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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/tmux/input-keys.c	Lines:	0	91	0.0 %
Date:	2017-11-13	Branches:	0	82	0.0 %


/* $OpenBSD: input-keys.c,v 1.62 2017/06/28 11:36:39 nicm Exp $ */

/*
 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * 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"

/*
 * This file is rather misleadingly named, it contains the code which takes a
 * key code and translates it into something suitable to be sent to the
 * application running in a pane (similar to input.c does in the other
 * direction with output).
 */

static void	 input_key_mouse(struct window_pane *, struct mouse_event *);

struct input_key_ent {
	key_code	 key;
	const char	*data;

	int		 flags;
#define INPUTKEY_KEYPAD 0x1	/* keypad key */
#define INPUTKEY_CURSOR 0x2	/* cursor key */
};

static const struct input_key_ent input_keys[] = {
	/* Backspace key. */
	{ KEYC_BSPACE,		"\177",		0 },

	/* Paste keys. */
	{ KEYC_PASTE_START,	"\033[200~",	0 },
	{ KEYC_PASTE_END,	"\033[201~",	0 },

	/* Function keys. */
	{ KEYC_F1,		"\033OP",	0 },
	{ KEYC_F2,		"\033OQ",	0 },
	{ KEYC_F3,		"\033OR",	0 },
	{ KEYC_F4,		"\033OS",	0 },
	{ KEYC_F5,		"\033[15~",	0 },
	{ KEYC_F6,		"\033[17~",	0 },
	{ KEYC_F7,		"\033[18~",	0 },
	{ KEYC_F8,		"\033[19~",	0 },
	{ KEYC_F9,		"\033[20~",	0 },
	{ KEYC_F10,		"\033[21~",	0 },
	{ KEYC_F11,		"\033[23~",	0 },
	{ KEYC_F12,		"\033[24~",	0 },
	{ KEYC_F1|KEYC_SHIFT,	"\033[25~",	0 },
	{ KEYC_F2|KEYC_SHIFT,	"\033[26~",	0 },
	{ KEYC_F3|KEYC_SHIFT,	"\033[28~",	0 },
	{ KEYC_F4|KEYC_SHIFT,	"\033[29~",	0 },
	{ KEYC_F5|KEYC_SHIFT,	"\033[31~",	0 },
	{ KEYC_F6|KEYC_SHIFT,	"\033[32~",	0 },
	{ KEYC_F7|KEYC_SHIFT,	"\033[33~",	0 },
	{ KEYC_F8|KEYC_SHIFT,	"\033[34~",	0 },
	{ KEYC_IC,		"\033[2~",	0 },
	{ KEYC_DC,		"\033[3~",	0 },
	{ KEYC_HOME,		"\033[1~",	0 },
	{ KEYC_END,		"\033[4~",	0 },
	{ KEYC_NPAGE,		"\033[6~",	0 },
	{ KEYC_PPAGE,		"\033[5~",	0 },
	{ KEYC_BTAB,		"\033[Z",	0 },

	/*
	 * Arrow keys. Cursor versions must come first. The codes are toggled
	 * between CSI and SS3 versions when ctrl is pressed.
	 */
	{ KEYC_UP|KEYC_CTRL,	"\033[A",	INPUTKEY_CURSOR },
	{ KEYC_DOWN|KEYC_CTRL,	"\033[B",	INPUTKEY_CURSOR },
	{ KEYC_RIGHT|KEYC_CTRL,	"\033[C",	INPUTKEY_CURSOR },
	{ KEYC_LEFT|KEYC_CTRL,	"\033[D",	INPUTKEY_CURSOR },

	{ KEYC_UP,		"\033OA",	INPUTKEY_CURSOR },
	{ KEYC_DOWN,		"\033OB",	INPUTKEY_CURSOR },
	{ KEYC_RIGHT,		"\033OC",	INPUTKEY_CURSOR },
	{ KEYC_LEFT,		"\033OD",	INPUTKEY_CURSOR },

