cmd-new-window.c

   1 /* $OpenBSD$ */
   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 <stdlib.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * Create a new window.
  27  */
  28
  29 int     cmd_new_window_parse(struct cmd *, int, char **, char **);
  30 int     cmd_new_window_exec(struct cmd *, struct cmd_ctx *);
  31 void    cmd_new_window_free(struct cmd *);
  32 void    cmd_new_window_init(struct cmd *, int);
  33 size_t  cmd_new_window_print(struct cmd *, char *, size_t);
  34
  35 struct cmd_new_window_data {
  36         char    *target;
  37         char    *name;
  38         char    *cmd;
  39         int      flag_insert_after;
  40         int      flag_detached;
  41         int      flag_kill;
  42 };
  43
  44 const struct cmd_entry cmd_new_window_entry = {
  45         "new-window", "neww",
  46         "[-adk] [-n window-name] [-t target-window] [command]",
  47         0, "",
  48         cmd_new_window_init,
  49         cmd_new_window_parse,
  50         cmd_new_window_exec,
  51         cmd_new_window_free,
  52         cmd_new_window_print
  53 };
  54
  55 /* ARGSUSED */
  56 void
  57 cmd_new_window_init(struct cmd *self, unused int arg)
  58 {
  59         struct cmd_new_window_data       *data;
  60
  61         self->data = data = xmalloc(sizeof *data);
  62         data->target = NULL;
  63         data->name = NULL;
  64         data->cmd = NULL;
  65         data->flag_insert_after = 0;
  66         data->flag_detached = 0;
  67         data->flag_kill = 0;
  68 }
  69
  70 int
  71 cmd_new_window_parse(struct cmd *self, int argc, char **argv, char **cause)
  72 {
  73         struct cmd_new_window_data      *data;
  74         int                              opt;
  75
  76         self->entry->init(self, KEYC_NONE);
  77         data = self->data;
  78
  79         while ((opt = getopt(argc, argv, "adkt:n:")) != -1) {
  80                 switch (opt) {
  81                 case 'a':
  82                         data->flag_insert_after = 1;
  83                         break;
  84                 case 'd':
  85                         data->flag_detached = 1;
  86                         break;
  87                 case 'k':
  88                         data->flag_kill = 1;
  89                         break;
  90                 case 't':
  91                         if (data->target == NULL)
  92                                 data->target = xstrdup(optarg);
  93                         break;
  94                 case 'n':
  95                         if (data->name == NULL)
  96                                 data->name = xstrdup(optarg);
  97                         break;
  98                 default:
  99                         goto usage;
 100                 }
 101         }
 102         argc -= optind;
 103         argv += optind;
 104         if (argc != 0 && argc != 1)
 105                 goto usage;
 106
 107         if (argc == 1)
 108                 data->cmd = xstrdup(argv[0]);
 109
 110         return (0);
 111
 112 usage:
 113         xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
 114
 115         self->entry->free(self);
 116         return (-1);
 117 }
 118
 119 int
 120 cmd_new_window_exec(struct cmd *self, struct cmd_ctx *ctx)
 121 {
 122         struct cmd_new_window_data      *data = self->data;
 123         struct session                  *s;
 124         struct winlink                  *wl;
 125         char                            *cmd, *cwd, *cause;
 126         int                              idx, last;
 127
 128         if (data == NULL)
 129                 return (0);
 130
 131         if (data->flag_insert_after) {
 132                 if ((wl = cmd_find_window(ctx, data->target, &s)) == NULL)
 133                         return (-1);
 134                 idx = wl->idx + 1;
 135
 136                 /* Find the next free index. */
 137                 for (last = idx; last < INT_MAX; last++) {
 138                         if (winlink_find_by_index(&s->windows, last) == NULL)
 139                                 break;
 140                 }
 141                 if (last == INT_MAX) {
 142                         ctx->error(ctx, "no free window indexes");
 143                         return (-1);
 144                 }
 145
 146                 /* Move everything from last - 1 to idx up a bit. */
 147                 for (; last > idx; last--) {
 148                         wl = winlink_find_by_index(&s->windows, last - 1);
 149                         server_link_window(s, wl, s, last, 0, 0, NULL);
 150                         server_unlink_window(s, wl);
 151                 }
 152         } else {
 153                 if ((idx = cmd_find_index(ctx, data->target, &s)) == -2)
 154                         return (-1);
 155         }
 156
 157         wl = NULL;
 158         if (idx != -1)
 159                 wl = winlink_find_by_index(&s->windows, idx);
 160         if (wl != NULL && data->flag_kill) {
 161                 /*
 162                  * Can't use session_detach as it will destroy session if this
 163                  * makes it empty.
 164                  */
 165                 session_alert_cancel(s, wl);
 166                 winlink_stack_remove(&s->lastw, wl);
 167                 winlink_remove(&s->windows, wl);
 168
 169                 /* Force select/redraw if current. */
 170                 if (wl == s->curw) {
 171                         data->flag_detached = 0;
 172                         s->curw = NULL;
 173                 }
 174         }
 175
 176         cmd = data->cmd;
 177         if (cmd == NULL)
 178                 cmd = options_get_string(&s->options, "default-command");
 179         if (ctx->cmdclient == NULL || ctx->cmdclient->cwd == NULL)
 180                 cwd = options_get_string(&s->options, "default-path");
 181         else
 182                 cwd = ctx->cmdclient->cwd;
 183
 184         if (idx == -1)
 185                 idx = -1 - options_get_number(&s->options, "base-index");
 186         wl = session_new(s, data->name, cmd, cwd, idx, &cause);
 187         if (wl == NULL) {
 188                 ctx->error(ctx, "create window failed: %s", cause);
 189                 xfree(cause);
 190                 return (-1);
 191         }
 192         if (!data->flag_detached) {
 193                 session_select(s, wl->idx);
 194                 server_redraw_session_group(s);
 195         } else
 196                 server_status_session_group(s);
 197
 198         return (0);
 199 }
 200
 201 void
 202 cmd_new_window_free(struct cmd *self)
 203 {
 204         struct cmd_new_window_data      *data = self->data;
 205
 206         if (data->target != NULL)
 207                 xfree(data->target);
 208         if (data->name != NULL)
 209                 xfree(data->name);
 210         if (data->cmd != NULL)
 211                 xfree(data->cmd);
 212         xfree(data);
 213 }
 214
 215 size_t
 216 cmd_new_window_print(struct cmd *self, char *buf, size_t len)
 217 {
 218         struct cmd_new_window_data      *data = self->data;
 219         size_t                           off = 0;
 220
 221         off += xsnprintf(buf, len, "%s", self->entry->name);
 222         if (data == NULL)
 223                 return (off);
 224         if (off < len && data->flag_detached)
 225                 off += xsnprintf(buf + off, len - off, " -d");
 226         if (off < len && data->target != NULL)
 227                 off += cmd_prarg(buf + off, len - off, " -t ", data->target);
 228         if (off < len && data->name != NULL)
 229                 off += cmd_prarg(buf + off, len - off, " -n ", data->name);
 230         if (off < len && data->cmd != NULL)
 231                 off += cmd_prarg(buf + off, len - off, " ", data->cmd);
 232         return (off);
 233 }