cmd-split-window.c revision 1.5.4.1 1 /* $OpenBSD$ */
2
3 /*
4 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott (at) 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 static enum cmd_retval cmd_split_window_exec(struct cmd *,
36 struct cmdq_item *);
37
38 const struct cmd_entry cmd_split_window_entry = {
39 .name = "split-window",
40 .alias = "splitw",
41
42 .args = { "bc:dfF:l:hp:Pt:v", 0, -1 },
43 .usage = "[-bdfhvP] [-c start-directory] [-F format] "
44 "[-p percentage|-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
52 static enum cmd_retval
53 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
54 {
55 struct cmd_find_state *current = &item->shared->current;
56 struct args *args = self->args;
57 struct client *c = cmd_find_client(item, NULL, 1);
58 struct session *s = item->target.s;
59 struct winlink *wl = item->target.wl;
60 struct window *w = wl->window;
61 struct window_pane *wp = item->target.wp, *new_wp = NULL;
62 struct environ *env;
63 const char *cmd, *path, *shell, *template, *tmp;
64 char **argv, *cause, *new_cause, *cp, *cwd;
65 u_int hlimit;
66 int argc, size, percentage, before;
67 enum layout_type type;
68 struct layout_cell *lc;
69 struct environ_entry *envent;
70 struct cmd_find_state fs;
71
72 server_unzoom_window(w);
73
74 if (args->argc == 0) {
75 cmd = options_get_string(s->options, "default-command");
76 if (cmd != NULL && *cmd != '\0') {
77 argc = 1;
78 argv = __UNCONST(&cmd);
79 } else {
80 argc = 0;
81 argv = NULL;
82 }
83 } else {
84 argc = args->argc;
85 argv = args->argv;
86 }
87
88 if ((tmp = args_get(args, 'c')) != NULL)
89 cwd = format_single(item, tmp, c, s, NULL, NULL);
90 else
91 cwd = xstrdup(server_client_get_cwd(item->client, s));
92
93 type = LAYOUT_TOPBOTTOM;
94 if (args_has(args, 'h'))
95 type = LAYOUT_LEFTRIGHT;
96 before = args_has(args, 'b');
97
98 size = -1;
99 if (args_has(args, 'l')) {
100 size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
101 if (cause != NULL) {
102 xasprintf(&new_cause, "size %s", cause);
103 free(cause);
104 cause = new_cause;
105 goto error;
106 }
107 } else if (args_has(args, 'p')) {
108 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
109 if (cause != NULL) {
110 xasprintf(&new_cause, "percentage %s", cause);
111 free(cause);
112 cause = new_cause;
113 goto error;
114 }
115 if (type == LAYOUT_TOPBOTTOM)
116 size = (wp->sy * percentage) / 100;
117 else
118 size = (wp->sx * percentage) / 100;
119 }
120 hlimit = options_get_number(s->options, "history-limit");
121
122 shell = options_get_string(s->options, "default-shell");
123 if (*shell == '\0' || areshell(shell))
124 shell = _PATH_BSHELL;
125
126 lc = layout_split_pane(wp, type, size, before, args_has(args, 'f'));
127 if (lc == NULL) {
128 cause = xstrdup("pane too small");
129 goto error;
130 }
131 new_wp = window_add_pane(w, wp, before, args_has(args, 'f'), hlimit);
132 layout_make_leaf(lc, new_wp);
133
134 path = NULL;
135 if (item->client != NULL && item->client->session == NULL)
136 envent = environ_find(item->client->environ, "PATH");
137 else
138 envent = environ_find(s->environ, "PATH");
139 if (envent != NULL)
140 path = envent->value;
141
142 env = environ_for_session(s, 0);
143 if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env,
144 s->tio, &cause) != 0) {
145 environ_free(env);
146 goto error;
147 }
148 environ_free(env);
149
150 layout_fix_panes(w, w->sx, w->sy);
151 server_redraw_window(w);
152
153 if (!args_has(args, 'd')) {
154 window_set_active_pane(w, new_wp);
155 session_select(s, wl->idx);
156 cmd_find_from_session(current, s, 0);
157 server_redraw_session(s);
158 } else
159 server_status_session(s);
160
161 if (args_has(args, 'P')) {
162 if ((template = args_get(args, 'F')) == NULL)
163 template = SPLIT_WINDOW_TEMPLATE;
164 cp = format_single(item, template, c, s, wl, new_wp);
165 cmdq_print(item, "%s", cp);
166 free(cp);
167 }
168 notify_window("window-layout-changed", w);
169
170 cmd_find_from_winlink_pane(&fs, wl, new_wp, 0);
171 hooks_insert(s->hooks, item, &fs, "after-split-window");
172
173 free(cwd);
174 return (CMD_RETURN_NORMAL);
175
176 error:
177 if (new_wp != NULL) {
178 layout_close_pane(new_wp);
179 window_remove_pane(w, new_wp);
180 }
181 cmdq_error(item, "create pane failed: %s", cause);
182 free(cause);
183
184 free(cwd);
185 return (CMD_RETURN_ERROR);
186 }
187