1/* $Id: cmd-split-window.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv 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 <stdlib.h>
22#include <unistd.h>
23
24#include "tmux.h"
25
26/*
27 * Split a window (add a new pane).
28 */
29
30void	cmd_split_window_key_binding(struct cmd *, int);
31int	cmd_split_window_exec(struct cmd *, struct cmd_ctx *);
32
33const struct cmd_entry cmd_split_window_entry = {
34	"split-window", "splitw",
35	"dl:hp:Pt:v", 0, 1,
36	"[-dhvP] [-p percentage|-l size] [-t target-pane] [command]",
37	0,
38	cmd_split_window_key_binding,
39	NULL,
40	cmd_split_window_exec
41};
42
43void
44cmd_split_window_key_binding(struct cmd *self, int key)
45{
46	self->args = args_create(0);
47	if (key == '%')
48		args_set(self->args, 'h', NULL);
49}
50
51int
52cmd_split_window_exec(struct cmd *self, struct cmd_ctx *ctx)
53{
54	struct args		*args = self->args;
55	struct session		*s;
56	struct winlink		*wl;
57	struct window		*w;
58	struct window_pane	*wp, *new_wp = NULL;
59	struct environ		 env;
60	char		 	*cmd, *cwd, *cause;
61	const char		*shell;
62	u_int			 hlimit, paneidx;
63	int			 size, percentage;
64	enum layout_type	 type;
65	struct layout_cell	*lc;
66
67	if ((wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp)) == NULL)
68		return (-1);
69	w = wl->window;
70
71	environ_init(&env);
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	else
79		cmd = args->argv[0];
80	cwd = options_get_string(&s->options, "default-path");
81	if (*cwd == '\0') {
82		if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
83			cwd = ctx->cmdclient->cwd;
84		else
85			cwd = s->cwd;
86	}
87
88	type = LAYOUT_TOPBOTTOM;
89	if (args_has(args, 'h'))
90		type = LAYOUT_LEFTRIGHT;
91
92	size = -1;
93	if (args_has(args, 'l')) {
94		size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
95		if (cause != NULL) {
96			ctx->error(ctx, "size %s", cause);
97			xfree(cause);
98			return (-1);
99		}
100	} else if (args_has(args, 'p')) {
101		percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
102		if (cause != NULL) {
103			ctx->error(ctx, "percentage %s", cause);
104			xfree(cause);
105			return (-1);
106		}
107		if (type == LAYOUT_TOPBOTTOM)
108			size = (wp->sy * percentage) / 100;
109		else
110			size = (wp->sx * percentage) / 100;
111	}
112	hlimit = options_get_number(&s->options, "history-limit");
113
114	shell = options_get_string(&s->options, "default-shell");
115	if (*shell == '\0' || areshell(shell))
116		shell = _PATH_BSHELL;
117
118	if ((lc = layout_split_pane(wp, type, size)) == NULL) {
119		cause = xstrdup("pane too small");
120		goto error;
121	}
122	new_wp = window_add_pane(w, hlimit);
123	if (window_pane_spawn(
124	    new_wp, cmd, shell, cwd, &env, s->tio, &cause) != 0)
125		goto error;
126	layout_assign_pane(lc, new_wp);
127
128	server_redraw_window(w);
129
130	if (!args_has(args, 'd')) {
131		window_set_active_pane(w, new_wp);
132		session_select(s, wl->idx);
133		server_redraw_session(s);
134	} else
135		server_status_session(s);
136
137	environ_free(&env);
138
139	if (args_has(args, 'P')) {
140		paneidx = window_pane_index(wl->window, new_wp);
141		ctx->print(ctx, "%s:%u.%u", s->name, wl->idx, paneidx);
142	}
143	return (0);
144
145error:
146	environ_free(&env);
147	if (new_wp != NULL)
148		window_remove_pane(w, new_wp);
149	ctx->error(ctx, "create pane failed: %s", cause);
150	xfree(cause);
151	return (-1);
152}
153