1/* $OpenBSD: cmd-select-layout.c,v 1.41 2022/05/30 12:52:02 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 * Switch window to selected layout.
27 */
28
29static enum cmd_retval	cmd_select_layout_exec(struct cmd *,
30			    struct cmdq_item *);
31
32const struct cmd_entry cmd_select_layout_entry = {
33	.name = "select-layout",
34	.alias = "selectl",
35
36	.args = { "Enopt:", 0, 1, NULL },
37	.usage = "[-Enop] " CMD_TARGET_PANE_USAGE " [layout-name]",
38
39	.target = { 't', CMD_FIND_PANE, 0 },
40
41	.flags = CMD_AFTERHOOK,
42	.exec = cmd_select_layout_exec
43};
44
45const struct cmd_entry cmd_next_layout_entry = {
46	.name = "next-layout",
47	.alias = "nextl",
48
49	.args = { "t:", 0, 0, NULL },
50	.usage = CMD_TARGET_WINDOW_USAGE,
51
52	.target = { 't', CMD_FIND_WINDOW, 0 },
53
54	.flags = CMD_AFTERHOOK,
55	.exec = cmd_select_layout_exec
56};
57
58const struct cmd_entry cmd_previous_layout_entry = {
59	.name = "previous-layout",
60	.alias = "prevl",
61
62	.args = { "t:", 0, 0, NULL },
63	.usage = CMD_TARGET_WINDOW_USAGE,
64
65	.target = { 't', CMD_FIND_WINDOW, 0 },
66
67	.flags = CMD_AFTERHOOK,
68	.exec = cmd_select_layout_exec
69};
70
71static enum cmd_retval
72cmd_select_layout_exec(struct cmd *self, struct cmdq_item *item)
73{
74	struct args		*args = cmd_get_args(self);
75	struct cmd_find_state	*target = cmdq_get_target(item);
76	struct winlink		*wl = target->wl;
77	struct window		*w = wl->window;
78	struct window_pane	*wp = target->wp;
79	const char		*layoutname;
80	char			*oldlayout, *cause;
81	int			 next, previous, layout;
82
83	server_unzoom_window(w);
84
85	next = (cmd_get_entry(self) == &cmd_next_layout_entry);
86	if (args_has(args, 'n'))
87		next = 1;
88	previous = (cmd_get_entry(self) == &cmd_previous_layout_entry);
89	if (args_has(args, 'p'))
90		previous = 1;
91
92	oldlayout = w->old_layout;
93	w->old_layout = layout_dump(w->layout_root);
94
95	if (next || previous) {
96		if (next)
97			layout_set_next(w);
98		else
99			layout_set_previous(w);
100		goto changed;
101	}
102
103	if (args_has(args, 'E')) {
104		layout_spread_out(wp);
105		goto changed;
106	}
107
108	if (args_count(args) != 0)
109		layoutname = args_string(args, 0);
110	else if (args_has(args, 'o'))
111		layoutname = oldlayout;
112	else
113		layoutname = NULL;
114
115	if (!args_has(args, 'o')) {
116		if (layoutname == NULL)
117			layout = w->lastlayout;
118		else
119			layout = layout_set_lookup(layoutname);
120		if (layout != -1) {
121			layout_set_select(w, layout);
122			goto changed;
123		}
124	}
125
126	if (layoutname != NULL) {
127		if (layout_parse(w, layoutname, &cause) == -1) {
128			cmdq_error(item, "%s: %s", cause, layoutname);
129			free(cause);
130			goto error;
131		}
132		goto changed;
133	}
134
135	free(oldlayout);
136	return (CMD_RETURN_NORMAL);
137
138changed:
139	free(oldlayout);
140	recalculate_sizes();
141	server_redraw_window(w);
142	notify_window("window-layout-changed", w);
143	return (CMD_RETURN_NORMAL);
144
145error:
146	free(w->old_layout);
147	w->old_layout = oldlayout;
148	return (CMD_RETURN_ERROR);
149}
150