xref: /openbsd-src/usr.bin/tmux/cmd-break-pane.c (revision 0e2c9d0f0effc1d2ee144f302bcdacd2fbafa082)
1 /* $OpenBSD: cmd-break-pane.c,v 1.44 2017/04/22 08:56:24 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 cmd_find_state	*current = &item->shared->current;
52 	struct client		*c = item->state.c;
53 	struct winlink		*wl = item->state.sflag.wl;
54 	struct session		*src_s = item->state.sflag.s;
55 	struct session		*dst_s = item->state.tflag.s;
56 	struct window_pane	*wp = item->state.sflag.wp;
57 	struct window		*w = wl->window;
58 	char			*name, *cause;
59 	int			 idx = item->state.tflag.idx;
60 	const char		*template;
61 	char			*cp;
62 
63 	if (idx != -1 && winlink_find_by_index(&dst_s->windows, idx) != NULL) {
64 		cmdq_error(item, "index %d already in use", idx);
65 		return (CMD_RETURN_ERROR);
66 	}
67 
68 	if (window_count_panes(w) == 1) {
69 		cmdq_error(item, "can't break with only one pane");
70 		return (CMD_RETURN_ERROR);
71 	}
72 	server_unzoom_window(w);
73 
74 	TAILQ_REMOVE(&w->panes, wp, entry);
75 	window_lost_pane(w, wp);
76 	layout_close_pane(wp);
77 
78 	w = wp->window = window_create(dst_s->sx, dst_s->sy);
79 	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
80 	w->active = wp;
81 
82 	if (!args_has(args, 'n')) {
83 		name = default_window_name(w);
84 		window_set_name(w, name);
85 		free(name);
86 	} else {
87 		window_set_name(w, args_get(args, 'n'));
88 		options_set_number(w->options, "automatic-rename", 0);
89 	}
90 
91 	layout_init(w, wp);
92 	wp->flags |= PANE_CHANGED;
93 
94 	if (idx == -1)
95 		idx = -1 - options_get_number(dst_s->options, "base-index");
96 	wl = session_attach(dst_s, w, idx, &cause); /* can't fail */
97 	if (!args_has(self->args, 'd')) {
98 		session_select(dst_s, wl->idx);
99 		cmd_find_from_session(current, dst_s);
100 	}
101 
102 	server_redraw_session(src_s);
103 	if (src_s != dst_s)
104 		server_redraw_session(dst_s);
105 	server_status_session_group(src_s);
106 	if (src_s != dst_s)
107 		server_status_session_group(dst_s);
108 
109 	if (args_has(args, 'P')) {
110 		if ((template = args_get(args, 'F')) == NULL)
111 			template = BREAK_PANE_TEMPLATE;
112 		cp = format_single(item, template, c, dst_s, wl, wp);
113 		cmdq_print(item, "%s", cp);
114 		free(cp);
115 	}
116 	return (CMD_RETURN_NORMAL);
117 }
118