1 /* $OpenBSD: input-keys.c,v 1.4 2009/10/11 07:01:10 nicm Exp $ */ 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 21 #include <stdint.h> 22 #include <stdlib.h> 23 #include <string.h> 24 25 #include "tmux.h" 26 27 struct input_key_ent { 28 int key; 29 const char *data; 30 31 int flags; 32 #define INPUTKEY_KEYPAD 0x1 /* keypad key */ 33 #define INPUTKEY_CURSOR 0x2 /* cursor key */ 34 #define INPUTKEY_CTRL 0x4 /* may be modified with ctrl */ 35 #define INPUTKEY_XTERM 0x4 /* may have xterm argument appended */ 36 }; 37 38 struct input_key_ent input_keys[] = { 39 /* Backspace key. */ 40 { KEYC_BSPACE, "\177", 0 }, 41 42 /* Function keys. */ 43 { KEYC_F1, "\033OP", INPUTKEY_CTRL|INPUTKEY_XTERM }, 44 { KEYC_F2, "\033OQ", INPUTKEY_CTRL|INPUTKEY_XTERM }, 45 { KEYC_F3, "\033OR", INPUTKEY_CTRL|INPUTKEY_XTERM }, 46 { KEYC_F4, "\033OS", INPUTKEY_CTRL|INPUTKEY_XTERM }, 47 { KEYC_F5, "\033[15~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 48 { KEYC_F6, "\033[17~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 49 { KEYC_F7, "\033[18~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 50 { KEYC_F8, "\033[19~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 51 { KEYC_F9, "\033[20~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 52 { KEYC_F10, "\033[21~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 53 { KEYC_F11, "\033[23~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 54 { KEYC_F12, "\033[24~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 55 { KEYC_F13, "\033[25~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 56 { KEYC_F14, "\033[26~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 57 { KEYC_F15, "\033[28~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 58 { KEYC_F16, "\033[29~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 59 { KEYC_F17, "\033[31~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 60 { KEYC_F18, "\033[32~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 61 { KEYC_F19, "\033[33~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 62 { KEYC_F20, "\033[34~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 63 { KEYC_IC, "\033[2~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 64 { KEYC_DC, "\033[3~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 65 { KEYC_HOME, "\033[1~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 66 { KEYC_END, "\033[4~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 67 { KEYC_NPAGE, "\033[6~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 68 { KEYC_PPAGE, "\033[5~", INPUTKEY_CTRL|INPUTKEY_XTERM }, 69 { KEYC_BTAB, "\033[Z", INPUTKEY_CTRL }, 70 71 /* Arrow keys. Cursor versions must come first. */ 72 { KEYC_UP | KEYC_CTRL, "\033Oa", 0 }, 73 { KEYC_DOWN | KEYC_CTRL, "\033Ob", 0 }, 74 { KEYC_RIGHT | KEYC_CTRL, "\033Oc", 0 }, 75 { KEYC_LEFT | KEYC_CTRL, "\033Od", 0 }, 76 77 { KEYC_UP | KEYC_SHIFT, "\033[a", 0 }, 78 { KEYC_DOWN | KEYC_SHIFT, "\033[b", 0 }, 79 { KEYC_RIGHT | KEYC_SHIFT, "\033[c", 0 }, 80 { KEYC_LEFT | KEYC_SHIFT, "\033[d", 0 }, 81 82 { KEYC_UP, "\033OA", INPUTKEY_CURSOR }, 83 { KEYC_DOWN, "\033OB", INPUTKEY_CURSOR }, 84 { KEYC_RIGHT, "\033OC", INPUTKEY_CURSOR }, 85 { KEYC_LEFT, "\033OD", INPUTKEY_CURSOR }, 86 87 { KEYC_UP, "\033[A", 0 }, 88 { KEYC_DOWN, "\033[B", 0 }, 89 { KEYC_RIGHT, "\033[C", 0 }, 90 { KEYC_LEFT, "\033[D", 0 }, 91 92 /* Keypad keys. Keypad versions must come first. */ 93 { KEYC_KP0_1, "/", INPUTKEY_KEYPAD }, 94 { KEYC_KP0_2, "*", INPUTKEY_KEYPAD }, 95 { KEYC_KP0_3, "-", INPUTKEY_KEYPAD }, 96 { KEYC_KP1_0, "7", INPUTKEY_KEYPAD }, 97 { KEYC_KP1_1, "8", INPUTKEY_KEYPAD }, 98 { KEYC_KP1_2, "9", INPUTKEY_KEYPAD }, 99 { KEYC_KP1_3, "+", INPUTKEY_KEYPAD }, 100 { KEYC_KP2_0, "4", INPUTKEY_KEYPAD }, 101 { KEYC_KP2_1, "5", INPUTKEY_KEYPAD }, 102 { KEYC_KP2_2, "6", INPUTKEY_KEYPAD }, 103 { KEYC_KP3_0, "1", INPUTKEY_KEYPAD }, 104 { KEYC_KP3_1, "2", INPUTKEY_KEYPAD }, 105 { KEYC_KP3_2, "3", INPUTKEY_KEYPAD }, 106 { KEYC_KP3_3, "\n", INPUTKEY_KEYPAD }, /* this can be CRLF too? */ 107 { KEYC_KP4_0, "0", INPUTKEY_KEYPAD }, 108 { KEYC_KP4_2, ".", INPUTKEY_KEYPAD }, 109 { KEYC_KP0_1, "\033Oo", 0 }, 110 { KEYC_KP0_2, "\033Oj", 0 }, 111 { KEYC_KP0_3, "\033Om", 0 }, 112 { KEYC_KP1_0, "\033Ow", 0 }, 113 { KEYC_KP1_1, "\033Ox", 0 }, 114 { KEYC_KP1_2, "\033Oy", 0 }, 115 { KEYC_KP1_3, "\033Ok", 0 }, 116 { KEYC_KP2_0, "\033Ot", 0 }, 117 { KEYC_KP2_1, "\033Ou", 0 }, 118 { KEYC_KP2_2, "\033Ov", 0 }, 119 { KEYC_KP3_0, "\033Oq", 0 }, 120 { KEYC_KP3_1, "\033Or", 0 }, 121 { KEYC_KP3_2, "\033Os", 0 }, 122 { KEYC_KP3_3, "\033OM", 0 }, 123 { KEYC_KP4_0, "\033Op", 0 }, 124 { KEYC_KP4_2, "\033On", 0 }, 125 }; 126 127 /* Translate a key code from client into an output key sequence. */ 128 void 129 input_key(struct window_pane *wp, int key) 130 { 131 struct input_key_ent *ike; 132 u_int i; 133 char ch; 134 size_t dlen; 135 int xterm_keys; 136 137 log_debug2("writing key 0x%x", key); 138 139 if (key != KEYC_NONE && (key & ~KEYC_ESCAPE) < 0x100) { 140 if (key & KEYC_ESCAPE) 141 buffer_write8(wp->out, '\033'); 142 buffer_write8(wp->out, (uint8_t) (key & ~KEYC_ESCAPE)); 143 return; 144 } 145 146 for (i = 0; i < nitems(input_keys); i++) { 147 ike = &input_keys[i]; 148 149 if ((ike->flags & INPUTKEY_KEYPAD) && 150 !(wp->screen->mode & MODE_KKEYPAD)) 151 continue; 152 if ((ike->flags & INPUTKEY_CURSOR) && 153 !(wp->screen->mode & MODE_KCURSOR)) 154 continue; 155 156 if ((key & KEYC_ESCAPE) && (ike->key | KEYC_ESCAPE) == key) 157 break; 158 if ((key & KEYC_SHIFT) && (ike->key | KEYC_SHIFT) == key) 159 break; 160 if ((key & KEYC_CTRL) && (ike->key | KEYC_CTRL) == key) { 161 if (ike->flags & INPUTKEY_CTRL) 162 break; 163 } 164 if (ike->key == key) 165 break; 166 } 167 if (i == nitems(input_keys)) { 168 log_debug2("key 0x%x missing", key); 169 return; 170 } 171 dlen = strlen(ike->data); 172 173 log_debug2("found key 0x%x: \"%s\"", key, ike->data); 174 175 /* 176 * If in xterm keys mode, work out and append the modifier as an 177 * argument. 178 */ 179 xterm_keys = options_get_number(&wp->window->options, "xterm-keys"); 180 if (xterm_keys && ike->flags & INPUTKEY_XTERM) { 181 ch = '\0'; 182 if (key & (KEYC_SHIFT|KEYC_ESCAPE|KEYC_CTRL)) 183 ch = '8'; 184 else if (key & (KEYC_ESCAPE|KEYC_CTRL)) 185 ch = '7'; 186 else if (key & (KEYC_SHIFT|KEYC_CTRL)) 187 ch = '6'; 188 else if (key & KEYC_CTRL) 189 ch = '5'; 190 else if (key & (KEYC_SHIFT|KEYC_ESCAPE)) 191 ch = '4'; 192 else if (key & KEYC_ESCAPE) 193 ch = '3'; 194 else if (key & KEYC_SHIFT) 195 ch = '2'; 196 if (ch != '\0') { 197 buffer_write(wp->out, ike->data, dlen - 1); 198 buffer_write8(wp->out, ';'); 199 buffer_write8(wp->out, ch); 200 buffer_write8(wp->out, ike->data[dlen - 1]); 201 } else 202 buffer_write(wp->out, ike->data, dlen); 203 return; 204 } 205 206 /* 207 * Not in xterm mode. Prefix a \033 for escape, and set bit 5 of the 208 * last byte for ctrl. 209 */ 210 if (key & KEYC_ESCAPE) 211 buffer_write8(wp->out, '\033'); 212 if (key & KEYC_CTRL && ike->flags & INPUTKEY_CTRL) { 213 buffer_write(wp->out, ike->data, dlen - 1); 214 buffer_write8(wp->out, ike->data[dlen - 1] ^ 0x20); 215 return; 216 } 217 buffer_write(wp->out, ike->data, dlen); 218 } 219 220 /* Handle input mouse. */ 221 void 222 input_mouse(struct window_pane *wp, struct mouse_event *m) 223 { 224 if (wp->screen->mode & MODE_MOUSE) { 225 buffer_write(wp->out, "\033[M", 3); 226 buffer_write8(wp->out, m->b + 32); 227 buffer_write8(wp->out, m->x + 33); 228 buffer_write8(wp->out, m->y + 33); 229 } 230 } 231