|
|
672 |
|
|
if (tty->flags & TTY_TIMER) { |
673 |
|
|
while (tty_keys_next(tty)) |
674 |
|
|
; |
675 |
|
|
} |
676 |
|
|
} |
677 |
|
|
|
678 |
|
|
/* |
679 |
|
|
* Handle mouse key input. Returns 0 for success, -1 for failure, 1 for partial |
680 |
|
|
* (probably a mouse sequence but need more data). |
681 |
|
|
*/ |
682 |
|
|
static int |
683 |
|
|
tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size) |
684 |
|
|
{ |
685 |
|
|
struct mouse_event *m = &tty->mouse; |
686 |
|
|
u_int i, x, y, b, sgr_b; |
687 |
|
|
u_char sgr_type, c; |
688 |
|
|
|
689 |
|
|
/* |
690 |
|
|
* Standard mouse sequences are \033[M followed by three characters |
691 |
|
|
* indicating button, X and Y, all based at 32 with 1,1 top-left. |
692 |
|
|
* |
693 |
|
|
* UTF-8 mouse sequences are similar but the three are expressed as |
694 |
|
|
* UTF-8 characters. |
695 |
|
|
* |
696 |
|
|
* SGR extended mouse sequences are \033[< followed by three numbers in |
697 |
|
|
* decimal and separated by semicolons indicating button, X and Y. A |
698 |
|
|
* trailing 'M' is click or scroll and trailing 'm' release. All are |
699 |
|
|
* based at 0 with 1,1 top-left. |
700 |
|
|
*/ |
701 |
|
|
|
702 |
|
|
*size = 0; |
703 |
|
|
x = y = b = sgr_b = 0; |
704 |
|
|
sgr_type = ' '; |
705 |
|
|
|
706 |
|
|
/* First two bytes are always \033[. */ |
707 |
|
|
if (buf[0] != '\033') |
708 |
|
|
return (-1); |
709 |
|
|
if (len == 1) |
710 |
|
|
return (1); |
711 |
|
|
if (buf[1] != '[') |
712 |
|
|
return (-1); |
713 |
|
|
if (len == 2) |
714 |
|
|
return (1); |
715 |
|
|
|
716 |
|
|
/* |
717 |
|
|
* Third byte is M in old standard (and UTF-8 extension which we do not |
718 |
|
|
* support), < in SGR extension. |
719 |
|
|
*/ |
720 |
|
|
if (buf[2] == 'M') { |
721 |
|
|
/* Read the three inputs. */ |
722 |
|
|
*size = 3; |
723 |
|
|
for (i = 0; i < 3; i++) { |
724 |
|
|
if (len <= *size) |
725 |
|
|
return (1); |
726 |
|
|
c = (u_char)buf[(*size)++]; |
727 |
|
|
if (i == 0) |
728 |
|
|
b = c; |
729 |
|
|
else if (i == 1) |
730 |
|
|
x = c; |
731 |
|
|
else |
732 |
|
|
y = c; |
733 |
|
|
} |
734 |
|
|
log_debug("mouse input: %.*s", (int)*size, buf); |
735 |
|
|
|
736 |
|
|
/* Check and return the mouse input. */ |
737 |
|
|
if (b < 32) |
738 |
|
|
return (-1); |
739 |
|
|
b -= 32; |
740 |
|
|
if (x >= 33) |
741 |
|
|
x -= 33; |
742 |
|
|
else |
743 |
|
|
x = 256 - x; |
744 |
|
|
if (y >= 33) |
745 |
|
|
y -= 33; |
746 |
|
|
else |
747 |
|
|
y = 256 - y; |
748 |
|
|
} else if (buf[2] == '<') { |
749 |
|
|
/* Read the three inputs. */ |
750 |
|
|
*size = 3; |
751 |
|
|
while (1) { |
752 |
|
|
if (len <= *size) |
753 |
|
|
return (1); |
754 |
|
|
c = (u_char)buf[(*size)++]; |
755 |
|
|
if (c == ';') |
756 |
|
|
break; |
757 |
|
|
if (c < '0' || c > '9') |
758 |
|
|
return (-1); |
759 |
|
|
sgr_b = 10 * sgr_b + (c - '0'); |
760 |
|
|
} |
761 |
|
|
while (1) { |
762 |
|
|
if (len <= *size) |
763 |
|
|
return (1); |
764 |
|
|
c = (u_char)buf[(*size)++]; |
765 |
|
|
if (c == ';') |
766 |
|
|
break; |
767 |
|
|
if (c < '0' || c > '9') |
768 |
|
|
return (-1); |
769 |
|
|
x = 10 * x + (c - '0'); |
770 |
|
|
} |
771 |
|
|
while (1) { |
772 |
|
|
if (len <= *size) |
773 |
|
|
return (1); |
774 |
|
|
c = (u_char)buf[(*size)++]; |
775 |
|
|
if (c == 'M' || c == 'm') |
776 |
|
|
break; |
777 |
|
|
if (c < '0' || c > '9') |
778 |
|
|
return (-1); |
779 |
|
|
y = 10 * y + (c - '0'); |
780 |
|
|
} |
781 |
|
|
log_debug("mouse input (SGR): %.*s", (int)*size, buf); |
782 |
|
|
|
783 |
|
|
/* Check and return the mouse input. */ |
784 |
|
|
if (x < 1 || y < 1) |
785 |
|
|
return (-1); |
786 |
|
|
x--; |
787 |
|
|
y--; |
788 |
|
|
b = sgr_b; |
789 |
|
|
|
790 |
|
|
/* Type is M for press, m for release. */ |
791 |
|
|
sgr_type = c; |
792 |
|
|
if (sgr_type == 'm') |
793 |
|
|
b |= 3; |
794 |
|
|
|
795 |
|
|
/* |
796 |
|
|
* Some terminals (like PuTTY 0.63) mistakenly send |
797 |
|
|
* button-release events for scroll-wheel button-press event. |
798 |
|
|
* Discard it before it reaches any program running inside |
799 |
|
|
* tmux. |
800 |
|
|
*/ |
801 |
|
|
if (sgr_type == 'm' && (sgr_b & 64)) |
802 |
|
|
return (-2); |
803 |
|
|
} else |
804 |
|
|
return (-1); |
805 |
|
|
|
806 |
|
|
/* Fill mouse event. */ |
807 |
|
|
m->lx = m->x; |
808 |
|
|
m->x = x; |
809 |
|
|
m->ly = m->y; |
810 |
|
|
m->y = y; |
811 |
|
|
m->lb = m->b; |
812 |
|
|
m->b = b; |
813 |
|
|
m->sgr_type = sgr_type; |
814 |
|
|
m->sgr_b = sgr_b; |
815 |
|
|
|
816 |
|
|
return (0); |
817 |
|
|
} |