cmd-send-keys.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2008 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 <stdlib.h>
  22 #include <string.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * Send keys to client.
  28  */
  29
  30 static enum cmd_retval  cmd_send_keys_exec(struct cmd *, struct cmdq_item *);
  31
  32 const struct cmd_entry cmd_send_keys_entry = {
  33         .name = "send-keys",
  34         .alias = "send",
  35
  36         .args = { "FHlMN:Rt:X", 0, -1, NULL },
  37         .usage = "[-FHlMRX] [-N repeat-count] " CMD_TARGET_PANE_USAGE
  38                  " key ...",
  39
  40         .target = { 't', CMD_FIND_PANE, 0 },
  41
  42         .flags = CMD_AFTERHOOK,
  43         .exec = cmd_send_keys_exec
  44 };
  45
  46 const struct cmd_entry cmd_send_prefix_entry = {
  47         .name = "send-prefix",
  48         .alias = NULL,
  49
  50         .args = { "2t:", 0, 0, NULL },
  51         .usage = "[-2] " CMD_TARGET_PANE_USAGE,
  52
  53         .target = { 't', CMD_FIND_PANE, 0 },
  54
  55         .flags = CMD_AFTERHOOK,
  56         .exec = cmd_send_keys_exec
  57 };
  58
  59 static struct cmdq_item *
  60 cmd_send_keys_inject_key(struct cmdq_item *item, struct cmdq_item *after,
  61     key_code key)
  62 {
  63         struct cmd_find_state           *target = cmdq_get_target(item);
  64         struct client                   *tc = cmdq_get_target_client(item);
  65         struct session                  *s = target->s;
  66         struct winlink                  *wl = target->wl;
  67         struct window_pane              *wp = target->wp;
  68         struct window_mode_entry        *wme;
  69         struct key_table                *table;
  70         struct key_binding              *bd;
  71
  72         wme = TAILQ_FIRST(&wp->modes);
  73         if (wme == NULL || wme->mode->key_table == NULL) {
  74                 if (window_pane_key(wp, tc, s, wl, key, NULL) != 0)
  75                         return (NULL);
  76                 return (item);
  77         }
  78         table = key_bindings_get_table(wme->mode->key_table(wme), 1);
  79
  80         bd = key_bindings_get(table, key & ~KEYC_MASK_FLAGS);
  81         if (bd != NULL) {
  82                 table->references++;
  83                 after = key_bindings_dispatch(bd, after, tc, NULL, target);
  84                 key_bindings_unref_table(table);
  85         }
  86         return (after);
  87 }
  88
  89 static struct cmdq_item *
  90 cmd_send_keys_inject_string(struct cmdq_item *item, struct cmdq_item *after,
  91     struct args *args, int i)
  92 {
  93         const char              *s = args_string(args, i);
  94         struct utf8_data        *ud, *loop;
  95         utf8_char                uc;
  96         key_code                 key;
  97         char                    *endptr;
  98         long                     n;
  99         int                      literal;
 100
 101         if (args_has(args, 'H')) {
 102                 n = strtol(s, &endptr, 16);
 103                 if (*s =='\0' || n < 0 || n > 0xff || *endptr != '\0')
 104                         return (item);
 105                 return (cmd_send_keys_inject_key(item, after, KEYC_LITERAL|n));
 106         }
 107
 108         literal = args_has(args, 'l');
 109         if (!literal) {
 110                 key = key_string_lookup_string(s);
 111                 if (key != KEYC_NONE && key != KEYC_UNKNOWN) {
 112                         after = cmd_send_keys_inject_key(item, after, key);
 113                         if (after != NULL)
 114                                 return (after);
 115                 }
 116                 literal = 1;
 117         }
 118         if (literal) {
 119                 ud = utf8_fromcstr(s);
 120                 for (loop = ud; loop->size != 0; loop++) {
 121                         if (loop->size == 1 && loop->data[0] <= 0x7f)
 122                                 key = loop->data[0];
 123                         else {
 124                                 if (utf8_from_data(loop, &uc) != UTF8_DONE)
 125                                         continue;
 126                                 key = uc;
