cmd-split-window.c revision 1.12.2.1 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:de:fF:hIl:p:Pt:vZ", 0, -1, NULL },
43 .usage = "[-bdefhIPvZ] [-c start-directory] [-e environment] "
44 "[-F format] [-l size] " CMD_TARGET_PANE_USAGE
45 "[shell-command]",
46
47 .target = { 't', CMD_FIND_PANE, 0 },
48
49 .flags = 0,
50 .exec = cmd_split_window_exec
51 };
52
53 static enum cmd_retval
54 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
55 {
56 struct args *args = cmd_get_args(self);
57 struct cmd_find_state *current = cmdq_get_current(item);
58 struct cmd_find_state *target = cmdq_get_target(item);
59 struct spawn_context sc = { 0 };
60 struct client *tc = cmdq_get_target_client(item);
61 struct session *s = target->s;
62 struct winlink *wl = target->wl;
63 struct window *w = wl->window;
64 struct window_pane *wp = target->wp, *new_wp;
65 enum layout_type type;
66 struct layout_cell *lc;
67 struct cmd_find_state fs;
68 int size, flags, input;
69 const char *template;
70 char *cause = NULL, *cp;
71 struct args_value *av;
72 u_int count = args_count(args), curval = 0;
73
74 type = LAYOUT_TOPBOTTOM;
75 if (args_has(args, 'h'))
76 type = LAYOUT_LEFTRIGHT;
77
78 /* If the 'p' flag is dropped then this bit can be moved into 'l'. */
79 if (args_has(args, 'l') || args_has(args, 'p')) {
80 if (args_has(args, 'f')) {
81 if (type == LAYOUT_TOPBOTTOM)
82 curval = w->sy;
83 else
84 curval = w->sx;
85 } else {
86 if (type == LAYOUT_TOPBOTTOM)
87 curval = wp->sy;
88 else
89 curval = wp->sx;
90 }
91 }
92
93 size = -1;
94 if (args_has(args, 'l')) {
95 size = args_percentage_and_expand(args, 'l', 0, INT_MAX, curval,
96 item, &cause);
97 } else if (args_has(args, 'p')) {
98 size = args_strtonum_and_expand(args, 'p', 0, 100, item,
99 &cause);
100 if (cause == NULL)
101 size = curval * size / 100;
102 }
103 if (cause != NULL) {
104 cmdq_error(item, "size %s", cause);
105 free(cause);
106 return (CMD_RETURN_ERROR);
107 }
108
109 window_push_zoom(wp->window, 1, args_has(args, 'Z'));
110 input = (args_has(args, 'I') && count == 0);
111
112 flags = 0;
113 if (args_has(args, 'b'))
114 flags |= SPAWN_BEFORE;
115 if (args_has(args, 'f'))
116 flags |= SPAWN_FULLSIZE;
117 if (input || (count == 1 && *args_string(args, 0) == '\0'))
118 flags |= SPAWN_EMPTY;
119
120 lc = layout_split_pane(wp, type, size, flags);
121 if (lc == NULL) {
122 cmdq_error(item, "no space for new pane");
123 return (CMD_RETURN_ERROR);
124 }
125
126 sc.item = item;
127 sc.s = s;
128 sc.wl = wl;
129
130 sc.wp0 = wp;
131 sc.lc = lc;
132
133 args_to_vector(args, &sc.argc, &sc.argv);
134 sc.environ = environ_create();
135
136 av = args_first_value(args, 'e');
137 while (av != NULL) {
138 environ_put(sc.environ, av->string, 0);
139 av = args_next_value(av);
140 }
141
142 sc.idx = -1;
143 sc.cwd = args_get(args, 'c');
144
145 sc.flags = flags;
146 if (args_has(args, 'd'))
147 sc.flags |= SPAWN_DETACHED;
148 if (args_has(args, 'Z'))
149 sc.flags |= SPAWN_ZOOM;
150
151 if ((new_wp = spawn_pane(&sc, &cause)) == NULL) {
152 cmdq_error(item, "create pane failed: %s", cause);
153 free(cause);
154 if (sc.argv != NULL)
155 cmd_free_argv(sc.argc, sc.argv);
156 environ_free(sc.environ);
157 return (CMD_RETURN_ERROR);
158 }
159 if (input) {
160 switch (window_pane_start_input(new_wp, item, &cause)) {
161 case -1:
162 server_client_remove_pane(new_wp);
163 layout_close_pane(new_wp);
164 window_remove_pane(wp->window, new_wp);
165 cmdq_error(item, "%s", cause);
166 free(cause);
167 if (sc.argv != NULL)
168 cmd_free_argv(sc.argc, sc.argv);
169 environ_free(sc.environ);
170 return (CMD_RETURN_ERROR);
171 case 1:
172 input = 0;
173 break;
174 }
175 }
176 if (!args_has(args, 'd'))
177 cmd_find_from_winlink_pane(current, wl, new_wp, 0);
178 window_pop_zoom(wp->window);
179 server_redraw_window(wp->window);
180 server_status_session(s);
181
182 if (args_has(args, 'P')) {
183 if ((template = args_get(args, 'F')) == NULL)
184 template = SPLIT_WINDOW_TEMPLATE;
185 cp = format_single(item, template, tc, s, wl, new_wp);
186 cmdq_print(item, "%s", cp);
187 free(cp);
188 }
189
190 cmd_find_from_winlink_pane(&fs, wl, new_wp, 0);
191 cmdq_insert_hook(s, item, &fs, "after-split-window");
192
193 if (sc.argv != NULL)
194 cmd_free_argv(sc.argc, sc.argv);
195 environ_free(sc.environ);
196 if (input)
197 return (CMD_RETURN_WAIT);
198 return (CMD_RETURN_NORMAL);
199 }
200