	{ 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,		"\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_KP_SLASH,	"\033Oo",	INPUTKEY_KEYPAD },
	{ KEYC_KP_STAR,		"\033Oj",	INPUTKEY_KEYPAD },
	{ KEYC_KP_MINUS,	"\033Om",	INPUTKEY_KEYPAD },
	{ KEYC_KP_SEVEN,	"\033Ow",	INPUTKEY_KEYPAD },
	{ KEYC_KP_EIGHT,	"\033Ox",	INPUTKEY_KEYPAD },
	{ KEYC_KP_NINE,		"\033Oy",	INPUTKEY_KEYPAD },
	{ KEYC_KP_PLUS,		"\033Ok",	INPUTKEY_KEYPAD },
	{ KEYC_KP_FOUR,		"\033Ot",	INPUTKEY_KEYPAD },
	{ KEYC_KP_FIVE,		"\033Ou",	INPUTKEY_KEYPAD },
	{ KEYC_KP_SIX,		"\033Ov",	INPUTKEY_KEYPAD },
	{ KEYC_KP_ONE,		"\033Oq",	INPUTKEY_KEYPAD },
	{ KEYC_KP_TWO,		"\033Or",	INPUTKEY_KEYPAD },
	{ KEYC_KP_THREE,	"\033Os",	INPUTKEY_KEYPAD },
	{ KEYC_KP_ENTER,	"\033OM",	INPUTKEY_KEYPAD },
	{ KEYC_KP_ZERO,		"\033Op",	INPUTKEY_KEYPAD },
	{ KEYC_KP_PERIOD,	"\033On",	INPUTKEY_KEYPAD },

	{ KEYC_KP_SLASH,	"/",		0 },
	{ KEYC_KP_STAR,		"*",		0 },
	{ KEYC_KP_MINUS,	"-",		0 },
	{ KEYC_KP_SEVEN,	"7",		0 },
	{ KEYC_KP_EIGHT,	"8",		0 },
	{ KEYC_KP_NINE,		"9",		0 },
	{ KEYC_KP_PLUS,		"+",		0 },
	{ KEYC_KP_FOUR,		"4",		0 },
	{ KEYC_KP_FIVE,		"5",		0 },
	{ KEYC_KP_SIX,		"6",		0 },
	{ KEYC_KP_ONE,		"1",		0 },
	{ KEYC_KP_TWO,		"2",		0 },
	{ KEYC_KP_THREE,	"3",		0 },
	{ KEYC_KP_ENTER,	"\n",		0 },
	{ KEYC_KP_ZERO,		"0",		0 },
	{ KEYC_KP_PERIOD,	".",		0 },
};

/* Split a character into two UTF-8 bytes. */
static size_t
input_split2(u_int c, u_char *dst)
{
	if (c > 0x7f) {
		dst[0] = (c >> 6) | 0xc0;
		dst[1] = (c & 0x3f) | 0x80;
		return (2);
	}
	dst[0] = c;
	return (1);
}

/* Translate a key code into an output key sequence. */
void
input_key(struct window_pane *wp, key_code key, struct mouse_event *m)
{
	const struct input_key_ent	*ike;
	u_int				 i;
	size_t				 dlen;
	char				*out;
	key_code			 justkey;
	struct utf8_data		 ud;

	log_debug("writing key 0x%llx (%s) to %%%u", key,
	    key_string_lookup_key(key), wp->id);

	/* If this is a mouse key, pass off to mouse function. */
	if (KEYC_IS_MOUSE(key)) {
		if (m != NULL && m->wp != -1 && (u_int)m->wp == wp->id)
			input_key_mouse(wp, m);
		return;
	}

	/*
	 * If this is a normal 7-bit key, just send it, with a leading escape
	 * if necessary. If it is a UTF-8 key, split it and send it.
	 */
	justkey = (key & ~(KEYC_XTERM|KEYC_ESCAPE));
	if (justkey <= 0x7f) {
		if (key & KEYC_ESCAPE)
			bufferevent_write(wp->event, "\033", 1);
		ud.data[0] = justkey;
		bufferevent_write(wp->event, &ud.data[0], 1);
		return;
	}
	if (justkey > 0x7f && justkey < KEYC_BASE) {
		if (utf8_split(justkey, &ud) != UTF8_DONE)
			return;
		if (key & KEYC_ESCAPE)
			bufferevent_write(wp->event, "\033", 1);
		bufferevent_write(wp->event, ud.data, ud.size);
		return;
	}

	/*
	 * Then try to look this up as an xterm key, if the flag to output them
	 * is set.
	 */
	if (options_get_number(wp->window->options, "xterm-keys")) {
		if ((out = xterm_keys_lookup(key)) != NULL) {
			bufferevent_write(wp->event, out, strlen(out));
			free(out);
			return;
		}
	}
	key &= ~KEYC_XTERM;

