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 "tmux.h"
22 
23 /*
24  * Unlink a window, unless it would be destroyed by doing so (only one link).
25  */
26 
27 enum cmd_retval	 cmd_unlink_window_exec(struct cmd *, struct cmd_q *);
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 	cmd_unlink_window_exec
36 };
37 
38 enum cmd_retval
39 cmd_unlink_window_exec(struct cmd *self, struct cmd_q *cmdq)
40 {
41 	struct args		*args = self->args;
42 	struct winlink		*wl;
43 	struct window		*w;
44 	struct session		*s, *s2;
45 	struct session_group	*sg;
46 	u_int			 references;
47 
48 	if ((wl = cmd_find_window(cmdq, args_get(args, 't'), &s)) == NULL)
49 		return (CMD_RETURN_ERROR);
50 	w = wl->window;
51 
52 	sg = session_group_find(s);
53 	if (sg != NULL) {
54 		references = 0;
55 		TAILQ_FOREACH(s2, &sg->sessions, gentry)
56 			references++;
57 	} else
58 		references = 1;
59 
60 	if (!args_has(self->args, 'k') && w->references == references) {
61 		cmdq_error(cmdq, "window is only linked to one session");
62 		return (CMD_RETURN_ERROR);
63 	}
64 
65 	server_unlink_window(s, wl);
66 	recalculate_sizes();
67 
68 	return (CMD_RETURN_NORMAL);
69 }
70