1 /* Id */
2
3 /*
4 * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
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 void cmd_split_window_key_binding(struct cmd *, int);
34 enum cmd_retval cmd_split_window_exec(struct cmd *, struct cmd_q *);
35
36 const struct cmd_entry cmd_split_window_entry = {
37 "split-window", "splitw",
38 "c:dF:l:hp:Pt:v", 0, 1,
39 "[-dhvP] [-c start-directory] [-F format] [-p percentage|-l size] "
40 CMD_TARGET_PANE_USAGE " [command]",
41 0,
42 cmd_split_window_key_binding,
43 cmd_split_window_exec
44 };
45
46 void
cmd_split_window_key_binding(struct cmd * self,int key)47 cmd_split_window_key_binding(struct cmd *self, int key)
48 {
49 self->args = args_create(0);
50 if (key == '%')
51 args_set(self->args, 'h', NULL);
52 }
53
54 enum cmd_retval
cmd_split_window_exec(struct cmd * self,struct cmd_q * cmdq)55 cmd_split_window_exec(struct cmd *self, struct cmd_q *cmdq)
56 {
57 struct args *args = self->args;
58 struct session *s;
59 struct winlink *wl;
60 struct window *w;
61 struct window_pane *wp, *new_wp = NULL;
62 struct environ env;
63 const char *cmd, *shell, *template;
64 char *cause, *new_cause, *cp;
65 u_int hlimit;
66 int size, percentage, cwd, fd = -1;
67 enum layout_type type;
68 struct layout_cell *lc;
69 struct client *c;
70 struct format_tree *ft;
71
72 if ((wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp)) == NULL)
73 return (CMD_RETURN_ERROR);
74 w = wl->window;
75 server_unzoom_window(w);
76
77 environ_init(&env);
78 environ_copy(&global_environ, &env);
79 environ_copy(&s->environ, &env);
80 server_fill_environ(s, &env);
81
82 if (args->argc == 0)
83 cmd = options_get_string(&s->options, "default-command");
84 else
85 cmd = args->argv[0];
86
87 if (args_has(args, 'c')) {
88 ft = format_create();
89 if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL)
90 format_client(ft, c);
91 format_session(ft, s);
92 format_winlink(ft, s, s->curw);
93 format_window_pane(ft, s->curw->window->active);
94 cp = format_expand(ft, args_get(args, 'c'));
95 format_free(ft);
96
97 if (cp != NULL && *cp != '\0') {
98 fd = open(cp, O_RDONLY|O_DIRECTORY);
99 free(cp);
100 if (fd == -1) {
101 cmdq_error(cmdq, "bad working directory: %s",
102 strerror(errno));
103 return (CMD_RETURN_ERROR);
104 }
105 } else if (cp != NULL)
106 free(cp);
107 cwd = fd;
108 } else if (cmdq->client != NULL && cmdq->client->session == NULL)
109 cwd = cmdq->client->cwd;
110 else
111 cwd = s->cwd;
112
113 type = LAYOUT_TOPBOTTOM;
114 if (args_has(args, 'h'))
115 type = LAYOUT_LEFTRIGHT;
116
117 size = -1;
118 if (args_has(args, 'l')) {
119 size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
120 if (cause != NULL) {
121 xasprintf(&new_cause, "size %s", cause);
122 free(cause);
123 cause = new_cause;
124 goto error;
125 }
126 } else if (args_has(args, 'p')) {
127 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
128 if (cause != NULL) {
129 xasprintf(&new_cause, "percentage %s", cause);
130 free(cause);
131 cause = new_cause;
132 goto error;
133 }
134 if (type == LAYOUT_TOPBOTTOM)
135 size = (wp->sy * percentage) / 100;
136 else
137 size = (wp->sx * percentage) / 100;
138 }
139 hlimit = options_get_number(&s->options, "history-limit");
140
141 shell = options_get_string(&s->options, "default-shell");
142 if (*shell == '\0' || areshell(shell))
143 shell = _PATH_BSHELL;
144
145 if ((lc = layout_split_pane(wp, type, size, 0)) == NULL) {
146 cause = xstrdup("pane too small");
147 goto error;
148 }
149 new_wp = window_add_pane(w, hlimit);
150 if (window_pane_spawn(
151 new_wp, cmd, shell, cwd, &env, s->tio, &cause) != 0)
152 goto error;
153 layout_assign_pane(lc, new_wp);
154
155 server_redraw_window(w);
156
157 if (!args_has(args, 'd')) {
158 window_set_active_pane(w, new_wp);
159 session_select(s, wl->idx);
160 server_redraw_session(s);
161 } else
162 server_status_session(s);
163
164 environ_free(&env);
165
166 if (args_has(args, 'P')) {
167 if ((template = args_get(args, 'F')) == NULL)
168 template = SPLIT_WINDOW_TEMPLATE;
169
170 ft = format_create();
171 if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL)
172 format_client(ft, c);
173 format_session(ft, s);
174 format_winlink(ft, s, wl);
175 format_window_pane(ft, new_wp);
176
177 cp = format_expand(ft, template);
178 cmdq_print(cmdq, "%s", cp);
179 free(cp);
180
181 format_free(ft);
182 }
183 notify_window_layout_changed(w);
184
185 if (fd != -1)
186 close(fd);
187 return (CMD_RETURN_NORMAL);
188
189 error:
190 environ_free(&env);
191 if (new_wp != NULL)
192 window_remove_pane(w, new_wp);
193 cmdq_error(cmdq, "create pane failed: %s", cause);
194 free(cause);
195 if (fd != -1)
196 close(fd);
197 return (CMD_RETURN_ERROR);
198 }
199