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tmux/input-keys.c
Tiago Cunha 361801aaaa Sync OpenBSD patchset 184: 
Detect backspace by looking at termios VERASE and translate it into \177
(which matches screen's behaviour if not its termcap/terminfo entry). The
terminfo kbs cap is often wrong or missing so it can't be used, and just
assuming \177 may be wrong.
2009-07-28 22:37:02 +00:00

231 lines
7.4 KiB
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/* $Id: input-keys.c,v 1.29 2009-07-28 22:37:02 tcunha Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
struct input_key_ent {
int key;
const char *data;
int flags;
#define INPUTKEY_KEYPAD 0x1 /* keypad key */
#define INPUTKEY_CURSOR 0x2 /* cursor key */
#define INPUTKEY_CTRL 0x4 /* may be modified with ctrl */
#define INPUTKEY_XTERM 0x4 /* may have xterm argument appended */
};
struct input_key_ent input_keys[] = {
/* Backspace key. */
{ KEYC_BSPACE, "\177", 0 },
/* Function keys. */
{ KEYC_F1, "\033OP", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F2, "\033OQ", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F3, "\033OR", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F4, "\033OS", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F5, "\033[15~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F6, "\033[17~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F7, "\033[18~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F8, "\033[19~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F9, "\033[20~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F10, "\033[21~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F11, "\033[23~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F12, "\033[24~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F13, "\033[25~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F14, "\033[26~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F15, "\033[28~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F16, "\033[29~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F17, "\033[31~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F18, "\033[32~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F19, "\033[33~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_F20, "\033[34~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_IC, "\033[2~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_DC, "\033[3~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_HOME, "\033[1~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_END, "\033[4~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_NPAGE, "\033[6~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_PPAGE, "\033[5~", INPUTKEY_CTRL|INPUTKEY_XTERM },
{ KEYC_BTAB, "\033[Z", INPUTKEY_CTRL },
/* Arrow keys. Cursor versions must come first. */
{ KEYC_UP | KEYC_CTRL, "\033Oa", 0 },
{ KEYC_DOWN | KEYC_CTRL, "\033Ob", 0 },
{ KEYC_RIGHT | KEYC_CTRL, "\033Oc", 0 },
{ KEYC_LEFT | KEYC_CTRL, "\033Od", 0 },
{ KEYC_UP | KEYC_SHIFT, "\033[a", 0 },
{ KEYC_DOWN | KEYC_SHIFT, "\033[b", 0 },
{ KEYC_RIGHT | KEYC_SHIFT, "\033[c", 0 },
{ KEYC_LEFT | KEYC_SHIFT, "\033[d", 0 },
{ KEYC_UP, "\033OA", INPUTKEY_CURSOR },
{ KEYC_DOWN, "\033OB", INPUTKEY_CURSOR },
{ KEYC_RIGHT, "\033OC", INPUTKEY_CURSOR },
{ KEYC_LEFT, "\033OD", INPUTKEY_CURSOR },
{ KEYC_UP, "\033[A", 0 },
{ KEYC_DOWN, "\033[B", 0 },
{ KEYC_RIGHT, "\033[C", 0 },
{ KEYC_LEFT, "\033[D", 0 },
/* Keypad keys. Keypad versions must come first. */
{ KEYC_KP0_1, "/", INPUTKEY_KEYPAD },
{ KEYC_KP0_2, "*", INPUTKEY_KEYPAD },
