/* $OpenBSD: cmd-new-window.c,v 1.105 2026/10/09 13:12:14 nicm Exp $ */

/*

 * Copyright (c) 2007 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 <stdlib.h>

#include <string.h>

#include <unistd.h>

#include "tmux.h"

/*

 * Create a new window.

 */

#define NEW_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"

static enum cmd_retval  cmd_new_window_exec(struct cmd *, struct cmdq_item *);

const struct cmd_entry cmd_new_window_entry = {

  .name = "new-window",

  .description = "Create a window.",

  .alias = "neww",

  .args = { "abc:de:EF:kn:PSt:", 0, -1, NULL },

  .usage = "[-abdEkPS] [-c start-directory] [-e environment] [-F format] "

     "[-n window-name] " CMD_TARGET_WINDOW_USAGE

     " [shell-command [argument ...]]",

  .target = { 't', CMD_FIND_WINDOW, CMD_FIND_WINDOW_INDEX },

  .flags = 0,

  .exec = cmd_new_window_exec

};

static enum cmd_retval

cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)

{

  struct args   *args = cmd_get_args(self);

  struct client   *c = cmdq_get_client(item);

  struct cmd_find_state *current = cmdq_get_current(item);

  struct cmd_find_state *target = cmdq_get_target(item);

  struct spawn_context   sc = { 0 };

  struct client   *tc = cmdq_get_target_client(item);

  struct session    *s = target->s;

  struct winlink    *wl = target->wl, *new_wl = NULL;

  int      idx = target->idx, before;

  int      count = args_count(args);

  char      *cause = NULL, *cp, *expanded, *wname = NULL;

  const char    *template, *name;

  struct cmd_find_state  fs;

  struct args_value *av;

  if (args_has(args, 'E') &&

      count != 0 &&

      (count != 1 || *args_string(args, 0) != '\0')) {

    cmdq_error(item, "command cannot be given for empty pane");

    return (CMD_RETURN_ERROR);

  }

  /*

   * If -S is given, select an existing window instead of creating a

   * new one: preferring -t if it already points at a window, or

   * otherwise -n if one exists with that name. If neither matches,

   * fall through and create a window as normal.

   */

  name = args_get(args, 'n');

  if (name != NULL) {

    expanded = format_single(item, name, c, s, NULL, NULL);

    if (!check_name(expanded)) {

      cmdq_error(item, "invalid window name: %s", expanded);

      free(expanded);

      return (CMD_RETURN_ERROR);

    }

    wname = clean_name(expanded, 0);

    free(expanded);

  }

  if (args_has(args, 'S')) {

    if (idx != -1)

      new_wl = winlink_find_by_index(&s->windows, idx);

    else if (wname != NULL) {

      expanded = format_single(item, wname, c, s, NULL, NULL);

      RB_FOREACH(wl, winlinks, &s->windows) {

        if (strcmp(wl->window->name, expanded) != 0)

          continue;

        if (new_wl == NULL) {

          new_wl = wl;

          continue;

        }

        cmdq_error(item, "multiple windows named %s",

            wname);

        free(wname);

        free(expanded);

        return (CMD_RETURN_ERROR);

      }

      free(expanded);

    }

  }

  /* Found an existing window to select instead of creating a new one. */

  if (new_wl != NULL) {

    free(wname);

    if (args_has(args, 'd'))

      return (CMD_RETURN_NORMAL);

    if (session_set_current(s, new_wl) == 0)

      server_redraw_session(s);

    if (c != NULL && c->session != NULL)

      s->curw->window->latest = c;

    recalculate_sizes();

    return (CMD_RETURN_NORMAL);

  }

  before = args_has(args, 'b');

  if (args_has(args, 'a') || before) {

    idx = winlink_shuffle_up(s, wl, before);

    if (idx == -1)

      idx = target->idx;

  }

  sc.item = item;

  sc.s = s;

  sc.tc = tc;

  sc.name = wname;

  args_to_vector(args, &sc.argc, &sc.argv);

  sc.environ = environ_create();

  av = args_first_value(args, 'e');

  while (av != NULL) {

    environ_put(sc.environ, av->string, 0);

    av = args_next_value(av);

  }

  sc.idx = idx;

  sc.cwd = args_get(args, 'c');

  sc.flags = 0;

  if (args_has(args, 'E') || (count == 1 && *args_string(args, 0) == '\0'))

    sc.flags |= SPAWN_EMPTY;

  if (args_has(args, 'd'))

    sc.flags |= SPAWN_DETACHED;

  if (args_has(args, 'k'))

    sc.flags |= SPAWN_KILL;

  if ((new_wl = spawn_window(&sc, &cause)) == NULL) {

    cmdq_error(item, "create window failed: %s", cause);

    free(cause);

    goto fail;

  }

  if (!args_has(args, 'd') || new_wl == s->curw) {

    cmd_find_from_winlink(current, new_wl, 0);

    server_redraw_session_group(s);

  } else

    server_status_session_group(s);

  if (args_has(args, 'P')) {

    if ((template = args_get(args, 'F')) == NULL)

      template = NEW_WINDOW_TEMPLATE;

    cp = format_single(item, template, tc, s, new_wl,

      new_wl->window->active);

    cmdq_print(item, "%s", cp);

    free(cp);

  }

  cmd_find_from_winlink(&fs, new_wl, 0);

  cmdq_insert_hook(s, item, &fs, "after-new-window");

  if (sc.argv != NULL)

    cmd_free_argv(sc.argc, sc.argv);

  environ_free(sc.environ);

  free(wname);

  return (CMD_RETURN_NORMAL);

fail:

  if (sc.argv != NULL)

    cmd_free_argv(sc.argc, sc.argv);

  environ_free(sc.environ);

  free(wname);

  return (CMD_RETURN_ERROR);

}