xref: /minix3/external/bsd/tmux/dist/cmd-unlink-window.c (revision 7c48de6cc4c6d56f2277d378dba01dbac8a8c3b9)
1 /* $Id: cmd-unlink-window.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv Exp $ */
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 }
71