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         "kt:", 0, 0,
  32         "[-k] " CMD_TARGET_WINDOW_USAGE,
  33         0,
  34         NULL,
  35         NULL,
  36         cmd_unlink_window_exec
  37 };
  38
  39 int
  40 cmd_unlink_window_exec(struct cmd *self, struct cmd_ctx *ctx)
  41 {
  42         struct args             *args = self->args;
  43         struct winlink          *wl;
  44         struct window           *w;
  45         struct session          *s, *s2;
  46         struct session_group    *sg;
  47         u_int                    references;
  48
  49         if ((wl = cmd_find_window(ctx, args_get(args, 't'), &s)) == NULL)
  50                 return (-1);
  51         w = wl->window;
  52
  53         sg = session_group_find(s);
  54         if (sg != NULL) {
  55                 references = 0;
  56                 TAILQ_FOREACH(s2, &sg->sessions, gentry)
  57                         references++;
  58         } else
  59                 references = 1;
  60
  61         if (!args_has(self->args, 'k') && w->references == references) {
  62                 ctx->error(ctx, "window is only linked to one session");
  63                 return (-1);
  64         }
  65
  66         server_unlink_window(s, wl);
  67         recalculate_sizes();
  68
  69         return (0);
  70 }