external/bsd/tmux/dist/cmd-new-window.c

   1 /* Id */
   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 <errno.h>
  22 #include <fcntl.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26
  27 #include "tmux.h"
  28
  29 /*
  30  * Create a new window.
  31  */
  32
  33 enum cmd_retval cmd_new_window_exec(struct cmd *, struct cmd_q *);
  34
  35 const struct cmd_entry cmd_new_window_entry = {
  36         "new-window", "neww",
  37         "ac:dF:kn:Pt:", 0, 1,
  38         "[-adkP] [-c start-directory] [-F format] [-n window-name] "
  39         CMD_TARGET_WINDOW_USAGE " [command]",
  40         0,
  41         NULL,
  42         cmd_new_window_exec
  43 };
  44
  45 enum cmd_retval
  46 cmd_new_window_exec(struct cmd *self, struct cmd_q *cmdq)
  47 {
  48         struct args             *args = self->args;
  49         struct session          *s;
  50         struct winlink          *wl;
  51         struct client           *c;
  52         const char              *cmd, *template;
  53         char                    *cause, *cp;
  54         int                      idx, last, detached, cwd, fd = -1;
  55         struct format_tree      *ft;
  56
  57         if (args_has(args, 'a')) {
  58                 wl = cmd_find_window(cmdq, args_get(args, 't'), &s);
  59                 if (wl == NULL)
  60                         return (CMD_RETURN_ERROR);
  61                 idx = wl->idx + 1;
  62
  63                 /* Find the next free index. */
  64                 for (last = idx; last < INT_MAX; last++) {
  65                         if (winlink_find_by_index(&s->windows, last) == NULL)
  66                                 break;
  67                 }
  68                 if (last == INT_MAX) {
  69                         cmdq_error(cmdq, "no free window indexes");
  70                         return (CMD_RETURN_ERROR);
  71                 }
  72
  73                 /* Move everything from last - 1 to idx up a bit. */
  74                 for (; last > idx; last--) {
  75                         wl = winlink_find_by_index(&s->windows, last - 1);
  76                         server_link_window(s, wl, s, last, 0, 0, NULL);
  77                         server_unlink_window(s, wl);
  78                 }
  79         } else {
  80                 if ((idx = cmd_find_index(cmdq, args_get(args, 't'), &s)) == -2)
  81                         return (CMD_RETURN_ERROR);
  82         }
  83         detached = args_has(args, 'd');
  84
  85         if (args->argc == 0)
  86                 cmd = options_get_string(&s->options, "default-command");
  87         else
  88                 cmd = args->argv[0];
  89
  90         if (args_has(args, 'c')) {
  91                 ft = format_create();
  92                 if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL)
  93                         format_client(ft, c);
  94                 format_session(ft, s);
  95                 format_winlink(ft, s, s->curw);
  96                 format_window_pane(ft, s->curw->window->active);
  97                 cp = format_expand(ft, args_get(args, 'c'));
  98                 format_free(ft);
  99
 100                 if (cp != NULL && *cp != '\0') {
 101                         fd = open(cp, O_RDONLY|O_DIRECTORY);
 102                         free(cp);
 103                         if (fd == -1) {
 104                                 cmdq_error(cmdq, "bad working directory: %s",
 105                                     strerror(errno));
 106                                 return (CMD_RETURN_ERROR);
 107                         }
 108                 } else if (cp != NULL)
 109                         free(cp);
 110                 cwd = fd;
 111         } else if (cmdq->client != NULL && cmdq->client->session == NULL)
 112                 cwd = cmdq->client->cwd;
 113         else
 114                 cwd = s->cwd;
 115
 116         wl = NULL;
 117         if (idx != -1)
 118                 wl = winlink_find_by_index(&s->windows, idx);
 119         if (wl != NULL && args_has(args, 'k')) {
 120                 /*
 121                  * Can't use session_detach as it will destroy session if this
 122                  * makes it empty.
 123                  */
 124                 notify_window_unlinked(s, wl->window);
 125                 wl->flags &= ~WINLINK_ALERTFLAGS;
 126                 winlink_stack_remove(&s->lastw, wl);
 127                 winlink_remove(&s->windows, wl);
 128
 129                 /* Force select/redraw if current. */
 130                 if (wl == s->curw) {
 131                         detached = 0;
 132                         s->curw = NULL;
 133                 }
 134         }
 135
 136         if (idx == -1)
 137                 idx = -1 - options_get_number(&s->options, "base-index");
 138         wl = session_new(s, args_get(args, 'n'), cmd, cwd, idx, &cause);
 139         if (wl == NULL) {
 140                 cmdq_error(cmdq, "create window failed: %s", cause);
 141                 free(cause);
 142                 goto error;
 143         }
 144         if (!detached) {
 145                 session_select(s, wl->idx);
 146                 server_redraw_session_group(s);
 147         } else
 148                 server_status_session_group(s);
 149
 150         if (args_has(args, 'P')) {
 151                 if ((template = args_get(args, 'F')) == NULL)
 152                         template = NEW_WINDOW_TEMPLATE;
 153
 154                 ft = format_create();
 155                 if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL)
 156                         format_client(ft, c);
 157                 format_session(ft, s);
 158                 format_winlink(ft, s, wl);
 159                 format_window_pane(ft, wl->window->active);
 160
 161                 cp = format_expand(ft, template);
 162                 cmdq_print(cmdq, "%s", cp);
 163                 free(cp);
 164
 165                 format_free(ft);
 166         }
 167
 168         if (fd != -1)
 169                 close(fd);
 170         return (CMD_RETURN_NORMAL);
 171
 172 error:
 173         if (fd != -1)
 174                 close(fd);
 175         return (CMD_RETURN_ERROR);
 176 }