{ KEYC_KP0_3, "-", INPUTKEY_KEYPAD },
{ KEYC_KP1_0, "7", INPUTKEY_KEYPAD },
{ KEYC_KP1_1, "8", INPUTKEY_KEYPAD },
{ KEYC_KP1_2, "9", INPUTKEY_KEYPAD },
{ KEYC_KP1_3, "+", INPUTKEY_KEYPAD },
{ KEYC_KP2_0, "4", INPUTKEY_KEYPAD },
{ KEYC_KP2_1, "5", INPUTKEY_KEYPAD },
{ KEYC_KP2_2, "6", INPUTKEY_KEYPAD },
{ KEYC_KP3_0, "1", INPUTKEY_KEYPAD },
{ KEYC_KP3_1, "2", INPUTKEY_KEYPAD },
{ KEYC_KP3_2, "3", INPUTKEY_KEYPAD },
{ KEYC_KP3_3, "\n", INPUTKEY_KEYPAD }, /* this can be CRLF too? */
{ KEYC_KP4_0, "0", INPUTKEY_KEYPAD },
{ KEYC_KP4_2, ".", INPUTKEY_KEYPAD },
{ KEYC_KP0_1, "\033Oo", 0 },
{ KEYC_KP0_2, "\033Oj", 0 },
{ KEYC_KP0_3, "\033Om", 0 },
{ KEYC_KP1_0, "\033Ow", 0 },
{ KEYC_KP1_1, "\033Ox", 0 },
{ KEYC_KP1_2, "\033Oy", 0 },
{ KEYC_KP1_3, "\033Ok", 0 },
{ KEYC_KP2_0, "\033Ot", 0 },
{ KEYC_KP2_1, "\033Ou", 0 },
{ KEYC_KP2_2, "\033Ov", 0 },
{ KEYC_KP3_0, "\033Oq", 0 },
{ KEYC_KP3_1, "\033Or", 0 },
{ KEYC_KP3_2, "\033Os", 0 },
{ KEYC_KP3_3, "\033OM", 0 },
{ KEYC_KP4_0, "\033Op", 0 },
{ KEYC_KP4_2, "\033On", 0 },
};
/* Translate a key code from client into an output key sequence. */
void
input_key(struct window_pane *wp, int key)
{
struct input_key_ent *ike;
u_int i;
char ch;
size_t dlen;
int xterm_keys;
log_debug2("writing key 0x%x", key);
if (key != KEYC_NONE && (key & ~KEYC_ESCAPE) < 0x100) {
if (key & KEYC_ESCAPE)
buffer_write8(wp->out, '\033');
buffer_write8(wp->out, (uint8_t) (key & ~KEYC_ESCAPE));
return;
}
for (i = 0; i < nitems(input_keys); i++) {
ike = &input_keys[i];
if ((ike->flags & INPUTKEY_KEYPAD) &&
!(wp->screen->mode & MODE_KKEYPAD))
continue;
if ((ike->flags & INPUTKEY_CURSOR) &&
!(wp->screen->mode & MODE_KCURSOR))
continue;
if ((key & KEYC_ESCAPE) && (ike->key | KEYC_ESCAPE) == key)
break;
if ((key & KEYC_SHIFT) && (ike->key | KEYC_SHIFT) == key)
break;
if ((key & KEYC_CTRL) && (ike->key | KEYC_CTRL) == key) {
if (ike->flags & INPUTKEY_CTRL)
break;
}
if (ike->key == key)
break;
}
if (i == nitems(input_keys)) {
log_debug2("key 0x%x missing", key);
return;
}
dlen = strlen(ike->data);
log_debug2("found key 0x%x: \"%s\"", key, ike->data);
/*
* If in xterm keys mode, work out and append the modifier as an
* argument.
*/
xterm_keys = options_get_number(&wp->window->options, "xterm-keys");
if (xterm_keys && ike->flags & INPUTKEY_XTERM) {
ch = '\0';
if (key & (KEYC_SHIFT|KEYC_ESCAPE|KEYC_CTRL))
ch = '8';
else if (key & (KEYC_ESCAPE|KEYC_CTRL))
ch = '7';
else if (key & (KEYC_SHIFT|KEYC_CTRL))
ch = '6';
else if (key & KEYC_CTRL)
ch = '5';
else if (key & (KEYC_SHIFT|KEYC_ESCAPE))
ch = '4';
else if (key & KEYC_ESCAPE)
ch = '3';
else if (key & KEYC_SHIFT)
ch = '2';
if (ch != '\0') {
buffer_write(wp->out, ike->data, dlen - 1);
buffer_write8(wp->out, ';');
buffer_write8(wp->out, ch);
buffer_write8(wp->out, ike->data[dlen - 1]);
} else
buffer_write(wp->out, ike->data, dlen);
return;
}
/*
* Not in xterm mode. Prefix a \033 for escape, and set bit 5 of the
* last byte for ctrl.
*/
if (key & KEYC_ESCAPE)
buffer_write8(wp->out, '\033');
if (key & KEYC_CTRL && ike->flags & INPUTKEY_CTRL) {
buffer_write(wp->out, ike->data, dlen - 1);
buffer_write8(wp->out, ike->data[dlen - 1] ^ 0x20);
return;
}
buffer_write(wp->out, ike->data, dlen);
}
/* Handle input mouse. */
void
input_mouse(struct window_pane *wp, u_char b, u_char x, u_char y)
{
if (wp->screen->mode & MODE_MOUSE) {
buffer_write(wp->out, "\033[M", 3);
buffer_write8(wp->out, b + 32);
buffer_write8(wp->out, x + 33);
buffer_write8(wp->out, y + 33);
}
}
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