	/* Otherwise look the key up in the table. */
	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 (ike->key == key)
			break;
	}
	if (i == nitems(input_keys)) {
		log_debug("key 0x%llx missing", key);
		return;
	}
	dlen = strlen(ike->data);
	log_debug("found key 0x%llx: \"%s\"", key, ike->data);

	/* Prefix a \033 for escape. */
	if (key & KEYC_ESCAPE)
		bufferevent_write(wp->event, "\033", 1);
	bufferevent_write(wp->event, ike->data, dlen);
}

/* Translate mouse and output. */
static void
input_key_mouse(struct window_pane *wp, struct mouse_event *m)
{
	struct screen	*s = wp->screen;
	int		 mode = s->mode;
	char		 buf[40];
	size_t		 len;
	u_int		 x, y;

	if ((mode & ALL_MOUSE_MODES) == 0)
		return;
	if (!window_pane_visible(wp))
		return;
	if (cmd_mouse_at(wp, m, &x, &y, 0) != 0)
		return;

	/* If this pane is not in button or all mode, discard motion events. */
	if (MOUSE_DRAG(m->b) &&
	    (mode & (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)) == 0)
	    return;

	/*
	 * If this event is a release event and not in all mode, discard it.
	 * In SGR mode we can tell absolutely because a release is normally
	 * shown by the last character. Without SGR, we check if the last
	 * buttons was also a release.
	 */
	if (m->sgr_type != ' ') {
		if (MOUSE_DRAG(m->sgr_b) &&
		    MOUSE_BUTTONS(m->sgr_b) == 3 &&
		    (~mode & MODE_MOUSE_ALL))
			return;
	} else {
		if (MOUSE_DRAG(m->b) &&
		    MOUSE_BUTTONS(m->b) == 3 &&
		    MOUSE_BUTTONS(m->lb) == 3 &&
		    (~mode & MODE_MOUSE_ALL))
			return;
	}

