tmux/cmd-swap-pane.c

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/* $OpenBSD$ */
/*
* 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"
/*
* Swap two panes.
*/
int cmd_swap_pane_parse(struct cmd *, int, char **, char **);
int cmd_swap_pane_exec(struct cmd *, struct cmd_ctx *);
void cmd_swap_pane_free(struct cmd *);
void cmd_swap_pane_init(struct cmd *, int);
size_t cmd_swap_pane_print(struct cmd *, char *, size_t);
struct cmd_swap_pane_data {
char *target;
int src;
int dst;
int flag_detached;
int flag_up;
int flag_down;
};
const struct cmd_entry cmd_swap_pane_entry = {
"swap-pane", "swapp",
"[-dDU] [-t target-window] [-p src-index] [-q dst-index]",
0, 0,
cmd_swap_pane_init,
cmd_swap_pane_parse,
cmd_swap_pane_exec,
cmd_swap_pane_free,
cmd_swap_pane_print
};
void
cmd_swap_pane_init(struct cmd *self, int key)
{
struct cmd_swap_pane_data *data;
self->data = data = xmalloc(sizeof *data);
data->target = NULL;
data->src = -1;
data->dst = -1;
data->flag_detached = 0;
data->flag_up = 0;
data->flag_down = 0;
switch (key) {
case '{':
data->flag_up = 1;
break;
case '}':
data->flag_down = 1;
break;
}
}
int
cmd_swap_pane_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_swap_pane_data *data;
int opt, n;
const char *errstr;
self->entry->init(self, 0);
data = self->data;
while ((opt = getopt(argc, argv, "dDt:p:q:U")) != -1) {
switch (opt) {
case 'd':
data->flag_detached = 1;
break;
case 'D':
data->flag_up = 0;
data->flag_down = 1;
data->dst = -1;
break;
case 't':
if (data->target == NULL)
data->target = xstrdup(optarg);
break;
case 'p':
if (data->src == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "src %s", errstr);
goto error;
}
data->src = n;
}
break;
case 'q':
if (data->dst == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "dst %s", errstr);
goto error;
}
data->dst = n;
}
data->flag_up = 0;
data->flag_down = 0;
break;
case 'U':
data->flag_up = 1;
data->flag_down = 0;
data->dst = -1;
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
if (argc != 0)
goto usage;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
error:
self->entry->free(self);
return (-1);
}
int
cmd_swap_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_swap_pane_data *data = self->data;
struct winlink *wl;
struct window *w;
struct window_pane *tmp_wp, *src_wp, *dst_wp;
struct layout_cell *lc;
u_int sx, sy, xoff, yoff;
if (data == NULL)
return (0);
if ((wl = cmd_find_window(ctx, data->target, NULL)) == NULL)
return (-1);
w = wl->window;
if (data->src == -1)
src_wp = w->active;
else {
src_wp = window_pane_at_index(w, data->src);
if (src_wp == NULL) {
ctx->error(ctx, "no pane: %d", data->src);
return (-1);
}
}
if (data->dst == -1)
dst_wp = w->active;
else {
dst_wp = window_pane_at_index(w, data->dst);
if (dst_wp == NULL) {
ctx->error(ctx, "no pane: %d", data->dst);
return (-1);
}
}
if (data->dst == -1 && data->flag_up) {
if ((dst_wp = TAILQ_PREV(src_wp, window_panes, entry)) == NULL)
dst_wp = TAILQ_LAST(&w->panes, window_panes);
}
if (data->dst == -1 && data->flag_down) {
if ((dst_wp = TAILQ_NEXT(src_wp, entry)) == NULL)
dst_wp = TAILQ_FIRST(&w->panes);
}
if (src_wp == dst_wp)
return (0);
tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
TAILQ_REMOVE(&w->panes, dst_wp, entry);
TAILQ_REPLACE(&w->panes, src_wp, dst_wp, entry);
if (tmp_wp == src_wp)
tmp_wp = dst_wp;
if (tmp_wp == NULL)
TAILQ_INSERT_HEAD(&w->panes, src_wp, entry);
else
TAILQ_INSERT_AFTER(&w->panes, tmp_wp, src_wp, entry);
lc = src_wp->layout_cell;
src_wp->layout_cell = dst_wp->layout_cell;
if (src_wp->layout_cell != NULL)
src_wp->layout_cell->wp = src_wp;
dst_wp->layout_cell = lc;
if (dst_wp->layout_cell != NULL)
dst_wp->layout_cell->wp = dst_wp;
sx = src_wp->sx; sy = src_wp->sy;
xoff = src_wp->xoff; yoff = src_wp->yoff;
src_wp->xoff = dst_wp->xoff; src_wp->yoff = dst_wp->yoff;
window_pane_resize(src_wp, dst_wp->sx, dst_wp->sy);
dst_wp->xoff = xoff; dst_wp->yoff = yoff;
window_pane_resize(dst_wp, sx, sy);
if (!data->flag_detached) {
tmp_wp = dst_wp;
if (!window_pane_visible(tmp_wp))
tmp_wp = src_wp;
window_set_active_pane(w, tmp_wp);
}
server_redraw_window(w);
return (0);
}
void
cmd_swap_pane_free(struct cmd *self)
{
struct cmd_swap_pane_data *data = self->data;
if (data->target != NULL)
xfree(data->target);
xfree(data);
}
size_t
cmd_swap_pane_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_swap_pane_data *data = self->data;
size_t off = 0;
off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
if (off < len &&
(data->flag_down || data->flag_up || data->flag_detached)) {
off += xsnprintf(buf + off, len - off, " -");
if (off < len && data->flag_detached)
off += xsnprintf(buf + off, len - off, "d");
if (off < len && data->flag_up)
off += xsnprintf(buf + off, len - off, "D");
if (off < len && data->flag_down)
off += xsnprintf(buf + off, len - off, "U");
}
if (off < len && data->target != NULL)
off += cmd_prarg(buf + off, len - off, " -t ", data->target);
if (off < len && data->src != -1)
off += xsnprintf(buf + off, len - off, " -p %d", data->src);
if (off < len && data->dst != -1)
off += xsnprintf(buf + off, len - off, " -q %d", data->dst);
return (off);
}