cmd-split-window.c revision 1.24 
1/* $OpenBSD: cmd-split-window.c,v 1.24 2011/08/30 09:18:52 nicm Exp $ */
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 <paths.h>
22#include <stdlib.h>
23#include <unistd.h>
24
25#include "tmux.h"
26
27/*
28 * Split a window (add a new pane).
29 */
30
31void	cmd_split_window_key_binding(struct cmd *, int);
32int	cmd_split_window_exec(struct cmd *, struct cmd_ctx *);
33
34const struct cmd_entry cmd_split_window_entry = {
35	"split-window", "splitw",
36	"dl:hp:Pt:v", 0, 1,
37	"[-dhvP] [-p percentage|-l size] [-t target-pane] [command]",
38	0,
39	cmd_split_window_key_binding,
40	NULL,
41	cmd_split_window_exec
42};
43
44void
45cmd_split_window_key_binding(struct cmd *self, int key)
46{
47	self->args = args_create(0);
48	if (key == '%')
49		args_set(self->args, 'h', NULL);
50}
51
52int
53cmd_split_window_exec(struct cmd *self, struct cmd_ctx *ctx)
54{
55	struct args		*args = self->args;
56	struct session		*s;
57	struct winlink		*wl;
58	struct window		*w;
59	struct window_pane	*wp, *new_wp = NULL;
60	struct environ		 env;
61	char		 	*cmd, *cwd, *cause, *new_cause;
62	const char		*shell;
63	u_int			 hlimit, paneidx;
64	int			 size, percentage;
65	enum layout_type	 type;
66	struct layout_cell	*lc;
67
68	if ((wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp)) == NULL)
69		return (-1);
70	w = wl->window;
71
72	environ_init(&env);
73	environ_copy(&global_environ, &env);
74	environ_copy(&s->environ, &env);
75	server_fill_environ(s, &env);
76
77	if (args->argc == 0)
78		cmd = options_get_string(&s->options, "default-command");
79	else
80		cmd = args->argv[0];
81	cwd = options_get_string(&s->options, "default-path");
82	if (*cwd == '\0') {
83		if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
84			cwd = ctx->cmdclient->cwd;
85		else
86			cwd = s->cwd;
87	}
88
89	type = LAYOUT_TOPBOTTOM;
90	if (args_has(args, 'h'))
91		type = LAYOUT_LEFTRIGHT;
92
93	size = -1;
94	if (args_has(args, 'l')) {
95		size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
96		if (cause != NULL) {
97			xasprintf(&new_cause, "size %s", cause);
98			xfree(cause);
99			cause = new_cause;
100			goto error;
101		}
102	} else if (args_has(args, 'p')) {
103		percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
104		if (cause != NULL) {
105			xasprintf(&new_cause, "percentage %s", cause);
106			xfree(cause);
107			cause = new_cause;
108			goto error;
109		}
110		if (type == LAYOUT_TOPBOTTOM)
111			size = (wp->sy * percentage) / 100;
112		else
113			size = (wp->sx * percentage) / 100;
114	}
115	hlimit = options_get_number(&s->options, "history-limit");
116
117	shell = options_get_string(&s->options, "default-shell");
118	if (*shell == '\0' || areshell(shell))
119		shell = _PATH_BSHELL;
120
121	if ((lc = layout_split_pane(wp, type, size)) == NULL) {
122		cause = xstrdup("pane too small");
123		goto error;
124	}
125	new_wp = window_add_pane(w, hlimit);
126	if (window_pane_spawn(
127	    new_wp, cmd, shell, cwd, &env, s->tio, &cause) != 0)
128		goto error;
129	layout_assign_pane(lc, new_wp);
130
131	server_redraw_window(w);
132
133	if (!args_has(args, 'd')) {
134		window_set_active_pane(w, new_wp);
135		session_select(s, wl->idx);
136		server_redraw_session(s);
137	} else
138		server_status_session(s);
139
140	environ_free(&env);
141
142	if (args_has(args, 'P')) {
143		paneidx = window_pane_index(wl->window, new_wp);
144		ctx->print(ctx, "%s:%u.%u", s->name, wl->idx, paneidx);
145	}
146	return (0);
147
148error:
149	environ_free(&env);
150	if (new_wp != NULL)
151		window_remove_pane(w, new_wp);
152	ctx->error(ctx, "create pane failed: %s", cause);
153	xfree(cause);
154	return (-1);
155}
156