	/*
	 * Use the SGR (1006) extension only if the application requested it
	 * and the underlying terminal also sent the event in this format (this
	 * is because an old style mouse release event cannot be converted into
	 * the new SGR format, since the released button is unknown). Otherwise
	 * pretend that tmux doesn't speak this extension, and fall back to the
	 * UTF-8 (1005) extension if the application requested, or to the
	 * legacy format.
	 */
	if (m->sgr_type != ' ' && (s->mode & MODE_MOUSE_SGR)) {
		len = xsnprintf(buf, sizeof buf, "\033[<%u;%u;%u%c",
		    m->sgr_b, x + 1, y + 1, m->sgr_type);
	} else if (s->mode & MODE_MOUSE_UTF8) {
		if (m->b > 0x7ff - 32 || x > 0x7ff - 33 || y > 0x7ff - 33)
			return;
		len = xsnprintf(buf, sizeof buf, "\033[M");
		len += input_split2(m->b + 32, &buf[len]);
		len += input_split2(x + 33, &buf[len]);
		len += input_split2(y + 33, &buf[len]);
	} else {
		if (m->b > 223)
			return;
		len = xsnprintf(buf, sizeof buf, "\033[M");
		buf[len++] = m->b + 32;
		buf[len++] = x + 33;
		buf[len++] = y + 33;
	}
	log_debug("writing mouse %.*s to %%%u", (int)len, buf, wp->id);
	bufferevent_write(wp->event, buf, len);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: input-keys.c,v 1.62 2017/06/28 11:36:39 nicm Exp $ */
2
3			/*
4			* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15			* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16			* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/types.h>
20
21			#include <stdint.h>
22			#include <stdlib.h>
23			#include <string.h>
24
25			#include "tmux.h"
26
27			/*
28			* This file is rather misleadingly named, it contains the code which takes a
29			* key code and translates it into something suitable to be sent to the
30			* application running in a pane (similar to input.c does in the other
31			* direction with output).
32			*/
33
34			static void input_key_mouse(struct window_pane , struct mouse_event );
35
36			struct input_key_ent {
37			key_code key;
38			const char *data;
39
40			int flags;
41			#define INPUTKEY_KEYPAD 0x1 /* keypad key */
42			#define INPUTKEY_CURSOR 0x2 /* cursor key */
43			};
44
45			static const struct input_key_ent input_keys[] = {
46			/* Backspace key. */
47			{ KEYC_BSPACE, "\177", 0 },
48
49			/* Paste keys. */
50			{ KEYC_PASTE_START, "\033[200~", 0 },
51			{ KEYC_PASTE_END, "\033[201~", 0 },
52
53			/* Function keys. */
54			{ KEYC_F1, "\033OP", 0 },
55			{ KEYC_F2, "\033OQ", 0 },
56			{ KEYC_F3, "\033OR", 0 },
57			{ KEYC_F4, "\033OS", 0 },
58			{ KEYC_F5, "\033[15~", 0 },
59			{ KEYC_F6, "\033[17~", 0 },
60			{ KEYC_F7, "\033[18~", 0 },
61			{ KEYC_F8, "\033[19~", 0 },
62			{ KEYC_F9, "\033[20~", 0 },
63			{ KEYC_F10, "\033[21~", 0 },
64			{ KEYC_F11, "\033[23~", 0 },
65			{ KEYC_F12, "\033[24~", 0 },
66			{ KEYC_F1\|KEYC_SHIFT, "\033[25~", 0 },
67			{ KEYC_F2\|KEYC_SHIFT, "\033[26~", 0 },
68			{ KEYC_F3\|KEYC_SHIFT, "\033[28~", 0 },
69			{ KEYC_F4\|KEYC_SHIFT, "\033[29~", 0 },
70			{ KEYC_F5\|KEYC_SHIFT, "\033[31~", 0 },
71			{ KEYC_F6\|KEYC_SHIFT, "\033[32~", 0 },
72			{ KEYC_F7\|KEYC_SHIFT, "\033[33~", 0 },
73			{ KEYC_F8\|KEYC_SHIFT, "\033[34~", 0 },
74			{ KEYC_IC, "\033[2~", 0 },
75			{ KEYC_DC, "\033[3~", 0 },
76			{ KEYC_HOME, "\033[1~", 0 },
77			{ KEYC_END, "\033[4~", 0 },
78			{ KEYC_NPAGE, "\033[6~", 0 },
79			{ KEYC_PPAGE, "\033[5~", 0 },
80			{ KEYC_BTAB, "\033[Z", 0 },
81
82			/*
83			* Arrow keys. Cursor versions must come first. The codes are toggled
84			* between CSI and SS3 versions when ctrl is pressed.
85			*/
86			{ KEYC_UP\|KEYC_CTRL, "\033[A", INPUTKEY_CURSOR },
87			{ KEYC_DOWN\|KEYC_CTRL, "\033[B", INPUTKEY_CURSOR },
