cmd-unlink-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 "tmux.h"
  22
  23 /*
  24  * Unlink a window, unless it would be destroyed by doing so (only one link).
  25  */
  26
  27 int     cmd_unlink_window_exec(struct cmd *, struct cmd_ctx *);
  28
  29 const struct cmd_entry cmd_unlink_window_entry = {
  30         "unlink-window", "unlinkw",
  31         "[-k] " CMD_TARGET_WINDOW_USAGE,
  32         0, "k",
  33         cmd_target_init,
  34         cmd_target_parse,
  35         cmd_unlink_window_exec,
  36         cmd_target_free,
  37         cmd_target_print
  38 };
  39
  40 int
  41 cmd_unlink_window_exec(struct cmd *self, struct cmd_ctx *ctx)
  42 {
  43         struct cmd_target_data  *data = self->data;
  44         struct winlink          *wl;
  45         struct window           *w;
  46         struct session          *s, *s2;
  47         struct session_group    *sg;
  48         u_int                    references;
  49
  50         if ((wl = cmd_find_window(ctx, data->target, &s)) == NULL)
  51                 return (-1);
  52         w = wl->window;
  53
  54         sg = session_group_find(s);
  55         if (sg != NULL) {
  56                 references = 0;
  57                 TAILQ_FOREACH(s2, &sg->sessions, gentry)
  58                         references++;
  59         } else
  60                 references = 1;
  61
  62         if (!cmd_check_flag(data->chflags, 'k') && w->references == references) {
  63                 ctx->error(ctx, "window is only linked to one session");
  64                 return (-1);
  65         }
  66
  67         server_unlink_window(s, wl);
  68         recalculate_sizes();
  69
  70         return (0);
  71 }