xref: /openbsd-src/usr.bin/tmux/cmd-break-pane.c (revision 134e9c117fe89ae8d41181b1409e96985cbe0b1a)
1 /* $OpenBSD: cmd-break-pane.c,v 1.42 2017/02/03 11:57:27 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
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 <stdlib.h>
22 
23 #include "tmux.h"
24 
25 /*
26  * Break pane off into a window.
27  */
28 
29 #define BREAK_PANE_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"
30 
31 static enum cmd_retval	cmd_break_pane_exec(struct cmd *, struct cmdq_item *);
32 
33 const struct cmd_entry cmd_break_pane_entry = {
34 	.name = "break-pane",
35 	.alias = "breakp",
36 
37 	.args = { "dPF:n:s:t:", 0, 0 },
38 	.usage = "[-dP] [-F format] [-n window-name] [-s src-pane] [-t dst-window]",
39 
40 	.sflag = CMD_PANE,
41 	.tflag = CMD_WINDOW_INDEX,
42 
43 	.flags = 0,
44 	.exec = cmd_break_pane_exec
45 };
46 
47 static enum cmd_retval
48 cmd_break_pane_exec(struct cmd *self, struct cmdq_item *item)
49 {
50 	struct args		*args = self->args;
51 	struct winlink		*wl = item->state.sflag.wl;
52 	struct session		*src_s = item->state.sflag.s;
53 	struct session		*dst_s = item->state.tflag.s;
54 	struct window_pane	*wp = item->state.sflag.wp;
55 	struct window		*w = wl->window;
56 	char			*name, *cause;
57 	int			 idx = item->state.tflag.idx;
58 	struct format_tree	*ft;
59 	const char		*template;
60 	char			*cp;
61 
62 	if (idx != -1 && winlink_find_by_index(&dst_s->windows, idx) != NULL) {
63 		cmdq_error(item, "index %d already in use", idx);
64 		return (CMD_RETURN_ERROR);
65 	}
66 
67 	if (window_count_panes(w) == 1) {
68 		cmdq_error(item, "can't break with only one pane");
69 		return (CMD_RETURN_ERROR);
70 	}
71 	server_unzoom_window(w);
72 
73 	TAILQ_REMOVE(&w->panes, wp, entry);
74 	window_lost_pane(w, wp);
75 	layout_close_pane(wp);
76 
77 	w = wp->window = window_create(dst_s->sx, dst_s->sy);
78 	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
79 	w->active = wp;
80 
81 	if (!args_has(args, 'n')) {
82 		name = default_window_name(w);
83 		window_set_name(w, name);
84 		free(name);
85 	} else {
86 		window_set_name(w, args_get(args, 'n'));
87 		options_set_number(w->options, "automatic-rename", 0);
88 	}
89 
90 	layout_init(w, wp);
91 	wp->flags |= PANE_CHANGED;
92 
93 	if (idx == -1)
94 		idx = -1 - options_get_number(dst_s->options, "base-index");
95 	wl = session_attach(dst_s, w, idx, &cause); /* can't fail */
96 	if (!args_has(self->args, 'd'))
97 		session_select(dst_s, wl->idx);
98 
99 	server_redraw_session(src_s);
100 	if (src_s != dst_s)
101 		server_redraw_session(dst_s);
102 	server_status_session_group(src_s);
103 	if (src_s != dst_s)
104 		server_status_session_group(dst_s);
105 
106 	if (args_has(args, 'P')) {
107 		if ((template = args_get(args, 'F')) == NULL)
108 			template = BREAK_PANE_TEMPLATE;
109 
110 		ft = format_create(item, FORMAT_NONE, 0);
111 		format_defaults(ft, item->state.c, dst_s, wl, wp);
112 
113 		cp = format_expand(ft, template);
114 		cmdq_print(item, "%s", cp);
115 		free(cp);
116 
117 		format_free(ft);
118 	}
119 	return (CMD_RETURN_NORMAL);
120 }
121