88			{ KEYC_RIGHT\|KEYC_CTRL, "\033[C", INPUTKEY_CURSOR },
89			{ KEYC_LEFT\|KEYC_CTRL, "\033[D", INPUTKEY_CURSOR },
90
91			{ KEYC_UP, "\033OA", INPUTKEY_CURSOR },
92			{ KEYC_DOWN, "\033OB", INPUTKEY_CURSOR },
93			{ KEYC_RIGHT, "\033OC", INPUTKEY_CURSOR },
94			{ KEYC_LEFT, "\033OD", INPUTKEY_CURSOR },
95
96			{ KEYC_UP\|KEYC_CTRL, "\033OA", 0 },
97			{ KEYC_DOWN\|KEYC_CTRL, "\033OB", 0 },
98			{ KEYC_RIGHT\|KEYC_CTRL, "\033OC", 0 },
99			{ KEYC_LEFT\|KEYC_CTRL, "\033OD", 0 },
100
101			{ KEYC_UP, "\033[A", 0 },
102			{ KEYC_DOWN, "\033[B", 0 },
103			{ KEYC_RIGHT, "\033[C", 0 },
104			{ KEYC_LEFT, "\033[D", 0 },
105
106			/* Keypad keys. Keypad versions must come first. */
107			{ KEYC_KP_SLASH, "\033Oo", INPUTKEY_KEYPAD },
108			{ KEYC_KP_STAR, "\033Oj", INPUTKEY_KEYPAD },
109			{ KEYC_KP_MINUS, "\033Om", INPUTKEY_KEYPAD },
110			{ KEYC_KP_SEVEN, "\033Ow", INPUTKEY_KEYPAD },
111			{ KEYC_KP_EIGHT, "\033Ox", INPUTKEY_KEYPAD },
112			{ KEYC_KP_NINE, "\033Oy", INPUTKEY_KEYPAD },
113			{ KEYC_KP_PLUS, "\033Ok", INPUTKEY_KEYPAD },
114			{ KEYC_KP_FOUR, "\033Ot", INPUTKEY_KEYPAD },
115			{ KEYC_KP_FIVE, "\033Ou", INPUTKEY_KEYPAD },
116			{ KEYC_KP_SIX, "\033Ov", INPUTKEY_KEYPAD },
117			{ KEYC_KP_ONE, "\033Oq", INPUTKEY_KEYPAD },
118			{ KEYC_KP_TWO, "\033Or", INPUTKEY_KEYPAD },
119			{ KEYC_KP_THREE, "\033Os", INPUTKEY_KEYPAD },
120			{ KEYC_KP_ENTER, "\033OM", INPUTKEY_KEYPAD },
121			{ KEYC_KP_ZERO, "\033Op", INPUTKEY_KEYPAD },
122			{ KEYC_KP_PERIOD, "\033On", INPUTKEY_KEYPAD },
123
124			{ KEYC_KP_SLASH, "/", 0 },
125			{ KEYC_KP_STAR, "*", 0 },
126			{ KEYC_KP_MINUS, "-", 0 },
127			{ KEYC_KP_SEVEN, "7", 0 },
128			{ KEYC_KP_EIGHT, "8", 0 },
129			{ KEYC_KP_NINE, "9", 0 },
130			{ KEYC_KP_PLUS, "+", 0 },
131			{ KEYC_KP_FOUR, "4", 0 },
132			{ KEYC_KP_FIVE, "5", 0 },
133			{ KEYC_KP_SIX, "6", 0 },
134			{ KEYC_KP_ONE, "1", 0 },
135			{ KEYC_KP_TWO, "2", 0 },
136			{ KEYC_KP_THREE, "3", 0 },
137			{ KEYC_KP_ENTER, "\n", 0 },
138			{ KEYC_KP_ZERO, "0", 0 },
139			{ KEYC_KP_PERIOD, ".", 0 },
140			};
141
142			/* Split a character into two UTF-8 bytes. */
143			static size_t
144			input_split2(u_int c, u_char *dst)
145			{
146			if (c > 0x7f) {
147			dst[0] = (c >> 6) \| 0xc0;
148			dst[1] = (c & 0x3f) \| 0x80;
149			return (2);
150			}
151			dst[0] = c;
152			return (1);
153			}
154
155			/* Translate a key code into an output key sequence. */
156			void
157			input_key(struct window_pane wp, key_code key, struct mouse_event m)
158			{
159			const struct input_key_ent *ike;
160			u_int i;
161			size_t dlen;
162			char *out;
163			key_code justkey;
164			struct utf8_data ud;
165
166			log_debug("writing key 0x%llx (%s) to %%%u", key,
167			key_string_lookup_key(key), wp->id);
168
169			/* If this is a mouse key, pass off to mouse function. */
170			if (KEYC_IS_MOUSE(key)) {
171			if (m != NULL && m->wp != -1 && (u_int)m->wp == wp->id)
172			input_key_mouse(wp, m);
173			return;
174			}
175
176			/*
177			* If this is a normal 7-bit key, just send it, with a leading escape
178			* if necessary. If it is a UTF-8 key, split it and send it.
179			*/
180			justkey = (key & ~(KEYC_XTERM\|KEYC_ESCAPE));
181			if (justkey <= 0x7f) {
182			if (key & KEYC_ESCAPE)
183			bufferevent_write(wp->event, "\033", 1);
184			ud.data[0] = justkey;
185			bufferevent_write(wp->event, &ud.data[0], 1);
186			return;
187			}
188			if (justkey > 0x7f && justkey < KEYC_BASE) {
189			if (utf8_split(justkey, &ud) != UTF8_DONE)
190			return;
191			if (key & KEYC_ESCAPE)
192			bufferevent_write(wp->event, "\033", 1);
193			bufferevent_write(wp->event, ud.data, ud.size);
194			return;
195			}
196
197			/*
