1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2009 Nicholas Marriott <[email protected]>
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 <errno.h>
22#include <fcntl.h>
23#include <stdlib.h>
24#include <string.h>
25#include <unistd.h>
26
27#include "tmux.h"
28
29/*
30 * Split a window (add a new pane).
31 */
32
33#define SPLIT_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"
34
35static enum cmd_retval cmd_split_window_exec(struct cmd *,
36 struct cmdq_item *);
37
38const struct cmd_entry cmd_split_window_entry = {
39 .name = "split-window",
40 .alias = "splitw",
41
42 .args = { "bc:de:fF:hIl:p:Pt:v", 0, -1 },
43 .usage = "[-bdefhIPv] [-c start-directory] [-e environment] "
44 "[-F format] [-l size] " CMD_TARGET_PANE_USAGE " [command]",
45
46 .target = { 't', CMD_FIND_PANE, 0 },
47
48 .flags = 0,
49 .exec = cmd_split_window_exec
50};
51
52static enum cmd_retval
53cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
54{
55 struct args *args = self->args;
56 struct cmd_find_state *current = &item->shared->current;
57 struct spawn_context sc;
58 struct client *c = cmd_find_client(item, NULL, 1);
59 struct session *s = item->target.s;
60 struct winlink *wl = item->target.wl;
61 struct window_pane *wp = item->target.wp, *new_wp;
62 enum layout_type type;
63 struct layout_cell *lc;
64 struct cmd_find_state fs;
65 int size, percentage, flags, input;
66 const char *template, *add, *errstr, *p;
67 char *cause, *cp, *copy;
68 size_t plen;
69 struct args_value *value;
70
71 if (args_has(args, 'h'))
72 type = LAYOUT_LEFTRIGHT;
73 else
74 type = LAYOUT_TOPBOTTOM;
75 if ((p = args_get(args, 'l')) != NULL) {
76 plen = strlen(p);
77 if (p[plen - 1] == '%') {
78 copy = xstrdup(p);
79 copy[plen - 1] = '\0';
80 percentage = strtonum(copy, 0, INT_MAX, &errstr);
81 free(copy);
82 if (errstr != NULL) {
83 cmdq_error(item, "percentage %s", errstr);
84 return (CMD_RETURN_ERROR);
85 }
86 if (type == LAYOUT_TOPBOTTOM)
87 size = (wp->sy * percentage) / 100;
88 else
89 size = (wp->sx * percentage) / 100;
90 } else {
91 size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
92 if (cause != NULL) {
93 cmdq_error(item, "lines %s", cause);
94 free(cause);
95 return (CMD_RETURN_ERROR);
96 }
97 }
98 } else if (args_has(args, 'p')) {
99 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
100 if (cause != NULL) {
101 cmdq_error(item, "create pane failed: -p %s", cause);
102 free(cause);
103 return (CMD_RETURN_ERROR);
104 }
105 if (type == LAYOUT_TOPBOTTOM)
106 size = (wp->sy * percentage) / 100;
107 else
108 size = (wp->sx * percentage) / 100;
109 } else
110 size = -1;
111
112 server_unzoom_window(wp->window);
113 input = (args_has(args, 'I') && args->argc == 0);
114
115 flags = 0;
116 if (args_has(args, 'b'))
117 flags |= SPAWN_BEFORE;
118 if (args_has(args, 'f'))
119 flags |= SPAWN_FULLSIZE;
120 if (input || (args->argc == 1 && *args->argv[0] == '\0'))
121 flags |= SPAWN_EMPTY;
122
123 lc = layout_split_pane(wp, type, size, flags);
124 if (lc == NULL) {
125 cmdq_error(item, "no space for new pane");
126 return (CMD_RETURN_ERROR);
127 }
128
129 memset(&sc, 0, sizeof sc);
130 sc.item = item;
131 sc.s = s;
132 sc.wl = wl;
133
134 sc.wp0 = wp;
135 sc.lc = lc;
136
137 sc.name = NULL;
138 sc.argc = args->argc;
139 sc.argv = args->argv;
140 sc.environ = environ_create();
141
142 add = args_first_value(args, 'e', &value);
143 while (add != NULL) {
144 environ_put(sc.environ, add);
145 add = args_next_value(&value);
146 }
147
148 sc.idx = -1;
149 sc.cwd = args_get(args, 'c');
150
151 sc.flags = flags;
152 if (args_has(args, 'd'))
153 sc.flags |= SPAWN_DETACHED;
154
155 if ((new_wp = spawn_pane(&sc, &cause)) == NULL) {
156 cmdq_error(item, "create pane failed: %s", cause);
157 free(cause);
158 return (CMD_RETURN_ERROR);
159 }
160 if (input && window_pane_start_input(new_wp, item, &cause) != 0) {
161 layout_close_pane(new_wp);
162 window_remove_pane(wp->window, new_wp);
163 cmdq_error(item, "%s", cause);
164 free(cause);
165 return (CMD_RETURN_ERROR);
166 }
167 if (!args_has(args, 'd'))
168 cmd_find_from_winlink_pane(current, wl, new_wp, 0);
169 server_redraw_window(wp->window);
170 server_status_session(s);
171
172 if (args_has(args, 'P')) {
173 if ((template = args_get(args, 'F')) == NULL)
174 template = SPLIT_WINDOW_TEMPLATE;
175 cp = format_single(item, template, c, s, wl, new_wp);
176 cmdq_print(item, "%s", cp);
177 free(cp);
178 }
179
180 cmd_find_from_winlink_pane(&fs, wl, new_wp, 0);
181 cmdq_insert_hook(s, item, &fs, "after-split-window");
182
183 environ_free(sc.environ);
184 if (input)
185 return (CMD_RETURN_WAIT);
186 return (CMD_RETURN_NORMAL);
187}
188