 127                         }
 128                         after = cmd_send_keys_inject_key(item, after, key);
 129                 }
 130                 free(ud);
 131         }
 132         return (after);
 133 }
 134
 135 static enum cmd_retval
 136 cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 137 {
 138         struct args                     *args = cmd_get_args(self);
 139         struct cmd_find_state           *target = cmdq_get_target(item);
 140         struct client                   *tc = cmdq_get_target_client(item);
 141         struct session                  *s = target->s;
 142         struct winlink                  *wl = target->wl;
 143         struct window_pane              *wp = target->wp;
 144         struct key_event                *event = cmdq_get_event(item);
 145         struct mouse_event              *m = &event->m;
 146         struct window_mode_entry        *wme = TAILQ_FIRST(&wp->modes);
 147         struct cmdq_item                *after = item;
 148         key_code                         key;
 149         u_int                            i, np = 1;
 150         u_int                            count = args_count(args);
 151         char                            *cause = NULL;
 152
 153         if (args_has(args, 'N')) {
 154                 np = args_strtonum_and_expand(args, 'N', 1, UINT_MAX, item,
 155                          &cause);
 156                 if (cause != NULL) {
 157                         cmdq_error(item, "repeat count %s", cause);
 158                         free(cause);
 159                         return (CMD_RETURN_ERROR);
 160                 }
 161                 if (wme != NULL && (args_has(args, 'X') || count == 0)) {
 162                         if (wme->mode->command == NULL) {
 163                                 cmdq_error(item, "not in a mode");
 164                                 return (CMD_RETURN_ERROR);
 165                         }
 166                         wme->prefix = np;
 167                 }
 168         }
 169
 170         if (args_has(args, 'X')) {
 171                 if (wme == NULL || wme->mode->command == NULL) {
 172                         cmdq_error(item, "not in a mode");
 173                         return (CMD_RETURN_ERROR);
 174                 }
 175                 if (!m->valid)
 176                         m = NULL;
 177                 wme->mode->command(wme, tc, s, wl, args, m);
 178                 return (CMD_RETURN_NORMAL);
 179         }
 180
 181         if (args_has(args, 'M')) {
 182                 wp = cmd_mouse_pane(m, &s, NULL);
 183                 if (wp == NULL) {
 184                         cmdq_error(item, "no mouse target");
 185                         return (CMD_RETURN_ERROR);
 186                 }
 187                 window_pane_key(wp, tc, s, wl, m->key, m);
 188                 return (CMD_RETURN_NORMAL);
 189         }
 190
 191         if (cmd_get_entry(self) == &cmd_send_prefix_entry) {
 192                 if (args_has(args, '2'))
 193                         key = options_get_number(s->options, "prefix2");
 194                 else
 195                         key = options_get_number(s->options, "prefix");
 196                 cmd_send_keys_inject_key(item, item, key);
 197                 return (CMD_RETURN_NORMAL);
 198         }
 199
 200         if (args_has(args, 'R')) {
 201                 colour_palette_clear(&wp->palette);
 202                 input_reset(wp->ictx, 1);
 203                 wp->flags |= (PANE_STYLECHANGED|PANE_REDRAW);
 204         }
 205
 206         if (count == 0) {
 207                 if (args_has(args, 'N') || args_has(args, 'R'))
 208                         return (CMD_RETURN_NORMAL);
 209                 for (; np != 0; np--)
 210                         cmd_send_keys_inject_key(item, NULL, event->key);
 211                 return (CMD_RETURN_NORMAL);
 212         }
 213
 214         for (; np != 0; np--) {
 215                 for (i = 0; i < count; i++) {
 216                         after = cmd_send_keys_inject_string(item, after, args,
 217                             i);
 218                 }
 219         }
 220
 221         return (CMD_RETURN_NORMAL);
 222 }