198			* Then try to look this up as an xterm key, if the flag to output them
199			* is set.
200			*/
201			if (options_get_number(wp->window->options, "xterm-keys")) {
202			if ((out = xterm_keys_lookup(key)) != NULL) {
203			bufferevent_write(wp->event, out, strlen(out));
204			free(out);
205			return;
206			}
207			}
208			key &= ~KEYC_XTERM;
209
210			/* Otherwise look the key up in the table. */
211			for (i = 0; i < nitems(input_keys); i++) {
212			ike = &input_keys[i];
213
214			if ((ike->flags & INPUTKEY_KEYPAD) &&
215			!(wp->screen->mode & MODE_KKEYPAD))
216			continue;
217			if ((ike->flags & INPUTKEY_CURSOR) &&
218			!(wp->screen->mode & MODE_KCURSOR))
219			continue;
220
221			if ((key & KEYC_ESCAPE) && (ike->key \| KEYC_ESCAPE) == key)
222			break;
223			if (ike->key == key)
224			break;
225			}
226			if (i == nitems(input_keys)) {
227			log_debug("key 0x%llx missing", key);
228			return;
229			}
230			dlen = strlen(ike->data);
231			log_debug("found key 0x%llx: \"%s\"", key, ike->data);
232
233			/* Prefix a \033 for escape. */
234			if (key & KEYC_ESCAPE)
235			bufferevent_write(wp->event, "\033", 1);
236			bufferevent_write(wp->event, ike->data, dlen);
237			}
238
239			/* Translate mouse and output. */
240			static void
241			input_key_mouse(struct window_pane wp, struct mouse_event m)
242			{
243			struct screen *s = wp->screen;
244			int mode = s->mode;
245			char buf[40];
246			size_t len;
247			u_int x, y;
248
249			if ((mode & ALL_MOUSE_MODES) == 0)
250			return;
251			if (!window_pane_visible(wp))
252			return;
253			if (cmd_mouse_at(wp, m, &x, &y, 0) != 0)
254			return;
255
256			/* If this pane is not in button or all mode, discard motion events. */
257			if (MOUSE_DRAG(m->b) &&
258			(mode & (MODE_MOUSE_BUTTON\|MODE_MOUSE_ALL)) == 0)
259			return;
260
261			/*
262			* If this event is a release event and not in all mode, discard it.
263			* In SGR mode we can tell absolutely because a release is normally
264			* shown by the last character. Without SGR, we check if the last
265			* buttons was also a release.
266			*/
267			if (m->sgr_type != ' ') {
268			if (MOUSE_DRAG(m->sgr_b) &&
269			MOUSE_BUTTONS(m->sgr_b) == 3 &&
270			(~mode & MODE_MOUSE_ALL))
271			return;
272			} else {
273			if (MOUSE_DRAG(m->b) &&
274			MOUSE_BUTTONS(m->b) == 3 &&
275			MOUSE_BUTTONS(m->lb) == 3 &&
276			(~mode & MODE_MOUSE_ALL))
277			return;
278			}
279
280			/*
281			* Use the SGR (1006) extension only if the application requested it
282			* and the underlying terminal also sent the event in this format (this
283			* is because an old style mouse release event cannot be converted into
284			* the new SGR format, since the released button is unknown). Otherwise
285			* pretend that tmux doesn't speak this extension, and fall back to the
286			* UTF-8 (1005) extension if the application requested, or to the
287			* legacy format.
288			*/
289			if (m->sgr_type != ' ' && (s->mode & MODE_MOUSE_SGR)) {
290			len = xsnprintf(buf, sizeof buf, "\033[<%u;%u;%u%c",
291			m->sgr_b, x + 1, y + 1, m->sgr_type);
292			} else if (s->mode & MODE_MOUSE_UTF8) {
293			if (m->b > 0x7ff - 32 \|\| x > 0x7ff - 33 \|\| y > 0x7ff - 33)
294			return;
295			len = xsnprintf(buf, sizeof buf, "\033[M");
296			len += input_split2(m->b + 32, &buf[len]);
297			len += input_split2(x + 33, &buf[len]);
298			len += input_split2(y + 33, &buf[len]);
299			} else {
300			if (m->b > 223)
301			return;
302			len = xsnprintf(buf, sizeof buf, "\033[M");
303			buf[len++] = m->b + 32;
304			buf[len++] = x + 33;
305			buf[len++] = y + 33;
306			}
307			log_debug("writing mouse %.*s to %%%u", (int)len, buf, wp->id);
308			bufferevent_write(wp->event, buf, len);
309			}