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Move window name changes into wrapper function window_set_name, from
George Nachman.

/* $OpenBSD: cmd-break-pane.c,v 1.12 2012/02/02 00:10:11 nicm Exp $ */

/*
 * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
 *
 * 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"

/*
 * Break pane off into a window.
 */

int	cmd_break_pane_exec(struct cmd *, struct cmd_ctx *);

const struct cmd_entry cmd_break_pane_entry = {
	"break-pane", "breakp",
	"dt:", 0, 0,
	"[-d] " CMD_TARGET_PANE_USAGE,
	0,
	NULL,
	NULL,
	cmd_break_pane_exec
};

int
cmd_break_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
{
	struct args		*args = self->args;
	struct winlink		*wl;
	struct session		*s;
	struct window_pane	*wp;
	struct window		*w;
	char			*name;
	char			*cause;
	int			 base_idx;

	if ((wl = cmd_find_pane(ctx, args_get(args, 't'), &s, &wp)) == NULL)
		return (-1);

	if (window_count_panes(wl->window) == 1) {
		ctx->error(ctx, "can't break with only one pane");
		return (-1);
	}

	w = wl->window;
	TAILQ_REMOVE(&w->panes, wp, entry);
	if (wp == w->active) {
		w->active = w->last;
		w->last = NULL;
		if (w->active == NULL) {
			w->active = TAILQ_PREV(wp, window_panes, entry);
			if (w->active == NULL)
				w->active = TAILQ_NEXT(wp, entry);
		}
	} else if (wp == w->last)
		w->last = NULL;
	layout_close_pane(wp);

	w = wp->window = window_create1(s->sx, s->sy);
	TAILQ_INSERT_HEAD(&w->panes, wp, entry);
	w->active = wp;
	name = default_window_name(w);
	window_set_name(w, name);
	xfree(name);
	layout_init(w);

	base_idx = options_get_number(&s->options, "base-index");
	wl = session_attach(s, w, -1 - base_idx, &cause); /* can't fail */
	if (!args_has(self->args, 'd'))
		session_select(s, wl->idx);

	server_redraw_session(s);
	server_status_session_group(s);

	return (0);
}