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