1 /* $OpenBSD$ */
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 <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
35 enum cmd_retval cmd_split_window_exec(struct cmd *, struct cmd_q *);
36
37 const struct cmd_entry cmd_split_window_entry = {
38 .name = "split-window",
39 .alias = "splitw",
40
41 .args = { "bc:dfF:l:hp:Pt:v", 0, -1 },
42 .usage = "[-bdfhvP] [-c start-directory] [-F format] "
43 "[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]",
44
45 .tflag = CMD_PANE,
46
47 .flags = 0,
48 .exec = cmd_split_window_exec
49 };
50
51 enum cmd_retval
cmd_split_window_exec(struct cmd * self,struct cmd_q * cmdq)52 cmd_split_window_exec(struct cmd *self, struct cmd_q *cmdq)
53 {
54 struct args *args = self->args;
55 struct session *s = cmdq->state.tflag.s;
56 struct winlink *wl = cmdq->state.tflag.wl;
57 struct window *w = wl->window;
58 struct window_pane *wp = cmdq->state.tflag.wp, *new_wp = NULL;
59 struct environ *env;
60 const char *cmd, *path, *shell, *template, *cwd, *to_free;
61 char **argv, *cause, *new_cause, *cp;
62 u_int hlimit;
63 int argc, size, percentage;
64 enum layout_type type;
65 struct layout_cell *lc;
66 struct format_tree *ft;
67 struct environ_entry *envent;
68
69 server_unzoom_window(w);
70
71 env = environ_create();
72 environ_copy(global_environ, env);
73 environ_copy(s->environ, env);
74 server_fill_environ(s, env);
75
76 if (args->argc == 0) {
77 cmd = options_get_string(s->options, "default-command");
78 if (cmd != NULL && *cmd != '\0') {
79 argc = 1;
80 argv = (char **)&cmd;
81 } else {
82 argc = 0;
83 argv = NULL;
84 }
85 } else {
86 argc = args->argc;
87 argv = args->argv;
88 }
89
90 to_free = NULL;
91 if (args_has(args, 'c')) {
92 ft = format_create(cmdq, 0);
93 format_defaults(ft, cmdq->state.c, s, NULL, NULL);
94 to_free = cwd = format_expand(ft, args_get(args, 'c'));
95 format_free(ft);
96 } else if (cmdq->client != NULL && cmdq->client->session == NULL)
97 cwd = cmdq->client->cwd;
98 else
99 cwd = s->cwd;
100
101 type = LAYOUT_TOPBOTTOM;
102 if (args_has(args, 'h'))
103 type = LAYOUT_LEFTRIGHT;
104
105 size = -1;
106 if (args_has(args, 'l')) {
107 size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
108 if (cause != NULL) {
109 xasprintf(&new_cause, "size %s", cause);
110 free(cause);
111 cause = new_cause;
112 goto error;
113 }
114 } else if (args_has(args, 'p')) {
115 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
116 if (cause != NULL) {
117 xasprintf(&new_cause, "percentage %s", cause);
118 free(cause);
119 cause = new_cause;
120 goto error;
121 }
122 if (type == LAYOUT_TOPBOTTOM)
123 size = (wp->sy * percentage) / 100;
124 else
125 size = (wp->sx * percentage) / 100;
126 }
127 hlimit = options_get_number(s->options, "history-limit");
128
129 shell = options_get_string(s->options, "default-shell");
130 if (*shell == '\0' || areshell(shell))
131 shell = _PATH_BSHELL;
132
133 lc = layout_split_pane(wp, type, size, args_has(args, 'b'),
134 args_has(args, 'f'));
135 if (lc == NULL) {
136 cause = xstrdup("pane too small");
137 goto error;
138 }
139 new_wp = window_add_pane(w, wp, hlimit);
140 layout_assign_pane(lc, new_wp);
141
142 path = NULL;
143 if (cmdq->client != NULL && cmdq->client->session == NULL)
144 envent = environ_find(cmdq->client->environ, "PATH");
145 else
146 envent = environ_find(s->environ, "PATH");
147 if (envent != NULL)
148 path = envent->value;
149
150 if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env,
151 s->tio, &cause) != 0)
152 goto error;
153
154 server_redraw_window(w);
155
156 if (!args_has(args, 'd')) {
157 window_set_active_pane(w, new_wp);
158 session_select(s, wl->idx);
159 server_redraw_session(s);
160 } else
161 server_status_session(s);
162
163 environ_free(env);
164
165 if (args_has(args, 'P')) {
166 if ((template = args_get(args, 'F')) == NULL)
167 template = SPLIT_WINDOW_TEMPLATE;
168
169 ft = format_create(cmdq, 0);
170 format_defaults(ft, cmdq->state.c, s, wl, new_wp);
171
172 cp = format_expand(ft, template);
173 cmdq_print(cmdq, "%s", cp);
174 free(cp);
175
176 format_free(ft);
177 }
178 notify_window_layout_changed(w);
179
180 if (to_free != NULL)
181 free((void *)to_free);
182 return (CMD_RETURN_NORMAL);
183
184 error:
185 environ_free(env);
186 if (new_wp != NULL) {
187 layout_close_pane(new_wp);
188 window_remove_pane(w, new_wp);
189 }
190 cmdq_error(cmdq, "create pane failed: %s", cause);
191 free(cause);
192
193 if (to_free != NULL)
194 free((void *)to_free);
195 return (CMD_RETURN_ERROR);
196 }
197