/* $OpenBSD$ */

/*

* Copyright (c) 2011 George Nachman <tmux@georgester.com>

* 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 <string.h>

#include <unistd.h>

#include "tmux.h"

/*

* Join or move a pane into another (like split/swap/kill).

*/

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

const struct cmd_entry cmd_join_pane_entry = {

.name = "join-pane",

.alias = "joinp",

.args = { "bdfhvp:l:s:t:", 0, 0, NULL },

.usage = "[-bdfhv] [-l size] " CMD_SRCDST_PANE_USAGE,

.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },

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

.flags = 0,

.exec = cmd_join_pane_exec

};

const struct cmd_entry cmd_move_pane_entry = {

.name = "move-pane",

.alias = "movep",

.args = { "bdfhvp:l:s:t:", 0, 0, NULL },

.usage = "[-bdfhv] [-l size] " CMD_SRCDST_PANE_USAGE,

.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },

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

.flags = 0,

.exec = cmd_join_pane_exec

};

static enum cmd_retval

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

{

struct args *args = cmd_get_args(self);

struct cmd_find_state *current = cmdq_get_current(item);

struct cmd_find_state *target = cmdq_get_target(item);

struct cmd_find_state *source = cmdq_get_source(item);

struct session *dst_s;

struct winlink *src_wl, *dst_wl;

struct window *src_w, *dst_w;

struct window_pane *src_wp, *dst_wp;

char *cause = NULL;

int size, dst_idx;

int flags;

enum layout_type type;

struct layout_cell *lc;

u_int curval = 0;

dst_s = target->s;

dst_wl = target->wl;

dst_wp = target->wp;

dst_w = dst_wl->window;

dst_idx = dst_wl->idx;

server_unzoom_window(dst_w);

src_wl = source->wl;

src_wp = source->wp;

src_w = src_wl->window;

server_unzoom_window(src_w);

if (src_wp == dst_wp) {

cmdq_error(item, "source and target panes must be different");

return (CMD_RETURN_ERROR);

}

type = LAYOUT_TOPBOTTOM;

if (args_has(args, 'h'))

type = LAYOUT_LEFTRIGHT;

/* If the 'p' flag is dropped then this bit can be moved into 'l'. */

if (args_has(args, 'l') || args_has(args, 'p')) {

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

if (type == LAYOUT_TOPBOTTOM)

curval = dst_w->sy;

else

curval = dst_w->sx;

} else {

if (type == LAYOUT_TOPBOTTOM)

curval = dst_wp->sy;

else

curval = dst_wp->sx;

}

}

size = -1;

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

size = args_percentage_and_expand(args, 'l', 0, INT_MAX, curval,

item, &cause);

} else if (args_has(args, 'p')) {

size = args_strtonum_and_expand(args, 'l', 0, 100, item,

&cause);

if (cause == NULL)

size = curval * size / 100;

}

if (cause != NULL) {

cmdq_error(item, "size %s", cause);

free(cause);

return (CMD_RETURN_ERROR);

}

flags = 0;

if (args_has(args, 'b'))

flags |= SPAWN_BEFORE;

if (args_has(args, 'f'))

flags |= SPAWN_FULLSIZE;

lc = layout_split_pane(dst_wp, type, size, flags);

if (lc == NULL) {

cmdq_error(item, "create pane failed: pane too small");

return (CMD_RETURN_ERROR);

}

layout_close_pane(src_wp);

server_client_remove_pane(src_wp);

window_lost_pane(src_w, src_wp);

TAILQ_REMOVE(&src_w->panes, src_wp, entry);

src_wp->window = dst_w;

options_set_parent(src_wp->options, dst_w->options);

src_wp->flags |= PANE_STYLECHANGED;

if (flags & SPAWN_BEFORE)

TAILQ_INSERT_BEFORE(dst_wp, src_wp, entry);

else

TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);

layout_assign_pane(lc, src_wp, 0);

colour_palette_from_option(&src_wp->palette, src_wp->options);

recalculate_sizes();

server_redraw_window(src_w);

server_redraw_window(dst_w);

if (!args_has(args, 'd')) {

window_set_active_pane(dst_w, src_wp, 1);

session_select(dst_s, dst_idx);

cmd_find_from_session(current, dst_s, 0);

server_redraw_session(dst_s);

} else

server_status_session(dst_s);

if (window_count_panes(src_w) == 0)

server_kill_window(src_w, 1);

else

notify_window("window-layout-changed", src_w);

notify_window("window-layout-changed", dst_w);

return (CMD_RETURN_NORMAL);

}