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 = { "c:FHKlMN:Rt:X", 0, -1, NULL },
  37         .usage = "[-FHKlMRX] [-c target-client] [-N repeat-count] "
  38                  CMD_TARGET_PANE_USAGE " key ...",
  39
  40         .target = { 't', CMD_FIND_PANE, 0 },
  41
  42         .flags = CMD_AFTERHOOK|CMD_CLIENT_CFLAG|CMD_CLIENT_CANFAIL,
  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     struct args *args, 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 = NULL;
  70         struct key_binding              *bd;
  71         struct key_event                *event;
  72
  73         if (args_has(args, 'K')) {
  74                 if (tc == NULL)
  75                         return (item);
  76                 event = xcalloc(1, sizeof *event);
  77                 event->key = key|KEYC_SENT;
  78                 memset(&event->m, 0, sizeof event->m);
  79                 if (server_client_handle_key(tc, event) == 0) {
  80                         free(event->buf);
  81                         free(event);
  82                 }
  83                 return (item);
  84         }
  85
  86         wme = TAILQ_FIRST(&wp->modes);
  87         if (wme == NULL || wme->mode->key_table == NULL) {
  88                 if (window_pane_key(wp, tc, s, wl, key, NULL) != 0)
  89                         return (NULL);
  90                 return (item);
  91         }
  92         table = key_bindings_get_table(wme->mode->key_table(wme), 1);
  93
  94         bd = key_bindings_get(table, key & ~KEYC_MASK_FLAGS);
  95         if (bd != NULL) {
  96                 table->references++;
  97                 after = key_bindings_dispatch(bd, after, tc, NULL, target);
  98                 key_bindings_unref_table(table);
  99         }
 100         return (after);
 101 }
 102
 103 static struct cmdq_item *
 104 cmd_send_keys_inject_string(struct cmdq_item *item, struct cmdq_item *after,
 105     struct args *args, int i)
 106 {
 107         const char              *s = args_string(args, i);
 108         struct utf8_data        *ud, *loop;
 109         utf8_char                uc;
 110         key_code                 key;
 111         char                    *endptr;
 112         long                     n;
 113         int                      literal;
 114
 115         if (args_has(args, 'H')) {
 116                 n = strtol(s, &endptr, 16);
 117                 if (*s =='\0' || n < 0 || n > 0xff || *endptr != '\0')
 118                         return (item);
 119                 return (cmd_send_keys_inject_key(item, after, args,
 120                     KEYC_LITERAL|n));
 121         }
 122
 123         literal = args_has(args, 'l');
 124         if (!literal) {
 125                 key = key_string_lookup_string(s);
 126                 if (key != KEYC_NONE && key != KEYC_UNKNOWN) {
 127                         after = cmd_send_keys_inject_key(item, after, args,
 128                             key);
 129                         if (after != NULL)
 130                                 return (after);
 131                 }
 132                 literal = 1;
 133         }
 134         if (literal) {
 135                 ud = utf8_fromcstr(s);
 136                 for (loop = ud; loop->size != 0; loop++) {
 137                         if (loop->size == 1 && loop->data[0] <= 0x7f)
 138                                 key = loop->data[0];
 139                         else {
 140                                 if (utf8_from_data(loop, &uc) != UTF8_DONE)
 141                                         continue;
 142                                 key = uc;
 143                         }
 144                         after = cmd_send_keys_inject_key(item, after, args,
 145                             key);
 146                 }
 147                 free(ud);
 148         }
 149         return (after);
 150 }
 151
 152 static enum cmd_retval
 153 cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
 154 {
 155         struct args                     *args = cmd_get_args(self);
 156         struct cmd_find_state           *target = cmdq_get_target(item);
 157         struct client                   *tc = cmdq_get_target_client(item);
 158         struct session                  *s = target->s;
 159         struct winlink                  *wl = target->wl;
 160         struct window_pane              *wp = target->wp;
 161         struct key_event                *event = cmdq_get_event(item);
 162         struct mouse_event              *m = &event->m;
 163         struct window_mode_entry        *wme = TAILQ_FIRST(&wp->modes);
 164         struct cmdq_item                *after = item;
 165         key_code                         key;
 166         u_int                            i, np = 1;
 167         u_int                            count = args_count(args);
 168         char                            *cause = NULL;
 169
 170         if (args_has(args, 'N')) {
 171                 np = args_strtonum_and_expand(args, 'N', 1, UINT_MAX, item,
 172                          &cause);
 173                 if (cause != NULL) {
 174                         cmdq_error(item, "repeat count %s", cause);
 175                         free(cause);
 176                         return (CMD_RETURN_ERROR);
 177                 }
 178                 if (wme != NULL && (args_has(args, 'X') || count == 0)) {
 179                         if (wme->mode->command == NULL) {
 180                                 cmdq_error(item, "not in a mode");
 181                                 return (CMD_RETURN_ERROR);
 182                         }
 183                         wme->prefix = np;
 184                 }
 185         }
 186
 187         if (args_has(args, 'X')) {
 188                 if (wme == NULL || wme->mode->command == NULL) {
 189                         cmdq_error(item, "not in a mode");
 190                         return (CMD_RETURN_ERROR);
 191                 }
 192                 if (!m->valid)
 193                         m = NULL;
 194                 wme->mode->command(wme, tc, s, wl, args, m);
 195                 return (CMD_RETURN_NORMAL);
 196         }
 197
 198         if (args_has(args, 'M')) {
 199                 wp = cmd_mouse_pane(m, &s, NULL);
 200                 if (wp == NULL) {
 201                         cmdq_error(item, "no mouse target");
 202                         return (CMD_RETURN_ERROR);
 203                 }
 204                 window_pane_key(wp, tc, s, wl, m->key, m);
 205                 return (CMD_RETURN_NORMAL);
 206         }
 207
 208         if (cmd_get_entry(self) == &cmd_send_prefix_entry) {
 209                 if (args_has(args, '2'))
 210                         key = options_get_number(s->options, "prefix2");
 211                 else
 212                         key = options_get_number(s->options, "prefix");
 213                 cmd_send_keys_inject_key(item, item, args, key);
 214                 return (CMD_RETURN_NORMAL);
 215         }
 216
 217         if (args_has(args, 'R')) {
 218                 colour_palette_clear(&wp->palette);
 219                 input_reset(wp->ictx, 1);
 220                 wp->flags |= (PANE_STYLECHANGED|PANE_REDRAW);
 221         }
 222
 223         if (count == 0) {
 224                 if (args_has(args, 'N') || args_has(args, 'R'))
 225                         return (CMD_RETURN_NORMAL);
 226                 for (; np != 0; np--)
 227                         cmd_send_keys_inject_key(item, NULL, args, event->key);
 228                 return (CMD_RETURN_NORMAL);
 229         }
 230
 231         for (; np != 0; np--) {
 232                 for (i = 0; i < count; i++) {
 233                         after = cmd_send_keys_inject_string(item, after, args,
 234                             i);
 235                 }
 236         }
 237
 238         return (CMD_RETURN_NORMAL);
 239 }