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/* $OpenBSD: cmd-split-window.c,v 1.85 2017/05/30 21:44:59 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "tmux.h"
/*
* Split a window (add a new pane).
*/
#define SPLIT_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"
static enum cmd_retval cmd_split_window_exec(struct cmd *,
struct cmdq_item *);
const struct cmd_entry cmd_split_window_entry = {
.name = "split-window",
.alias = "splitw",
.args = { "bc:dfF:l:hp:Pt:v", 0, -1 },
.usage = "[-bdfhvP] [-c start-directory] [-F format] "
"[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]",
.target = { 't', CMD_FIND_PANE, 0 },
.flags = 0,
.exec = cmd_split_window_exec
};
static enum cmd_retval
cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
{
struct cmd_find_state *current = &item->shared->current;
struct args *args = self->args;
struct client *c = cmd_find_client(item, NULL, 1);
struct session *s = item->target.s;
struct winlink *wl = item->target.wl;
struct window *w = wl->window;
struct window_pane *wp = item->target.wp, *new_wp = NULL;
struct environ *env;
const char *cmd, *path, *shell, *template, *cwd, *to_free;
char **argv, *cause, *new_cause, *cp;
u_int hlimit;
int argc, size, percentage;
enum layout_type type;
struct layout_cell *lc;
struct environ_entry *envent;
struct cmd_find_state fs;
server_unzoom_window(w);
if (args->argc == 0) {
cmd = options_get_string(s->options, "default-command");
if (cmd != NULL && *cmd != '\0') {
argc = 1;
argv = (char **)&cmd;
} else {
argc = 0;
argv = NULL;
}
} else {
argc = args->argc;
argv = args->argv;
}
to_free = NULL;
if (args_has(args, 'c')) {
cwd = args_get(args, 'c');
to_free = cwd = format_single(item, cwd, c, s, NULL, NULL);
} else if (item->client != NULL && item->client->session == NULL)
cwd = item->client->cwd;
else
cwd = s->cwd;
type = LAYOUT_TOPBOTTOM;
if (args_has(args, 'h'))
type = LAYOUT_LEFTRIGHT;
size = -1;
if (args_has(args, 'l')) {
size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
if (cause != NULL) {
xasprintf(&new_cause, "size %s", cause);
free(cause);
cause = new_cause;
goto error;
}
} else if (args_has(args, 'p')) {
percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
if (cause != NULL) {
xasprintf(&new_cause, "percentage %s", cause);
free(cause);
cause = new_cause;
goto error;
}
if (type == LAYOUT_TOPBOTTOM)
size = (wp->sy * percentage) / 100;
else
size = (wp->sx * percentage) / 100;
}
hlimit = options_get_number(s->options, "history-limit");
shell = options_get_string(s->options, "default-shell");
if (*shell == '\0' || areshell(shell))
shell = _PATH_BSHELL;
lc = layout_split_pane(wp, type, size, args_has(args, 'b'),
args_has(args, 'f'));
if (lc == NULL) {
cause = xstrdup("pane too small");
goto error;
}
new_wp = window_add_pane(w, wp, args_has(args, 'b'), hlimit);
layout_make_leaf(lc, new_wp);
path = NULL;
if (item->client != NULL && item->client->session == NULL)
envent = environ_find(item->client->environ, "PATH");
else
envent = environ_find(s->environ, "PATH");
if (envent != NULL)
path = envent->value;
env = environ_for_session(s, 0);
if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env,
s->tio, &cause) != 0) {
environ_free(env);
goto error;
}
environ_free(env);
layout_fix_panes(w, w->sx, w->sy);
server_redraw_window(w);
if (!args_has(args, 'd')) {
window_set_active_pane(w, new_wp);
session_select(s, wl->idx);
cmd_find_from_session(current, s);
server_redraw_session(s);
} else
server_status_session(s);
if (args_has(args, 'P')) {
if ((template = args_get(args, 'F')) == NULL)
template = SPLIT_WINDOW_TEMPLATE;
cp = format_single(item, template, c, s, wl, new_wp);
cmdq_print(item, "%s", cp);
free(cp);
}
notify_window("window-layout-changed", w);
if (to_free != NULL)
free((void *)to_free);
cmd_find_from_winlink_pane(&fs, wl, new_wp);
hooks_insert(s->hooks, item, &fs, "after-split-window");
return (CMD_RETURN_NORMAL);
error:
if (new_wp != NULL) {
layout_close_pane(new_wp);
window_remove_pane(w, new_wp);
}
cmdq_error(item, "create pane failed: %s", cause);
free(cause);
if (to_free != NULL)
free((void *)to_free);
return (CMD_RETURN_ERROR);
}
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