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Add a client flag 'active-pane' which stores the active pane in the
client and allows it to be changed independently from the real active
pane stored in the window. This is can be used with session groups which
allow an independent current window (although it would be nice to have a
flag for this too and remove session groups). The client active pane is
only really useful interactively, many things (hooks, window-style,
zooming) still use the window active pane.

/* $OpenBSD: cmd-kill-pane.c,v 1.30 2020/05/16 16:20:59 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 <stdlib.h>

#include "tmux.h"

/*
 * Kill pane.
 */

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

const struct cmd_entry cmd_kill_pane_entry = {
	.name = "kill-pane",
	.alias = "killp",

	.args = { "at:", 0, 0 },
	.usage = "[-a] " CMD_TARGET_PANE_USAGE,

	.target = { 't', CMD_FIND_PANE, 0 },

	.flags = CMD_AFTERHOOK,
	.exec = cmd_kill_pane_exec
};

static enum cmd_retval
cmd_kill_pane_exec(struct cmd *self, struct cmdq_item *item)
{
	struct args		*args = cmd_get_args(self);
	struct cmd_find_state	*target = cmdq_get_target(item);
	struct winlink		*wl = target->wl;
	struct window_pane	*loopwp, *tmpwp, *wp = target->wp;

	if (args_has(args, 'a')) {
		server_unzoom_window(wl->window);
		TAILQ_FOREACH_SAFE(loopwp, &wl->window->panes, entry, tmpwp) {
			if (loopwp == wp)
				continue;
			server_client_remove_pane(loopwp);
			layout_close_pane(loopwp);
			window_remove_pane(wl->window, loopwp);
		}
		server_redraw_window(wl->window);
		return (CMD_RETURN_NORMAL);
	}

	server_kill_pane(wp);
	return (CMD_RETURN_NORMAL);
}